US20050139334A1 - Elongated element for the frame of a panel system comprising a flexible sheet material - Google Patents
Elongated element for the frame of a panel system comprising a flexible sheet material Download PDFInfo
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- US20050139334A1 US20050139334A1 US10/964,763 US96476304A US2005139334A1 US 20050139334 A1 US20050139334 A1 US 20050139334A1 US 96476304 A US96476304 A US 96476304A US 2005139334 A1 US2005139334 A1 US 2005139334A1
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- sheet material
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
- E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0692—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining flexible sheets to other sheets or plates or to strips or bars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
- E04B2009/0492—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like with fabrics tensioned on frames
Definitions
- the present invention refers in general to frames which can be used for supporting and stretching a flexible sheet material, for the purpose of manufacturing a panel system which can be used to carry out a variety of functions, each of which depends on the type of sheet material used and on the surface to which the sheet material is associated.
- frame is used both to indicate a closed structure consisting of a pluraly of elongated elements connected to each other at their ends with the aim of keeping a sheet material stretched, and an open structure including at least an elongated element intended to be associated with an end of the sheet material to be stretched, the opposite end of the sheet material being connected with another elongated element or with a fastening device of a type known per se.
- a frame adapted to support and stretch an artistic canvas or similar is described in the Italian utility model application T096U000103. It comprises a prismatic-shaped base frame having a peripheral tab which is intended to be surrounded by a sheet material to be stretched.
- a counter-frame having a shape corresponding to that of the base frame is mounted telescopically so as to be slidable outside of the base frame, and has a peripheral edge for anchoring the edges of the sheet material by means of removable fastening means.
- Corresponding through openings are formed both in the base frame and in the counter-frame to allow to insert elastic wedges, acting from the inside of the base frame, for changing the position of the counter-frame with respect to the base frame, in order to adjust the tension of the sheet material.
- the frame of this document is not much fit to be used with sheet materials of large size, in which case also the base frame and the counter-frame should be very large. However, it is very difficult to assure that an effective mutual sliding may take place between a base frame and a counter-frame having very extended sides and relatively small sections. Moreover, this frame cannot be used to stretch a sheet material if the frame is fixed to a support surface, such as a wall surface, since it would require to operate from the inside of the base frame for changing the tension of the sheet material.
- the present invention relates to an elongated element according to the preamble of annexed claim 1 .
- An elongated element for a frame having the features defined above is known from the Italian utility model application T02000U000018.
- This application describes in particular a frame intended to support a stretched sheet material, such as a fabric, an artistic canvas, paper or similar.
- the frame consists of a plurality of elongated elements each of which includes a main profile and an auxiliary profile.
- Each main profile of the frame is rigidly connected to a pair of other main profiles which are arranged perpendicular at its ends.
- An auxiliary profile is hinged at the back of each main element, which is provided with a free longitudinal end having a tab for allowing an edge of the sheet material to be anchored by removable fastening means.
- a screw which can be driven by a tool in order to change its extension between the auxiliary element and the main element, is arranged on each auxiliary element for adjusting the tension of the sheet material, so as to change the angle of the auxiliary profile with respect to the main profile and therefore the distance between the auxiliary profile and the main profile.
- the main elements of the frame of this solution have however a structure which is not much fit to be fixed on a support surface, owing to the presence of the auxiliary profiles which are hinged at the back. At any rate, this structure would not allow to obtain in a simple and practical manner the adjustment of the tension of a sheet material supported by the frame when the latter is already fixed on a support surface.
- the main object of the present invention is to provide an elongated element which is particularly adapted to be used for manufacturing a frame for supporting a flexible sheet material of large size, whose elements can be easily fixed to a support surface, such as the wall surface of a room or of a building, and on which the sheet material can be arranged afterwards and stretched with the desired tension without necessarily requiring the removal of the frame from the support surface.
- the elongated element of the invention can easily be fixed to a wall surface and possibly connected with other elongated elements, also fixed to the surface of the same wall or to the surface of another wall, in order to form a frame which is able to support the sheet material and which allows to apply to it an even tension as a result of the adjustment of the position of the auxiliary elements of the elongated elements.
- a frame and a flexible sheet material stretched on it make it possible to manufacture a panel system which can be used for carrying out a variety of functions, depending on the sheet material used.
- the system can allow to protect a wall, for example a sidewall or the ceiling of a room, so as to replace the common wall coatings, if a sheet material is used having resistance properties such as to allow this protecting function to be carried out.
- the system can also be employed mainly for decorative purposes by using a sheet material already decorated, for example printed, or adapted to be decorated after the installation, such as with the realization of a pictorial work on it. If a material sheet adapted to constitute a screen for projecting lights or images is used, the panel system allows to manufacture a projection screen, for example of the motion picture type.
- a panel system comprising a single frame or a pair of frames arranged side-by-side, each with the respective sheet material, allows to form a partition wall which can be used to separate to each other two zones of a room.
- the sheet material is associated to a surface, it can be, besides the surface of a wall, the surface of a piece of furniture such as the door of a cupboard or a table top. Shelves or similar for supporting objects may be manufactured by means of one or more elongated elements and the appropriate sheet material. If the sheet material is a covering fabric, it can be used for covering the outside of a piece of furniture such as an armchair and to contain the expansion of the padding interposed between the sheet material and a support portion.
- the elongated elements forming the frame can be arranged so as to follow accurately the perimeter of the surface of a wall, allowing to by-pass possible openings in it, such as doors or windows, or allowing to make accessible systems or accessories associated with the wall, such as sockets or switches.
- elongated elements shaped correspondingly to the wall may be used, for example having a curvilinear shape.
- curvilinear elongated elements may be used in order to shield or differently shape a flat wall.
- the panel system hides from view a wall, the surface of the wall can be left in the coarse condition. Therefore, possible defects or fittings mounted to the wall, such as protruding pipes, external conduits or air inlets, remain hidden.
- the flexible sheet material can be easily removed from the frame for maintenance reasons, such as to be washed, or when one desires to replace it.
- the costs and inconveniences involved by its removal are of course well smaller than those required by the removal of traditional wall coatings, for example made by wallpaper, wood or tiles.
- the elongated element of the invention can be used, as an alternative, for manufacturing a frame of a traditional type, that is intended to be hung on a surface after having mounted on it the respective flexible sheet material and after having brought it in the desired stretch condition.
- the main profile is provided with guide means for guiding the auxiliary profile according to a movement of translation with respect to the main profile, as a result of the driving of said position control means, the guide means being adapted to prevent the separation of the auxiliary profile from the main profile.
- FIG. 1 is a schematic sectional elevational view of an elongated element according to a first embodiment of the invention, which is fixed on a support surface, in the condition preceding the assembly of a sheet material on it,
- FIG. 2 is a view similar to FIG. 1 , showing the same elongated element fully assembled
- FIG. 3 is a schematic view similar to FIGS. 1 and 2 , showing two sectioned elongated elements which are part of a frame according to the invention, which is adapted to be hung on a support surface after having arranged on it a sheet material and having stretched it to the desired tension, the elongated element on the left portion of the figure being in the condition preceding the assembly of the sheet material, while the elongated element on the right portion of the figure is in the condition corresponding to the complete assembly,
- FIG. 4 is a perspective partially exploded view showing an end of the elongated element of FIG. 3 together with a rectilinear connection element which can be inserted in a cavity of the elongated element in order to allow the coaxial connection of two elongated elements,
- FIG. 5 is a view similar to FIG. 4 , showing an elongated element with an end cut at 45° and a connection element with an angle at 90° a branch of which can be inserted in a cavity of the elongated element to allow to connect it perpendicularly with another elongated element,
- FIG. 6 is an overall schematic view showing a plurality of elongated and connection elements in the exploded condition, which are intended to form a frame according to the invention
- FIG. 7 is a view similar to FIG. 1 , of an elongated element according to a second embodiment of the invention.
- FIG. 8 is a view similar to FIG. 1 , of an elongated element according to a third embodiment of the invention.
- FIG. 9 is a view similar to FIG. 1 , of an elongated element according to a fourth embodiment of the invention.
- FIG. 10 is a schematic sectioned elevational view of an elongated element according to a fifth embodiment of the invention.
- an elongated element according to a first embodiment of the invention is indicated 10 as a whole.
- Each element 10 comprises a main profile 10 a which includes a beam portion 12 having preferably an axial cavity 12 a, and from which an elongated laminar appendage 14 extends, which is provided with a free winding end 16 having a rounded shape.
- the profile 10 a is advantageously made in a single piece of plastic or composite material, or of a metal such as aluminium, preferably obtained as a result of an extrusion forming process.
- the beam portion 12 has a polygonal section, for example rectangular, the appendage 14 being the prolongation of one of the sides of the portion 12 .
- This connection portion may have whatever shape depending on the specific connection requirement, and it may consist of any portion of the profile 10 a.
- the connection portion has the shape of a rib 18 extending cantilevered from the portion 12 at the opposite portion of the appendage 14 , and it will be dealt in a greater detail in the following.
- a substantially L-shaped auxiliary profile 20 a mounted so as to be able to be subject to a movement of translation with respect to the main profile 10 a, is associated to each main profile 10 a.
- the profile 20 a has a primary branch 22 parallel to the elongated appendage 14 of the main profile 10 a, and a secondary branch 24 perpendicular to the primary branch 22 .
- the secondary branch 24 is slidably received in an elongated cavity 36 defined by a hook formation 38 which extends from the beam portion 12 towards the elongated appendage 14 .
- the beam portion 12 is provided with a recess 40 facing the side opposite to the elongated appendage 14 , which is preferably constituted by a cavity defined by the same hook formation 38 .
- the recess 40 can be snap engaged by a coupling edge 42 having a slanted insertion end, which is part of a framing profile 44 and which can be coupled removably with the main profile 10 a.
- the framing profile 44 has an edge 46 bent at its portion opposite to the coupling edge 42 , intended to be arranged in a position close to the winding end 16 of the elongated appendage 14 , when the framing profile 44 is coupled with the main profile 10 a.
- the movement of the profile 20 a with respect to the profile 10 a can be controlled by position control means including a plurality of screw members 34 each of which comprises a threaded stem engaged in a corresponding threaded hole formed in the primary branch 22 .
- the threaded stem of the screws 34 has a free end abutting against the appendage 14 , and the other end provided with a control formation 34 a, such as an hexagonal head, which can be engaged by a corresponding driving tool T (see FIG. 1 ) to cause rotation of the respective screw 34 about its axis, so that the distance between the appendage 14 and the branch 22 of the profile 20 a may be changed.
- the primary branch 22 of the auxiliary profile 20 a is provided with a bent rim 26 for anchoring an edge of a flexible sheet material S by means of one or more removable clip elements 30 .
- the elements 30 are preferably sections of a channel-shaped profile, which are adapted to be snap coupled on the rim 26 with the interposition of an edge portion of the material S.
- An elongated element 10 of the type described above can be associated with other elongated elements 10 in order to form a frame with a closed structure, usually of a polygonal shape, with the purpose to support the sheet material S which can be an artistic canvas, a sheet of paper or plastic material or similar, and to allow to apply the desired tension to the material S.
- the sheet material S can be an artistic canvas, a sheet of paper or plastic material or similar, and to allow to apply the desired tension to the material S.
- connection elements 50 a, 50 b (see FIGS. 4 to 6 ) having a cross sectional shape corresponding to that of the cavity 12 a, inserted at the opposite ends of each main profile 10 a.
- the connection elements 50 a are rectilinear and allow to join coaxially two elongated elements 10
- the connection elements 50 b are angled, for example at 90°, so that they can be used for connecting at an angle two elongated elements 10 , preferably after having cut in a corresponding manner, such as according to an angle of 45° in the case of connection of the elongated elements 10 at 90°, the ends of two main profiles 10 a to be joined.
- the connection elements can have a curvilinear shape in order to allow the mutual connection of curvilinear elements or the connection of curvilinear elements with rectilinear elements.
- each connection element 50 a, 50 b can be provided with transversal through holes 48 for inserting fixing screws 19 a , the holes 48 of the angled connection elements 50 b being formed according to pairs of holes transversal to each other at each end of the elements 50 b, in such a manner that they can be used for connecting the profiles 10 a according two different conditions, one of which is illustrated in FIGS. 1 to 6 , while the other involves an arrangement of the appendage 14 of the profiles 10 a perpendicular to the material S.
- the holes 48 may be made by a user, for example using a drill, on connection of the profiles 10 a .
- the screws 19 a cross also holes 13 formed in opposite sides of the beam portion 12 of the main profile 10 a , at a pair of grooves 13 a formed on opposite sides of the beam portion 12 .
- Each screw 19 a is then tightened using a nut 19 b, and both the head of the screw 19 a and the nut 19 b are received in the grooves 13 a of the portion 12 , so that they do not protrude outside of the beam portion 12 .
- the frame made by means of a plurality of elongated elements 10 of the type described above, is particularly adapted to support a sheet material of large size and is intended to be fixed to a support surface, such as the surface of a wall W, for example of a building, or a room.
- a support surface such as the surface of a wall W, for example of a building, or a room.
- the profile 10 a is arranged on the surface of the wall W so that the rib 18 rests on it, and therefore the rib may be used to fix the profile 10 a to the wall W by means of a series of screws 21 (possibly provided with respective screw anchors, not shown).
- magnetic fixing members which consist for example of small bar-shaped permanent magnets (not illustrated in the figures), can be used as an alternative to the screws 21 , which members can be fixed to the side of the profile 10 a intended to face the wall W.
- the magnetic fixing members can be received in respective hollow seats of the profile 10 a which are less deep than such members, in order that they can slightly project from the surface of the profile 10 a facing the wall W so as to obtain the separation from the wall W of the magnetic fixing members associated to the opposite element 10 , as a result of a pressure applied by a user on the outside edge of one of the elongated elements 10 of the frame, as a consequence of a lever effect, which makes easier the operation of separation of the frame from the wall W.
- the sheet material S to be supported is superimposed to the frame by resting it on the winding ends 16 of the profiles 10 a , so that it assumes a configuration almost parallel to the surface of the wall W.
- a portion of the material S close to its edges is bent so that it surrounds the winding ends 16 of the respective profiles 10 a , and it can be anchored on the bent rim 26 of the auxiliary profiles 20 a by means of the clip elements 30 .
- control formations 34 a of the screws 34 are arranged in a position which can be easily reached from the outside of the frame when the main profiles 10 a thereof are fixed on the rest surface of the wall W and the material S is anchored to the auxiliary profiles 20 a.
- a respective framing profile 44 can be applied to each of the main profiles 10 a , by applying a pressure to the profile 44 so as to push it until the snap engagement of its end 42 in the recess 40 of the main profile 10 a is achieved.
- the edge 46 of the profile 44 assumes a position close or resting on the material S which surrounds the winding end 16 of the respective main profile 10 a.
- a plurality of profiles 10 a can be used in order to realize a frame adapted to support a sheet material S extending in a plane perpendicular to the surface of the walls W to which the profiles 10 a are fixed.
- the profiles 10 a of this frame are connected to the wall W in the same manner represented in FIGS. 1 and 2 , while the material S is directed perpendicular with respect to the direction illustrated in these figures, that is perpendicular to the appendage 14 of the profiles 10 a.
- the rib 18 may extend from the beam 12 perpendicularly to the appendage 14 , for example like a prolongation of the side of the beam 12 opposite to that having the hook formation 38 , so that the connection of the main profile 10 a to a wall parallel to the material S, and therefore perpendicular to the wall W of FIGS. 1 and 2 , is allowed. If, in this context, a framing profile coupled to the profiles 10 a is used, it will be only similar to the framing profile 44 , being not provided with the bent edge 46 .
- the frame can be stiffened by using reinforcing crosspieces 17 (see FIGS. 3 to 5 ) which are fixed to the rib 18 of the main profiles 10 a by means of screws 21 , for example of the self-tapping type, or the magnetic fixing members mentioned above, in the case in which the wall W is a metallic one.
- crosspieces 17 are intended to cross to each other, they could be made by a series of joint elements including cross connections for the intersection zones, or by means of rectilinear elements overlapping at the intersection zones (not shown in the figures, being of a type known per se).
- Bolts can be used to fix the ends of the crosspieces 17 to the rib 18 of the respective profiles 10 a , as an alternative to the common screws 21 .
- the rib 18 preferably has a longitudinal groove (not shown) constituting a receiving seat for the head of the screw or for the nut of such bolts. Similar bolts can be used to fix the crosspieces 17 at the overlapping intersection or prolongation zones.
- the formations 34 can be provided with radial fins, indicated 34 b in FIG. 4 , in order to facilitate their manual driving.
- FIG. 7 shows another embodiment of the invention.
- the main profile 10 a of this embodiment has a simplified structure in which the beam portion 12 is solid and has a laminar or substantially I-shaped cross-section. Holes intended to be engaged by the screws 21 are formed on the rib 18 , and a longitudinal groove 13 a is formed on the face opposite to the portion 12 .
- the groove 13 a allows to receive the heads of the screws of bolts which can be used for connecting adjacent sections of the profiles 10 a to the respective ends by means of rectilinear or angled connection elements (not shown in FIG. 7 ), in a manner similar to that described with reference to the previous embodiment.
- the bent rim 26 of the auxiliary profile 20 a may have a check lip 26 a, in order to facilitate the coupling of the material S by means of the clip elements 30 .
- the rib 18 extends from the side opposite to the beam portion 12 in order to form a projection from which extends, parallel to the portion 12 , the hook formation 38 which defines the cavity 36 .
- a mortise 40 having a trapezoid cross-section is formed, in order to allow the front engagement of a tenon 42 extending from an end of a framing profile 44 which has a L-shaped cross-section.
- the tenon 42 has two elastic tabs arranged according to a V, which are intended to snap engage the mortise 40 as a result of a force applied from the outside on the framing profile 44 .
- FIG. 8 shows another embodiment of an elongated element according to the invention.
- the same numeral references of FIGS. 1 to 7 have been used in order to indicate elements equal or similar to those of such figures.
- the aspects of this embodiment will be considered which are different to those already described with reference to the previous embodiments.
- the main profile 10 a of this embodiment has a simplified structure in which the beam portion 12 is solid and has a laminar cross-section.
- one part of the portion 12 constitutes the connection portion of the profile 10 a to a wall W, a plurality of holes being formed in it for inserting the respective screws 21 in order to fix the profile 10 a to the wall W, or being formed in it seats for receiving the magnetic fixing members mentioned in the previous embodiment, in the case in which the wall W is metallic.
- the means for controlling the position of the auxiliary profile 20 a with respect to the main profile 10 a comprise a plurality of screws 34 whose threaded stem crosses the branch 22 of the auxiliary profile 20 a and whose free end is received in a groove 35 formed on the face of the appendage 14 facing the profile 20 a .
- the thread of each screw 35 engages the thread of a respective nut 35 b, for example a square nut, connected to the branch 22 of the profile 20 a by a pair of opposite clip appendages 35 a, which are formed integrally with the profile 20 a.
- each screw 34 preferably has a disc-shaped base portion 33 which makes easier to keep in position a control wrench (not shown in FIG. 8 ), during the driving of the screws 34 .
- the bent rim 26 of the auxiliary profile 20 a is provided with an enlarged head 26 b having a pair of opposite sharp-edge formations intended to snap engage corresponding engagement formations of the respective clip element 30 .
- the element 30 is provided with a seizing tongue 30 a which can be seized to apply an elastic deformation to the element 30 , so as to allow to free from it the sharp-edge formations of the head 26 b.
- the length of the secondary branch 24 of the auxiliary profile 20 a is substantially the same of the distance of the free end of the hook formation 38 from the appendage 14 .
- the auxiliary profile 20 a can be inserted inside the main profile 10 a when the latter has already been fixed to the wall W, by a movement thereof in a direction perpendicular to the wall W.
- the branch 24 of the profile 20 a rests on the beam portion 12 , it is sufficient a small moving away of the profile 20 a with respect to the appendage 14 , which is obtained by driving the screws 34 , to bring the secondary branch 24 into engagement with the elongate cavity 36 of the profile 10 a .
- the auxiliary profile 20 a is effectively connected to the main profile 10 a and it does not tend to be separated from the beam portion 12 of the main profile 10 a not even when it undergoes a high force of traction following to the application of the tension on the sheet material S.
- the main profile 10 a of this embodiment comprises also a plate portion 39 extending transverse to the hook formation 38 and parallel to the appendage 14 .
- FIG. 9 shows another embodiment of an elongated element according to the invention, which has a further simplified structure.
- the references already used in FIGS. 1 to 8 have been used to indicate elements equal or similar to such figures, and mainly the aspects different from what has been already described with reference to the previous embodiments will be taken in consideration in the relevant description.
- the main profile of this embodiment, indicated 10 b, has a fork shape with two branches of different length, which extend from a solid beam portion 12 .
- the branch having the greater extension of the two, is intended to be arranged so as to rest on the surface of a support wall W, while the other one, indicated by the reference numeral 38 , consists of the hook formation which defines the elongated cavity 36 .
- the beam portion 12 carries out also the function of a portion for connecting the profile 10 b and, for this purpose, through holes are formed in it to allow the engagement of a plurality of screws 21 (only one of which can be seen in the figure) to connect the profile 10 b to the wall W.
- seats for receiving the magnetic fixing members mentioned in the previous embodiments may be formed in the portion 12 .
- the auxiliary profile 20 b associated to the profile 10 b has a L-shaped cross-section comprising a primary branch 22 and a secondary branch 24 , perpendicular to each other.
- the branch 24 has a length substantially equal to that of the formation 38 and its cross-section corresponds to that of the cavity 36 so that it can be inserted into the cavity 36 .
- a small play between the cavity 36 and the branch 24 allows the latter to slide along the cavity 36 .
- a winding appendage 16 for the material S and an enlarged head 26 b are formed at the end of the primary branch 22 opposite to the branch 24 .
- the enlarged head 26 b has a pair of sharp-edges intended to be snap engaged at opposite sides of a corresponding seat of a clip element 30 as a result of a pressure action applied on the element 30 , in the direction of the arrow A of such a figure.
- the clip element 30 is provided with a seizing tongue 30 a.
- the position of the auxiliary profile 20 b with respect to the main profile 10 b can be controlled by means of a plurality of screws 34 each of which has a head 34 a to be controlled by a tool of corresponding shape.
- the threaded stem of each screw 34 crosses the branch 22 in such a manner that its free end, opposite to the head 34 a, can abut on the respective end face of the hook formation 38 .
- the profile 10 b preferably has an enlarged head protrusion 42 , at the end of its branch of greater extension, intended to be snap engaged, as a result of the application of a force directed according to arrow B of the figure, in a recess 40 of a framing profile 44 having a L-shaped cross-section, by virtue of the elastic deformation of a pair of parallel legs 41 which define the recess 40 .
- the portion 12 can be provided with a pair of small parallel appendages of equal extension and hook-shaped (not shown), for example on the face opposite to the cavity 36 , which define a seat for receiving connection elements of the main profile 10 b, which have a cross-section corresponding to that of such a seat.
- rectilinear or curvilinear connection elements can be used to allow a front connection of rectilinear or curvilinear sections of the profile 10 b, or angled connection elements in order to connect sections of the profile 10 b at an angle, according to a line tilted with respect to the general axis of the profile.
- FIG. 10 in which the same references have been used in order to indicate elements equal or similar to those of the previous embodiments, shows an elongated element 10 according to a further embodiment of the invention.
- Each elongated element 10 of this embodiment comprises a main profile 10 c and an auxiliary profile 20 c associated to each other.
- the main profile 10 c has a beam portion 12 whose cross-section has a substantially opposite C-shape (with reference to the figure) and comprises a pair of parallel ribs 18 both crossed by coaxial holes 18 a.
- An intermediate portion 19 of the portion 12 extends between the two ribs 18 .
- the portion 19 is crossed by holes 18 b (only one of which can be seen in FIG. 10 ), which are perpendicular to the holes 18 a and open in a recess 18 c.
- a screw 21 can be inserted in each pair of coaxial holes 18 a of the ribs 18 in order to connect a reinforcing crosspiece 17 to the profile 10 c, with the purpose of stiffening the frame if it has to be arranged on a wall subsequently to the stretching of the material S.
- the screw 21 engages also a transverse end hole 17 a of the reinforcing crosspiece 17 , when the corresponding end of the crosspiece 17 is inserted in the recess 18 c.
- a screw 21 long enough to project outside from the portion 12 can be used for each pair of coaxial holes 18 a, so as to allow to fix the profile 10 c to the surface of a support wall transverse to the screw 21 (not shown).
- the two ribs 18 carry out the function of a shelf connection portion.
- the magnetic fixing members mentioned in the previous embodiments can be inserted in the holes 18 a, or in an enlarged end portions thereof (not shown).
- the ribs 18 are used like support legs of the beam portion 12 , and such a portion is fixed to the wall by screws 12 which are inserted in the holes 18 b, or by means of magnetic fixing members received in seats formed at the holes 18 b or the ribs 18 .
- the elongated appendage 14 provided with the rounded winding end 16 , extends cantilevered sideways from the beam portion 12 .
- An undercut groove 15 is formed in the appendage 14 , which opens on the side of the portion 12 with a narrow groove 15 a.
- the groove 15 is adapted to rotatably receive the enlarged head 34 c of the screws 34 , so that the threaded stem of the screws 34 projects from the appendage 14 through the groove 15 a.
- the auxiliary profile 20 c associated to the profile 10 c has a main laminar branch 22 provided with a bent rim 26 at an end thereof, which is in its turn provided with an enlarged head 26 b with opposite sharp-edge formations, in order to allow to fasten to it an edge of the flexible sheet material S by means of clip elements 30 .
- each screw 34 engages a corresponding threaded hole formed in the main branch 22 of the auxiliary profile 20 c and has, at the opposite end of the respective head 34 c, a prismatic formation 34 d, for example having a square section, which is intended to engage a corresponding prismatic cavity of a body 34 e, preferably provided with radial fins.
- a prismatic formation 34 d for example having a square section, which is intended to engage a corresponding prismatic cavity of a body 34 e, preferably provided with radial fins.
- the tension applied to the material S is therefore changed as a result of the manual drive of the control formation 34 e.
- the control formations 34 e can be easily reached from the outside of the main profiles 10 c, the desired tension can be applied to the material S in a simple and practical manner also when the profiles are fixed to the surface of respective support walls and the material S is anchored to the auxiliary profiles 20 c.
- the beam portion 12 on the side opposite to the appendage 14 , is provided with a projection 42 having an enlarged head which can be snap engaged in a recess 40 defined by a pair of elastically flexible legs 41 , which are formed integrally at an end of a substantially L-shaped framing profile 44 having an edge bent on the side opposite to the recess 40 .
- the profile 44 may be coupled to the main profile 10 c as a result of the application of a force, once the adjusting operation of the tension of the material S has been accomplished. It can be disassembled from the profile 10 c if it is desired to remove the material S or in the case in which its tension has to be adjusted again.
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Abstract
An elongated element for the frame of a panel system comprising a flexible sheet material includes a main profile to which an auxiliary profile is associated. The auxiliary profile is provided with means for anchoring an edge of the sheet material and it can be moved with respect to the main profile as a result of the driving of position control screws. The main profile is adapted to be fixed on the surface of a wall by connection means engaging a connection portion associated to it. The position control screws have a control formation which can be reached from the outside of the frame, when the main profile of the elongated element is fixed to a wall and the sheet material is anchored to the auxiliary profile.
Description
- The present invention refers in general to frames which can be used for supporting and stretching a flexible sheet material, for the purpose of manufacturing a panel system which can be used to carry out a variety of functions, each of which depends on the type of sheet material used and on the surface to which the sheet material is associated.
- In the following description, the term frame is used both to indicate a closed structure consisting of a pluraly of elongated elements connected to each other at their ends with the aim of keeping a sheet material stretched, and an open structure including at least an elongated element intended to be associated with an end of the sheet material to be stretched, the opposite end of the sheet material being connected with another elongated element or with a fastening device of a type known per se.
- A frame adapted to support and stretch an artistic canvas or similar, is described in the Italian utility model application T096U000103. It comprises a prismatic-shaped base frame having a peripheral tab which is intended to be surrounded by a sheet material to be stretched. A counter-frame having a shape corresponding to that of the base frame is mounted telescopically so as to be slidable outside of the base frame, and has a peripheral edge for anchoring the edges of the sheet material by means of removable fastening means. Corresponding through openings are formed both in the base frame and in the counter-frame to allow to insert elastic wedges, acting from the inside of the base frame, for changing the position of the counter-frame with respect to the base frame, in order to adjust the tension of the sheet material.
- The frame of this document is not much fit to be used with sheet materials of large size, in which case also the base frame and the counter-frame should be very large. However, it is very difficult to assure that an effective mutual sliding may take place between a base frame and a counter-frame having very extended sides and relatively small sections. Moreover, this frame cannot be used to stretch a sheet material if the frame is fixed to a support surface, such as a wall surface, since it would require to operate from the inside of the base frame for changing the tension of the sheet material.
- More specifically, the present invention relates to an elongated element according to the preamble of annexed claim 1.
- An elongated element for a frame having the features defined above, is known from the Italian utility model application T02000U000018. This application describes in particular a frame intended to support a stretched sheet material, such as a fabric, an artistic canvas, paper or similar. The frame consists of a plurality of elongated elements each of which includes a main profile and an auxiliary profile. Each main profile of the frame is rigidly connected to a pair of other main profiles which are arranged perpendicular at its ends. An auxiliary profile is hinged at the back of each main element, which is provided with a free longitudinal end having a tab for allowing an edge of the sheet material to be anchored by removable fastening means. A screw, which can be driven by a tool in order to change its extension between the auxiliary element and the main element, is arranged on each auxiliary element for adjusting the tension of the sheet material, so as to change the angle of the auxiliary profile with respect to the main profile and therefore the distance between the auxiliary profile and the main profile.
- The main elements of the frame of this solution have however a structure which is not much fit to be fixed on a support surface, owing to the presence of the auxiliary profiles which are hinged at the back. At any rate, this structure would not allow to obtain in a simple and practical manner the adjustment of the tension of a sheet material supported by the frame when the latter is already fixed on a support surface.
- The main object of the present invention is to provide an elongated element which is particularly adapted to be used for manufacturing a frame for supporting a flexible sheet material of large size, whose elements can be easily fixed to a support surface, such as the wall surface of a room or of a building, and on which the sheet material can be arranged afterwards and stretched with the desired tension without necessarily requiring the removal of the frame from the support surface.
- This object is reached by an elongated element having the features mentioned in annexed claim 1.
- By virtue of these features, the elongated element of the invention can easily be fixed to a wall surface and possibly connected with other elongated elements, also fixed to the surface of the same wall or to the surface of another wall, in order to form a frame which is able to support the sheet material and which allows to apply to it an even tension as a result of the adjustment of the position of the auxiliary elements of the elongated elements.
- In particular, such a frame and a flexible sheet material stretched on it make it possible to manufacture a panel system which can be used for carrying out a variety of functions, depending on the sheet material used. The system can allow to protect a wall, for example a sidewall or the ceiling of a room, so as to replace the common wall coatings, if a sheet material is used having resistance properties such as to allow this protecting function to be carried out. The system can also be employed mainly for decorative purposes by using a sheet material already decorated, for example printed, or adapted to be decorated after the installation, such as with the realization of a pictorial work on it. If a material sheet adapted to constitute a screen for projecting lights or images is used, the panel system allows to manufacture a projection screen, for example of the motion picture type. A frame arranged adjacent to a wall, to which is associated a sheet material whose structure has acoustic absorption properties, allows to manufacture a sound absorbent wall. A panel system comprising a single frame or a pair of frames arranged side-by-side, each with the respective sheet material, allows to form a partition wall which can be used to separate to each other two zones of a room. When the sheet material is associated to a surface, it can be, besides the surface of a wall, the surface of a piece of furniture such as the door of a cupboard or a table top. Shelves or similar for supporting objects may be manufactured by means of one or more elongated elements and the appropriate sheet material. If the sheet material is a covering fabric, it can be used for covering the outside of a piece of furniture such as an armchair and to contain the expansion of the padding interposed between the sheet material and a support portion.
- At any rate, the elongated elements forming the frame can be arranged so as to follow accurately the perimeter of the surface of a wall, allowing to by-pass possible openings in it, such as doors or windows, or allowing to make accessible systems or accessories associated with the wall, such as sockets or switches.
- If the frame has to be fitted to a wall curved or having a variable shape, elongated elements shaped correspondingly to the wall may be used, for example having a curvilinear shape. As an alternative, curvilinear elongated elements may be used in order to shield or differently shape a flat wall.
- When the panel system hides from view a wall, the surface of the wall can be left in the coarse condition. Therefore, possible defects or fittings mounted to the wall, such as protruding pipes, external conduits or air inlets, remain hidden.
- The flexible sheet material can be easily removed from the frame for maintenance reasons, such as to be washed, or when one desires to replace it. The costs and inconveniences involved by its removal are of course well smaller than those required by the removal of traditional wall coatings, for example made by wallpaper, wood or tiles.
- The elongated element of the invention can be used, as an alternative, for manufacturing a frame of a traditional type, that is intended to be hung on a surface after having mounted on it the respective flexible sheet material and after having brought it in the desired stretch condition.
- According to an advantageous feature of the invention, the main profile is provided with guide means for guiding the auxiliary profile according to a movement of translation with respect to the main profile, as a result of the driving of said position control means, the guide means being adapted to prevent the separation of the auxiliary profile from the main profile.
- By virtue of this feature, the operation of stretching the sheet material on the frame is made easier, in particular when it is fixed on a support wall.
- Further characteristics and advantages of the invention will become more clearly evident from the reading of the detailed description which follows, given purely by way of a non limiting example and referred to the attached drawings, in which:
-
FIG. 1 is a schematic sectional elevational view of an elongated element according to a first embodiment of the invention, which is fixed on a support surface, in the condition preceding the assembly of a sheet material on it, -
FIG. 2 is a view similar toFIG. 1 , showing the same elongated element fully assembled, -
FIG. 3 is a schematic view similar toFIGS. 1 and 2 , showing two sectioned elongated elements which are part of a frame according to the invention, which is adapted to be hung on a support surface after having arranged on it a sheet material and having stretched it to the desired tension, the elongated element on the left portion of the figure being in the condition preceding the assembly of the sheet material, while the elongated element on the right portion of the figure is in the condition corresponding to the complete assembly, -
FIG. 4 is a perspective partially exploded view showing an end of the elongated element ofFIG. 3 together with a rectilinear connection element which can be inserted in a cavity of the elongated element in order to allow the coaxial connection of two elongated elements, -
FIG. 5 is a view similar toFIG. 4 , showing an elongated element with an end cut at 45° and a connection element with an angle at 90° a branch of which can be inserted in a cavity of the elongated element to allow to connect it perpendicularly with another elongated element, -
FIG. 6 is an overall schematic view showing a plurality of elongated and connection elements in the exploded condition, which are intended to form a frame according to the invention, -
FIG. 7 is a view similar toFIG. 1 , of an elongated element according to a second embodiment of the invention, -
FIG. 8 is a view similar toFIG. 1 , of an elongated element according to a third embodiment of the invention, -
FIG. 9 is a view similar toFIG. 1 , of an elongated element according to a fourth embodiment of the invention, and -
FIG. 10 is a schematic sectioned elevational view of an elongated element according to a fifth embodiment of the invention. - With initial reference to FIGS. 1 to 6, an elongated element according to a first embodiment of the invention is indicated 10 as a whole.
- Each
element 10 comprises a main profile 10 a which includes abeam portion 12 having preferably anaxial cavity 12 a, and from which anelongated laminar appendage 14 extends, which is provided with a free windingend 16 having a rounded shape. The profile 10 a is advantageously made in a single piece of plastic or composite material, or of a metal such as aluminium, preferably obtained as a result of an extrusion forming process. - Conveniently, the
beam portion 12 has a polygonal section, for example rectangular, theappendage 14 being the prolongation of one of the sides of theportion 12. A connection portion adapted to allow the profile 10 a to be fixed to a support surface, is associated to thebeam portion 12. This connection portion may have whatever shape depending on the specific connection requirement, and it may consist of any portion of the profile 10 a. Preferably, the connection portion has the shape of arib 18 extending cantilevered from theportion 12 at the opposite portion of theappendage 14, and it will be dealt in a greater detail in the following. - A substantially L-shaped
auxiliary profile 20 a, mounted so as to be able to be subject to a movement of translation with respect to the main profile 10 a, is associated to each main profile 10 a. Theprofile 20 a has aprimary branch 22 parallel to theelongated appendage 14 of the main profile 10 a, and asecondary branch 24 perpendicular to theprimary branch 22. Thesecondary branch 24 is slidably received in anelongated cavity 36 defined by ahook formation 38 which extends from thebeam portion 12 towards theelongated appendage 14. In this manner, the movement of translation of theprofile 20 a is guided as a result of the engagement of itssecondary branch 24 in thecavity 36, so that such a movement may take place without any accidental separation of theprofile 20 a from the profile 10 a, theprofile 20 a being kept in a position close to the profile 10 a. - Moreover, the
beam portion 12 is provided with arecess 40 facing the side opposite to theelongated appendage 14, which is preferably constituted by a cavity defined by thesame hook formation 38. Therecess 40 can be snap engaged by acoupling edge 42 having a slanted insertion end, which is part of a framingprofile 44 and which can be coupled removably with the main profile 10 a. The framingprofile 44 has anedge 46 bent at its portion opposite to thecoupling edge 42, intended to be arranged in a position close to the windingend 16 of theelongated appendage 14, when the framingprofile 44 is coupled with the main profile 10 a. - The movement of the
profile 20 a with respect to the profile 10 a can be controlled by position control means including a plurality ofscrew members 34 each of which comprises a threaded stem engaged in a corresponding threaded hole formed in theprimary branch 22. The threaded stem of thescrews 34 has a free end abutting against theappendage 14, and the other end provided with a control formation 34 a, such as an hexagonal head, which can be engaged by a corresponding driving tool T (seeFIG. 1 ) to cause rotation of therespective screw 34 about its axis, so that the distance between theappendage 14 and thebranch 22 of theprofile 20 a may be changed. - The
primary branch 22 of theauxiliary profile 20 a is provided with abent rim 26 for anchoring an edge of a flexible sheet material S by means of one or moreremovable clip elements 30. Theelements 30 are preferably sections of a channel-shaped profile, which are adapted to be snap coupled on therim 26 with the interposition of an edge portion of the material S. - An
elongated element 10 of the type described above can be associated with otherelongated elements 10 in order to form a frame with a closed structure, usually of a polygonal shape, with the purpose to support the sheet material S which can be an artistic canvas, a sheet of paper or plastic material or similar, and to allow to apply the desired tension to the material S. When severalelongated elements 10 have been connected, theirauxiliary profiles 20 a remain independent to each other, and their ends remain free with respect to the ends of theprofiles 20 a of the adjacentelongated elements 10. - The
elongated elements 10 which form the frame can be connected to each other usingconnection elements 50 a, 50 b (see FIGS. 4 to 6) having a cross sectional shape corresponding to that of thecavity 12 a, inserted at the opposite ends of each main profile 10 a. The connection elements 50 a are rectilinear and allow to join coaxially twoelongated elements 10, while theconnection elements 50 b are angled, for example at 90°, so that they can be used for connecting at an angle twoelongated elements 10, preferably after having cut in a corresponding manner, such as according to an angle of 45° in the case of connection of theelongated elements 10 at 90°, the ends of two main profiles 10 a to be joined. As an alternative, the connection elements can have a curvilinear shape in order to allow the mutual connection of curvilinear elements or the connection of curvilinear elements with rectilinear elements. - In order to assure a particularly effective connection between a
connection element 50 a or 50 b and the respective main profiles 10 a, eachconnection element 50 a, 50 b can be provided with transversal throughholes 48 for inserting fixing screws 19 a, theholes 48 of theangled connection elements 50 b being formed according to pairs of holes transversal to each other at each end of theelements 50 b, in such a manner that they can be used for connecting the profiles 10 a according two different conditions, one of which is illustrated in FIGS. 1 to 6, while the other involves an arrangement of theappendage 14 of the profiles 10 a perpendicular to the material S. As an alternative, theholes 48 may be made by a user, for example using a drill, on connection of the profiles 10 a. The screws 19 a cross also holes 13 formed in opposite sides of thebeam portion 12 of the main profile 10 a, at a pair of grooves 13 a formed on opposite sides of thebeam portion 12. Each screw 19 a is then tightened using anut 19 b, and both the head of the screw 19 a and thenut 19 b are received in the grooves 13 a of theportion 12, so that they do not protrude outside of thebeam portion 12. - The frame made by means of a plurality of
elongated elements 10 of the type described above, is particularly adapted to support a sheet material of large size and is intended to be fixed to a support surface, such as the surface of a wall W, for example of a building, or a room. In this case, with particular reference toFIGS. 1 and 2 , the profile 10 a is arranged on the surface of the wall W so that therib 18 rests on it, and therefore the rib may be used to fix the profile 10 a to the wall W by means of a series of screws 21 (possibly provided with respective screw anchors, not shown). If the wall W is a metallic sheet, magnetic fixing members, which consist for example of small bar-shaped permanent magnets (not illustrated in the figures), can be used as an alternative to thescrews 21, which members can be fixed to the side of the profile 10 a intended to face the wall W. In the latter case, the magnetic fixing members can be received in respective hollow seats of the profile 10 a which are less deep than such members, in order that they can slightly project from the surface of the profile 10 a facing the wall W so as to obtain the separation from the wall W of the magnetic fixing members associated to theopposite element 10, as a result of a pressure applied by a user on the outside edge of one of theelongated elements 10 of the frame, as a consequence of a lever effect, which makes easier the operation of separation of the frame from the wall W. - After having fixed the several
elongated elements 10 which constitute the whole frame, the sheet material S to be supported is superimposed to the frame by resting it on the winding ends 16 of the profiles 10 a, so that it assumes a configuration almost parallel to the surface of the wall W. A portion of the material S close to its edges is bent so that it surrounds the winding ends 16 of the respective profiles 10 a, and it can be anchored on thebent rim 26 of theauxiliary profiles 20 a by means of theclip elements 30. - Using the tool T it is possible to act on the control formations 34 a of the
screws 34 in order to apply the desired tension to the material S, in particular the appropriate tension to bring the material S in the flat configuration with respect to the frame. It can be noticed that the control formations 34 a are arranged in a position which can be easily reached from the outside of the frame when the main profiles 10 a thereof are fixed on the rest surface of the wall W and the material S is anchored to theauxiliary profiles 20 a. - When the operation of adjusting the tension of the material S has been completed, a
respective framing profile 44 can be applied to each of the main profiles 10 a, by applying a pressure to theprofile 44 so as to push it until the snap engagement of itsend 42 in therecess 40 of the main profile 10 a is achieved. In this condition, theedge 46 of theprofile 44 assumes a position close or resting on the material S which surrounds the windingend 16 of the respective main profile 10 a. - As an alternative, a plurality of profiles 10 a can be used in order to realize a frame adapted to support a sheet material S extending in a plane perpendicular to the surface of the walls W to which the profiles 10 a are fixed. In practice, the profiles 10 a of this frame are connected to the wall W in the same manner represented in
FIGS. 1 and 2 , while the material S is directed perpendicular with respect to the direction illustrated in these figures, that is perpendicular to theappendage 14 of the profiles 10 a. In this case, therib 18 may extend from thebeam 12 perpendicularly to theappendage 14, for example like a prolongation of the side of thebeam 12 opposite to that having thehook formation 38, so that the connection of the main profile 10 a to a wall parallel to the material S, and therefore perpendicular to the wall W ofFIGS. 1 and 2 , is allowed. If, in this context, a framing profile coupled to the profiles 10 a is used, it will be only similar to the framingprofile 44, being not provided with thebent edge 46. - If a plurality of main profiles 10 a are connected to each other, it is also possible to obtain a frame which can be removed from a wall W, that is intended to be hung on the wall W only after that the material S has been positioned on it and has been brought to the desired tension. If the size of the frame requires it, the frame can be stiffened by using reinforcing crosspieces 17 (see FIGS. 3 to 5) which are fixed to the
rib 18 of the main profiles 10 a by means ofscrews 21, for example of the self-tapping type, or the magnetic fixing members mentioned above, in the case in which the wall W is a metallic one. If thecrosspieces 17 are intended to cross to each other, they could be made by a series of joint elements including cross connections for the intersection zones, or by means of rectilinear elements overlapping at the intersection zones (not shown in the figures, being of a type known per se). Bolts can be used to fix the ends of thecrosspieces 17 to therib 18 of the respective profiles 10 a, as an alternative to the common screws 21. In this case, therib 18 preferably has a longitudinal groove (not shown) constituting a receiving seat for the head of the screw or for the nut of such bolts. Similar bolts can be used to fix thecrosspieces 17 at the overlapping intersection or prolongation zones. - Since with the removable frame it is possible to reach the control formations of the
screws 34 from the back of the frame when the latter is separated from the wall W, theformations 34 can be provided with radial fins, indicated 34 b inFIG. 4 , in order to facilitate their manual driving. -
FIG. 7 shows another embodiment of the invention. In this embodiment, the same numeral references of FIGS. 1 to 6 have been used to indicate elements equal or similar to those of such figures, and mainly the differences with respect to the previously described embodiment will be mentioned in the relevant description. The main profile 10 a of this embodiment has a simplified structure in which thebeam portion 12 is solid and has a laminar or substantially I-shaped cross-section. Holes intended to be engaged by thescrews 21 are formed on therib 18, and a longitudinal groove 13 a is formed on the face opposite to theportion 12. The groove 13 a allows to receive the heads of the screws of bolts which can be used for connecting adjacent sections of the profiles 10 a to the respective ends by means of rectilinear or angled connection elements (not shown inFIG. 7 ), in a manner similar to that described with reference to the previous embodiment. - The
bent rim 26 of theauxiliary profile 20 a may have a check lip 26 a, in order to facilitate the coupling of the material S by means of theclip elements 30. - The
rib 18 extends from the side opposite to thebeam portion 12 in order to form a projection from which extends, parallel to theportion 12, thehook formation 38 which defines thecavity 36. In this projection amortise 40 having a trapezoid cross-section is formed, in order to allow the front engagement of atenon 42 extending from an end of a framingprofile 44 which has a L-shaped cross-section. Thetenon 42 has two elastic tabs arranged according to a V, which are intended to snap engage themortise 40 as a result of a force applied from the outside on the framingprofile 44. -
FIG. 8 shows another embodiment of an elongated element according to the invention. In this figure, the same numeral references of FIGS. 1 to 7 have been used in order to indicate elements equal or similar to those of such figures. In the following description mainly the aspects of this embodiment will be considered which are different to those already described with reference to the previous embodiments. - Also the main profile 10 a of this embodiment has a simplified structure in which the
beam portion 12 is solid and has a laminar cross-section. In this case, one part of theportion 12 constitutes the connection portion of the profile 10 a to a wall W, a plurality of holes being formed in it for inserting therespective screws 21 in order to fix the profile 10 a to the wall W, or being formed in it seats for receiving the magnetic fixing members mentioned in the previous embodiment, in the case in which the wall W is metallic. - The means for controlling the position of the
auxiliary profile 20 a with respect to the main profile 10 a, comprise a plurality ofscrews 34 whose threaded stem crosses thebranch 22 of theauxiliary profile 20 a and whose free end is received in agroove 35 formed on the face of theappendage 14 facing theprofile 20 a. The thread of eachscrew 35 engages the thread of a respective nut 35 b, for example a square nut, connected to thebranch 22 of theprofile 20 a by a pair of opposite clip appendages 35 a, which are formed integrally with theprofile 20 a. - The head 34 a of each
screw 34 preferably has a disc-shapedbase portion 33 which makes easier to keep in position a control wrench (not shown inFIG. 8 ), during the driving of thescrews 34. - Conveniently, the
bent rim 26 of theauxiliary profile 20 a is provided with anenlarged head 26 b having a pair of opposite sharp-edge formations intended to snap engage corresponding engagement formations of therespective clip element 30. In order to make easier the removal of theelement 30 from theenlarged head 26 b, theelement 30 is provided with a seizing tongue 30 a which can be seized to apply an elastic deformation to theelement 30, so as to allow to free from it the sharp-edge formations of thehead 26 b. - Advantageously, the length of the
secondary branch 24 of theauxiliary profile 20 a is substantially the same of the distance of the free end of thehook formation 38 from theappendage 14. In this manner, theauxiliary profile 20 a can be inserted inside the main profile 10 a when the latter has already been fixed to the wall W, by a movement thereof in a direction perpendicular to the wall W. When thebranch 24 of theprofile 20 a rests on thebeam portion 12, it is sufficient a small moving away of theprofile 20 a with respect to theappendage 14, which is obtained by driving thescrews 34, to bring thesecondary branch 24 into engagement with theelongate cavity 36 of the profile 10 a. In such a condition, also by virtue of the simultaneous engagement of the ends of thescrews 34 in thegroove 35, theauxiliary profile 20 a is effectively connected to the main profile 10 a and it does not tend to be separated from thebeam portion 12 of the main profile 10 a not even when it undergoes a high force of traction following to the application of the tension on the sheet material S. - The main profile 10 a of this embodiment comprises also a
plate portion 39 extending transverse to thehook formation 38 and parallel to theappendage 14. Aprotrusion 42 having an enlarged head which can be snap engaged in arecess 40 defined by a pair of elastically legs 41 that can be opened, which are formed integrally at an end of alaminar framing profile 44, is provided at the end of theplate portion 39 opposite to thebeam portion 12. -
FIG. 9 shows another embodiment of an elongated element according to the invention, which has a further simplified structure. In this figure, the references already used in FIGS. 1 to 8 have been used to indicate elements equal or similar to such figures, and mainly the aspects different from what has been already described with reference to the previous embodiments will be taken in consideration in the relevant description. - The main profile of this embodiment, indicated 10 b, has a fork shape with two branches of different length, which extend from a
solid beam portion 12. The branch having the greater extension of the two, is intended to be arranged so as to rest on the surface of a support wall W, while the other one, indicated by thereference numeral 38, consists of the hook formation which defines theelongated cavity 36. Thebeam portion 12 carries out also the function of a portion for connecting the profile 10 b and, for this purpose, through holes are formed in it to allow the engagement of a plurality of screws 21 (only one of which can be seen in the figure) to connect the profile 10 b to the wall W. As an alternative, seats for receiving the magnetic fixing members mentioned in the previous embodiments, may be formed in theportion 12. - The auxiliary profile 20 b associated to the profile 10 b has a L-shaped cross-section comprising a
primary branch 22 and asecondary branch 24, perpendicular to each other. Thebranch 24 has a length substantially equal to that of theformation 38 and its cross-section corresponds to that of thecavity 36 so that it can be inserted into thecavity 36. A small play between thecavity 36 and thebranch 24 allows the latter to slide along thecavity 36. A windingappendage 16 for the material S and anenlarged head 26 b are formed at the end of theprimary branch 22 opposite to thebranch 24. Theenlarged head 26 b has a pair of sharp-edges intended to be snap engaged at opposite sides of a corresponding seat of aclip element 30 as a result of a pressure action applied on theelement 30, in the direction of the arrow A of such a figure. Conveniently, theclip element 30 is provided with a seizing tongue 30 a. - The position of the auxiliary profile 20 b with respect to the main profile 10 b can be controlled by means of a plurality of
screws 34 each of which has a head 34 a to be controlled by a tool of corresponding shape. The threaded stem of eachscrew 34 crosses thebranch 22 in such a manner that its free end, opposite to the head 34 a, can abut on the respective end face of thehook formation 38. - Moreover, the profile 10 b preferably has an
enlarged head protrusion 42, at the end of its branch of greater extension, intended to be snap engaged, as a result of the application of a force directed according to arrow B of the figure, in arecess 40 of a framingprofile 44 having a L-shaped cross-section, by virtue of the elastic deformation of a pair of parallel legs 41 which define therecess 40. - The
portion 12 can be provided with a pair of small parallel appendages of equal extension and hook-shaped (not shown), for example on the face opposite to thecavity 36, which define a seat for receiving connection elements of the main profile 10 b, which have a cross-section corresponding to that of such a seat. In particular, rectilinear or curvilinear connection elements can be used to allow a front connection of rectilinear or curvilinear sections of the profile 10 b, or angled connection elements in order to connect sections of the profile 10 b at an angle, according to a line tilted with respect to the general axis of the profile. -
FIG. 10 , in which the same references have been used in order to indicate elements equal or similar to those of the previous embodiments, shows anelongated element 10 according to a further embodiment of the invention. - Each
elongated element 10 of this embodiment comprises a main profile 10 c and anauxiliary profile 20 c associated to each other. - The main profile 10 c has a
beam portion 12 whose cross-section has a substantially opposite C-shape (with reference to the figure) and comprises a pair ofparallel ribs 18 both crossed by coaxial holes 18 a. Anintermediate portion 19 of theportion 12 extends between the tworibs 18. Theportion 19 is crossed byholes 18 b (only one of which can be seen inFIG. 10 ), which are perpendicular to the holes 18 a and open in a recess 18 c. - A
screw 21 can be inserted in each pair of coaxial holes 18 a of theribs 18 in order to connect a reinforcingcrosspiece 17 to the profile 10 c, with the purpose of stiffening the frame if it has to be arranged on a wall subsequently to the stretching of the material S. In this case, thescrew 21 engages also a transverse end hole 17 a of the reinforcingcrosspiece 17, when the corresponding end of thecrosspiece 17 is inserted in the recess 18 c. - As an alternative, a
screw 21 long enough to project outside from the portion 12 (possibly provided with a respective screw anchor, not shown) can be used for each pair of coaxial holes 18 a, so as to allow to fix the profile 10 c to the surface of a support wall transverse to the screw 21 (not shown). In the latter case, the tworibs 18 carry out the function of a shelf connection portion. As an alternative, the magnetic fixing members mentioned in the previous embodiments can be inserted in the holes 18 a, or in an enlarged end portions thereof (not shown). - If, instead, the profile 10 c has to be positioned on a wall so that the surface of the wall is parallel to the holes 18 a, the
ribs 18 are used like support legs of thebeam portion 12, and such a portion is fixed to the wall byscrews 12 which are inserted in theholes 18 b, or by means of magnetic fixing members received in seats formed at theholes 18 b or theribs 18. - The
elongated appendage 14 provided with the rounded windingend 16, extends cantilevered sideways from thebeam portion 12. - An undercut
groove 15 is formed in theappendage 14, which opens on the side of theportion 12 with a narrow groove 15 a. Thegroove 15 is adapted to rotatably receive theenlarged head 34 c of thescrews 34, so that the threaded stem of thescrews 34 projects from theappendage 14 through the groove 15 a. - The
auxiliary profile 20 c associated to the profile 10 c has a mainlaminar branch 22 provided with abent rim 26 at an end thereof, which is in its turn provided with anenlarged head 26 b with opposite sharp-edge formations, in order to allow to fasten to it an edge of the flexible sheet material S by means ofclip elements 30. - The stem of each screws 34 engages a corresponding threaded hole formed in the
main branch 22 of theauxiliary profile 20 c and has, at the opposite end of therespective head 34 c, aprismatic formation 34 d, for example having a square section, which is intended to engage a corresponding prismatic cavity of abody 34 e, preferably provided with radial fins. When thebody 34 e is fixed to the stem of therespective screw 34, it can be manually driven by a user in order to drive into rotation therespective screw 34, causing therefore a translation of theauxiliary profile 20 c so as to move it away or to approach it parallel to theappendage 14, depending on the direction of rotation of thescrew 34. When the sheet material S is anchored to therim 26, the tension applied to the material S is therefore changed as a result of the manual drive of thecontrol formation 34 e. By virtue of the fact that thecontrol formations 34 e can be easily reached from the outside of the main profiles 10 c, the desired tension can be applied to the material S in a simple and practical manner also when the profiles are fixed to the surface of respective support walls and the material S is anchored to theauxiliary profiles 20 c. - The
beam portion 12, on the side opposite to theappendage 14, is provided with aprojection 42 having an enlarged head which can be snap engaged in arecess 40 defined by a pair of elastically flexible legs 41, which are formed integrally at an end of a substantially L-shapedframing profile 44 having an edge bent on the side opposite to therecess 40. Theprofile 44 may be coupled to the main profile 10 c as a result of the application of a force, once the adjusting operation of the tension of the material S has been accomplished. It can be disassembled from the profile 10 c if it is desired to remove the material S or in the case in which its tension has to be adjusted again.
Claims (29)
1. An elongated element for the frame of a panel system comprising a flexible sheet material, including a main profile to which an auxiliary profile provided with means for anchoring an edge of the sheet material is associated, the auxiliary profile being mounted so as to be movable with respect to the respective main profile as a result of the driving of means for controlling its position, wherein the main profile is adapted to be fixed to a support surface, such as the surface of a wall, through connection means which engage a connection portion associated to the main profile, said position control means comprising a plurality of screw members having a control formation arranged in a position which can be reached from the outside of the frame when the main profile of the elongated element is fixed on said support surface and the sheet material is anchored to the auxiliary profile.
2. An element according to claim 1 , wherein said element is provided with guide means for guiding the auxiliary profile according to a movement of translation with respect to the main profile as a result of the driving of said screw members, the guide means being adapted to prevent the separation of the auxiliary profile from the main profile when a tension is applied to the sheet material.
3. An element according to claim 1 , wherein the main profile has a beam portion in which at least a hole intended to be engaged by a respective screw is formed, in order to allow to fix the beam portion to a support surface, such as the surface of a wall.
4. An element according to claim 1 , wherein the main profile has a beam portion in which seats for receiving magnetic fixing members are formed, in order to allow to fix said beam portion to the surface of a metallic wall.
5. An element according to claim 3 , wherein the main profile has an elongated appendage which extends from the beam portion and is provided with a winding end adapted to be slidably surrounded by a portion of the sheet material which is close to an edge thereof.
6. An element according to claim 3 , wherein the auxiliary profile has a winding end adapted to be surrouded by a portion of the sheet material close to an edge thereof.
7. An element according to claim 6 , wherein a rib which can be used to fix the main profile to a support surface by said connection means, or which can be used to fix reinforcing crosspieces of the frame, extends from said beam portion of the main profile.
8. An element according to claims 2, wherein the auxiliary profile has means for anchoring an edge of the sheet material through at least a removable clip element.
9. An element according to claim 8 , wherein said anchorage means include a bent rim extending from the auxiliary profile.
10. An element according to claim 9 , wherein the anchorage means comprise an enlarged head provided with opposite sharp-edge formations intended to be snap engaged by corresponding formations of said clip element.
11. An element according to claim 10 , wherein the clip element is provided with a seizing lip in order to make easier the manual grasping thereof.
12. An element according to claim 11 , wherein the auxiliary profile is substantially L-shaped so that it has a primary branch and a secondary branch generally perpendicular to each other.
13. An element according to claim 12 , wherein the main profile has a hook formation defining an elongated cavity intended to slidably receive the secondary branch of the auxiliary profile, so that the auxiliary profile is kept in a condition generally close to the main profile owing to the engagement of its secondary branch in said cavity.
14. An element according to claim 13 , wherein said cavity extends transversely to the elongated appendage, and the extension of the secondary branch of the auxiliary profile is substantially equal to the distance between the free end of the hook formation and the elongated appendage, so that the connection of the auxiliary profile to the main profile and holding the coupled position are made easier when the main profile is fixed to a support wall.
15. An element according to claim 14 , wherein each of said screw members has a control formation and a threaded stem which engages a corresponding threaded hole formed in the auxiliary profile, whereby the distance between the auxiliary profile and the respective main profile can be adjusted as a result of the rotation of said screw members about their axis, in order to change the tension of the sheet material supported by the frame.
16. An element according to claim 15 , wherein the thread of the stem of said screw members engages the thread of a respective nut disengageably associated to the auxiliary profile.
17. An element according to claim 15 , wherein a groove is formed on the face of the elongated appendage facing the auxiliary profile, for receiving a portion of the free end of the stem of said screw members.
18. An element according to claim 5 , wherein each of said screw members has a threaded stem crossing the auxiliary profile and provided at an end with an enlarged head adapted to be received, freely rotatably, in an undercut groove formed in said elongated appendage of the main profile, whereby the distance between the auxiliary profile and the respective main profile can be adjusted as a result of the rotation of said screw members about their axis, in order to change the tension of the sheet material supported by the frame.
19. An element according to claim 18 , wherein each of the screw members has a control formation which can be fixed to the end of the threaded stem opposite to said enlarged head.
20. An element according to claim 19 , wherein the control formation of the screw members is a body which can be fixed to an end of the threaded stem of the screw member by means of the engagement of a prismatic formation extending from such a stem, in a corresponding cavity of such a body.
21. An element according to claim 20 , wherein the control formation of the screw members is provided with radial fins in order to make easier the manual driving thereof by a user.
22. An element according to claim 20 , wherein the control formation of the screw members can be driven by a driving tool, and in that such a control formation has a disc-shaped base portion for helping to keep said driving tool in its own position when such screw members are driven.
23. An element according to claim 1 , wherein a framing profile can be associated to the main profile, which can be snap fixed to the main profile as a result of the engagement of fastening means of the main profile or of the framing profile, in a recess of the framing profile or of the main profile, respectively.
24. An element according to claim 23 , wherein said recess is a cavity defined close to the hook formation and facing the side opposite to the elongated appendage.
25. An element according to claim 1 , wherein the main profile has, at its axial ends, seats for receiving rectilinear, angled, or curvilinear connection elements, which have a cross-section corresponding to that of said seat.
26. An element according to claim 25 , wherein said receiving seats are defined by an axial cavity of the beam portion of the main profile.
27. An element according to claims 3, wherein the beam portion of the main profile has engagement formations for allowing to receive the heads of screws for fixing said connection elements.
28. A frame for a panel system comprising a flexible sheet material, including a plurality of elongated elements according to claim 1 .
29. A frame according to claim 28 , wherein the beam portions of the main profiles of the elongated elements are hollow and have a polygonal section, and in that rectilinear, angled or curvilinear connection elements are inserted in the cavity of the main profiles, such connection elements having a polygonal cross-section corresponding to that of the cavity of the main profiles and being fixed at the ends of the main profiles by screw fixing elements such as bolts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/034,280 US7810545B2 (en) | 2003-10-16 | 2008-02-20 | Elongated element for the frame of a panel system comprising a flexible sheet material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO2003A000812 | 2003-10-16 | ||
IT000812A ITTO20030812A1 (en) | 2003-10-16 | 2003-10-16 | STRETCHED ELEMENT OF A FRAME FOR A PANEL SYSTEM INCLUDING A FLEXIBLE SHEET MATERIAL. |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/034,280 Division US7810545B2 (en) | 2003-10-16 | 2008-02-20 | Elongated element for the frame of a panel system comprising a flexible sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050139334A1 true US20050139334A1 (en) | 2005-06-30 |
Family
ID=34430809
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/964,763 Abandoned US20050139334A1 (en) | 2003-10-16 | 2004-10-15 | Elongated element for the frame of a panel system comprising a flexible sheet material |
US12/034,280 Expired - Fee Related US7810545B2 (en) | 2003-10-16 | 2008-02-20 | Elongated element for the frame of a panel system comprising a flexible sheet material |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/034,280 Expired - Fee Related US7810545B2 (en) | 2003-10-16 | 2008-02-20 | Elongated element for the frame of a panel system comprising a flexible sheet material |
Country Status (4)
Country | Link |
---|---|
US (2) | US20050139334A1 (en) |
JP (1) | JP2005163528A (en) |
CA (1) | CA2484907A1 (en) |
IT (1) | ITTO20030812A1 (en) |
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US7740048B2 (en) * | 2007-06-06 | 2010-06-22 | Wilson Eric P | Screen frame and assembly |
US20080302490A1 (en) * | 2007-06-06 | 2008-12-11 | Wilson Eric P | Screen frame and assembly |
AU2009204676B2 (en) * | 2008-01-15 | 2011-06-16 | Mark John Milligan | A security screen frame |
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FR2934284A1 (en) * | 2008-07-22 | 2010-01-29 | Newmat | PROFILE BENDING MEANS FOR EMPTY FRAME |
WO2010010249A2 (en) * | 2008-07-22 | 2010-01-28 | Newmat | Profile bowing means for a sinking surround |
US20110203210A1 (en) * | 2008-07-22 | 2011-08-25 | Newmat | Profile-bending means for frame to be pocketed |
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US20100270104A1 (en) * | 2009-03-20 | 2010-10-28 | Atzert Robert J | Shapeable framing system |
EP2248960A1 (en) * | 2009-05-04 | 2010-11-10 | Iaso, S.A. | A device for tensioning an element, for instance a plastic sheet or a textile material, a panel with such a device and an assembly method |
EP2434066A1 (en) * | 2010-09-23 | 2012-03-28 | HJE Systembau Eickhoff Gmbh & Co.kg | Profile for producing an acoustic sound absorption element for walls and ceilings and acoustic sound absorption element for walls and ceilings with the profile |
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US8534014B2 (en) | 2010-12-29 | 2013-09-17 | Usg Interiors, Llc | Magnetic cross tees |
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JP2017014787A (en) * | 2015-06-30 | 2017-01-19 | セイキ販売株式会社 | Screen device |
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EP3505697A1 (en) * | 2017-12-29 | 2019-07-03 | Koch Membranen GmbH Kunststofftechnologie | Wall, ceiling raft |
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WO2020008146A3 (en) * | 2018-07-03 | 2020-03-19 | Scherrer Jean Marc | Hanging system for a stretch false ceiling, permitting the passage of air |
US11326395B2 (en) | 2019-04-03 | 2022-05-10 | Michael Heissenberg | Retractable screen with horizontal tensioning track and vertical biasing member |
Also Published As
Publication number | Publication date |
---|---|
CA2484907A1 (en) | 2005-04-16 |
JP2005163528A (en) | 2005-06-23 |
ITTO20030812A1 (en) | 2005-04-17 |
US20080136079A1 (en) | 2008-06-12 |
US7810545B2 (en) | 2010-10-12 |
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