EP3568552B1 - Guiding system for cabinet doors - Google Patents

Description

• eine erste Führungsschiene zur Führung der Möbelteile,
• eine zweite Führungsschiene zur Führung der Möbelteile, wobei die zweite Führungsschiene in Montagelage relativ zur ersten Führungsschiene quer verläuft,
• eine mit dem ersten Möbelteil verbindbare und relativ zur ersten und zweiten Führungsschiene bewegbare Führungsvorrichtung, welche wenigstens ein erstes Beschlagteil zur Befestigung des ersten Möbelteiles aufweist,
• einen Träger, welcher relativ zur zweiten Führungsschiene verfahrbar ist und welcher mit wenigstens einem zweiten Beschlagteil zur Befestigung des zweiten Möbelteiles verbunden ist,
• eine erste Antriebsvorrichtung, durch welche die Führungsvorrichtung ausgehend von der zweiten Führungsschiene zumindest abschnittsweise in Richtung der ersten Führungsschiene antreibbar ist,
• wobei das Führungssystem zumindest eine zweite Antriebsvorrichtung aufweist, durch welche die Führungsvorrichtung ausgehend von der ersten Führungsschiene in eine Lage bewegbar ist, in welcher das erste Beschlagteil und das zweite Beschlagteil so zueinander ausgerichtet sind, dass die im Montagezustand mit den Beschlagteilen verbundenen Möbelteile im Wesentlichen komplanar zueinander ausgerichtet sind.

The present invention relates to a guide system for guiding a movably mounted first furniture part, in particular a first door leaf of a folding door, which is articulated to at least a second furniture part, in particular a second door leaf of a folding door, comprising:

• a first guide rail for guiding the furniture parts,
• a second guide rail for guiding the furniture parts, the second guide rail extending transversely in relation to the first guide rail in the installed position,
• a guide device which can be connected to the first furniture part and can be moved relative to the first and second guide rails and which has at least one first fitting part for fastening the first furniture part,
• a carrier which is movable relative to the second guide rail and which is connected to at least one second fitting part for fastening the second furniture part,
• a first drive device, by means of which the guide device can be driven at least in sections in the direction of the first guide rail, starting from the second guide rail,
• wherein the guide system has at least one second drive device, by means of which the guide device can be moved, starting from the first guide rail, into a position in which the first fitting part and the second fitting part are aligned with one another such that the furniture parts connected to the fitting parts in the assembled state are essentially coplanar are aligned with each other.

Furthermore, the invention relates to an arrangement with two furniture parts which are connected to one another in an articulated manner, in particular door leaves of a folding door, and with a guide system of the type to be described. The invention further relates to furniture with such an arrangement or with such a guide system.

In the WO 2016/081961 A1 and in the WO 2016/081963 A1 Mechanical drive devices for folding sliding doors are shown, the folding sliding door being movable from a side shaft, in which the door leaves assume a folded position relative to one another, into a position outside the shaft, in which the door leaves can be spread apart. The disadvantage of this is that the door leaves are in an undefined intermediate position after spreading. From the DE 29809193U1 a guidance system with the features of the introductory part of claim 1 is known.

The object of the present invention is to provide a guidance system of the type mentioned at the outset with a more convenient operating option.

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, it is therefore provided that the guide system has at least one second drive device, by means of which the guide device can be moved, starting from the first guide rail, into a position in which the first fitting part and the second fitting part are aligned with one another in such a way that, in the assembled state, the the furniture parts connected to the fitting parts are essentially coplanar to one another.

The proposed guide system makes it possible for the furniture parts in the assembled state to be transferred from a first position, in which the furniture parts are aligned parallel to one another, to a second position, in which the furniture parts are aligned essentially coplanar with one another. The second drive device thus allows the furniture parts to be moved into a defined end position in the assembled state, namely to the one in which the furniture parts are essentially coplanar with one another.

Fig. 1a, 1b

ein Möbel einem Führungssystem zum Antrieb von Möbelteilen, welche sich einerseits in einer in einem Schacht versenkten Stellung und andererseits in einer aus dem Schacht herausgefahrenen Stellung befinden,

Fig. 2a, 2b

das Möbel gemäß Fig. 1a, 1b mit den Möbelteilen in zwei weiteren Stellungen,

Fig. 3a, 3b

das Möbel mit dem Führungssystem in einer perspektivischen Darstellung sowie eine vergrößerte Detaildarstellung hierzu,

Fig. 4a, 4b

die auf dem Träger befindliche Führungsvorrichtung sowie eine vergrößerte Detaildarstellung hierzu,

Fig. 5a, 5b

eine Seitenansicht des Führungssystems sowie eine vergrößerte Detaildarstellung hierzu,

Fig. 6a-6d

den Einzugsvorgang des Trägers in zwei aufeinanderfolgenden Stellungen sowie vergrößerte Detaildarstellungen hierzu,

Fig. 7a-7d

den Ausstoßvorgang in zwei aufeinanderfolgenden Stellungen sowie vergrößerte Detaildarstellungen hierzu,

Fig. 8a-8d

fortgesetzte Stellungen ausgehend von Fig. 7a, 7b sowie vergrößerte Detaildarstellungen hierzu,

Fig. 9a, 9b

ein mögliches Ausführungsbeispiel einer lösbaren Verriegelung zwischen Träger und Führungsschiene in zwei aufeinanderfolgenden Stellungen,

Fig. 10a, 10b

fortgesetzte Stellungen ausgehend von Fig. 9a, 9b,

Fig. 11a, 11b

das Führungssystem mit dem Träger in einer ersten Stellung sowie eine vergrößerte Detaildarstellung hierzu,

Fig. 12a, 12b

das Führungssystem mit dem Träger in einer zweiten Stellung sowie eine vergrößerte Detaildarstellung hierzu

Fig. 13a, 13b

die an der Führungsschiene bewegbar gelagerte Führungsvorrichtung in einer perspektivischen Ansicht sowie in einem Querschnitt,

Fig. 14a-14d

ein mögliches Ausführungsbeispiel einer Aufspreizvorrichtung zum Aufspreizen der Möbelteile sowie schematische Darstellungen des Aufspreizvorganges,

Fig. 15a, 15b

die zweite Antriebsvorrichtung in einer perspektivischen Ansicht sowie in einem Querschnitt,

Fig. 16a, 16b

die zweite Antriebsvorrichtung in einer ersten Relativstellung, in welcher die Möbelteile im Montagezustand parallel zueinander ausgerichtet sind, und in einer zweiten Relativstellung,

Fig. 17a, 17b

die zweite Antriebsvorrichtung in einer dritten Relativstellung und in einer vierten Relativstellung, in welcher die Möbelteile im Montagezustand koplanar zueinander ausgerichtet sind,

Fig. 18

die zweite Antriebsvorrichtung in einer Explosionsdarstellung.

It is provided according to the invention that the drive devices provided for moving the furniture parts function exclusively mechanically, ie without an electrical drive and without further electrical components. Further details and advantages of the present invention are explained on the basis of the following description of the figures. It shows:

1a, 1b

a piece of furniture is a guide system for driving furniture parts which are on the one hand in a recessed position in a shaft and on the other hand in a position moved out of the shaft,

2a, 2b

the furniture according to 1a, 1b with the furniture parts in two other positions,

3a, 3b

the furniture with the guide system in a perspective view and an enlarged detail view of this,

4a, 4b

the guiding device on the carrier and an enlarged detailed illustration of this,

5a, 5b

a side view of the guide system and an enlarged detail view of this,

6a-6d

the retraction process of the carrier in two successive positions as well as enlarged detailed representations,

Figures 7a-7d

the ejection process in two successive positions as well as enlarged detailed representations,

Figures 8a-8d

continued positions from 7a, 7b as well as enlarged detailed representations,

9a, 9b

A possible embodiment of a releasable locking between carrier and guide rail in two successive positions,

10a, 10b

continued positions from 9a, 9b ,

11a, 11b

the guide system with the carrier in a first position and an enlarged detailed illustration of this,

Figures 12a, 12b

the guidance system with the carrier in a second position and an enlarged detail view of this

13a, 13b

the guide device movably mounted on the guide rail in a perspective view and in a cross section,

14a-14d

a possible embodiment of a spreading device for spreading the furniture parts as well as schematic representations of the spreading process,

15a, 15b

the second drive device in a perspective view and in a cross section,

16a, 16b

the second drive device in a first relative position, in which the furniture parts are aligned parallel to one another in the assembled state, and in a second relative position,

17a, 17b

the second drive device in a third relative position and in a fourth relative position, in which the furniture parts are coplanar to one another in the assembled state,

Fig. 18

the second drive device in an exploded view.

Fig. 1a shows a possible application of a guide system 2 for guiding a first furniture part 3a, preferably in the form of a first door leaf of a folding door, the first furniture part 3a being articulated in the installed position via a vertically extending axis 5a to a second furniture part 3b in the form of a second door leaf. Optionally, at least two further furniture parts 4a, 4b can also be provided, which are also pivotally connected to one another via a vertically extending axis 5b. The furniture parts 3a, 3b and 4a, 4b are movably supported by the guide system 2 relative to a furniture body 36 of a piece of furniture 37 which is stationary during operation. The guidance system 2 can be used, for example, as a room division system, so that in a living space as in Fig. 1a shown furniture body 6 in the form of a kitchen block, an office niche, a storage room, a shelf, etc. by the furniture parts 3a, 3b; 4a, 4b can be completely concealed and can thus be optically separated from the rest of the living area. The guide system 2 can also be used for cupboard systems, such as a walk-in cupboard. The mode of operation is explained below with reference to furniture parts 3a and 3b, the same statements being valid for furniture parts 4a, 4b.

The furniture parts 3a, 3b are guided by the guide system 2 between a first position in which the furniture parts 3a, 3b are aligned essentially parallel to one another ( Fig. 1a ) and a second position, in which the furniture parts 3a, 3b are essentially coplanar with each other, movably mounted. In the first position, the furniture body 6 is freely accessible for one person, the two furniture parts 3a, 3b being able to be accommodated in a space-saving manner in an insertion slot 7a provided laterally next to the side wall 8a. The two other furniture parts 4a, 4b can also be received in a further lateral insertion slot 7b in a position parallel to one another.

The guide system 2 comprises a first guide rail 9 with a longitudinal direction (L) for guiding the furniture parts 3a, 3b. This guide rail 9 can, for example, be attached to a ceiling, a wall or also to the fixed furniture body 36. The guide system 2 further comprises at least one (not shown here) second guide rail 13a, which in the assembled state runs transversely to the longitudinal direction (L) of the first guide rail 9 and through which the furniture parts 3a, 3b in one direction (Z) or in one direction (Z) opposite direction are movable. Furthermore, a guide device 10 (which can be connected to the first furniture part 3a and is movable relative to the first and second guide rails 9, 13a) ( Fig. 2a ) intended. The two other furniture parts 4a, 4b are movably supported by a separate guide device 10a. Starting from the in Fig. 1a shown position, in which the furniture parts 3a, 3b assume a parallel position to one another and are accommodated in the lateral insertion shaft 7a, the furniture parts 3a, 3b can be moved by mechanical force in direction (Z) into an overpressure position, whereby a (not visible here) first drive device 12 can be triggered. After the first drive device 12 has been triggered, the furniture parts 3a, 3b are inserted into the in FIG Fig. 1b shown position movable, in which the furniture parts 3a, 3b are located outside the slot 7a and continue to assume a substantially parallel position to each other. Starting from the in Fig. 1b position, the two furniture parts 3a, 3b - if necessary - by a spreading device 46 ( 14a ) moving from the parallel position to each other in a spread position to each other, so that the furniture parts 3a, 3b assume an angular position to each other.

Fig. 2a shows one too Fig. 1b continued movement of the furniture parts 3a, 3b to each other, the other two furniture parts 4a, 4b have already been moved into a position in which the furniture parts 4a, 4b are coplanar with each other and thereby cover the furniture body 6. The guide device 10 has at least one first fitting part 41 for fastening the first furniture part 3a. The guide system 2 comprises a carrier 11 ( Fig. 3b ), which is movably mounted transversely to the longitudinal direction (L) of the first guide rail 9 and which is connected to at least one second fitting part 18 for fastening the second furniture part 3b. In the exemplary embodiment shown, the carrier 11 has a vertically running column 14 connected, which is mounted together with the carrier 11 in the direction transverse to the longitudinal direction (L) of the first guide rail 9 in the direction (Z). In this case, two or more fitting parts 18 for movably mounting the second furniture part 3b can be arranged on the vertical column 14, which are spaced apart from one another in the vertical direction of the column 14. The guide device 10 connected to the first furniture part 3a can be transferred back and forth between the first and second guide rails 9, 13a in an intersection area 45, seen in a top view of the first and second guide rails 9, 13a in the installed position. By a second drive device 53 ( 15a ), the guide device 10 can be moved from the first guide rail 9 into a position in which the first fitting part 41 of the guide device 10 and the second fitting part 18 are aligned with one another in such a way that the furniture parts 3a, 3b connected to the fitting parts 41, 18 in the assembled state are substantially coplanar with each other, as in Fig. 2b is shown.

Fig. 3a shows the furniture 37 in a perspective view, the first guide rail 9 and at least one second guide rail 13a for guiding the furniture parts 3a, 3b being visible. In the exemplary embodiment shown, two second guide rails 13a, 13b are provided, which are spaced apart from one another in the height direction. The carrier 11 - together with the column 14 connected thereto - can be moved in the direction (Z) and in an opposite direction in the direction (Z). The first guide rail 9 and the second guide rail 13a can be designed as separate components, which in the assembled state can either have the same or a different height. Alternatively, it is possible for the first guide rail 9 and the second guide rail 13a to be formed in one piece with one another and to be connected to one another via an arcuate section. The crossing area 45 results in a plan view through the area in which the guide rails 9, 13a or imaginary extensions of the guide rails 9, 13a intersect with one another. The guide system 2 comprises a first drive device 12, by means of which the guide device 10 can be drawn in at least in sections in the direction of the first guide rail 9 starting from the second guide rail 13a and / or at least in sections starting from the crossing region 45 along the second guide rail 13a.

Fig. 3b shows the in Fig. 3a circled area in an enlarged view. The first furniture part 3a is connected to a guide device 10, by means of which the furniture parts 3a, 3b are movably mounted along the first and second guide rails 9, 13a. One can see a carrier 11 separate from the guide rail 9 in the form of a movable carriage which, in a transfer position in the longitudinal direction (L), adjoins the first guide rail 9 in such a way that the guide device 10 connected to the first furniture part 3 a between the first guide rail 9 and the carrier 11 is transferable back and forth. The guide device 10 can have at least one first roller 15a with a vertical axis of rotation for absorbing lateral forces and at least one second roller 15b with a horizontal axis of rotation for absorbing vertical forces, the rollers 15a, 15b along a longitudinal section (L) of the profile section 9a Guide rail 9 are movably mounted. The carrier 11 also has a profile section 11a with a cross section, which corresponds to a shape and size of the profile section 9a in cross section, so that the guide device 10 can be transferred back and forth between the first guide rail 9 and the carrier 11. The carrier 11 can, for example, have at least two guide channels 16a, 16b running in the longitudinal direction (L) for guiding the rollers 15a, 15b.

The guide device 10, which is displaceable along the first guide rail 9, is still located on the first guide rail 9 in the transfer position of the carrier 11 shown. The carrier 11 can be releasably locked in the transfer position with the first guide rail 9, this locking by retracting or opening the guide device 10 in or on the carrier 11 is detachable. After unlocking, the carrier 11 - together with the guide device 10 and the two furniture parts 3a, 3b - can be moved in a horizontal, transverse, preferably perpendicular, direction (Z) to the longitudinal direction (L) of the first guide rail 9. The carrier 11 is connected to the vertically extending column 14, which can be driven by the first drive device 12 at least in sections in the direction (Z) and / or in a direction opposite to the direction (Z). The column 14 is movably mounted relative to second guide rails 13a and 13b, which are spaced apart in height from the first guide rail 9.

Fig. 4a shows the furniture parts 3a and 3b after this starting from Fig. 3a were pivoted about the vertical axis 5a to one another and now assume a substantially parallel position to one another. Fig. 4b shows the in Fig. 4a circled area in an enlarged view, the guide device 10 being located on the carrier 11 in the transfer position. It can be provided that a length of the carrier 11 measured in the longitudinal direction (L) is greater than a width of the guide device 10 measured in the longitudinal direction (L). The profile section 9a of the guide rail 9 and the profile section 11a of the carrier 11 are preferably of identical design in cross section and aligned in alignment in the transfer position, so that the rollers 15a, 15b of the guide device 10 without a disturbing abutting edge between the first guide rail 9 and the carrier 11 and can be moved here. Starting from the in Fig. 4b shown position, the carrier 11 together with the guide device 10 (and thus the furniture parts 3a, 3b) can be driven at least in sections in the direction (Z) by the force of the first drive device 12.

Fig. 5a shows a side view of the carrier 11 in the transfer position, which is connected to the vertically extending column 14. The column 14 - together with the carrier 11 - can be moved in the direction (Z), for example, via support rollers 17a, 17b along second guide rails 13a, 13b fastened to the side wall 8a. At least one fitting part 18 for movably mounting the furniture part 3b is arranged on the column 14, it preferably being provided that the fitting part 18 forms part of the second drive device 53 ( 15a, 15b ) through which the furniture parts 3a, 3b can be moved from one another in a parallel position to a coplanar position. A bearing part 24 is arranged on the column 14, on which at least one, preferably several, energy accumulators 21 of the first drive device 12 for anchoring the furniture parts 3a, 3b are anchored in the direction (Z). In the figure shown, the force accumulators 21 are each designed as tension springs which engage a driver 20 which is pivotably mounted on the column 14 about an axis of rotation 19. On the driver 20, a pressure roller 22 is rotatably mounted, which can be pressed by the force of the energy accumulator 21 against a concave cam 23 of the first drive device 12 and which can be moved along this cam 23 when the column 14 moves in the direction (Z).

The control curve 23 comprises a pull-in section 23a for the partial pull-in of the carrier 11 in the direction (Z) and a tensioning section 23b adjoining the pull-in section 23a for charging the energy stores 21. In Fig. 5a the energy accumulators 21 are in a tensioned state, so that the column 14 (and thus the carrier 11) after the carrier 11 has been unlocked from the first guide rail 9 by the force of the relaxing energy accumulators 21 along the pull-in section 23a to the deepest region of the Control curve 23 is retractable. As a result, the furniture parts 3a, 3b are also partially drawn into the insertion slot 7a, as a result of which they are advantageously pre-positioned in the direction (Z) for continued movement in the insertion slot 7a. Subsequent manual exertion of pressure on the furniture parts 3a, 3b which are aligned parallel to one another in the region of the axis of rotation 5a, the column 14 (and thus the pressure roller 22) is moved further in the direction (Z) along the tensioning section 23b of the control cam 23, the energy stores 21 being reloaded become. When the pressure roller 22 of the driver 20 reaches the end region 23c of the control cam 23, the energy stores 21 are fully charged, so that the furniture parts 3a, 3b are moved by the energy stores 21 during an extension movement in the opposite direction (Z) from one in the insertion slot 7a fully inserted position can be moved at least in sections against the direction (Z). In addition, a movably mounted switch 25, preferably tiltable about an axis of rotation 25a, is provided with an actuating contour 25c, the pressure roller 22, starting from said inserted position, being movable along the actuating contour 25c of the switch 25 during a movement in the opposite direction (Z). It is thereby achieved that the pressure roller 22, which is biased by the energy accumulators 21, does not have to overcome the obstructing pull-in section 23a of the control cam 23 during a movement in the direction (Z), so that the pull-in section 23a can be bypassed by the pressure roll 22 and the force of the force accumulators 21 a longer distance remains. Fig. 5b shows the in Fig. 5a circled area in an enlarged view.

Fig. 6a shows a continued movement of the column 14 (and thus the support 11) in the direction (Z). Due to the decreasing distance of the control curve 23 in the feed section 23a ( Fig. 3a ) in relation to the bearing part 24, the energy storage devices 21 are relaxed and pull the column 14 or the support 11 in the direction (Z). Fig. 6b shows the in Fig. 6a circled area in an enlarged view. Has the Pressure roller 22 reaches the deepest area of the control curve 23, the pressure roller 22 is moved by manual application of force on the movable furniture parts 3a, 3b onto the tensioning section 23b of the control curve 23, so that the energy stores 21 can be recharged. The switch 25 which can be tilted about the axis of rotation 25a is raised by the pressure roller 22 ( Fig. 6c ), so that the pressure roller 22 moves freely in the direction (Z) past the switch 25 and can be moved further along the tensioning section 23b. Due to the eccentric articulation of the switch 25 about the axis of rotation 25a, a two-armed lever with lever arms of different lengths is formed, so that the switch 25 with the longer lever arm, preferably exclusively under the force of gravity, lies loosely against the tensioning section 23b of the control cam 23. If appropriate, the switch 25 can also be pressed against the cam 23 by a spring element. Fig. 6d shows the in Fig. 6c circled area in an enlarged view.

Fig. 7a shows the position of the column 14 shortly before reaching the end position fully inserted into the slot 7a. The pressure roller 22 has been moved along the tensioning section 23b of the control cam 23 and is located shortly before the horizontally running end region 23c of the control cam 23, so that the column 14 is neither accelerated in the direction (Z) nor counter to the direction (Z). The energy stores 21 are fully charged. A housing 29 is arranged on the column 14, in which a damping device 27 for damping a closing movement of the column 14 or the carrier 11 is arranged. In the exemplary embodiment shown, the damping device 27 comprises two, preferably hydraulic, linear dampers connected in parallel, each with a piston-cylinder unit. Towards the end of the closing movement of the column 14, these linear dampers strike a stationary stop 26, as a result of which the tappets of the linear dampers are pressed in and the movement of the column 14 can thus be braked. In addition, two ejection devices 28, each with a lockable energy store, are arranged in the housing 29, the two plungers of the ejection devices 28 interacting with the stop 26 during the closing movement of the column 14, so that the energy stores of the ejection devices 28 can be charged and locked in a charged state. Fig. 7b shows the in Fig. 7a circled area in an enlarged view.

Fig. 7c shows the end position of the column 14, the last closing movement of the column 14 being braked by the damping device 27 and the lockable energy stores of the ejection devices 28 being charged. By pushing the column 14 starting from its closed position into a press-over position lying behind the closed position, the ejection devices 28 can be moved into an unlocking position, whereupon the column 14 can be moved against the direction again by the force of the ejection devices 28 and then by the force of the charged energy accumulator 21 (Z ) can be driven. Fig. 7d shows the in Fig. 7c circled area in an enlarged view.

Fig. 8a shows a position of the column 14 after ejection by the ejection devices 28 against the direction (Z). The pressure roller 22 is in this case in a position moving onto the switch 25, the pressure roller 22 no longer being able to be moved along the feed section 23a during a movement against the direction (Z), but along the adjusting contour 25c arranged or formed on the switch 25. In this way, an evenly extending ejection process of the column 14 or the furniture parts 3a, 3b is brought about without substantial fluctuations in the force of the energy accumulator 21, the force of the energy accumulator 21 being retained over a longer distance. Fig. 8b shows the in Fig. 8a circled area in an enlarged view, the pressure roller 22 moving against the direction (Z) on the adjusting contour 25c of the switch 25 when the column 14 moves, without the pressure roller 22 having to be moved along the trough of the feed section 23a.

Fig. 8c shows a continued movement of the column 14 in the opposite direction (Z), the pressure roller 22 having been moved along the positioning contour 25c of the switch 25 and the switch 25 being pivoted about the axis of rotation 25a in the counterclockwise direction. Due to this pivoting movement of the switch 25 about the axis of rotation 25a, the pressure roller 22 is returned to the initial region of the tensioning section 23a. After the pressure roller 22 has left the actuating contour 25c of the switch 25, the switch 25 tilts back about the axis of rotation 25a back to the starting position, ie into the position in which the longer lever arm of the switch 25 due to its higher weight again on the control cam 23 is present.

9a and 9b show a possible embodiment of a locking device 30, by means of which the carrier 11 can be locked with the first guide rail 9 in the transfer position or a parking position and which can be unlocked by moving the guide device 10 into or onto the carrier 11. The first furniture part 3a is connected to the guide device 10, which can be moved in the longitudinal direction (L) along the first guide rail 9. A sliding piece 33 is coupled to the guide device 10 so that it moves, so that when the guide device 10 moves along the first guide rail 9, the sliding piece 33 also moves. The sliding piece 33 has a projection 33a, which cooperates with a counter stop 35a of a coupling lever 35 when entering or onto the carrier 11 ( Fig. 9b ). The coupling lever 35 is rotatably mounted about an axis of rotation 31, a locking element 35c being movable through the coupling lever 35, which engages in the locking position in a corresponding recess 34 of the first guide rail 9 and thereby locks the carrier 11 relative to the first guide rail 9. It can be provided that the coupling lever 35 is formed in one piece with the locking element 35c. The coupling lever 35 can be biased in the direction of the locking position by a spring (not shown) so that the carrier 11 can be automatically locked again with the guide rail 9 by the force of this spring during a movement against the direction (Z) and the guide device 10 starting from the carrier 11 is transferable back to the guide rail 9.

10a and 10b show a continued movement of the sliding piece 33 which is motion-coupled to the guide device 10 in the longitudinal direction (L), the projection 33a of the sliding piece 33 interacting with the counter-stop 35a of the coupling lever 35 and thus pivoting the coupling lever 35 about the axis of rotation 31, so that the latching element 35c out of the Recess 34 of the guide rail 9 is moved out, thereby releasing the carrier 11 relative to the guide rail 9 for movement in the (Z) direction. After unlocking, the carrier 11 can - together with the column 14 - be pulled in at least in sections in the direction (Z) by the force of the energy accumulator 21 of the first drive device 12 described above, the spacer roller 32 rotatably mounted on the sliding piece 33 for lateral guidance of the carrier 11 can be rolled in the direction (Z) on the side wall 8a.

Fig. 11a shows the guide system 2, wherein the carrier 11 can be locked by the described locking device 30 with the first guide rail 9 and, starting from the transfer position, can be moved in a direction (Z) transverse to the longitudinal axis (L). On the side wall 8a, which can partially form the insertion shaft 7a, second guide rails 13a and 13b for the displaceable mounting of the column 14 connected to the support 11 and the first drive device 12 with the switch 25 which can be tilted about the axis of rotation 25a are fastened.

Fig.11b shows the in Fig. 11a circled area in an enlarged view, the carrier 11 has already been moved out of the transfer position and has been moved slightly in the direction (Z). In order to limit a movement of the carrier 11 against the direction (Z), at least one stop element 38 is provided on the carrier 11, which can abut against a counter stop 39 of the first guide rail 9 and thus prevent further movement of the carrier 11 against the direction (Z) . At least one support roller 17a can be provided for the displaceable guidance of the carrier 11 or the column 14, which can be rolled on a catwalk arranged or formed on the second guide rail 13a. The damping device 27 mounted on the column 14 can be seen, which is provided for damping a movement of the column 14 within an end position area remote from the transfer position.

Fig. 12a shows the carrier 11 in a position removed from the first guide rail 9, which corresponds to a position of the furniture parts 3a, 3b fully inserted into the insertion shaft 7a. Starting from the in Fig. 12a In the position shown, the furniture parts 3a, 3b can be ejected against the direction (Z) by the ejection devices 28 (not shown here). Fig. 12b shows the in Fig. 12a circled area in an enlarged view.

13a shows the guide device 10 movably mounted on the first guide rail 9 in a perspective view. The guide device 10 can have a plurality of rollers 15a, 15c, 15d, 15e with vertical and with horizontally running axes of rotation, the rollers 15a, 15c, 15d, 15e being movably supported along a profile section 9a of the first guide rail 9. The Guide device 10 comprises a holding arm 40, a fitting part 41 to be fastened to the first furniture part 3a being pivotably connected to the holding arm 40 via an axis of rotation 44 which runs vertically in the installed position. The fitting part 41 has a plurality of fastening points 42a, 42b for fastening to the first furniture part 3a.

Fig. 13b shows the guide device 10 movably mounted on the first guide rail 9 in a cross section. The first guide rail 9 has a plurality of cavities 43 in cross section, which are separated from one another by profile webs. The rollers 15a, 15c, 15d, 15e can be moved along the first guide rail 9, the fitting part 41 to be fastened to the furniture part 3a being pivotably connected to the holding arm 40 via the vertically running axis of rotation 44.

14a shows a possible embodiment of a spreading device 46 for spreading the furniture parts 3a, 3b after they have been moved out of the side insertion shaft 7b. The expanding device 46 comprises a mounting part 47 to be fastened to one of the furniture parts 3a, 3b, which has one or more bores 52 for the passage of a screw. On the mounting part 47, an expansion lever 49 is pivotally mounted about an axis 48. A spring element 50 (here a tension spring) is fastened to a bearing pin 51 and constantly pulls the expansion lever 49 about the axis 48 in the direction of the arrow shown. Due to the spreading device 46, the two furniture parts 3a, 3b therefore constantly have the tendency to be pressed apart. If the two furniture parts 3a, 3a have now completely moved out of the lateral insertion shaft 7a, the furniture parts 3a, 3b are moved into a further position by the spring-loaded expansion lever 49, starting from a position in which the furniture parts 3a, 3b are aligned parallel to one another , in which the two furniture parts 3a, 3b assume an angular position relative to one another, pressed apart, the guide device 10 connected to the first furniture part 3a being movable along the first guide rail 9 by the force of the spring element 50 and thus also pulling the second furniture part 3b ( Figures 14b-14d ).

15a shows a possible embodiment of a second drive device 53, by means of which the furniture parts 3a, 3b can be driven from one another in a parallel or angular position to a coplanar position. The second Drive device 43 comprises at least one actuating arm 67 connected to the second fitting part 18, a spring device 59 for applying force to the at least one actuating arm 67, a control cam 66 and a roller 61 loaded by the spring device 59, the roller 61 during a movement of the at least one actuating arm 67 is movably supported along the control cam 66. Furthermore, the second drive device 53 comprises a stop part 54 which is to be fastened, for example, to the vertically extending column 14. The stop part 54 is constructed here in two parts and comprises a first part 54a for attachment to the column 14 and a second part 54b, a position of the second part 54b relative to the first part 54a being adjustable by rotating an adjusting wheel 68. The second part 54b is connected via an axis 64 to an intermediate piece 63, on which the control cam 66 is arranged or formed. The intermediate piece 63 is connected via a further axis 65 to a housing part 60, on which the roller 61 is rotatably mounted about an axis 62 and which can be pressed against the control cam 66 by the force of the spring device 59. The housing part 60 is designed to at least partially accommodate the spring device 59 and is displaceably mounted relative to the actuating arm 67, which is connected in an articulated manner via the axis 55 to the fitting part 18 to be fastened to the second furniture part 3b. The force of the spring device 59 exerted on the second furniture part 3a can be adjusted by means of an adjusting device 56 with an adjusting screw 57, a stop element 58 being adjustable along a threaded section arranged on the adjusting screw 57 by turning the adjusting screw 57 by means of a tool. The spring device 59, designed as a compression spring, is supported with a first end region on this stop element 58, which can be created by rotating the adjusting screw 57 along the threaded portion of the adjusting screw 57 and thereby prestressing the spring device 59 differently. The second end of the spring device 59 presses against the roller 61, which can be moved along the control cam 66 by a movement of the actuating arm 67.

Fig.15b shows the second drive device 53 according to 15a in a cross section, the roller 61 being releasably locked to a first locking section 66a of the control cam 66, so that the two furniture parts 3a, 3b are held in a coplanar position with one another with a predetermined force in the assembled state. The first locking section 66a of the control cam 66 is here for receiving the roller 61 trough-shaped, the roller 61 being moved out of the trough-shaped locking section 66a by a movement of the fitting part 18 and after overcoming a holding force and can be moved further along the control cam 66.

Fig. 16a shows a cross section of the second drive device 53 according to 15a and 15b , wherein the fitting part 18 is positioned such that the two furniture parts 3a, 3b are aligned parallel to one another in the assembled state and can be moved into and out of the side insertion slot 7a. The roller 61 loaded by the spring device 59 is releasably locked with a second trough-shaped locking section 66b of the control cam 66, so that the two furniture parts 3a, 3b are held in a parallel position with a predetermined force in the assembled state. After moving out of the lateral insertion shaft 7a, the furniture parts 3a, 3b can be moved, for example, by 14a Spreading device 46 shown are spread out, the roller 61 moving out of the second locking section 66b and - as in FIG Fig. 16b is shown - can move further along the control cam 66, the furniture parts 3a, 3b moving in the direction of the coplanar position, starting from the position oriented parallel to one another.

Fig. 17a shows one to the 16a and 16b continued movement of the second drive device 53, so that the two furniture parts 3a, 3b also move further in the direction of the coplanar position. When the roller 61 enters the first locking section 66a of the cam 66, the spring device 59 designed as a compression spring can relax, so that the roller 61 is pressed into the first locking section 66a by the force of the expanding spring device 59, as in FIG Fig. 17b is shown. In this way, the fitting part 18 (which is connected to the second furniture part 3b in the assembled state) is moved into a position in which the fitting part 18 and the fitting part 41 of the guide device 10 ( 13a ) are aligned with each other such that the furniture parts 3a, 3b connected to the fitting parts 18, 41 in the assembled state are aligned essentially coplanar with each other.

Fig. 18 shows the second drive device 53 in an exploded view. The second drive device 53 comprises the fitting part 18 for fastening to the second furniture part 3b and a stop part 54, which is preferably to be fastened to the vertical column 14, which is articulated via the axis 64 to the intermediate piece 63 and via the axis 65 to the actuating arm 67 . The actuating arm 67 is pivotally connected to the fitting part 18 via the axis 55. The fitting part 18 has at least one fastening point 70 for fastening to the second furniture part 3b, the stop part 54 is to be mounted on the column 14 by at least one fastening means 69. The control cam 66 can be contoured in such a way that the second furniture part 3b connected to the fitting part 18 - starting from the position in which the two furniture parts 3a, 3b are coplanar to one another, starting from the force of the spring device 59 within an angular range of approximately 40 ° to said coplanar position can be driven.

Reference list

1

Track arrangement

2nd

Guidance system

3a, 3b

Furniture parts

4a, 4b

Furniture parts

5a, 5b

vertical axes of rotation

6

Furniture body

7a, 7b

Slots

8a, 8b

side walls

9

Guide rail

9a

Profile section guide rail

10th

Guide device

11

carrier

11a

Profile section beam

12th

Infeed device

13a, 13b

second guide rails

14

pillar

15a, 15b, 15c, 15d, 15e

Casters

16a, 16b

Guide channels

17a, 17b

Support rollers

18th

Fitting part

19th

Axis of rotation driver

20

Carrier

21

Lift mechanism

22

Pressure roller

23

Control curve

23a

Control curve feed section

23b

Clamping section control curve

23c

End area control curve

24th

Bearing part

25th

Switch

25a

Turnout axis

25c

Setting contour switch

26

stationary stop

27

Damping device

28

Ejectors

29

casing

30th

Locking device

31

Coupling lever rotation axis

32

Spacer roll

33

Sliding piece

33a

Projection sliding piece

34

Recess guide rail

35

Coupling lever

35a

Counterstop coupling lever

35c

Locking element coupling lever

36

Furniture body

37

Furniture

38

Stop element carrier

39

Counterstop guide rail

40

Holding arm guide device

41

Fitting part guide device

42a, 42b

Fastening points guide device

43

Cavities guide rail

44

Rotation axis fitting part

45

Crossing area

46

Spreading device

47

Assembly part

48

axis

49

Spreading lever

50

Spring element

51

Bearing bolt

52

drilling

53

second drive device

54

Stop part

55

axis

56

Adjusting device

57

Adjusting screw

58

Stop element

59

Spring device

60

Housing part

61

role

62

axis

63

Spacer

64

axis

65

axis

66

Control curve

67

Control arm

68

Adjustment wheel

69

Fasteners

70

Attachment point

Claims (15)

1. A guide system (2) for guiding a movably-supported first furniture part (3a), in particular a first door wing of a folding door, which is hingedly connected to at least one second furniture part (3b), in particular a second door wing of a folding door, comprising:

   - a first guide rail (9) for guiding the furniture parts (3a, 3b),

   - a second guide rail (13a) for guiding the furniture parts (3a, 3b), the second guide rail (13a), in the mounted position, extending transversely relative to the first guide rail (9),

   - a guiding device (10) which can be connected to the first furniture part (3a), which is movable relative to the first and second guide rails (9, 13a) and which has at least one fitting portion (41) for fastening to the first furniture part (3a),

   - a carrier (11) which is displaceable relative to the second guide rail (13a) and which is connected to at least one second fitting portion (18) for fastening to the second furniture part (3b),

   - a first drive device (12) for moving the guiding device (10), starting from the second guide rail (13a), at least over a region in a direction of the first guide rail (9),

   - wherein the guide system (2) includes at least one second drive device (53) for moving the guiding device (10), starting from the first guide rail (9), into a position in which the first fitting portion (41) and the second fitting portion (18) are aligned to each other such that the furniture parts (3a, 3b), which are connected to the fitting portions (41, 18) in the mounting condition, are aligned substantially coplanar to each other,

   characterized in that the driving devices (12, 53) for moving the furniture parts (3a, 3b) operate exclusively mechanically, i.e. without an electric drive and without further electrical components.
2. The guide system according to claim 1, characterized in that the first drive device (12) includes an entrainment member (20) pressurized by at least one force storage member (21), wherein the carrier (11) can be driven by the entrainment member (20) in a direction extending transversely to the longitudinal direction (L) of the first guide rail (9).
3. The guide system according to claim 2, characterized in that the entrainment member (20) is configured to be releasably coupled to the guiding device (10), wherein the entrainment member (20) is locked in a parking position and wherein the entrainment member (20) can be unlocked by an entering movement of the guiding device (10) starting from a crossing region (45) - seen in a top view onto the first and second guide rail (9, 13a) in the mounting position - so that the entrainment member (20), together with the guiding device (10) coupled therewith, can be retracted at least over a region along the second guide rail (13b) by a force of the at least one force storage member (21).
4. The guide system according to claim 2 or 3, characterized in that the entrainment member (20) includes a pivotally mounted pressure roller (22) configured to run along a control curve (23).
5. The guide system according to claim 4, characterized in that the control curve (23) includes a retraction section (23a) for at least partially retracting the carrier (11) along the second guide rail (13a) in a direction (Z), and a tensioning section (23b) adjoining the retraction section (23a) for loading the at least one force storage member (21).
6. The guide system according to the claims 4 and 5, characterized in that the first drive device (12) includes a movably mounted switch member (25) with a setting contour (25c) arranged or formed thereon, wherein the pressure roller (22) is configured to run along the setting contour (25c) of the switch member (25) upon a movement of the carrier (11) in a direction towards the first guide rail (9), so that the retraction section (23a) of the control curve (23) can be bypassed by the pressure roller (22).
7. The guide system according to one of the claims 1 to 6, characterized in that the guide system (2) includes a spreading device (46) by which the furniture parts (3a, 3b) connected to the fitting portions (41, 18) in the mounted condition can be spreaded apart from a parallel position to one another into an angled position to one another.
8. The guide system according to claim 7, characterized in that the spreading device (46) includes a mounting portion (47) to be fixed to one of the furniture parts (3a, 3b), the mounting portion (47) has a spreading lever (49) pressurized by a spring element (50) for spreading apart the furniture parts (3a, 3b).
9. The guide system according to one of the claims 1 to 8, characterized in that the second drive device (53) is arranged on a column (14) extending vertically in the mounting position, wherein the column (14) is connected to the carrier (11) and is movably mounted, together with the carrier (11), in a direction extending transversely to the longitudinal direction (L) of the first guide rail (9).
10. The guide system according to claim 9, characterized in that the second drive device (53) includes at least one actuating arm (67) connected to the second fitting portion (18), a spring device (59) for applying a force to the at least one actuating arm (67), a control curve (66) and a roller (61) pressurized by the spring device (59), wherein the roller (61) is configured to run along the control curve (66) upon a movement of the at least one actuating arm (67).
11. The guide system according to claim 10, characterized in that the control curve (66) is arranged or formed on an intermediate piece (63), wherein the fitting portion (18) to be fixed to the second furniture part (3b) is hingedly connected to a fitting portion (54) by the intermediate piece (63), wherein it is preferably provided that the fitting portion (54) is configured to be fixed to the column (14).
12. The guide system according to one of the claims 1 to 11, characterized in that the carrier (11), in the mounting position, can be moved into a transfer position in which the carrier (11) adjoins the first guide rail (9a) in the longitudinal direction (L), so that the guiding device (10) can be transferred to and from between the first guide rail (9a) and the carrier (11).
13. An arrangement comprising a first furniture part (3a) and a second furniture part (3b) hingedly connected to one another by a pivoting axis (5a), and a guide system (2) according to one of the claims 1 to 12 for guiding the furniture parts (3a, 3b).
14. An item of furniture comprising a guide system according to one of the claims 1 to 12 or comprising an arrangement according to claim 13.
15. The item of furniture according to claim 14, characterized in that the item of furniture (37) includes a furniture carcass (36) being stationary during operation, and at least two furniture parts (3a, 3b), in particular door wings of a folding door, movably supported relative to the furniture carcass (36), wherein the furniture parts (3a, 3b) are hingedly connected to one another by a pivoting axis (5a) extending vertically in the mounted position, wherein the at least two furniture parts (3a, 3b) can be moved by the guide system (2) between a first position, in which the furniture parts (3a, 3b) are aligned substantially parallel to one another, and a second position, in which the furniture parts (3a, 3b) are aligned substantially coplanar to one another.

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