AT517378B1 - hinge - Google Patents

Abstract

Furniture hinge (4), comprising: - a first stop member (5) for attachment to a furniture body (2), - a second stop member (9) for attachment to a movably mounted furniture part (3), wherein the second stop member (9) with the at least one helical spring (12) with a direction of action (X), wherein the furniture hinge (4) by the coil spring (12) from a predetermined angular position in a full closed position and / or in a full open position a damping device (11) for damping a hinge movement, wherein the damping device (11) has at least one fluid chamber (25) in which a piston (22) with a piston rod (20) for executing a in one direction (Y) extending damping stroke is added, wherein the effective direction (X) of the coil spring (12) and the direction (Y) of the damping stroke laterally spaced parallel or obliquely to each other, wherein the coil spring (12) and the damping device (11) in or on a common and in the furniture hinge (4) integrated carrier (10) are arranged.

Description

Description: [0001] The present invention relates to a furniture hinge, comprising: - a first stop member for attachment to a furniture body, - a second stop member for attachment to a movably mounted furniture part, the second stop member being connected to the first [0004] - at least one helical spring with a direction of action, wherein the furniture hinge is movable by the helical spring from a predetermined angular position to a full closed position and / or into a full open position, - a damping device for damping a hinge movement wherein the damping device comprises at least one fluid chamber in which a piston is received with a piston rod for carrying out a running in one direction Dämpfungshubes, wherein the effective direction of the coil spring and the direction of the Dämpfungshubes laterally spaced parallel or obliquely to each other.

In WO 2010/124946 A1 a damping device for furniture hinges is shown, wherein in an interior of a housing, a piston is slidably mounted. For pressurizing the piston, a guided out of the housing piston rod is provided, which is connectable via a connecting element with a hinge pin of a furniture hinge. In a hinge movement, therefore, the piston rod is pressed over the moving hinge pin, so that this hinge movement runs off steamed. In order to press the furniture hinge in the full closed position, a (not shown in WO 2010/124946 A1) spring-assisted locking mechanism would have to be provided. However, the additional arrangement of such a locking mechanism would require an increased space and an additional installation effort.

In DE 202 00 762 U1 a furniture hinge with a closing spring and a braking device in the form of a piston-cylinder unit is shown, wherein the effective direction of the closing spring and the direction of the linear damping stroke are laterally spaced apart from each other.

In DE 20 2007 004 621 U1 a multi-link hinge with a closing spring and a linear damper for damping a spring-assisted retraction movement is shown, wherein the closing spring and the linear damper are formed as separate components. The effective direction of the closing spring and the direction of the damping stroke of the linear damper run obliquely to each other.

Object of the present invention is to provide a furniture hinge of the type mentioned with a more compact design.

This is achieved by the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent subclaims.

According to the invention it is provided that the coil spring and the damping device are arranged in or on a common carrier integrated in the furniture hinge.

Thus, the coil spring, the damping device and the carrier are combined to form a common unit, this unit is in turn integrated into the furniture hinge. Moreover, the axial space of such a unit in which the effective direction of the coil spring and the direction of the Dämpfungshubes parallel spaced or obliquely to each other - in comparison to constructions in which the direction of action of the coil spring and the direction of the Dämpfungshubes coaxial with each other - be shortened , Due to the small axial space, this compact unit can also be integrated in hinge parts with a correspondingly short length.

Another advantage of this unit is also to be seen in the fact that the onset of the force of the spring device and the beginning of action of the damping device can be well matched in time, because the spring device and the damping device are controlled at the same time at a change in angle of the furniture hinge. This is particularly advantageous in wide-angle hinges with at least five or more joint axes, by which an opening angle of a movably mounted furniture part relative to a front side of a furniture body of at least 150 °, preferably at least 170 °, can be achieved. Namely, a particular challenge in such furniture hinges with an enlarged opening angle range is to synchronize the onset of the force of the spring device and the start of action of the damping device with each other.

Such a synchronization can for example be made to the effect that a control cam is arranged on a hinge axis of the furniture hinge, which is coupled in motion with a hinge movement. The coil spring can interact via a pressure piece with this control cam, wherein the entire assembly - consisting of carrier, coil spring and damping device - twisted at a movement of the furniture hinge to those hinge axis on which the control cam is arranged. Thus, the position of the damping device and the position of the coil spring can be synchronized with a movement of the control cam.

Further details and advantages of the invention will become apparent from the following description of the figures. 1 shows a piece of furniture with a movable furniture part, which is pivotably mounted on furniture hinge kidney relative to a furniture carcass, [0017] FIGS. 2a, 2b show the furniture hinge in an exploded view and in an open position, [0017] FIG. Fig. 3a-3c temporal sequences of the closing operation of the furniture hinge in cross-section.

Fig. 1 shows a piece of furniture 1 with a movable furniture part 3, which is mounted on furniture hinges 4 pivotally relative to a furniture body 2. The furniture hinges 4 can be designed as wide-angle hinges with at least five, preferably at least seven, hinge axes A, B, C, D, E, F, G (FIG. 2 a), so that the movable furniture part 3 has a maximum opening angle of at least 150 °, preferably at least 170 °, relative to the end face of the furniture body 2 can take.

Fig. 2 shows an exploded view of a designed as a wide-angle hinge furniture hinge 4 with seven hinge axes A, B, C, D, E, F, G. The furniture hinge 4 has a first stop member 5 - preferably with a hinge arm 5a - for attachment to Furniture carcass 2 and a second stop member 9 - preferably with a hinge cup 9a - for attachment to the movable furniture part 3, wherein the second stop member 9 is pivotally connected to the first stop member 5 via a hinge mechanism. The hinge mechanism has an intermediate piece 6 which is coupled with a hinge movement and which is connected on the one hand via the joint axes A, B to the hinge arm 5a and on the other hand via the hinge axis F to the hinge cup 9a. In addition, a first articulated lever 7 is provided, which is connected via the hinge axis C with the hinge arm 5a, about the hinge axis D with the intermediate piece 6 and about the hinge axis E with a second articulated lever 8 pivotally connected. The second articulated lever 8 is articulated via the hinge axis G with the hinge cup 9a.

In the illustrated embodiment, a support 10, which is provided for receiving a damping device 11 (for damping a hinge movement) and a coil spring 12 (for spring-assisted movement of the furniture hinge 4 in at least one end position), arranged on or in the second toggle lever 8, preferably integrated in this articulated lever 8. The articulated lever 8 has a U-shaped profile for receiving the carrier 10 in cross-section. The carrier 10 moves with a hinge movement with the second articulated lever 8, wherein the carrier 10 is attached on the one hand to the hinge axis E and on the other hand via the two pins 13 on the second articulated lever 8. The carrier 10 has a first cavity 13 for receiving the coil spring 12 and a second cavity 15 for receiving the damping device 11, wherein the direction of the longitudinal extension of the two cavities 14, 15 approximately parallel to each other or slightly oblique to each other. The two cavities 14, 15 may each be formed as a hollow cylinder. The coil spring 12 is designed as a compression spring and presses via a pressure piece 16 against a control cam 17 which is formed on a bearing on the hinge axis G control cam 18. The control cam 18 is connected against rotation with the second articulated lever 8, so that during a pivoting movement of the articulated lever 8, the control cam 18 (and thus also the cam 17) pivot about the articulation axis G. The damping device 11 comprises a housing 19 with a fluid chamber 25 (FIG. 3 c) formed therein, in which a piston 22 with a piston rod 20 is accommodated. In mounting position, the housing 19 of the damping device 11 is inserted in the second cavity 15 of the carrier 10, wherein the free end of the piston rod 20 is supported on the carrier 10 and the housing 19 of the damping device 11 projects from the carrier 20 in sections. Namely, during the closing movement of the furniture hinge 4, the first articulated lever 7 can contact the housing 19 of the damping device 11 and press it relative to the piston rod 20, thereby generating a damping force and slowing down the closing movement of the furniture hinge 4. But it is not absolutely necessary that the damping device 11 has its own housing 19, but rather the housing of the damping device 11 or the fluid chamber 25 can also be formed by the carrier 10 itself.

2b shows an open position of the furniture hinge 4 in a perspective view. The furniture hinge 4 is formed as a so-called zero-entry hinge, which means that a hinged to the cup 9a furniture part 3 can be opened so far that the movable furniture part 3 in the full open position, the extraction of movable in the furniture body 2 inside extensions with maximum width not impeded over the entire Auszugsweg. On the hinge arm 5a, a rotatable adjusting wheel 21 is mounted, by means of which the hinge arm 5a relative to a base 2 to be fastened to the furniture body base plate in the longitudinal direction of the base plate (ie in the depth direction of the furniture body 2) is adjustably mounted. The control cam 18 with the control cam 17 formed thereon is mounted within the hinge cup 9a and twists in a hinge movement about the hinge axis G.

Fig. 3a-3c show a temporal sequence of the closing movement of the furniture hinge 4 in cross section. According to Fig. 3a, the furniture hinge 4 is in the fully open position. Evident is the rotatable about the hinge axis G control cam 18, wherein the coil spring 12 is supported on a bottom of the first cavity 14 of the carrier 10 and presses on the pressure piece 16 against the convex cam 17 of the control cam 18. The free end of the piston rod 20 of the damping device 11, however, is supported on a bottom of the second cavity 15, wherein the housing 19 of the damping device 11 protrudes from the carrier 10 in sections.

Fig. 3b shows a further closed position of the furniture hinge 4, in which use both the force of the coil spring 12 and the start of action of the damping device 11. In the figure shown, the furniture hinge 4 has been closed so far that the pressure piece 16 has reached a vertex of the cam 17, to which a trough 26 (Fig. 2a) - with a smaller radial distance to the hinge axis G - followed. If this vertex of the control cam 17 run over, then designed as a compression spring coil spring 12 can relax, the pressing piece 16 is pressed into the trough 26 of the cam 17 and thus the furniture hinge 4 is pressed into the full closed position. For damping this spring-assisted closing movement, the damping device 11 is provided, the housing 19 is acted upon from the position of the furniture hinge 4 of FIG. 3b by a projection 24 of the second articulated lever 7. Thus, while the furniture hinge 4 is pressed starting from the position shown in FIG. 3b in the closed position shown in FIG. 3c, at the same time the housing 19 of the damping device 11 is pressed by the hinge lever 7 and thus moved relative to the axially immovable piston rod 20. By a hydraulic damping fluid in the housing 19, the relative movement between the housing 19 and the piston rod 20 can be braked. If the furniture hinge 4 is opened again, a return of the housing 19 by the return spring 23, which is supported on the one hand on the piston 22 and on the other hand on an inner wall of the housing 19. By the force of the return spring 23, the damping device 11 is reset to a ready position for a next damping stroke again.

In Fig. 3b is also seen that the direction of action (X) of the coil spring 12 and the direction of the damping stroke (Y) obliquely to each other, wherein the effective direction (X) of the coil spring 12 and the direction of the damping stroke (Y) a Enclose angles (a) between 3 ° and 20 °, preferably between 5 ° and 15 °, relative to one another. Alternatively, it is also possible that the direction of action (X) of the coil spring 12 and the direction of the damping stroke (Y) laterally spaced parallel to each other. The carrier 10 can thus rotate synchronously with the damping device 11, the coil spring 12 and the articulated lever 8 about those hinge axis G, on which the control cam 18 is rotatably mounted with the cam 17. Thus, both the coil spring 12 and the damping device 11 are driven in a hinge movement, so that the force of the coil spring 12 can use the furniture hinge 4 and the beginning of action of the damping device 11 at the same time. Additional transmission parts for coupling between the coil spring 12 and the damping device 11 are therefore not necessary.

Claims (14)

claims 1. furniture hinge (4), comprising: - a first stop member (5) for attachment to a furniture body (2), - a second stop member (9) for attachment to a movably mounted furniture part (3), wherein the second stop member (9) with the first stop member (5) is hingedly connected, - at least one coil spring (12) having a direction of action (X), wherein the furniture hinge (4) by the coil spring (12) from a predetermined angular position in a full closed position and / or in a a damping device (11) for damping a hinge movement, wherein the damping device (11) has at least one fluid chamber (25), in which a piston (22) with a piston rod (20) for executing in one direction ( Y) extending damping stroke, wherein the effective direction (X) of the coil spring (12) and the direction (Y) of the damping stroke laterally spaced parallel or obliquely to each other, dadu characterized in that the helical spring (12) and the damping device (11) are arranged in or on a common and in the furniture hinge (4) integrated carrier (10). 2. Furniture hinge according to claim 1, characterized in that the carrier (10) has a first cavity (14) for receiving the coil spring and a second cavity (15) for receiving the damping device (11). 3. Furniture hinge according to claim 2, characterized in that the damping device (11) has a housing (19) which is inserted into the second cavity (15) of the carrier (10). 4. Furniture hinge according to claim 2 or 3, that the first cavity (14) and the second cavity (15) of the carrier (10) are each formed as a hollow cylinder. 5. Furniture hinge according to one of claims 1 to 4, characterized in that the furniture hinge (4) has at least one pivotally mounted articulated lever (8), wherein the carrier (10) together with the damping device (11) and the coil spring (12) in or on this articulated lever (8) is arranged and wherein the carrier (10) moves with a movement of the articulated lever (8) with this. 6. Furniture hinge according to claim 5, characterized in that the articulated lever (8) via a hinge axis (G) with the second stop member (9) is connected, wherein at this hinge axis (G) a movement-coupled with the hinge movement control cam (17) is arranged , so that in the hinge movement and the control cam (17) moves along. 7. Furniture hinge according to claim 6, characterized in that the coil spring (12) via a pressure piece (16) presses against the control cam (17). 8. Furniture hinge according to one of claims 1 to 7, characterized in that the piston rod (20) at the predetermined angular position to the full closed position and / or full open position on the carrier (10) and the housing (19) of the damping device (11) on a hinge lever (7) of the furniture hinge (4) can be supported, wherein the hinge lever (7) is coupled in motion with the hinge movement. 9. Furniture hinge according to claim 8, characterized in that the housing (19) of the damping device (11) at the predetermined angular position up to the full closed position and / or full open position with a joint lever (7) arranged or formed projection (24) cooperates , 10. Furniture hinge according to one of claims 1 to 9, characterized in that the effective direction (X) of the coil spring (12) and the direction (Y) of the damping stroke an angle (a) between 3 ° and 20 °, preferably between 5 ° and 15 °, relative to each other. 11. Furniture hinge according to one of claims 1 to 10, characterized in that the first stop member (5) has a hinge arm (5 a). 12. Furniture hinge according to one of claims 1 to 11, characterized in that the second stop member (9) has a hinge cup (9a). 13. Furniture hinge according to one of claims 1 to 12, characterized in that the furniture hinge (4) is designed as a wide-angle hinge with at least five, preferably at least seven, hinge axes (A, B, C, D, E, F, G). 14. Furniture hinge according to one of claims 1 to 13, characterized in that the helical spring (12) is designed as a compression spring. For this 3 sheets of drawings