Locking device for a movable furniture component

Abstract

The invention relates to a locking device (10) for movable furniture parts (3), comprising a guide rail (11) on which a plurality of locking elements (20) are slidably held, and a plurality of latches (16), which are each couplable to a movable furniture part (3), are movable between a locked position and an unlocked position and in the locked position block the opening of the movable furniture part (3), wherein the locking elements (20) are movable into a closed position in which they block all latches (16) from moving into the unlocked position, and into an anti-tip position in which they are slidable along the guide rail (11) and over one of the latches (16) from the locked position into the unlocked position and, when one of the latches (16) is positioned in the unlocked position, block all other latches (16) from moving into the unlocked position, so that only one of the movable furniture parts (3) can be moved into an open position, wherein the locking elements (20) are movable into a release position in which all latches (16) are movable from the locked position into the unlocked position on or in a receptacle of the locking element (20). The locking device is thus flexibly lockable or unlockable for all movable furniture parts and additionally allows positioning of only a single movable furniture part to be opened in an anti-tip position.

Description

Technical Field

[0001] This invention relates to a locking device for movable furniture components, the locking device comprising: a guide rail on which a plurality of locking elements are displaceably held; and a plurality of latches, each latch being connectable to the movable furniture component and movable between a locked position and an unlocked position, and preventing the movable furniture component from being opened in the locked position, wherein the locking elements are movable to the locked position, in which the locking elements prevent all latches from moving to the unlocked position, and the locking elements are displaceable from the locked position to the unlocked position along the guide rail in an anti-tilt position via one of the latches, and when one of the latches is locked in the unlocked position, it prevents all other latches from moving to the unlocked position, such that only one movable furniture component can be moved to the open position. Background Technology

[0002] EP 2 239 402 A2 discloses a locking arrangement for furniture in which multiple locking elements are displaceably held on a locking lever. The locking elements can be used to lock extendable furniture parts such that only one of the multiple extendable furniture parts moves to the protruding open position. This prevents tilting, for example, in the case of roller containers. However, a disadvantage of this locking arrangement is that only one push element can be positioned in the open position, which is particularly destructive when disassembling furniture (e.g., moving). Summary of the Invention

[0003] Therefore, the object of the present invention is to create a locking device for movable furniture parts that is flexible and also allows all movable furniture parts to be unlocked simultaneously in a simple manner.

[0004] The objective is achieved by a locking device having the features of claim 1.

[0005] The locking device according to the invention comprises a plurality of latches, each latch being connectable to a movable furniture component and movable between a locked position and an unlocked position, wherein the locked position prevents the movable furniture component from being opened while the unlocked position allows opening and movement. The connection between the latch and the movable furniture component can be designed, for example, as disclosed in DE 20 2009 000 050U1. The latch moves only slightly between the locked and unlocked positions, for example less than 30 mm, while the movable furniture component is only connected to the latch for a short distance and is otherwise free to move.

[0006] The locking element can move along a guide rail via a latch, thereby preventing all latches from moving to the unlocked position when the locking element is in the locked position. In the anti-tilt position, only a single latch can move from the locked position to the unlocked position, so that when the latch is then locked in the unlocked position, the locking element is at least partially displaced, thus preventing all other latches from moving to the unlocked position, and only a single movable furniture part can move to the open position. The locking element is additionally movable to a release position, i.e., a third position other than the locked and anti-tilt positions, in which all latches can move from the locked position to the unlocked position on or within the receptacle of the locking element. When all latches move from the locked position to the unlocked position, all movable furniture parts can move independently of each other in the opening direction, for example, when disassembling furniture and removing movable furniture parts such as drawers for moving. This increases the flexibility of the locking mechanism and the comfort of the user.

[0007] Preferably, the locking device includes at least one switching mechanism, such as a lock, by means of which the locking element on the guide rail can move between a locked position, an anti-tilt position, and a released position. Therefore, the user only needs to move the switching mechanism, such as the lock, to one of the three positions, for example by rotational movement, to achieve the anti-tilt function of fully locking, fully opening, or allowing only one movable furniture part to be moved to the open position at the same time for all movable furniture parts. Through the switching mechanism, for example, the guide rail having a stop for the locking element can move vertically, such that the locking element moves relative to the latch, particularly in the vertical direction.

[0008] In a preferred embodiment, a separate second switching mechanism may also be used to control only the release position, for example, to prevent unintentional incorrect actuation. The second switching mechanism may be concealed or spaced apart from the first switching mechanism and / or controlled via a separate actuating element. Mechanical or electromechanical locks, rocker switches, latches, or locks may be used as switching mechanisms that can be directly actuated or indirectly actuated, for example, via a lever, cable traction, or other transmission member, and can be moved to different positions.

[0009] Preferably, each latch is designed as an actuator that can move between a locked position and an unlocked position via a self-closing mechanism. The latch then moves only a short distance along the locking element. When moving between the unlocked and locked positions, in plan view, the latch can remain completely within the guide rail, thereby ensuring a compact design.

[0010] Each locking element preferably includes a rising ramp, and one of the latches can move against the rising ramp in an anti-tilt position to displace the locking element and a plurality of locking elements arranged above it upward along a guide rail. In this way, the displacement of the locking element on the rising ramp can be achieved effortlessly to move one latch from the locked position to the unlocked position. In this position, all other latches are then prevented from moving to the unlocked position.

[0011] Preferably, each locking element includes a wall to prevent the latch in the locked position from moving to the unlocked position. Thus, the wall acts as a stop for the latch, thereby preventing movable furniture parts from being in the closed position.

[0012] Additionally, each locking element preferably includes a receiving portion, for example, a channel-shaped receiving portion, into which the latch is movable in the unlocked position. In this way, each latch can be moved into the receiving portion in the unlocked position of one of the locking elements, and thus allows the movable furniture component to move in the opening direction.

[0013] For the flat construction of the locking device, the walls and rising ramps can be designed to protrude from the guide rails. On the other hand, a receiving portion with a channel is arranged between the walls and the rising ramps, thereby forming a recessed channel into which the latch can be inserted as needed.

[0014] The locking device according to the invention is preferably used in furniture comprising a furniture body having a plurality of furniture parts in the form of drawers, the movable furniture parts being lockable to the furniture body via the locking device.

[0015] For example, workshop equipment, practical equipment, or laboratory equipment designed to use movable drawers or push elements are also understood to be furniture according to the invention. Attached Figure Description

[0016] The invention will now be described in more detail with reference to the accompanying drawings and examples of embodiments. The drawings show:

[0017] Figure 1 A perspective view of furniture with a locking device according to the present invention is shown;

[0018] Figure 2 Showing without a driving element Figure 1 A view of the furniture;

[0019] Figure 3 Show Figure 2 Side view of the locking device;

[0020] Figure 4 It is shown that Figure 2 Exploded view of the locking device;

[0021] Figures 5A to 5G Several detailed views of the locking device in different positions are shown, and

[0022] Figure 6A and Figure 6B Two detailed views of the locking element of the locking device are shown. Detailed Implementation

[0023] Furniture 1 includes a furniture body 2, on which pull-out guides 4 are fixed to opposite side walls. Each pull-out guide 4 includes a fixed guide rail 5 and a movable rail 6, with at least one central rail optionally extending along the length of the drawer between them. A self-closing device 7 and / or an ejector device may be provided on the pull-out guides 4 to pull in or eject movable furniture parts 3 in the form of drawers.

[0024] A locking device 10 for movable furniture parts 3 is provided on at least one side wall of the furniture body 2. The locking device can control whether the movable furniture parts 3 can be moved to the open position via the pull-out guide 4.

[0025] The locking device 10 includes a guide rail 11 that inserts into a groove 12 on the side wall of the furniture body 2 and can move vertically via a switching mechanism 15. In this embodiment, one switching mechanism 15 is used to set all switching positions of the guide rail 11; optionally, the guide rail 11 can also be moved via multiple switching mechanisms 15.

[0026] like Figure 2 and Figure 3 As shown, the guide rail 11 extends over multiple pull-out guides 4. Only two pull-out guides 4 are shown, but more than two pull-out guides may also be mounted on the side wall of the furniture body 2.

[0027] like Figure 4 As shown, the fixed rail 5 for pulling out the guide is not directly mounted on the side wall, but is mounted via an insert spacer 13, particularly a plate. The spacer 13 includes a recess in the area of ​​the groove 12 for the guide rail 11. A plurality of locking elements 20 are displaceably held in the guide rail 11, these locking elements being, for example, made of plastic or metal as a molded body. The locking elements 20 are movable in the mounted position, and the spacer 13 prevents the fixed rail 5 from obstructing the locking elements 20. The groove 12 can also be made deeper and the spacer 13 omitted, or the guide rail 11 can be guided via other guiding elements (particularly linear bearings) instead of in the groove 12.

[0028] In this embodiment, the switching mechanism 15 includes a mechanical lock with a rotatable knob, through which a connecting element 14 mounted on a pin 19 in an elongated hole 18 can be moved vertically. The guide rail 11 can be raised or lowered via the connecting element 14. A stop 30 is provided in the lower region of the guide rail 11. Figure 3 This ensures that the locking element 20 moves together with the guide rail 11.

[0029] A latch 16, which can be coupled to the movable furniture component 3, is arranged on the locking element 20 and can move horizontally between a locked position and an unlocked position. In this case, the latch 16 moves only a short distance, for example less than 30 mm, and is coupled to the movable furniture component only at this distance when the pull-out movement begins. The coupling can be achieved, for example, via a self-closing mechanism as disclosed in DE20 2009 000 050 U1. Other coupling systems via actuators or other mechanisms are also possible.

[0030] Figures 5A to 5G The function of the locking device is shown in different positions of the latch 16 and the locking element 20.

[0031] exist Figure 5A In the locked position, the locking device 10 prevents all latches 16 from moving from the locked position on the left side of the guide rail 11 to the unlocked position on the right side of the guide rail 11 by means of the locking element 20. This is because the guide rail 11 is raised via the switching mechanism 15 and the connecting element 14, so that all latches 16 are positioned opposite the wall 22 of the locking element 20, which blocks movement in the horizontal direction. Figure 5A Move to the right in the middle.

[0032] If the switching mechanism 15 is moved to the anti-tilt position, for example by turning the knob 90°, the connecting element 14 is lowered. Figure 5B As shown in the anti-tilt position, all latches 16 are no longer located opposite the wall 22 on the locking element 20, but are adjacent to the rising ramp 23 of the locking element 20 above. Each rising ramp 23 is oriented at an angle to both vertical and horizontal.

[0033] If one of the movable furniture parts 3 is now moved in the opening direction, for example, the upper furniture part 3, then the latch 16 moves from the locked position to the unlocked position on the right side of the guide rail 11, as shown. Figure 5CAs shown. The latch 16 moves in this way to release the movable furniture part 3 and it can now move in the opening direction. In this process, the associated locking element 20 has moved upward against the rising ramp 23 by the movement of the latch 16, thereby all locking elements 20 above the latch also move upward according to the position of the latch 16. Therefore, the uppermost locking element 20 is directly adjacent to the web 17 on the connecting element 14 and cannot move further upward. If the movable furniture part 3 now applies force to the lower latch 16 to move from the locked position to the unlocked position, the latch 16 presses against the rising ramp 23 and attempts to further raise the locking elements 20 arranged above it. However, this movement is blocked by the upper latch 16 located in the unlocked position between two adjacent locking elements 20, thus ensuring that only one movable furniture part 3 can be moved out of the furniture body 2 at a time, thereby effectively preventing tilting.

[0034] Figure 5D The position of the upper latch 16, moved from the unlocked position back to the locked position, is shown by the arrow. The locking element 20 now contacts the latch 16 again via the rising ramp 23 and may move downward along the guide rail 11 due to gravity. An accumulator may also be arranged on the web 17 to support this movement, which presses the locking element 20 back to its initial position. When the latch 16 is in the locked position, the other movable furniture part 3 and the latch 16 thus connected to it can now be moved to the unlocked position.

[0035] exist Figure 5E In the diagram, the locking device 10 is shown in an anti-tilt position, wherein optionally, one of the latches 16 can be moved to the unlocked position, in which case the associated locking element then moves upward via the rising ramp 23. If the user wishes to disassemble the movable furniture parts 3 and move them simultaneously or independently in the opening direction, the connecting element 14 and the guide rail 11 can be raised via this switching mechanism or another switching mechanism 15, as shown. Figure 5F As shown. For this purpose, the knob on the switching mechanism 15 can be rotated 90°, causing the connecting element 14 to move along the pin 19 within the elongated hole 18 on the connecting element 14. In this raised release position, all latches 16 are in the area of ​​the receiving portion 24 on the locking element 20. The receiving portion 24 allows all latches 16 to move simultaneously from the locked position on the left side of the guide rail 11 to the release position on the right side of the guide rail 11, as shown. Figure 5G As shown. Both latches 16 have been moved to the unlocked position and are located within the receiving portion 24 on the locking element 20. The terms "left," "right," "upper," and "lower" are for reference only. Figure 1 The illustration in Figure 5 can be changed as needed, depending on the installation situation.

[0036] Figure 6A and Figure 6B The locking element 20 is shown in detail. This locking element can be made of, for example, plastic or metal as a molded body and can be constructed as one or more pieces. Each locking element 20 includes a guide web 21 surrounded by an edge on a guide rail 11, such that the locking element 20 is held along the guide rail 11 in a linearly displaceable manner. The locking element 20 includes a plate-shaped section disposed in the guide rail 11. A protrusion having a wall 22 protrudes from this plate-shaped section, which, in the locked position, prevents all latches 16 from moving to the unlocked position.

[0037] In addition, the locking element 20 includes an upward ramp 23 formed at the lower end and protruding from the guide rail 11, such that when moving from the locked position to the unlocked position, the latch 16 can move the locking element 20 upward along the guide rail 11.

[0038] Between the wall 22 and the stop slope 23, there is a channel-shaped receiving portion 24, which is recessed and allows for the reception of latches 16. If the latches 16 are arranged at the height of the receiving portion 24, all latches 16 can move from the locked position to the unlocked position simultaneously.

[0039] In the illustrated embodiment example, only two movable furniture parts 3 are provided as actuating elements, each actuating element moving the latch 16. Of course, the locking device can be used for more than two movable furniture parts 3.

[0040] The locking device 10 can be moved to three positions via a single switching mechanism 15: an anti-tilt position, a locked position, and a released position. The release position can also be provided via a separate lever or actuating element, such that only the locked position and the anti-tilt position can be adjusted via the switching mechanism 15.

[0041] List of reference numerals

[0042] 1 Furniture

[0043] 2 furniture main body

[0044] 3 movable furniture parts

[0045] 4. Pull out the guide piece

[0046] 5 fixed tracks

[0047] 6 movable tracks

[0048] 7 Self-closing device

[0049] 10 locking devices

[0050] 11 guide rails

[0051] 12 grooves

[0052] 13 Spacers

[0053] 14 Connecting elements

[0054] 15 Switching Mechanism

[0055] 16. Latch

[0056] 17. Web

[0057] 18 Slender holes

[0058] 19 sales

[0059] 20 Locking elements

[0060] 21. Guiding web

[0061] 22 wall

[0062] 23. Inclined Plane

[0063] 24. Reception area

[0064] 30 Stop components.

Claims

1. A locking device (10) for movable furniture parts (3), having: a) a guide rail (11) on which a plurality of locking elements (20) are displaceably held; b) a plurality of latches (16), each latch being coupleable to a movable furniture part (3) and movable between a locked position and an unlocked position and in the locked position blocking the opening of the movable furniture part (3); c) wherein the locking elements (20) are movable into a locked position in which the locking elements (20) block the movement of all latches (16) into the unlocked position; d) and the locking elements (20) are displaceable along the guide rail (11) from the locked position into the unlocked position via one of the latches (16) in the anti-tilt position and block all other latches (16) from being moved into the unlocked position when one of the latches (16) is positioned in the unlocked position, so that only one of the movable furniture parts (3) can be moved into an open position, the locking elements (20) are movable into a release position in which all the latches (16) can be moved from the locked position into the release position on or in the accommodation of the locking element (20). The locking device (10) comprises at least one switching mechanism (15) by which the locking elements (20) on the guide rail (11) are movable between the locked position, the anti-tilt position and the release position. The locking device (10) comprises a first switching mechanism (15) by which the locking elements (20) on the guide rail (11) are movable between the locked position and the anti-tilt position and a second switching mechanism (15) by which the locking elements (20) on the guide rail (11) are movable between the anti-tilt position and the release position. The guide rail (11) with a stop (30) for the locking elements (20) is movable in the vertical direction via the switching mechanisms (15). Each latch (16) is formed as a driver which is movable between the locked position and the unlocked position via a self-closing device (7). characterized in that Each locking element (20) comprises a rising ramp (23) and in the anti-tilt position a latch (16) is movable against the rising ramp (23) to displace the locking element (20) and a plurality of the locking elements (20) arranged above it upwards along the guide rail (11).

2. The locking device of claim 1, wherein, Each locking element (20) comprises a wall (22) for blocking a latch (16) in the locked position from moving towards the unlocked position.

3. The locking device of claim 1, wherein, Each locking element (20) comprises an accommodation (24) formed as a channel and the latches (16) are movable along the channel into the unlocked position.

4. Locking device according to claim 2 or 3, characterized in that ​ 5. The locking device of claim 1, wherein, ​ 6. The locking device of claim 1, wherein, ​ 7. The locking device of claim 6, wherein, ​ 8. The locking device of claim 7, wherein, ​ 9. The locking device of claim 7, wherein, Said wall (22) and said rising slope (23) are formed so as to protrude from said guide rail (11).

10. The locking device of claim 8, wherein, Said housing (24) for said latch (16) is arranged between said wall (22) and said rising slope (23) on said locking element (20).

11. Furniture (1) having a furniture body (2) and a plurality of movable furniture parts (3) in the form of drawers, which can be locked via a locking device (10) according to any one of the preceding claims.

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