EP3487359B1 - Pushing-out device for a movable furniture part, and piece of furniture - Google Patents

Description

The present invention relates to an ejection device for a movable furniture part according to the preamble of claim 1, and a piece of furniture with at least one drawer.

DE 20 2009 013 733 U1 discloses a device for opening a drawer, in which two release elements are coupled to one another via a rotatable rod.

In the EP 1 785 063 A1 discloses a device for opening and closing a movable furniture part, in which two locking elements of a locking unit are coupled to one another via a torsion bar.

The EP 1 314 842 A1 discloses a device for opening and closing a movable furniture part, in which two release and drive units are provided, which are coupled to one another via a linkage, in order to also unlock the second release and drive unit and a movable furniture part when a release and drive unit is unlocked to move in the opening direction. To synchronize the movement, two pivot levers are provided which are connected to one another via a linkage, so that the space required for the synchronization means is considerable. In addition, a large number of components are provided which make production and assembly complex.

The DE 10 2011 001 983 A1 discloses an ejection device in which a pivotably mounted lever is pretensioned in the ejection direction via a spring and can be latched via a latching mechanism when the spring is tensioned. The ejector device can be coupled to a further ejector device via a connecting rod, the connecting rod being arranged in the area of the axis of rotation of the two levers. It is true that this enables the unlocking process to be synchronized, but the space requirement in the rear area of the drawer is considerable.

For a more compact design, an ejection device according to FIG DE 10 2012 112 675 A1 an ejector with two pivotably mounted ejector levers can be mounted on a rear wall of a drawer, which can be locked via a latching mechanism, an unlocking process being synchronized via two rods and a gear. The ejector requires a comparatively stable back wall on a drawer and can therefore not be used for all types of drawers.

It is therefore the object of the present invention to create an ejection device for a movable furniture part which is of compact design and enables two ejection units to be easily synchronized.

This object is achieved with an ejection device having the features of claim 1.

According to the invention, the two ejection units are synchronized with regard to unlocking via a coupling means which comprises at least one pivotably mounted pendulum. As a result, the movement of the pendulum can be used to unlock the other ejection unit when one ejection unit is unlocked. The position of the connecting means between the two ejection units can be optimally positioned by the pendulum, in particular also below a bottom of a drawer. This eliminates the need to arrange the drawer with its rear wall at a greater distance from a rear wall of a furniture body.

According to the invention, each ejector unit comprises a pivotably mounted pendulum. The two pendulums are connected to one another via a connecting rod, the connecting rod being connected to the pendulums at a distance from an axis of rotation of the two pendulums. The axis of rotation of the two pendulums can be arranged in the vertical direction above the connecting rod, so that the pendulums protrude downwards. This enables the pendulum to be installed on a housing that is mounted in the area of a pull-out guide. The pendulums protrude so far down that the connecting rod can be positioned below a bottom of the drawer. In addition, gravity can then support the unlocking process, since the weight forces act on the pendulums in the unlocking direction.

A pendulum includes a pendulum arm which is mounted pivotably about an axis of rotation. The coupling of the two pendulum arms via a The connecting rod enables a sensitive system that requires short switching travel and only needs to transmit low forces, as the length of the pendulum arm ensures a corresponding force transmission.

The connected pendulums preferably have a horizontal axis of rotation. The connecting rod of the pendulum moves approximately parallel to the imaginary axis of rotation of the connected pendulum. Due to manufacturing tolerances or other structural conditions, the imaginary axis of rotation between the connected pendulums can deviate from the horizontal.

In one embodiment, each ejection unit can be unlocked by pressing the movable furniture part from the closed position into an overpressing position. The movable furniture part can be designed as a drawer, but it can also be used for doors, flaps, sliding doors or other movable furniture parts. Unlocking by pressing in the movable furniture part enables unlocking by means of a "push-to-open" latching mechanism.

Each ejection unit preferably has a housing on which a pendulum is rotatably mounted. In each case one pendulum can be latched onto a bearing receptacle on the housing, so that easy assembly of the pendulum is possible. An actuating arm can be moved via the pendulum and is pivoted together with the pendulum for unlocking.

The pendulum is preferably connected to a slide guided on a housing, by means of which a latching mechanism of the ejection unit can be unlocked. Instead of the slide, a swivel arm or another adjusting element such as e.g. a gear assembly can be used for unlocking.

A loop-shaped guide track for a control element can preferably be formed on a housing of the ejection unit, which can be locked on a latching receptacle of the guide track when the energy storage device is tensioned. The locking receptacle can be designed in several parts, with a first part, which is, for example, formed integrally with the housing and a second part movable relative to the first part, which has an actuating element, in particular a slide, for unlocking, which can be moved via the pendulum . The adjusting element can be locked in an open position of the locking receptacle. As a result, the latching receptacle has a closed position for locking the control element and an open position in which the control element can be moved through between the two parts of the locking receptacle. The movable part of the locking receptacle can be biased into the closed position by a spring.

In a further embodiment, an ejector element is guided along a guide on each housing of an ejector unit and is pretensioned in the opening direction by an energy store. The guide can be oriented essentially perpendicular to the axis of rotation of the pendulum and run, for example, parallel to a longitudinal direction of an adjacent pull-out guide. As a result, the installation space adjacent to the pull-out guide can be used to accommodate the housing of the ejection unit.

The pendulum for connecting the two ejection units can preferably be pivoted through an angle smaller than 90 °, preferably smaller than 60 °. A movement of the pendulum between 5 ° and 30 ° can be sufficient to synchronize the two ejection units when unlocking.

The ejection device according to the invention is preferably used in a piece of furniture with at least one drawer. Use in household appliances with drawers is also advantageous.

Figuren 1A und 1B

zwei perspektivische Ansichten eines bewegbaren Möbels mit einer erfindungsgemäßen Ausstoßvorrichtung;

Figuren 2A und 2B

zwei Ansichten des Möbels der Figur 1 im Schnitt;

Figur 3

eine perspektivische Ansicht einer Ausstoßeinheit der Ausstoßvorrichtung;

Figuren 4A bis 4C

mehrere Ansichten der Ausstoßeinheit der Figur 3;

Figuren 5A bis 5C

mehrere Ansichten eines Pendels der Ausstoßeinheit der Figur 3;

Figuren 6A und 6B

zwei Ansichten des Rastmechanismus der Ausstoßeinheit der Figur 3 in einer Schließposition;

Figuren 7A und 7B

zwei Ansichten des Rastmechanismus der Ausstoßeinheit der Figur 3 beim Entriegeln;

Figuren 8A bis 8C

mehrere Ansichten des Rastmechanismus der Ausstoßeinheit der Figur 3 beim Öffnen;

Figuren 9A und 9B

zwei Ansichten des Rastmechanismus der Ausstoßeinheit der Figur 3 beim Entriegeln eines Teils der Rastaufnahme;

Figuren 10A und 10B

zwei Detailansichten beim Verriegeln der Rastaufnahme in der geschlossenen Position, und

Figur 11

eine Ansicht des Gehäuses im Bereich der Führungsbahn des Rastmechanismus.

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

Figures 1A and 1B

two perspective views of a movable piece of furniture with an ejection device according to the invention;

Figures 2A and 2B

two views of the furniture of the Figure 1 on average;

Figure 3

a perspective view of an ejection unit of the ejection device;

Figures 4A to 4C

several views of the ejection unit of the Figure 3 ;

Figures 5A to 5C

several views of a pendulum of the ejection unit of Figure 3 ;

Figures 6A and 6B

two views of the locking mechanism of the ejection unit of Figure 3 in a closed position;

Figures 7A and 7B

two views of the locking mechanism of the ejection unit of Figure 3 when unlocking;

Figures 8A to 8C

several views of the locking mechanism of the ejection unit of Figure 3 When opening;

Figures 9A and 9B

two views of the locking mechanism of the ejection unit of Figure 3 when unlocking part of the locking receptacle;

Figures 10A and 10B

two detailed views when locking the locking receptacle in the closed position, and

Figure 11

a view of the housing in the area of the guide track of the locking mechanism.

In the Figures 1A and 1B a drawer 1 is shown which can be mounted on a piece of furniture or a household appliance and has a front panel 2 which is connected to two side frames 3. A pull-out guide 4 is provided on each side frame 3, each pull-out guide 4 being mounted on a surrounding body via a fastening element 5. The movable part of the pull-out guide is connected to holders 6 which support a bottom 50 of the drawer.

In order to move the drawer 1 from a closed position in the opening direction, a first ejector unit 7 and a second ejector unit 7 'are provided, which are each arranged on a pull-out guide 4 on opposite sides of the drawer 1. It is also possible for the ejector unit 7, 7 'to be arranged in the drawer frame. A wide variety of arrangement combinations of ejection units are known from the prior art. Each ejection unit 7 comprises a housing 8 on which a guide track 9 is arranged essentially parallel to the longitudinal direction of the pull-out guide 4. An ejector element 10 is guided on the guide track 9, which can be coupled at least over part of the path of the drawer 1 in the opening and closing directions in order to eject the drawer 1 when it is opened and to add an energy storage device to the ejection unit 7 or 7 'when it is closed tighten. The direction of movement of the ejector element 10 is essentially parallel to the longitudinal direction of the pull-out guide 4 up to an angled end section at which the coupling between the drawer 1 and the ejector element 10 is decoupled.

The first ejection unit 7 is synchronized with the second ejection unit 7 'via coupling means so that the two ejection units 7 and 7' are unlocked as simultaneously as possible. The coupling means include a connecting rod 40 which is arranged between two pendulums 14 of the ejection units 7 and 7 '. The connecting rod 40 is positioned below the bottom 50 of the drawer, so that a rear wall of the drawer 1 can be arranged adjacent to a rear wall of a furniture body or a household appliance. The arrangement of the connecting rod 40 depends on the application. If the drawer is e.g. is designed as a suspension file drawer or a rubbish bin drawer, the connecting rod can e.g. be laid in the area below the rear wall. If the drawer has a recess for a siphon, the connecting rod 40 can be moved further forwards below the bottom of the drawer by means of the pendulum. In the case of special applications, it may also be possible for the connecting rod 40 to run above the frame by means of the pendulum.

The two ejection units 7 and 7 ′ can be designed mirror-symmetrically to a center plane, only the ejection unit 7 being described below, since the ejection unit 7 ′ has the same functionality as the ejection unit 7.

The ejection unit 7 is in Figure 3 shown. The ejector element 10 can be displaced as a driver along the guide track 9 on the housing 8. On the housing 8 there is a cartridge 12 with an energy store, by means of which the ejector element 10 is biased in the opening direction. The ejector element 10 can be locked via a latching mechanism with a tensioned energy storage device, whereby the movable furniture part can be pressed in the closing direction for unlocking, thereby moving a slide 13 which is coupled to a pendulum 14 of the ejector unit 7. As a result, a pivoting movement of the pendulum 14 of the ejection unit 7 via the connecting rod 40, which is held on opposite sides on the pin 15, also unlocks the ejection unit 7 ', even if the Front panel 2 of the drawer, for example, is only pressed in on one side.

As in the Figures 4A to 4C is shown, the pendulum 14 is located on a bearing receptacle 19 on the housing 8 and is locked there. A pin 15 for fixing the connecting rod 40 is arranged at a distance from an axis of rotation 16, for example at a distance between 0.5 cm to 2 cm, so that only a slight pivoting of the pendulum 14 is required for unlocking. Depending on the use of the drawer, the connecting rod 40 can also be spaced apart from the axis of rotation 16 at a greater distance.

As in Figure 4B and in the Figures 5A to 5C is shown, the pendulum 14 can be rotated about an axis of rotation 16, which is held on the bearing receptacle 19. An actuating arm 17, which engages in a receptacle 18 which is connected to a slide 13, is coupled in a rotationally fixed manner to the pendulum 14. The slide 13 is pretensioned in the opening direction via a spring 32. For this purpose, the spring 32 is supported on one side on a web 34 of the housing 8 and on the opposite side on a web 33 which is connected to the slide 13. By pivoting the pendulum 14 and the actuating arm 17 in Figure 4B counterclockwise the slide 13 is moved against the force of the spring 32 in the closing direction.

The pendulum 14 can be formed integrally with the actuating arm 17 and a bearing which can be latched on the bearing receptacle 19.

In Figure 4B the support of an energy accumulator 30 in the form of a compression spring is also shown, which is fixed to a holder 31 on the housing 8 and biases the ejector element 10 in the opening direction.

In the Figures 6A and 6B a locking mechanism is shown on the housing 8, by means of which the ejector element 10 is locked when the force storage device 30 is tensioned. The latching mechanism comprises a guide track 20 formed on the housing 8, which is loop-shaped and comprises a first part 22 of a latching receptacle. A control element 21, in particular an angled wire, which is coupled to the ejector element 10, is guided on the guide track 20. In the Figures 6A and 6B the control element 21 is in a latched position in which a second part 23 of the latching receptacle is closed together with the first part 22 of the latching receptacle is. The second part 23 of the latching receptacle is integrally formed on the slide 13, so that the latching receptacle is formed in several parts.

If the user wants to open the movable furniture part from the closed position, the drawer is pushed in in the closing direction and moved into an overpressure position. As a result, the ejector element 10 also moves in the closing direction and also moves the second part 23 of the latching receptacle via the control element 21, as shown in FIG Figures 7A and 7B is shown. By moving the slide 13 against the force of the spring 32, the actuating arm 17 is also moved on the receptacle 18, and the pendulum 14 is pivoted in the closing direction. As a result, the connecting rod 40 is also pivoted, which ensures that the ejector unit 7 ′ is also unlocked if an unlocking movement was not carried out there at the same time. This ensures that both ejection units 7 and 7 'are unlocked in any case.

In the Figures 8A to 8C it is shown that a gap is formed between the first part 22 and the second part 23 of the latching receptacle, through which the control element 21 can escape in the opening direction. As a result, the ejector element 10 can be moved in the opening direction by the force of the energy store 30 in order to eject the movable furniture part. The second part 23 of the latching receptacle is latched in an open position, an arm 24 being latched for this purpose on a projection 25 of the housing 8 in which a tip 28 rests on the projection 25. As a result, the second part 23 of the latching receptacle remains in a position in which it is possible to drive through the control element 21.

If the movable furniture part is moved further in the opening direction, the second part 23 of the latching receptacle is unlocked, as shown in FIG Figure 9A is shown. An angled end section 26 of the control element 21 acts on a bevel 27 on the arm 24, which is pivoted as a result. This results in the arm 24 being pivoted so far that the tip 28 is removed from the projection 25, so that the arm 24 is now moved together with the slide 13 due to the force of the spring 32. The arm 24 is now supported with the tip 28 on a support 29, as shown in FIG Figure 10B is shown. The support 29 is arranged at a distance from the projection 25, the adjustment path of the arm 24 and the second part 23 of the latching receptacle being in the range between 1 mm and 3 mm, so that only short distances are present. When the tip 28 is supported on the support 29, the Locking receptacle back in the closed position, as shown in the Figures 6A and 6B is shown.

In Figure 11 the housing 8 is shown in the region of the guide track 20 without a control element. A loop-shaped guide track with the first part 22 of the latching receptacle is arranged integral with the housing 8, the channel 35 arranged on the right side being traversed in the opening direction and the channel arranged on the left side being traversed in the closing direction.

In the exemplary embodiment shown, the force is transmitted during unlocking via a linearly movable slide 13. It is also possible, instead of a linearly displaceable slide 13, to provide a pivotable lever or another actuating element in order to transmit an unlocking of the latching mechanism to the pendulum 14. Other locking mechanisms can also be used for an ejector unit 7 or 7 '.

List of reference symbols

1

Drawer

2

Front panel

3

Side frame

4th

Drawer slide

5

Fastener

6th

holder

7, 7 '

Ejection unit

8th

casing

9

Guideway

10

Ejector element

12

cartridge

13

Slider

14th

Pendulum

15th

Cones

16

Axis of rotation

17th

Operating arm

18th

admission

19th

Inventory

20th

Guideway

21st

Control

22nd

part

23

part

24

poor

25th

head Start

26th

End section

27

Ramp

28

top

29

Edition

30th

Energy storage

31

holder

32

feather

33

web

34

web

35

channel

40

Connecting rod

50

ground

Claims (14)

1. An ejection device for a movable furniture part (1), in particular a drawer, having a first ejection unit (7), which has a first ejector element (10), which is pre-tensioned by a first force accumulator (30), and is lockable in a tensioned position of the first force accumulator (30), and ejects the movable furniture part (1) in the opening direction upon unlocking, and a second ejection unit (7'), which has a second ejector element (10), which is pre-tensioned by a second force accumulator (30), and is lockable in a tensioned position of the second force accumulator (30), and ejects the movable furniture part (1) in the opening direction upon unlocking, wherein the first ejection unit (7) is synchronized with the second ejection unit (7') with respect to the unlocking via a coupling means, whereby the coupling means comprises at least one pivotably mounted pendulum (14), whereby each ejection unit (7, 7') comprises a pivotably mounted pendulum (14), whereby the coupling means has a connecting rod (40), which is connected to the two pendulums (14) spaced apart from an axis of rotation (16) of the two pendulums (14), characterized in that the pendulums (14) connected by the connecting rod (40) form an imaginary axis of rotation, to which the connecting rod (40) is pivoted at least approximately in parallel.
2. The ejection device according to Claim 1, characterized in that the axis of rotation (16) is arranged above the connecting rod (40) in the vertical direction.
3. The ejection device according to Claims 1 or 2, characterized in that the axis of rotation (16) is aligned essentially horizontally.
4. The ejection device according to any one of the preceding claims, characterized in that each ejection unit (7, 7') is unlockable by pressing in the movable furniture part (1) from the closed position into an overpressing position.
5. The ejection device according to any one of the preceding claims, characterized in that each ejection unit (7, 7') has a housing (8), on which a pendulum (14) is rotatably mounted.
6. The ejection device according to Claim 5, characterized in that one pendulum (14) is held in each case on the housing (8) on a bearing receptacle (19).
7. The ejection device according to any one of the preceding claims, characterized in that the pendulum (14) is connected to a slide (13) guided on a housing (8) or a pivot arm or another positioning element, such as a gearing assembly, by means of which a catch mechanism of the ejection unit (7, 7') is unlockable.
8. The ejection device according to any one of the preceding claims, characterized in that a looped guide path (20) for a control element (21) is formed on a housing (8) of a ejection unit (7, 7'), which control element is lockable on a catch receptacle of the guide path (20) with tensioned force accumulator (30).
9. The ejection device according to Claim 8, characterized in that the catch receptacle is formed in multiple parts having a first part (22) and a second part (23) movable in relation to the first part (22), and a second part (23) of the catch receptacle provided on a positioning element, in particular a slide (13), is movable indirectly or directly via the pendulum (14) for unlocking.
10. The ejection device according to any one of the preceding claims, characterized in that the pendulums (14) connected by the connecting rod (40), in the case of a triggering procedure of only one of the ejection devices (7, 7'), move the second part (23) of the catch receptacle at the other ejection device (7, 7') with assistance of the weight force of the connecting rod (40).
11. The ejection device according to any one of the preceding claims, characterized in that, on each housing (8) of a ejection unit (7, 7'), the ejector element (10) is guided on a curve guide, which is pre-tensioned by the force accumulator (30) in the opening direction.
12. The ejection device according to any one of the preceding claims, characterized in that each pendulum (14) has a length between 0.5 cm to 4 cm, in particular 0.8 cm to 2 cm.
13. The ejection device according to any one of the preceding claims, characterized in that the pendulum (14) is pivotable by an angle less than 90°, in particular less than 60°, for an unlocking procedure.
14. A piece of furniture or household appliance having at least one drawer (1), which can be ejected by an ejection device according to any one of the preceding claims.

Images