DEVICE FOR LATERALLY GUIDING THE UPPER END OF A PULL-OUT FURNITURE PART

Abstract

A device for laterally guiding the upper end of a pull-out furniture part (2), comprising a guide rail (4) that can be secured to the furniture body (1) and a rotary part (7) guided in parallel to the pull-out direction (8) by the guide rail (4). The rotary part (7) is pivotably mounted on a mounting part (6) that can be secured to the pull-out furniture part. The mounting part (6) can be moved from a pushed-in position into a pulled-out position via a movement path, wherein, in the pushed-in position of the mounting part (6), the rotary part (7) is in contact with a push-in end stop (13a) of the guide rail (4) and adopts a push-in rotary position, and in the pulled-out position of the mounting part (6), it is in contact with a pull-out end stop (14a) of the guide rail (4) and adopts a pulled-out rotary position, which is rotated about the axis of rotation (20) relative to the pushed-in rotary position. (FIG. 8)

Claims

1. A device for lateral guidance of the upper end of a pull-out furniture part (2), which can be pulled out from a position completely pushed into a furniture body (1) in a pull-out direction (8) to a position completely pulled out of the furniture body (1), comprising: a guide rail (4) which can be fastened to the furniture body (1) and the longitudinal extent of which is parallel to the pull-out direction (8); a rotary part (7) which is guided by the guide rail (4) parallel to the pull-out direction (8) and which is mounted on a mounting part (6) which can be fastened to the pull-out furniture part so as to be pivotable about a horizontal axis of rotation (20) lying at right angles to the pull-out direction (8), wherein the mounting part (6) is movable relative to the guide rail (4) from a push-in position, which can be occupied by the mounting part (6) in the fully push-in position of the pull-out furniture part (2), in the pull-out direction (8) via a displacement path up to a pull-out position which can be occupied by the pull-out furniture part (2) in the fully pull-out position, and wherein, in the push-in position of the mounting part (6), the rotary part (7) rests against a push-in end stop (13a) of the guide rail (4) and assumes a push-in rotational position relative to the mounting part (6) and, in the pull-out position of the mounting part (6), rests against a pull-out end stop (14a) of the guide rail (4) and assumes a pull-out rotational position relative to the mounting part (6), which is rotated about the axis of rotation (20) relative to the push-in rotational position.

2. The device according to claim 1, wherein, when the mounting part (6) is displaced, starting from the push-in position in the pull-out direction (8) over an initial section of the displacement path, the rotary part (7) is rotated about the axis of rotation (20) relative to the mounting part (6) by the interaction of the rotary part (7) with a first engagement element (13) of the guide rail (4) and, during the displacement of the mounting part (6) over a main section of the displacement movement following the engagement section, the rotational position of the rotary piece (7) about the axis of rotation (20) remains unchanged relative to the mounting part (6).

3. The device according to claim 2, wherein the rotation of the rotary part (7) is damped by a damper (23), when the mounting part (6) is displaced against the pull-out direction (8) over the initial section of the displacement path until the push-in position of the mounting part (6) is reached.

4. The device according to claim 1, wherein when the mounting part (6) is displaced in the pull-out direction (8) over an end section of the displacement path before reaching the pull-out position, the rotary part (7) is rotated about the axis of rotation (20) relative to the mounting part (6) by the interaction of the rotary part (7) with a second engagement element (14) of the guide rail (4).

5. The device according to claim 4, wherein the rotation of the rotary part (7) is damped by a damper (23) when the mounting part (6) is displaced in the pull-out direction (8) over the end section of the displacement path until the pull-out position of the mounting part (6) is reached.

6. The device according to claim 3, wherein the rotary part has a toothing (22b) which is coaxial with the axis of rotation (20) and which meshes with a toothing (23a) coupled to the damper (23).

7. The device according to claim 1, wherein the guide rail (4) has a downwardly open receiving space (9) which is limited by side legs (10, 11) and into which an engagement section (21) of the rotary part (7) projects.

8. The device according to claim 7, wherein the side legs (10, 11) project downward from a horizontal base bar (12) of the guide rail (4).

9. The device according to claim 1, wherein the push-in end stop (13a) is formed by a section of a lateral surface of a first engagement element (13) of the guide rail (4), which is designed as a bolt and engages in a link motion contour (21a) of the rotary part (7) when the mounting part (6) is displaced over the initial section of the displacement path.

10. The device according to claim 1, wherein the pull-out end stop (14a) is formed by a section of a lateral surface of a second engagement element (14) of the guide rail (4), which is designed as a bolt and engages in a link motion contour (21b) of the rotary part (7) when the mounting part (6) is displaced over the end section of the displacement path.

11. The device according to claim 3, wherein the damper (23) is designed as a rotation damper.

12. The device according to claim 5, wherein the damper (23) is designed as a rotation damper.

Description

[0040] An embodiment of the invention is explained below with reference to the figures. The device according to the invention serves to laterally guide the upper end of a furniture part 2 which can be pulled out of a furniture body 1 in a pull-out direction 8 and pushed in against the pull-out direction 8. The furniture shown is a tall cabinet. The pull-out furniture part 2 is guided by a single pull-out guide 3, which is arranged centrally below the pull-out furniture part 2, and can be pulled out between a fully pushed-in position, see FIG. 1, and a fully pulled-out position, see FIGS. 2 and 3. The pull-out guide 3 can be a differential pull-out, for example. Other types of pull-out guides can also be used, for example telescopic pull-outs.

[0041] The pull-out guide 3 preferably enables a full pull-out or an over-pull-out.

[0042] The device according to the invention can also be used with furniture other than tall cabinets. In particular, the use of a device according to the invention is expedient if the pull-out furniture part is only guided in a pull-out manner by a single, centrally arranged pull-out guide.

[0043] The device according to the invention has a guide rail 4, which is to be attached to the furniture body 1, in particular to the underside of a ceiling part of the furniture body 1.

[0044] The device according to the invention also has a unit 5, which is to be attached to the pull-out furniture part. This unit 5 comprises a mounting part 6, which is used to attach it to the pull-out furniture part 2, and a rotary part 7, which is guided by the guide rail 4 so as to be displaceable parallel to the pull-out direction 8, which is parallel to the longitudinal pull-out of the guide rail 4. In relation to the opposite horizontal directions, which are at right angles to the pull-out direction 8, the rotary part 7 is supported by the guide rail 4 against displacement in these directions (apart from bearing play).

[0045] The rotary part 7 engages from below in a downwardly open receiving space 9 of the guide rail 4. The receiving space is bounded in the opposite horizontal directions, which are at right angles to the pull-out direction 8, by side legs 10, 11 of the guide rail 4. These side legs 10, 11 project downwards from a horizontal base bar 12 of the guide rail 4. These side legs 10, 11 thus support the rotary part 7 against displacement in the horizontal directions at right angles to the pull-out direction 8. The guide rail 4 has a U-shaped cross-section.

[0046] In the region of its rear end relative to the pull-out direction 8, the guide rail 4 has a first engagement element 13, which in the embodiment example is formed by a bolt extending between the side legs 10, 11 horizontally and at right angles to the pull-out direction 8. In the region of its front end relative to the pull-out direction 8, the guide rail 4 has a second engagement element 14, which in the embodiment example is formed by a bolt extending horizontally and at right angles to the pull-out direction 8.

[0047] As already mentioned, the mounting part 6 is mounted in the area of the rear end of the pull-out furniture part 2 in relation to the pull-out direction 8, for example in the area of the upper end of an upper rear wall part 2a of the pull-out furniture part. This upper rear wall part 2a has a recess extending from the upper edge, into which the mounting part 6 is inserted. The mounting part 6 has a recess 15 on its underside, so that the lower section has a U-shape. This is used to attach the mounting part 6 to the lower edge of the recess in the back panel part 2a and to screw it to the back panel part 2a in this area. Other types of attachment to the rear wall part 2a are also possible.

[0048] In the embodiment example of the pull-out furniture part shown, the upper rear panel part 2a can be adjusted in height relative to a lower rear panel part 2b of the pull-out furniture part and can be fixed in the set position by means of screws.

[0049] The rotary part 7 is pivoted (=limited rotation) by the mounting part 6 about a horizontal axis of rotation, which is at right angles to the pull-out direction 8. The rotary part 7 can be rotated from a push-in rotational position in a pull-out rotational direction to a pull-out rotational position. In the pull-out rotational position, further rotation in the pull-out rotational direction is blocked; in the push-in rotational position, further rotation against the pull-out rotational direction is blocked.

[0050] The area over which the rotary part 7 engages in the receiving space 9 of the guide rail 4 represents an engagement section 21 of the rotary part 7. On the side opposite the engagement section 21, the rotary part 7 has a web-like extension 22, which lies in a vertical plane parallel to the pull-out direction 8. This extension 22 projects into a slot 16 of the mounting part 6. A passage opening 17 through the mounting part 6 passes through this slot 16. This passage opening 17 is coaxial with a passage opening 22a through the extension 22. A pin 19 forming the axis of rotation 20 passes through the passage opening 17 of the mounting part 6 and the passage opening 22a of the extension. The passage openings 17, 22a are thus coaxial with the axis of rotation 20.

[0051] The extension 22 has a toothing 22b on its narrow side facing away from the engagement section 21, which extends over an arc of a circle. When the rotary part 7 rotates around the axis of rotation 20, the toothing 22b rotates around the axis of rotation 20.

[0052] A damper 23, which is designed as a rotary damper, is inserted into a recess 18 of the mounting part 6. This has a gear wheel arranged on a shaft with a toothing 23a. This engages with the toothing 22b of the extension 22. When the rotary part 7 rotates about the axis of rotation 20, the shaft of the damper 23 is thus rotated, whereby this rotation takes place against the resistance applied by the damper.

[0053] In the embodiment example, the damper 23 has a protruding tab 23b, with which it is screwed to the pin 19 with a screw 25.

[0054] The engagement section 21 of the rotary part 7 is delimited by projections 24, which protrude on both sides in directions at right angles to the pull-out direction 8. These projections 24 serve to ensure a central position of the rotary part 7 in a main section of the displacement path, as will be explained in more detail below.

[0055] In the engagement section 21 of the rotary part 7, first and second link motion contour 21a, 21b are formed at the rear and front (in relation to the pull-out direction 8), which interact with the first and second engagement elements 13, 14 of the guide rail 4 formed by the bolts, as also explained below.

[0056] The mode of operation is explained below, in particular with reference to FIGS. 15-22. The mounting part 6 can be moved between a push-in position (FIG. 15) and a pull-out position (FIG. 20) by means of a displacement movement. In the push-in position, the pull-out furniture part 2 is in its fully push-in position. In the pull-out position of the mounting part 6, the pull-out furniture part 2 is in its fully pull-out position.

[0057] The mounting part 6 is pulled out from the push-in position to the pull-out position in a pull-out direction 8, and pushed in against the pull-out direction 8.

[0058] In the insertion position of the mounting part 6, the rotary part 7 rests against an insertion end stop 13a of the guide rail 4, see FIG. 15. This is formed by a section of the lateral surface of the first engagement element 13, which is designed as a bolt. The rotary part 7 is in the pushed-in rotational position relative to the mounting part 6 with respect to the rotation about the axis of rotation 20. The first engagement element 13 in the form of a bolt is inserted into the slotted track 21a of the rotating piece 7 and rests with its lateral surface forming the pushed-in end stop 13a against the wall of the rotary part 7 delimiting the link motion contour 21a. If a force directed against the pull-out direction 8 acts on the mounting part 6 in the pushed-in position of the mounting part 6, the bolt exerts a torque on the rotary part 7 about the axis of rotation 20, which acts against the pull-out direction of rotation. However, any further rotation of the rotary part 7 against the pull-out direction rotation is blocked. In the push-in position of the mounting part 6, a displacement of the mounting part 6 against the pull-out direction 8 is therefore blocked.

[0059] In the pull-out position of the mounting part 6, the rotary part rests against a pull-out end stop 14a of the guide rail 4. This is formed by a section of the lateral surface of the second engagement element 14, which is designed as a bolt, see FIG. 16. The rotary part 7 is located in the pull-out rotary position with respect to a rotation about the axis of rotation 20 relative to the mounting part 6. The second engagement element 14, which is designed as a bolt, is retracted into the link motion contour 21b of the rotary part 7 and rests with its lateral surface forming the pull-out end stop 14a against the wall of the rotary part 7 delimiting the link motion contour 21b. If, in the pull-out position of the mounting part 6, a force directed in the pull-out direction 8 acts on the mounting part 6, the bolt exerts a torque on the rotary part 7 about the axis of rotation 20, which acts in the pull-out direction of rotation. However, any further rotation of the rotary part 7 in the direction of pull-out rotation is blocked. In the pull-out position of the mounting part 6, a displacement of the mounting part 6 in the pull-out direction is thus blocked.

[0060] When the mounting part 6 is pulled out from the push-in position in the pull-out direction 8, the rotary part 7 is rotated by the interaction of the first engagement element 13 with the link motion contour 21a over an initial section of the displacement path from the push-in rotational position in the direction of a central rotational position, see the movement sequence shown in FIGS. 15 to 17. In the position shown in FIG. 17, the first engagement element 13 is just disengaged from the rotary part 7.

[0061] When the mounting part 6 is further pulled out in the pull-out direction 8, the rotary part 7 remains in this middle rotational position over a main section of the displacement path until the mounting part 6 reaches an end section of the displacement path. FIG. 18 shows the position of the mounting part 6 in which the second engagement element 14 has already retracted somewhat into the link motion contour 21b of the rotary part 7 and the rotary part 7 just makes contact with the wall delimiting the link motion contour 21b on the second engagement element 14. During the further displacement of the mounting part 6 in the pull-out direction 8, the second engagement element 14 moves further into the link motion contour 21b of the rotary part 7, whereby it rotates the rotary part 7 about the axis of rotation 20 until the pull-out position of the mounting part 6 is reached, see FIG. 20. FIG. 19 shows a position of the mounting part 6 in a central area of the end section of the displacement path.

[0062] When the mounting part 6 is pushed in from the pull-out position to the push-in position, the movement sequence is essentially reversed. FIG. 21 shows the position of the mounting part 6 in which the second engagement element 14 is just disengaged from the rotary part 7. FIG. 22 shows the position of the mounting part 22, in which the rotary part 7 has just come into engagement with the first engagement element 13.

[0063] The projections 24 of the rotary part 7 serve to ensure the central rotational position of the rotary part 7 over the main section of the displacement path. These interact with the downward-facing narrow sides of the side legs 10, 11 and thus prevent rotation of the rotary part 7, apart from any play.

[0064] Over the initial section of the displacement path, the projections 24 at the rear with respect to the pull-out direction 8 are out of engagement with the side legs 10, 11 of the guide rail, so that when the mounting part 6 is pushed in, rotation of the rotary part 7 from the central rotational position to the push-in rotational position is possible. Over the area of the end section of the displacement path, the front projections 24 in relation to the pull-out direction 8 are out of engagement with the side legs 10, 11 of the guide rail 4, so that when the mounting part 6 is extracted, the rotation of the rotary part 7 from the central rotational position to the pull-out rotational position is possible.

[0065] By rotating the rotary part 7 between the push-in rotational position and the pull-out rotational position, the displacement path is extended, which allows the mounting part 6 to be moved relative to the guide rail 4.

[0066] The rotation of the rotary part 7 around the axis of rotation 20 is damped by the damper 23. Therefore, when the pull-out furniture part is pulled out, the braking of the pull-out furniture part (in the area of its upper end) is damped before it reaches its fully pull-out position. When the pull-out furniture part is pushed in, the pull-out furniture part is braked (in the area of its upper end) before reaching the fully push-in position.

[0067] In principle, it would also be conceivable and possible to rotate the rotary part only via the initial section of the displacement path or only via the end section of the displacement path relative to the mounting part. Rotation both over the initial section and over the end section of the displacement path has the particular advantage that both the end stop when pulling out and the end stop when pushing in are damped by means of the rotation damper 23.

[0068] The link motion contours 21a, 21b are curved in the embodiment example, as is preferred. This makes it possible to adjust the course of the damping force when pulling out over the end section of the displacement path and when pushing in over the initial section of the displacement path.

[0069] In the embodiment example, the link motion contour 21b has an internal end section which, in the pull-out rotational position of the rotary part 7, forms an upward bulge in which the bolt forming the second engagement element is located in the pull-out position, see FIG. 20. When the device according to the invention is mounted, the rear wall part 2a with the device according to the invention mounted thereon can thus be attached to the guide rail 4 in the pull-out position of the mounting part 6. In this position, the rear wall part 2a can be connected to the rear wall part 2b. This ensures the correct height of the rear wall part 2a.

[0070] Various further modifications of the embodiments shown are conceivable and possible without departing from the scope of the invention as defined in the claims. For example, it would be conceivable and possible to form the engagement elements 13 and/or 14 of the guide rail as parts with link motion contours, for example made of plastic, which are inserted into the profile of the guide rail, in particular consisting of metal, and which interact with at least one or two bolts arranged on the rotary part 7.

[0071] In principle, it would also be conceivable and possible to design the guide rail with a cross-section other than U-shaped, for example a V-shaped cross-section.

[0072] The damper 23 could also be secured in the mounting part 6 in another way instead of using a screw 25, for example by snapping it into place. It could, for example, be secured against rotation by at least one rib that runs parallel to the axis of rotation and engages in a groove in the wall of the recess 18. The pin 19 forming the axis of rotation could be snapped into the passage opening 17.

KEY TO THE REFERENCE NUMBERS

[0073] 1 Furniture body [0074] 2 pull-out furniture part [0075] 2a Back panel part [0076] 2b Back panel part [0077] 3 Pull-out guide [0078] 4 Guide rail [0079] 5 Unit [0080] 6 Mounting part [0081] 7 Rotary part [0082] 8 Pull-out direction [0083] 9 Receiving space [0084] 10 Side leg [0085] 11 Side leg [0086] 12 Base bar [0087] 13 first engagement element [0088] 13a Push-in end stop [0089] 14 second engagement element [0090] 14a Pull-out end stop [0091] 15 Recess [0092] 16 Slot [0093] 17 Passage opening [0094] 18 Recess [0095] 19 Pin [0096] 20 Axis of rotation [0097] 21 Engagement section [0098] 21a Link motion contour [0099] 21b Link motion contour [0100] 22 Extension [0101] 22a Passage opening [0102] 22b Toothing [0103] 23 Damper [0104] 23a Toothing [0105] 23b Tab [0106] 24 Projection [0107] 25 Screw