Device for moving a furniture part, and piece of furniture

Abstract

The invention relates to a device (9) for moving a movable furniture part in an opening direction in relation to a furniture body of a piece of furniture, wherein the device (9) has an energy accumulator and an ejector (11), such that the movable furniture part, by means of the device (9) mounted on the piece of furniture and during an opening process of the furniture part, can be brought in the opening direction from a closed position of the furniture part under the action of the energy accumulator via the ejector (11), wherein the energy accumulator, after the opening process of the furniture part, can be charged by an electric adjustment unit of the device (9), wherein the electric adjustment unit comprises a motor and a transmission, wherein a counter element of the device (9) is movable by the electric adjustment unit by means of the transmission in the closing direction, wherein the ejector (11) is movable by the counter element in the closing direction, whereby the energy accumulator can be charged. According to the invention, the energy accumulator is charged electrically.

Description

[0001] "Device for moving a piece of furniture and furniture"

[0002] State of the art

[0003] In the furniture sector, movable furniture parts are known to be moved linearly or pivotally on associated furniture via various motion guides. In addition, devices are known that serve to move, eject, and / or retract a movable furniture part from a closed or open position on the furniture in a direction of movement, using a rechargeable energy storage device.

[0004] After, for example, an ejection or retraction action, the discharged energy storage unit must be recharged, which is coordinated with a movement pattern of the furniture part during operation and requires additional mechanics and presents a challenge, especially with regard to the space-saving accommodation of the loading and ejection or retraction components, the functional reliability of the device and / or a user-friendly application of the device.

[0005] Purpose and advantages of the invention

[0006] The object of the present invention is to provide an improved device for the power-assisted movement of a movable furniture part in a direction of movement, such as an opening direction. In particular, such a device should offer an optimized service life, reliable and minimized release forces, and be compact and simple in design. Furthermore, reliable operation with a high degree of user-friendliness is required. This object is achieved by the independent claims.

[0007] The dependent claims describe expedient and advantageous variants of the invention.

[0008] The invention relates to a device for moving a movable furniture part in an opening direction relative to a furniture body, wherein the device has a force storage unit and an ejector, so that with the device mounted on the furniture, the movable furniture part can be moved from a closed position of the furniture part into the opening direction via the ejector under the action of the force storage unit during an opening process of the furniture part, wherein the force storage unit can be charged after the opening process of the furniture part by an electric adjustment unit of the device, wherein the electric adjustment unit comprises a motor and a gearbox, wherein a counter element of the device can be moved in the closing direction by the electric adjustment unit by means of the gearbox, wherein the ejector can be moved in the closing direction by the counter element, thereby charging the force storage unit.

[0009] The core of the invention lies in the fact that the energy storage device is charged electrically. For example, the energy storage device is charged electrically. For example, the energy storage device is charged using an electric motor. This enables user-friendly operation of the device.

[0010] For example, the energy storage device can be electrically charged via a power supply unit. For example, the power supply unit is part of the device. For example, the power supply unit is designed to convert a voltage from a supplying, e.g., external, power grid into a voltage suitable for the electric motor of the energy storage device.

[0011] For example, the counter element can be moved linearly and / or pivotally. For example, the counter element of the device can be moved linearly by the electric adjustment unit via the gearbox, e.g., in the closing direction. For example, the counter element of the device can be moved pivotally by the electric adjustment unit via the gearbox, e.g., in the closing direction.

[0012] For example, the energy storage device is a spring, such as a coil spring. For example, the energy storage device comprises exactly one spring. For example, the energy storage device comprises exactly two springs. For example, the energy storage device comprises several springs, such as more than two springs. For example, the energy storage device is a tension spring. For example, the energy storage device is a compression spring.

[0013] For example, the energy storage unit is electrically charged.

[0014] In principle, it is also conceivable that the device for moving the movable furniture part acts in a closing direction or is designed as a retraction arrangement of, for example, a partially opened furniture part.

[0015] This allows for motorized recharging of the energy storage unit, resulting in a particularly user-friendly device. Energy storage units with a high available force level, for example for heavy furniture parts or furniture parts that can bear heavy loads, can also be used without the user having to exert significant manual force to recharge the depleted energy storage unit, which offers a high level of user comfort, especially for elderly people.

[0016] For example, the electric adjustment unit has a control unit, hereinafter also referred to as the controller, which is integrated, for example, into the adjustment unit, such as in a motor unit with a motor, such as an electric motor of the adjustment unit. The controller is, for example, part of a higher-level control unit for operating the electric adjustment unit. For example, a programmable control program is stored in the control unit and a programmable control program is stored in the control unit.

[0017] For example, the device of the present invention is designed as a furniture part moving device for moving a furniture part, for example for moving or opening or closing a drawer or a furniture flap or a furniture door.

[0018] For example, the ejector and the counter element are two separate components that, for example, interact temporarily.

[0019] For example, the energy storage device, e.g. a tension spring, engages on the one hand at the ejector and on the other hand at a fixed position on the device, e.g. on a housing of the device.

[0020] For example, the counter element has an elongated recess, in which a part of the ejector is always received. For example, the ejector and the counter element are movable relative to each other, for example telescopically, advantageously with mutual movement-guiding function.

[0021] A counter element with a recess is an easily provided component. For example, a counter element with a recess is a space-saving component. For example, the counter element with the recess fulfills a guiding function for the movement of the ejector part and thus for the ejector during its movement. For example, it is advantageous that the length of the recess can be adapted to the length of a movement path of the ejector.

[0022] For example, this means that a part of the ejector is permanently received in the recess. For example, this means that a part of the ejector is received in the recess in all possible positions of the ejector. For example, this means that during normal operation of the device, there are no states in which the relevant part of the ejector is not received in the recess. The relevant part of the ejector is, for example, an additional section to a contact section of the ejector that comes into contact with the furniture part during ejection. The relevant part of the ejector is, for example, an extension that connects to the contact section and extends in a longitudinal direction along the ejector.

[0023] For example, the movable furniture part could be a drawer. It is also conceivable that the movable furniture part could be a cabinet door or a cabinet flap. If the movable furniture part is a cabinet door or cabinet flap, the mechanism is, for example, attached to a hinge or fitting, thus enabling the cabinet door or cabinet flap to pivot or rotate around a pivot axis relative to the cabinet body.

[0024] The device is designed as a guide for the furniture component, e.g., as a separate and / or individual unit. This allows the device to be optionally attached to a hinge, or it can be integrated as an add-on unit to a swivel or linear guide, such as a rail guide. Furthermore, it is also conceivable that the device is located as a component on the furniture carcass, a carcass side panel or back panel, and / or on a carcass rail of the guide device near the movable furniture component, relative to a closed position on the furniture. For example, the device is located near a drawer bottom and / or a drawer side panel on the furniture, for example, relative to a position where the drawer is fully or partially retracted into a receiving space of the furniture carcass.For example, the device is located adjacent to and spaced apart by a gap area from the underside of a drawer bottom.

[0025] For example, when the movable furniture part moves in the opening direction, the ejector is in contact or direct contact with a section of the movable furniture part, for example, an outside of a drawer back panel.

[0026] For example, the energy storage unit is recharged directly or immediately, e.g., instantly or within a period of a few seconds, e.g., within a period of 0 to 4 seconds after the energy storage unit has been discharged, via the electric adjustment unit.

[0027] Direct charging of the energy storage after the opening movement is advantageous because, immediately after opening the furniture part to a partially or fully open position, a user can close the movable furniture part without additional force, which would otherwise be required to charge the energy storage.

[0028] For example, the energy storage device has exactly one, exactly two, exactly three, or exactly four energy units. For example, the energy storage device has exactly two energy units, such as a tension and / or compression spring. The two or more spring units are, for example, identical, such as coil springs.

[0029] For example, the motor is an electric motor.

[0030] For example, the recess in the mating element can be slot-like, cleft-like, groove-like, or slot-like. An elongated sleeve shape is also conceivable, for example, a hollow cylindrical shape. For example, the outer shape of the relevant part of the ejector is adapted to the inner shape of the recess, e.g., for optimized mutual guidance. For example, the recess can be designed as a sliding bearing arrangement for the sliding support of the part of the ejector guided within the recess. For example, the recess provides opposing walls separated by a material-free area, along which the relevant section of the ejector is guided linearly. The sliding bearing arrangement prevents the ejector from tilting.

[0031] For example, the ejector is in two parts. For example, the two-part ejector acts as a safety coupling, since only one of the two coupled parts is connected to the motor at any given time. For example, the two parts can be disengaged from each other under load, e.g., in case of overload.

[0032] For example, the mating element is designed as a slide-like component. For example, the recess is a material-free, elongated opening in the mating element, for example, extending over the entire length of the mating element.

[0033] For example, the device is designed as a detachably attachable device on a section of the furniture body and / or the furniture part and / or a movement rail of a guide device.

[0034] For example, the longitudinal extension of the recess in the opposing element runs parallel to the opening and closing direction of the movable furniture part. For example, part of the ejector is accommodated within the recess. For example, the ejector is held securely within the recess.

[0035] For example, the ejector is connected to the counter element via a connecting section that extends through the recess. For example, the ejector is movable relative to the stationary counter element during the opening movement of the furniture part. For example, during the charging process of the energy storage unit, the ejector and the counter element are movable together with the adjustment unit.

[0036] For example, the ejector is guided linearly in the opening direction along the recess.

[0037] For example, during the charging process of the energy storage device, the moving counter element is guided linearly along guide sections of remaining sections of the device, for example, guide sections of a housing of the device.

[0038] For example, the ejector is positioned with the contact section of the ejector, such as a contact surface, which comes into contact with the furniture part when the furniture part is ejected, e.g., in the area of ​​an opening above the top of the housing of the device. The counter element is essentially housed above and protected from the outside by a housing part and, for example, against contamination.

[0039] In addition to a gear transmission, other types of transmissions are also conceivable, e.g. a belt transmission and / or a worm gear transmission.

[0040] For example, a sensor unit, such as a sensor device, is present that detects a parameter of the device and provides a corresponding sensor signal to a controller and / or a higher-level control unit of the device for operating the electrical adjustment unit. For example, the parameter comprises an operating and / or state parameter of the device, whereby a corresponding sensor signal is provided to the controller and / or the higher-level control unit of the device for operating the electrical adjustment unit. Detectable parameters include, for example, position and / or motion parameters such as velocity or direction of movement.

[0041] A detectable parameter includes, for example, position data of the ejector and / or the counter element. For example, in relation to the device being mounted on a piece of furniture, a detectable parameter is, for instance, the position of the ejector in its maximum achievable position on the device in the closing direction of the furniture part. For example, during or at the end of a charging process of the energy storage system, the counter element, driven by the motor in the closing direction, pushes the ejector in the closing direction, so that the ejector and counter element move together in the closing direction. As soon as the ejector is locked or held in its maximum retracted position, the control unit reverses the direction of rotation of the running motor upon detection of this maximum retracted position, for example, by a sensor for reversing the direction of rotation or a motor direction reversal sensor.The counter-element is then moved in the opening direction by the motor until another sensor, e.g., a motor stop sensor, detects the counter-element reaching its maximum position in the opening direction, at which point the motor is switched off via the control system. The energy storage device is charged and locked. The counter-element is moved in the closing direction and away from the ejector. The path of movement for the ejector in the opening direction, between the retracted ejector and the extended counter-element, is now clear.

[0042] After the device is triggered externally, e.g., via a touch-latch function, the ejector moves in the opening direction beneath the discharging energy storage device, with the relevant part within the recess of the counter element, and either picks up or ejects the furniture part. When the ejector, or a contact surface of the ejector, strikes, for example, a rear end of the counter element, another sensor, e.g., a motor start sensor, detects the corresponding position of the ejector. This triggers the activation or starting of the previously deactivated motor in a predetermined direction of rotation corresponding to the closing direction of the counter element. The counter element is then driven in the closing direction and pushes the ejector back into its end position. During this process, the energy storage device, which is both positionally fixed and acts on the ejector, is charged.For example, the energy storage device is a tension spring that is charged by elongation.

[0043] At the end of the loading process, the ejector is locked again and in its maximum closing position. The motor's rotation direction reversal sensor, activated at this point, moves the counter-element back into the opening direction.

[0044] For example, the sensor unit comprises several different and / or several similar sensor elements.

[0045] For example, the sensor unit includes a sensor element that detects the position of the counter element along the possible path of movement of the counter element and provides a corresponding sensor signal to the control of the electric adjustment unit.

[0046] For example, the sensor unit includes a sensor element that detects the position of the ejector along the possible path of movement of the ejector and provides a corresponding sensor signal to the control of the electric adjustment unit.

[0047] For example, the sensor unit includes a sensor element that causes a change in the direction of rotation of the motor or electric motor and / or a switching on and / or a switching off of the motor.

[0048] For example, the mating element comprises a rack. For example, the rack has an engagement contour. For example, the engagement contour is designed for meshing contact with a tooth contour, such as a gear contour, that is shaped to match the engagement contour.

[0049] For example, the rack has a recess on the underside and / or the top side.

[0050] A rack with a tooth profile is a mechanically robust component that can be arranged in a space-saving manner. For example, the mating element is a component with an integral tooth profile of the rack, formed on one of its outer surfaces. For example, the mating element is a rack or a rack component.

[0051] A rack enables a uniform, e.g., slip-free, geared transmission of motion to the counter element from the outside, for example by means of a driven mating tooth section that matches the rack and meshes with the tooth contour of the rack.

[0052] For example, the mating element has an engagement contour. For example, the engagement contour includes a tooth contour, e.g., a linear tooth contour. For example, the engagement contour is a tooth contour formed by the rack. For example, the mating element has an engagement contour on exactly one longitudinal side. For example, the mating element has an engagement contour on exactly two opposite longitudinal sides. For example, the tooth contour is formed over the entire length of a first longitudinal side of the rack or over the entire length of both longitudinal sides of the rack.

[0053] For example, the counterpart element with its two engagement contours is symmetrically designed. This allows the same component, or counterpart element, to be used in a variety of ways. For example, the symmetrical counterpart element is suitable for optional attachment to a left-hand or right-hand guide unit for the furniture component, such as for attachment to a left-hand guide and / or a right-hand guide for a drawer.

[0054] For example, the counter element, e.g. as an alternative to the rack, is a rope pull or a belt, or a winch or a lever or a pivot lever or a friction wheel.

[0055] For example, the ejector is connected to the energy storage system. For example, the ejector is indirectly connected to the energy storage system.

[0056] For example, one end or end section of the energy storage unit is connected to or attached to the ejector.

[0057] For example, the other end of the energy storage device, which does not engage the ejector, is held in a fixed position, e.g. on a housing or on a base plate of the device.

[0058] For example, the transmission includes a gear element with a gear contour, wherein the gear contour of the gear element interacts with an engagement contour of the mating element.

[0059] For example, this makes it possible to implement a rack and pinion drive for the linear reciprocating movement of the counter-element. A rotary movement of the gear element, provided by the motor or electric motor and with a fixed axis of rotation, can be used for a linear movement of the counter-element.

[0060] Simultaneously, depending on the design of the gearbox, for example, depending on the diameter or circumference of the tooth profile of one or more gear elements, a speed ratio or speed reduction can be set to the last gear element meshing with the mating element, corresponding to the speed of the electric motor. For example, the gearbox may include a pinion or an external gear and / or an internal gear. The gearbox may also include, for example, a double gear with different diameters for the two gear profiles.

[0061] Gear elements such as pinions are advantageously standard components that are available in various materials and designs.

[0062] For example, the gear contour of the gear element meshes with the engagement contour of the mating element or the rack.

[0063] For example, the gear contour of the gear element of the transmission meshes with another gear element of the transmission.

[0064] For example, the transmission has several gear elements, e.g., exactly two gear elements, or exactly three gear elements, or exactly four gear elements, or exactly five gear elements. Several single gear elements and / or several double or twin gear elements are provided.

[0065] For example, the transmission may include, as an alternative to the gear element, a rope pull, a belt, a winch, a lever, a pivot lever, or a friction wheel. For example, the aforementioned alternative form of the transmission interacts with a corresponding engagement contour of the counter element.

[0066] For example, a control unit for the electric adjustment unit is present and is coordinated with a sensor unit of the device such that an end position of the ejector in a first direction of movement is detectable, whereby the control unit triggers the start of the electric adjustment unit. For example, the end position of the ejector is a

[0067] Opening position of the ejector, for example, the maximum achievable position of the ejector in the opening direction. For example, the direction of movement corresponds to the opening direction and / or the closing direction of the movable furniture part in relation to the device mounted on the furniture.

[0068] The switching on or starting and / or switching off or stopping of the electric adjustment unit is triggered, for example, by the control unit.

[0069] For example, the ejector reaching its opening position is detected by a first sensor element of the sensor unit and / or by a first detection unit of the sensor unit. For example, the first detection unit is a switch or a sensor. For example, starting the motor moves the counter element, and thus the ejector pushed by the counter element, in the closing direction.

[0070] For example, the movement of the ejector in the closing direction means that the end of the energy storage device connected to the counter element is moved away from the other fixed end of the energy storage device, thus lengthening the energy storage device, in the case of an elastic coil spring as the energy storage device. This charges the energy storage device.

[0071] For example, a control unit for the electric adjustment unit is present and is coordinated with a sensor unit of the device in such a way that reaching a closed position of the ejector is detectable and the control unit causes a change in the direction of rotation of a motor of the electric adjustment unit.

[0072] For example, the sensor unit detects when the ejector reaches the closed position. For example, a sensor, such as a position sensor, can detect when the ejector reaches its maximum achievable closing position in the closing direction. For example, the position sensor might include a motor direction-of-rotation sensor, whose sensor signal triggers a change in the direction of rotation when the motor is running. For example, the sensor unit, which might be designed as a detection unit, could include a switch or a sensor.

[0073] For example, the closing position of the ejector is the end position of the ejector's movement in the closing direction of the furniture part. When the ejector reaches the closing position, for example, the end position of its movement in the closing direction, the control system reverses the motor's direction of rotation.

[0074] The lockable end position or the closing position of the ejector, which also secures the charged energy storage device, is reached by the ejector being driven in the closing direction by the movement of the counter element caused by the gearbox.

[0075] For example, once the ejector reaches its end or closed position, the counter element is moved back to its starting position by a change in the motor's direction of rotation triggered by the control system. The ejector remains in the end or closed position.

[0076] For example, a control unit for the electric adjustment unit is present and is coordinated with a sensor unit of the device in such a way that the reaching of a starting position of the counter element is detectable, whereby the control unit triggers the switching off of a motor of the electric adjustment unit. Depending on the control program stored in the control unit, it is also possible to switch the motor on with the control unit.

[0077] Alternatively or additionally, the control system triggers the switching on of the motor when the counter element reaches its starting position or when the counter element reaches another position.

[0078] For example, the reaching of the starting position of the counter element is detectable by the sensor unit, such as a detection unit of the sensor unit.

[0079] For example, a starting position is a first end position and / or a second end position of a possible movement path of the counter element, for example, a linear movement path of a back-and-forth movement of the counter element between the end positions. Any other position of the counter element between the end positions can also be detected by the sensor unit and used to switch the motor, e.g., predefined via the controller.

[0080] For example, the reaching of the starting position of the counter element is detected by a third detection unit. For example, the third detection unit comprises a sensor element such as a switch or a sensor as in a position sensor.

[0081] For example, the counter element can be moved to its starting position by the gearbox, whereby the motor of the electric adjustment unit switches off when the counter element reaches its starting position. For example, the third detection unit is arranged such that the positions detectable by the third detection unit do not include any position that the ejector reaches or can reach. For example, the third detection unit cannot detect any possible position of the ejector or any position that the ejector can reach.

[0082] For example, the transmission has two transmission parts whose main surfaces extend in different spatial directions.

[0083] For example, the longitudinal extents of the two gear components are arranged orthogonally to each other. For example, a first spatial direction is vertically oriented. For example, a second spatial direction is horizontally oriented. For example, a main surface of a first gear component is defined by a surface of a housing component of the first gear component. For example, a main surface of a second gear component is defined by a surface of a housing component of the second gear component.

[0084] For example, an orthogonal to the surface side of the housing part of the first gear part is horizontally aligned in the operating state of the device.

[0085] For example, an orthogonal to the surface side of the housing part of the second gear part is vertically aligned in the operating state of the device.

[0086] For example, the housing of the first transmission part comprises two opposing flat housing parts, which form the main surfaces of the housing, and is at least approximately box-shaped, cuboid, or plate-shaped. For example, the housing of the second transmission part comprises two opposing flat housing parts, which form the main surfaces of the housing, and is box-shaped, cuboid, or plate-shaped.

[0087] For example, a first gear component and / or a second gear component can be arranged on the furniture body and / or on a body rail of a guide device for guiding the movement of the movable furniture component. For example, the first gear component is fixed in position on the furniture when the device is attached.

[0088] For example, the device, e.g., as a whole, is designed as a component that is attached to the furniture body and / or to a body rail of a guide device designed as a rail guide for guiding the movement of the movable

[0089] The movable part of the furniture can be arranged. For example, in the piece of furniture on which the device can be used and attached, the movable part of the furniture is designed as a drawer.

[0090] For example, the first gear component can be arranged such that one surface of the housing part of the first gear component is aligned parallel to a surface or back of the drawer back panel. For example, with the drawer closed on the furniture, a front surface of the housing part of the first gear component is spaced between two and ten millimeters away from the surface or back of the drawer back panel.

[0091] For example, the back of the drawer back panel is aligned with a back panel of the furniture carcass.

[0092] For example, the first gear component is located on the back panel of a furniture carcass. For example, the first gear component is located at a point on the back panel of the furniture carcass that is behind the drawer back panel, e.g., in an area of ​​the back panel of the furniture carcass that is offset from the drawer back panel in the closing direction.

[0093] If the movable furniture part is designed as a furniture door or furniture flap, the first gear part is preferably arranged on the furniture body.

[0094] If the movable furniture part is designed as a drawer, the second gear part is, for example, positioned or positionable on a drawer bottom, in particular on an underside of the drawer bottom.

[0095] If the movable furniture part is designed as a drawer, the second gear part can be arranged, for example, so that one surface of the housing part of the second gear part is aligned parallel to a surface or underside of a drawer bottom. For example, with the drawer closed, an upper surface of the housing part of the second gear part is spaced between one and ten millimeters away from the surface or underside of the drawer bottom.

[0096] It is also conceivable that the second gear component is positioned below or at a distance of 2 to 10 millimeters from the underside of the drawer bottom. For example, the second gear component can be mounted on the cabinet rail.

[0097] If the movable furniture part is designed as a furniture door or furniture flap, the second gear part is preferably arranged or can be arranged on the furniture body.

[0098] For example, the first gear unit features a planetary gear system.

[0099] A planetary gearbox is compact and functionally very reliable. For example, a planetary gearbox enables high torque transmission in a comparatively small installation space.

[0100] For example, the first gear unit has a motor. For example, the motor and the first gear unit form a single component. For example, the motor and the first gear unit are housed in a common casing. For example, the motor of the first gear unit is the motor of the electric adjustment unit for moving the counter element in the closing direction and / or in the opening direction. For example, the device has exactly one motor, or a single motor.

[0101] Alternatively, for example, if the first transmission part has no motor or is an additional motor to the motor in the transmission, the device has a motor that is not part of the transmission. For example, the motor drives either the first transmission part or the second transmission part. For example, an output side of the motor drives a drive element of the first transmission part or a drive element of the second transmission part.

[0102] For example, the motor drives a sun gear of the planetary gear set in the first part of the transmission. The planetary gear set is, for example, designed as a two-stage planetary gear set.

[0103] For example, the first gear part has a gear element, whereby a rotary motion of the planetary gear is transferred to the gear element.

[0104] For example, the second transmission part includes at least one gear element.

[0105] For example, the second gear element comprises exactly one gear element, or exactly two gear elements, or exactly three gear elements, or exactly four gear elements. The multiple gear elements are, for example, horizontally and / or vertically spaced or offset from each other.

[0106] A gear can be, for example, a single gear, a double gear, an external gear, or an internal gear. For instance, the axis of rotation of a gear can be fixed in position, or the axis of rotation of a gear can move in a meshing gear interaction between a tooth contour of the gear and a mating tooth contour.

[0107] For example, the second gear part comprises two gear elements that differ in circumference or diameter. For example, one gear element is designed as a single gear or as a double gear. For example, one gear element is designed as an external gear and / or as an internal gear.

[0108] For example, the second transmission part includes a gear element which is designed as a double gear.

[0109] For example, exactly one gear of the second gear part is designed as a double gear, or exactly two or exactly three gear elements of the second gear part are designed as double gears.

[0110] For example, the second gear section comprises exactly three double gears and exactly one single gear. The double gears have, for example, one larger diameter of an outer tooth contour and one smaller diameter of an outer tooth contour. For example, in each of the three double gears, the larger diameter of an outer tooth contour is approximately twice the size of the smaller diameter of an outer tooth contour.

[0111] For example, the outer diameter of a single gear is within the range of a smaller diameter of the respective double gears. For example, with a comparatively smaller gear or smaller diameter of the gear contour, a greater force can be achieved at the circumference with the same torque, meaning that the transmissible force on the mating element or the rack is comparatively greater than with a larger gear.

[0112] The diameters of the respective larger outer tooth contours of the three double gears are equal or nearly equal. The diameters of the respective smaller outer tooth contours of the three double gears are equal or nearly equal. The exact one single gear has an outer tooth contour diameter that is equal to or nearly equal to the respective outer tooth contour diameter of the respective smaller outer tooth contour of the three double gears. For example, a first gear element of the second gear section meshes with the planetary gear set or with a gear element of the first gear section. For example, the first gear element of the second gear section meshes with a second gear element of the second gear section. For example, the second gear element of the second gear section meshes with a third gear element of the second gear section.

[0113] For example, the first, second, and third gear elements of the second gear part are designed as double gears. For example, the third gear element of the second gear part meshes with a fourth gear element of the second gear part, wherein, for example, the fourth gear element of the second gear part meshes with the engagement contour of the mating element.

[0114] For example, the device includes a locking arrangement that holds the charged energy storage device in place.

[0115] For example, the locking arrangement comprises a cam and a locking element. For example, a locking rod coupled to an ejector is moved within the cam. For example, a locking element is arranged within the cam, which holds the locking rod in a locked position. For example, the locked position corresponds to the closed position of the ejector.

[0116] For example, the locking element is coupled with a synchronization rod, so that with two devices on a movable piece of furniture, the opening movement of the movable piece of furniture can be simultaneous and uniform.

[0117] For example, the locking mechanism is equipped with a touch-

[0118] The latch function is coupled to a touch-latch arrangement. For example, a charged energy storage device held in place by the locking mechanism can be released by a person acting on the furniture part from the outside, e.g., by pressing the closed furniture part a few millimeters in the closing direction. This subsequently releases the lock or the charged energy storage device, whereby the locking element is moved out of the locked position. Then, without any further external action, the movable furniture part is ejected in the opening direction as the energy storage device discharges.

[0119] The invention extends, for example, to a piece of furniture comprising a furniture body and a movable furniture part, wherein the movable furniture part can be moved in an opening direction and in a closing direction opposite to the opening direction relative to the furniture body, wherein a device according to one of the embodiments of the device described above is provided.

[0120] For example, the furniture has a drawer or furniture drawer, a furniture flap and / or a furniture door as a movable furniture part.

[0121] For example, the movable furniture component can be moved or movably mounted on the furniture carcass in the opening and closing directions via a guide device, such as a furniture component guide device, for example, linearly and / or pivotally mounted. The guide device is designed, for example, as a rail guide, e.g., as a full or partial rail extension. For example, the guide device is designed as a drawer element guide and / or as a door hinge pivot guide and / or as a flap fitting.

[0122] For example, exactly two identical units of a guide device are used to guide a furniture part on both sides of the furniture carcass, such as a drawer. Figure description

[0123] Further features and advantages of the invention are explained in more detail with reference to exemplary embodiments schematically depicted in the figures. Specifically, the figures show:

[0124] Figure 1 shows a piece of furniture with a fully opened drawer relative to a furniture body, viewed from a slightly oblique perspective above, with a device for moving the drawer.

[0125] Figure 2 shows a device in a perspective view obliquely from above in a first state,

[0126] Figure 3 shows the device according to Fig. 2 in a front view.

[0127] Figure 4 shows the device according to Fig. 2 in a side view.

[0128] Figure 5 shows the device according to Fig. 2 in a top view.

[0129] Figure 6 shows the arrangement according to Fig. 5 without a housing part.

[0130] Figure 7 shows the device in a perspective view in a second state,

[0131] Figure 8 shows the device according to Fig. 7 in a top view without a housing part.

[0132] Figure 9 shows an alternative device in a top view without a housing part.

[0133] Figure 10 shows another device in a top view without a housing part and

[0134] Figure 11 shows the device according to Figure 10, partially interrupted, with a housing part. The same reference numerals are used below for corresponding elements of different embodiments.

[0135] Figure 1 shows a piece of furniture 1 with a box-shaped furniture body 2 and a furniture part 4 that can be moved via guide devices 3, which in Fig. 1 is designed as a drawer.

[0136] The drawer comprises a drawer base 5, a drawer front 6, two opposing side panels 7, and a drawer back panel 8. For the linear movement of the drawer, two synchronized guide devices 3 are provided between each side panel 7 of the drawer and a corresponding cabinet side panel. The drawer is mounted on the cabinet 2 via two guide devices 3, for example, two identical partial or full extension slides.

[0137] The opening direction Ml of the furniture part 4 and the closing direction M2 of the furniture part 4 are slidably mounted relative to the furniture body 2.

[0138] Furthermore, a device 9 for moving the furniture part 4 is mounted on the furniture 1 in the area of ​​a left side wall of the carcass when viewed from the front.

[0139] Fig. 2 shows a device 9 corresponding to the device 9 in Fig. 1, which, however, can be mounted on the furniture 1 viewed from the front in the area of ​​a right-hand interior of the furniture body.

[0140] The device 9 for moving the movable furniture part 4 into an opening direction Ml has a force storage device 10 and an ejector 11 (see Fig. 6).

[0141] With the device 9 mounted, during an opening process, the furniture part 4 is moved from a closed position on the furniture 1, under the action of the energy storage unit 10, via the ejector 11 into the opening direction M1. After the opening process of the furniture part 4, the energy storage unit 10 can be recharged by an electric adjustment unit 12 of the device 9. The electric adjustment unit 12 comprises a motor 13 and a gearbox 14. A counter element 15 of the device 9 is movable linearly in the opening direction M1 and in the closing direction M2 by the electric adjustment unit 12 via the gearbox 14. The ejector 11, offset in the direction M2, is also movable in the closing direction M2 by the counter element 15, which is driven in the closing direction M2, e.g. sliding movable, allowing the power storage unit to be charged to 10 units.

[0142] The counter element 15 has an elongated recess 16, in which a part of the ejector 11 is always received. The recess 16 is, for example, not visible from above or, for example, open on the underside of the counter element 15.

[0143] The counter element 15 comprises a rack 17. One end of the energy storage unit 10 is attached to the ejector 11. The transmission 14 has a gear element 30 with an external, fully enclosed gear contour, wherein the gear contour interacts with an engagement contour such as a matching tooth contour of the counter element 15.

[0144] The electric adjustment unit 12 includes a control unit 18. The electric adjustment unit 12 is matched to a sensor unit 19 of the device, so that, for example, an end position of the ejector 11 in a first direction of movement can be detected, for example, an end position in an opening direction M1 and / or in a closing direction M2.

[0145] The sensor unit 19 also detects at least one end position of the counter element 15 in the opening direction M2 or possibly other and / or further positions of the counter element 15. When an end position of the ejector 11 in a first direction of movement M1 is detected by the sensor unit 19, which supplies a corresponding sensor signal to the control unit 18, the electric adjustment unit 12 is started via the control unit 18.

[0146] For example, the control 18 of the electric adjustment unit 12 is matched to a sensor unit 19 of the device 9 in such a way that reaching the end position, such as a closing position of the ejector 11 in the closing direction M2, is recognizable.

[0147] For example, when a closed position of the ejector 11 is detected (see Fig. 2-6), the direction of rotation of the motor 13 of the electrical adjustment unit 12 is changed.

[0148] For example, the transmission 14 has two transmission parts 20 and 21 (see Fig. 2). A main surface 22 of a first transmission part 20 is orthogonal to a main surface 23 of a second transmission part 21. For example, the main surface 22 is a surface side of a housing part of the first transmission part 20 and the main surface 23 is a surface side of a housing part of the second transmission part 21.

[0149] For example, the first gear part 20 has a planetary gear 26 .

[0150] For example, the second gear part 21 comprises four gear elements with three double gears 27, 28, 29 and one gear element 30 designed as a single gear. The gear element 30 meshes with a counter contour 40 designed as a tooth contour on the counter element 15 or on the rack 17 (see Fig. 10).

[0151] For example, the device 9 with the first gear part 20 can be arranged on the furniture body 2 via a first connection 24 (see Fig. 7). For example, the device 9 with the second gear part 21 can be arranged on a body rail of the guide device 3 for guiding the movement of the movable furniture part 4 via a second connection 25.

[0152] For example, the device 9 comprises a locking arrangement 31 which holds the charged energy storage device 10. For example, the locking arrangement 31 comprises a heart-shaped curve and a locking element that is movable along the heart-shaped curve and can be releasably locked.

[0153] To adjust the strength of the preload of the force storage unit 10, e.g. comprising two parallel, e.g. identical, tension springs 38, 39, a manually operable adjusting device 32 is provided.

[0154] The sensor unit 19 of the device 9 comprises, for example, an engine stop sensor 33 and / or an engine start sensor 34 and / or an engine direction change sensor 35 (see Fig. 9, Fig. 10).

[0155] On the side of the first gear part 20 opposite connection 24, a connection section 36 projects from the associated housing. The connection section 36 serves to attach one end of a synchronization shaft 37 for synchronizing a release movement of a touch-latch release of the locking assembly 31 with a touch-latch release of another device 9 for moving the same furniture part 4. Reference list

[0156] 21 Gearbox part

[0157] 1 piece of furniture, 22 main area

[0158] 2 Furniture carcass 23 Main surface

[0159] 3 Guide device 24 Connection

[0160] 4 Furniture part 25 Connection

[0161] 5 drawer bottoms, 26 planetary gears

[0162] 6 drawer front 27 double gear

[0163] 7 side wall 28 double gear

[0164] 8 drawer back panel 29 double gear

[0165] 9 Device 30 Gear element

[0166] 10 Energy storage units 31 Locking arrangement

[0167] 11 Ejectors 32 Actuating device

[0168] 12 Adjustment unit 33 Motor stop sensor

[0169] 13 Engine 34 Engine start sensor

[0170] 14 Gearbox 35 Motor direction of rotation

[0171] 15 Counter element sensor

[0172] 16 Recess 36 Connection section

[0173] 17 Rack 37 Synchronization shaft

[0174] 18 Control 38 Tension spring

[0175] 19 Sensor unit 39 Tension spring

[0176] 20 Gearbox part 40 Counter contour

Claims

Claims 1. Device (9) for moving a movable furniture part (4) in an opening direction with respect to a furniture body (2) of a piece of furniture (1), wherein the device (9) has a force storage unit (10) and an ejector (11), such that, with the device (9) mounted on the piece of furniture (1), the movable furniture part (4) can be moved from a closed position of the furniture part (4) into the opening direction via the ejector (11) during an opening process of the furniture part (4) under the action of the force storage unit (10), wherein the force storage unit (10) can be charged after the opening process of the furniture part (4) by an electric adjustment unit (12) of the device (9), wherein the electric adjustment unit (12) comprises a motor (13) and a gearbox (14), wherein a counter element (15) of the device (9) is moved by the electric The adjusting unit (12) can be moved in the closing direction by means of the gear (14), wherein the ejector (11) can be moved in the closing direction by means of the counter element (15),wherein the energy storage device (10) can be charged, characterized in that the energy storage device (10) is charged electrically.

2. Device (9) according to claim 1, characterized in that the counter element (15) has an elongated recess (16) wherein a part of the ejector (11) is always received in the recess (16).

3. Device (9) according to claim 1 or 2, characterized in that a sensor unit (19) is provided which detects a parameter of the device (9) and provides an associated sensor signal to a controller (18) and / or a higher-level control unit of the device (9) for the operation of the electrical adjustment unit (12).

4. Device (9) according to one of the preceding claims, characterized in that the counter element (15) comprises a rack (17).

5. Device (9) according to one of the preceding claims, characterized in that the ejector (11) is connected to the energy storage device (10).

6. Device (9) according to one of the preceding claims, characterized in that the transmission (14) comprises a gear element (30) with gear contour, wherein the gear contour of the gear element (30) interacts with an engagement contour of the counter element (15).

7. Device (9) according to one of the preceding claims, characterized in that a control (18) of the electrical adjustment unit (12) is provided and is coordinated to a sensor unit (19) of the device (9) such that an end position of the ejector (11) in a first direction of movement is detectable, wherein the control (18) triggers a starting of the electrical adjustment unit (12).

8. Device (9) according to one of the preceding claims, characterized in that a control (18) of the electrical adjustment unit (12) is provided and is coordinated to a sensor unit (19) of the device (9) in such a way that reaching a closed position of the ejector (11) is detectable and the control (18) causes a change in the direction of rotation of a motor (13) of the electrical adjustment device (12).

9. Device (9) according to one of the preceding claims, characterized in that a control unit (18) of the electrical adjustment unit (12) is provided and is coordinated to a sensor unit (19) of the device (9) in such a way that reaching a starting position of the counter element (15) is detectable, wherein the control unit (18) switches off triggers a motor (13) of the electric adjustment unit (12).

10. Device (9) according to one of the preceding claims, characterized in that the transmission (14) has two transmission parts (20, 21) whose main surfaces (22, 23) extend in different spatial directions.

11. Device (9) according to one of the preceding claims, characterized in that a first gear part (20) and / or a second gear part (21) can be arranged on the furniture body (2) and / or on a body rail of a guide device (3) for guiding the movement of the movable furniture part (4).

12. Device (9) according to one of the preceding claims, characterized in that the first transmission part (20) comprises a planetary gear (26).

13. Device (9) according to one of the preceding claims, characterized in that the second transmission part (21) comprises at least one gear element (27-30).

14. Device (9) according to one of the preceding claims, characterized in that the second transmission part (21) comprises a gear element (27-29) which is designed as a double gear.

15. Device (9) according to one of the preceding claims, characterized in that the device (9) comprises a locking arrangement (31) which holds the charged energy storage device (10).

16. Furniture (1) with a furniture body (2) and a movable furniture part (4) , wherein the movable furniture part (4) can be opened in one direction and in one direction opposite the opening direction is able to be brought in the opposite direction of closing relative to the furniture body (2), wherein a device (9) according to one of the preceding claims is provided.

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