Arrangement consisting of a pull-out guide and a driver

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 axis 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 guiding a movable furniture part; an entrainment member to be driven by a drive device for moving the movable furniture part in relation to a furniture carcass, wherein the entrainment member comprises an entrainment projection to be actively connected to the drive device; and a first fastening device including a first part arranged on the entrainment member and a second part arranged on the first extension guide, the first fastening device being configured to fasten the entrainment member to the first extension guide, wherein a first one of the first part and the second part of the first fastening device is a pin and a second one of the first part part and the second part is a pin-receiving element corresponding to the pin, wherein the pin is positioned obliquely to a longitudinal axis of the first extension guide and the pin receiving element comprises an insertion channel for receiving the pin, the insertion channel comprising a bottleneck, wherein the arrangement further includes a second fastening device including a first part arranged on the entrainment member, the first part being a pin or a pin-receiving element, the first part of the second fastening device being configured to fasten the entrainment member to a second extension guide laterally reversed in relation to the first extension guide, wherein the first part of the first fastening device arranged on the entrainment member is oriented so as to be laterally reversed in relation to the first part of the second fastening device arranged on the entrainment member, wherein the pin comprises a central pin axis and a lateral surface formed around the pin axis and which fully encloses the pin axis in a radial direction.

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 extends 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 an 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 first part of the first fastening device arranged on the entrainment member and the first part of the second fastening device arranged on the entrainment member each are arranged on a side of the central plane of symmetry laterally reversed to each other.

7. The arrangement according to claim 5, wherein the central plane of symmetry leads through the entrainment projection.

8. The arrangement according to claim 5, wherein the central 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 first symmetry area and the second symmetry area of the entrainment member are laterally reversed relative to each other.

10. The arrangement according to claim 1, wherein, in a fastening state of the arrangement, the pin rests on the pin-receiving element.

11. The arrangement according to claim 1, wherein, in an assembly condition of the arrangement, the pin projects vertically from the entrainment member or from the first extension guide.

12. The arrangement according to claim 1, wherein the central pin axis is oriented at a right angle with respect to the longitudinal axis of the first extension guide.

13. The arrangement according to claim 1, wherein the lateral surface deviates from a circular shape in a cross section which is right-angled to the pin axis.

14. The arrangement according to claim 13, wherein, in the cross section right-angled to the pin axis, the lateral surface comprises two flattened areas on radially opposing sides and two convex areas on radially opposing sides.

15. The arrangement according to claim 14, wherein the shortest straight connection line leading through the pin axis between the flattened areas is shorter than the shortest straight connection line leading through the pin axis between the convex areas.

16. The arrangement according to claim 1, wherein the pin-receiving element is formed in the entrainment member or in the first extension guide, and a recess edge of the pin-receiving element is on the entrainment member or on the first extension guide.

17. The arrangement according to claim 1, wherein the pin-receiving element comprises a bearing region for the pin, the bearing region being separate from the insertion channel.

18. The arrangement according to claim 1, wherein the insertion channel comprises a broader nozzle-shaped threading region adjacent to the bottleneck.

19. The arrangement according to claim 1, wherein the pin is configured to pass the bottleneck of the pin-receiving element during a mounting movement only when the entrainment member is positioned obliquely relative to the longitudinal extension of the first extension guide.

20. The arrangement according to claim 1, wherein the first part of the first fastening device and the first part of the second fastening device are each a pin, and the pin-receiving element is arranged on the first extension guide.

21. The arrangement according to claim 1, wherein only one pin or one pin-receiving element is arranged on the first extension guide.

22. The arrangement according to claim 1, wherein in an assembly condition of the arrangement, the first part of the second fastening device is distanced from the second part of the first fastening device.

23. The arrangement according to claim 1, wherein the entrainment member comprises a tongue-shaped clamping element separate from the first and second parts of the first and second fastening devices, the clamping element being connected to the extension guide in an assembly condition.

24. The arrangement according to claim 23, wherein a plane of symmetry runs centrally through the clamping element.

25. The arrangement according to claim 1, wherein the first extension guide comprises a carcass rail and a drawer rail movable relative to the carcass rail.

26. The arrangement according to claim 25, wherein the second part of the first fastening device arranged on the first extension guide is on the carcass rail.

27. The arrangement according to claim 26, wherein the second part of the first fastening device arranged on the carcass rail is formed integrally with the carcass rail so as to be formed into the carcass rail.

28. The arrangement according to claim 1, further comprising the second extension guide laterally reversed relative to the first extension guide.

29. The arrangement according to claim 28, wherein the entrainment member is a first entrainment member, the arrangement further comprising a second entrainment member to be attached to the second extension guide, the second entrainment member being formed identically to the first entrainment member associated with the first extension guide.

30. The arrangement according to claim 28, wherein the drive device is a first drive device associated with the first extension guide, further comprising a second drive device associated with the second extension guide.

31. The arrangement according to claim 1, further comprising a drive device for moving the movable furniture part relative to the furniture carcass, wherein the drive device is to be actively connected to the entrainment member.

32. An item of furniture comprising a furniture carcass, a movable furniture part, and the arrangement according to claim 1.

33. The item of furniture according to claim 32, wherein the arrangement comprises two drive devices, wherein a first one of the two drive devices is associated with the first extension guide and with the entrainment member, and a second one of the two drive devices is associated with the second extension guide and with the second entrainment member.

34. The item of furniture according to claim 33, wherein, in a closed position of the movable furniture part, the first one of the drive devices rests on the entrainment member and the second one of the drive device rests on the second entrainment member.

35. A method for fastening the entrainment member of the arrangement according to claim 1 to the first extension guide, comprising bringing the entrainment member from a pre-fastening state, in which the entrainment member is positioned obliquely relative to the longitudinal axis of the first extension guide, into a fastening state with the first extension guide, the bringing of the entrainment member into a fastening state being performed by moving the pin through the bottleneck of the insertion channel and subsequently swivelling around the pin of the first fastening device.

36. The method according to claim 35, wherein the entrainment member is a first entrainment member, the method further comprising bringing a second entrainment member formed identically to the first entrainment member from a pre-fastening state, in which the second entrainment member is positioned obliquely relative to the longitudinal axis of the second extension guide, into a fastening state with the second extension guide by the first part of the second fastening device arranged on the second entrainment member and by the second part of the first fastening device arranged on the second extension guide, the bringing of the second entrainment member into the fastening state being carried out by moving the pin through the bottleneck of the insertion channel and subsequently swivelling around the pin of the first fastening device.

37. An arrangement comprising: a first extension guide for guiding a movable furniture part; an entrainment member to be driven by a drive device for moving the movable furniture part in relation to a furniture carcass, wherein the entrainment member comprises an entrainment projection to be actively connected to the drive device; and a first fastening device including a first part arranged on the entrainment member and a second part arranged on the first extension guide, the first fastening device being configured to fasten the entrainment member to the first extension guide, wherein a first one of the first part and the second part of the first fastening device is a pin and a second one of the first part part and the second part is a pin-receiving element corresponding to the pin, wherein the pin is positioned obliquely to a longitudinal axis of the first extension guide and the pin receiving element comprises an insertion channel for receiving the pin, the insertion channel comprising a bottleneck, wherein the arrangement further includes a second fastening device including a first part arranged on the entrainment member, the first part being a pin or a pin-receiving element, the first part of the second fastening device being configured to fasten the entrainment member to a second extension guide laterally reversed in relation to the first extension guide, and wherein the first part of the first fastening device arranged on the entrainment member is oriented so as to be laterally reversed in relation to the first part of the second fastening device arranged on the entrainment member, wherein the pin-receiving element comprises a bearing region for the pin, the bearing region being separate from the insertion channel, wherein a minimal clear width in an area of the bottleneck of the insertion channel is smaller than a minimal clear width in the bearing region.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) 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:

(2) FIG. 1 shows in perspective an item of furniture with two drawers,

(3) FIG. 2 shows a schematic cross section through an item furniture with a drawer, two extension guides, two entrainment members and two drive devices,

(4) FIG. 3 shows in perspective an exploded view of an arrangement comprising an extension guide, an entrainment member and a drive device,

(5) FIG. 4 shows the arrangement according to FIG. 3 in a fastening state,

(6) FIG. 5 shows the arrangement according to FIG. 4 from below,

(7) FIGS. 6 to 9 show the fastening movement of the entrainment member on an extension guide in perspective from below together with details,

(8) FIG. 10 shows extension guides on opposing sides from above with entrainment member in the pre-fastening state,

(9) FIG. 11 shows the FIG. 10 from below,

(10) 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,

(11) FIG. 13 shows the FIG. 12 from below,

(12) FIG. 14 shows the arrangement together with the first fastening device from below,

(13) FIG. 15 shows the cross section A-A from FIG. 14 in a detail with the first fastening device,

(14) FIG. 16 shows the arrangement together with the first fastening device with a differently oriented cross section plane,

(15) FIG. 17 shows the cross section C-C from FIG. 16 with a detail of the first fastening device,

(16) FIG. 18 shows in perspective an entrainment member of a second exemplary embodiment,

(17) FIG. 19 shows in perspective a part of the carcass rail of a second exemplary embodiment with a detail of the pin,

(18) FIG. 20 shows an arrangement together with the first fastening device of the second exemplary embodiment from below and

(19) 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

(20) A perspective view of an item of furniture 19 with—in this case—two 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.

(21) 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 a synchronizing device 24 (illustrated in a dashed line). One entrainment member 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 first entrainment member 4a is fastened to the second part 8b of the first fastening device 8 on the first extension guide 3a via the first part 8a of the first fastening device 8 arranged on the entrainment member 4a. The second entrainment member 4b is fastened to the second part 8b of the second fastening device 12 arranged on the second extension guide 3b via the first part 12a of the second fastening device 12 arranged on the second entrainment member 4b. In this case, thus, the second 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 laterally reversed relative to each other, and 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.

(22) 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 17 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 axis 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.

(23) These two parts 8a and 12a are arranged, preferably in one piece, on the base plate 13 of the entrainment member 4 in a laterally reversed manner. In addition, the clamping element 16 is arranged on the base plate 13. The base plate 13 of the entrainment member 4a extends 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 axis 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 axis L of the first extension guide 3a and right-angled to the plate plane P.

(24) 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.

(25) 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 fastening 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 from (spaced apart from) the part 8b and, thus, in this case (or when using on this first extension guide 3a) functionless.

(26) 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 12a of the second fastening device 12 arranged on the entrainment member 4a is embodied as a pin 9. The part 8b of the first fastening device 8 arranged on the first extension guide 3a is embodied as a pin-receiving element 10.

(27) In FIG. 6 the entrainment member 4a is still situated in a distanced position in relation to (spaced apart from) the first extension guide 3a. It is visible that the pin-receiving element 10 (part 8b) is formed in the mounting element 28 of the carcass rail 17.

(28) 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 4a—compared to the fastening state B—is oriented obliquely to the longitudinal axis 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 linearly through the insertion channel 11 into the bearing region 14. Concretely, this insertion movement—when the entrainment member is positioned obliquely—is carried out substantially right-angled to the longitudinal axis L of the first extension guide 3a.

(29) An intermediate position ZW of the fastening movement is illustrated in FIG. 8. For that purpose, the pin 9 is quasi used as a swivelling axis. According to the detail bottom left, the pin 9 comprises a vertically oriented pin axis Z. The entrainment member 4a is swivelled counter-clockwise around this pin axis Z as 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 with respect to the bottleneck E. Thus, the two convex areas F3 and F4 of the lateral surface F at least partially abut 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 17.

(30) 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 axis 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 provided in the 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 axis L of the first extension guide 3a. In the detail bottom right, it can be seen that the clamping element 16 is contacting the clamping element counter piece 29. Preferably, a friction-type connection is established between these two components.

(31) 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.

(32) A view from below corresponding to FIG. 10 is illustrated in FIG. 11.

(33) 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.

(34) A view from below corresponding to FIG. 12 is illustrated in FIG. 13.

(35) 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 runs through the first fastening device 8.

(36) 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 10—which corresponds to the part 8b—is embodied in the mounting element 28 of the carcass rail 17. In particular, the bearing region 14 of this pin-receiving element 10 is illustrated. The bearing region 14 has a minimal clear width W.sub.14 parallel to the plate plane P. In the shown detail, the pin axis Z of the pin 9 is also 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, and this connection line V1 runs from the flattened area F1 of the lateral surface F of the pin 9 through the pin axis Z to 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.

(37) 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 is—in another direction as in FIG. 14—running through the first fastening device 8.

(38) 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 to 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.

(39) 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.

(40) 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 formed—different to the illustration—e. g. polygonal or oval.

(41) 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.

(42) 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

(43) 1 arrangement 2 movable furniture part 3a first extension guide 3b second extension guide 4a entrainment member 4b second entrainment member 5 drive device 5a first drive device 5b second drive device 6 furniture carcass 7 entrainment projection 8 first fastening device 8a part of the first fastening device arranged on the entrainment member 8b part of the first fastening device arranged on the extension guide 9 pin 10 pin-receiving element 11 insertion channel 12 second fastening device 12a part of the second fastening device arranged on the entrainment member 13 base plate 14 bearing region 15 threading region 16 clamping element 17 carcass rail 18 drawer rail 19 item of furniture 20 front panel 21 drawer back wall 22 drawer side walls 23 drawer bottom 24 synchronizing device 25 mounting plate 26 container rail 27 guiding part 28 mounting elements 29 clamping element counter piece L longitudinal axis of the extension guide E bottleneck P plate plane M assembly condition S plane of symmetry S1 first symmetry area S2 second symmetry area B fastening state Z pin axis F lateral surface F1, F2 flattened areas F3, F4 convex areas V1 shortest straight connection line between the flattened areas V2 shortest straight connection line between the convex areas W.sub.11 minimal clear width in the insertion channel W.sub.14 minimal clear width in the bearing region SS closed position OS open position VB pre-fastening state ZW intermediate position