WO2020053094A1

WO2020053094A1 - Device for mechanically closing a movable furniture part and method for opening and closing a movable furniture part

Info

Publication number: WO2020053094A1
Application number: PCT/EP2019/073850
Authority: WO
Inventors: Kai Michael Stuke; Alexander Buschmann; Sören Klüter
Original assignee: Hettich-Oni Gmbh & Co. Kg
Priority date: 2018-09-12
Filing date: 2019-09-06
Publication date: 2020-03-19
Also published as: CN112739880B; DE102018122289A1; EP3850176B1; CN112739880A; EP3850176A1

Abstract

The invention relates to a device (10) for mechanically closing a movable furniture part (3), which device comprises a stored energy source (29), which is at least partly loaded as the movable furniture part (3) is manually opened and is at least partly unloaded as the movable furniture part (3) is closed, and a holding mechanism for holding the stored energy source (29) in a loaded state, wherein a timing element (9) is provided, which can be triggered when the movable furniture part reaches an open position, in order to release the holding mechanism and move the movable furniture part (3) in the closing direction after a predefined amount of time has passed. The invention further relates to a method for opening and closing a movable furniture part (3).

Description

Device for mechanically closing a movable furniture part and method for opening and closing a movable furniture part

The present invention relates to a device for mechanically closing a movable furniture part, such as a door, flap or drawer, with an energy store which is at least partially charged when the movable furniture part is opened manually and is at least partially discharged when the movable furniture part is closed and a holding mechanism for holding the energy store in a charged state, and a method for opening and closing a movable furniture part, in particular a door or a drawer.

EP 733 763 A1 discloses a door closer in which the door can be moved in the closing direction via an energy store. The energy store comprises a plurality of partial energy stores, a second partial energy store being switchable depending on a timing element. This can provide additional energy for closing the door if the door remains in an open position. However, it is not shown that a door remains in an open position for a certain period of time in order to carry out a loading or unloading process on a piece of furniture or household appliance in order to automatically close the door after the charging process.

DE 10 2015 212 082 B3 discloses a device for automatically closing a door, in which a pulling element is provided, by means of which the door leaf can be moved in the closing direction. The closing movement can also be braked using a damper. Although the closing movement is supported, an automatic closing of a door from an opening position is not shown.

It is therefore an object of the present invention to provide a device for the automatic mechanical closing of a movable furniture part, such as a door, flap or drawer, and a method for opening and closing a movable furniture part which are more user-friendly and automatic to enable automated movement of the movable furniture part in the closing direction via mechanical means. This object is achieved with a device with the features of claim 1 and a method with the features of claim 16.

In the device according to the invention, a charged energy store is held by a holding mechanism, which can be released by a mechanical timing element when an opening position of the movable furniture part relative to a body is reached, with the discharge of the energy store by releasing the holding mechanism only after one predetermined time of the timer. As a result, the user can first manually open the movable furniture part, in particular the door or flap or drawer, and thereby load the energy storage device in order to then carry out a charging or discharging process, the door being opened via the energy storage device after the predetermined period of time Closing direction is moved without the user having to intervene manually. This simplifies handling, since the user only has to make an active contribution when opening the door, while the closing process can take place automatically or automatically.

According to a preferred embodiment, the mechanical timing element comprises a spring and a damper. The spring and the damper can act on a linearly movable component or a pivoting lever, which then causes the holding mechanism to be released. The damper causes a delay in the movement driven by the spring, and by adjusting the spring force and the damping force, the delay for releasing the holding mechanism can be set.

Preferably, the movable furniture part can be moved completely into the closed position by means of the energy store. From a pull-in area, for example 30 ° before the closed position, the closing movement can be influenced by an additional energy store, in particular a pull-in spring and / or a damper, the pull-in spring and / or damper being able to be provided in a hinge or pull-out rail, for example - Those who swivel or move the movable furniture part on the body.

The holding mechanism preferably has a driver which can be moved indirectly or directly with the movable furniture part and to which the energy store is coupled, the driver being able to be deposited on an angled end section of a guide link in order to move the energy store in keep charged state. The driver can then be released from this angled end section via the timing element.

In a further embodiment, a damper is provided for braking the door before a maximum opening position is reached. The damper prevents loud stop noises when the maximum opening position is reached and can also be integrated into the device.

The device preferably comprises a joint mechanism formed from a plurality of levers, with a connection for fixing to a movable furniture part or to a body being formed on an end lever. The housing of the device is preferably provided on the body and the connection of a lever to the movable furniture part, but an inverse arrangement with the housing on the movable furniture part and the connection to the body is also possible.

A first lever of the lever mechanism can be connected indirectly or directly to a pulling element, by means of which a slide can be moved along a guide path, the slide being engageable with a driver that is pre-tensioned by the energy store. Optionally, the carriage can also be brought into engagement with a second driver, which is connected to the first driver via a damper. This damper between the first driver and the second driver preferably forms the opening damper, which becomes effective only shortly before the maximum opening position of the movable furniture part is reached. In parallel to that

A damper can be provided between the two drivers and the drivers can be preloaded relative to one another, so that the movable furniture part, for example door, flap, drawer or sliding door, can be moved automatically into the maximum opening position.

In a further embodiment, the timing element comprises a pivoting lever which can be rotated in order to unlock a driver which can be moved along a guideway and can be fixed at an angled end section from the fixed position. The pivot lever can be connected to a damper and a spring, which is responsible for a delayed movement of the

Provide swivel lever. Only after the swivel lever has been released by a blocking element can the swivel lever be braked by the spring and the damper in order to unlock the driver. The blocking element can, for example, be a lever that is located between the housing and the attachment binding is arranged on the door. Only shortly before the maximum opening position is reached is the lever moved into a position in which the swivel lever is released. This can be achieved, for example, by curve guidance on a surface of the swivel lever and a corresponding contact surface on the lever.

The time between activation of the timer and unlocking of the locking mechanism is preferably adjustable. The time period is preferably in a range between 3 s and 60 s, preferably 5 s to 30 s, depending on how long the user wants an open door. To set the time span, the damper can be designed as a fluid damper, for example, the damping force being adjustable by adjusting the volume flow through a piston of the fluid damper, and thus also the time period until the timing element ensures that the holding mechanism is released. A setting of the time period between activation of the timing element and the unlocking or releasing of the holding mechanism can also be set by other means, for example by changing the spring force of the spring of the timing element.

In the method according to the invention for opening and closing a movable furniture part, the movable furniture part is first opened manually and at least one energy store is charged during the opening movement, the energy store being held in a charged state by a holding mechanism. The door is then positioned in an open position, which activates a timer. The opening position can be at least 80 ° from the closed position, depending on the maximum opening position, for example of the hinges. By positioning the movable furniture part in the open position, a timer is activated, which releases a holding mechanism after a predetermined time, in order then to move the movable furniture part in the closing direction via the energy store. This improves handling, since the movable furniture part is automatically moved in the closing direction, and the method can be used particularly well for furniture or household appliances.

The energy store is preferably charged in an angular range from the closed position to a first open position of the movable furniture part, for example up to a range between 30 ° and 60 °. This charging area is adjoined by an area in which the movable furniture part is free to move further in the opening direction. This loading rich can be, for example, between 30 ° to 90 °. Only when the movable furniture part, such as a door, is arranged in an opening position, for example in a range up to 20 °, in particular 10 ° before the maximum opening position, can the timing element be activated. This enables easy handling, since the forces at the beginning to open the door are perceived as less disruptive than forces in an opening area away from the closed position.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it:

Figure 1 is a perspective view of a piece of furniture according to the invention with a device for mechanically closing a door;

Figure 2 is a schematic view for explaining the opening and

Closing movement of the door;

Figure 3 is a view of the inventive device for mechanical

Closing the door in a closed position;

Figure 4 is a view of the device of Figure 3 in an open position with a charged energy storage;

Figure 5 is a view of the device of Figure 3 at the beginning of the opening damping;

Figure 6 is a view of the device of Figure 3 in the maximum open position when activating the timer;

Figure 7 is a view of the device of Figure 3 with the door in the maximum

Opening position when releasing the holding mechanism;

FIG. 8 shows a view of the device of FIG. 3 during a closing movement of the door through the energy store;

9 shows a view of the device of FIG. 3 at the end of the closing movement, and FIGS. 10A and 10B show two views of a piece of furniture or household appliance according to the invention with a device for mechanically closing a drawer.

A piece of furniture 1 comprises a piece of furniture 2 on which a door 3 is pivotally held. Hinges 4 are provided for this purpose, which have a side part 5 fixed to the furniture body 2, which is fixed to the furniture body 2 via a mounting element 6. On each side part 5 of a hinge 4, a hinge part 7 is pivotally mounted, which is fixed to the door 3. The hinges 4 can be designed as four-joint hinges, but it is also possible to use single-joint hinges or seven-joint hinges.

Furthermore, a device 10 for mechanically closing the door 3 is provided, which comprises a housing 11 which contains a locking mechanism which has a lever 13 which is connected to the door 3 via a connection 12. It is also possible to fix the housing 11 to the door 3 and the connection 12 to the furniture body 2. In addition, the device 10 can also be used for household appliances or other devices instead of furniture.

The function of the device 10 for mechanically closing a door 3 is first explained schematically with reference to FIG. 2. In a first opening area with the angle a, which can lie, for example, between 30 ° and 80 °, the door is moved manually against the force of an energy store. In a second phase, shown schematically by the arrow, the door 3 is moved further in a freewheel in the opening direction, wherein the angular range of the freewheel can be, for example, in an angular range β between 30 ° and 60 ° away from the closed position. In the third phase, door 3 is moved until shortly before the maximum opening position is reached, and is damped in this angular range g, that is, braked until the maximum opening position is reached.

The maximum opening position can be, for example, in an angular range g between 90 ° and 180 °. A timing element is activated in this last angular range, as is indicated schematically by the dashed line. This line symbolizes a time span between the activation of a timer and the release or unlocking of a holding mechanism for the automatic automatic closing of the door. After this period, for example between 3 s and 60 s, the door 3 is automatically moved in the closing direction by the energy store. After accelerating the door 3 the door continues to move in the closing direction in the freewheel mode as shown by the arrows. Before the closing position is reached, closing damping and retraction can take place through the hinges 4, which have, for example, a retraction spring and a retraction damper in order to brake the closing movement of the door 3 until it is in the

Closing position is arranged. However, the closing damping can also be carried out exclusively by the spring 34 and / or the damper 35 of the device.

The schematic sequence described in FIG. 2 is described below with reference to FIGS. 3 to 9 with regard to a possible mechanical implementation.

In Figure 3, the door 3 is shown in a closed position on the furniture body 2. The housing 11 is fixed on the furniture body 2 and the connection 12 is fixed on the door 3. A first lever 13 is articulated on the connection 12, which is articulated on the side facing away from the connection 12 via an axis 14 with a second lever 15 which is arranged on the housing 11 so as to be rotatable about an axis 16. On the lever 13 or the axis 14, optionally also on the lever 15, a tension element 18 is provided which is connected to a slide 20. For this purpose, the tension element 18 can have a bolt 19 which is connected to the slide 20. The carriage 20 is guided along a linear guide 21 and 23 on the housing 11.

A first projection 24 is formed on the slide 20 for engagement with a driver 25, which is connected by an energy store 29 in the form of a spring, in particular a tension spring. The driver 25 has guide elements 26, for example pins or bolts, which are formed in a guide track 27 on the housing or a component connected to the housing 11, the guide track 27 having an angled end section 28. The guideway 27 can be designed as a groove or slot.

In the first phase, the door 3 is pivoted manually in the opening direction, as shown in FIG. 4. By moving the door 3 in the opening direction, the lever 13 is pivoted about the axis 14 and, in addition, the pulling element 18 is moved in the opening direction by the movement of the axis 14, the movement of the pulling element 18 being transmitted to the slide 20 which carries the Driver 25 against the force of the energy store 29 in the opening direction tung moves. The energy store 29 is fixed on the side opposite the driver 25 on a holder 30 on the housing 11. At a predetermined opening angle, for example in a range between 30 ° and 60 °, the driver 25, which is biased by the energy store 29, is parked at the angled end section 28, and the projection 24 disengages from the driver 25. As a result, the door 3 can now can be moved further in the opening direction without the action of the energy store 29, that is to say in the free run.

FIG. 4 shows that the movement of the slide 20 has moved a second projection 36 in the vicinity of a receptacle on a second driver 31, the second driver 31 being movable along a guideway 33 with an angled end section. The second driver 31 is still in a parking position in FIG.

The second driver 31 is connected to the first driver 25 via a damper 35, which is designed as a linear damper and has a damper housing and a linearly movable piston rod. The damper 35 can be fixed at one end to a guide element 26 of the driver 25, for example by latching means, and on the opposite side the damper 35 is connected to a further guide element 32 of the second driver 31, for example by latching means. The guide elements 32 are also designed as pins or bolts and thus enable the damper 35 to be fixed easily.

A further spring 34 is also tensioned between the two drivers 31 and 25, which spring is designed as a tension spring and biases the drivers 31 and 25 towards one another.

If the door 3 is moved by a pivoting range of the freewheel, the position shown in FIG. 5 is reached, in which the opening damping is activated. This activation takes place by unlocking the driver 31 from the parking position from the angled end section of the guideway 33, so that the second driver 31 is now pulled towards the first driver 25 by the force of the spring 34. At the same time, the damper 35, which is designed as a pressure damper, and brakes a movement of the second driver 31 towards the first driver 25. In the area of the opening damping, the first driver 25 is held in the park position on the angled end section of the guideway 27. The door 3 can be moved in the opening direction until the maximum opening position is reached, which can be, for example, in a range between 90 ° and 180 °. During this opening movement, a timing element 9 is activated at a certain point shortly before reaching the maximum opening position or at the maximum opening position. The timer 9 can release the driver 25 from the end section 28 after a predetermined period of time.

The timing element 9 can be actuated via the lever 15, which is rotatably mounted on the housing 11 about the axis 16. On the lever 15 or its bearing axis 16, a damper 43 and a spring 44 are fixed, which are connected to a pivot lever 40 at the opposite end. The pivot lever 40 has not been moved noticeably during the opening movement of the door 3 in FIGS. 3 to 5 and is rotatably mounted about an axis 41. Furthermore, a guide element 17 acts on the pivot lever 40 and is held on a boom on the lever 15. The guide element 17 is moved along a curve guide 42 on the pivot lever 40, which is curved, and thus the pivot lever 40 is held in the same position despite the opening movement of the door 3, even if the guide element 17 is moved along the curve guide 42 .

In Figure 6, the opening position of the door 3 is shown, at which the timer 9 was activated. By moving the door 3 further in the opening direction, the lever 15 was pivoted further about the axis 16, so that the guide element 17 was lifted off the curve guide 42. As a result, the timing element 9 is now activated since the forces acting on the swivel lever 40 through the springs 44 and the damper 43. The spring 44 rotates the swivel lever 40 clockwise in FIG. 6, and the damper 43 brakes this swivel movement, which takes place slowly.

FIG. 7 shows the position in which the pivot lever 40 of the timing element 9 releases the driver 25 of the locking mechanism from the locked position on the angled end section 28. The pivot lever 40 acts on the driver 25 or the guide element 26 in order to move the guide element 26 out of the angled end section 28, so that the driver 25 is no longer held on the angled end section 28, but along the guideway 27 through the Energy storage 29 is movable. By unlocking the driver 25 by the timing element 9, the driver 25 is now moved by the energy store 29 along the guideway 27, the carriage 20 being moved by the second driver 31. The driver 25 acts on the compressed damper 35, which in turn acts on the second driver 31, which presses on the projection 36, which presses the slide 20 to the right in FIG. As a result, the pulling element 18 is moved with the slide 20, which in turn causes the levers 13 and 15 to pivot, and pivots the door 3 in the closing direction. At the same time, the timing element is reset via the guide element 17 of the leaf 15.

The door 3 is thus automatically accelerated in the closing direction by the energy store 29 until the position shown in FIG. 8 is reached. In this position, the first driver 25 presses on the second driver 31 due to the effect of the energy store 29, which, however, has arrived at the end of its travel path and is now parked again at the angled end section of the guideway 33. After the second driver 31 has been pivoted, the projection 36 on the carriage 20 is disengaged from the driver 31, and the door 3 can be freely moved in the closing direction, as shown in FIG. 9. Due to the acceleration of the door 3 due to the energy store 29, however, the door 3 is moved further in the closing direction if the user does not stop this movement.

The driver 25 reaches an end position along the guide path 27 in front of the driver 31, so that the driver 31 moves away from the driver 25 against the force of the spring 34 due to the closing movement of the door 3, and the damper 35 is moved apart again. FIG. 9 shows the driver 25 in an end position and the second driver 31 on the angled end section 33, in which there is no longer any engagement with the slide 20.

The door 3 can now be moved further in the closing direction, the slide 20 being moved further to the right by the lever 13 and the pulling element 18. In a predetermined pull-in range, for example 20 ° to 40 ° before the closed position, the door 3 is pulled in by pulling springs on the hinges 4 in the firing direction, with dampers optionally being able to be provided on the hinges 4 to move the door 3 when moving

Braking the closing direction before reaching the closing position. Through this Closing movement, the carriage 20 is again shown in Figure 3

Moves the closed position, the projection 24 on the carriage 20 passes over the driver 25, which can be pivoted, for example, in the end position, so that the projection 24 again locks on a receiver of the driver 25. Alternatively, the projection 24 can be designed to be bendable in order to be able to drive over the driver 25, or the slide 20 is designed to be pivotable in the region of the projection 24. After reaching the closed position, an opening process can then be initiated.

The timing element 9 comprises a damper 43, a spring 44 and a pivoting lever 40. To set the time period between activation of the timing element 9 and unlocking of the driver 25, the force of the spring 44 can be changed, or the volume flow at Pressing or pulling the linear damper between two chambers in a damper housing can be adjusted. The time span can be, for example, between 3 s and 60 s, depending on the application for which device 10 is used.

The device 10 shown in FIGS. 3 to 9 can be modified in many ways within the scope of the invention. For example, instead of the tension springs shown, compression springs, gas pressure springs or other spring elements can also be used. In addition, the dampers can also be designed as rotary dampers instead of as linear dampers.

The drivers 31 and 25 can be guided directly on the housing 11 via separate guide devices.

Furthermore, the lever mechanism between the housing 11 and the door 3 can be changed, for example if the hinges are not designed as four-joint hinges. As a result, the levers 13, 15 and the tension element 18 can also change.

FIGS. 10A and 10B show a piece of furniture T or household appliance which has a furniture body 2 ″ on which a drawer 3 ″ is held so that it can be moved via pull-out guides, in which a locking mechanism similar to that in the previous exemplary embodiment is provided.

In FIG. 10A, the drawer 3 'is arranged on the furniture body 2' in the closed position. The drawer 3 'is connected to a slide 20' or formed integrally with the carriage 20 ', on which a first projection 24' is formed for engagement with a driver 25 ', which is connected by an energy store 29' in the form of a spring. The driver 25 'has guide elements which are formed in a guide track 27 on a housing or a rail of the pull-out guide. The guideway 27 'has an angled end section 28', on which the driver 25 'can be parked with the tensioned energy store 29'.

When opening, the drawer 3 'is manually pulled in the opening direction, the movement being transmitted to the slide 20' which moves the driver 25 'against the force of the energy store 29' in the opening direction until the driver 25 'at the angled end section 28' is parked, where after the protrusion 24 'comes out of engagement of the driver 25' and can be moved further in the opening direction in the freewheel.

FIG. 10B shows the maximum opening position of the drawer 3 'at which a timer 9' was activated. An activator 17 ″, in particular in the form of a run-on slope, is provided on the drawer 3 ″, which acts on a swivel lever 40 ″ in order to release it from the locked position. As a result, the timer 9 ″ is started and the swivel lever 40 ″ is moved by the forces of a spring 44 ″ against the force of a damper 43 ″, similar to that which was already explained in detail in the first exemplary embodiment.

The driver 25 'of the folding mechanism is released from the locked position at the angled end section 28' by the pivot lever 40 '. The driver 25 'is moved by the energy store 29' along the guide track 27 ', the carriage 20' being pulled in the closing direction by the second driver 31 '. The drawer 3 'is automatically accelerated in the closing direction by the energy store 29' until the second driver 31 'has reached the end of its travel path and is parked at the angled end section of the guideway 33 and the first driver 25' cannot be moved further in the closing direction. The driver 31 'is decoupled from the projection 36' and the drawer 3 'can be moved further in the free-running direction in the closing direction. By accelerating the drawer 3 ', it can be automatically moved into the closed position if the user does not stop the movement. Reference list

1, 1 'furniture

2, 2 'furniture body

3 door

3 'drawer

4 hinge

5 side part

6 mounting element

7 hinge part

9 timer

10 device

11 housing

12 connection

13 levers

14 axis

15 levers

16 axis

17 guide element

17 'activator

18 tension element

19 bolts

20, 20 'sledge

21 leadership

24, 24 'lead

25, 25 'carrier

26 guide element

27, 27 'guideway

28, 28 'end section

29, 29 'energy storage

30 holders

31, 3T carrier

32 guide element

33 guideway

34 spring

35 dampers

36, 36 'lead

40, 40 'swivel lever

41 axis 42 cornering

43 damper 44, 44 'spring a angle ß angle

Y angle

Claims

Expectations

1. Device (10) for mechanically closing a movable furniture part (3, 3 '), with an energy store (29, 29') which is at least partially charged when the movable furniture part (3, 3 ') is opened manually and is at least partially discharged when closing, and a holding mechanism for holding the energy store (29, 29 ') in a charged state, characterized in that a timing element (9, 9) is provided which can be triggered when the movable furniture part has reached an open position in order to release the holding mechanism after a predetermined time and to move the movable furniture part (3, 3 ') automatically by discharging the energy store in the closing direction.

2. Device according to claim 1, characterized in that the timing element (9, 9 ') comprises a spring (44, 44' ') and a damper (43, 43' ').

3. Device according to claim 1 or 2, characterized in that by means of the energy store (29, 29 ’) the movable furniture part (3, 3’) is completely movable into the closed position.

4. Device according to one of the preceding claims, characterized in that the holding mechanism has a driver (25, 25 ') which can be moved along a guide track (27, 27') and which is attached to an angled end section (28, 28 '). can be stored in order to keep the energy store (29, 29 ') in a charged state.

5. Device according to one of the preceding claims, characterized in that a damper (35) for braking the movable furniture part (3, 3 ’) is provided before reaching the maximum opening position.

6. Device according to one of the preceding claims, characterized in that a housing (11) is provided on which a first lever (15) is rotatably mounted, which is articulated to a second lever (13) to which a connection ( 12) is provided for fixing to the movable furniture part (3, 3 ').

7. Device according to one of the preceding claims, characterized in that a first lever (15) indirectly or directly, ins- in particular coupled by a pulling element (18) to a slide (20) along a guide track (21) and the slide can be moved along a guide track, the slide (20) being engageable with the driver (25), which prestresses the energy store (29, 29 ').

8. The device according to claim 7, characterized in that the Schlit ten (20, 20 ') with a second driver (31, 31') can be brought into engagement, which is preferably via a damper (35) with the first driver (25) is connectable.

9. Device according to one of the preceding claims, characterized in that the slide (20, 20 ') can be coupled to at least one driver (25, 31) in the maximum opening position and / or is in operative connection.

10. The device according to claim 8 or 9, characterized in that the two drivers (25, 41) via a spring (34) are biased to each other.

11. Device according to one of the preceding claims, characterized in that the timing element (9, 9 ') comprises a linearly movable component or a pivoting lever (40, 40') in order to be movable along a guide track (27) and on one to unlock or release the angled end section (28) of the catch (25) which can be fixed from a fixed position on the angled end section (28).

12. Device according to one of the preceding claims, characterized in that the time period between activation of the timer (9, 9 ’) and unlocking the locking mechanism is adjustable.

13. The apparatus of claim 11 or 12, characterized in that a damper (43) is designed as a fluid damper for adjusting the duration of the timing element and the volume flow of the fluid for adjusting the timing element (9, 9 ') is adjustable.

14. Household appliance or furniture (1) with a movable furniture part (3, 3 ') with a device (10) for mechanically closing the movable furniture part (3, 3') according to one of the preceding claims.

15. Household appliance or furniture according to claim 14, characterized in that the movable furniture part (3, 3 '), in particular door, via at least one hinge (4) with a retraction spring and a damper for braking the closing movement on a body (2 ) is held.

16. A method for opening and closing a movable furniture part (3, 3 ') with the following steps:

- Manual opening of a movable furniture part (3, 3 ') and charging of an energy store (29, 29') by the opening movement of the movable furniture part, the energy store (29, 29 ') being in a charged state by a Holding mechanism is held;

- Positioning the movable furniture part (3, 3 ’) in an opening position and activating a timer (9, 9’);

- Release of the holding mechanism after a predetermined time by the timer (9, 9 ’), and

- Moving the movable furniture part (3, 3 ') through the energy storage

(29, 29 ’) in the closing direction.

17. The method according to claim 16, characterized in that the charging of the energy store (29, 29 ') takes place from the closed position to a first open position of the movable furniture part (3, 3'), and the movable furniture part (3, 3 ') after the first opening position in a freewheel is moved further in the opening direction to the opening position for activating the timer (9, 9').