Running part for guiding a furniture part in one guide direction via a guide rail and furniture fitting

Abstract

Running part (14) for a sliding door fitting, for guiding a furniture part along a guide rail (10) in a guide direction (16), comprising: - a holder (78) which can be firmly connected to the furniture part (4) to be guided, and - a bolt (80) held on the holder (78) at an angle to the guide direction (16) so as to be displaceable between a guide position and a mounting position, which bolt is guided on the guide rail (10) in the guide position and is removable from the guide rail (10) in the mounting position, - a return element, by means of which the bolt (80) on the holder (78) is pretensioned into the guide position, wherein a blocking element (84) is provided, by means of which a displacement of the bolt (80) relative to the holder (78) in the guide position can be blocked, characterized in that a nose (101) is formed on the bolt (80) which can be placed on a rotary handle (96) as a stop when the bolt (80) is displaced in the direction (22) of the locking position (124) in a closed position of the blocking element (84).

Description

[0001] The invention relates to a running part for guiding a furniture part in a guide direction via a guide rail according to the preamble of claim 1, a furniture fitting with the running part and a piece of furniture with the furniture fitting.

[0002] DE 43 30 152 A1 discloses a furniture component in the form of a sliding partition with uprights on the underside. Hooks are attached to the uprights, which engage in an elastically mounted guide piece with sliding grooves. Due to the elastic mounting of the guide piece, the engagement between the hooks and the sliding grooves can be released by lifting the guide piece.

[0003] DE 202 16 481 U1 discloses a sliding door that is guided by two runners in two guide rails of a piece of furniture. The first of the two runners is spring-mounted on the furniture part, while the second runner's position relative to the furniture part is adjustable. If the second runner's position relative to the furniture part is adjusted, the first runner's position relative to the furniture part automatically adjusts thanks to its spring-mounted mounting.

[0004] US Pat. No. 58 453 63 A discloses a furniture component in the form of a sliding door, which is guided on a guide rail via a runner. The runner is spring-mounted on the furniture component. The springs counteract any load exerted by the furniture component on the runner and reliably press the runner onto the guide rail, even if the load is too small. This effectively prevents the runner from slipping off the guide rail.

[0005] DE 20 2009 004 790 U1 discloses a guide fitting for a sliding door, in which a spring-loaded sliding element is slidably mounted in a guide housing. The sliding element can be locked against the force of the spring in a disassembled position to a locking element of the guide housing. The spring preloads the sliding element into the engaged position.

[0006] US 4,805,262 A discloses a sliding door runner in which a roller is displaceable on a bracket along a curved guide on a housing. For this purpose, the bracket is connected to an adjustment mechanism by means of which the bracket can be displaced along the curved guide to engage a rail.

[0007] JP H09-4313 A discloses a running part for a sliding door with an adjusting mechanism for adjusting the position of a roller relative to a running part.

[0008] US 4 014 377 A discloses a piece of furniture with several sliding doors, each of which can be moved along guide rails via upper and lower runners.

[0009] The object of the invention is to improve the known furniture or furniture parts and to simplify assembly.

[0010] The object is achieved by the features of the independent claims. Preferred embodiments are the subject of the dependent claims.

[0011] According to one aspect of the invention, a running part for guiding a furniture part in a guide direction over a guide rail comprises a holder that can be firmly connected to the furniture part to be guided, and a latch that is held on the holder so that it can be displaced at an angle to the guide direction between a guide position and an assembly position, and that is guided along the guide rail in the guide position. The running parts on a furniture part are intended to ensure reliable guidance of the furniture part over the guide rails.

[0012] The bracket can also be attached to the furniture part together with the other runner before being inserted into the corresponding guide rail. Once the other runner is inserted into its guide rail, the latch of the specified runner can be pushed into its mounting position, allowing the sliding door to pivot and the latch to be inserted into a groove on the guide rail. The pre-assembled latch can be felt by the installer during assembly of the furniture part, which means it does not need to be positioned in the installer's field of vision during installation.

[0013] Within the scope of the specified running part, an angular, preferably perpendicular displacement to the guide direction can comprise any desired curve, such as a straight curve or a circular arc curve.

[0014] The running part includes a return element that preloads the bolt on the holder into a guide position. This presets the guide position as the default position for the bolt. The bolt then only needs to be moved briefly by the installer during assembly from its guide position to the assembly position. After assembly, it automatically returns to the locking position once the installer releases it.

[0015] The barrel also features a locking element that can be used to prevent the bolt from moving from the guide position. This prevents accidental disassembly and, even if the return element fails, prevents the bolt from moving from the guide position to the assembly position.

[0016] The blocking element can, in principle, operate based on any connection principle, such as a force fit. Particularly preferably, however, the blocking element comprises a first form-locking element on the latch and a second form-locking element on the holder, complementary to the first form-locking element, which are designed to block the displacement of the latch against the locking position via a form-locking connection. The form-locking element arranged on the holder is preferably designed with a special geometry to ensure an even better form-locking connection. The form-locking connection can be opened and closed again at any time, allowing the furniture part to be easily removed from the guide rails, for example, if it requires maintenance.

[0017] In a preferred embodiment of the specified running part, the first and / or second form-locking element is mounted so as to be movable at an angle to the direction of displacement of the bolt, preferably at right angles, whereby the arbitrary opening and closing of the form-lock is implemented in a particularly simple manner.

[0018] In one embodiment of the specified running part, positive locking acts both in the guide direction and in the direction of the locking position. In this way, the blocking element not only counteracts movement of the bolt against the locking position but also counteracts movement of the blocking element itself. This movement of the blocking element could be caused by forces acting on the blocking element in the guide direction, such as the aforementioned vibrations when a furniture part in the form of a sliding door strikes a barrier. By preventing movement of the blocking element, release of the bolt is effectively prevented.

[0019] In yet another embodiment of the specified running part, the first and second positive-locking elements are designed as locking elements. This allows the blocking element to be actuated without the need for tools.

[0020] In an additional embodiment, the specified running part comprises a guide element for guiding the bolt in a displacement direction of the bolt in a contact area with the guide rail.

[0021] According to a further aspect of the invention, a furniture fitting, in particular for a sliding door, is provided, in which a base body is guided between a first guide rail and a second guide rail, wherein a first running part connected to the base body for guiding the base body on the first guide rail, and a second running part fastened to the base body at a distance from the first running part for guiding the base body on the second guide rail, are provided.

[0022] In another embodiment, the specified furniture part comprises a limiting element arranged on the first guide rail for limiting movement of the first running part in the guide direction, thereby ensuring that the furniture part cannot move out of the guide provided by the guide rails. The limiting element can be designed to be at least partially deformable, preferably elastically deformable, to reduce vibrations in the guide direction.

[0023] According to a further aspect of the invention, a piece of furniture comprises a movable furniture part which is movably mounted via a furniture fitting according to the invention.

[0024] The above-described properties, features and advantages of this invention will be explained in more detail in connection with the following description of the embodiments, wherein: Fig. 1 a perspective view of a piece of furniture with a sliding door, Fig. 2 a perspective partial view of the sliding door from Fig. 1 with a first running part, Fig. 3 an exploded view of the first barrel part Fig. 2, Fig. 4 a perspective partial view of the first barrel part of Fig. 2, Fig. 5 a perspective view of a boundary element, Fig. 6 another perspective partial view of the sliding door from Fig. 1 with a second running part, Fig. 7 an exploded view of the second barrel part of Fig. 6, Fig. 8 is a perspective view of an alternative sliding door to which the second running part of Fig. 6 can be placed, Fig. 9 partial perspective views of a blocking element in the second running part of Fig. 6, and Fig. 10 is a partial perspective view of a part of the blocking element of Fig. Show 9.

[0025] In Fig. 1 shows a perspective view of a piece of furniture 2 with a sliding door 4 as a movable furniture part. The piece of furniture 2 is designed as a cupboard, but could be designed as any other piece of furniture. The piece of furniture 2 has a furniture body 6 that is open towards a front. In the area of ​​the front opening, a lower guide rail 8 is arranged on an underside of the furniture body 6, while an upper guide rail 10 is arranged on the upper side of the piece of furniture 2. Between these two guide rails 8, 10, the sliding door 4 is arranged via at least one Fig. 2 shown lower running part 12 and a Fig. 6 shown upper running part 14 is mounted guided in a guide direction 16.

[0026] The Fig. 2 shows a perspective partial view of the sliding door 4 from Fig. 1 with the lower runner 12. The lower guide rail 8 is fixed to the furniture body 6 with screws 18.

[0027] The lower runner 12 has a mounting bracket 20, which is attached to a door body 21 of the sliding door 4 via screws 18. A support element 24 is held on the mounting bracket 20 so as to be displaceable in a displacement direction 22 perpendicular to the guide direction 16. At one end of the support element 24, a lower roller 26 is rotatably mounted on the lower guide rail 8. When the sliding door 4 is moved in the guide direction 16, the lower roller 26 rolls over the lower guide rail 8.

[0028] The support element 24 is adjustable in height relative to the mounting bracket 20, for which purpose an adjusting screw 28 is screwed into an adjustment opening 30 in the mounting bracket 20, as can be seen from Fig. 3.

[0029] The mounting bracket 20 comprises on a base plate 34 three pins 36, each with a through-hole through which the Fig. 2 can be inserted. The pins 36 engage in elongated holes 44 on the support element 24 in order to mount the support element 24 displaceably relative to the mounting bracket 20 in the vertical displacement direction 22.

[0030] At the upper end of the mounting bracket 20 viewed in the direction of displacement 22, a holding element 38 is formed through which the adjusting screw 28 can be screwed.

[0031] In the present embodiment, the support element 24 is formed from a sheet metal part 40, the edge region of which is partially reinforced with a bead 42. Elongated holes 44 are formed in the sheet metal part 40. At the upper end of the sheet metal part 40, viewed in the direction of displacement 22, a counter-bearing element 46 is formed, against which the adjusting screw 28 rests in order to adjust the relative position between the mounting bracket 20 and the support element 24. Furthermore, an opening 48 is formed in the sheet metal part 40, into which an axle 50 for supporting the lower roller 26 is inserted. The lower roller 26 has a diameter 52.

[0032] Finally, on the lower side of the support element 24 viewed in the direction of displacement 22, a guide plate 54 is provided, to which a protective cap 56 is attached.

[0033] It will be Fig. 4, which is a partial perspective view of the first barrel part 12 of Fig. 2 on the lower guide rail 8.

[0034] The lower guide rail 8 has a guide slot 58 which opens into a rail interior 60. For a better representation of the rail interior 60, the lower guide rail 8 is Fig. 4 shown partially cut away. At the end of the guide rail 8 viewed in the guide direction 16, the rail interior 60 is closed by a limiting element 62, which forms a stop for the first running part 12.

[0035] The guide plate 54 of the support element 24, which is covered by the protective cap 56 (not shown in detail), engages in the rail interior 60 via the guide slot 58 and is guided therein as a plain bearing. An annular projection 64 formed on the outer circumference of the lower roller 26 is inserted and guided in the guide slot 58.

[0036] The Fig. The limiting element 62 shown in Figure 5 has a fastening section 66 and a stop section 68. The limiting element 62 is fixed to the fastening section 66 in the rail interior 60 by means of screws 70. The stop section 68 is elastically mounted to a small extent on the fastening section 66 via an elastic section 72.

[0037] The stop portion 68 has a receiving channel 74 extending in the guide direction 16, in which the guide plate 54 covered by the protective cap 56 can be received. This receiving channel 74 has a taper 76 transverse to the guide direction 16 in order to lock the guide plate 54 covered by the protective cap 56 in a closed position.

[0038] In Fig. 6 shows the upper guide rail 10, which is arranged stationary relative to the furniture body 6. The upper guide rail 10 has openings 77 for screws 18 for securing it to the furniture body 6.

[0039] The upper runner 14 has a holder 78, which is fastened to the door body 21 of the sliding door 4 via three screws 18. A latch 80 is held on the holder 78 of the upper runner 14 so as to be displaceable in a vertical displacement direction 22. At one end of the latch 80, an upper roller 82 is rotatably mounted on the upper guide rail 10, so that the upper roller 82 rolls over the upper guide rail 10 when the sliding door 4 moves in the guide direction 16.

[0040] In order to establish and maintain contact between the upper roller 82 and the upper guide rail 10, the present embodiment includes a blocking element 84 that can releasably block relative movement between the latch 80 of the upper running part 14 and the holder 78 of the upper running part 14. The latch 80 of the upper running part 14 can be displaced in the displacement direction 22 until the upper roller 82 contacts the upper guide rail 10. In this state, relative movement between the latch 80 of the upper running part 14 and the holder 78 of the upper running part 14 can be blocked via the blocking element 84.

[0041] It will be Fig. 7, which is an exploded view of the second barrel part 14 of Fig. 6 shows.

[0042] The holder 78 of the upper running part 14 comprises three pins 87 on a base plate 85, each with a through-hole through which screws 18 can be inserted. The tips of the pins 87 can be placed on the door body 21 so that the pins 87 define a gap between the base plate 85 and the door body 21.

[0043] The latch 80 of the upper barrel part 14 is formed, analogously to the support element 24 of the lower barrel part 12, from a sheet metal part 89, the edge area of ​​which is again partially reinforced with a bead 91. Analogously to the support element 24 of the lower barrel part 12, elongated holes 93 are formed in the sheet metal part 89 of the upper barrel part 14, into which the pins 87 of the holder 78 of the upper barrel part 14 are inserted in order to mount the latch 80 of the upper barrel part 14 displaceably in the displacement direction 22 relative to the holder 78 of the upper barrel part 14.

[0044] For supporting the upper roller 82, an opening 95 is provided through the sheet metal part 89 of the upper running part 14, analogous to the sheet metal part 40 of the lower running part 12, into which an axle 50 for supporting the upper roller 82 is inserted.

[0045] Viewed in the direction of displacement 22, on the upper side of the sheet metal part 89 of the upper running part 14, in the present embodiment, a guide plate 97 is formed analogously to the sheet metal part 40 of the lower running part 12, which can be inserted into a guide slot 58 on the upper guide rail 10. Fig. 4 shown features of the lower guide rail 8 can be transferred alternatively or additionally to the upper guide rail 10.

[0046] The blocking element 84 on the holder 78 of the upper running part 14 is according to Fig. 7 is rotatably mounted on a pivot bearing 88 of the holder 78. A spring element 92 is arranged on one side of the pivot bearing 88 in order to be able to insert a pin 94 into the pivot bearing 88 and a pin 94 on the opposite side of the blocking element 84 into a pivot bearing on the holder 78. Furthermore, the blocking element 84 comprises a rotary handle 96, by which the blocking element 84 can be held for rotation. Finally, the blocking element 84 comprises rib-shaped engagement elements 98, which can engage with ribs 100 on the sheet metal part 89 in order to prevent movement of the latch 80 of the upper running part 14 relative to the holder 78 of the upper running part 14 against the direction of displacement 22. The ribs 100 are preferably formed with an angle of attack 128, which is particularly Fig. 9d clearly shows. This ensures that when the rotary handle 96 is pivoted into the closed position, the tightening torque is continuously increased, and when pivoted completely, a maximum positive connection is achieved between the ribs 100 and the engagement elements 98. Furthermore, the ribs 100 and the engagement elements 98 have a special sawtooth shape, which mesh with each other and can absorb particularly high forces, especially in the event of an overload.

[0047] To mechanically support this positive locking, a lug 101 can be formed on the latch 80 in front of the rotary handle 96, as viewed in the direction of displacement 22. When the blocking element 84 is in a position in which the positive locking is closed, this lug can be placed on the rotary handle 96 as a stop to further prevent the aforementioned movement of the latch 80 relative to the holder 78 counter to the direction of displacement 22. At the same time, the lug 101 functions as a height stop for the latch 80 when the holder 78 is displaced, as well as as an emergency element in the event that the blocking element 84 fails due to a possible breakage.

[0048] To assist in pressing the upper roller 82 against the upper guide rail 10, the upper running part 14 further comprises a spring 102, which is preloaded counter to the direction of displacement 22 and is designed as a spiral spring. The spring 102 can be hooked into a corresponding spring suspension 104 on the furniture fitting side and supported by a corresponding counterbearing 106 in order to preload the sheet metal part 89 with the roller 82 against the guide rail 10 during assembly. The latch 80 of the upper running part 14 can be moved counter to the direction of the preload of the spring 102 via a handle section 108.

[0049] It will be Fig. 8, which shows a perspective view of an alternative sliding door 4 which, instead of a panel-shaped wooden material, has an aluminum frame with a filling element to which the second running part 14 is mounted.

[0050] A door body 21 has an outer frame into which a filling element, for example made of glass, is inserted. Corner connectors 112 are inserted into the frame strips 114 at the corners of the door body 21. The fastening between the corner connectors 112 and the frame strips 114 can be achieved via receiving holes 116 into which the screws 18 can be screwed.

[0051] In the present embodiment, a fastening hole 118 is formed on one of the frame strips 114, through which a guide part 120 can be fastened to this frame strip 114 with a further screw 18. In a guide gap (not shown) between the guide part 120 and the frame strip 114, the bar 80 of the upper running part 14 can then be guided via a guide projection 123 on the sheet metal part 89 of the bar 80 of the upper running part 14 in the region of the upper roller 82.

[0052] In the Fig. 9a to 9d are partial views of the blocking element 84 on the upper running part 14 of Fig. 6, which show the installation of the sliding door 4 on the furniture body 6.

[0053] Before installation, the lower and upper running parts 12, 14 are Fig. 2 and Fig. 6 are fastened to the underside and the top of the door body 21, respectively.

[0054] Subsequently, the lower running part 12 fastened to the door body 21 with its guide plate 54 can be inserted into the guide slot 58 of the lower guide rail 8, so that the sliding door 4 can be moved in a guided manner in the lower guide rail 8.

[0055] On the upper running part 14, the blocking element 84 can now be moved by means of the rotary handle 96, as shown in Fig. 9a, and the positive connection between the locking element-side engagement elements 98 and the ribs 100 arranged on the latch 80 is released.

[0056] In the Fig. In the position shown in Figure 9a, the latch 80 of the upper slide member 14 is in an upper position in which the upper edge of the guide plate 97 of the upper slide member 14, viewed in the direction of displacement 22, is higher than the lower edge of the upper guide rail 10. Thus, the guide plate 97 cannot be inserted into the guide slot 58 of the upper guide rail 10.

[0057] However, this is in a Fig. 9b, the position of the latch 80 of the upper running part 14 relative to the holder 78 of the upper running part 14 is possible, which will be referred to below as the assembly position. In the assembly position, the latch 80 has been moved downwards against the force of the spring 102, so that a distance 124 between the latch 80 and the sheet metal part 89 has been changed to a larger distance 126. In the assembly position, the guide plate 97 of the upper running part 14 is now located below the guide slot 58 of the upper guide rail 10, as viewed in the direction of displacement 22, and can therefore be arranged below the upper guide rail 10 by pivoting the sliding door 4 around the lower guide rail 8, as viewed in the direction of displacement 22. The latch 80 can be pulled into this assembly position, for example, by pulling on the handle section 108.

[0058] Once the guide plate 97 of the upper runner 14 is positioned below the guide slot 58 of the upper guide rail 10, the latch 80 of the upper runner 14 can be pushed in the displacement direction 22 by the spring 102, thus inserting the guide plate 97 of the upper runner 14 into the guide slot 58 of the upper guide rail 10. In this way, the sliding door is locked in the guide rails 8, 10 at an angle to the guide direction 16 and can no longer fall out of them.

[0059] Subsequently, the blocking element 84 can be closed until the rotary handle 96 circumferentially abuts the lug 101. In this way, the positive connection between the engagement elements 98 and the ribs 100 arranged on the latch 80 is partially closed. This allows the latch 80 to be secured in the locked position.

[0060] In Fig.10 shows in detail the engagement elements 98 and the ribs 100 which engage upon rotation of the blocking element 84 and thus prevent movement of the sheet metal part 40 relative to the latch 80.

[0061] The adjusting screw 28 can be used particularly advantageously to adjust the height of the sliding door 4. To do so, first, the locking element 84 on the upper runner 14 is released by pivoting the rotary handle 96. Subsequently, the desired height of the sliding door 4 can be adjusted using the adjusting screw 28 on the lower runner 12. At the same time, the upper runner 14 automatically adjusts itself before the locking element 84 is moved back into the locking position. List of reference symbols 2 furniture 4 sliding doors 6 Furniture body 8 Guide rail 10 Guide rail 12 Running part 14 Running part 16 Direction of guidance 18 screw 20 mounting brackets 21 Door body 22 Direction of displacement 24 Support element 26 rolls 28 Adjusting screw 30 adjustment opening 34 Base plate 36 cones 38 Holding element 40 sheet metal part 42 bulge 44 slot 46 Counter bearing element 48 Opening 50 axle 54 Guide plate 56 protective cap 58 guide slot 60 rail interior 62 Boundary element 64 lead 66 fastening section 68 stop section 70 screw 72 Elastic section 74 recording channels 76 Rejuvenation 77 Opening 78 holders 80 bars 82 roll 84 Blocking element 85 base plate 87 cones 88 pivot bearings 89 sheet metal part 91 bulge 92 spring element 93 slot 94 cones 95 Opening 96 rotary handle 97 Guide plate 98 engagement element 100 ribs 101 Nose 102 spring 104 Spring suspension 106 Counter bearing 108 handle section 112 corner connectors 114 frame strip 116 mounting hole 118 Mounting hole 120 guide part 123 lead 124 Distance (locking position) 126 Distance (mounting position) 128 angle of attack

Claims

[1] Running part (14) for a sliding door fitting, for guiding a furniture part along a guide rail (10) in a guide direction (16), comprising: - a holder (78) which can be firmly connected to the furniture part (4) to be guided, and - a bolt (80) which is held on the holder (78) at an angle to the guide direction (16) between a guide position and a mounting position and which is guided on the guide rail (10) in the guide position and is removable from the guide rail (10) in the mounting position, - a return element, by means of which the bolt (80) on the holder (78) is pretensioned into the guide position, wherein a blocking element (84) is provided, by means of which a displacement of the bolt (80) relative to the holder (78) in the guide position can be blocked, characterized bythat a nose (101) is formed on the bolt (80) which can be placed on a rotary handle (96) as a stop when the bolt (80) is moved in the direction (22) of the locking position (124) in a closed position of the blocking element (84). [2] Running part (14) according to claim 1, characterized by in that the blocking element (84) comprises a first form-locking element (100) on the latch (80) and a second form-locking element (98) on the holder (78) which is designed to be complementary to the first form-locking element (100) and which are designed to block the displacement of the latch (80) against the locking position (124) via a form-lock. [3] Running part (14) according to claim 2, characterized by that the first and / or second form-locking element (98, 100) is movably mounted at an angle to a displacement direction (22) of the bolt (80). [4] Running part (14) according to claim 2 or 3, characterized bythat the positive locking acts both in the guide direction (16) and in the direction (22) of the locking position (124). [5] Running part (14) according to one of the preceding claims 2 to 4, characterized by that the first and second form-locking elements (98, 100) are designed as locking elements to lock into one another when the bolt (80) is moved in the direction (22) of the locking position (124). [6] Running part (14) according to one of the preceding claims, characterized by that the teeth of the first form-locking element (98) and the second form-locking element (100) are sawtooth-shaped. [7] Running part (14) according to one of the preceding claims, characterized by that a strip-shaped holder (78) is provided for guiding the bolt (80) in a displacement direction (22) of the bolt (80). [8] Furniture fitting for a sliding door, which is guided along a first guide rail (8) and a second guide rail (10) in a guide direction (16), comprising: - a base body (21), in particular a door element, - at least one first running part (12) connected to the base body (21) for guiding the base body (21) on the first guide rail (8), and - at least one second running part (14) according to one of the preceding claims, which is fastened to the base body (21) at a distance from the first running part (12) for guiding the base body (21) on the second guide rail (10). [9] Furniture fitting according to claim 8, characterized by in that the first running part (12) comprises a mounting holder (20) which is firmly connected to the base body (21) and a support element (24) which is held displaceably on the mounting holder (20) at an angle to the guide direction (16), via which support element the base body (21) is guided in the direction of the first guide rail (8). [10] Furniture fitting according to one of the preceding claims 8 and 9, characterized by that at least one limiting element (62) arranged on the first guide rail (8) is provided for limiting a movement of the first running part (12) in the guide direction (16). [11] Furniture fitting according to claim 9, characterized by that the limiting element (62) has a region (76) tapering in the guide direction (16) for frictionally receiving at least one part (54) of the first running part (12). [12] Furniture fitting according to one of claims 8 to 11, characterized by that the first running part (12) and / or the second running part (14) is fastened to the base body (21) at at least two, preferably three, different fastening points (36, 87). [13] Furniture (2) comprising a furniture body with a movably mounted sliding door which is held on the furniture body by a furniture fitting according to one of claims 8 to 12.

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