Drawer rail for a drawer pull-out guide

Description

[0001] The present invention relates to a drawer rail for a drawer pull-out guide.

[0002] Furthermore, the invention relates to a drawer pull-out guide with at least one drawer rail of the type to be described, as well as to a piece of furniture with a furniture body and a drawer mounted so as to be movable relative to the furniture body. Furthermore, the invention relates to a method for connecting a first rail to a second rail of a drawer rail on a drawer pull-out guide.

[0003] DE 198 28 718 A1 describes a locking device for releasably securing drawers to an extendable guide rail of a drawer pull-out guide. During assembly, the drawer is placed onto the guide rail and pushed backwards until a spring-loaded locking latch automatically engages a locking opening in the drawer. This ensures that the drawer is immovably mounted relative to the guide rail during normal operation. In the assembled position, the locking latch is mounted so that it can be moved linearly in a vertical direction and has a handle at the lower end area. The locking between the drawer and the guide rail can be released by a downward manual pulling movement on the locking latch. The disadvantage of this is that the installation space for the drawer pull-out guide must be relatively large due to the downwardly projecting locking latch.

[0004] DE 20 2013 100 013 U1 shows a drawer slide with a cabinet rail to be attached to a furniture carcass, a drawer rail to be attached to a drawer, and a center rail that is movably mounted between the cabinet rail and the drawer rail. At the front end of the drawer rail, an elastic pressing element in the form of a spring tongue is arranged, which can be bent upwards when the drawer is pushed onto the drawer rail and then locks the drawer relative to the drawer rail. The disadvantage of this is that the spring tongue is visible even when the drawer is installed.

[0005] AT 518 232 A1 shows a drawer assembly with a drawer extension guide and a drawer side panel, with a support rail firmly connected to the drawer side panel. An actuating element is pivotably mounted at the front end of the support rail of the drawer side panel, which can be releasably locked to the drawer rail of the drawer extension guide when the drawer side panel is pushed open. The disadvantage of this is that each drawer must be equipped with an actuating element to lock it to the drawer extension guide.

[0006] EP2704605 A1 shows an arrangement with a drawer and with a drawer pull-out guide, wherein the drawer pull-out guide has a carcass rail to be fastened to a furniture carcass, a drawer rail to be fastened to the drawer and mounted so as to be movable relative to the carcass rail, and a locking device arranged on the drawer rail, by means of which the drawer can be releasably locked relative to the drawer rail.

[0007] The object of the present invention is to provide a drawer rail of the type mentioned at the outset while avoiding the disadvantages discussed above.

[0008] This is achieved according to the invention by the features of patent claim 1. Further advantageous embodiments of the invention are specified in the dependent claims. According to the invention, the locking element is arranged on the second rail and, when the first rail is pushed onto the second rail, can be pivoted from the locking position against the force of the energy accumulator about an axis that runs horizontally in the assembled position in the direction of the cabinet rail or the center rail of the drawer extension guide into a release position.

[0009] Thus, in an assembly position of the drawer rail, the locking element is pivotally mounted about a horizontal axis, so that the drawer can be placed on the first rail during assembly on the drawer pull-out guide and moved backwards until the locking element is moved downwards towards the release position by the weight of the drawer against the force of the energy storage device and the drawer can be releasably locked by the force of the energy storage device during a continued insertion movement.

[0010] The feature of the locking element, which is pivotally mounted about a horizontal axis in the assembly position of the drawer rail, is also not an obvious measure based on the DE 198 28 718 A1 mentioned at the beginning, because the downwardly projecting handle according to DE 198 28 718 A1 is an essential technical feature for releasing the lock between the drawer and the guide rail.

[0011] One advantage of the invention is that the first rail arranged on the drawer does not require any vertical insertion stroke when pushed onto the second rail. The drawer can therefore be pushed onto the second rail in a horizontal plane during assembly until the locking element initially moves downwards and then snaps back up again due to the force of the energy accumulator, thus automatically locking the drawer relative to the second rail. This means that no vertical space is required for locking, which is particularly advantageous when the drawer is to be installed in a furniture carcass directly beneath a worktop and there is therefore only a very small distance between the drawer and the underside of the worktop.

[0012] The locking element is mounted on the second rail. For improved accessibility, it may be advantageous if the locking element is movably mounted at a front end region of the second rail.

[0013] In one embodiment, the locking element can be guided through an opening in the second rail. This results in a compact and visually unobtrusive design because the locking element is arranged predominantly within a rail cross-section, and only the part of the locking element intended for locking protrudes from the second rail. Preferably, the opening is arranged on a central web of the second rail, which preferably runs horizontally in the assembled position.

[0014] The at least one locking element and the energy storage device can be formed as a single piece or as separate components. In the single-piece design, the energy storage device can be formed by the elasticity of a plastic part. However, to increase the spring force, it may be advantageous for the energy storage device to comprise a mechanical spring element (e.g., a steel leaf spring) separate from the locking element.

[0015] The drawer slide according to the invention comprises a cabinet rail to be attached to a furniture carcass and a drawer rail of the type in question, wherein the drawer rail is mounted so that it can slide relative to the cabinet rail. To enable full extension of the drawer relative to the front of the furniture carcass, an additional center rail can be provided, which is mounted so that it can slide between the cabinet rail and the drawer rail.

[0016] The method according to the invention for connecting a first rail to a second rail of a drawer rail is characterized in that in a first method step, the first rail to be fastened or fastened to a drawer is placed on the second rail to be arranged or arranged on a carcass rail or middle rail of a drawer pull-out guide, in a second method step the first rail is pushed onto the second rail, in a third method step the locking element of the second rail is pivoted against the force of the energy store about an axis which runs horizontally in the assembled position in the direction of the carcass rail or the middle rail of the drawer pull-out guide into a release position, and in a fourth method step the locking element is moved into a locking position by the force of the energy store, whereby the two rails are locked together.

[0017] Further details and advantages of the present invention are explained with reference to the embodiment shown in the figures.Fig. 1 shows a perspective view of a piece of furniture with drawers which are mounted so as to be movable relative to a furniture body by means of drawer pull-out guides. Figs. 2a and 2b show the drawer to be attached to the drawer pull-out guide and the drawer mounted on the drawer pull-out guide in perspective views. Figs. 3a-3c show the side wall to be attached to the drawer pull-out guide in a perspective view, in an enlarged detailed view, as well as the first and second rails in a perspective view. Figs. 4a-4d show the sliding of the first rail onto the second rail in chronologically successive steps. Figs. 5a-5e show a continued sliding of the first rail onto the second rail. Figs. 6a-6c show the connected state of the rails in different cross-sections. Figs. 7a-7e show the unlocking of the rails in chronologically successive steps.8a-8c show the drawer rail with the first and second rail as well as the functional head in different perspective views, Fig. 9a, 9b show a functional head in a slightly modified embodiment in a perspective view as well as in a mounted state on the second rail, Fig. 10a-10c show the mounting of the drawer on the drawer pull-out guide with a faulty locking between the rails, Fig. 11a-11c show the establishment of a correct connection between the rails.

[0018] Fig. 1 shows a piece of furniture 1 with a cabinet-shaped furniture body 2, wherein drawers 3 are mounted so as to be movable relative to the furniture body 2 via drawer pull-out guides 4. The drawers 3 have a front panel 5, a drawer bottom 6, side walls 7 and a rear wall 8. The drawer pull-out guides 4 comprise a body rail 9, which is to be fastened to the furniture body 2 via fastening sections 10a, 10b, and at least one drawer rail 11 which is displaceable relative to the body rail 9. The drawer rail 11 is formed in at least two parts and comprises a first rail 12 ( Fig. 2a ) and a second rail 13 to be arranged or arranged on the drawer extension guide 4. In order to enable full extension of the drawer 3 relative to the furniture body 2, an additional middle rail 14 can be provided, which is slidably mounted between the body rail 9 and the drawer rail 11. The drawers 3 are mounted on the drawer extension guides 4 by first placing the drawer 3 onto the second rails 13 opposite the furniture body 2. Subsequently, the first rails 12 fastened to the drawer 3 are pushed in the longitudinal direction (L) onto the second rails 13 until the first and second rails 12, 13 are connected by at least one guide rail 26 extending around a horizontal axis ( Fig. 4a ) pivotable locking element 21 are automatically locked together, so that the first and second rails 12, 13 are arranged fixed relative to one another in the connected state.

[0019] Fig. 2a shows the drawer 3 to be attached to the drawer pull-out guide 4 in a perspective view, wherein a side wall 7 of the drawer 3 is hidden for reasons of improved clarity. The first rail 12 of the drawer rail 11 arranged on the drawer 3 can be seen, wherein a first fastening adapter 16 for fastening the front panel 5 is arranged in the front end region of the first rail 12 and a second fastening adapter 17 for fastening the rear wall 8 is arranged in the rear end region of the first rail 12. The first rail 12 has two side legs 12a running in the longitudinal direction (L) and spaced apart from one another essentially parallel, wherein at least one spring means 18 in the form of an elastically bendable spring tab is arranged on one of the side legs 12a.When the rails 12, 13 are connected, the spring means 18 of the first rail 12 rests against the second rail 13, so that transverse movements of the rails 12, 13 relative to one another can be limited. In the exemplary embodiment shown, two spring means 18, 19 spaced apart in the longitudinal direction (L) are provided on the first rail 12. At the rear end of the second rail 13, a hook 15 is arranged, which limits the sliding path of the first rail 12 relative to the second rail 13 in the sliding direction 20 and which, in the assembled state, stabilizes the rear end region of the drawer 3 in a direction transverse to the longitudinal direction (L). The carcass rail 9 of the drawer extension guide 4 is mounted on the furniture carcass 2 via the fastening sections 10a, 10b, wherein the second rail 13 of the drawer rail 11 and the middle rail 14 are mounted so as to be displaceable relative to the stationary carcass rail 9.The drawer 3 is mounted on the second rail 13 by sliding the first rails 12 connected to the side walls 7 of the drawer 3 onto the second rails 13 of the drawer extension guides 4 in the sliding direction 20.

[0020] Fig. 2b shows the connected state of the drawer 3 on the drawer pull-out guide 4, wherein the second rail 13 is accommodated for the most part within a profile of the first rail 12 which is U-shaped in cross section and wherein the rails 12, 13 are arranged with no play relative to one another by the spring means 18, 19 in a direction running transversely to the longitudinal direction (L), preferably in a direction running laterally to the longitudinal direction (L) of the rails 12, 13.

[0021] Fig. 3a shows the drawer pull-out guide 4 with the body rail 9, the middle rail 14 and the second rail 13, which is to be connected to the first rail 12 of the drawer 3.

[0022] Fig. 3b shows the Fig. 3a circled area in an enlarged view, in which the movably mounted locking element 21 for releasably locking the rails 12, 13 is shown. The locking element 21 is arranged at the front end region of the second rail 13 and passed through an opening 22 in the second rail 13. When the first rail 12 is pushed onto the second rail 13, the locking element 21 can be pivoted from the locking position against the force of an energy accumulator 25 about an axis 26 which runs horizontally in the assembled position in the direction of the carcass rail 9 or the central rail 14 of the drawer pull-out guide 4 into a release position.

[0023] Fig. 3c shows the second rail 13 of the drawer pull-out guide 4 and the first rail 12 to be connected to the side wall 4 in a perspective view. The second rail 13 has two side legs 13a, preferably running parallel to one another, and a central web 13c connecting the two side legs 13a. The central web 13c of the second rail 13 has an opening 22, for example a rectangular opening, for the passage of the movable locking element 21. The locking element 21 is arranged fixedly in a longitudinal direction (L) and is mounted so as to be movable in a direction approximately at right angles to the central web 13c of the second rail 13. In the exemplary embodiment shown, the locking element 21 is formed in one piece together with a front-side functional head 23, which is predominantly accommodated within the rail cross-section of the second rail 13.The first rail 12 also has two side legs 12a, preferably running parallel to one another, and a central web 12c connecting the two side legs 12a. Furthermore, the first rail 12 is provided with a support leg 12d for the drawer bottom 6. The first rail 12, preferably the central web 12c, has at least one downwardly projecting projection 24a, which can be releasably locked to the locking element 21 of the second rail 13. In the exemplary embodiment shown, two projections 24a, 24b spaced apart from one another in the longitudinal direction (L) are provided, wherein the locking element 21 can be releasably locked to the first projection 24a in a pre-locking position of the first and second rails 12, 13 and to the second projection 24b in a connected state of the first and second rails 12, 13. The projections 24a, 24b can be bent downwards from the central web 12c of the first rail 12.Alternatively, the projections 24a, 24b may be designed as components separate from the first rail 12, which are fastened to the first rail 12.

[0024] Fig. 4a-4d show the sliding of the first rail 12 onto the second rail 13 in longitudinal sections. On the first rail 12, two projections 24a, 24b are arranged, spaced apart from one another in the longitudinal direction (L), which protrude downwards from the central web 12c of the first rail 12. At the front end of the second rail 13, the functional head 23 with the locking element 21 is arranged, which, in the assembled position, is pivotably mounted about a horizontally extending axis 26. To mount the drawer 3 on the drawer pull-out guide 4, the first rail 12 connected to the drawer 3 is placed onto the front end region of the second rail 13 pre-assembled on the furniture body 2 and moved in the sliding direction 20, with the central web 12c of the first rail 12 and the central web 13c of the second rail 13 initially sliding against one another.By a continued movement of the first rail 12 in the sliding direction 20, the front edge of the first rail 12 strikes the locking element 21 of the second rail 13 (. Fig. 4b ). By a further movement of the first rail 12 in the sliding direction 20, the locking element 21 of the second rail 13 is pivoted about the horizontally extending axis 26 against the force of an energy accumulator 25 ( Fig. 4c ). By pushing the first projection 24a of the first rail 12 onto the central web 13c of the second rail 13, the first rail 12 is lifted from the second rail 13, forming a gap 27, whereby the loaded energy accumulator 25 relaxes and the locking element 21 snaps back upwards around the axis 26 ( Fig. 4d This has the advantage that, when pushed on, the two rails 12, 13 do not come into contact with each other via their flat central webs 12c and 13c, but only via the projections 24a, 24b. This reduces frictional resistance and any unpleasant noise when sliding on the rails 12, 13, so that sliding on the rails 12, 13 is smooth and quiet.

[0025] Fig. 5a-5d show a continued movement of the first rail 12 in the sliding direction 20, with both projections 24a, 24b now sliding along the second rail 13, forming the gap 27 between the central webs 12c, 13c (Fig. 4e). The first projection 24a of the first rail 12 moves the locking element 21 about the horizontal axis 26 against the force of the energy accumulator 25 ( Fig. 5b ), whereupon the locking element 21 is locked with the first projection 24a in a pre-locking position ( Fig. 5c ). This pre-locking position has the advantage that the first rail 12 is caught by the locking element 21 of the second rail 13, giving the user the secure feeling that the sliding path is practically completed and a lock is established between the drawer 3 and the drawer extension guide 4. Releasing the pre-locking position by manually pulling on the first rail 12 against the sliding direction 20 is no longer possible from this point on. The user now has two different options for establishing the final connection. According to a first variant, the first rail 12 can be moved from the position shown in Fig. 5c shown pre-locking position further in the sliding direction 20, wherein the locking element 21 is pressed downwards again by the second projection 24b of the first rail 12 against the force of the energy accumulator 25 ( Fig. 5d ). Subsequently, the second projection 24b is automatically locked to the locking element 21 under the action of the force of the energy accumulator 25, so that the rails 12, 13 are in their connected state and are fixed to one another in the longitudinal direction (L) by the locking element 21 ( Fig. 5e ). According to a second variant, the first rail 12 (and thus also the second rail 13 coupled thereto) can be guided from the Fig. 5c shown pre-locking position by opening the drawer 3 against the sliding direction 20, then the drawer 3 is retracted with momentum into the furniture body 2, whereby the locking process described above ( Fig. 5d, Fig. 5e ) is brought about. Starting from the locked position ( Fig. 5e ), the locking of the rails 12, 13 cannot be released by manually pulling on the first rail 12 against the sliding direction 20. This represents a safety aspect because it is intended to prevent the rails 12, 13 from becoming accidentally detached from one another.

[0026] Fig. 6a shows the connected state of the rails 12, 13, wherein the locking element 21 of the second rail 13 is locked to the second projection 24b of the first rail 12. Fig. 6b shows the Fig. 6a The circled area "A" is shown in an enlarged view. It can be seen that the locking element 21 is covered by the central web 12c of the first rail 12 when the rails 12, 13 are connected. In the illustrated embodiment, the locking element 21 rests against an underside of the central web 12c of the first rail 12 when the rails 12, 13 are connected. Covering the locking element 21 has the advantage that, when the rails 12, 13 are connected, unintentional actuation of the locking element 21 is avoided. The energy accumulator 25 for urging the locking element 21 toward the locking position is formed in the figure as a leaf spring made of steel, separate from the locking element 21, with the leaf spring pressing against the locking element 21 with a bent end region. Fig. 6c shows the Fig. 6a Enlarged view of the circled area "B". The functional head 23 mounted at the front end of the second rail 13 has at least one spring buffer 28, by means of which the rails 12, 13 are arranged with no play relative to one another in the longitudinal direction (L) when connected. In the connected state, a fitting part 29 arranged or formed on the front panel 5 of the drawer 3 presses against the spring buffer 28 of the functional head 23. In this way, the remaining play between the rails 12, 13 in the longitudinal direction (L) can be compensated.

[0027] To increase ease of use, pieces of furniture 1 are often equipped with ejection devices by which the drawer 3 can be ejected from its closed end position in or on the furniture body 1 into an open position. Particularly in handleless drawers 3, the ejection devices are often designed such that they can be triggered by moving the drawer 3 from the closed end position toward the furniture body 2. For this purpose, a certain amount of play in the drawer 3 in its closed end position must be permitted. The spring buffer 28 now enables the drawer 3 to be moved from its closed end position against the force of the spring buffer 28 toward the furniture body 2, thereby triggering ejection devices with a touch-latch function.The spring buffer 28 is used in particular in so-called interior drawers, in which the front panel 5 of the drawer 3 cannot abut the front edge of the furniture body 2 in the closed position, but is arranged between the side walls of the furniture body 2. By exerting pressure on the front panel 5 of the drawer 3 designed as an interior drawer, the first rail 12 can be moved relative to the second rail 13 against the force of the spring buffer 28, whereby the spring buffer 28 is deformed or bent and the ejection device can be triggered. After the ejection device has been triggered, the first rail 12 can be moved back to its original position, optionally with the assistance of the ejection device. In the illustrated embodiment, the spring buffer 28 is formed by at least one depressible plastic part.Alternatively, it is possible for the spring buffer 28 to have a stop part for the drawer 3 which is acted upon by a spring.

[0028] Fig. 7a-7e show the unlocking of the rails 12, 13 starting from the connected state in which the locking element 21 of the second rail 13 is locked to the projection 24b of the first rail 12. For unlocking the rails 12, 13, an unlocking device 33 according to the invention is provided, which has at least one engagement element 30 arranged on the first rail 12, which, when the rails 12, 13 are in the connected state, is received in a recess 31 arranged on the second rail 13 with play in the vertical direction (H). The recess 31 has a control cam 32, wherein the engagement element 30 can be guided along the control cam 32 starting from the connected state of the rails 12, 13 by manually lifting the first rail 12 relative to the second rail 13.In order to unlock the locking element 21 from the projection 24b, the first rail 12 must first be raised by a person relative to the second rail 13 in the height direction (H) by the amount Δx1 (. Fig. 7b ). After lifting, the first rail 12 is moved by a person in the extension direction (A), whereby the engagement element 30 is moved with a component along a section 32a of the control cam 32 running in the extension direction (A) of the drawer 3 ( Fig. 7c ), wherein it is preferably provided that the section 32a extends at least partially obliquely with respect to a horizontal. In this way, the engagement element 30 can be raised by the amount Δx2 relative to the second rail 13. As in Fig. 7d As shown, the first rail 12 is then lowered downwards in the vertical direction (H) by manual force, whereby the engagement element 30 is moved along a vertical section 32b of the control cam 32. Only then is the first rail 12 movable independently of the second rail 13 and can, as in Fig. 7e shown, further in the extension direction (A) and thereby the drawer 3 is separated from the drawer extension guide 4. The unlocking of the rails 12, 13 is thus carried out by a predetermined movement pattern, namely in the embodiment shown by lifting the first rail 12 in the height direction H ( Fig. 7b ), Pull out in pull-out direction A ( Fig. 7c ), lowering in height direction H ( Fig. 7d ) and then pulling out in the extension direction A ( Fig. 7e ). This combination of movements represents a safety aspect, as an unintentional separation of the drawer 3 from the drawer guide 4 must be avoided at all costs. In particular, it is intended to ensure that the drawer 3 (especially if it is the lowest drawer 3 in a furniture body 2) cannot be released from the drawer guide 4 by a simple upward pulling movement. After the pulling movement has been completed, the drawer 3 must first be lowered again ( Fig. 7d ) so that the drawer 3 can be separated from the drawer pull-out guide 4.

[0029] Fig. 8a shows a perspective view of the drawer rail 11 with the first rail 12 to be arranged on the drawer 3 and the second rail 13 arranged on the drawer extension guide 4, which are locked together in the connected state by the locking element 21. At least one projection 24a, 24b can have an inclined surface 35, by means of which the locking element 21 can be moved towards the release position when the rails 12, 13 are pushed on. The engagement element 30 arranged on the first rail 12 can be seen, which interacts with a control cam 32 arranged on the second rail 13 during the unlocking process of the rails 12, 13, as is described in connection with the Fig. 7a-7e shown and described. The control cam 32 can be formed, for example, by an edge of a recess 31 of the second rail 13.

[0030] Fig. 8a und Fig. 8b show two different perspective views of the functional head 23, which is to be arranged at a front end of the second rail 13. At least one energy accumulator 25, for example in the form of a leaf spring, is provided to apply force to the locking element 21. Also visible is the depressible spring buffer 28, by means of which the rails 12, 13 can be arranged relative to one another in the longitudinal direction (L) without play and by means of which the drawer 3, starting from its closed end position, can be moved against the force of the spring buffer 28 in the direction of the furniture body 2, so that ejection devices with a touch-latch function can be triggered. The functional head 23 also has a recess 36, for example in the form of a groove, so that the engagement element 30 does not collide with the functional head 23 of the second rail 13 when the rails 12, 13 are pushed on and separated.

[0031] Fig. 9a shows the functional head 23 in a slightly modified embodiment. The locking element 21 has a first stop surface 37a and at least one second stop surface 37b, wherein the first stop surface 37a or alternatively the second stop surface 37b can be brought into engagement with the first rail 12, so that the second rail 13, starting from the fully closed position, can be moved into an open position by the interaction of the first stop surface 37a with the first rail 12 or alternatively by the interaction of the second stop surface 37b with the first rail 12. The second stop surface 37b is therefore provided to drive the second rail 13 of the drawer pull-out guide 4 from the fully closed position into an open position in the event of a faulty locking with the first rail 12.A faulty locking could, for example, be caused by a very slow insertion movement of the drawer 3, as a result of which the first rail 12 would not be properly connected to the first stop surface 37a. Fig. 9b shows the Fig. 9a shown functional head 23 in an assembled state at the front end region of the second rail 13, wherein the two stop surfaces 37a, 37b of the locking element 21 protrude upwards from the second rail 13. The two stop surfaces 37a, 37b are spaced apart from one another in the longitudinal direction (L) of the second rail 13 and run essentially perpendicular to the longitudinal direction (L) of the second rail 13. If the first rail 12 is properly locked to the locking element 21 of the second rail 13, a part of the first rail 12 rests against the first stop surface 37a of the locking element 21. If, on the other hand, the first rail 12 is incorrectly locked to the second rail 13, the second rail 13 can be driven from a fully closed position into an open position by the interaction of the second inclined surface 37b with the first rail 12.

[0032] If the first rail 12 is now mounted on the drawer 3 starting from Fig. 10a is pushed onto the second rail 13 of the drawer pull-out guide 4, the locking element 21 of the second rail 13 is bent downwards by the interaction with the first projection 24a against its resilient effect ( Fig. 10b ). If the first rail 12 of the drawer 3 is pushed further in the closing direction, the front panel 5 of the drawer 3 strikes the front side 2a of the furniture body 2 and can therefore not be moved further in the closing direction ( Fig. 10c ). In Fig. 10c However, it is also evident that the locking element 21 of the second rail 13 is not properly locked to the second projection 24b of the first rail 12 because the second projection 24b comes to rest directly on the locking element 21. However, a faulty locking between the rails 12, 13 cannot be corrected by continued movement of the drawer 3 in the closing direction because the front panel 5 rests against the end face 2a of the furniture body 2, thus preventing further movement of the drawer 3 in the closing direction. However, a faulty locking between the rails 12, 13 would also result in the drawer 3 remaining in an undesirable open position.

[0033] To ensure a correct locking between the rails 12, 13, first pull the drawer 3 (and thus the first rail 12) in the extension direction (A) (see Fig. 11a ), wherein the first rail 12, for example the second projection 24b of the first rail 12, can be coupled to the second stop surface 37b of the locking element 21. Through the interaction of the rail 12 with the second stop surface 37b of the locking element 21, the second rail 12 can be pulled from a fully closed position into an open position.

[0034] In Fig. 11b the drawer 3 was moved again in the insertion direction (E), whereby the relative position between the second projection 24b and the second stop surface 37b remains unchanged due to the friction occurring between the rails 12, 13. By a continued movement of the drawer 3 in the insertion direction (E), the first rail 12 (and thus the second projection 24b) is moved further in the insertion direction (E), whereby the locking element 21 snaps back and the first stop surface 37a rests against the first rail 12, preferably against the second projection 24b of the first rail 12, without play. The correct locking between the rails 12, 13 is in Fig. 11c shown, wherein the rails 12, 13 are arranged fixed relative to each other in the locked state.

Claims

1. A drawer rail (11) for a drawer pull-out guide (4), comprising: - a first rail (12) configured to be fixed or fixed to a drawer (3), - a second rail (13) configured to be arranged or arranged on a carcass rail (9) or on a central rail (14) of a drawer pull-out guide (4), - wherein the first rail (12) and the second rail (13) are configured to be connected to one another by sliding onto each other, wherein the first rail (12) and the second rail (13), in a connected condition, are locked to one another by at least one locking element (21), the locking element (21) being pre-stressed by a force of a force storage member (25) in a direction of a locking position, - wherein the locking element (21) is arranged on the second rail (13) and is configured to be pivoted, upon sliding the first rail (12) onto the second rail (13), about a horizontally extending axis (26) in the mounted position, starting from the locking position, against a force of the force storage member (25) in a direction of the carcass rail (9) or the central rail (14) of the drawer pull-out guide (4) into an unlocking position, characterized in that an unlocking device (33) for unlocking the rails (12, 13) is provided, wherein the unlocking device (33) includes at least one engagement element (30) arranged on one of the rails (12, 13), the engagement element (30) being received in a recess (31) arranged on the other of the rails (12, 13), with a play in a height direction (H) in the connected condition of the rails (12, 13).

2. The drawer rail according to claim 1, characterized in that the locking element (21) is movably supported on a front-end region of the second rail (13), and / or the at least one locking element (21) is guided through an opening (22) of the second rail (13).

3. The drawer rail according to claim 1 or 2, characterized in that the at least one locking element (21) and the force storage member (25) are formed together so as to have an integral one-piece construction, or are configured as components separate from one another.

4. The drawer rail according to one of the claims 1 to 3, characterized in that at least one protrusion (24a, 24b) is arranged or formed on the first rail (12), and the at least one locking element (21) is configured to be releasably locked to the at least one protrusion (24a, 24b).

5. The drawer rail according to claim 4, characterized in that the at least one protrusion (24a, 24b) includes at least one inclined surface portion (35) for moving the locking element (21) in a direction of the unlocking position upon sliding the rails (12, 13) onto one another, and / or wherein at least two protrusions (24a, 24b) are provided on the first rail (12), the at least two protrusions (24a, 24b) being spaced apart from one another in a longitudinal direction (L) of the first rail (12), wherein the locking element (21) is locked with the first protrusion (24a) in a pre-locking position of the first and second rail (12, 13), and is locked with the second protrusion (24b) in the connected condition of the first and second rail (12, 13).

6. The drawer rail according to one of the claims 1 to 5, characterized in that the locking element (21) includes a first abutment surface (37a) and at least one second abutment surface (37b), wherein the first abutment surface (37a) or, alternatively, the second abutment surface (37b) is configured to be engaged with the first rail (12), so that the second rail (13), starting from the fully closed position, is movable into an open position by the co-operation of the first abutment surface (37a) with the first rail (12) or, alternatively, by the co-operation of the second abutment surface (37b) with the first rail (12).

7. The drawer rail according to one of the claims 1 to 6, characterized in that at least one of the rails (12, 13) includes two side limbs (12a, 12b, 13a, 13b) and a middle limb (12c, 13c) connecting the side limbs (12a, 12b, 13a, 13b), wherein the locking element (21), in the connected condition of the rails (12, 13), is covered by a middle limb (12c, 13c) of the rails (12, 13).

8. The drawer rail according to one of the claims 1 to 7, characterized in that the recess (31) includes a control curve (32), and the engagement element (30) is configured to be guided, starting from a connected condition of the rails (12, 13), along the control curve (32) by manually lifting the first rail (12) in the height direction (H) relative to the second rail (13).

9. The drawer rail according to claim 8, characterized in that the control curve (32) includes a portion (32a) extending in an extension direction (A) of the drawer (3), wherein the engagement element (30) is limitedly movable, after having been lifted the first rail (12) in the height direction (H), along the portion (32a) extending in the extension direction (A) with a component in the extension direction (A).

10. The drawer rail according to claim 9, characterized in that the control curve (32a) includes a vertical portion (32b) adjoining the first portion (32a), and the engagement element (30) is configured to be guided, after having been moved along the first portion (32a), along the vertical portion (32b) by manually lowering the first rail (12) relative to the second rail (13) in the height direction (H), and wherein the first rail (12) is releasable from the second rail (13) after the engagement element (30) has been moved along the vertical portion (32b).

11. A drawer pull-out guide (4) comprising a carcass rail (9) to be fixed to a furniture carcass (2) and a drawer rail (11) according to one of the claims 1 to 10, wherein the drawer rail (11) is displaceably supported relative to the carcass rail (9).

12. An item of furniture (1) comprising a furniture carcass (2), a drawer (3) displaceably supported relative to the furniture carcass (2), and a drawer rail (11) according to one of the claims 1 to 10 or comprising a drawer pull-out guide (4) according to claim 11, wherein the first rail (12) is premounted to the drawer (3) and the second rail (13) is premounted to the furniture carcass (2), wherein the first rail (12) connected to the drawer (3) is configured to be connected to the second rail (13) by sliding the first rail (12) onto the second rail (13).

13. A method for connecting a first rail (12) to a second rail (13) of a drawer rail (11) according to one of the claims 1 to 10, wherein: - in a first method step, the first rail (12) configured to be fixed or fixed to the drawer (3) is placed onto the second rail (13) configured to be arranged or arranged on the carcass rail (9) or on the central rail (14) of a drawer pull-out guide (4), - in a second method step, the first rail (12) is slid onto the second rail (13), - in a third method step, the locking element (21) of the second rail (13) is pivoted about a horizontally extending axis (26) in the mounted position, against a force of the force storage member (25), in a direction of the carcass rail (9) or the central rail (14) of the drawer pull-out guide (4) into an unlocking position, and - in a fourth method step, the locking element (21) is moved into a locking position by a force of the force storage member (25), whereby the two rails (12, 13) are locked to one another.

14. The method according to claim 13, characterized in that the first rail (12), for releasing the locking between the rails (12, 13), is lifted relative to the second rail (13), subsequently moved in an extension direction (A), subsequently lowered relative to the second rail (13), and is subsequently further moved in the extension direction (A).