EP0688920B1 - Connection apparatus for a stairway handrail - Google Patents

Abstract

The connector (20) has two connecting units (24) which in the assembled state are rotatable relative to each other and/or to the adjoining handrail sections (12) so that any angle can be set between the two assembled rail sections. The connecting units (24) can be designed so that in the assembled state they rotate relative to each other about a first axis. Each connecting unit can have an attachment for the end of the handrail section and each attachment can rotate between connecting unit and rail section. The connecting units and/or attachments can be made from wood and/or metal materials and/or plastics and/or stone. <IMAGE>

Description

TECHNICAL AREA

The present invention relates to a connecting device for a stair handrail with at least two handrail sections, each between the handrail sections Connection device is arranged and, on the connection device the end areas of the handrail sections with a predeterminable solid angle can be attached.

Stairs require handrails for safety when walking on them. Because stairs with different slopes and different The handrails, to adapt to the respective requirements, accordingly be designed. There are many attempts for easy mountable, to the different inclinations and angles as well as curvatures to adjust handrails. these can but only from appropriate materials, such as metals, Plastics, ropes or the like. Are formed. Call them when touching a different grip than wood. Lots Stair users and builders prefer from different Establish a wooden handrail. This already mediates from optically a feeling of stability. He has a appropriate appearance and above all, it conveys the desired Feeling when you touch it. Wood for such purposes can with economically reasonable effort only from straight Pieces exist. Accordingly, handrails are different for stairs Inclination for spiral stairs and spiral stairs to assemble from individual straight pieces. If the angles of the different sections of the handrail to be joined are very well known, they can be found at the factory Circumstances with the help of computer-aided and construction and manufacturing units at least partially prefabricate. Practice shows, however, that with stairs that meet the inevitable tolerances Construction can be adjusted accordingly, the handrails too must be assembled accordingly on the construction site.

STATE OF THE ART

If you are within a straight running part because of different Inclination has to make a kink, so lets this is still relatively easy with a clean one Realize cut on the bisector, which is advantageous is carried out in the factory. Every kink with sharp corner, however, leads to cuts made on the building inevitably to messiness. Also for the carrying cheeks and / or handrails known solutions, for example GB-A-2 147 022, DE-GM 71 37 304 and DE-GM 75 39 028 = DE-OS 25 55 041, have elaborate craftsmanship exactly on top of each other coordinated joints and joints that are processed very cleanly have to.

From conventional stair manufacturing, they are in the stairwell and vertically at the bottom and top of each barrel towering handrail supports known. These became Achieving a smooth, continuous railing with a profile fittingly connected handrail sections correspondingly clean manual work requires which with economically justifiable effort for assembly railings is no longer available today.

Also the attachment of a continuous wooden handrail or wooden materials on differently inclined sections with quick assembly struts requires the individual Adaptation to construction. It is important to do this retrospectively Corrections can be made without visible traces can.

A stair handrail is described in EP 0 264 085 B1, provided with corner pieces as connecting means in the joint area are the two connection side surfaces at an angle to one another have in a recessed arrangement. The connection is carried out using fasteners such as screws, dowel anchorages, Clamping elements or the like. Here is of it assumed that with a quick adjustment and assembly work even by average craftsmen or fitters small angular inaccuracies when cutting off the front Handrail sections occur due to dimensional adjustments and the Cut edge, sometimes smaller or larger cutouts exhibit. By connecting the handrail sections in the Depression areas visually cover these impurities.

PRESENTATION OF THE INVENTION

The present invention has for its object a Compared to the above-mentioned improved connection of the Specify stair handrail sections that are easy to assemble is an economical factory prefabrication enables with dimensional tolerances at the assembly site without any problems can be balanced, which is an appealing exterior Appearance and has a good grip. In addition, another task is an easy to assemble and economically favorable stair railing.

The connecting device according to the invention is by the Features of claim 1 given. Advantageous configurations and further developments are the subject of the subclaims.

The connecting device according to the invention stands out accordingly characterized in that the connecting device two Has connection units that in the assembled state with each other and / or with respect to the subsequent handrail sections are rotatable, so that in the assembled state any between the handrail sections to be connected predetermined solid angle is adjustable. Thereby, that in the assembled state, overall, a rotary movement of the connecting device with their connecting units around two axes is possible, the connection device can easily on the solid angle between the incoming handrail section and outgoing handrail section can be set. Especially is a dimensional tolerance compensation that can be easily for example different heights of the floors on the Construction site results. As a result, the stair handrail can also be used Deviations from those on which the handrail is based Dimensions easily assembled by non-specialists will. The handrail sections can be straight or, especially with spiral or spiral stairs, along one be designed to run in a predetermined space curve.

A preferred embodiment of the connecting device according to the invention, which has a compact structure is characterized in that the connecting units are designed in this way are that they are assembled around a first axis are rotatable relative to each other (rotary movement V) and each Connection unit a connection unit for the end area has a handrail section, at least one connection unit is designed so that in the assembled state Relative rotation (rotary movement H) between the connecting unit and handrail section to be connected around the end area existing longitudinal axis of the handrail section is possible, where the first axis and the longitudinal axis of the to be connected Handrail sections preferably intersect at one point.

With regard to the existing geometry of the respective axes of rotation characterized by a preferred embodiment that the connecting device is designed so that the longitudinal axes of the handrail sections to be connected perpendicular to the first axis.

Another advantageous, the conditions in the assembled state in terms of variability and flexibility load-bearing variant is characterized in that the connecting device is designed so that the longitudinal axes of the handrail sections to be connected at an angle 45 degrees to the first axis. One according to the invention particularly preferred embodiment stands out characterized in that the connecting device is spherical Has outer contour and the connection units as hemispherical elements are formed, with a visually appealing Training characterized in that the handrail sections as full circle cross sections, preferably made of wood material, are trained.

A design that meets the highest design standards and at the same time the safety requirements according to the invention Embodiment is characterized in that the Diameter of the connecting device is larger than that largest cross-sectional dimension of the handrail sections and the Hemispheres are mutually rotatable about the first axis are that the outer contour of the ball during the turning process Connection device is retained.

One with regard to economical prefabrication at the factory particularly preferred embodiment stands out in that a connection device is selected, in which the rotation around the first axis by a vertical to the hemisphere cut surfaces and through the center of the sphere trending, in accordance with the hemispherical cut surfaces existing cylindrical pin engaging recesses or hollow cylindrical rotating ring is made possible.

A particularly simple design variant, at the usual solid angle constellations that occur with stair handrails between the individual handrail sections are characterized in that the hemisphere cut surface at an angle of approx. 45 degrees to each Longitudinal axes of the handrail sections - measured between the Longitudinal axis and its projection on the hemisphere section plane - is arranged.

In a particularly preferred embodiment of the invention Connection device has the connection unit Inner contour, which is essentially the outer contour of the Handrail section corresponds. This allows for assembly in simply the appropriate handrail, after the connection device or the connection units have been rotated into the corresponding spatial position, inserted and then fixed.

The connection unit can by a corresponding in the hemisphere existing recess are formed.

In a particularly advantageous embodiment, the connection unit formed as a hollow profile unit in which the Handrail section is insertable. This is preferred an end plate is provided to the side of the hemisphere to a corresponding flattening on the hemisphere element or recess fits.

The connection unit around the longitudinal axis is particularly preferred of the handrail section to be connected is rotatable, so that the connection unit is rotated in the assembled state can be that any existing fixative, such as in particular Screws through the wall of the connector run and fix the handrail sections in one Position can be rotated when walking up the stairs is practically invisible, d. H. preferably on the bottom.

In a further embodiment, which is preferably made of plastic is executed, the connection unit is in one piece the connection unit connected.

In a further embodiment according to the invention, the one permanent and reliable usability guaranteed is characterized in that the handrail sections on the Connection units and the connection units with each other are designed to be fixable after assembly.

As material for the connection units and / or the connection units comes wood and / or metallic materials, preferably stainless steel, and / or plastic and / or stone in Consideration. A visually appealing design draws are characterized in that for the hemisphere elements wood and the stainless steel connection units are used.

A further development according to the invention is characterized by this from that the connecting means for receiving has tensile forces acting in the direction of the first axis. This can, for example, cause the hemispheres to rise when Turning process or largely in later use be prevented.

A particularly preferred embodiment of the invention Connection device is characterized in that in the longitudinal axis direction in a corresponding recess the connecting unit has an articulated arm, whereby both articulated arms are articulated to one another and thereby the first axis is formed and in the assembled state the articulated arms are each rotatable about the longitudinal axis. Means for fixing or tensioning are preferred the articulated arms provided after assembly. This can be a Reliable opening of the hemispheres even under the highest loads be prevented.

One in terms of permanent functionality and one Particularly simple assembly, preferably designed connecting device is characterized in that the articulated arms one in the longitudinal axis direction over the outer contour of the connection units protruding fastening unit, preferably grub screw, has, on which the connection unit can be rotatably attached is. In this embodiment according to the invention can tension by simply turning the connection units the articulated arms and thus a pretensioning force on the hemispherical cut surfaces be applied so that the connecting device Can absorb tensile forces without it Gaping comes in the hemisphere cut surfaces.

A particularly preferred development of the invention Connection device is characterized in that at the Fastening unit in the longitudinal direction of the subsequent handrail section a securing unit, preferably a pin, Pipe sleeve or the like, which is attached in a corresponding manner existing recess on the handrail section insertable and which can be attached to the handrail section. Prefers is from the outside through the handrail section a fastening screw is screwed in for a fixation the fuse unit within the recess of the Handrail section ensures. This creates a pull-out protection ensures that even at high in the longitudinal axis direction acting tensile forces only with improper handling of the entire banister, pulling out the Handrail sections prevented from the connection units. Prefers has the formed as a pin, tubular sleeve or the like Fuse unit has a certain elasticity so they can also be used in curved handrail sections is.

A connecting device according to the invention, without the Training of individual axes of rotation gets along and at the same time easy assembly, economical factory prefabrication and a tolerance compensation when mounting the construction site, is characterized in that the Connecting device designed as a spherical device is, the at least two connection units with a hollow profile cross section which cross-section has an inner contour has, which is essentially the outer contour of the to be connected Handrail section corresponds and the connection unit has an edge contour which is essentially the Penetration curve of the hollow profile cross section with the spherical Device corresponds, the connection unit preferably has a recessed base plate which on the Connection unit is so attachable.

The handrail according to the invention with connecting devices enables extremely simple assembly, so that it too can be carried out by a non-specialist. At the same time economical prefabrication at the factory is possible. The handrail according to the invention provides a secure grip and continuous handrail and thus fulfills the requirements the building code. In addition, it enables without any problems a tolerance compensation, which is practically always required is because the actual dimensions on site do not correspond to the plan dimensions. In addition to the above The technical advantages of the invention enable Handrail also has a stair handrail design, the highest Meets requirements.

An inventive banister with a handrail with at least two handrail sections, balusters and articulated to the railing rods for connection the handrails on the stair handrail is characterized in that at least one connecting device is present in the manner described above.

A preferred embodiment of the banister according to the invention is characterized in that each joint element a support surface adapted to the outer contour of the handrail section and has at least one recess, which at least in the longitudinal direction and preferably in the transverse direction Longitudinal axis has an inclination and into which a connecting means, preferably screw, for connecting the joint element can be introduced to the handrail section. By the Joint element is a problem-free connection of the balusters possible on the handrail. Due to the arranged recess, can be a visually appealing exterior of the joint element can be achieved and at the same time the attachment of the joint element on the handrail section can be simplified. The inclination of the recess and consequently the inclination of the Lanyard, preferably screw, in the transverse direction to Longitudinal axis allows attachment at any time from the Easily accessible side of the steps of the stairs possible is. This applies to both right-handed and left-handed Stairs. The connecting means preferably penetrates the handrail section so far that this in the fuse unit engages the connecting device and thereby a Pull-out protection of the handrail section from the connecting device is guaranteed.

Further embodiments and advantages of the invention result themselves by the features listed in the claims and by the exemplary embodiments specified below. The features of the claims can be related to one another in any way be combined as far as they are not obvious exclude each other.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1

schematische Teilperspektive eines erfindungsgemäßen Treppenhandlaufs einer gegenläufigen Treppe,

Fig. 2

schematische Draufsicht auf die Treppe gemäß Fig. 1,

Fig. 3

schematische Detail-Draufsicht auf eine Spindeltreppe mit einem erfindungsgemäßen Treppenhandlauf,

Fig. 4

schematische Perspektive der Spindeltreppe mit Handlauf gemäß Fig. 3,

Fig. 5 und 6

schematische Perspektivdarstellung einer Verbindungseinrichtung mit Halbkugelelementen in 180 Grad - bzw. 90 Grad Stellung,

Fig. 7

schematische Schnittdarstellung und auseinandergezogene Perspektivdarstellung der Verbindungseinrichtung gemäß Fig. 5 und 6 ohne Anschlußeinheiten,

Fig. 8

schematischer Schnitt durch eine Verbindungseinrichtung mit Halbkugelelementen und einer ersten Drehzapfenvariante,

Fig. 9 und 10

schematische Darstellung von Varianten der Ausbildung des Drehzapfens,

Fig. 11

schematischer Schnitt durch eine Verbindungseinrichtung mit Halbkugelelementen und Ausnehmungen für die Handlaufabschnitte,

Fig. 12

schematische Detail-Explosions-Perspektiv-Darstellung der Verbindungseinrichtung gemäß Fig. 5 und 6 mit anzuschließenden Handlaufabschnitten,

Fig. 13

schematische Seitenansicht einer als Gelenk ausgebildeten Verbindungseinrichtung,

Fig. 14

schematische Draufsicht auf die Verbindungseinrichtung gemäß Fig. 13,

Fig. 15

schematischer Schnitt durch eine Verbindungseinrichtung mit Halbkugelelementen und gelenkig im Kugelmittelpunkt angeschlossenen Gelenkarmen,

Fig. 16

schematische Perspektivdarstellung einer als Vollkugel ausgebildeten Verbindungseinrichtung mit anschließbaren Anschlußeinheiten,

Fig. 17

schematischer Detailschnitt durch eine Verbindungseinrichtung gemäß Fig. 16 und

Fig. 18

schematischer Schnitt durch eine Verbindungseinrichtung mit Halbkugelelementen und gelenkig in Kugelmittelpunkt angeschlossenen Gelenkarmen und zusätzlich vorhandenen Auszugsicherungen.

The invention and advantageous embodiments and developments thereof are described and explained in more detail below with reference to the examples shown in the drawing. The features to be gathered from the description and the drawing can be used according to the invention individually or in groups in any combination. Show it:

Fig. 1

schematic partial perspective of a stair handrail according to the invention of a counter-rotating staircase,

Fig. 2

schematic plan view of the stairs according to FIG. 1,

Fig. 3

schematic detailed top view of a spiral staircase with a handrail according to the invention,

Fig. 4

schematic perspective of the spiral staircase with handrail according to FIG. 3,

5 and 6

schematic perspective representation of a connecting device with hemispherical elements in a 180 degree or 90 degree position,

Fig. 7

5 shows a schematic sectional view and an exploded perspective view of the connecting device according to FIGS. 5 and 6 without connection units,

Fig. 8

schematic section through a connecting device with hemispherical elements and a first pivot variant,

9 and 10

schematic representation of variants of the design of the pivot,

Fig. 11

schematic section through a connecting device with hemispherical elements and recesses for the handrail sections,

Fig. 12

5 shows a schematic, exploded perspective view of the connecting device according to FIGS. 5 and 6 with handrail sections to be connected,

Fig. 13

schematic side view of a connecting device designed as a joint,

Fig. 14

schematic plan view of the connecting device according to FIG. 13,

Fig. 15

schematic section through a connecting device with hemispherical elements and articulated arms articulated in the center of the sphere,

Fig. 16

schematic perspective representation of a connecting device designed as a solid sphere with connectable connection units,

Fig. 17

schematic detail section through a connecting device according to FIG. 16 and

Fig. 18

schematic section through a connecting device with hemispherical elements and articulated arms connected in the center of the ball and additional pull-out protections.

WAYS OF CARRYING OUT THE INVENTION

In Figures 1 and 2 is a stair handrail 10 for one two-way counter-rotating staircase 14 with intermediate platform 16 shown, with the individual at a certain solid angle mutually arranged handrail sections 12.1, 12.2, 12.3 by means of a connecting device 20 in their respective End area are interconnected, as described below will be. The handrail 10 is adjustable in height Railings 18 attached, which in turn support on the steps 19.

The between the handrail section 12.1 and the handrail section 12.2 Existing angles are referred to as solid angles 22. The diameter of the ball is essentially formed Connection device is larger than the diameter of the circular handrail to be connected.

In Figures 3 and 4 is the use of such a schematic Connecting device 20 for a spiral staircase 15 shown. Here is / are below each connection device 20 a railing rod 18 and between the connecting devices 20 each have at least one, in the exemplary embodiment two railing rods 18 are present. By an obtuse-angled formation of the end faces of the step coverings 19 it is also possible to configure a handrail create where all the balusters below the handrail sections and some not below the connector available.

As shown in Figures 5 to 7, a connecting device 20 a first connection unit 24.1 and a second connection unit 24.2. Both connection units 24 are essentially designed as hemispherical elements. The hemisphere elements are with their hemispherical cut surfaces 25.1 or 25.2 concentrically rotatable on one another arranged. At the center of the through the hemisphere elements The ball formed is perpendicular to the hemisphere cut surface 25 a pivot 32 in corresponding recesses 34 on the Hemispherical elements 24 present, the kinematically one forms first axis of rotation 26. The two hemispherical elements 24.1 and 24.2 can thus be rotated against each other about the axis of rotation 26 be without the outer shape of the connecting device 20, d. H. the ball changes. At an angle of 45 degrees to the first axis of rotation 26 and perpendicular in one plane to the hemispherical cut surfaces 25 are the longitudinal axes 28.1 and 28.2 of the handrail sections to be connected 12.1 or 12.2 available. This is made possible by the fact that connection units 30.1 or 30.2 on the hemisphere elements are attached, in which the handrail sections 12, one Have circular cross-section, introduced during assembly can be. The neck-like design of the connection units 30 allows the handrail sections 12 to be connected not the theoretically exact length between must have two connecting devices 20, but be adjusted and inserted accordingly at the construction site can. This makes it possible to easily measure existing deviations balance. The hemisphere elements can therefore be rotated so that the angle between the longitudinal axes 28.1, 28.2 of the subsequent handrail sections 12.1, 12.2 can range between 90 degrees and 180 degrees.

In the wall of the connection unit 30, which is preferably made of Stainless steel is a recess 36 through which a fixing screw 38 (see FIG. 8) is screwed in therethrough can be.

The connection unit 30 itself can be rotated in the assembled state attached to the respective hemispherical element 24, so that after Completion of the assembly of the handrail sections 12 the connection unit 30 can be rotated so that the recess 36 can be placed where it is optically least disturbs. Then the fixing screw 38 can be screwed in and the handrail section 12 is fixed in its position will.

To pull forces acting in the direction of the first axis 26 To be able to accommodate, the pivot 32 on each hemisphere side a snap ring 40, which in a corresponding circumferential groove engages in the hemisphere element.

9, a snap ring 42 is provided on the pivot 32, which has a conical outer contour with in the direction of insertion increasing diameter, such that it is in the recess 34 of the hemisphere element 24 can be inserted and can easily snap into it when the groove is reached.

The pivot 44 shown schematically in FIG. 10 has in the respective end region on a sawtooth structure 46 that is arranged that a smooth insertion or hammering the pivot in the recess 34 is guaranteed and when the trunnion is driven in, 44 tensile forces in the axial direction 26 can be included. This type of pivot represents a simple and economical solution since it a smooth rotation is not absolutely necessary the hemisphere elements. When installing the Hemisphere elements usually only once around a given one Angular amount can be rotated against each other, including a increased effort can be used without the functionality to restrict the connection device as a whole.

In the embodiment of a connecting device shown in FIG. 8 35, a pivot 48 is formed, the each has two sleeves 50.1 and 50.2 rotatable relative to one another, each in the corresponding recess 34 of the Hemispherical element are glued. The sleeves 50.1 or 50.2 are screwed through a screw 52 on the inside, a screw head 54 with internal thread and a corresponding Lock nut 58 fixed in its rotating position.

The cylindrical connection units 30.1, 30.2 have a Base plate 60.1 or 60.2, which in a corresponding in the flat surface area present over the hemisphere elements a screw 62 rotatably on the respective hemispherical elements 24 can be connected. The screw connection is in the assembled state not fully tightened, so that the connection unit 30 um the longitudinal axis 28 can be rotated. This is advantageous since then, as already mentioned, the connection units 30 can be rotated with its opening 36 so that the to be screwed in after mounting is complete for reasons of fixation Fixing screw 38 is rotated into the position in which it least disrupt optically.

The connection device shown schematically in FIG. 11 70 differs from the connection device described above 20 in that the connection units 72 through recesses present in the hemisphere elements 24.1, 24.2 72.1, 72.2 are formed, which are in the handrail sections 12 can be inserted. The inner contour of the recesses 72.1, 72.2 correspond to the outer contour of the hanlauf section to be connected 12. According to FIG. 11, a pivot 32 forms the first axis 26. Instead of a pivot, a hollow cylindrical one Rotating ring 74 are used, which is shown in FIG. 11 is shown in dashed lines.

12, the connecting device 20 is in an explosion perspective shown. The individual rotary movement options are shown by arrows during assembly. The arrows H1 and H2 illustrate the rotary movement the handrail sections 12.1 and 12.2 about their longitudinal axis 28.1 and 28.2. The arrows V1 and V2 show the relative rotation options the connection units 24 around the Rotation axis 26. The arrows A1, A2 show the rotation options the connection units 30.1 and 30.2 about the longitudinal axis 28.1 and 28.2.

With a connecting device shown in FIGS. 13 and 14 110, which is preferably made of plastic is a first connection unit 112.1 and a second Connection unit 112.2 present, which is in the form of a swivel joint are trained. To the connection unit 112.1 or 112.2, a connection unit 114.1 or 114.2 is formed, which has the shape of a hollow cylindrical pocket, into which the handrail section 12.1 or 12.2 to be connected can be inserted, with a rotation in the assembled state around the respective longitudinal axis 28.1 or 28.2 is possible.

The first connection unit 112.1 has a single wall Projection 122 with a recess. The second connection unit 112.2 has two spaced apart Projections 124 each with a recess, wherein the projection 122 of the first connection unit 112.1 in the Clearance between the protrusions 124 of the second connection unit 112.2 can be inserted, the as Bore-shaped recesses come to lie coaxially. In the through hole produced by this is a Hinge pin 116 arranged, the rotation of the two connecting units 112.1 and 112.2 about an axis of rotation 118, the perpendicular to the through the at an angle to each other standing longitudinal axes 28.1, 28.2 plane formed. The construction is in the present embodiment as two-section joint design. Is possible also a one-cut joint construction.

Those introduced into the connection unit 114.1 or 114.2 Stair handrail sections 12.1 and 12.2 can be fixed using a fixing screw 120 in its final position after assembly be fixed.

15 is a connection device 80 with connection units 82.1, 82.2, which are also hemispherical with a less than 45 degrees to the longitudinal axes 28.1 or 28.2 of the handrail sections 12.1, 12.2 to be connected existing hemispherical cut surface 25.1 or 25.2 are. However, there is no pivot here that is vertical is arranged to the hemisphere section plane, but it are two lying in the direction of the longitudinal axes 28.1 and 28.2, in corresponding on the hemispherical elements 82.1 and 82.2 articulated arms 85.1, 85.2 are provided, which are articulated to each other, whereby this pivot point is in the center of the ball and that Joint is designed so that a possibility of rotation by a Axis of rotation 88 is present, which is perpendicular to the longitudinal axes 28.1 and 28.2 and in the hemisphere cut surface 25.1 or 25.2. The articulated arms 85.1 and 85.2 are in Installation condition around the corresponding longitudinal axis 28.1 or 28.2 rotatable. The possibility of rotating the articulated arms 85 about their longitudinal axis must be guaranteed so that a rotation of the hemisphere elements against each other is possible. The connection units 30.1 and 30.2 can in turn be fixed by screws 62, the screws 62 being screwed into the articulated arms 85 at the same time and this after setting the between the to be connected handrail sections 12 existing solid angle 22 clamped in by further turning the screw 62 secured their position and the hemispherical cut surfaces 25.1 and 25.2 are pressed together so that the occurrence of a gaping joint can be avoided. Very good leadership qualities for the rotary movement can then be achieved if a guide ring 84 is arranged in the plane 25, the in corresponding recesses provided on the connection units intervenes.

In an embodiment, not shown, the Rotation of the screw to the rotation of the connector coupled so that by rotating the connector the connection units can be braced.

In the embodiment shown in FIG. 16, one Connection device 90 according to the invention are not two Connection units designed as hemispherical elements but a connection unit available as a solid ball. Coming Connection units 92 for use, which have a hollow profile are formed, the inner contour of the connection unit 92 the outer contour of the handrail section to be connected corresponds. The end contour 94 of the connection unit facing the ball 92 has one corresponding to the penetration curve of ball with the hollow profile of the connection unit 92 shaped curve area. In the present case, namely when the ball penetrates the cylindrical connection unit 92, this penetration curve is a flat one Circular curve. The connection unit 92 has an inside set back bottom plate 96, the set back so is selected that the final contour when the connection unit is attached 94 rests on the outer surface of the ball and the bottom plate 96 to the ball 90 via a fastening screw 98 by a in the wall of the bottom plate 96 of the connection unit 92 existing recess 99 can be connected can. The side wall of the connection unit 92 has one Recess 91 through which the handrail section can be fixed after assembly.

During assembly, the ball can be placed anywhere the respective connection device are attached, whereby any connecting angle for the handrail sections can be produced in a simple manner. Prefers are the connecting device in this embodiment 90 made of wood and the connection units 92 made of stainless steel educated.

The connecting devices shown can also be made from Be plastic. In a preferred embodiment are the connection unit and connection unit integrally formed.

The connecting device 130 shown in FIG. 18 is similar the connecting device 80 according to FIG. 15 Components have the same reference number and are not explained again. The connecting device 130 has in the essentially connecting units designed as hemispherical elements 132.1 and 132.2, where the articulated arms 85.1 and 85.2 a set screw 136 projecting outwards is molded with an external thread. The connection unit 134 has in its bottom 135 a recess with an internal thread on the combs on the threaded pin 136. On the grub screw 136 a fuse unit designed as a thick-walled tubular sleeve 138 screwed on in the longitudinal axis direction 28 to the outside survives, and with a corresponding to the handrail section 12 existing recess 142 comes into engagement. The Recess 142 in the handrail section 12 can be advantageous be prefabricated at the factory, the length of the Recess 142 is chosen so that due to dimensional deviations cuts to be made to the handrail section 12 on the Construction site a complete introduction of the fuse unit 138 is guaranteed at all times. The recess 142 on the handrail section 12 can also go through at the assembly site Drilling.

After the handrail sections 12.1 and 12.2 in the connection units 134.1 and 134.2 have been introduced and thus also the securing units 138 in the recesses 142 come to rest, the connecting device 130 through Rotating the connection units 134 fixed or biased in itself has been a fixing screw 140 from below screwed into the handrail section 12, which in the as a tubular sleeve Cuts 138 trained security unit and thus a pull-out protection of the handrail section 12 from the Connection unit 134 guaranteed.

In the area of the articulation point, that is to say the first axis 88, in which the articulated arms 85 are connected to one another in an articulated manner there is an enlarged recess 142 which the Rotation of the articulated arms 85 during the relative rotation of the connection units 132 guaranteed to each other. The preferred metal ring 84 made of metal or steel guaranteed good guidance properties with respect to the relative rotation the connection units 132 with each other.

The fixing screw 140 can also be used to a connection head, not shown, of a handrail to attach to the handrail section.

The embodiment according to FIG. 18 instructs Another great advantage is that by simply turning the connection units a tension of the connection units is guaranteed, retensioning at the same time is possible, and in addition a pull-out protection is guaranteed is preferred, the fixing screw optically concealed can be screwed in from below and therefore also not in contact with the hand sliding along the handrail is coming.

A joint element is shown schematically in FIGS. 19 and 20 150 is shown, which is used to fasten a railing rod 18 serves on a handrail section 12. The hinge element 150 is pivotable about an axis of rotation 158 at the upper end region of the railing rod 18 connected. The handrail section 12 is designed as a log section. The handrail can also be made of plastic, metal or other material consist. Due to the height adjustment of the balusters 18 and the rotatability of the joint element 150 about the axis of rotation 158 is a trouble-free installation of the joint element 150 to the outer contour of the handrail section 12 at any Inclinations of the same possible. The joint element 150 is in the Area of the system on the handrail section 12 as a component with a cylindrical outer contour, the bearing surface 152 of the joint element 150 to the handrail section 12 formed as a penetration surface of two cylinder bodies is. Outside on the bearing surface 152 are preferred Sealing units, not shown, available, so that the Joint element 150 without a visible joint on the handrail section 12 can be pressed.

The joint element 150 has two recesses 154.1 and 154.2 on what have the following arrangement in space. In the longitudinal axis direction 28 seen (Fig. 19) has the axis 160.1 of the recess 154.1 an inclination 161.1 to the right and the axis 160.2 of the recess 154.2 has an inclination 161.2 to the left. A fastening screw can be inserted into both recesses 154.1 and 154.2 156 are screwed in so that the joint element 150 is connected to the handrail section 12. Cross to The longitudinal axis direction 28 (FIG. 20) has the axis 160.1 and 160.2 of the recess 154.1 or 154.2 an inclination 162 of approx. 15 ° from the vertical to the right.

For fastening the joint element 150 to the handrail section 12, a screw 156 is screwed in for each joint element 150. The spatial arrangement of the recesses 154 allows one problem-free insertion of the fastening screw 156. Because slope 162, it is always possible to use the joint element 150 so that screw 156 is always screwed in can be done from the side on which the stairs are present, regardless of whether a right-handed or left-hand staircase.

Claims (26)

1. Connecting device (20; 35; 70; 80; 110; 130) for a stairway handrail (10; 11) having

   at least two handrail sections (12), it being the case that

   the connecting device (20; 35; 70; 80; 110; 130) is arranged between the handrail sections (12) in each case, and

   the end regions of the handrail sections (12) can be fastened on the connection device (20; 35; 70; 80; 110; 130) at a predeterminable dihedral angle (22),

   characterized in that the connecting device (20; 35; 70; 80; 110; 130) has two connecting units (24; 82; 112) which are designed such that, in the fitted state, they can be rotated with respect to one another and/or with respect to the adjoining handrail sections (12), with result that, in the fitted state, it is possible to set any desired predetermined dihedral angle (22) between the handrail sections (12) which are to be attached.
2. Device according to Claim 1, characterized in that

   the connecting units (24; 82; 112) are designed such that, in the fitted state, they can be rotated relative to one another about a first axis (26; 88; 118) (rotational movement V), and

   each connecting unit (24; 82; 112) has an attachment unit (30) for the end region of a handrail section (12), at least one attachment unit (30; 72; 114) being designed such that, in the fitted state, it is possible for the connecting unit (24; 82; 112) and the handrail section (12) which is to be attached to be rotated relative to one another (rotational movement H) about the longitudinal axis (28) provided in the end region of the handrail section (12).
3. Device according to Claim 2, characterized in that the connecting device (20; 35; 70; 80; 110) is designed such that the first axis (26; 88; 118) and the longitudinal axes (28) of the handrail sections (12) which are to be attached intersect at a point.
4. Device according to Claims 2 and/or 3, characterized in that the connecting device (80; 110; 130) is designed such that the longitudinal axes (28) of the handrail sections (12) which are to be attached are perpendicular with respect to the first axis (88; 118).
5. Device according to Claims 2 and/or 3, characterized in that the connecting device (20; 35; 70) is designed such that the longitudinal axes (28) of the handrail sections (12) which are to be attached are at an angle of 45 degrees with respect to the first axis (26).
6. Device according to at least one of the preceding claims, characterized in that the handrail sections have a circular cross-section and preferably consist of wood.
7. Device according to one or more of the preceding claims, characterized in that the connecting device (20; 35; 70; 80) has a spherical outer contour, and the connecting units (24; 82) are designed as hemispherical elements.
8. Device according to Claim 7, characterized in that the diameter of the connecting device (20; 35; 70; 80) is larger than the largest cross-sectional dimension of the handrail sections (12), and the hemispheres are designed such that they can be rotated with respect to one another about the first axis (26) in such a manner that, when the two hemispherical elements are rotated relative to one another, the spherical outer contour of the connecting device (20; 35; 70; 80) remains intact.
9. Device according to Claims 7 and/or 8, characterized in that the sectional surface of the hemisphere (circular surface 25) in each case has a recess (34), in which a cylindrical pivot pin (32; 44) or a hollow-cylindrical swivel ring (74) engages in a latching or clamping manner.
10. Device according to one or more of Claims 7 to 9, characterized in that the sectional surface (25) of the hemisphere is arranged at an angle of approximately 45 degrees with respect to the longitudinal axis (28) of the handrail section (12) - as measured between the longitudinal axis and the projection of the latter onto the sectional plane of the hemisphere.
11. Device according to one or more of the preceding claims, characterized in that the attachment unit (30; 72; 114) has an inner contour which corresponds essentially to the outer contour of the handrail section (12).
12. Device according to Claim 11, characterized in that the attachment unit (72) is formed by a recess provided in the connecting unit (24).
13. Device according to one or more of Claims 1 to 11, characterized in that the attachment unit (30) is designed as a hollow-profile unit, preferably with a base plate (60), into which unit the handrail section (12) can be pushed.
14. Device according to one or more of Claims 1 to 13, characterized in that the attachment unit (30) is fastened on the connecting unit (24) such that it can be rotated about the longitudinal axis (28) of the handrail section (12).
15. Device according to one or more of Claims 2 to 13, characterized in that the attachment unit is attached integrally to the connecting unit.
16. Device according to one or more of the preceding claims, characterized in that, after fitting, the handrail sections can be fixed to the connecting units and the connecting units can be fixed to one another in their respective end position.
17. Device according to one or more of the preceding claims, characterized in that the connecting units and/or the attachment units consist of wood and/or metallic materials, preferably stainless steel, and/or plastic and/or stone.
18. Device according to one or more of the preceding claims, characterized in that the connecting device has means (42; 46; 85) for absorbing tensile forces acting in the direction of the first axis.
19. Device according to one or more of Claims 4, 6, 7, 8 and 10 to 18, characterized in that an articulation arm (85) is provided in the longitudinal-axis direction (28) in each case in an appropriate recess of the connecting unit (82), the two articulation arms (85) being attached to one another in an articulated manner, and the first axis (88) thus being formed, and it being possible, in the fitted state, for the articulation arms (85) to be rotated about the longitudinal axes (28) in each case (Figures 15; 18).
20. Device according to Claim 19, characterized by means (62) for fixing and/or bracing the articulation arms (85), and thus the connecting units (82.1, 82.2), after fitting.
21. Device according to Claims 19 and/or 20, characterized in that the articulation arms (85) have a fastening unit (136), preferably a threaded pin, which projects beyond the outer contour of the connecting units (132) in the longitudinal-axis direction and on which the attachment unit (134) can be fastened in a rotatable manner.
22. Device according to Claim 21, characterized in that a securing unit (138), preferably a peg, tubular sleeve or the like, is fastened on the fastening unit (136) in the longitudinal direction of the adjoining handrail section (12.1), can be introduced into a recess provided correspondingly on the handrail section (12), and can be fastened on the handrail section (12).
23. Device according to Claim 1, characterized in that the connecting device (90) is designed as a spherical device which has at least two attachment units (92) with a hollow-profile cross-section, which cross-section has an inner contour which corresponds essentially to the outer contour of the handrail section (12) which is to be attached, and the attachment unit has a border contour (94) which corresponds essentially to the curve where the spherical device penetrates the hollow-profile cross-section (Figure 16).
24. Device according to Claim 23, characterized in that the attachment unit (92) has a set-back base plate (96) which can be fastened on the spherical device.
25. Stairway railing having

    a stairway handrail (10; 11) with at least two handrail sections (12),

    railing uprights (18), and

    articulation elements (150) which are articulated on the railing uprights (18) and are intended for attaching the railing uprights (18) to the stairway handrail (10; 11),

    characterized in that there is at least one connecting device according to one or more of the preceding claims.
26. Stairway railing according to Claim 25, characterized in that each articulation element (150) has a bearing surface (152), which is adapted to the outer contour of the handrail section (12), and at least one recess (154) which is inclined at least in the longitudinal direction, and preferably in the direction transverse to the longitudinal axis (28), and into which it is possible to introduce a connecting means, preferably a screw (156), for the purpose of attaching the articulation element (150) to the handrail section (12).

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