Apparatus for controlling the movement of a rail guide, rail guide, and furniture

EP4701483A1Pending Publication Date: 2026-03-04GRASS GMBH
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2026-03-04

AI Technical Summary

Technical Problem

Existing devices for controlling the movement of rail guides in furniture lack alternatives for efficient force-assisted and damped movement, particularly in providing a reliable mechanism for opening and closing furniture parts like drawers.

Method used

A device comprising a fixed rail, a movement rail, a power storage system, a base component, and a locking arrangement with a heart curve and locking element that allows force-assisted displacement in the opening direction while blocking movement until manually overridden in the closing direction, utilizing a bent wire component as the locking element for secure operation.

Benefits of technology

Enables reliable and user-friendly operation of rail guides by allowing force-assisted opening and secure locking, ensuring smooth movement and synchronization of two rail guides for synchronized operation of furniture parts, enhancing the functionality of rail guides in furniture systems.

✦ Generated by Eureka AI based on patent content.

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  • Figure EP2024060227_31102024_PF_FP_ABST
    Figure EP2024060227_31102024_PF_FP_ABST
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Abstract

The invention relates to an apparatus (7, 8) for controlling the movement of a rail guide (2, 3) which comprises a fixed rail (4) and a moving rail (6) that is linearly displaceable in an opening direction and in a closing direction, wherein: the apparatus (7, 8) is designed for force-assisted displacement of the moving rail (6) in the opening direction and has an energy accumulator (11), a main component (12) and a carriage (14) that is displaceable with respect to the main component (12); the carriage (14) is movable in the opening direction under the effect of the loaded energy accumulator (11) and, when the apparatus (7, 8) is mounted on the rail guide (2, 3), carries along the moving rail (6) in the opening direction; and the apparatus (7, 8) has a locking arrangement (17) with a cardioid (18) and a locking body (19) that can be brought into contact along the cardioid (18), so that when the energy accumulator (11) is loaded, a displacement of the carriage (14) in the opening direction is blocked. According to the invention, the carriage (14) has the cardioid (18).
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Description

[0001] "Device for controlling the movement of a rail guide,

[0002] Rail guidance and furniture"

[0003] State of the art

[0004] Devices for controlling the movement of a rail guide for furniture parts are known. This applies to rail guides such as partial or full extension slides. For example, motion control devices are used for a force-assisted and / or damped movement of a movement rail of the partial or full extension slide. The device is used to influence the movement of the furniture part relative to a furniture body to which the furniture part is attached via the rail guide. For example, such furniture parts are linearly movable furniture parts such as drawers, which are usually movably mounted on the furniture body via two identical rail guides.

[0005] Object and advantages of the invention

[0006] The object of the present invention is to provide alternatives for the movement control of rail guides in the furniture sector, in particular to provide an alternative device for the movement control of a rail guide.

[0007] This object is achieved by the independent claims. The dependent claims show expedient and advantageous developments of the invention. The invention is based on a device for the movement control of a rail guide, which comprises a fixed rail which can be connected to a furniture body and a movement rail which can be coupled to a furniture part, wherein the movement rail is linearly displaceable in an opening direction and in a closing direction relative to the fixed rail, wherein the device, when arranged on the rail guide, is designed for a force-assisted displacement of the movement rail from a closed position of the movement rail in the opening direction, wherein the device has a force accumulator, a base component and a carriage which can be displaced relative to the base component,The slide is movable in the opening direction under the action of the charged energy accumulator and, when the device is mounted on the rail guide, carries the movement rail in the opening direction. The device comprises a locking arrangement with a heart-shaped curve and a locking member that can be brought into contact along the heart-shaped curve, so that, when the energy accumulator is charged, in a locking position of the device, displacement of the slide in the opening direction is blocked. The movement of the movement rail in the closing direction is opposite to the movement in the opening direction.

[0008] For example, the locking member is a component mounted on the base component. For example, the locking member is designed as a control pin.

[0009] For example, the locking member is an end section of an elongated component. For example, the component which comprises the locking member is an elongated component which is, for example, bent multiple times. For example, the component which comprises the locking member is a bent wire component. For example, the locking member is an end section of a wire component which is bent at an angle. For example, the locking member is mounted on the base component in an elastically deflectable manner. For example, the locking member is elastically deflectable, for example from a basic position on the base component into a deflected position and can be automatically returned to the basic position. For example, the elastically achievable positions of the locking member are predetermined by the locking member resting on the heart curve, for example during a movement or a position of the carriage relative to the base component.

[0010] For example, the heart-shaped curve is a guide track. For example, the heart-shaped curve is a guide track, with a mechanical guide for the locking element being set up along the guide track. For example, the locking element is held at a catch point on the guide track, with the locking element being held in a blocking position of the slide. For example, in the blocking position the slide is secured against further movement in the opening direction of the slide relative to the base component or the movement rail. A slight movement of the slide in the closing direction is possible to release the blocking, for the touch latch function.

[0011] For example, the basic component is fixed in position to a rail of the rail guide when assembled.

[0012] For example, the blocking position is held by the action of the charged energy accumulator on the slide. The blocking position of the locking element can only be released by moving the slide from the outside in a closing direction. The locking element then moves out of the catch point, allowing the locking element to continue moving along the guide track. The movement in the closing direction of the slide in the blocking position occurs, for example, when a user presses on the furniture part, with the movement rail taking the slide with it in the closing direction.

[0013] For example, the heart curve is designed to guide the locking member so that it can slide along the heart curve. For example, the heart curve is designed as a guide. For example, the heart curve is designed as a guide track. For example, the heart curve is designed as a slotted guide. For example, the heart curve is designed as a heart curve slotted guide. For example, the heart curve is raised or recessed compared to adjacent sections. For example, the heart curve is designed as a raised or recessed contour compared to adjacent sections. For example, the heart curve has a width that is adapted to the width of the locking member. For example, the heart curve has a depth that is adapted to the longitudinal extent of the locking member.

[0014] For example, the device is designed as an opening device and / or as an ejection device for a furniture part, for example as a drawer opening device or as a drawer ejection device.

[0015] For example, the device comprises the base component, the slide, the energy accumulator, the locking member, and a latch member. These elements are each formed in one piece, for example, and can be removably assembled to form the device.

[0016] For example, the base component comprises a connecting housing which is, for example, detachably connectable to the remaining base component. For example, the connecting housing comprises an attachment section for a gear element. For example, the locking member is received, for example mounted, on the connecting housing. For example, a bent wire component is received on the connecting housing or on the remaining base component. For example, the wire component comprises the locking member, for example as a bent end of the wire component. For example, another bent end of the wire component is fixedly but, for example, detachably attached to a bearing point on the base component.

[0017] For example, the position of the connection housing is adjustable relative to the base component. For example, the position of the connection housing is adjustable relative to the base component in the closing direction and / or in the opening direction. For example, the position of the connection housing is continuously adjustable relative to the base component, for example in the closing direction and / or in the opening direction. For example, the position of the connection housing relative to the base component can be adjusted manually or without a tool, for example by turning a knurled screw which is rotatably mounted on the base component, for example.

[0018] For example, the locking member is designed as an end section of a wire component. For example, the locking member is designed as a section of an elastically deformable wire element. For example, the locking member is designed as a section of a wire element, wherein the wire element comprises a straight section and a bent section, which are connected to one another, e.g. in one piece.

[0019] A rail guide designed as a partial extension comprises a fixed rail that can be connected to a furniture body and a movement rail that can be coupled to the furniture part. For example, the fixed rail and the movement rail can be telescopically moved relative to each other.

[0020] With a full extension, a center rail is located between the fixed rail and the moving rail. For example, the fixed rail, the center rail, and the moving rail can be telescoped relative to each other.

[0021] As a rule, the rails of a rail guide, a partial extension or a full extension, can be moved relative to one another via bearing assemblies, for example comprising rolling element bearings such as ball and / or roller bearings. The bearing assemblies act between adjacent rails of the rail guide. For example, in the case of furniture with comparatively large fronts, such as comparatively wide drawers that are guided on a furniture body via two rail guides and that are opened via a touch-latch functionality, a synchronous touch-latch release is set up. Accordingly, the locking position of the device can be canceled by moving the carriage in the closing direction.

[0022] The essence of the invention is that the carriage encompasses the heart curve.

[0023] This provides an alternative device. For example, the heart-shaped curve moves along with the carriage. For example, the carriage is one-piece, with the heart-shaped curve being formed as a material recess on the carriage. For example, the heart-shaped curve is formed on a surface side of the carriage. For example, the heart-shaped curve is formed on a top side or a bottom side of the carriage, based on an orientation in the assembled state of the device on the rail guide mounted on the furniture.

[0024] For example, the heart curve is designed as a loop-shaped, closed curve. One side of the heart curve is open for the engagement of the locking member in the heart curve. For example, the heart curve is designed to be recessed, e.g. in a track-like manner. For example, the heart curve is designed to be groove-shaped. For example, a depth and / or a width of the heart curve is matched to the dimensions of the locking member. For example, the locking member engages in the heart curve with little play. For example, the locking member engages in the heart curve with little play and is guided so that it can move when the heart curve and the locking member move relative to one another.

[0025] For example, a bearing point of the locking member or of a locking component on which the locking member is present remains in a fixed position on the base component. The locking member remains in a fixed position. For example, the locking member is adjustable in its position relative to the heart-shaped curve. For example, the locking member has a section that is guided along the heart-shaped curve that can be moved with the carriage. For example, the section of the locking member assumes a locked position when the energy accumulator is charged. For example, the heart-shaped curve has a locking point for engagement of the locking member in the locking position. For example, the locking member is held in the locking position by a force. For example, the force that holds the locking member in the locking position is provided by the charged energy accumulator.For example, the force that holds the locking member in the locking position is a compressive force or a tensile force.

[0026] For example, the energy accumulator comprises a compression or tension spring, for example a coil spring.

[0027] For example, the device is made of a plastic material. For example, the locking member is made of a metal material and the rest of the device is made of a plastic material.

[0028] For example, the device is formed as an elongated component.

[0029] For example, the gear element has a counter-gear contour which is formed, for example, on the outside circumference of the gear element. For example, the gear element has a counter-gear contour which is present on the outside circumference of the gear element. For example, the counter-gear contour is present on the gear element in the shape of an outer cylinder. For example, the gear element has a counter-gear contour which is formed, for example, as an outside tooth contour such as an outside pinion contour.

[0030] For example, the gear element has a counter-gear contour which is formed over at least approximately half a width of the gear element, relative to a rotation axis about which the gear element is rotatable relative to the base component when the carriage moves linearly on the base component.

[0031] For example, a synchronization device is provided with a connecting element, wherein the connecting element is designed to connect the device to another corresponding device, wherein the two devices are spaced apart from one another, wherein the two devices in the connected state are designed to control the movement of two rail guides for a common furniture part, and wherein the connecting element connects the two carriages of the two devices to one another in such a way that a synchronized cancellation of the blocked position of the carriage of one device and a carriage of the other device is used, wherein a linear movement of the carriage and a rotational movement of the connecting element about its longitudinal axis are mechanically coupled.

[0032] For example, a joint movement control of the two spaced devices is carried out via the synchronization device.

[0033] For example, the two devices are designed to be arranged on a respective associated rail guide, wherein the two rail guides serve to move the same furniture part.

[0034] For example, the connecting element can be detachably connected to a gear element. For example, the gear element is rotatably mounted on the device, for example over a partial circumference in the manner of a plain bearing. For example, the connecting element can be connected in a rotationally fixed manner or, in the synchronized operating state of the two devices, is connected to the respective gear element. For example, the gear element has a counter-gear contour that is designed to match the gear contour on the carriage.

[0035] For example, the gear element is designed as a separate component which has the counter-gear contour on the outside. For example, the counter-gear contour is designed as a pinion. For example, the counter-gear contour meshes with the gear contour on the carriage or of the carriage. For example, the gear element has the counter-gear contour which is gear-connected to the gear contour on the carriage. For example, the gear element is mounted on the base component and rotatable about a rotational axis of the gear element.

[0036] For example, the connecting element, for example a longitudinal end such as a longitudinal end portion of the connecting element, is detachably connectable to the transmission element.

[0037] For example, the counter-gear contour on the gear element is a tooth contour, such as an externally cylindrical tooth contour, such as a pinion contour. For example, the gear element includes a pinion, such as a circumferential external tooth contour.

[0038] For example, the connecting element is a rigid shaft such as a rotary shaft, for example, a rod element. For example, the connecting element has an essentially cylindrical shape on the outside with two longitudinally extending contours, such as two bead-like, identical, diametrically opposed protrusions.

[0039] For example, a first longitudinal end of the connecting element is detachably connectable to a gear element that is present on one device, wherein a second longitudinal end of the connecting element is detachably connectable to the other device, for example detachably connectable to a corresponding gear element on the other device. Accordingly, such an arrangement has exactly two identically acting devices. For example, each of the two devices is present on an associated rail guide. For example, exactly two rail guides are provided on a furniture part for the displaceable movement of the furniture part relative to a furniture body.

[0040] For example, the gear element is mounted on the base component, for example, on a connecting housing of the base component. For example, the connecting housing can be detachably connected to the remaining base component.

[0041] For example, the gear element is mounted on the base component so that it can rotate about a rotational axis of the gear element. For example, the mounted gear element rotates about a rotational axis that coincides with the rotational axis of the connecting element connected to the gear element. For example, the rotational axis of the connecting element coincides with its longitudinal axis.

[0042] For example, the gear element has the counter-gear contour, which is gear-connected to the gear contour like a tooth contour on the carriage. For example, the counter-gear contour of the gear element meshes with the gear contour on the carriage. For example, a pinion contour of the gear element meshes with a rack contour on the carriage. The gear contour, such as the rack contour, can be integrally connected to the remaining part of the carriage, or the gear contour, such as the rack contour, is formed by a component connected to the remaining part of the carriage.

[0043] In principle, other gear mechanisms are also conceivable, such as a friction-face gear. For example, the gear element with the counter-gear contour is positively coupled to the gear contour, such as the rack contour of the slide. For example, the gear coupling acts in both directions of movement of the rotating gear element and the movable slide.

[0044] For example, when the carriage moves linearly in a first direction, such as the opening direction, the gear element of the associated device, and thus the connecting element connected to the gear element, rotates in a first direction of rotation. The other gear element on the other device is also rotated accordingly.

[0045] For example, when the carriage moves linearly in a second direction, for example in the closing direction, which is opposite to the first direction of linear movement of the carriage, the gear element of the associated device and thus the connecting element connected to the gear element rotates in a second direction of rotation which is opposite to the first direction of rotation.

[0046] In this way, both devices or both slides are moved linearly and thus synchronized to simultaneously release the locking position of both devices, even if the pressure force applied from the outside acts in the area of ​​a front of the furniture part which is closer to one of the two devices.

[0047] For example, the carriage comprises a gear contour, wherein the gear contour is designed for the geared movement coupling of the linear movement of the carriage and a rotational movement of the connecting element about its longitudinal axis.

[0048] Between the gear contour and the connecting element is the

[0049] Gear element present, e.g. for transmitting the linear movement of the slide and the rotary movement of the connecting element.

[0050] For example, the gear contour is fixed to the slide, e.g. rigid, e.g. integrally formed.

[0051] For example, the carriage is designed as a one-piece component comprising the gear contour. For example, the gear contour can be moved linearly together with or on the carriage. For example, the gear contour can be moved linearly back and forth together with the carriage. For example, the carriage and thus the gear contour, such as a rack section, can be moved linearly back and forth or linearly back and forth relative to the base component.

[0052] For example, the carriage is linearly guided back and forth on the base component. For example, the carriage has a length which is less than a length of the base component. For example, the longitudinal direction of the carriage and the longitudinal direction of the base component coincide. For example, the direction of movement of the carriage is in the longitudinal direction of the carriage or in the longitudinal direction of the base component. For example, the longitudinal direction of the carriage coincides with the longitudinal direction of the device, with the opening direction and with the closing direction of the movement rail.

[0053] For example, the heart-shaped curve is formed on the upper side of the slide, depending on the mounted state of the device on the rail guide. The orientation specification is based on the operating state of the rail guide. For example, this refers to a rail guide designed as a full extension, with a center rail between the fixed rail and the moving rail.

[0054] For example, a section of the base component extends into an area below the carriage. For example, the carriage is supported and guided on this section of the base component. For example, a section of the base component is located on a side of the carriage that faces away from, or is opposite, the side with the heart curve.

[0055] For example, in the case of a rail guide that is designed as a full extension, there is a driver on the movement rail for canceling the locking position of the device when the movement rail moves from a closed position or from a retracted position on the rail guide in the closing direction, according to the touch-latch function. When coupled by the driver, the carriage can move along with the movement rail. The device is provided on the fixed rail or, for example, on a carcass rail for full extension. For example, the device is provided on the fixed rail in such a way that the base component is attached to the fixed rail, for example is releasably plugged on.

[0056] For example, in a rail guide designed as a partial extension, the heart-shaped curve is formed on the underside of the carriage, depending on the arranged state of the device on the rail guide. The orientation specification is related to a use state of the rail guide. For example, this refers to a rail guide designed as a partial extension, without a center rail, but with only a fixed rail and a moving rail.

[0057] For example, a section of the base component is located above the carriage. For example, a section of the base component is located on a side of the carriage that is opposite or opposite the side with the heart curve.

[0058] For example, a driver is provided on the fixed rail for releasing the locking position of the device when the movement rail moves in the closing direction. The device is provided on the movement rail or, for example, a drawer rail for partial extension. For example, the device is provided on the movement rail in such a way that the base component is attached to the movement rail, for example, it is detachably plugged in.

[0059] For example, the heart-shaped cam and the locking member are coordinated with one another in such a way that the locking position of the device can be canceled by moving the slide in the closing direction. For example, the cancellation occurs when the device is mounted on the rail guide and the movement of the movement rail pushed into the rail guide is carried out in the closing direction. When the device is mounted on a rail guide mounted on a piece of furniture, the cancellation is achieved, for example, by moving the furniture part in the closed position on the furniture body in the closing direction, for example by a few millimeters. This corresponds, for example, to touch-latch operation or a touch-latch function.

[0060] The locking position is released by the touch-latch function when the rail guide is arranged on the furniture, between the furniture part and the furniture body, and with the device attached, by moving the furniture part and thus the movement rail connected to the furniture part from the closed position into the closing direction. For this purpose, for example, a closing gap is required between one side of the furniture part positioned closed on the furniture body and the opposite side of the furniture body, for example a closing gap of a few millimeters.

[0061] For example, in the locking position of the device, the locking member assumes a locking position that can be unlocked by a movement of the slide in the closing direction triggered from the outside by a user pressing against the furniture part. For example, during an unlocking process, the locking member can be moved from a blocked position on the heart-shaped curve in the locking position into a release direction.

[0062] The locking element, which is moved out of the blocked position when the lock is released or the unlocking process is then freely but guidedly movable along the heart-shaped curve. The heart-shaped curve and the locking element move relative to one another. The charged energy accumulator takes effect and pushes or pulls the carriage in the opening direction, which takes the movement rail along with it via the driver and thus moves the furniture part in the opening direction. The driver then separates from the carriage and the movement rail with the furniture part can move freely on the furniture body in accordance with the movement of the movement rail relative to the fixed rail.

[0063] For example, the carriage is designed such that, in the locking position of the device, the carriage is positioned in an inserted position on the base component. For example, the movement rail is held coupled to the carriage in an inserted position or in a closed position.

[0064] For example, in the inserted position or in the closed position of the movement rail, a latching member on the carriage holds a driver on the movement rail and thus the movement rail with the furniture part arranged on it.

[0065] For example, with regard to a full extension of the driver, a driving element is formed on the movement rail, which can be coupled to the carriage, for example with a latch element on the carriage. For example, in the coupled state the carriage and the movement rail move together. Or the carriage and the movement rail are stationary together in the inserted position or in the closed position of the movement rail with a charged energy accumulator in the locking position of the device. When the movement rail and carriage are coupled, if the carriage is blocked against movement in the locking state of the device, movement of the movement rail relative to the fixed rail or relative to the middle rail and fixed rail is also blocked, or the movement blockage can at least only be released by an applied counterforce from the outside.

[0066] When the movement rail moves in the closing direction, with the energy accumulator discharged and the slide extended, a latching mechanism drives the slide in the closing direction, thereby charging the energy accumulator. The latching mechanism is pivotally mounted on the slide. For example, the latching mechanism can be coupled to the driver, which belongs to the movement rail or is connected to it, based on a full extension.

[0067] For example, the gear contour of the slide is designed as a tooth contour.

[0068] For example, the gear contour present on the carriage is a tooth contour that is designed as a rack.

[0069] For example, the tooth contour of the rack is formed over half the length of the carriage. For example, a width of the tooth contour corresponds at least approximately to a width of the carriage. For example, the tooth contour is formed in a rear section of the carriage or at a front section of the carriage, based on the mounted state on the rail guide present on a piece of furniture.

[0070] For example, the rack forms part of a rack and pinion drive for rotating the connecting element during a linear displacement of the carriage relative to the base component. For example, the rack and pinion gear has the counter-gear contour on the gear element. The gear connection between the carriage and the connecting element is such that rotating the connecting element causes a linear displacement of the carriage and vice versa. This enables the synchronization of two devices connected via the connecting element.

[0071] For example, the tooth contour on the carriage is oriented upwards in the arranged state, e.g. on a horizontally oriented outer side of the carriage.

[0072] For example, the tooth contour is formed on the same side of the carriage on which the heart curve is formed.

[0073] For example, the tooth contour and / or the heart curve is designed on an outer side of the carriage which is flat in the use state, for example on a horizontally aligned outer side of the carriage.

[0074] For example, a base plane on the carriage, on which the tooth contour is built, and a base plane on the carriage, on which the heart curve is built, are slightly offset from each other in the direction of a height of the carriage.

[0075] For example, the tooth contour and / or the heart curve is designed on an outer side of the carriage which is vertically aligned in the use state.

[0076] For example, the tooth contour and / or the heart curve is designed on an underside of the slide which is horizontally aligned in the use state.

[0077] For example, the tooth contour and / or the heart curve is designed on an upper side of the carriage which is horizontally aligned in the use state.

[0078] For example, the gear contour of the carriage is adjacent to a receiving section of the device, wherein the receiving section is designed to accommodate a gear element. For example, the gear element serves to connect the connecting element and the carriage. For example, the gear element serves to couple the movement of the carriage and the movement of the connecting element. For example, the receiving section is formed on the base component. For example, the receiving section is formed by a round opening or a recess with a wall, wherein the wall at least partially encloses the round opening circumferentially. For example, a central axis of the round opening, such as a central axis for the circumferential shape of the wall of the round opening, coincides with the axis of rotation of the connecting element when the connecting element is attached to the gear element.

[0079] For example, the device is designed in such a way that the central axis is aligned transversely to the circumferential shape of the wall of the round opening, e.g. perpendicularly to the direction of displacement of the slide on the base component.

[0080] For example, the device is designed in such a way that the axis of rotation of the connecting element is aligned transversely, e.g. perpendicularly, to the direction of displacement of the carriage on the base component.

[0081] For example, a volume enclosed by the receiving section or an enclosed space is adjacent to the gear contour on the slide. For example, in every possible displacement position of the slide, a section of the gear contour projects into the area of ​​the volume enclosed by the receiving section. For example, a section of the gear contour projects beyond the volume enclosed by the receiving section. For example, a section of the rack projects into the receiving section or into the volume enclosed by the receiving section.

[0082] For example, the gear contour of the carriage is linearly movable in a tangential direction to a rotational axis of the connecting element. For example, the rotational axis of the connecting element is aligned transversely to the longitudinal direction of the two connected devices. For example, the rotational axis of the connecting element is aligned transversely to the direction of movement of the carriage. For example, the rack contour is movable in accordance with the linear back and forth movement of the carriage. For example, a section of the rack contour engages in the free volume enclosed by the receiving section. The section of the rack contour in the region of the receiving section can be gear-connected to the counter-gear contour on the gear element when the gear element is accommodated in the receiving section.

[0083] For example, the gear contour of the carriage is in geared engagement with a counter-gear contour which is formed on the gear element. The gear element and the connecting element can be connected in a rotationally fixed manner, for example detachably and firmly. For example, a movable locking member of the gear element is provided which can be brought from an open position into a detent position on the gear element. When the end section of the connecting element is inserted into the gear element, for example plugged in, the connecting element can be firmly fixed to the gear element in the detent position of the locking member. For example, the locking member is provided so that it can be moved on the remaining part of the gear element via a joint such as a film hinge. For example, the locking member is provided on the gear element so that it can be opened and closed into the detent position.

[0084] For example, the counter-gear contour is designed as a gear or as a pinion section or as a pinion.

[0085] For example, the gear element is designed as a separate component, wherein the gear element is gear-connected to the carriage. For example, the gear contour of the carriage and the counter-gear contour of the gear element are gear-engaged with one another. For example, the gear element is detachably connected to the base component, e.g., on or in the receiving section.

[0086] For example, the gear element is designed for the detachable attachment of an end portion of the connecting element.

[0087] For example, the counter-gear contour of the gear element is accommodated in the receiving section on the base component, e.g., circumferentially mounted on a wall of the receiving section. The counter-gear contour is connected to the gear contour of the slide, e.g., to the rack.

[0088] For example, a further section belonging to the gear element or one axially adjacent to the counter-gear contour serves to insert a longitudinal end section of the connecting element into the gear element. For example, the connecting element is inserted in a parallel alignment or slightly obliquely to the longitudinal axis of the connecting element to the rotational axis of the gear element, in the radial direction to the rotational axis of the gear element.

[0089] For example, the section of the gear element adjacent to the counter-gear contour has the closure member, which is pivotable relative to the rest of the gear element via a joint such as a film hinge. The closure member serves to open the gear element for the insertion of the connecting element and for the subsequent clip-on closure of the axially adjacent section to fix the inserted connecting element to the gear element.

[0090] For example, the receiving section has a wall which is present circumferentially to the axis of rotation of the gear element. For example, the wall is designed such that the wall is present with a small gap or in contact with an outer side of the counter-gear contour. For example, the receiving section is open for inserting the gear element. For example, the wall is designed to be partially or completely annular on the base component with respect to the axis of rotation of the gear element. For example, the receiving section is designed in the manner of a ring opening or in the manner of a round opening for inserting the gear element.

[0091] For example, a motion control system for two rail guides is proposed, wherein the two rail guides serve to jointly guide the motion of a furniture part, wherein the motion control system comprises two devices according to one of the embodiments described above.

[0092] For example, the two devices are designed identically. For example, the two devices are designed for arrangement on a respective associated rail guide, wherein the two rail guides are used to move the same piece of furniture. For example, the two devices are synchronized with one another via the connecting element, so that a touch-latch function occurs simultaneously and identically in both devices when, in the assembled state, the closed piece of furniture is moved in the closing direction by, for example, a few millimeters. The connecting element rotates simultaneously with the sliding movement of the carriages of the two devices.

[0093] For example, a rail guide is proposed with a fixed rail that can be connected to a furniture body and with a movement rail that can be coupled to a furniture part, wherein a device according to one of the embodiments discussed above is provided.

[0094] Finally, a piece of furniture is proposed with a furniture body and a movable furniture part, wherein two rail guides and a motion control system as described above are provided. Figure description

[0095] Further features and advantages of the invention are explained in more detail using schematic embodiments. In detail:

[0096] Fig. 1 a motion control system and two rail guides in perspective view,

[0097] Fig. 2 shows an enlarged section of Fig. 1,

[0098] Fig. 3 the arrangement from Fig. 1 in a front view,

[0099] Fig. 4 shows a rail guide and part of a device according to the arrangement of Fig. 1 in perspective,

[0100] Fig. 5 shows the part of the device shown in Fig. 4 enlarged,

[0101] Fig. 6 the part of the device shown in Fig. 5 without a

[0102] connection housing,

[0103] Fig. 7 shows a section of the arrangement according to Fig. 5 from above with a transparent cover of the arrangement,

[0104] Fig. 8 from above a carriage of the arrangement according to Fig. 5 with a locking component comprising a locking member,

[0105] Fig. 9 the arrangement according to Fig. 8 without the locking component,

[0106] Fig. 10 the locking component from Fig. 8 comprising the locking member in perspective in isolation,

[0107] Fig. 11 shows a perspective view of a gear element according to the devices shown in Fig. 1-3, Fig. 12 shows the gear element according to Fig. 11 in another perspective view,

[0108] Fig. 13 shows another rail guide and part of an alternative device in a representation according to Fig. 4,

[0109] Fig. 14 shows a carriage of the device according to Fig. 13 in an enlarged perspective view,

[0110] Fig. 15 shows a part of the device from Fig. 13 without a connection housing and

[0111] Fig. 16 shows the arrangement according to Fig. 15 without a locking component.

[0112] The same reference symbols are sometimes used for corresponding elements of different embodiments.

[0113] Fig. 1 shows a motion control system 1 on two rail guides 2 and 3, each designed as a full extension with a fixed rail 4, a center rail 5, and a motion rail 6. The motion control system 1 comprises a right-hand device 7 for controlling the motion of the right rail guide 2 and a left-hand device 8 for controlling the motion of the left rail guide 3. A synchronization device 9 comprises a connecting element 10 that connects the devices 7 and 8.

[0114] The two rail guides 2 and 3 serve to guide the linear movement of a drawer on a furniture body of a piece of furniture (not shown). Accordingly, the movement rail 6 is linearly displaceable relative to the fixed rail 4, which can be fixedly positioned on the furniture body, in an opening direction RI and in a closing direction R2.

[0115] The devices 7 and 8 each comprise a force accumulator 11 hidden in the figures, a base component 12 with a connecting housing 13, a slide 14 which is displaceable relative to the base component 12 and on which a latching member 15 is provided which interacts with a driver 16 on the movement rail 6.

[0116] The devices 7, 8 comprise a locking arrangement 17 with a heart curve 18 and a locking member 19 which can be brought into contact along the heart curve 18 and which is provided on a locking component 20 (see Fig. 10).

[0117] The carriage 14 has a gear contour 21 for the geared movement coupling of the linear movement of the carriage 14 and a rotational movement D of the connecting element 10 about a longitudinal axis L of the connecting element 10.

[0118] A receiving section 22 of the device 7, 8 is designed to accommodate a gear element 23 (see Figs. 11, 12). A counter-gear contour 24 is formed on the gear element 23. The counter-gear contour 24 meshes with the gear contour 21. The gear element 23 enables a detachable attachment of an end section of the connecting element 10.

[0119] The section of the gear element 23 adjacent to the counter-gear contour 24 has a locking member 26 which can be pivoted relative to the rest of the gear element 23 via a joint 27 such as a film hinge. The end of the locking member 26 remote from the joint 27 can be locked via locking means 28 to lock the locking member 26 in its closed position as shown in Figures 11 and 12, but shown without a connecting element 10, to secure an inserted connecting element 10. The receiving section 22 has a wall 25 which is formed circumferentially to the axis of rotation of the inserted connecting element 10.

[0120] The devices 7 and 8 function as ejection devices, in which the synchronization device 9 with the gear element 23 and the connecting element 10 can also be omitted.

[0121] In the device 8 for a rail guide designed as a partial extension according to Figure 13 with a fixed rail 4 and a movement rail 6, a heart curve 18 is, in the use state on the furniture, pointing downwards or open downwards or oriented downwards, as illustrated in Figures 14-16.

[0122] The device 8 functions in the same way as the device 7 or 8 for the rail guides 2 and 3, respectively, designed as full extensions. The device 8, which is designed for the rail guide designed as partial extension according to Figure 13, is arranged or can be arranged on the movement rail 6. The driver, not visible in Figure 13, which interacts with the latch member 15, is present on the fixed rail 4.

[0123] In Fig. 16, a locking component 20 of the device 8 is not shown.

[0124] In Figs. 15 and 16, a connection housing 13 of the device 8 is not shown. List of reference symbols

[0125] 1 motion control system

[0126] 2 rail guides

[0127] 3 Rail guide

[0128] 4 fixed rail

[0129] 5 Middle rail

[0130] 6 movement rail

[0131] 7 Device

[0132] 8 Device

[0133] 9 Synchronization device

[0134] 10 connecting element

[0135] 11 Power storage

[0136] 12 Basic component

[0137] 13 connection housing

[0138] 14 sleds

[0139] 15 Jack organ

[0140] 16 drivers

[0141] 17 Laying arrangement

[0142] 18 Heart curve

[0143] 19 Locking device

[0144] 20 Locking component

[0145] 21 Gearbox contour

[0146] 22 Recording section

[0147] 23 Gear element

[0148] 24 Counter-gear contour

[0149] 25 Wall

[0150] 26 Closure organ

[0151] 27 joint

[0152] 28 rest stops

Claims

Claims 1. Device (7, 8) for the movement control of a rail guide (2, 3), which comprises a fixed rail (4) which can be connected to a furniture body and a movement rail (6) which can be coupled to a furniture part, wherein the movement rail (6) is linearly displaceable in an opening direction and in a closing direction relative to the fixed rail (4), wherein the device (7, 8) in the arranged state on the rail guide (2, 3) is designed for a force-assisted displacement of the movement rail (6) from a closed position of the movement rail (6) in the opening direction, wherein the device (7, 8) has a force accumulator (11), a base component (12) and a slide (14) which can be displaced relative to the base component (12), wherein the slide (14) is movable in the opening direction under the action of the charged force accumulator (11) and in the assembled state of the device (7, 8) on the rail guide (2, 3) takes the movement rail (6) in the opening direction,and wherein the device (7, 8) comprises a locking arrangement (17) with a heart-shaped curve (18) and a locking member (19) which can be brought into contact along the heart-shaped curve (18), so that when the energy accumulator (11) is charged in a locking position of the device (7, 8), a displacement of the slide (14) in the opening direction is blocked, characterized in that the slide (14) comprises the heart-shaped curve (18).

2. Device (7, 8) according to claim 1, characterized in that a synchronization device (9) with a connecting element (10) is provided, wherein the connecting element (10) is designed to connect the device (7, 8) with another corresponding device (7, 8), wherein the two devices (7, 8) are spaced apart from each other, wherein the two devices (7, 8) in the connected state are used for a movement control of two Rail guides (2, 3) are designed for a common furniture part, and wherein the connecting element (10) connects the two carriages (14) of the two devices (7, 8) to one another in such a way that a synchronized cancellation of the blocked position of the carriage (14) of one device (7, 8) and of a carriage (14) of the other device (7, 8) is used, wherein a linear movement of the carriage (14) and a rotational movement of the connecting element (10) about its longitudinal axis are mechanically coupled.

3. Device (7, 8) according to claim 1 or 2, characterized in that the carriage (14) comprises a gear contour (21), wherein the gear contour (21) is designed for the geared movement coupling of the linear movement of the carriage (14) and a rotational movement of the connecting element (10) about its longitudinal axis.

4. Device (7, 8) according to one of the preceding claims, characterized in that, with respect to the arranged state of the device (7, 8) on the rail guide (2, 3), the heart curve (18) is formed on an upper side of the carriage (14).

5. Device (7, 8) according to one of the preceding claims, characterized in that the heart cam (18) and the locking member (19) are coordinated with one another in such a way that the locking position of the device (7, 8) can be canceled by a movement of the slide (14) in the closing direction.

6. Device according to one of the preceding claims, characterized in that the gear contour (21) of the carriage (14) is designed as a tooth contour.

7. Device (7, 8) according to one of the preceding claims, characterized in that the gear contour (21) of the carriage (14) is adjacent to a receiving section (22) of the device (7, 8), wherein the Receiving section (22) is designed to accommodate a gear element.

8. Device (7, 8) according to one of the preceding claims, characterized in that the gear contour (21) of the carriage (14) is linearly movable in a tangential direction to a rotational axis of the connecting element (10).

9. Device (7, 8) according to one of the preceding claims, characterized in that the gear contour (21) of the carriage (14) is geared into engagement with a counter-gear contour (21) which is formed on the gear element (23).

10. Device (7, 8) according to one of the preceding claims, characterized in that the gear element (23) is designed as a separate component, wherein the gear element (23) is gear-connected to the carriage (14).

11. Device (7, 8) according to one of the preceding claims, characterized in that the gear element (23) is designed for the detachable attachment of an end portion of the connecting element (10).

12. Device (7, 8) according to one of the preceding claims, characterized in that the receiving section (22) has a wall which is present circumferentially to the axis of rotation of the gear element (23).

13. Motion control system (1) for two rail guides (2, 3) which serve for the joint movement control of a furniture part, wherein the motion control system (1) comprises two devices (7, 8) according to one of the preceding claims.

14. Rail guide (2, 3) with a fixed rail (4) connectable to a furniture body and with a movement rail (6) connectable to a furniture part, wherein a device (7, 8) according to one of claims 1 to 12 is present.

15. Furniture with a furniture body and a movable furniture part, wherein two rail guides (2, 3) according to claim 14 and a motion control system (1) according to claim 13 are provided.