AT520243B1 - Arrangement for moving a movable furniture part - Google Patents

Abstract

Arrangement (1, 2, 3) for moving a movable furniture part (4, 5) relative to a furniture body (6, 7), with a first movement device (8, 9, 10) and a second movement device (11, 12) spaced therefrom, 13), wherein the two movement devices (8, 9, 10, 11, 12, 13) can be connected to the movable furniture part (4, 5) and to the furniture body (6, 7), the arrangement (1, 2, 3) has a synchronization device (14, 15, 16) via which the two movement devices (8, 9, 10, 11, 12, 13) are or can be coupled to one another, and the arrangement (1, 2, 3) has at least one energy accumulator (17 ) for supporting the movement of the movable furniture part (4, 5) and/or for at least partially compensating for a weight of the movable furniture part (4, 5), the synchronization device (14, 15, 16) having at least one device (25, 26, 27) which, when the movable furniture part (4, 5) moves relative to the movable furniture part (4, 5) and/or to the furniture body (6, 7), the at least one energy store (17) between the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) and at least one relative to the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) stationary bearing point (49, 56) is effective.

Description

description

The invention relates to an arrangement for moving a movable furniture part relative to a furniture body, having a first movement device and a second movement device spaced therefrom, the two movement devices being connectable to the movable furniture part and to the furniture body, the arrangement having a synchronization device, via which the two movement devices are or can be coupled to one another, and the arrangement has at least one energy accumulator to support the movement of the movable furniture part and/or to at least partially compensate for a weight of the movable furniture part, the synchronization device having at least one device which, during a movement of the movable furniture part is movable relative to the movable furniture part and/or to the furniture body, the at least one force accumulator between the at least one movable device of the synchronization device and wen at least one bearing point which is stationary relative to the at least one movable device of the synchronization device. The invention further relates to a piece of furniture with a furniture body and at least one furniture part that can be moved relative to the furniture body.

Such an arrangement for moving flaps, which can be pivoted about a horizontal axis, is known, for example, from EP 1 875 026 A1. The two movement devices are often each equipped with energy storage devices in order to support the movement of the movable furniture part and/or to at least partially compensate for the weight of the movable furniture part.

The disadvantage here is that the force accumulators are integrated into the movement devices. However, this also means that in the case of differently designed moveable furniture parts, different movement devices must be provided, since the force accumulators can usually only be adjusted within a limited range, if at all. It is not possible to exchange the lift mechanism. Rather, the entire movement devices must be replaced, which is associated on the one hand with considerable costs and on the other hand with a considerable installation effort, since the connections of the movement devices to the movable furniture part and the furniture body have to be eliminated.

A further disadvantage is that the two movement devices have a space-consuming design due to the integrated force accumulator.

[0005] Further arrangements for moving a movable furniture part, which is designed as a furniture flap, can be found in US Pat. No. 3,221,803 A, US Pat. No. 3,075,819 A and US Pat. No. 644,434 A.

The object of the present invention is an improved arrangement compared to the prior art, which is characterized in particular by a simpler exchangeability of the at least one force accumulator and a more compact design of the two movement devices, or compared to the prior art improved furniture with such an arrangement.

This object is solved by the features of independent claims 1 and 10.

It is therefore provided in the arrangement according to the invention that the arrangement comprises at least one carrier, via which the two movement devices can be connected to the movable furniture part. For reasons of stability, this is particularly advantageous in the case of heavy, movable furniture parts, such as doors, sliding doors or folding/sliding doors.

Because the synchronization device has at least one device which can be moved relative to the movable furniture part and/or to the furniture body when the movable furniture part moves, the at least one energy store between the at least one movable device of the synchronization device and at least one relative to the at least one movable device of the synchronization device stationary bearing point is effective, it is possible in the two moving devices according to the

State of the art energy storage provided to dimension significantly smaller or even save entirely. As a result, the two movement devices can be made more compact. Furthermore, the synchronization device, which is usually arranged between the two movement devices, can be exchanged more easily than the movement devices. Rather, the movement devices can remain connected to the movable furniture part and the furniture body. Replacing the synchronization device makes it easier to replace the at least one force accumulator, so that compared to the prior art, it is easier to adapt to the design of the movable furniture part, for example the weight of the movable furniture part.

According to a preferred embodiment, it is provided that the at least one force accumulator comprises at least one torsion spring with a first end and a second end, the first end of the torsion spring being movably coupled to the at least one movable device of the synchronization device and the second end the torsion spring is connected to the at least one stationary bearing point.

The design as a torsion spring has the particular advantage that torsion springs usually have a very flat spring characteristic, so that force or energy can be deposited in the torsion spring without this being associated with a significant effort by the user of the movable furniture part . In other words, the torsion spring can be loaded without significantly impeding the movement of the movable furniture part.

A torsion spring is generally understood to mean a spring in whose cross sections, when rotated about a longitudinal axis, shear stresses called torsional stresses arise, which are in equilibrium with an externally applied torsional moment. For example, the spring may have a cylindrical or rectangular cross-section. A coil spring is also a torsion spring. It is a helically coiled rod which, like a straight torsion spring, is elastically stressed over its entire length by a torsional moment.

A particularly advantageous embodiment of the invention is that the two movement devices have means for generating a torque when the movable furniture part moves relative to the furniture body and the at least one movable device of the synchronization device is designed as a synchronization rod which can be rotated on the two movement devices is mounted and coupled in a movement-coupled manner to the means for generating a torque. In this embodiment, force or energy can be deposited in the torsion spring or retrieved from the torsion spring in a particularly simple manner.

It can be provided that the means for generating a torque at least one pivoted lever, at least one gear and at least one rack, in which the at least one gear can engage, and / or at least one cable and at least one spindle, on which the at least one rope can be wound up and unwound.

It has proven to be favorable that - if the at least one force accumulator comprises at least one torsion spring - the at least one torsion spring is wound around the synchronization rod. Alternatively, however, provision can also be made for the synchronization rod to be hollow in some areas, for example, and for the at least one torsion spring to be arranged at least in some areas in the hollow space thus created in the synchronization rod.

It makes sense that the synchronization rod is composed of at least two sections in the direction of its longitudinal extension, preferably wherein the at least two sections are releasably connectable. This is particularly advantageous in arrangements for moving very large movable furniture parts, such as doors, since the arrangement can be packaged in a space-saving manner for shipping.

An advantageous development of the invention is that the synchronization

device has at least one transmission gear. In this way it is possible to change the translation with which force or energy is deposited in the at least one torsion spring or retrieved from it. For example, in the case of a movable furniture part which is designed as a flap, it makes sense to provide such a step-up gear, since a flap usually covers a comparatively short distance between the closed position and the open position.

The two moving devices can be designed very differently depending on the design of the piece of furniture to be moved. Thus, it can be provided that the two movement devices, particularly in the case of a furniture part mounted so as to be linearly movable, have at least one guide rail or, particularly in the case of a pivotably mounted furniture part, an actuating arm.

As stated at the outset, protection is also sought for a piece of furniture with a furniture body and at least one furniture part that can be moved relative to the furniture body, the piece of furniture having at least one arrangement according to the invention, the two movement devices being connected to the at least one movable furniture part and to the furniture body are, preferably wherein the movement devices are arranged on at least one side wall of the furniture body.

The at least one movable furniture part can be designed as a door, sliding door, folding sliding door, flap or drawer.

In particular in connection with furniture that includes sliding doors or folding/sliding doors, it is advisable for the furniture body to have at least one, preferably laterally arranged, receiving slot for receiving the at least one movable furniture part, preferably with the at least one receiving slot having a clear Has a width of 10 to 30 cm and/or a height of 100 to 250 cm and/or a depth of 60 to 100 cm.

Further details and advantages of the invention are explained in more detail below on the basis of the description of the figures with reference to the drawings. Show in it:

1a to 1c a piece of furniture according to the invention according to a preferred embodiment, the three partial views showing different positions of the movable furniture part in the form of a folding/sliding door,

2a and 2b show an arrangement according to the invention according to a preferred exemplary embodiment, with FIG. 2b showing a detailed view of section 58 of FIG. 2b,

3 shows a further detailed view of the arrangement according to the invention according to the preferred embodiment in a different position compared to FIGS. 2a and 2b,

Figures 4a and 4b show a piece of furniture or an arrangement not according to the invention, Figure 4a showing a perspective view and Figure 4b showing a front view, and

5 shows a drawer with an arrangement not according to the invention.

Figure 1a shows a piece of furniture 40 with a furniture body 6 and two movable furniture parts 4, which are each designed as folding sliding doors.

The furniture body 6 has a receiving area 46 in which, for example, a kitchen, parts of a kitchen or clothes storage devices can be arranged. FIG. 1a shows an oven with hotplates and a drawer cabinet arranged next to it, and FIG. 1b also shows upper cabinets.

The furniture body 6 also has two receiving shafts 45 in which the two folding sliding doors 4 can be arranged. The receiving shafts 45 can be formed, for example, as in the case shown, by two side walls 43 and 47 arranged essentially parallel to one another at a distance.

FIG. 1a shows a position of the folding and sliding doors 4 in which the folding and sliding doors 4 are arranged almost completely in the receiving shafts 45. FIG. 1b shows a position of the folding and sliding door 4 in which the left folding and sliding door 4 is arranged outside of the associated receiving shaft 45, but is still in a folded position, whereas the right folding and sliding door 4 is already slightly buckled. This means that the two door leaves that make up the folding/sliding doors 4 are no longer arranged one on top of the other. FIG. 1c shows a position of the folding and sliding doors 4, in which the two folding and sliding doors 4 are completely unfolded and completely cover the receiving area 46.

In the case of the piece of furniture 40 shown in FIGS. 1a to 1c, two arrangements 1 according to a preferred embodiment of the invention are used for moving the folding/sliding doors 4 relative to the furniture body 6. One of these arrangements 1 is shown in FIGS. 2a, 2b and 3, specifically from a viewing direction which is indicated by the arrow 59 in FIG. 1b.

The arrangement 1 comprises a first movement device 8 and a second movement device 11 spaced therefrom. This means that in this case the two movement devices 8 and 11 are used to move the folding/sliding door 4 into or out of the receiving shaft 45 . A further guide device 42 is arranged transversely thereto, which is used to fold or unfold the folding/sliding door 4 in order to open or cover the receiving area 46 . This guide device 42 is not part of the arrangement 1.

The arrangement 1 further includes a synchronization device 14, via which the two movement devices 8 and 11 are coupled to one another. The synchronization device 14 includes a device 25 in the form of a synchronization rod, this device 25 being movable when the folding/sliding door 4 moves relative to the folding/sliding door 4 and to the furniture body 6 . The synchronization rod 25 is composed of three sections 29, 30 and 31 in the direction 28 of its longitudinal extension, the three sections 29, 30 and 31 being detachably connectable. For this purpose, connectors 48 are provided, which are each arranged between two sections 29, 30 and 31, respectively.

The arrangement also includes a carrier 34, via which the two movement devices 8 and 11 are connected to the folding/sliding door 4, with the synchronization device 14 being integrated into the carrier 34. This allows a very compact structure to be achieved. In the case shown, the carrier 34 is also composed of several sections.

From the detailed view according to FIG. 2b it can be seen that the arrangement 1 also has an energy accumulator 17 to support the movement of the movable furniture part 4, the energy accumulator 17 comprising a torsion spring. The torsion spring has a first end 18 and a second end 19, the first end 18 of the torsion spring being coupled to the movable synchronization rod 25 for movement. For this purpose, a sleeve 50 is provided which is non-rotatably connected to the synchronization rod and to which the end 18 of the torsion spring is fixed. The second end 19 of the torsion spring is mounted stationary relative to the synchronization rod 25 . Specifically, the second end 19 is attached to the carrier 34 via an attachment device 49 . The torsion spring is wrapped around the synchronization bar 25 .

The movement device 8 also includes means 20, 21 for generating a torque when the movable furniture part 4 moves relative to the furniture body 6. In the case shown, the means 20, 21 include a cable 20 and a spindle 21, on which the cable 20 can be wound up and unwound. One end of the cable 20 is attached to the guide rail 35 via a device 51 . The synchronization rod 25 is rotatably mounted on the movement device 8 and is connected to the spindle 21 in a movement-coupled manner.

Figure 2b also shows a guide carriage 52 which is mounted on the guide rail 35

is slidably mounted. The folding/sliding door 4 or the carrier 34 is attached to the guide carriage 52 . 2b also shows that the arrangement 1 can also include other means for influencing the movement of the movable furniture part 4, such as a damping device 53. To visualize the damping device 53, the guide carriage 52, the cable 20 and the spindle 21, part of the guide rail 35 has been left out in the drawing. In reality, the components of the arrangement 1 mentioned are covered by the guide rail 35 in this view.

Figure 3 shows a compared to Figure 2b changed position of the carrier 34 and the synchronization device relative to the guide rail 35 and an associated M6öbelkorpus 6. As can be seen from a comparison of the representations according to Figures 2b and 3, in a movement of the carrier 34 along the guide rail 35, the rope 20 is wound onto the spindle 21 and unwound again. The position of the rope 20 remains essentially unchanged. By unwinding and winding the cable 20 onto the spindle 21, the spindle 21 and thus the synchronization rod 25 are set in rotation. The rotation is transmitted via the end 18 to the torsion spring. Since at the same time the end 19 of the torsion spring is stationary, a torsional stress builds up in the torsion spring. In other words, force or energy is deposited in the torsion spring.

This loading of the force accumulator 17 can take place either when the movable furniture part 4 is pushed into the receiving shaft 45 or when the movable furniture part 4 is moved out of the receiving shaft 45 . The force deposited in the force accumulator 17 is then available for the opposite movement and can support the movement of the movable furniture part 4 or even take it over completely.

Figures 4a and 4b show an arrangement 2 not according to the invention or a piece of furniture 41 not according to the invention with such an arrangement 2. The piece of furniture 41 comprises a furniture body 7 with two side walls 44. On these side walls 44, which are spaced apart, are a movement device 9 and 12 are arranged in each case. The movement devices 9 and 12 each comprise a housing 54 and an actuating arm 39 which is pivotably mounted relative to the housing 54 . A furniture flap can be attached to the end of the actuating arm 39 via a device 55 in each case.

The two movement devices 9 and 12 are coupled to one another via a synchronization device 15 . The synchronization device 15 comprises a device 26 in the form of a synchronization rod, the device 26 being movable relative to the flap and the furniture body 7 when the flap or the positioning arms 39 are moved.

As in the embodiment according to Figures 2a, 2b and 3, the arrangement 2 comprises an energy accumulator 17 with a torsion spring. A first end 18 of the torsion spring is movably coupled to the movable device 26 . The second end 19 of the torsion spring is mounted stationary relative to this movable device 26 . It can be mounted, for example, on the housing 54 of the moving device or directly on the furniture body 7 .

The functional principle of the arrangement 2 is essentially the same as in the exemplary embodiment according to FIGS. 2a, 2b and 3. A major difference lies in the design of the means for generating a torque. Specifically, in the present case, these are designed as a pivotably mounted lever 22 which is part of the actuating arm 39 . The synchronization rod 26 can, for example, be connected or can be connected to the lever 22 or the actuating arm 39 via an extension connected in a rotationally fixed manner to the lever 22 .

In the present case, it makes sense for the torsion spring to be loaded when the flap is folded down, i. H. when the flap moves from the open to the closed position. The energy stored in the torsion spring during this movement can then be used to balance the weight of the furniture flap and/or to assist opening, i. H. be used to support the movement of the furniture flap from the closed to the open position.

The actuating arm 39 or the lever 22 moves in an angular range of approx.

120°. In this case, it makes sense to arrange a step-up gear between the synchronization rod 26 and the stationary end of the torsion spring.

FIG. 5 shows an arrangement 3 not according to the invention for moving a movable furniture part 5 in the form of a drawer. A first moving device 10 and a second moving device 13 spaced therefrom are arranged on the drawer bottom 57 . The movement devices 10 and 13 each comprise a carcass rail 37 to be connected to a furniture carcass and a drawer rail 38 connected to the drawer 5, it being possible for further rails to be provided between these two guide rails.

The two movement devices 10 and 13 are coupled to one another via a synchronization device 16, the synchronization device 16 being configured essentially as in the exemplary embodiment according to FIGS. 2a, 2b and 3 or as in FIGS. 4a and 4b. The synchronization device 16 in turn comprises a movable device 27 in the form of a synchronization rod, the synchronization rod being composed of two sections 32 and 33 in this case. A first end 18 of the torsion spring is movably coupled to the synchronization rod 27 . A second end 19 is mounted in a stationary manner relative to the synchronization rod 27 . This can be realized, for example, by attachment to the drawer 5 or to a projection 56 which is arranged on the drawer 5 .

A major difference here is the design of the means for generating a torque during a movement of the movable furniture part 5 relative to a furniture body. In this case, these means in the two movement devices 10 and 13 each comprise a gear wheel 23 and a toothed rack 24, in which the gear wheel 23 can engage.

In this case, the synchronization device 16 fulfills a double function. On the one hand, lateral stabilization of the drawer 5 is achieved, as is described, for example, in the Austrian patent specification AT 509257. On the other hand, the synchronization device 16 includes the at least one force accumulator 17. Force or energy, which is stored in the course of moving the drawer 5 in or out, can be used in the opposite direction of movement to support the movement of the drawer 5.

Claims (12)

patent claims 1. Arrangement (1, 2, 3) for moving a movable furniture part (4, 5) relative to a furniture body (6, 7), with a first movement device (8, 9, 10) and a second movement device (11) spaced therefrom, 12, 13), the two movement devices (8, 9, 10, 11, 12, 13) being connectable to the movable furniture part (4, 5) and to the furniture body (6, 7), the arrangement (1, 2, 3) has a synchronization device (14, 15, 16) via which the two movement devices (8, 9, 10, 11, 12, 13) are or can be coupled to one another, and the arrangement (1, 2, 3) has at least one energy accumulator (17) to support the movement of the movable furniture part (4, 5) and/or to at least partially compensate for a weight of the movable furniture part (4, 5), the synchronization device (14, 15, 16) having at least one device (25, 26, 27) which, when the movable furniture part (4, 5) moves relative to the movable furniture part (4, 5) and/or to the furniture body (6, 7), the at least one energy accumulator (17) between the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) and at least one relative to the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) stationary bearing point (49, 56) is effective, characterized in that the arrangement (1) comprises at least one carrier (34) via which the both movement devices (8, 11) can be connected to the movable furniture part (4). 2. Arrangement (1, 2, 3) according to claim 1, wherein the at least one force accumulator (17) comprises at least one torsion spring having a first end (18) and a second end (19), the first end (18) of the torsion spring is connected in a movement-coupled manner to the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) and the second end (19) of the torsion spring is connected to the at least one stationary bearing point (49, 56). 3. Arrangement (1, 2, 3) according to claim 1 or 2, wherein the two movement devices (8, 9, 10, 11, 12, 13) means (20, 21, 22, 23, 24) for generating a torque of a movement of the movable furniture part (4, 5) relative to the furniture body (6, 7) and the at least one movable device (25, 26, 27) of the synchronization device (14, 15, 16) is designed as a synchronization rod which can be rotated on the both moving devices (8, 9, 10, 11, 12, 13) and is connected to the means (20, 21, 22, 23, 24) for generating a torque in a movement-coupled manner. 4. Arrangement (1, 2, 3) according to claim 3, wherein the means (20, 21, 22, 23, 24) for generating a torque at least one pivoted lever (22), at least one gear (23) and at least one rack (24) into which the at least one gear wheel (23) can engage, and/or at least one cable (20) and at least one spindle (21) on which the at least one cable (20) can be wound and unwound . 5. An assembly (1,2,3) as claimed in claim 2 and claim 3 or 4, wherein the at least one torsion spring (17) is wrapped around the synchronizing bar (25,26,27). 6. Arrangement (1, 2, 3) according to one of claims 3 to 5, wherein the synchronization rod (25, 26, 27) in the direction (28) of its longitudinal extent consists of at least two sections (29, 30, 31, 32, 33) is assembled, preferably wherein the at least two sections (29, 30, 31, 32, 33) are releasably connectable. 7. Arrangement (1, 2, 3) according to any one of claims 1 to 6, wherein the synchronization device (14, 15, 16) has at least one transmission gear. 8. Arrangement (1) according to any one of claims 1 to 7, wherein the synchronization device (14) in the at least one carrier (34) is at least partially integrated. 9. Arrangement (1, 2, 3) according to any one of claims 1 to 8, wherein the two movement devices (8, 9, 10, 11, 12, 13) at least one guide rail (35, 36, 37, 38) or an actuating arm (39) have. 10. Furniture (40, 41) with a furniture body (6, 7) and at least one furniture part (4, 5) that can be moved relative to the furniture body (6, 7), characterized in that the piece of furniture (4, 5) has at least one arrangement ( 1, 2, 3) according to one of claims 1 to 9, wherein the two movement devices (8, 9, 10, 11, 12, 13) with the at least one movable furniture part (4, 5) and with the furniture body (6, 7) are connected, preferably with the two movement devices (8, 9, 10, 11, 12, 13) being arranged on at least one side wall (43, 44) of the furniture body (6, 7). 11. Furniture (40, 41) according to claim 10, wherein the at least one movable furniture part (4, 5) is designed as a door, sliding door, folding sliding door, flap or drawer. 12. Furniture (40) according to claim 10 or 11, wherein the furniture body (6) has at least one, preferably laterally arranged, receiving shaft (45) for receiving the at least one movable furniture part (4), preferably wherein the at least one receiving shaft (45) has a clear width of 10 to 30 cm and/or a height of 100 to 250 cm and/or a depth of 60 to 100 cm. 7 sheets of drawings