EP2587964B1 - Mechanically damped catch - Google Patents

Description

The invention relates to a device with an ejection device according to the preamble of claim 1 and a piece of furniture with such a device.

was standing of the technology

Various touch-latch systems are known from the prior art, in which by tapping the front of a movable furniture part, whereby the movable furniture part engages, a discharge operation of the movable furniture part is triggered by, for example, several centimeters.

These touch-latch systems include an energy storage, which is usually charged when closing the movable furniture part.

In addition, a number of electrical solutions are known in the art. In one embodiment, for example, a drawer can be fully extended via an electric drive and brought back into a closed state. For this it is only necessary to tap the front of the drawer. A slight shift of the drawer caused thereby is registered by the control and causes in the closed state, an opening of the drawer and in the open state, a closing of the drawer.

Task and Priors of the invention

The invention has for its object to provide a device with an ejector of the type described in the introduction, which has a relatively high ease of use.

This object is solved by the features of claim 1. In the dependent claims advantageous and preferred embodiments are given.

The invention is based on a device with an ejection device, which in a mounted state on a furniture exerts a force on a furniture movably guided on the furniture part in the opening direction, and has a force storage device for moving the movable furniture part and a charging mechanism for the energy storage ,

The essence of the invention is that the ejection device is designed with power storage for attachment to the movably guided furniture part. The known embodiments, for example, according to the touch-latch principle, a movable furniture part, for example, a drawer eject, are arranged on a furniture body, which exert a force effect on a guided movable furniture part when ejecting, but remain stationary on the furniture body. By attaching the ejection device on the movably guided furniture part results in particular advantages to recharge the energy storage of the ejector. For this purpose, in principle can be used in a mounting on the movably guided furniture part of the entire path of movement of a movably guided furniture part.

Does not happen a charge of the energy storage to the end a closing operation of the movably guided furniture part, can be combined with the device according to the invention an automatic feed, in which, although the ejection function, the furniture part is pulled from a predetermined closing position in the fully closed state. Such automatic retraction is preferably tuned to the energy storage of the device according to the invention that the energy storage when ejecting the movably guided furniture part charges another energy storage automatic retraction, which then just before the closed position provides the necessary energy to the movably guided furniture part in the complete to move closed state.

According to the invention, the ejection device comprises a pivot arm, which is supported on a fixed part of the furniture when ejecting the movable furniture part in the opening direction. The swivel arm can repel, for example, on a furniture body, in particular on its rear wall or on a permanently mounted element. As a result, the movably guided furniture part is preferably pushed open by several centimeters, for example 4-10 cm. It is also conceivable to open the drawer completely. For a desired power transmission, the ejection device preferably comprises a transmission. The transmission can be driven via a drive element, in particular a tension element. As tension elements, for example, timing belt, V-belt or chains are conceivable.

The tension element is preferably connected to the energy storage, so that it is driven by the energy storage.

For example, a power-driven toothed belt moves the gear that sets the swivel arm in motion for ejection.

According to the invention the ejection device comprises a control lever with which the energy storage device can be charged during a movement of the movable furniture part in the closing direction.

The charging of the energy accumulator during a movement of the movable furniture part in the closing direction via a control lever. The control lever can be used to determine in which section of a closing movement the charging of the energy accumulator should take place. The control lever preferably cooperates in a mounted state of the device in a movement in the closing direction with a blocking element, on which the control lever is present during a closing movement and thereby charging of the energy accumulator is effected.

In order to ensure a clear positioning of the control lever to a blocking element, it is further proposed that the control lever is guided along guide means on the ejection device.

In order to prevent an immediate discharge of the energy storage takes place in a partially charged charge of the energy accumulator and a subsequent opening movement, it is further proposed that the ejection device comprises a locking device, which during or after contact of the control lever on the blocking element movement of the Control lever along a charging direction prevented. Thus, any intermediate state of a charging process of the energy storage can be "saved" so to speak. In a continued closing operation can be based on the intermediate charging state, the charging of the energy storage then complete.

In a further particularly preferred embodiment of the invention, the blocking element is designed such that it does not act on the control lever in a movement of the ejection device in the opening direction. The blocking element works, for example, during a movement of the ejection device in the opening direction to a state in which the Ejector can easily pass it. As a result, an ejection process is not hindered by the blocking element, yet it can be ensured that in a subsequent closing movement, the blocking element stops the control lever until the ejection device is transferred via the control lever in a fully charged state.

Furthermore, it is preferred if the latching device comprises a latching contour, for example a toothed section, along which the control lever moves in a contact with the blocking element and a movement of the movable furniture part in the closing direction, wherein the control lever is formed a locking member, the only one Movement of the control lever in the direction of charging allows. If the control lever wants to move in a closing direction, the latching member engages in the latching contour, whereby an intermediate storage of a charging process is made possible.

Preferably, a parking position is provided on the ejection device for the control lever, which occupies the control lever at a fully charged energy storage when the ejector is not triggered. Preferably, the control lever, as soon as he has taken the parking position, move past the locking element, so that a further closing operation of the movable furniture element is not hindered by the blocking element. Rather, a further closing operation can be taken over by a automatic retraction, which ensures that, in particular damped, the movable furniture part is transferred into the closed state.

In a further particularly preferred embodiment of the invention, the control lever via a release mechanism from the parking position in a release position can be transferred, in which the energy storage drives the pivot arm for ejecting the movable furniture part. The triggering mechanism can be activated, for example, by tapping the furniture part and an associated positional displacement of the furniture part, in particular in a still further closed state. The charging mechanism includes, for example, a push rod that moves the pivot lever out of a parked position so that it then moves, for example along a guide driven by the tension member, wherein the pivot lever is pivoted.

In a further preferred embodiment, the energy accumulator comprises a tension spring. The tension spring preferably drives the tension element, which in turn acts on the transmission, with which the pivot lever is coupled. The tension spring is guided in particular folded to realize a long travel compact.

The locking element which cooperates with the control lever is preferably provided for mounting on a fixed part of the furniture. For example, the blocking element is intended to be mounted on the furniture element, that already in the first third of a closing movement, a charge of the energy storage takes place.

drawings

Figur 1

in einer perspektivischen Teilansicht eine Vorrichtung mit Auswurfeinrichtung an einem Schubladenboden bzw. einer Korpuswand angebracht in einer Ansicht von unten,

Figur 2

die in Figur 1 dargestellten Elemente in einer Ansicht von oben ebenfalls in perspektivischer Darstellung,

Figur 3

die Vorrichtung mit Auswurfeinrichtung in einer Ansicht von oben in Ausgangsposition ohne Schublade,

Figur 4

eine zu Figur 3 vergleichbare Darstellung, bei welcher ein Steuerhebel ausgelöst ist,

Figur 5

eine vergrößerte Darstellung in Draufsicht eines Teils einer Führung des Steuerhebels und des Steuerhebels,

Figur 6

eine zu den Figuren 3 und 4 vergleichbare Darstellung, in einem Ausstoßzustand,

Figur 7

der in Figur 6 dargestellte Zustand in Draufsicht mit angeordneter Schublade, die teilweise dargestellt ist,

Figur 8 und 9

zwei Ansichten von unten mit schematisch angedeuteter Schublade für einen Zustand, bei welchem ein Steuerhebel an einer Sperrklinke gerade vorbei geführt wird (Figur 8) bzw. in einer vollständig ausgefahrenen Position der Schublade (Figur 9),

Figur 10

eine zu den Figuren 8 und 9 vergleichbare Unteransicht, in einem Zustand, in welchem beim Einschieben ein Steuerhebel an einer Sperrklinke ansteht,

Figur 11

der in Figur 10 mit A gekennzeichnete Ausschnitt in vergrößerter Darstellung und

Figur 12

eine zu den Figuren 8, 9 sowie 10 vergleichbare Darstellung von unten für eine vollständig aufgeladene Auswurfeinrichtung.

An embodiment of the invention is illustrated in the drawings and will be explained in more detail with further details and advantages. Show it:

FIG. 1

in a perspective partial view of a device with ejection device attached to a drawer bottom or a body wall in a view from below,

FIG. 2

in the FIG. 1 illustrated elements in a top view also in perspective view,

FIG. 3

the device with ejection device in a view from above in the starting position without drawer,

FIG. 4

one too FIG. 3 comparable representation in which a control lever is triggered,

FIG. 5

an enlarged view in plan view of part of a guide of the control lever and the control lever,

FIG. 6

one to the FIGS. 3 and 4 comparable representation, in an ejection state,

FIG. 7

the in FIG. 6 illustrated state in plan view with arranged drawer, which is partially shown

FIGS. 8 and 9

two views from below with schematically indicated drawer for a state in which a control lever is guided past a pawl just ( FIG. 8 ) or in a fully extended position of the drawer ( FIG. 9 )

FIG. 10

one to the FIGS. 8 and 9 comparable bottom view, in a state in which a control lever is present at a pawl during insertion,

FIG. 11

the in FIG. 10 with A marked cutout in an enlarged view and

FIG. 12

one to the FIGS. 8, 9 and 10 comparable bottom view for a fully charged ejector.

description of embodiment

In FIG. 1 a device 1 according to the invention with ejector 2 and a mounting member 5 on a drawer 3 and a cabinet wall 4 of a piece of furniture only partially shown in a perspective view from below.

On the body wall 4, the mounting member 5 and the drawer 3, the ejector 2 is mounted, which has to fulfill various functions. At the opening end of the mounting member 5, a pawl is pivotally mounted about an axis 7, in a manner that a spring 8 always moves the pawl to an initial position, as in FIG FIG. 1 shown, pulls. Furthermore, the mounting member 5 comprises a pressure roller 9, which receives the ejector 2 when retracting the drawer 3 and leads. In addition, a stop portion 10 is provided on the mounting member 5, on which a spring 11 via a resiliently guided release rod 12 abuts (see in particular FIGS. 3, 4 and 6).

The ejection device 2 comprises a housing element 13, which is screwed onto a drawer bottom 14 of the drawer 3 via screws 15 in the exemplary embodiment. In the housing element, a control lever 16 is provided, which can move out in a gate 17.

In addition, a gear assembly 18 is accommodated on a pivot arm 19 (see in particular FIG. 2 ) acts.

When triggered ejector 2, the pivot arm presses in a pivoting movement of a contact portion 20 of the mounting member 5, which is firmly connected to the furniture body. Thereby, the drawer 3 in the direction of arrow 21, that is ejected in the opening direction.

A starting position is in FIG. 3 shown. A over a roller 22 deflected tension spring 23 pulls on a toothed belt 24, which is wrapped around a pinion 25 of the gear assembly 18. By the train on the toothed belt 24 of the control lever 16 is held in the gate 17 in a parked position in which one of guide pins 26, 27 on the one hand in a linear portion 28, but on the other hand in an angled portion 29 superimposed, so that although a tensile force on the timing belt 24 of the control lever 16, this position shown, in which the guide pin 26 is present in the angled portion 29 at its end is pulled. If the drawer 3 is tapped on, for example, its front (not shown) and thereby inserted, push the trigger bar 12, which abuts on the stop portion 10, the control lever 16 from its parking position, whereby the bolt 26 is transferred into the linear section 28 of the link 17 with the result that the control lever 16 can be pulled over the toothed belt 24 along the linear portion 28 to an end portion 30. By the movement of the toothed belt 24, the pinion 24 transmits the rotary motion to the pivot arm 19 via an additional pinion 31 located therebetween and a smaller pinion 32 disposed thereon.

As a result, the swivel arm 19 is pivoted in a reduced position until it reaches a maximum position FIG. 6 and pushes the drawer into an open state. The pivot arm 19 abuts against the abutment portion 20 of the mounting member 5. In FIG. 7 is a view from above for this process apparent.

During a movement in the opening direction 21, the control lever 16 passes the pawl 6, which, however, folds back in this direction and thus allows the ejection device 2 to pass unhindered (see FIG. 8 ). This process ends according to FIG. 9 in the fully extended state of the drawer.

The ejection force can be adjusted so that the drawer almost reaches the fully extended state or the extended state. However, it is also conceivable only a partial ejection of the drawer, which can then be completed manually by an operator. Inserting the drawer from the fully opened Position is done by a manual operation of an operator.

The insertion process is initially unhindered until the control lever 16 meets the pawl 6 (see FIG. 10 ).

In this state, the control lever 16 abuts on the pawl 6, whereby the control lever 16 is displaced along the link 17 from an end portion 30 to the angled portion 29 during a movement in the closing direction 33. In this case, the tension spring 23 stretches.

The pawl 6 is not located directly on a base body 34 (see in particular FIG. 11 ), but via a curved spring 35. This spring 35 is pressed upon engagement of the pawl 6 to a toothing 36 which extends along the ejector on the housing element 13 as the gate 17.

This has the consequence that is not retracted in a discharged position at the end portion 30 at a termination of the insertion movement by manual operation of the control lever, but locked in the toothing 36 at the "Abbruchposition" or at least in its vicinity. The intermediate charging state is stored with it so to speak.

With continued manual insertion of the drawer and the charging of the ejector, that is, the tensioning of the tension spring 23 is continued. The charging process is completed when the locking lever 6 according to FIG. 12 has transferred the control lever in its parking position, in which the guide pin 26 is located in the angled portion 29 of the link 17 and is urged by the tension on the timing belt 24 even further in this position.

In this position, the ejector 2 is fully charged and the control lever 16 is completely folded.

From a position according to FIG. 12 during a closing process in Closing direction 33, an automatic catch mechanism "catch" the drawer 3 and pull attenuated in the fully closed position. An energy accumulator of the automatic retraction is preferably charged by the tensile force of the tension spring 23 when the drawer 3 is ejected. The conveying forces are advantageously coordinated.

When unloading the tension spring 23 with activated control lever 16, this slides according to FIG. 5 unhindered along the teeth 36 with lifted spring 35th

By the device according to the invention with ejection device, it is possible not only to eject a drawer, but also to draw damped in the end position. The device can be used not only for drawers, but other movably guided furniture parts as well. For example, for a closet door.

LIST OF REFERENCE NUMBERS

1

contraption

2

ejection means

3

drawer

4

corpus

5

mounting element

6

pawl

7

axis

8th

feather

9

pressure roller

10

stop section

11

feather

12

release rod

13

housing element

14

drawer base

15

screw

16

control lever

17

scenery

18

transmission assembly

19

swivel arm

20

contact section

21

opening direction

22

role

23

mainspring

24

toothed belt

25

pinion

26

division bolts

27

division bolts

28

rear section

29

angled section

30

end

31

pinion

32

pinion

33

closing direction

34

body

35

feather

36

gearing

Claims (14)

1. Device (1) comprising an ejection device (2), which in an assembled state on an item of furniture exerts force on a furniture part (3) guided movably on the item of furniture in its opening direction (21), with an energy storage mechanism (23) for moving the movable furniture part (3) and a loading mechanism for the energy storage mechanism, wherein the ejection device (2) is set up with an energy storage mechanism (23) for attaching to a movably guided furniture part (3), and wherein the ejection device comprises a pivot arm (19) which is supported on a fixed part (20) of the item of furniture during the ejection of the movable furniture part in opening direction (21), characterised in that the ejection device comprises a control lever (16), by means of which the energy storage mechanism (23) can be charged during a movement of the movable furniture part (3) in closing direction (33).
2. Device according to claim 1, characterised in that the ejection device (2) comprises a gear (18).
3. Device according to claim 2, characterised in that the gear (18) is driven by a drive element, in particular a tension element (24).
4. Device according to claim 3, characterised in that the drive element is driven by an energy storage mechanism (23).
5. Device according to one of the preceding claims, characterised in that the control lever (16) in a mounted state of the device during a movement preferably in closing direction (33) bears against a locking element (6), whereby the loading of the energy storage mechanism takes place during the closing movement.
6. Device according to one of the preceding claims, characterised in that the control lever (16) is guided along guiding means (17) on the ejection device (2).
7. Device according to one of the preceding claims, characterised in that the ejection device (2) comprises a locking device (36), which when the control lever (16) bears on the locking element (6) prevents the movement of the control lever (16) opposite a loading direction.
8. Device according to one of the preceding claims, characterised in that the locking element (6) is set up such that during a movement of the ejection device (2) in opening direction (21) it does not act on the control lever (16).
9. Device according to one of the preceding claims, characterised in that the locking device has a locking contour (36), along which the control lever (16) moves when bearing on the locking element (6) and during a movement of the movable furniture part (3) in closing direction (33), wherein on the control lever (16) a locking member (35) is formed which only allows the movement of the control lever (16) in loading direction.
10. Device according to one of the preceding claims, characterised in that on the ejection device (2) for the control lever (16) a park position is provided which the control lever (16) enters into with a loaded energy storage mechanism when the ejection device (2) is not actuated.
11. Device according to one of the preceding claims, characterised in that the control lever (16) can be moved by means of a release mechanism (12) from the park position to a release position in which the energy storage mechanism actuates the pivot arm (19) to eject the movable furniture part (3).
12. Device according to one of the preceding claims, characterised in that the energy storage mechanism comprises a tension spring (23).
13. Device according to one of the preceding claims, characterised in that the locking element (6) is provided for assembly on a fixed part (4) of the item of furniture.
14. Item of furniture comprising a device according to one of the preceding claims.

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