DE102021112371A1 - Support frame for a shelf - Google Patents

Abstract

The invention relates to a supporting frame (10) for a shelf (100), with a profiled strip (12) running partially or completely around an inner area (14) of the frame, into which a base plate (102) can be inserted, the profiled strip (12) being on the inner side (24) of the frame facing the inner area (14) of the frame has a spring area (38) which comprises a contact section (42), the contact section (42) of the spring area (38) being set up when the base plate (102) is inserted into the profile strip (12) to be pushed away from the base plate (102) and thereby release an insertion path for the base plate (102) in the direction of a receiving area (44), wherein the spring area (38) is set up to positively and/or non-positively fix the Base plate (102) on the frame inside (24) of the profile strip (12) to perform a restoring movement as soon as the base plate (102) has reached the receiving area (44).

Description

The invention relates to a support frame for a shelf with a profile strip that runs partially or completely around an inner area of the frame, into which a base plate can be inserted, the profile strip having a spring area on the inner side of the frame facing the inner area of the frame, which comprises a contact section, the contact section of the spring area being connected thereto is set up to be pushed away from the base plate when the base plate is inserted into the profile strip and thereby release an insertion path for the base plate in the direction of a receiving area, with the springing area being set up to fix the base plate to the inside of the frame in a form-fitting and/or non-positive manner Profile bar perform a reset movement as soon as the base plate has reached the recording area.

The invention also relates to a shelf, in particular a kitchen cabinet shelf, with a support frame and a base plate.

Trays are used in particular in kitchen cupboards in order to be able to use the storage space provided by the kitchen cupboard as optimally as possible. The shelves can usually be pulled out of the body of the kitchen cabinet individually or as part of a superordinate pull-out unit, so that a high level of convenience is ensured.

Such a tray is, for example, from the publication DE 20 2019 106 557 U1 known. Another related piece of furniture is in the pamphlet DE 20 2010 017 098 U1 suggested. A frame that can be used in a cupboard is also disclosed in the publication DE 10 2011 009 566 A1 described.

In kitchen construction in particular, there is a need for highly customizable kitchen furniture, so that kitchens can be adapted to the needs and preferences of future users. In this context, there is also a need for modular trays in which different combinations of support frame and base plate can be implemented.

Ideally, a change in the tray configuration, for example by exchanging the support frame or the base plate, should be carried out by the user himself, without the need for specialist personnel. In this respect, corresponding trays should also be comparatively easy to assemble and disassemble.

At the same time, however, the modularity of the tray must not impair its load-bearing capacity. Due to the idea of sustainability, comparatively light plastic containers are increasingly being replaced by stone and glass containers in many kitchens, so that trays for modern kitchens should even have an increased load-bearing capacity.

In addition, the modular tray, which has a high load-bearing capacity, must be manufacturable with an acceptable level of manufacturing effort, so that the manufacturing costs allow for a comparatively high level of market acceptance. Since the manufacturing tolerances to be observed in furniture production have a significant influence on the manufacturing costs, there is a need for a shelf construction that places low demands on the manufacturing tolerances.

The object on which the invention is based is therefore to enable the provision of a modular shelf which has a high load-bearing capacity and can be produced comparatively inexpensively.

The object is achieved by a support frame of the type mentioned at the beginning, with the contact section of the springing area extending obliquely in the direction of insertion of the base plate before and after the insertion of the base plate in the direction of the inner area of the frame, so that the base plate can be inserted into the profile strip from above or from below.

The invention makes use of the finding that it is necessary to insert the base plate into the profile strip from above or from below so that the base plate can be inserted into a profile strip that partially or completely surrounds a frame interior area. In combination with the springing area carrying the contact section, non-destructive insertion and removal of the base plate in the support frame is also possible, so that users have the option of combining different support frames and base plates with one another. The fact that the base plate can be removed non-destructively also allows the base plate to be replaced with little effort, for example if it is damaged or is to be replaced by a base plate of a different type. Due to the contact section of the springing area extending obliquely in the direction of the inner area of the frame, comparatively low demands are also made on the tolerances to be maintained during the manufacture of the supporting frame and the base plate. Due to the flexibility of the suspension area, minor dimensional variations can be accommodated without affecting the load-bearing capacity or the stable seating of the Base plate to be balanced in the support frame.

After the base plate has been inserted into the support frame, the base plate preferably has a tight fit within the receiving area of the profile strip. The floor panel can be a decorative panel, for example. Furthermore, the floor panel can be a wooden panel. The profile strip of the support frame is preferably made of metal and serves as a metal border around the base plate.

In a preferred embodiment of the support frame according to the invention, the contact section of the springing area is designed to be pressed outwards by the base plate when the base plate is inserted into the profile strip. For example, when the floor panel is inserted into the molding, a side edge of the floor panel comes into contact with the contact portion of the spring portion and applies a compressive force to the contact portion, so that the contact portion of the spring portion is pushed outward due to the compressive force. Alternatively or additionally, the springing area of the support frame can be set up to carry out the restoring movement for the positive and/or non-positive fixing of the base plate on the inside of the frame of the profile strip in the direction of the inside of the frame. After the contact section of the spring area has been pushed outwards when the base plate is inserted, the profile strip moves back in the opposite direction, i.e. in the direction of the interior of the frame, as soon as the base plate has reached the receiving area, so that the return movement of the spring area enables centering and on the other hand, the base plate is fixed in the receiving area of the support frame.

The support frame according to the invention is further developed advantageously in that the profile strip has an inner leg and an outer leg located on the outside of the inner leg. The springing area is preferably a component of the inner leg, with a free space being located between the outer leg and the inner leg and the springing area being set up to move into the free space when pushed away by the base plate. No additional assembly or disassembly space is therefore required for inserting the base plate into the support frame or for removing the base plate from the support frame. The dimensions of the supporting frame do not change during the assembly and disassembly process of the base plate. The inner leg and the outer leg of the profile strip preferably run parallel to one another at least along a section. The inner leg and the outer leg are preferably connected to one another via a strip section of the profile strip which has a connecting arc.

In another preferred embodiment of the support frame according to the invention, the profile strip has an open cross-sectional profile with two free profile end sections. A profile end section is preferably set up to serve as a support for the floor panel used. The end section of the profile that serves as a support can, for example, be part of the springing area of the profile strip. Furthermore, the profile end section serving as a support can be part of the inner leg of the profile strip. Alternatively or additionally, a profile end section is designed to serve as a lateral stop for the floor panel used. The profile end section serving as a lateral stop can be part of the spring area. Furthermore, the profile end section serving as a lateral stop can be a component of the inner leg of the profile strip. The strip section having a connecting arc is preferably located between the profile end sections. The connecting arc of the strip section preferably extends over an angular range of approximately 180°. The connecting arc of the strip section preferably has a U-shape.

The support frame according to the invention is further developed advantageously in that the contact section of the springing area is part of a profile projection of the profile strip that extends nose-like in the direction of the inner area of the frame. The nose shape of the profile projection extending in the direction of the interior of the frame provides a contact section that extends obliquely in the direction of the interior of the frame, which can be pushed away from the base plate outwards when the base plate is inserted into the profile strip to release an insertion path for the base plate. The nose-shaped profile projection preferably covers a peripheral edge area of the floor panel when the floor panel is located in the receiving area of the peripheral profile strip. Any damage to the edges of the base plate is thus covered by the nose-shaped profile projection and is not visible to the user of the shelf.

In another preferred embodiment of the support frame according to the invention, the springing area has a side edge contact surface which is set up to be in contact with the peripheral side edge of the floor panel after the floor panel has been inserted into the receiving area. Because the side edge contact surface after inserting the bottom panel is in contact with the peripheral side edge of the base plate in the receiving area, a rattling and play-free seat of the base plate in the support frame is ensured. The side edge contact surface is preferably carried by the inner leg of the profile strip.

In an advantageous development of the support frame according to the invention, the springing area has an upper side contact surface which is set up to be in contact with the upper side of the base plate after the base plate has been inserted into the receiving area. Alternatively or additionally, the springing area has an underside contact surface which is set up to be in contact with the underside of the floorboard after the floorboard has been inserted into the receiving area. The base plate positioned in the receiving area is thus also secured upwards and downwards after insertion, so that an unintentional lifting of the base plate from its contact area is avoided. Since it is not possible to unintentionally lift the base plate from the contact area, there is also no risk of injury if a finger is caught between the base plate and the profile strip. A shelf with an appropriate support frame can therefore be cleaned without risk and can also be used in households with small children.

A support frame according to the invention is also preferred in which the profile strip is bent or kinked in the corner areas. The partially or completely circumferential profile strip is therefore preferably a one-piece body and not composed of several strip parts. The profile strip preferably comprises four longitudinal sections, with longitudinal sections adjoining one another being connected to one another in the corner regions. The support frame can be a closed frame in which the profile strip runs completely around the interior of the frame. Furthermore, the support frame can be an open frame, in which the profile strip partially, in particular for the most part, runs around the interior of the frame. If the support frame is an open frame, the profile bar can be slotted, for example. A longitudinal section of the profiled strip preferably has two longitudinal partial sections which are butted together and are joined together. The butt jointed longitudinal sections can be laser-welded.

In a further preferred embodiment of the support frame according to the invention, the profile strip has interruption edges in the corner regions on the inside of the frame. The inner corner areas are preferably lasered free for bending or buckling the profile strip during production, so that bending or buckling does not lead to an edge collision in the corner areas on the inside of the frame.

In addition, a support frame according to the invention is preferred in which the profile strip is designed as a one-piece body. The profile strip is preferably made of metal or is a metal strip. The profile bar can have a coating. The profile bar can be coated with a powder coating. Furthermore, the profile strip can have a galvanic surface.

The object on which the invention is based is also achieved by a shelf of the type mentioned at the outset, the support frame of the shelf according to the invention being designed according to one of the embodiments described above and the base plate being insertable or inserted into the frame interior area of the support frame. With regard to the advantages and modifications of the tray according to the invention, reference is first made to the advantages and modifications of the support frame according to the invention.

The bottom plate of the shelf is preferably made of wood. The base plate can be designed without grooves, so that there is no need for complex processing of the base plate, for example by milling. In alternative embodiments, however, the base plate can also have one or more grooves.

• 1 ein Ausführungsbeispiel des erfindungsgemäßen Tablars vor dem Einsetzen der Bodenplatte in einer perspektivischen Darstellung;
• 2 das in der 1 abgebildete Tablar während des Einsetzens der Bodenplatte in einer perspektivischen Darstellung;
• 3 das in der 1 abgebildete Tablar nach Beendigung des Einsetzvorgangs der Bodenplatte in einer perspektivischen Darstellung;
• 4 das Querschnittsprofil der Profilleiste des Tragrahmens des in der 1 abgebildeten Tablars während des Einsetzens der Bodenplatte in einem ersten Zustand;
• 5 das in der 4 abgebildete Querschnittsprofil während des Einsetzens der Bodenplatte in einem zweiten Zustand;
• 6 das in der 4 abgebildete Querschnittsprofil nach Beendigung des Einsetzvorgangs der Bodenplatte;
• 7 das Querschnittsprofil der Profilleiste eines erfindungsgemäßen Tragrahmens während des Einsetzens der Bodenplatte in einem ersten Zustand;
• 8 das in der 7 abgebildete Querschnittsprofil während des Einsetzens der Bodenplatte in einem zweiten Zustand;
• 9 das in der 7 abgebildete Querschnittsprofil nach Beendigung des Einsetzvorgangs der Bodenplatte;
• 10 das Querschnittsprofil der Profilleiste eines erfindungsgemäßen Tragrahmens während des Einsetzens der Bodenplatte in einem ersten Zustand;
• 11 das in der 10 abgebildete Querschnittsprofil während des Einsetzens der Bodenplatte in einem zweiten Zustand;
• 12 das in der 10 abgebildete Querschnittsprofil nach Beendigung des Einsetzvorgangs der Bodenplatte;
• 13 das Querschnittsprofil der Profilleiste eines erfindungsgemäßen Tragrahmens während des Einsetzens der Bodenplatte von oben in einem ersten Zustand;
• 14 das in der 13 abgebildete Querschnittsprofil während des Einsetzens der Bodenplatte von oben in einem zweiten Zustand;
• 15 das in der 13 abgebildete Querschnittsprofil während des Einsetzens der Bodenplatte von unten; und
• 16 das in der 13 abgebildete Querschnittsprofil nach Beendigung der Einsetzvorgänge der Bodenplatte von oben und von unten.

Preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying drawings. show:

• 1 an embodiment of the tray according to the invention before inserting the base plate in a perspective view;
• 2 that in the 1 illustrated tray during the onset of the base plate in a perspective view;
• 3 that in the 1 illustrated tray after completion of the insertion process of the base plate in a perspective view;
• 4 the cross-sectional profile of the profile bar of the support frame in the 1 illustrated trays during the onset of the base plate in a first state;
• 5 that in the 4 illustrated cross-sectional profile during the insertion of the floor panel in a second condition;
• 6 that in the 4 illustrated cross-sectional profile after completion of the insertion process of the floor panel;
• 7 the cross-sectional profile of the profile strip of a support frame according to the invention during the insertion of the floor panel in a first state;
• 8th that in the 7 illustrated cross-sectional profile during the insertion of the floor panel in a second condition;
• 9 that in the 7 illustrated cross-sectional profile after completion of the insertion process of the floor panel;
• 10 the cross-sectional profile of the profile strip of a support frame according to the invention during the insertion of the floor panel in a first state;
• 11 that in the 10 illustrated cross-sectional profile during the insertion of the floor panel in a second condition;
• 12 that in the 10 illustrated cross-sectional profile after completion of the insertion process of the floor panel;
• 13 the cross-sectional profile of the profile strip of a support frame according to the invention during the insertion of the floor panel from above in a first state;
• 14 that in the 13 illustrated cross-sectional profile during insertion of the floor panel from above in a second condition;
• 15 that in the 13 pictured cross-sectional profile during the insertion of the bottom plate from below; and
• 16 that in the 13 Cross-sectional profile shown after completion of the bottom plate insertion operations from above and below.

the 1 until 3 show the assembly process of a shelf 100. During the assembly process, a base plate 102 made of wood is inserted from above into a support frame 10 of the shelf 100. FIG.

The floor panel 102 is a rectangular decorative panel which has a peripheral side edge 104 . The flat base plate 102 is designed without grooves and has an upper side 106 and an underside 108 .

The support frame 10 includes a profile strip 12 which runs completely around an inner area 14 of the frame. The base plate 102 is to be inserted from above into the frame interior 14 as part of the insertion process. The profile bar 12 is a one-piece body made of metal, so that the profile bar 12 forms a metal border for the base plate 102 after the base plate 102 has been inserted. The profile strip 12 also has four longitudinal sections 16a-16d, which are connected to one another in the corner regions 18a-18d. The profile strip 12 forms a closed frame in which the profile strip 12 is bent or kinked in the corner areas 18a-18d. On the inside 24 of the frame, the profile strip 12 has interrupted edges in the corner regions 18a-18d, so that edge collisions do not occur in the corner regions 18a-18d when the profile strip 12 is buckled or bent over during the production of the supporting frame 10.

The profile strip 12 of the support frame 10 allows the base plate 102 to be inserted from above, so that the base plate can be moved downwards along the insertion direction 20a as part of the insertion process. At the end of the insertion process (cf. 3 ) the base plate 102 is fixed positively and non-positively on the frame inside 24 of the profile strip 12.

A railing 22 is also placed on the surrounding profile strip 12 and serves to further stabilize the objects placed in the tray 100 .

The profile bar 12 of the support frame 10 also allows non-destructive removal of the base plate 102 after the end of the insertion process. The user can thus combine different supporting frames 10 and floor panels 102 with one another.

the 4 until 6 show the open cross-sectional profile of the profile strip 12 during the insertion process of the base plate 102. The profile strip 12 has an inner leg 26 on the inside 24 of the frame. An outer leg 30 of the profile strip 12 is arranged on the outside of the frame 28 . The inner leg 26 and the outer leg 30 run parallel to one another in sections and are connected to one another via a curved strip section 32 . The strip section 32 has a U-shaped connecting arc which extends over an angular range of 180°.

Due to its open cross-sectional profile, the profile strip 12 comprises two free profile end sections 34, 36. The end section 34 runs parallel to the base plate 102.

The profile strip 12 has a spring area 38 on the frame inner side 24 facing the frame inner area 14 . The springing area 38 comprises a profile projection 40 extending in the form of a nose in the direction of the inner frame area 14. The profile projection 40 carries a contact section 42 which, before the base plate 102 is inserted (condition as in FIG 4 ) and after inserting the base plate 102 (cf. 6 ) extends obliquely in the direction of the frame interior 14.

When the base plate 102 is inserted into the profile strip 12, the contact section 42 is pressed outwards by the base plate 102 (cf. 5 ). As a result, the spring area 38 is pressed into a space between the inner leg 26 and the outer leg 30 so that an insertion path for the base plate 102 in the direction of a receiving area 44 of the profile strip 12 is released. As soon as the base plate 102 has reached the receiving area 44 of the profile strip 12 , the springing area 38 performs a restoring movement in the direction of the inner area 14 of the frame. The restoring movement of the spring region 38 fixes the base plate 102 in a positive and non-positive manner on the inside of the frame of the profile strip 12 . The spring area 38 ensures that the base plate 12 is centered and fixed on the support frame 10.

The profile end section 34 serves as a support for the base plate 102 located in the receiving area 44. The profile end section 36 serves as a lateral stop for the base plate 102 inserted in the receiving area 44.

The spring portion 48 has a side edge contact surface 46 , a top contact surface 48 and a bottom contact surface 50 . After the bottom panel 102 is inserted into the receiving area 44 , the side edge contact surface 46 is in contact with the peripheral side edge 104 of the bottom panel 102 . Further, after the insertion process is complete, the top contact surface 48 is in contact with the top surface 106 of the bottom plate 102 and the bottom contact surface 50 is in contact with the bottom surface 108 of the bottom plate 102.

the 7 until 9 show a support frame 10 in which the underside contact surface 50 is arranged on the inner leg 26. The profile end section 36 thus serves as a support for the base plate 102 used.

the 10 until 12 show the insertion process of a base plate 102, the base plate 102 having a circumferential groove 110. The base plate 102 is again inserted into the circumferential profile strip 12 from above in the insertion direction 20a. In this case, however, the profile end section 36 serves as an engagement element which engages in the circumferential groove 110 of the base plate 102 during the return movement of the spring region 38 . The profile end section 36 thus functions again as a support for the base plate 102, with the supporting effect not being achieved by providing a bearing surface for the underside 108 of the base plate 102, but rather by the engagement of the profile end section 36 in the circumferential groove 110 of the base plate 102.

the 13 until 16 show a support frame 10, the profile strip 12 allowing the insertion of the base plate 102 both from above (cf. 13 , 14 and 16 ) as well as inserting the base plate 102 from below (cf. 15 and 16 ) permitted.

As the 13 and 14 show, when the base plate 102 is inserted from above, ie from the insertion direction 20a, the profile projection 40 provides the contact section 42, which is pressed outwards by the base plate 102 during the insertion process.

As the 15 shows, the underside of the profile end section 36 serves as a contact section 42 when the base plate 102 is inserted along the insertion direction 20b, i.e. from below, which is pressed outwards by the base plate 102 during the insertion process of the base plate 102. In both cases, ie when inserting the base plate 102 from above and from below, the respective contact section 42 of the spring area 38 is pressed outwards in such a way that an insertion path for the base plate 102 in the direction of a receiving area 44 is released. As soon as the base plate has reached the receiving area 44 (cf. 16 ), the springing area 38 performs a restoring movement, as a result of which the base plate 102 is fixed and centered.

Reference List

10

supporting frame

12

profile bar

14

frame interior

16a-16d

longitudinal sections

18a-18d

corner areas

20a, 20b

insertion directions

22

railing

24

frame inside

26

inner thigh

28

frame outside

30

outer thigh

32

groin section

34

profile end section

36

profile end section

38

suspension area

40

profile prominence

42

contact section

44

recording area

46

side edge contact surface

48

top contact surface

50

underside contact surface

100

tray

102

bottom plate

104

side edge

106

top

108

bottom

110

groove

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202019106557 U1 [0004]
• DE 202010017098 U1 [0004]
• DE 102011009566 A1 [0004]

Claims (11)

Supporting frame (10) for a shelf (100), with - a profiled strip (12) running partially or completely around an inner area (14) of the frame, into which a base plate (102) can be inserted, the profiled strip (12) being on the inner area of the frame ( 14) has a spring area (38) facing the inside (24) of the frame, which comprises a contact section (42), the contact section (42) of the spring area (38) being set up to being pushed away from the base plate (102) and thereby releasing an insertion path for the base plate (102) in the direction of a receiving area (44), wherein the spring area (38) is set up to fix the base plate (102 ) on the frame inside (24) of the profile strip (12) to carry out a restoring movement as soon as the base plate (102) has reached the receiving area (44); characterized in that the contact section (42) of the spring region (38) extends obliquely in the direction of insertion (20a, 20b) of the base plate (102) before and after the insertion of the base plate (102) in the direction of the inner frame area (14), so that the base plate (102) can be inserted into the profile strip (12) from above or from below. Support frame (10) after claim 1 , characterized in that - the contact section (42) of the spring region (38) is set up to be pressed outwards by the base plate (102) when the base plate (102) is inserted into the profile strip (12); and/or - the springing area (38) is set up to carry out the restoring movement for positively and/or non-positively fixing the base plate (102) on the frame inner side (24) of the profile strip (12) in the direction of the frame inner area (14). Support frame (10) after claim 1 or 2 , characterized in that the profile strip (12) has an inner leg (26) and an outer leg (30) located on the outside of the inner leg (26), the spring region (38) being part of the inner leg (26) and being between the outer leg (30) and the inner leg (26) there is a free space and the springing area (38) is set up to move into the free space when pushed away by the base plate (102). Supporting frame (10) according to one of the preceding claims, characterized in that the profile strip (12) has an open cross-sectional profile with two free profile end sections (34, 36), one profile end section (34, 36) being set up to act as a support for the to serve inserted bottom plate (102); and/or - a profile end section (36) is designed to serve as a lateral stop for the base plate (102) used. Supporting frame (10) according to one of the preceding claims, characterized in that the contact section (42) of the springing area (38) is part of a profile projection (40) of the profile strip (12) extending nose-like in the direction of the frame inner area (14). Supporting frame (10) according to one of the preceding claims, characterized in that the springing area (38) has a side edge contact surface (46) which is set up to contact the peripheral side edge ( 104) of the bottom plate (102) to be in contact. Supporting frame (10) according to one of the preceding claims, characterized in that the springing area (38) - has an upper side contact surface (48) which is set up to contact the upper side ( 106) to be in contact with the bottom plate (102); and/or - has an underside contact surface (50) which is set up to be in contact with the underside (108) of the base plate (102) after the base plate (102) has been inserted into the receiving area (44). Supporting frame (10) according to one of the preceding claims, characterized in that the profile strip (12) is curved or kinked in corner regions (18a-18d). Support frame (10) after claim 8 , characterized in that the profile strip (12) has interrupted edges in the corner regions (18a-18d) on the inside (24) of the frame. Supporting frame (10) according to one of the preceding claims, characterized in that the profile strip (12) is designed as a one-piece body. Shelf (100), in particular kitchen cupboard shelf, with - a support frame (10); and - a base plate (102) , characterized in that the support frame (10) is designed according to one of the preceding claims and the base plate (102) in the frame interior (14) of the support frame (10) can be used or used.

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