Abstract
An arrangement includes a first pull-out guide and a driver for a drive device for moving a movable furniture part in relation to a furniture body. The driver includes a driver projection to be actively connected to the drive device, a first fastening device with a part arranged on the driver, and a part arranged on the first pull-out guide. One part of the first fastening device is a pin, and one part is a pin-receiving element corresponding to the pin. The pin is positioned obliquely to the longitudinal extension of the first pull-out guide. The driver includes a part of a second fastening device for optional fastening of the driver to a second pull-out guide substantially laterally reversed in relation to the first pull-out guide. The part of the first fastening device is laterally reversed in relation to the part of the second fastening device.
Claims
1. An arrangement comprising: a first extension guide for a movable furniture part; and an entrainment member for a drive device for moving the movable furniture part in relation to a furniture carcass, wherein the entrainment member comprises an entrainment projection that can be actively connected to the drive device, wherein a first fastening device is provided with a part which is arranged on the entrainment member and a part which is arranged on the first extension guide, by means of which the entrainment member can be fastened to the first extension guide, wherein one part of the first fastening device is embodied as a pin and one part is embodied as a pin-receiving element corresponding to the pin, wherein the pin is positioned obliquely to the longitudinal extension of the first extension guide and the pin receiving element comprises an insertion channel for the pin, which insertion channel comprises a bottleneck, wherein the entrainment member comprises a part of a second fastening device, which is embodied as a pin or as a pin-receiving element, for optional fastening of the entrainment member to a second extension guide which is substantially laterally reversed in relation to the first extension guide, and that the part of the first fastening device, which is arranged on the entrainment member, is arranged on the entrainment member such that it is laterally reversed in relation to the part of the second fastening device, arranged on the entrainment member.
2. The arrangement according to claim 1, wherein the entrainment member comprises a base plate.
3. The arrangement according to claim 2, wherein the base plate is extending along a plate plane.
4. The arrangement according to claim 3, wherein the plate plane is oriented parallel to the longitudinal extension of the first extension guide and horizontally in the assembly condition of the arrangement.
5. The arrangement according to claim 3, wherein the entrainment member comprises a central plane of symmetry which is right-angled to the plate plane.
6. The arrangement according to claim 5, wherein the part of the first fastening device arranged on the entrainment member and the part of the second fastening device arranged on the entrainment member each are arranged on a side of the plane of symmetry laterally reversed to each other.
7. The arrangement according to claim 5, wherein the plane of symmetry leads through the entrainment projection.
8. The arrangement according to claim 5, wherein the plane of symmetry divides the entrainment member into a first symmetry area and a second symmetry area.
9. The arrangement according to claim 8, wherein the two symmetry areas of the entrainment member are embodied laterally reversed to each other.
10. The arrangement according to claim 1, wherein in the fastening state of the arrangement the pin rests on the pin-receiving element.
11. The arrangement according to claim 1, wherein in the assembly condition of the arrangement the pin is projecting vertically from the entrainment member or from the first extension guide.
12. The arrangement according to claim 1, wherein the pin comprises a central pin axis.
13. The arrangement according to claim 12, wherein the pin axis is oriented right-angled to the longitudinal extension of the first extension guide.
14. The arrangement according to claim 12, wherein the pin comprises a lateral surface which is formed around the pin axis and which fully encloses the pin axis in radial direction.
15. The arrangement according to claim 14, wherein the lateral surface deviates from a circular shape in a cross section which is right-angled to the pin axis.
16. The arrangement according to claim 15, wherein the lateral surfacein the cross section right-angled to the pin axiscomprises two flattened areas on radially opposing sides and two convex areas on radially opposing sides.
17. The arrangement according to claim 16, wherein the shortest straight connection linewhich is leading through the pin axisbetween the flattened areas is shorter than the shortest straight connection linewhich is leading through the pin axisbetween the convex areas.
18. The arrangement according to claim 1, wherein the pin-receiving element is formed in the entrainment member or in the first extension guide, wherein a recess edge of the pin-receiving element is embodied on the entrainment member or on the first extension guide.
19. The arrangement according to claim 1, wherein the pin-receiving element comprises a bearing region for the pin, which bearing region is separate from the insertion channel.
20. The arrangement according to claim 19, wherein the minimal clear width in the area of the bottleneck of the insertion channel is smaller than the minimal clear width in the bearing region.
21. The arrangement according to claim 1, wherein the insertion channel comprises a broader, preferably nozzle-shaped, threading region adjacent to the bottleneck.
22. The arrangement according to claim 1, wherein during a mounting movement the pin can pass the bottleneck of the pin-receiving element only when the entrainment member is positioned obliquely to the longitudinal extension of the first extension guide.
23. The arrangement according to claim 1, wherein the parts of the first fastening device and of the second fastening device formed on the entrainment member are embodied as pins and that the pin-receiving element is arranged on the first extension guide.
24. The arrangement according to claim 1, wherein only one pin or one pin-receiving element is arranged on the first extension guide.
25. The arrangement according to claim 1, wherein in the assembly condition of the arrangement the part of the second fastening device arranged on the entrainment member is distanced from the part of the first fastening device arranged on the first extension guide.
26. The arrangement according to claim 1, wherein the entrainment member comprises a, preferably tongue-shaped, clamping element which is separate from the parts of the fastening devices and which is connected to the extension guide in the assembly condition.
27. The arrangement according to claim 26, wherein the plane of symmetry is running centrally through the clamping element.
28. The arrangement according to claim 1, wherein the first extension guide comprises a carcass rail and a drawer rail which is movable relative to the carcass rail.
29. The arrangement according to claim 28, wherein the part of the first fastening device arranged on the first extension guide is arranged on the carcass rail.
30. The arrangement according to claim 29, wherein the part of the first fastening device arranged on the carcass rail is formed integrally with the carcass rail, preferably is formed into the carcass rail.
31. The arrangement according to claim 1, further comprising a second extension guide which is formed laterally reversed to the first extension guide.
32. The arrangement according to claim 31, further comprising a second entrainment member for the second extension guide, wherein the second entrainment member is formed identically to the entrainment member associated to the first extension guide.
33. The arrangement according to claim 1, further comprising at least one drive device, preferably an ejection device, for moving the movable furniture part relative to the furniture carcass, wherein the drive device can be actively connected to the entrainment member.
34. The arrangement according to claim 31, wherein one drive device is provided for each extension guide.
35. An item of furniture comprising a furniture carcass, a movable furniture part, in particular a drawer, and the arrangement according to claim 1.
36. The item of furniture according to claim 35, wherein there are provided two drive devices, preferably arranged on the bottom side of the movable furniture part embodied as a drawer, wherein a first drive device is associated to the first extension guide and to the entrainment member, and a second drive device is associated to the second extension guide and to the second entrainment member.
37. The item of furniture according to claim 36, wherein at least in a closed position of the movable furniture part the first drive device rests on the entrainment member and the second drive device rests on the second entrainment member.
38. A method for fastening an entrainment member of the arrangement according to claim 1 to the first extension guide, wherein the entrainment member can be brought from a pre-fastening state, in which the entrainment member is positioned obliquely to the longitudinal extension of the first extension guide, by means of the first fastening device into a fastening state with the first extension guide, wherein this is carried out by moving the pin through the bottleneck of the insertion channel and by a subsequent swivelling around the pin of the first fastening device.
39. The method according to claim 38, wherein a second entrainment member, which is formed identically to the entrainment member, can be brought from a pre-fastening state, in which the second entrainment member is positioned obliquely to the longitudinal extension of a second extension guide, by means of the part of the second fastening device arranged on the second entrainment member and by means of the part of the first fastening device arranged on the second extension guide into a fastening state with the second extension guide, wherein this is carried out by moving the pin through the bottleneck of the insertion channel and by a subsequent swivelling around the pin of the first fastening device.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0062] Further details and advantages of the present invention are described more fully hereinafter by means of the specific description with reference to the embodiments by way of example illustrated in the drawings, in which:
[0063] FIG. 1 shows in perspective an item of furniture with two drawers,
[0064] FIG. 2 shows a schematic cross section through an item furniture with a drawer, two extension guides, two entrainment members and two drive devices,
[0065] FIG. 3 shows in perspective an exploded view of an arrangement comprising an extension guide, an entrainment member and a drive device,
[0066] FIG. 4 shows the arrangement according to FIG. 3 in a fastening state,
[0067] FIG. 5 shows the arrangement according to FIG. 4 from below,
[0068] FIGS. 6 to 9 show the fastening movement of the entrainment member on an extension guide in perspective from below together with details,
[0069] FIG. 10 shows extension guides on opposing sides from above with entrainment member in the pre-fastening state,
[0070] FIG. 11 shows the FIG. 10 from below,
[0071] FIG. 12 shows extension guides on opposing sides from above with one entrainment member in the pre-fastening state and one entrainment member in the fastening state,
[0072] FIG. 13 shows the FIG. 12 from below,
[0073] FIG. 14 shows the arrangement together with the first fastening device from below,
[0074] FIG. 15 shows the cross section A-A from FIG. 14 in a detail with the first fastening device,
[0075] FIG. 16 shows the arrangement together with the first fastening device with a differently oriented cross section plane,
[0076] FIG. 17 shows the cross section C-C from FIG. 16 with a detail of the first fastening device,
[0077] FIG. 18 shows in perspective an entrainment member of a second exemplary embodiment,
[0078] FIG. 19 shows in perspective a part of the carcass rail of a second exemplary embodiment with a detail of the pin,
[0079] FIG. 20 shows an arrangement together with the first fastening device of the second exemplary embodiment from below and
[0080] FIG. 21 shows the cross section D-D from FIG. 20 together with a detail of the first fastening device.
DETAILED DESCRIPTION OF THE INVENTION
[0081] A perspective view of an item of furniture 19 within this casetwo movable furniture parts 2 in the form of drawers is illustrated in FIG. 1. The two movable furniture parts 2 are linearly movable supported on a furniture carcass 6 by means of extension guides 3a, 3b (not visible here). The upper movable furniture part 2 is situated in an open position OS, whereas the lower movable furniture part 2 is situated in a closed position SS. Each drawer comprises a front panel 20, a drawer back wall 21, two drawer side walls 22 and a drawer bottom 23.
[0082] FIG. 2 shows in a schematic cross section an item of furniture 19 with a furniture carcass 6, a movable furniture part 2, a first extension guide 3a mounted to the furniture carcass 6 and a second extension guide 3b mounted to an opposing side of the furniture carcass 6. The movable furniture part 2 is detachably connected to the two extension guides 3a and 3b. A first drive device 5a and a second drive device 5b are arranged on the bottom side of the movable furniture part 2. The drive devices 5a and 5b commonly form the drive device 5 for moving the movable furniture part 2 relative to the furniture carcass 6. Where applicable, the movement of the two drive devices 5a and 5b can be synchronized by means of a synchronizing device 24 (illustrated in a dashed line). One entrainment 4a and 4b is connected with each extension guide 3a and 3b. The first extension guide 3a together with the entrainment member 4a forms an arrangement 1. In the same manner, the second extension guide 3b together with the entrainment member 4b forms such an arrangement 1. Each entrainment member 4a and 4b comprises an entrainment projection 7. By means of this entrainment projection 7 the respective entrainment member 4a and 4b can be actively connected with the respective drive device 5a and 5b, preferably with a catch lever of the respective drive device 5a and 5b. The entrainment member 4a is fastened to the part 8b of the first fastening device 8 on the first extension guide 3a via the part 8a of the first fastening device 8 arranged on the entrainment member 4a. The second entrainment member 4b is fastened to the part 8b of the second fastening device 8 arranged on the second extension guide 3b via the part 12a of the second fastening device 12 arranged on the second entrainment member 4b 3b. In this case, thus, the part 8b arranged on the second extension guide 3b simultaneously forms a part of the second fastening device 12. In FIG. 2 the extension guides 3a and 3b on the opposing sides are each situated in a fastening state B with the entrainment members 4a and 4b. The movable furniture part 2 is situated in an assembly condition M with the furniture carcass 6.
[0083] An arrangement 1 together with a drive device 5 is illustrated in a perspective view in FIG. 3. The drive device comprises a mounting plate 25 by way of which the drive device 5 can be fastened to the bottom side of the movable furniture part 2 or to a bearing web of a container rail 26 commonly forming the drawer side wall. The first extension guide 3a comprises a drawer rail 18 and a carcass rail 17. In the illustration according to FIG. 3 the drawer rail 18 is hidden by the container rail 26 for the most part. The carcass rail 18 comprises the guiding part 27 (well visible in the lower region) and the, preferably angular, mounting elements 28. These mounting elements 28 are fixedly connected, preferably welded, to the guiding part 27. Via the carcass rail 17 (preferably via its mounting elements 28) the first extension guide 3a is attached to the furniture carcass 6 by fastening means (not illustrated). The longitudinal extension L of the first extension guide 3a is visualized by a double arrow. The entrainment member 4a comprises the entrainment projection 7, the part 8a of the first fastening device 8 and the part 12a of the second fastening device 12. These two parts 8a and 12a are arranged, preferably in one piece, on the base plate 13 of the entrainment member 4. In addition, the clamping element 16 is arranged on the base plate 13. The base plate 13 of the entrainment member 4a is extending substantially along a plate plane P. This plate plane P is illustrated by the area which is spanned by the two arrows. The plate plane P is oriented parallel to the longitudinal extension L of the first extension guide 3a. In the assembly condition M the plate plane P is oriented horizontally. In FIG. 3 also the plane of symmetry S running centrally through the entrainment member 4a is visualized by the two dashed lines and the area which is spanned by these lines. In the fastening state B the plane of symmetry S is oriented right-angled to the longitudinal extension L of the first extension guide 3a and right-angled to the plate plane P.
[0084] The arrangement 1 together with the drive device 5 is illustrated in FIG. 4 in an assembled state. Thus, the arrangement is situated in the fastening state B.
[0085] FIG. 5 shows the arrangement 1 in a perspective illustration from below. It is visible to some extent that the entrainment projection 7 of the entrainment member 4a is actively connected to the drive device 5. The part 8a of the first drive device 8 arranged on the entrainment member 4 is in a positive-locking connection with the part 8b of the first fastening device 8 arranged or formed on the first extension guide 3a. The part 12a of the second fastening device 12 arranged on the entrainment member 4 is distanced to the part 8b and, thus, in this case (or when using on this first extension guide 3a) functionless.
[0086] A fastening movement of the entrainment member 4a on the first extension guide 3a is illustrated in perspective in the FIGS. 6 to 9. In this exemplary embodiment the part 8a of the first fastening device 8 arranged on the entrainment member 4a is embodied as a pin 9. Equally, the part 12 of the second fastening device 12 arranged on the entrainment member 4a is embodied as a pin 9. The part 9b of the first fastening device 8 arranged on the first extension guide 3a is embodied as a pin-receiving element 10.
[0087] In FIG. 6 the entrainment member 4a is still situated in a distanced position in relation to the first extension guide 3a. It is visible that the pin-receiving element 10 (part 8b) is formed in a mounting element 28 of the carcass rail 17.
[0088] In FIG. 7 the entrainment member 4a has reached the pre-fastening state VB. Therefore, a small gap (see also the detail of FIG. 15) is established between the mounting element 28 illustrated on the left side and the guiding part 27 of the carcass rail 17, wherein the base plate 13 can be inserted along the plate plane P into this gap. The breadth of this gap substantially corresponds to the thickness of the base plate 13. The entrainment member 4acompared to the fastening state Bis oriented obliquely to the longitudinal extension L of the first extension guide 3a. In the detail bottom left it is visible that the pin-receiving element 10 comprises an insertion channel 11 with a bottleneck E. In addition, the insertion channel 11 comprises a broader threading region 15 which is tapering towards the bottleneck E. Further, the pin-receiving element 10 comprises a, preferably circular, bearing region 14. In order to reach the pre-fastening state VB the pin 9 (with its flattened areas F1 and F2 passing the bottleneck E of the pin-receiving element 10) has been moved substantially linear through the insertion channel 11 into the bearing region 14. Concretely, this insertion movementwhen the entrainment member is positioned obliquelyis carried out substantially right-angled to the longitudinal extension L of the first extension guide 3a.
[0089] An intermediate position ZW of the fastening movement is illustrated in FIG. 8. For that purpose, the pin 9 is quasi used as swivelling axis. According to the detail bottom left the pin 9 comprises a vertically oriented pin axis Z. The entrainment member 4a is swivelled clockwise around this pin axis Z as it is illustrated by the arrow. The swivelling movement is guided by the circular bearing region 14 and by at least one convex area F3 and F4 abutting thereon. As a consequence, the flattened areas F1 and F2 of the lateral surface F of the pin 9 are no longer oriented in an aligning manner with the bottleneck E but are positioned obliquely. Thus, the two convex areas F3 and F4 of the lateral surface F are at least partially abutting the bearing region 14 of the pin-receiving element 10. According to the detail bottom right the clamping element 16 has not yet reached the clamping element counter piece 29 on the carcass rail 17. Preferably, this clamping element counter piece 29 is formed as a U-shaped lug in the guiding part 27 of the carcass rail 27.
[0090] The fastening state B is reached in FIG. 9. The entrainment member 4a has been swivelled further around the pin axis Z compared to FIG. 8. The plane of symmetry S of the entrainment member 4a (which divides the entrainment member 4a in the two mirror-symmetrically formed symmetry areas S1 and S2) in the fastening state B is oriented right-angled to the longitudinal extension L of the first extension guide 3a. By the oblique arrangement of the flattened areas F1 and F2 of the pin 9 in relation to the bottleneck E of the insertion channel 11 a positive-locking connection is given in that sense that the entrainment member 4a cannot be released from the extension guide 3a by a linear pulling movement of the entrainment member 4a right-angled to the longitudinal extension L of the first extension guide 3a. In the detail bottom right it is visible that the clamping element 16 is contacting the clamping element counter piece 29. Preferably, a friction-type connection is established between these two components.
[0091] The two extension guides 3a and 3b as well as the two entrainment members 4a and 4b are illustrated in FIG. 10 in a top view from above. The entrainment members 4a and 4b are situated in the pre-fastening state VB.
[0092] A view from below corresponding to FIG. 10 is illustrated in FIG. 11.
[0093] The two extension guides 3a and 3b as well as the two entrainment members 4a and 4b are illustrated in FIG. 12 in a top view from above, wherein the entrainment member 4a is situated in the fastening state B, while the second entrainment member 4b is still situated in the pre-fastening state VB.
[0094] A view from below corresponding to FIG. 12 is illustrated in FIG. 13.
[0095] FIG. 14 shows a first extension guide 3a together with an entrainment member 4a in a view from below. The vertical cross section plane, which results in the cross section A-A, is illustrated and is running through the first fastening device 8.
[0096] The cross section A-A corresponding to FIG. 14 is illustrated in FIG. 15. In the detail illustrated on the right side the cross section A-A in the region of the fastening device is illustrated in a zoomed manner. It is visible that the pin-receiving element 10which corresponds to the part 8bis embodied in the mounting element 28 of the carcass rail 17. In particular, the bearing region 14 of this pin-receiving element 19 is illustrated. The bearing region 14 has a minimal clear width W.sub.14 parallel to the plate plane P. In the shown detail also the pin axis Z of the pin 9 is illustrated. The pin 9 is formed integrally with the base plate 13 of the entrainment member 4a. The base plate 13, in turn, directly contacts the guiding part 27 of the carcass rail 17. In addition, the shortest straight connection line V1 is illustrated in this detail, this connection line V1 is running from the flattened area F1 of the lateral surface F of the pin 9 through the pin axis Z till the oppositely arranged flattened area F2 of the lateral surface F of the pin 9. This connection line V1 is shorter than the clear width W.sub.14. However, this connection line V1 is almost as long as the clear width W.sub.11 on the bottleneck E of the insertion channel. Thus, the pin 9 exactly fits through the clear width W.sub.11.
[0097] FIG. 16 shows a first extension guide 3a together with an entrainment member 4a in a view from below. The vertical cross section plane, which results in the cross section C-C, is illustrated and isin another direction as in FIG. 14running through the first fastening device 8.
[0098] The cross section C-C corresponding to FIG. 16 is illustrated in FIG. 17. In the detail illustrated on the right side the cross section C-C in the region of the fastening device 8 is illustrated in a zoomed manner. The shortest straight connection line V2 is illustrated which is running from the convex area F3 of the lateral surface F of the pin 9 through the pin axis Z till the oppositely arranged convex area F4 of the lateral surface F of the pin 9. This connection line V2 is almost as long as the minimal clear width W.sub.14 in the bearing region 14.
[0099] An entrainment member 4a of a second, alternative exemplary embodiment is illustrated in perspective in FIG. 18. Here, only the base plate 13 of the entrainment member 4a is illustrated. The entrainment projection 7 is not illustrated. In this variant, the part 8a of the first fastening device 8 arranged or formed on the entrainment member 4a is embodied as pin-receiving element 10. Also, the part 12a of the second fastening device 12 arranged or formed on the entrainment member 4a is embodied as pin-receiving element 10. In this illustration the minimal clear width W11 in the insertion channel 11 is visible particularly well. The two pin-receiving elements 10 are formed mirror-symmetrically to each other in the base plate 13.
[0100] Only an angular mounting element 28 of the carcass rail 17 is illustrated in FIG. 19. The part 8b of the first fastening device 8 is arranged on this mounting element 28. The part 8b is embodied as pin 9. This pin 9 is formed integrally with the mounting element 28. In the detail shown left it is illustrated that the lateral surface F of this pin 9 comprises two flattened areas F1 and F2 and two convex areas F3 and F4. In addition, it is visible that the lateral surface F deviates from the shape of a circle in a cross section which is oriented right-angled to the pin axis Z. This cross section could also be formeddifferent to the illustratione. g. polygonal or oval.
[0101] FIG. 20 shows a first extension guide 3a together with an entrainment member 4a in a view from below, wherein the second exemplary embodiment of the fastening device 8 is illustrated. The vertical cross section plane, which results in the cross section D-D, is illustrated and is running through the first fastening device 8.
[0102] The pin 9 formed on the mounting element 28 is visible in the cross section D-D of the FIG. 21 and in the detail illustrated on the right side, wherein in the fastening state B the pin 9 at least partially contacts the recess edge of the pin-receiving element 10 in the bearing region 14.
LIST OF REFERENCE SIGNS
[0103] 1 arrangement [0104] 2 movable furniture part [0105] 3a first extension guide [0106] 3b second extension guide [0107] 4a entrainment member [0108] 4b second entrainment member [0109] 5 drive device [0110] 5a first drive device [0111] 5b second drive device [0112] 6 furniture carcass [0113] 7 entrainment projection [0114] 8 first fastening device [0115] 8a part of the first fastening device arranged on the entrainment member [0116] 8b part of the first fastening davice arranged on the extension guide [0117] 9 pin [0118] 10 pin-receiving element [0119] 11 insertion channel [0120] 12 second fastening device [0121] 12a part of the second fastening device arranged on the entrainment member [0122] 13 base plate [0123] 14 bearing region [0124] 15 threading region [0125] 16 clamping element [0126] 17 carcass rail [0127] 18 drawer rail [0128] 19 item of furniture [0129] 20 front panel [0130] 21 drawer back wall [0131] 22 drawer side walls [0132] 23 drawer bottom [0133] 24 synchronizing device [0134] 25 mounting plate [0135] 26 container rail [0136] 27 guiding part [0137] 28 mounting elements [0138] 29 clamping element counter piece [0139] L longitudinal extension of the extension guide [0140] E bottleneck [0141] P plate plane [0142] M assembly condition [0143] S plane of symmetry [0144] S1 first symmetry area [0145] S2 second symmetry area [0146] B fastening state [0147] Z pin axis [0148] F lateral surface [0149] F1, F2 flattened areas [0150] F3, F4 convex areas [0151] V1 shortest straight connection line between the flattened areas [0152] V2 shortest straight connection line between the convex areas [0153] W.sub.11 minimal clear width in the insertion channel [0154] W.sub.14 minimal clear width in the bearing region [0155] SS closed position [0156] OS open position [0157] VB pre-fastening state [0158] ZW intermediate position
