Fitting for a sliding door
The compact anti-lift device for sliding doors, featuring a pivot lever and tool holder, addresses the non-compact design and locking inefficiencies of existing fittings by ensuring secure and space-efficient locking and easy assembly.
Patent Information
- Application Number
- DE102014109437
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2014-07-07
- Publication Date
- 2026-01-22
- Estimated Expiration
- 2034-07-07
AI Technical Summary
Existing sliding door fittings with anti-lift devices require a horizontal web on the rail for engagement, leading to a non-compact design and increased installation space, and often lack efficient force transmission and secure locking mechanisms.
A compact anti-lift device design with a pivot lever rotatably mounted parallel to the rail, engaging under the track at the roller area, allowing force transmission and secure locking, and featuring a pivot lever with arms and optional tool holder for easy assembly and activation.
The solution provides a compact, stable, and efficient anti-lift mechanism that prevents lateral movement of the sliding door, minimizing space requirements and ensuring secure locking without additional horizontal web, while allowing easy assembly and activation.
Smart Images

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Abstract
Description
[0001] The present invention relates to a fitting for a sliding door, in particular for furniture, with a rail having at least one track on which one or more rollers of a running part can be moved, and an anti-lift device which engages at least partially under a section of the track of the rail by means of a web, wherein the web engages under the anti-lift device in the longitudinal direction of the rail in the area of the at least one roller and the anti-lift device comprises a pivot lever rotatably mounted about a pivot lever parallel to the longitudinal axis of the rail.
[0002] EP 1 388 631 discloses a roller carrier for sliding doors, in which an anti-lift device is provided in which a slidably mounted molded part with a web engages under a web of a rail. This prevents the sliding door from being lifted, and the molded part must be moved to remove the sliding door. Such anti-lift devices have proven effective in principle; however, this anti-lift device requires a horizontal web on the rail so that the molded part can engage under the web.
[0003] DE 10 2011 050 395 discloses a fitting for a sliding door in which a pivot lever is provided on a running element. This pivot lever can engage a web of a track to secure the sliding door against being lifted out. The pivot lever is positioned at a distance from a roller, so that if the sliding door is lifted, the forces are not introduced in the area of the roller. Furthermore, the installation space for the running element with the anti-lift device is comparatively large.
[0004] DE 20 2009 005 269 U1 discloses a fitting for a sliding door in which a locking device with a rocker that can be pivoted about an axis parallel to the direction of movement is provided on a running part and that can be moved between a locking position and a release position.
[0005] US 2001 / 0010426 A1 discloses a sliding door fitting with a running element that moves along a rail. A flexible locking element is attached to the running element, which can engage a section of the rail with a hook to limit lifting of the running element.
[0006] EP 0 709 337 A2 reveals a guide for a door of an elevator.
[0007] The object of the invention is therefore to create a fitting for a sliding door in which an anti-lift device is effectively provided in a compact design.
[0008] This problem is solved with a fitting having the features of claim 1.
[0009] According to the invention, the fitting for the sliding door includes an anti-lift device in which a web engages at least partially under a section of the track of the rail, the web of the anti-lift device engaging under the rail in the longitudinal direction of the rail in the area of the at least one roller. This allows the fitting to be designed particularly compactly, since the running element in the area of the roller additionally provides the anti-lift device function. Furthermore, under load, the anti-lift device can transmit the forces to the running element with good leverage.
[0010] According to one embodiment of the invention, the anti-lift device comprises a pivot lever rotatably mounted about a pivoting lever parallel to the longitudinal axis of the rail. The pivoting lever can be pivoted between a locking position, in which the track of the rail is at least partially engaged, and an assembly position, in which the track is no longer engaged, to facilitate the assembly and disassembly of the sliding door. Preferably, the pivoting lever is locked in the locking position to prevent accidental release of the anti-lift device.
[0011] To reliably prevent lifting, the gap between the anti-lift device's web and the underside of the rail is preferably smaller than the height of a lateral edge of the rail next to a track. This ensures that even when the sliding door and roller are in a raised position, the lateral edge prevents them from moving laterally away from the track.
[0012] Preferably, the pivot lever has two arms between which the roller is arranged. This allows a force to be absorbed via two spaced-apart arms under load, which also enables stable mounting of the pivot lever. Furthermore, the arrangement of the roller within the arms of the pivot lever results in a particularly compact design.
[0013] In a further embodiment, a first and a second track are arranged vertically one above the other on the rail. This minimizes the lateral space required for the fitting to guide the sliding doors. The rail can be made from a bent sheet of metal, thus minimizing the material used in its manufacture.
[0014] According to the invention, at least one tool holder is provided on the pivot lever, so that the anti-lift device can be pivoted even without actuating a handle section. The tool holder can be arranged in the area of the pivot lever's axis of rotation, allowing access for the tool essentially parallel to the longitudinal direction of the rail. This enables the anti-lift device to be activated or deactivated even in confined spaces.
[0015] In a further embodiment, an upward-pointing projection is provided on the web. This projection can be adapted to the contour of the underside of the guide rail, resulting in a particularly stable locking mechanism against lifting. Furthermore, the gap dimensions below the guide rail can be reduced if the web is curved upwards below the roller, allowing the web to move without contact beneath the guide rail, while maintaining a minimal distance from it.
[0016] The invention is explained in more detail below with reference to several exemplary embodiments and the accompanying drawings. These show: Fig. 1. A perspective view of a piece of furniture with a fitting for a sliding door; Fig. 2 a perspective side view of a first embodiment of a fitting for a sliding door; Fig. 3A and Fig. 3B two views of the fitting of the Fig. 2 in one mounting position; Fig. 4A to 4C several views of the fitting Fig. 3 in the safety position; Fig. 5A to 5E several views of another embodiment of a fitting for a sliding door Fig. 6A and Fig. 6B two views of a modified embodiment of a fitting according to the invention; Fig. 7A and Fig. 7B two views of a modified embodiment of a fitting according to the invention, and Fig. 8 a side view of another embodiment of a fitting according to the invention.
[0017] A cabinet unit 1 comprises a cabinet body 2, on the top of which a rail 3 is mounted for guiding a rear sliding door 4 and a front sliding door 5. In the lower area, a rail with a sliding or roller guide for guiding the sliding doors 4 and 5 can also be provided on the bottom of the cabinet body 2.
[0018] In Fig. Figure 2 shows the front sliding door 5, which is held on the track 3 by a running element 6 so that it can move freely. Behind the track 3, a housing 7 for a self-closing mechanism, in particular a damped self-closing mechanism, is provided on the upper surface. This housing engages a recess in the track 3 with a movable follower 8. The follower 8 is coupled to an activator 9, which is fixed to the running element 6, so that a closing and / or opening movement of the sliding door 5 can be braked, in order to then move the sliding door 5 automatically into an end position.
[0019] Rail 3 has an upper track 10 and a lower track 11, wherein the two running parts 6 of the front sliding door 5 are movably held in the upper track 10, and the rear sliding door 4 is guided in the lower track 11. Rail 3 is manufactured in one piece from a bent sheet of metal and fixed to the upper floor.
[0020] In the Fig. 3A and Fig. Figure 3B shows the running element 6 in a mounting position in which a roller 12 can be placed on the track 10 of the rail 3. A pivot lever of an anti-lift device 20 is provided on the running element 6. This pivot lever has a web 21 that can engage the track 10 in a locking position. In a mounting position, the web 21 is adjacent to the track 10. The pivot lever also includes two arms 22 that extend vertically and transition into a horizontal section 25, so that the track 10 can be engaged by the pivot lever in a U-shape (or C-shape?). The pivot lever is rotatably mounted about an axis 24 located in the area of the roller 12. Above the axis 24, the pivot lever includes a handle section 23, which is inclined in a mounting position and can then be pivoted by the user into a vertical locking position. Fig. 4A to 4B are shown.
[0021] In the locking position, the web 21 engages under the track 10, with the gap between the underside of the track 10 and the web 21 being smaller than the height of a lateral edge 13 adjacent to the track 10. This prevents the sliding door from moving beyond the edge 13 if the roller 12 and the sliding door are lifted. The pivot lever of the anti-lift device engages the section with the edge 13 in a U-shape. An arm 22 and a section 25 are provided on each side of the roller 12, resulting in a particularly compact design of the running element 6 in the area of the roller 12. The axis 24 of the pivot lever is positioned slightly above a pivot axis 26 of the roller 12, but, viewed in the direction of travel, still within the diameter of the roller 12.
[0022] In the Fig. Figures 5A to 5E show the rail 3, on which a running element 30 for the rear sliding door 4 is movably mounted. The running element 30 also includes an anti-lift device 40 with a pivotable lever, wherein a pivot axis 46 of the pivot lever is located in the area of the roller 12. The pivot lever comprises a U-shaped section with an upper horizontal web 43, two vertical webs 44, and a lower horizontal web 41, wherein the lower raceway 11 of the rail 3 is enclosed in a C-shape. A downwardly projecting handle section 42 is integrally formed on the horizontal web 41 of the anti-lift device, which prevents movement of the pivot lever from a locking position ( Fig. 5A) into a mounting position ( Fig. 5C).
[0023] The anti-lift device 40 also comprises two arms arranged on opposite sides of the roller 12. Each arm is formed from the horizontal webs 41 and 43 and the two vertical webs 44, which are connected to each other via the common handle section 42. This allows the running section 30 to be designed in a particularly compact manner.
[0024] In the Fig. 5D and Fig. Figure 5E shows the fitting with the running element 30 during the attempted lifting. The running element 30 was lifted, causing the roller 12 to move away from the track 11. The web 41 thus rests against the underside of the track 11 of the rail 3. While the roller 12 has been lifted from the track 11, it cannot be moved beyond a lateral edge 14 of the track 11, which secures the roller 12 against movement perpendicular to the longitudinal direction of the rail 3. This ensures that even if the running element 30 is lifted, the sliding door 4 cannot be lifted out. The gap between the underside of the track 11 and the web 41 is therefore less than the height of the lateral edge 14 of the track 11.
[0025] In the Fig. 6A and Fig. 6B shows a further embodiment of a fitting, wherein, compared to the embodiment of the Fig. 5. The design of the web 41 is essentially modified. On the side of the web 41 facing away from the running part 30, an upwardly directed projection 45 is formed, which ensures that the anti-lift device 40 is even better protected against the fitting being pulled off. The projection 45 has a chamfer 47, which is oriented essentially parallel to an underside 49 of the V-shaped track 11 of the rail 3. When the running part 30 is lifted, the chamfer 47 thus rests against the underside 49, so that when the running part 30 is pulled forward, the fitting is pushed diagonally downwards again over the chamfer 47. Furthermore, the web 41 has an upper surface 48 below the track 11.
[0026] In the Fig. 7A and Fig. Figure 7B shows a further embodiment of a running element 30' in which the anti-lift device has a web 41' which, viewed parallel to the longitudinal direction of the rail 3, is not flat but curved. An upward curvature 50 on the web 41' ensures that the gap between the underside of the raceway 11 of the rail 3 below the roller 12 is smaller than the gap adjacent to the lateral webs 44. The curvature 50 can be positioned particularly close to the underside of the raceway 11 because the fitting below the roller 12 is insensitive to tolerances. Otherwise, this embodiment corresponds to the Fig. 7A and Fig. 7B the embodiment of the Fig. 5.
[0027] In Fig. Figure 8 shows a further embodiment of a fitting, in which, in addition to the one described in Fig.In the embodiment shown in Figure 5, a tool holder 60 is formed in the area of the web 43. The tool holder 60 is located in the area of a pivot axis for the swivel lever of the anti-lift device 40. The anti-lift device can be actuated not only via the handle section 42, but also, if necessary, via a tool that can be applied to the swivel lever essentially parallel to the longitudinal direction of the rail 3. The tool holder 60 is shown as an Allen key fitting, but can of course also be designed as a slotted, Torx, Phillips, or other tool holder. Reference symbol list 1 cabinet furniture 2 furniture carcass 3 rail 4 sliding doors 5 sliding doors 6 running part 7 cases 8 drivers 9 Activator 10 Career 11 Career 12 Roller 13 Rand 14 Rand 20 Lifting protection 21 Bridge 22 Arm 23 Handle section 24-axis Section 25 26 axis of rotation 30, 30' running section 40 Lifting protection 41, 41' Bridge 42 Handle section 43 Bridge 44 Bridge 45 lead 46 axis of rotation 47 Approach ramp 48 Top 49 Underside 50 Curvature 60 Tool holder
Claims
[1] Fitting for a sliding door with a rail (3) having at least one track (10, 11) on which one or more rollers (12) of a running part (6, 30) are movable, and an anti-lift device (20, 40) which, by means of a web (21, 41), at least partially engages a section of the track (10, 11) of the rail (3), wherein the web (21, 41) of the anti-lift device (20, 40) engages in the area of the at least one roller (12) when viewed in the longitudinal direction of the rail (3), and the anti-lift device (20, 40) comprises a pivot lever rotatably mounted about a pivot lever parallel to the longitudinal axis of the rail (3), characterized by , that at least one tool holder (60) is formed on the pivot lever. [2] Fitting according to claim 1, characterized by , that the pivot lever can be locked in the locking position with the bridge (21, 41) under the track (10, 11). [3] Fitting according to claim 1 or 2, characterized by, that a gap between the web (21, 41) of the lifting safety device (20, 40) and the underside of the rail (3) is smaller than the height of a lateral edge (13, 14) of the rail (3) next to the track (10, 11). [4] Fitting according to any one of the preceding claims, characterized by , that the pivot lever has two arms (25, 43) between which the roller (12) is arranged. [5] Fitting according to any one of the preceding claims, characterized by , that the running part (6, 30) has a vertical rib and the pivot lever is rotatably mounted on the vertical rib. [6] Fitting according to any one of the preceding claims, characterized by , that on the rail (3) a first track (10) and a second track (11) are arranged one above the other in a vertical direction. [7] Fitting according to any one of the preceding claims, characterized by , that the bridge (21, 41) of the lifting safety device (20, 40) engages the track (10, 11) at least in the middle. [8] Fitting according to any one of the preceding claims, characterized by , that the rail (3) is made from a bent sheet of metal. [9] Fitting according to any one of the preceding claims, characterized by , that the tool holder (60) is arranged in the area of the axis of rotation of the swivel lever. [10] Fitting according to any one of the preceding claims, characterized by , that an upwardly directed projection (45) is provided on the bridge (21, 41). [11] Fitting according to claim 10, characterized by , that the projection (45) has a ramp (47) aligned parallel to the underside (49) of a track (10, 11). [12] Fitting according to any one of the preceding claims, characterized by , that the bridge (21, 41) of the lifting safety device has an upwardly directed curvature (50).
Citation Information
Patent Citations
Running element for a sliding door leaf
DE202009005269U1
Overhead supporting beam for an elevator door and a door mechanism arrangement
EP0709337A2
Supporting and sliding system for a piece of furniture door
US20010010426A1