GUIDE SYSTEM FOR GUIDING A MOVABLE DOOR LEAF

Description

[0001] The present invention relates to a guide system for guiding at least one door leaf, in particular a folding-sliding door, which is mounted so as to be movable relative to a furniture body, comprising: at least one guide rail with a longitudinal direction, wherein the longitudinal direction of the guide rail in a mounted state on the furniture body runs substantially parallel to a depth direction of the furniture body, a support for the movable mounting of the at least one door leaf, wherein the support is mounted so as to be movable at least in sections along the guide rail, at least one stop for determining an end position of the at least one support in the longitudinal direction of the guide rail, wherein the at least one stop is arranged on an ejector of an ejection device, by means of which the carrier can be ejected in a direction opposite to the depth direction by overpressing the stop into an overpressing position located behind the end position.

[0002] Furthermore, the invention relates to a piece of furniture with a furniture body and with at least one door leaf, which is mounted so as to be movable relative to the furniture body by a guide system of the type to be described.

[0003] EP 0 254 041 A1 shows a furniture door that is pivotably mounted on a stop bar via hinges. The stop bar is movable along an upper and lower guide by a scissor mechanism, allowing the furniture door to be moved depthwise into the furniture body. The lower guide has an adjustable stop, allowing the furniture door to be adjusted laterally in the closed position.

[0004] In WO 2018 / 129572 A1, the applicant's patent application, WO 2018 / 129572 A1, Figures 7a-7d show a guide system for door leaves with two guide rails running at right angles to each other. A support in the form of an elongated column is provided for the movable mounting of at least one door leaf. The support—together with the two door leaves—is movable in a depth direction of the furniture body, so that the door leaves can be retracted into a lateral insertion slot of the furniture body in a position parallel to each other when not in use. For this purpose, a guide rail is attached to the side wall of the furniture body, and the support is movable along the guide rail in the depth direction of the furniture body.However, in the retracted end position of the support, it may happen that the parallel door leaves are not flush with the narrow side of the side panel due to manufacturing tolerances or differing widths. This not only creates a disturbing visual impression but also negatively impacts the movement of the door leaves. Furthermore, it is possible that the transition area between the guide rails is not precisely aligned due to inaccurate installation of the guide rail on the side panel, making it difficult to transfer a carriage intended to guide a door leaf between the guide rails.

[0005] The object of the present invention is to provide a guidance system of the type mentioned at the outset while avoiding the disadvantages discussed above.

[0006] This is achieved according to the invention by the features of patent claim 1. Further advantageous embodiments of the invention are defined in the dependent claims.

[0007] According to the invention, it is provided that the at least one stop is adjustable in the longitudinal direction relative to the at least one guide rail by the at least one adjusting device.

[0008] In other words, the at least one stop is adjustable for determining an end position of the carrier relative to the guide rail running in the depth direction in the assembly position, so that an end position of the carrier can be adjusted by actuating the adjusting device.

[0009] Thus, the adjustment device can also be used to position the door leaf to be connected to the support in a depth direction of the furniture body in such a way that a front narrow side of the door leaf in the assembled state can be aligned with a narrow side of the furniture body when the door leaf is pushed in.

[0010] The adjustment of the at least one stop relative to the guide rail can, for example, be continuous. Alternatively, the adjustment device can have several predefined positions for the adjustable arrangement of the stop.

[0011] According to one embodiment, the adjustment device can be designed to be self-locking. This ensures that a preset position of the stop relative to the guide rail remains in every set position.

[0012] The adjustment device can have at least one rotatably mounted operating element, wherein the at least one stop can be adjusted relative to the guide rail by rotating the operating element.

[0013] According to one embodiment, the guide rail can have a front end region in the installed position, with the operating element being arranged at the front end region of the guide rail. In other words, the operating element is immediately and directly accessible from the front, i.e. even when the door leaf is fully inserted in the depth direction, for adjustment manually or using a tool. For example, the operating element can be arranged on a front end face of the guide rail in the installed position. This results in simple, intuitive, and convenient adjustment of the stop relative to the guide rail.

[0014] The operating element can be mounted so as to be rotatable about an axis which runs essentially parallel to the longitudinal axis of the guide rail.

[0015] The guide rail can have at least one linear guide for displaceably supporting the stop, wherein the stop can be displaced in or along the at least one linear guide by actuating the adjusting device.

[0016] The guide system can have a transmission mechanism that converts a rotary movement of the operating element into a linear movement of the stop. Converting a rotary movement into a linear movement is a measure known to those skilled in the art and can be achieved, for example, by a rack-and-pinion arrangement, a worm gear, or a threaded spindle-and-nut arrangement. The transmission mechanism also offers the possibility of changing the transmission ratio. For example, the operating element can be driven by a cordless screwdriver at a relatively high speed, whereby the stop can be driven with a small stroke but with great force.

[0017] The transmission mechanism can, for example, comprise at least one coupling rod connected to the at least one stop, wherein the coupling rod can be moved relative to the guide rail by actuating the adjustment device. The guide rail can have at least one guide channel for receiving the coupling rod, whereby the coupling rod can be arranged on the guide rail in a visually unobtrusive manner and securely against any possible interference with fingers or objects. The coupling rod can be designed either as a push lever or as a threaded spindle.

[0018] The at least one stop is arranged on an ejector of an ejection device, by means of which the carrier can be ejected in a direction opposite to the depth direction by overpressing the stop into an overpressing position located behind the end position, wherein the ejection device as a whole can be adjusted relative to the guide rail by the adjusting device.

[0019] Further details and advantages of the invention will become apparent from the following description of the figures. Fig. 1a, 1b show a perspective view of a piece of furniture with a furniture body and furniture parts movable relative thereto, Fig. 2a, 2b show the furniture according to the Figuren 1a, 1b in further positions of the furniture parts relative to one another, Fig. 3 shows the guide system in a perspective view, Fig. 4 shows the guide rail to be arranged on the furniture body in a perspective view, Fig. 5 shows the guide system in an exploded view, Fig. 6a, 6b show side views of the guide system with two different end positions of the support relative to the guide rail.

[0020] Fig. 1a shows a perspective view of a piece of furniture 1 with a furniture body 2 and a folding-sliding door having movable door leaves 3a, 3b; 4a, 4b. The door leaves 3a, 3b and the door leaves 4a, 4b are each movably mounted by a guide system 5 between a first position, in which the door leaves 3a, 3b; 4a, 4b are aligned substantially coplanar to one another, and a second position, in which the door leaves 3a, 3b; 4a, 4b are aligned substantially parallel to one another. In a second (parallel) position, the door leaves 3a, 3b can be inserted into a lateral receiving compartment 8a of the furniture body 2, while the door leaves 4a, 4b can be inserted into a further receiving compartment 8b in a parallel position to one another. The functionality is explained below using door leaves 3a and 3b, whereby the same explanations apply to door leaves 4a, 4b.The guide system 5 comprises a longitudinal rail 7 with a longitudinal direction (L), wherein a carriage 6, which can be coupled to the second door leaf 3b, is mounted so as to be movable along the longitudinal rail 7. In an installed position, the longitudinal rail 7 is arranged substantially horizontally and parallel to a front edge of the furniture body 2.

[0021] Fig. 1b shows the furniture 1, where the door leaves 3a, 3b starting from the Fig. 1a shown coplanar position into an angular position relative to one another. The first door leaf 3a can, for example, be movably mounted on a support 11 via two or more furniture hinges 10, wherein the support 11 can be inserted into the receiving compartment 8a in a depth direction (Z). In the figure shown, the support 11 is in a transfer position, so that the carriage 6 can be transferred between the longitudinal rail 7 and the support 11. In In the transfer position shown, the support 11 is releasably locked to the longitudinal rail 7, whereby the locking between the longitudinal rail 7 and the support 11 can be released by the carriage 6 entering or onto the support 11. The support 11 is designed in the form of an elongated column, the length of which corresponds to at least half the height of the door leaves 3a, 3b. The two door leaves 3a, 3b are connected to one another in an articulated manner about a vertically extending axis via at least one hinge fitting 9. The second door leaf 3b is mounted so as to be movable along the longitudinal rail 7 via the carriage 6.

[0022] Fig. 2a shows the furniture 1 with the door leaves 3a and 3b, which are now aligned parallel to each other. The support 11 has been unlocked by the carriage 6 entering the longitudinal rail 7, so that the support 11 (together with the carriage 6 and the door leaves 3a, 3b) can be moved in the depth direction (Z) along a guide rail 17 ( Fig. 3 ) of the guide system 5 can be inserted into the receiving compartment 8a.

[0023] Fig. 2b shows the furniture 1 with the door leaves 3a, 3b, which are now in a fully inserted state in the receiving compartment 8a. The door leaves 3a, 3b are thus guided by the guide system 5 from a first position according to Fig. 1a , in which the door leaves 3a, 3b are aligned substantially coplanar to each other, and a second position according to Fig. 2b , in which the door leaves 3a, 3b are aligned essentially parallel to each other and can be accommodated within the receiving compartment 8a. In this way, for example, a Figuren 2a, 2b The kitchen 12 shown can be completely covered, so that the kitchen 12 can be visually separated from the remaining area of ​​a living space. In the illustrated embodiment, the storage compartment 8a is formed by a side wall 13a and a fixed furniture part 13b spaced parallel to the side wall 13a, wherein the door leaves 3a, 3b can be inserted in a parallel position to one another between the side wall 13a and the fixed furniture part 13b.

[0024] Fig. 3 shows a perspective view of the guide system 5 in the area between the side wall 13a and the fixed furniture part 13b, between which the receiving compartment 8a for receiving the door leaves 3a, 3b is formed. The longitudinal rail 7 has a longitudinal direction (L), which in an assembled position runs parallel to a front edge of the furniture body 2. A guide rail 17 with a longitudinal direction (L2) is arranged on the fixed furniture part 13b, wherein the longitudinal direction (L) of the longitudinal rail 7 and the longitudinal direction (L2) of the guide rail 17 run transversely, preferably substantially at right angles, to each other. The carrier 11 is designed for the movable mounting of the at least one door leaf 3a, wherein the door leaf 3a in an assembled state, for example, via two or more furniture hinges 10 ( Fig. 1b ) is pivotally mounted on the support 11 about an axis extending vertically in the assembled position. The support 11 has at least one guide device 14, by means of which the support 11 can be moved along the guide rail 17 in the depth direction (Z) and in a direction opposite to the depth direction (Z). In the figure shown, the guide device 14 of the support 11 has at least one roller 14a, which is movably mounted along a first track 17a of the guide rail 17.

[0025] In the illustrated embodiment, the support 11 can be releasably locked to the longitudinal rail 7 via a receiving device 15. The receiving device 15 is designed to receive the carriage 6, such that the carriage 6 can be moved into the receiving device 15 from the longitudinal rail 7. For this purpose, guide grooves 20, 21 can be formed in the longitudinal rail 7, which extend in the longitudinal direction (L) of the longitudinal rail 7 and which, in the transfer position of the receiving device 15, are aligned with corresponding guide grooves 20a, 21a of the receiving device 15. In this way, the rollers of the carriage 6 can be moved without an interfering abutting edge between the longitudinal rail 7 and the receiving device 15.

[0026] For improved decoupling between the receiving device 15 and the carrier 11, it can be provided that the receiving device 15 has at least one support roller 16 which is separate from the guide device 14 of the carrier 11 and is movably mounted along the guide rail 17. It is preferably provided that the guide rail 17 has a first track 17a and at least one second track 17b separate from the first track 17a, wherein the track roller 14a of the guide device 14 is movably mounted along the first track 17a of the guide rail 17 and the at least one support roller 16 of the receiving device 15 is movably mounted along the second track 17b of the guide rail 17.The carrier 11 and the receiving device 15 are connected to one another in a movement-coupled manner during a movement along the guide rail 17 in the depth direction (Z). Preferably, it is provided that the receiving device 15 is coupled to one another without play during a movement along the guide rail 17 in the depth direction (Z) and in a direction opposite to the depth direction (Z). For improved support of the carrier 11, at least one further guide rail 18 can be provided, along which at least one further roller 19 of the carrier 11 is movably mounted.

[0027] Fig. 4 shows a perspective view of the guide rail 17 to be arranged on the fixed furniture part 13b and in the depth direction (Z) of the furniture body 2. An adjustment device 25 with a rotatably mounted operating element 26 is arranged on the front end of the guide rail 17. By rotating the operating element 26 using a tool, at least one stop 28 for determining an end position of the support 11 relative to the guide rail 17 can be adjusted. In the illustrated embodiment, the stop 28 is arranged on an ejector 36 of an ejection device 27.

[0028] By overpressing the stop 28 into an overpressing position arranged behind the end position, the carrier 11 can be ejected by the force of the ejection device 27 in a direction opposite to the depth direction (Z).

[0029] Fig. 5 shows the guide system 5 in an exploded view. The guide rail 17 has a longitudinal direction (L2), wherein the at least one stop 28 is mounted displaceably in the longitudinal direction (L2) by actuating the adjusting device 25. At the front end of the guide rail 17, the operating element 26 is arranged, which is rotatable on a bearing part 30 but immovable in the longitudinal direction (L2). For this purpose, the operating element 26 can have an undercut (for example in the form of a recess) in which the bearing part 30 can be received in a form-fitting manner. The bearing part 30 is to be fastened to the front end region of the guide rail 17 via a first screw 31. The operating element 26 is in threaded engagement with a coupling rod 32 via a threaded portion 37, wherein the coupling rod 32 is movable in the longitudinal direction (L2) by actuating the operating element 26.The coupling rod 32 is connected via a second screw 33 to the ejection device 27, which is displaceably mounted in or along at least one linear guide 34a of the guide rail 17. The ejection device 27 enables the carrier 11 to be ejected in a direction opposite to the depth direction (Z).

[0030] In the illustrated embodiment, two stops 28 are provided, each arranged or formed on an ejector 36 of the ejection device 27. The ejectors 36 each comprise, in a known manner, a lockable energy accumulator, which can be unlocked by moving the stops 28 into an overpressure position arranged behind the end position. The ejection device 27 further comprises an insertion slot 29 for a part of the carrier 11, so that the position of the carrier 11 in the end position can be stabilized in a direction running transversely to the longitudinal direction (L2). By exerting pressure on the furniture parts 3a, 3b in the end position of the carrier 11, the receiving device 15 of the carrier 11 can contact the stops 28 and move them into the overpressure position, so that the energy accumulators of the ejectors 36 can be unlocked and the carrier 11 can be ejected in a direction opposite to the depth direction (Z) by the force of these energy accumulators.

[0031] Fig. 6a shows the guide system 5 in a side view, wherein the carrier 11 assumes a first end position relative to the guide rail 17. The at least one stop 28 is adjustable in the longitudinal direction (L2) of the guide rail 17 by the adjustment device 25. For the displaceable mounting of the stop 28 and / or the ejection device 27, at least one or more linear guides 34a, 34b, 34c can be provided. The linear guide 34a is formed on the guide rail 17, while the two other linear guides 34b, 34c are arranged on the ejection device 27, wherein the linear guides 34b, 34c are displaceable by actuating the adjustment device 25 relative to pins 38a, 38b, which are fixedly mounted relative to the guide rail 17.

[0032] Fig. 6b shows the guide system 5 with the support 11 in a second end position deviating from the first end position. By adjusting the stop 28 to determine an end position of the support 11, manufacturing tolerances of the door leaves 3a, 3b or different widths of the door leaves 3a, 3b can be compensated, so that a front end of the door leaves 3a, 3b inserted into the receiving compartment 8a of the furniture body 2 ( Fig. 2b ) can be aligned flush relative to the front end faces of the side wall 13a and the fixed furniture part 13b. According to one embodiment, it can be provided that the at least one stop 28 can be adjusted by the adjustment device 25 between 0 mm and 50 mm, preferably between 0 mm and 130 mm.

Claims

1. A guide system (5) for guiding at least one door wing (3a), in particular a folding-sliding-door, movably supported relative to a furniture carcass (2), comprising: - at least one guide rail (17) having a longitudinal direction (L2), the longitudinal direction (L2) of the guide rail (17) extending substantially parallel to a depth direction (Z) of the furniture carcass (2) in a mounted condition on the furniture carcass (2), - a carrier (11) for movably supporting the at least one door wing (3a), the carrier (11) being displaceably supported at least over a region along the guide rail (17), - at least one abutment (28) configured to determine an end position of the at least one carrier (11) in the longitudinal direction (L2) of the guide rail (17), wherein the at least one abutment (28) is arranged on an ejector (36) of an ejection device (27) for ejecting the carrier (11) in a direction opposite the depth direction (Z) by overpressing the abutment (28) into an overpressing position located behind the end position, characterized in that - the guide system (5) includes at least one adjustment device (25) for adjusting a position of the at least one abutment (28), and - the at least one abutment (28) is adjustable by the at least one adjustment device (25) in the longitudinal direction (L2) relative to the at least one guide rail (17), - wherein the ejection device (27) is adjustable in its entirety relative to the guide rail (17) by the adjustment device (25).

2. The guide system according to claim 1, characterized in that the adjustment device (25) has a self-locking configuration.

3. The guide system according to claim 1 or 2, characterized in that the adjustment device (25) includes at least one rotationally supported operating element (26), wherein the at least one abutment (28) is adjustable relative to the guide rail (17) by rotating the operating element (26).

4. The guide system according to claim 3, characterized in that the at least one operating element (26) is stationarily arranged in the longitudinal direction (L2) of the guide rail (17) upon a rotation of the operating element (26).

5. The guide system according to claim 3 or 4, characterized in that the guide rail (17) includes a front-end portion in the mounted position, wherein the operating element (26) is arranged on the front-end portion of the guide rail (17).

6. The guide system according to one of the claims 3 to 5, characterized in that the operating element (26) is arranged on a front-end face of the guide rail (17) in a mounted position.

7. The guide system according to one of the claims 3 to 6, characterized in that the operating element (26) is rotationally supported about an axis, the axis extending substantially parallel to the longitudinal direction (L2) of the guide rail (17).

8. The guide system according to one of the claims 3 to 7, characterized in that a transmission mechanism is provided for converting a rotational movement of the operating element (26) into a linear movement of the at least one abutment (28).

9. The guide system according to claim 8, characterized in that the transmission mechanism includes at least one coupling rod (32) connected to the at least one abutment (28), wherein the coupling rod (32) is movable relative to the guide rail (17) by an actuation of the adjustment device (25).

10. The guide system according to claim 9, characterized in that the guide rail (17) includes at least one guide channel (35) extending in the longitudinal direction (L2) of the guide rail (17) for receiving the coupling rod (32).

11. The guide system according to one of the claims 1 to 10, characterized in that at least one linear guide (34a, 34b, 34c) for displaceably supporting the at least one abutment (28) is provided.

12. The guide system according to one of the claims 1 to 11, characterized in that the guide system (5) includes a longitudinal rail (7) extending transversely, preferably substantially at a right angle, to the guide rail (17) in a mounted condition.

13. An item of furniture (1) comprising a furniture carcass (2), at least one door wing (3a) movably supported relative to the furniture carcass (2), and a guide system according to one of the claims 1 to 12 for guiding the door wing (3a) relative to the furniture carcass (2).

14. The item of furniture according to claim 13, characterized in that the guide rail (17) is arranged on the furniture carcass (2) and extends in a depth direction (Z) of the furniture carcass (2), wherein the at least one door wing (3a) is movably connected to the carrier (11) and is movably supported, jointly with the carrier (11), along the guide rail (17) in the depth direction (Z) of the furniture carcass (2).

15. The item of furniture according to claim 14, characterized in that the item of furniture (1) includes at least one second door wing (3b) hingedly connected to the first door wing (3a), wherein the first door wing (3a) and the second door wing (3b) are movably supported between a first position, in which the first door wing (3a) and the second door wing (3b) are aligned substantially coplanar to one another, and a second position, in which the first door wing (3a) and the second door wing (3b) are aligned substantially parallel to one another, wherein the first door wing (3a) and the second door wing (3b), from the second position and jointly with the carrier (11), are movably supported along the guide rail (17) in the depth direction (Z) of the furniture carcass (2).