DE102024114526A1 - Device for moving a movable part of furniture - Google Patents

Abstract

A device for moving a movable furniture part in an opening direction relative to the furniture body is proposed. The device comprises a power storage device and an ejector, such that, with the device mounted on the furniture, the movable furniture part can be moved from a closed position into the opening direction by the power storage device via the ejector during an opening process. According to the invention, the power storage device can be recharged after the opening process by an electric adjustment unit, which comprises a motor, a gearbox, and a clutch. A counter element on the power storage device can be moved linearly in the closing direction by the electric adjustment unit via the gearbox. The ejector is connected to the counter element, and the clutch has a coupled and decoupled state, coupling in the closing direction.

Description

State of the art

Devices for moving a movable part of furniture are already known, wherein a power storage device is electrically charged after the movable part of furniture has been ejected.

In known devices, the energy storage device is charged by means of a motor and a gearbox after the movable part of the furniture has been opened.

Purpose and advantages of the invention

The object of the invention is to provide an improved device for moving a movable furniture part relative to a furniture body, particularly with regard to ease of use.

The problem is solved by the characteristics of independent claims.

Advantageous and appropriate embodiments, variants and further developments of the invention are set out in the dependent claims.

The invention relates to a device for moving a movable furniture part in an opening direction in relation to a furniture body, wherein the device has a power storage device and an ejector, so that with the device mounted on the furniture the movable furniture part can be brought from a closed position into the opening direction under the action of the power storage device via the ejector during an opening process.

A movable furniture component can be designed, for example, as a drawer. The movable furniture component can also be designed as a cabinet flap. Furthermore, it is conceivable that the movable furniture component could be designed as a cabinet door. For example, the device can be mounted on a guide rail. The guide rails can be designed as full or partial extensions. The guide rails include, for example, a drawer slide and a cabinet rail. It is also conceivable that the guide rails additionally have a center rail. For example, the device can be attached to the cabinet rail. It is also conceivable that the guide rails include a hinge or a lever mechanism; for example, the guide rails form a flap fitting or door fitting.

The device can be positioned, for example, on the furniture carcass. For instance, it can be positioned on the furniture carcass near the movable part. Alternatively, the device can be mounted on the movable part itself, such as a drawer, particularly on the drawer bottom or underside. The device can also be retrofitted to the guides, the furniture carcass, and/or the movable part.

The movable part of the furniture is moved outwards in the opening direction relative to the furniture body under the force storage effect of the device arranged on the furniture over at least a partial distance of an opening path of the movable part of the furniture body provided by the guide means.

The ejector is, for example, temporarily in contact with the movable furniture part. During the opening movement, the movable furniture part is moved in the opening direction by the ejector.

For example, the device for triggering the opening movement of the ejector features a so-called touch-latch function or a touch-latch arrangement. With an integrated touch-latch function, the movable furniture part, which is closed to the furniture body and usually held in the closed position, is moved, for example, by a movement of the movable furniture part in the closing direction over a relatively short distance, thus triggering the mechanism. This triggering process is, for example, a prerequisite for the opening movement of the movable furniture part, which is assisted by the energy storage device. Advantageously, the user moves the movable furniture part to trigger the mechanism from the outside, for example, by pressing against the front of the movable furniture part.

For example, in the closed position of the movable furniture part, a front element of the movable furniture part, e.g., a drawer front, is positioned away from a front side of the furniture carcass. For example, in the closed position, a gap is formed between the front element of the movable furniture part and the front side of the furniture carcass, which forms a natural stop for the movable furniture part.

Preferably, the closing direction of the ejector, when the device is installed on the furniture, is parallel and aligned with the closing direction of the movable furniture part. Preferably, the opening direction of the ejector, when the device is installed, is also parallel and aligned with the closing direction of the movable furniture part. The direction of movement on the furniture is parallel and aligned with the opening direction of the movable furniture part. For example, the opening and closing directions of the ejector are aligned opposite to each other.

The energy storage device preferably comprises two spring units, which are, for example, designed as coil springs. The energy storage device is charged, for example, in the closed position of the movable furniture part. For example, the energy storage device is discharged in the open position of the movable furniture part. For example, a longitudinal extension of the energy storage device extends along the opening and closing direction of the movable furniture part.

It is also conceivable that the ejector is connected to the energy storage device. Furthermore, the ejector could be connected to the energy storage device via another component.

It is further proposed that the energy storage device can be charged after the opening process by an electric adjustment unit, wherein the electric adjustment unit comprises a motor, a gearbox and a clutch, wherein a counter element on the energy storage device can be moved linearly in the closing direction by the electric adjustment unit via the gearbox, wherein the ejector is connected to the counter element, wherein the clutch has a coupled and decoupled state, wherein the clutch couples in the closing direction.

For example, the energy storage unit is recharged directly after discharge via the electric adjustment unit. This direct charging of the energy storage unit after the opening movement is advantageous because it allows the user to close the movable furniture section without the additional force otherwise required to charge the energy storage unit. In this way, the user can close the movable furniture section immediately after opening it.

For example, the motor is an electric motor. The motor can rotate in both directions. It is also conceivable that the motor can only rotate in one direction, in which case, for example, the energy storage device is charged by the electric adjustment unit. This could, for example, support the ejection process of the movable furniture component via the electric adjustment unit. Advantageously, because the energy from the energy storage device is built up slowly during the clamping process, the motor can, for example, gradually increase its speed and thus the required torque, resulting in maximum motor efficiency.

It is conceivable that after the ejection process of the movable furniture part is triggered, the motor is switched on after a time delay. For example, the motor should only be switched on once the energy storage device is completely discharged. It is also conceivable that the motor rotates continuously in one direction, preferably in the direction in which the energy storage device is charged. Furthermore, it is conceivable that the second direction of rotation is used to trigger the energy storage device independently of the first.

For example, the transmission is located between the engine and the clutch. Alternatively, the transmission can also be located between the clutch and its mating element. The transmission may, for example, have a single element that interacts with the engine and the clutch, e.g., engaging with both. In this case, the clutch interacts with its mating element. Alternatively, the transmission may have a single element that interacts with or engages with both the clutch and its mating element. In this case, the clutch interacts with the engine.

Furthermore, it is conceivable that the transmission comprises several elements, wherein, for example, a first element interacts with the motor and the clutch, and a second element interacts with the clutch and the mating element. It is also conceivable that several elements, e.g., two elements, of the transmission are arranged between the motor and the clutch, and several elements of the transmission, e.g., two elements, are arranged between the clutch and the mating element. In this configuration, the elements of the transmission preferably interact or engage with one another.

For example, a first element of the transmission interacts with the engine and with a second element of the transmission. The second element of the transmission interacts, for example, with the clutch and with the first element of the transmission. For example, a third element of the transmission interacts with the mating element, and a fourth element of the transmission interacts with the clutch, with, for example, the third and fourth elements of the transmission interacting with each other.

The counter-element is moved preferably linearly in the closing direction by the transmission of the motor's rotary motion via the gearbox, with a coupled clutch, thereby charging the energy storage device. The direction of movement of the counter-element corresponds, for example, to the direction of movement of the movable furniture part. For instance, the counter-element can be moved in the direction of the longitudinal extension of the energy storage device.

It is also conceivable that the coupling only engages in the closing direction.

The coupling is preferably engaged in the closing direction and disengaged in the opening direction. Preferably, the coupling engages in only one direction of rotation, and the energy storage device can be charged in this direction. The coupling preferably has a drive and an output.

Preferably, the rotary motion of the engine is transmitted via the transmission to the clutch drive. Alternatively, a drive shaft of the engine could engage directly with the clutch drive or act upon the clutch to transmit torque. In the engaged position of the clutch, the rotary motion is transmitted from the drive to the output. For example, the clutch output transmits the rotary motion to the mating element, thereby charging the energy storage device. It is also conceivable that the rotary motion of the output is transmitted to the transmission, which then transmits the rotary motion to the mating element, thus charging the energy storage device.

For example, the ejector is arranged on the counter element, with the counter element being connected to one end of the energy storage device.

For example, one end of the energy storage device is held in a fixed position against the device. For example, the energy storage device is discharged during the opening process, whereby the counter element and the ejector are moved in the opening direction. For example, during the opening process, the ejector is in contact with the movable furniture part. For example, the ejector has a contact surface for the movable furniture part, whereby, for example, during the opening process, the contact surface of the ejector rests against the movable furniture part.

During the closing process of the movable furniture part, the energy storage device is preferably already charged by the electric adjustment unit, which also moves the counter element and the ejector back to their starting position. Thus, the movable furniture part preferably only rests against the contact surface of the ejector when it is in the closed position.

Preferably, the contact surface of the ejector is perpendicular to a longitudinal extension of the energy storage device on the counter element. For example, the ejector is projecting from the counter element in the direction of the movable furniture part.

The counterpart element is, for example, cuboid in shape. The counterpart element has, for example, two main surfaces, two secondary surfaces, and two side surfaces. The main surface extends, for example, along the longitudinal and lateral dimensions. For example, a recess is provided on the counterpart element to accommodate the energy storage device. For example, the recess is located on the main surface of the counterpart element. Preferably, the recess on the counterpart element is aligned with the energy storage device. For example, the ejector is located on the opposite side of the counter element from the energy storage device. The ejector is located, for example, on a main surface of the counterpart element.

For example, the longitudinal extent of the counter element runs along the opening and closing direction of the movable furniture part. It is also conceivable that the direction of the longitudinal extent of the counter element runs parallel to the direction of the longitudinal extent of the energy storage device.

Furthermore, it is conceivable that the gearbox engages in an engagement contour of the counter element.

The mating element is, for example, designed as a rack. The mating element preferably has an engagement contour. Preferably, the engagement contour is formed along the longitudinal extent of the mating element. For example, the engagement contour is formed on the main surface of the mating element at an outer edge.

For example, the engagement contour of the mating element engages with a contour of the gearbox. It is also conceivable that the engagement contour of the mating element engages with a contour of the clutch output. For example, the engagement contour of the mating element is matched to the contour of the gearbox or the contour of the clutch.

For example, the transmission has a gear element, wherein the gear element has, for example, a gear contour that engages or meshes with the engagement contour of the mating element. For example, the output of the clutch is designed as a gear, wherein the gear has, for example, a gear contour that engages or meshes with the engagement contour of the mating element. For example, the engagement contour on the mating element is matched to the gear contour of the gear element of the transmission or the gear contour of the clutch output.

It is also conceivable that the transmission comprises a gear element with a gear contour, wherein the gear contour partially forms a axis of rotation around which the gear element is rotatably mounted.

For example, 1/3 of the gear element of the transmission is designed with a gear contour. For example, the partial gear contour on the gear element of the transmission meshes with the engagement contour on the mating element.

It is conceivable that the number of teeth on the partially circumferential gear element of the transmission corresponds to the number of notches on the engagement contour of the mating element. It is also conceivable that with one revolution of the transmission's gear element around its axis of rotation, the mating element can be moved from the open position to the closed position by means of the transmission's gear element. In the open position, the energy storage device is discharged, and in the closed position, it is fully charged.

The gear element, for example, has a cylindrical shape with a circular base. The axis of rotation of the gear element of the transmission preferably runs centrally or along the height of the gear element. The partial circumferential gear contour of the gear element is preferably arranged on the outer surface of the gear element.

For example, the gearbox has two gearbox parts, with a first gearbox part that can be arranged on the furniture body and/or on a body rail.

For example, the first gearbox part and the motor are housed in a first casing, the casing being, for example, cuboid in shape.

If the movable furniture part is designed as a drawer, the first housing, in particular the first gear component, is preferably arranged between a drawer back panel, especially on the rear side of the drawer back panel, and the furniture back panel. The first gear component can be arranged on a furniture carcass back panel. It is also conceivable that the first gear component can be arranged on the drawer back panel.

If the movable furniture part is designed as a furniture door or flap, the first gear component can preferably be arranged on the furniture body, e.g., on a side panel, top, or bottom of the furniture body. It is also conceivable that the first gear component can be arranged on the furniture door or flap itself.

It is also conceivable that a second gearbox component could be arranged on the furniture body and/or on the cabinet rail.

For example, the second transmission component, the clutch, the counter-element, and the energy storage device are housed in a second casing. It is conceivable that the longitudinal extent of the second casing is oriented perpendicular to the longitudinal extent of the first casing.

If the movable furniture part is designed as a drawer, the second housing, in particular the second gear part, is preferably arranged on a drawer bottom, especially on the underside of the drawer bottom. It is also conceivable that the second gear part is arranged at a distance from the drawer bottom, especially the underside of the drawer bottom.

For example, the device has a receptacle for a bracket, allowing it to be attached to guide elements, such as a cabinet rail. It is also conceivable that the device includes a connecting element for attaching it to the furniture carcass, for example, to a side panel.

If the movable furniture part is designed as a furniture door or flap, the second gear part can preferably be arranged on the furniture body, e.g., on a side panel, top, or bottom of the furniture body. It is also conceivable that the second gear part can be arranged on the furniture door or flap itself.

It is also conceivable that the clutch is located between the transmission parts.

For example, the coupling is designed as a double gear. For example, the input and output are designed as gears. In a double gear, a larger gear and a smaller gear are preferably arranged one above the other. Advantageously, the gear contour of the output is offset vertically or arranged in a different plane compared to the gear contour of the input. The gear contour of the input and the gear contour of the output are, for example, aligned in the same direction. For example, the gear contours are arranged on the cylindrical surface of the gears. Preferably, the gears are rotated about a common axis of rotation, with the axis of rotation preferably passing centrally through the input and output, for example, along the height of the gears. For example, the centers of the circular bases of the gears are arranged one above the other, with the axis of rotation passing through the centers of the circular bases of the gears.

Preferably, the gears are rotated about a common axis of rotation, the axis of rotation preferably passing centrally through the drive and driven components, for example along the height of the gears. For example, the centers of the circular bases of the gears are arranged one above the other, with the axis of rotation passing through the centers of the circular bases of the gears.

For example, the input gear meshes with the first gear section and the output gear with the second gear section. For example, a larger gear meshes with the first gear section and a smaller gear with the second gear section. For example, the input gear is a larger gear and the output gear is a smaller gear.

For example, the clutch is designed as a freewheel clutch.

For example, the clutch disengages when the movable furniture part is moved faster in the closing direction than the motor is rotating. This occurs, for instance, when a user manually closes the movable furniture part relatively quickly, or when the rotational speed of the driving part (the clutch drive) exceeds that of the driven part (the clutch output). In this case, the driven part of the clutch is connected to the movable furniture part. When the clutch is disengaged, closing the movable furniture part, for example, moves the ejector and thus the counter-element in the closing direction, thereby charging the energy storage device.

The coupling advantageously counteracts the premature destruction of the components of the device or the electrical adjustment unit.

It is conceivable that the first part of the transmission has a planetary gear system.

The planetary gear set is designed, for example, as a two-stage planetary gear set. This planetary gear set can, for instance, be configured as a reduction gear set. Each stage of the planetary gear set might have three planet gears. The two stages might share a common ring gear.

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

For example, the motor drives the sun gear. It is also conceivable that the motor drives a planetary carrier.

For example, the rotary motion of the planet gears of the first stage is transmitted to the ring gear, which in turn transmits the rotary motion to the planet gears of the second stage. Alternatively, the rotary motion of the planet carriers of the second stage could be transmitted to a sun gear of the second stage, which has a shaft. The shaft of the sun gear of the second stage is, for example, connected to the gear element of the first gear section, so that, for instance, the gear element rotates together with the sun gear of the second stage.

The gear element of the first gear stage interacts, for example, with the drive of the clutch or meshes with the gear of the clutch.

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

For example, a single gear element of the second transmission part meshes with the output of the clutch and with the engagement contour of the counter element.

For example, the second transmission part comprises exactly two gear elements. For example, one gear element of the second transmission part meshes with the output of the clutch, and another gear element of the second transmission part meshes with the engagement contour of the mating element. For example, the gear elements of the second transmission part mesh with each other.

It is also conceivable that the second transmission part has several gear elements. In this case, for example, at least one gear element meshes with the output of the clutch, and another gear element meshes with the engagement contour of the mating element. Alternatively, one gear element of the second transmission part might only mesh with other gear elements of the second transmission part.

It is also conceivable that the second transmission part includes a gear element designed as a double gear.

In a double gear, a larger gear and a smaller gear are preferably arranged one above the other. Advantageously, the gear contour of the smaller gear is offset vertically or arranged in a different plane compared to the gear contour of the larger gear. The gear contours are, for example, aligned in the same direction. For example, the teeth Wheel contours arranged on the cylindrical surface of the gears.

Preferably, the gears are rotated about a common axis of rotation, the axis of rotation preferably passing centrally through the gears, for example along the height of the gears. For example, the centers of the circular bases of the gears are arranged one above the other, with the axis of rotation passing through the centers of the circular bases of the gears.

For example, one gear, e.g., the larger gear, of the gear element meshes with the output of the clutch. Preferably, the other gear, e.g., the smaller gear, of the gear element meshes with another gear element of the second transmission part.

Furthermore, it is conceivable that the second transmission part comprises the gear element which engages in the engagement contour on the counter element.

For example, the gear element that engages in the engagement contour on the mating element is cylindrically designed with a circular base.

For example, a rotation axis runs centrally through the circular base surfaces of the gear element, about which the gear element is rotatably mounted. Preferably, two gear contours are formed on the gear element. For example, the gear contours are oriented in different directions.

A gear contour is, for example, partially formed on the outer surface. For instance, 1/3 of the outer surface of the gear element has a gear contour. The partial gear contour preferably meshes with the engagement contour on the mating element.

For example, a gear contour is formed on the circular base. The gear contour is formed on the circumference of the circular area. The gear contour extends from the gear element in the direction of the height of the cylindrical gear element. The gear contour on the circular base meshes with the other gear element of the second gear part.

For example, the device includes a locking element that holds the charged energy storage device in place.

The device includes a locking element, which is designed to hold the energy storage device in a charged state in a locked position. For example, the locking element is coupled to a release mechanism, which is triggered mechanically. It is conceivable that the release mechanism is depressed by closing the movable furniture part, thereby releasing the energy storage device, which then discharges. For example, the release mechanism is located on the first housing.

Preferably, the furniture has two devices for a movable furniture part. It is also conceivable that the device includes a coupling element for a synchronization element, which is designed to synchronize the unlocking of the charged energy storage device. The synchronization element is, for example, designed to synchronize the unlocking of the devices' energy storage devices. The synchronization refers in particular to the touch-latch function on a relatively wide furniture part, on which two identical devices spaced apart in the width direction are present. The two devices work together to eject the furniture part, with their energy storage devices together providing a cumulative total ejection force on the movable furniture part. If the two devices are not triggered simultaneously, only the force of one of the two energy storage devices is used for ejection. Particularly with fully loaded movable furniture parts, this can mean that the movable furniture part is not ejected.

An advantageous embodiment of the invention is a piece of furniture comprising a furniture body and a movable furniture part, wherein the movable furniture part can be moved relative to the furniture body in an opening direction and in a closing direction opposite to the opening direction, and wherein a device according to one of the previously described embodiments is provided. For example, the device can be arranged on the furniture body and/or on the movable furniture part.

Character description

Further features and advantages of the invention are explained in more detail with reference to an exemplary embodiment shown schematically in the figures.

• 1 ein Möbel perspektivisch von schräg oben mit einer Schublade im vollständig geöffneten Zustand an einem Möbelkorpus mit einer daran angeordneten erfindungsgemäßen Vorrichtung,
• 2 eine perspektivische Ansicht von schräg oben auf eine erfindungsgemäße Vorrichtung,
• 3 eine Vorderansicht auf eine Vorrichtung gemäß 2,
• 4 eine Draufsicht auf eine erfindungsgemäße Vorrichtung gemäß 2, wobei eine Abdeckung am Gehäuse nicht dargestellt ist,
• 5 eine perspektivische Ansicht auf einen Ausschnitt der Vorrichtung gemäß 2, wobei Abdeckungen an den Gehäusen nicht dargestellt sind,
• 6 eine Draufsicht auf einen Ausschnitt A gemäß 4, wobei Abdeckungen an den Gehäusen nicht dargestellt sind.

In detail:

• 1 A piece of furniture shown in perspective from an oblique angle above, with a drawer in a fully open state, attached to a furniture body with a device according to the invention arranged thereon.
• 2 a perspective view from an oblique angle above of a device according to the invention,
• 3 a front view of a device according to 2 ,
• 4 a top view of a device according to the invention 2 , where a cover on the housing is not shown,
• 5 a perspective view of a section of the device according to 2 , where covers on the housings are not shown,
• 6 a top view of a section A according to 4 , although covers on the housings are not shown.

In 1 Figure 1 shows a piece of furniture with a box-shaped cabinet 2 and a movable part, designed as a drawer 4, which is guided by guide elements 3. The drawer 4 comprises a drawer base 5, a drawer front 6, two opposing side walls 7, and a drawer back wall 8. Two guide elements 3, acting in concert, are provided between each side wall 7 of the drawer 4 and a corresponding cabinet side wall to guide the drawer 4. The drawer 4 is mounted on the cabinet 2, via the guide elements 3, for example, two identical partial or full extension slides, so that it can be slidably moved in the opening direction M1 and closing direction M2.

A device according to the invention, designated by reference numerals 9, comprises two housings 11 and 12, wherein a first housing 11 is arranged between the drawer back panel 8 and the cabinet back panel. The first housing 11 is, for example, cuboid in shape. The first housing 11 has, for example, five cover sides. One cover side faces the cabinet back panel and one cover side faces the drawer back panel 8. The three other cover sides connect the two other cover sides, leaving one side of the first housing 11 open. This open side faces a base plate 13 of the second housing 12. The base plate 13 is covered by a cover element 14. The longitudinal extent of the base plate 13 of the second housing 12 is, for example, aligned along the opening and closing directions M1 and M2 of the drawer 4. A second housing 12 is, for example, arranged on the underside of the drawer bottom 5. The second housing 12, for example, is arranged at a distance from the drawer base 5.

Preferably, the device 9 comprises a connecting element 15 with which the device 9 can be connected to the furniture body 2, in particular to a side wall of the furniture body. For example, the connecting element 15 has a rod 16 and a connecting plate 17. One end of the rod 16 is preferably arranged on the base plate 13, with the connecting plate 17 being arranged at the other end of the rod 16 and being connectable to the furniture body 2 (see figure). 3 ). Furthermore, the device has, for example, a receptacle 18 for a holder 10, with which the device can be connected to the guide means 3, in particular a cabinet rail (see. 4 The receptacle 18, for example, is designed as an elongated slot in the device 9.

The device 9 serves to eject the drawer 4 with power assistance over a portion of its opening movement from a closed position relative to the furniture body 2 into the opening direction M1 of the drawer 4. For this purpose, the device 9 has a power storage device 19 and an ejector 20, wherein the discharge of the power storage device 19 moves the ejector 20 and thus the drawer 4 in the opening direction M1. An electric adjustment unit 21 is provided to charge the power storage device 19 after discharge. The electric adjustment unit 21 comprises a motor 22, a gearbox 23, and a clutch 24. The gearbox 23 preferably comprises two gearbox parts 25, 26.

The interior of the first housing 11 preferably accommodates the motor 22 and the first gear unit 25, wherein the first gear unit 25 comprises, for example, a planetary gear 27 and a gear element 28. The motor 22 is, for example, an electric motor. The motor 22 rotates, for example, in both directions. It is also possible that the motor 22 rotates only in one direction, e.g., in the direction in which the drawer 4 is closed or in which the energy storage device 19 is charged. It is conceivable that, after the ejection process of the drawer 4 is triggered, the motor 22 is switched on with a time delay. In this case, for example, the motor 22 is only started when the energy storage device 19 is completely discharged. Furthermore, it is conceivable that the motor 22 rotates continuously in one direction, preferably in the direction in which the energy storage device 19 is charged.

Furthermore, it is conceivable that the device includes a coupling element 41(s. 3 and 4 ) for a synchronization element, which is provided for synchronizing the unlocking of the charged energy storage device 19. The coupling element 41 is preferably arranged on the first housing 11 of the device 9, wherein the coupling element 41 projects from the first housing 11 in the direction of the second device. Preferably, the furniture for a drawer 4 has two devices 9, wherein the synchronization element is configured to synchronize the unlocking of the energy storage devices 19 of the devices 9.

For example, the motor 22 drives a shaft on which a sun gear of the planetary gear set 27 is arranged. The planetary gear set 27 is, for example, two-stage and has, for example, three planet gears and a common ring gear in each stage. The rotation of the sun gear of the first stage of the planetary gear set 27 is transmitted, for example, via several gears of the planetary gear set 27 to a shaft on which the gear element 28 of the first gear unit 25 is arranged. The shaft is preferably arranged centrally on the gear element 28. The gear element 28 engages, for example, with the clutch 24, in particular with the drive of the clutch 24. The clutch 24 is, for example, designed as a double gear set, wherein gears 29 and 30 are arranged one above the other in the double gear set. The gear contours of gears 29 and 30 are arranged at different heights relative to each other, with the gear contours pointing in the same direction. For example, the drive and output of the coupling 24 are each designed as gears 29 and 30, respectively. The gear element 28 of the first transmission part 26 preferably meshes with the gear 29 of the drive. In the engaged position of the coupling 24, the rotary motion of the drive is transmitted to the output, whereby the gear 30 of the output engages with the second transmission part 26.

The coupling 24 is, for example, a freewheel coupling. It is conceivable that the coupling 24 only engages in one direction, e.g., in the closing direction of the drawer 4. Preferably, the coupling 24 disengages when the drawer 4 is closed relatively quickly, e.g., by a user.

The second transmission part 26, for example, has two gear elements 31, 32. For example, one gear element 31 is designed as a double gear, wherein the gear 30 of the output meshes with a gear 33 of the gear element 31. The other gear 34 of the gear element 31 preferably meshes with the other gear element 32 of the second transmission part 26.

The gear element 32, for example, has two gear contours. These gear contours are oriented in different directions. For example, the gear element is cylindrical with a circular base. One gear contour is formed on the circumference of the circular base. This gear contour extends radially from the gear element 32 in the direction of the height of the cylindrical gear element 32. The gear contour on the circular base meshes, for example, with the other gear element 31 of the second gear part 26.

The other gear contour is, for example, partially formed on the outer surface. For instance, 1/3 of the outer surface of the gear element 32 has a gear contour. The partial gear contour preferably meshes with a mating element 35. The mating element 35 preferably has an engagement contour 36 which interacts with the gear contour of the gear element 32.

For example, one end of the energy storage device 19 is arranged on the counter element 35. The other end of the energy storage device 19 is arranged, for example, on an adjusting element 37 on the base plate 13 (see figure). 4 The adjusting element 37 allows, for example, the length or force of the energy storage device 19 to be adjusted. Furthermore, the ejector 20 is preferably arranged on the counter element 35. For example, the energy storage device 19 is loaded when the drawer 4 is closed and unloaded when the drawer 4 is open.

For example, when the energy storage device 19 is discharged, the ejector 20, which is connected to the energy storage device 19 via the counter element 35, is moved in the opening direction M1. In doing so, the ejector 20 moves the drawer 4, which, for example, rests against a contact surface 38 of the ejector 20.

After drawer 4 has been completely ejected, the energy storage device 19 is preferably recharged using the electric adjustment unit 21. For this purpose, for example, the counter element 35 is returned to its initial position using the electric adjustment unit 21 according to 5 and 6 moved. The drawer 4 can then be closed by a user without much effort, since the power storage unit 19 no longer needs to be charged, whereby in the closed position of the school bath 4, the drawer 4 rests against the contact surface 38 of the ejector 20.

If a user closes the drawer 4 before the energy storage device 19 or the counter element 35 is back in its starting position, the coupling 24 disengages so that the drawer 4 can be closed without damaging the components of the device 9, in particular the electrical adjustment unit 21.

In the closed position of drawer 4, further pressing of drawer 4 in the closing direction M2 presses drawer 4, in particular the drawer back panel 8, against the release 39. The release 39 is, for example, located on the first housing 11, in particular on the cover side, which is aligned with the drawer back panel 8. This results in a The locking element 40 is actuated, which releases the previously held charged energy storage device 19, thereby discharging the energy storage device 19.

In this process, for example, the activation of the energy storage devices 19 of the devices 9 can take place synchronously.

The device parts 9 are assigned, for example, to the opposing guide means 3 and can be triggered synchronously, for example, by pressing down on the drawer 4.

Reference symbol list

1

Furniture

2

Furniture carcass

3

Management tools

4

Drawer

5

drawer bottom

6

drawer front

7

Drawer side panel

8

Drawer back panel

9

device

10

bracket

11

Housing

12

Housing

13

Base plate

14

Cover element

15

Connecting element

16

rod

17

Connection plate

18

Recording

19

Energy storage

20

ejector

21

Adjustment unit

22

Motor

23

transmission

24

coupling

25

Gearbox part

26

Gearbox part

27

planetary gear

28

gear element

29

gear

30

gear

31

gear element

32

gear element

33

gear

34

gear

35

Counter element

36

Intervention contour

37

Adjustment element

38

Site area

39

trigger

40

locking element

41

coupling element

Claims (15)

Device (9, 10) for moving a movable furniture part in an opening direction with respect to a furniture body (2) of a piece of furniture (1), wherein the device has a power storage device (19) and an ejector (20), such that with the device mounted on the furniture the movable furniture part can be moved from a closed position into the opening direction under the action of the power storage device (19) via the ejector (20) during an opening process, characterized in that the power storage device (19) can be charged after the opening process by an electric adjustment unit (21), wherein the electric adjustment unit (21) comprises a motor (22), a gearbox (23) and a clutch (24), wherein a counter element (35) on the power storage device (19) can be moved linearly in the closing direction by the electric adjustment unit (21) by means of the gearbox (23), wherein the ejector (20) is connected to the counter element (35), wherein the clutch (24) exhibits a coupled and decoupled state, wherein the coupling (24) couples in the closing direction. Device according to one of the preceding claims, characterized in that the coupling (24) only couples in the closing direction. Device according to one of the preceding claims, characterized in that the ejector (20) is arranged on the counter element (35), wherein the counter element (35) is connected to an end of the energy storage device (19). Device according to one of the preceding claims, characterized in that the transmission (23) engages in an engagement contour (36) of the counter element (35). Device according to one of the preceding claims, characterized in that the transmission (23) includes a gear element (32) with gear contour comprising, wherein the gear contour is partially formed to form an axis of rotation about which the gear element (32) is rotatably mounted. Device according to one of the preceding claims, characterized in that the transmission (23) has two transmission parts (25, 26), wherein a first transmission part (25) can be arranged on the furniture body (2) and/or on a body rail. Device according to one of the preceding claims, characterized in that a second gear part (26) can be arranged on the furniture body (2) and/or on the body rail. Device according to one of the preceding claims, characterized in that the clutch (24) is arranged between the transmission parts (25, 26). Device according to one of the preceding claims, characterized in that the coupling (24) is designed as a freewheel coupling. Device according to one of the preceding claims, characterized in that the first transmission part (25) comprises a planetary gear (27). Device according to one of the preceding claims, characterized in that the second transmission part (26) comprises at least one gear element (31, 32). Device according to one of the preceding claims, characterized in that the second transmission part (26) comprises a gear element (31) which is designed as a double gear. Device according to one of the preceding claims, characterized in that the second transmission part (26) comprises the gear element (32) which engages in the engagement contour (36) on the counter element (35). Device according to one of the preceding claims, characterized in that the device comprises a locking element (40) which holds the charged energy storage device (19). Furniture (1) comprising a furniture body (2) 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 (2), wherein a device according to one of the preceding claims is provided.