DRIVE UNIT FOR A SLIDING ASSEMBLY, IN PARTICULAR A SLIDING DOOR

Abstract

A drive unit for a sliding arrangement, in particular a sliding door, includes a carriage, which is formed for linearly mobile mounting in relation to a sub-structure of the sliding arrangement, a deflection roller rotatable around a roller axis at the carriage for deflecting a drive belt of the sliding arrangement, and a tensioning device, having a shaft with male thread rotatable around a shaft axis, a first shaft reception with female thread for receiving the male thread of the shaft, a second shaft reception for linear mobile reception of the shaft, and a compression spring between the second shaft reception and a spring abutment at the shaft. The shaft is disposed for tensioning the drive belt by increasing the distance between the first shaft reception and the second shaft reception.

Claims

1. A drive unit for a sliding arrangement, in particular sliding door, comprising: a carriage, which is formed for linearly mobile mounting in relation to a sub-structure of the sliding arrangement, a deflection roller rotatable around a roller axis, at the carriage for deflecting a drive belt of the sliding arrangement, and a tensioning device, comprising a shaft with male thread rotatable around a shaft axis, a first shaft reception with female thread for receiving the male thread of the shaft, a second shaft reception for linearly mobile receiving the shaft, and a compression spring between the second shaft reception and a spring abutment at the shaft, wherein the shaft is disposed for tensioning the drive belt by increasing the distance between the first shaft reception and the second shaft reception.

2. The drive unit according to claim 1, wherein one of the two shaft receptions is formed for stationary mounting in relation to the sub-structure and wherein the other one of the two shaft receptions is disposed at the carriage.

3. The drive unit according to claim 1, wherein the compression spring is formed as a spiral spring, on which the shaft is fitted.

4. The drive unit according to claim 1, comprising a display device for displaying the tension of the drive belt with a first display element on the shaft and a second display element, which is disposed stationarily with regard to the second shaft reception.

5. The drive unit according to claim 4, wherein the second display element comprises a frame with a window, through which the first display element is visible at a certain setting of the tension.

6. The drive unit according to claim 1, wherein the shaft axis intersects the roller axis.

7. The drive unit according to claim 1, wherein the deflection roller is delimited by two opposing front faces and the shaft axis extends between the two front faces.

8. The drive unit according to claim 1, comprising a carrier for stationarily mounting to the sub-structure, wherein the carriage is linearly mobile supported at the carrier, and wherein one of the two shaft receptions is stationarily disposed at the carrier.

9. The drive unit according to claim 8, wherein the carrier includes a recess, through which the display device is visible.

10. The drive unit according to claim 8, comprising at least one affixing element for immobile affixing the carriage to the carrier.

11. A sliding arrangement comprising a drive unit according to claim 1, a sub-structure), a counter-roller and a drive belt, wherein the drive belt extends circulating around the deflection roller and the counter-roller.

12. The sliding arrangement according to claim 11, wherein the shaft is disposed between the drive belt.

13. The sliding arrangement according to any of the claims 11 to, wherein the sub-structure includes a back wall with at least one attaching element for attaching the sliding arrangement to a carrying structure, wherein the deflection roller is disposed between the back wall and the carrier bottom, and wherein the roller axis is aligned vertically to the back wall.

14. The sliding arrangement according to claim 11, wherein the shaft is disposed between the area of the frame with the window and the back wall, and/or wherein the shaft is disposed between the area of the carrier bottom with the recess and the back wall; wherein the area of the frame with the window and/or the area of the bottom with the recess is/are formed parallel to the back wall.

15. The sliding arrangement according to claim 11, wherein the carrier bottom comprises a first side and a second side opposite the first side, wherein the first side is facing the back wall and the second side is facing away from the back wall, wherein an engagement for actuating the affixing element is disposed at the second side and/or the affixing element is oriented to the back wall.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Now, the disclosure is described in more detail based on an exemplary embodiment. In this case, it shows:

[0048] FIG. 1 an inventive sliding arrangement with inventive drive unit according to an exemplary embodiment,

[0049] FIG. 2 a lateral view of the inventive drive unit according to the exemplary embodiment,

[0050] FIG. 3 a bottom view of the inventive drive unit according to the exemplary embodiment,

[0051] FIG. 4 individual components of the inventive drive unit according to the exemplary embodiment,

[0052] FIG. 5 the inventive sliding arrangement with the inventive drive unit according to the exemplary embodiment in a perspective view, and

[0053] FIG. 6 the inventive sliding arrangement with the inventive drive unit according to the exemplary embodiment in a further view.

DETAILED DESCRIPTION OF THE DRAWINGS

[0054] In the following is explained in more detail a sliding arrangement 50 with drive unit 1 based on FIGS. 1 to 6. FIG. 1 shows the drive unit 1 with purely diagrammatically illustrated components of the sliding arrangement 50. FIGS. 2 to 4 just show the drive unit 1. FIGS. 5 and 6 show the sliding arrangement 50 with drive unit 1 while considering several details of a sub-structure 51.

[0055] In addition to the drive unit 1, the sliding arrangement 50 comprises the sub-structure 51, to which the drive unit 1 is mounted. Furthermore, a drive belt 52 is provided, which extends around a deflection roller 11 of the drive unit 1 and a non-illustrated counter-roller.

[0056] Purely diagrammatically illustrated is a catch 53 disposed at the drive belt 52. A leaf 54, which is horizontally displaceable via the drive belt 52, is attachable or is attached to the catch 53. The sliding arrangement 50 can be formed as a moving unit for a sliding door, to which the leaf 54 is attachable. As an alternative, the sliding arrangement 50 can comprise the leaf 54 and can be formed as a sliding door. In FIG. 1, the illustration of the leaf 54 is purely diagrammatically seen, because preferably the leaf 54 is disposed vertically to the roller axis 41. Thus, unlike in the illustration of FIG. 1, the leaf 54 protrudes from the plane of the drawing.

[0057] The drive unit 1 according to FIGS. 1 to 4 comprises a carrier 2. The carrier 2 comprises a carrier bottom 3, which is connected to a carrier wall 4, in particular integrally manufactured. The carrier wall is attached in an immobile manner to the sub-structure 51.

[0058] There are slots 5 and a recess 6 in the carrier bottom 3.

[0059] Furthermore, the drive unit 1 comprises a carriage 10. The carriage 10 includes sliding feet 12. Respectively, one or more sliding feet 12 are linearly mobile guided in a slot 5. Furthermore, affixing elements 13 in the shape of screws are provided, which protrude through the slots 5 and function for affixing the carriage 10 with regard to the carrier 2.

[0060] A deflection roller 11, which guides the drive belt 52 between two opposing front faces 14, is located on the carriage 10. The deflection roller 11 is rotatable about a roller axis 41 with regard to the carriage 10. The carriage 10 is vertically mobile to the roller axis 41 and parallel linearly mobile to a shaft axis 40.

[0061] Furthermore, the drive unit 1 comprises a tensioning device 20. Said tensioning device 20 comprises a shaft 21, which is rotatable about the shaft axis 40. In a given order, the shaft 21 includes a tool engagement 22, an area with male thread 23, a spring abutment 24, a spring area 25, a sliding area 26 and a pull-out safety 27. For example, the tool engagement 22 is formed as a polygon such that a corresponding tool can rotate the shaft 21.

[0062] Furthermore, the tensioning device 20 includes a first shaft reception 28 with female thread. In the exemplary embodiment, the first shaft reception 28 is stationary in relation to the sub-structure 51. For this purpose, the first shaft reception 28 is an integral component of the carrier 2. The shaft 21 is fitted in the first shaft reception 28, wherein the male thread 23 of shaft 21 engages in the female thread of the first shaft reception 28.

[0063] Furthermore, the tensioning device 20 comprises a second shaft reception 29, which is linearly mobile in relation to the sub-structure 51. For this purpose, the second shaft reception 29 is formed as an integral component of the carriage 10. The shaft 21, with the sliding area 26 thereof, is fitted in the second shaft reception 29, such that the shaft 21 is linearly mobile in relation to the second shaft reception 29 parallel to the shaft axis 40. So that the shaft 21 does not slide out of the second shaft reception 29, a pull-out safety 27, in the shape of a securing ring, is provided at the end of the shaft 21.

[0064] Furthermore, the tensioning device 20 comprises a compression spring 15. The compression spring 15 is fitted on the spring area 25. One end of the compression spring 15 props up at the second shaft reception 29 and thus at the carriage 10. The other end of the compression spring 15 props up against the spring abutment 24 on the shaft 21.

[0065] The compression spring 15 is masked in FIG. 2. It can be very well seen in this illustration that the shaft 21 does not abut at the second shaft reception 29, but the carriage 10 is linearly mobile with regard to the shaft 21. Just the compression spring 15 transmits the force from the shaft 21, respectively the spring abutment 24, to the carriage 10, when tensioning the drive belt 52.

[0066] As in particular FIGS. 3 and 4 reveal, the drive unit 1 includes a display device 30. Said display device 30 comprises a first display element 31 and a second display element 32. The first display element 31 is formed on the shaft 21. In the exemplary embodiment shown, the shaft 21 has a groove at the spring abutment 24, in which a coloured rubber ring is seated.

[0067] The second display element 32 comprises a window 34, through which the first display element 31 is visible, when tension is correctly set. The window 34 is slot-shaped.

[0068] In particular for this purpose, the recess 6 is provided in the carrier bottom 3, such that from the front the installation technician sees both the window 34 and the first display element 31.

[0069] In the exemplary embodiment shown, the second display element 32 comprises a frame 33, in which the window 34 is hollowed out.

[0070] The frame 33 is clipsed to the second shaft reception 29 and thereby stationary in relation to the carriage 10.

[0071] In the following based on FIGS. 5 and 6, the sliding arrangement 50 with the drive unit 1 is described in more detail while considering details of the sub-structure 51. The two Figures show that the sub-structure 51 comprises a back wall 55 and a side wall 57. Essentially, the back wall 55 is vertical to the roller axis 41. Essentially, the side wall 57 is parallel to the roller axis 41 and parallel to the shaft axis 40. In the installed state, the back wall 55 is vertically oriented and is located at a carrying structure.

[0072] Preferably, in the installed state, the side wall 57 is horizontally oriented. The side wall 57 can face the ceiling of a room. The not-illustrated leaf 54 adjoins in FIG. 6 on the left hand side. For a sliding arrangement of the leaf 54, a rail projects from the back wall 55. The rail is oriented parallel to the side wall 57. The rail can accommodate a roller carriage as the catch 52, to which the leaf 54 is attachable.

[0073] The back wall 55 is used for attaching the sub-structure 51 to a carrying structure. For this purpose, the back wall 55 includes several attaching elements 56, herein formed a through holes. Said through holes extend parallel to the roller axis 41, so that parallel to the roller axis 41, screws can be inserted into the attaching elements 56 for screwing the back wall 55 to the carrying structure.

[0074] The side wall 57 is used for attaching the carrier 2, herein the carrier wall 4. The carrier 2, in particular the carrier wall 4, is attached with carrier attaching elements 58, in particular in the shape of screws, to the side wall 57 of the sub-structure 51. Preferably, said carrier attaching elements 58 in the shape of screws extend vertically to the side wall 57 and/or vertically to the roller axis 41.

[0075] FIGS. 5 and 6 show that the deflection roller 11 and the shaft 21 are located between the carrier bottom 3 and the back wall 55 of the sub-structure 51. Correspondingly, the drive belt 52 extends between carrier bottom 3 and back wall 55.

[0076] Said arrangement makes the tool engagement 22 at the shaft 21 easily accessible from the front for the installation technician.

[0077] Moreover, the recess 6 in the carrier bottom 3 points to the front, such that the area of the frame 33 with the window 34 is very well visible from the front through the recess 6.

[0078] Again, the first display element 31 on the shaft 21 is visible through said window 34.

[0079] FIG. 6 makes clear that the affixing elements 13 have respectively one engagement 42, herein formed as an external hexagon. Said engagement 42 is located on the under side (second side) of the carrier bottom 3. Thereby, the engagements 42 of the affixing elements 13 are easily accessible from the front for the installation technician. The shaft 21 comprises a tool engagement 22, wherein the tool engagement 22 corresponds to the engagement 42 of the affixing element 13. Hereby, the installation technician is able to use the same tool for rotating the shaft 21 and thus for tensioning the drive belt 52 as for rotating the affixing element and thus for attaching the carriage 10 to the carrier 2.

[0080] When mounting, initially the installation technician can attach the pre-mounted drive unit 1 to the sub-structure 51. For this purpose, the carrier 2 is attached to the sub-structure by means of carrier attaching elements 58. Hereby, the carrier 2 is attached in such a manner to the sub-structure 51 that the drive belt 52 is pre-tensioned. In this case, the carrier 2 can be disposed at different locations of a groove of the side wall 57.

[0081] Thereby, without changing his/her position, the installation technician can engage with a tool at the tool engagement 22 of the shaft 21 and rotate the shaft 21 for so long until the first display element 31 appears in the window 34. Hereby, the correct tension is set. In this case, without changing his/her position, while rotating the shaft 21, the installation technician is able to see the window 34 through the recess 6. Hereby, the installation technician can see through the recess 6, as the first display element 31 moves towards the window 34.

[0082] Now, without changing his/her position, the installation technician is able to engage the same tool at the engagement 42. Now, the affixing screw 13 allows for fixing the carriage 10 at the set position with regard to the carrier 2. Hereby, keeping the drive belt 52 tensioned at the correct force.