EP1430810B1 - Ejecting device - Google Patents

Abstract

Furniture with a body and a drawer comprises an ejector device having a first part (1) arranged on the body and a second part (2) arranged on the drawer or vice versa. The first part has a slide (3) loaded with an elastic force and interacting with the second part to hold the drawer in a holding position, especially when the drawer is closed, against the elastic force and on release to eject the drawer with the elastic force in the ejection direction (6). A catch mechanism is provided in which the slide is locked in the holding position so that for release it is unlocked reversibly from the holding position by sufficient force on the drawer. An Independent claim is also included for an ejector device for the above furniture.

Description

The present invention relates to a cabinet with body and drawer, in particular a cabinet with cabinet and drawer, and an ejection device for such a piece of furniture according to the preamble of the independent claims, see. GB-A-2 297 578 ,

An ejector on a piece of furniture helps a user to open the drawer. The user triggers the opening process by an action such as pulling on a handle. Then pushes the ejector with the help of a stretched elastic element the extract led by a certain distance from the furniture and are at the end of their work area the extract free. After release, the statement usually continues its movement a little further. When inserting the extract the elastic element is stretched in the ejector for the next opening operation again. In the retracted position, the extract is held by the ejection device.

Ejectors are already known in furniture. The first embodiments often worked with an elastic element between the drawer and the body. This elastic element connected the drawer to the body, which caused problems with the removal or insertion of the drawer. This major disadvantage of the mechanical coupling has been solved by the newer systems.

A decoupled ejection system was eg in the documents EP 1 127 514 A1 or US 3,854,785 disclosed. The opening process is triggered by the user by pressing on the aperture. By pressing, a spring-loaded pawl can rotate in the ejection device and release the likewise spring-loaded ejection mechanism. When the latch is a so-called touch-latch fitting, the inserted extract withheld tensioned spring. The ejection device has with the pawl and a slider at least two moving functional parts and needed for the proper expiration of the discharge two springs. The drawer can also be opened by pulling on the handle, but the latch of the ejector mechanism is only released when the shutter is pressed. It is a peculiarity of the Touch-Latch-fitting that is pressed at the aperture for opening at the aperture.

Instead of using the latch described above to keep the extract closed, a magnet is also used. The high demands on the magnet make the ejector more expensive.

The invention is to provide a cabinet with body and drawer with an ejection device, wherein the ejection device has a few functional parts and the extract can still open well or trigger. According to the invention, this object is solved by the features of claim 1.

A first part of the ejection device, which can be mounted both on the body as well as on the drawer, contains a slide acted upon by an elastic force. This slide cooperates with a second part which is arranged on the other furniture element. When the drawer is closed, the slide locks into a stable holding position. Only by a sufficient tensile force on the extract of the slide can be reversibly released from the holding position and the elastic force pushes the extract.

In this ejection device, only a single moving functional part, namely the slide, and an elastic element is necessary. The slider has a double function; he pushes out the extract and also holds the extract back when the elastic element is stretched. To open the drawer with the support of the ejector can be based on completely natural Be pulled on the extract. The pulling force on the pull-out can be set up, for example, with a foot pedal.

The invention further relates to an ejection device for such furniture, cf. Claim 13.

• Fig. 1 eine Ausstossvorrichtung in der eingerasteten Halteposition;
• Fig. 2 die Ausstossvorrichtung von Fig. 1 im Grundriss;
• Fig. 3 die Ausstossvorrichtung während dem Einstoss- oder Ausstossvorgang des Auszugs;
• Fig. 4 die Ausstossvorrichtung in der Auszugsposition; und
• Fig. 5 die Ausstossvorrichtung in einer Störfallposition.

Preferred embodiments of the invention will become apparent from the dependent claims and from the following description with reference to FIGS. Showing:

• Fig. 1 an ejection device in the latched holding position;
• Fig. 2 the ejection device of Fig. 1 in the floor plan;
• Fig. 3 the ejection device during the insertion or ejection process of the drawer;
• Fig. 4 the ejection device in the pull-out position; and
• Fig. 5 the ejection device in a hazardous location.

Based on Fig. 1 and 2 the construction of the ejector is shown. Fig. 1 shows the ejection device which is fastened to a furniture with a dormant body and a movable extension. The ejection device has a first part 1 and a second part 2. Either the first part 1 for mounting on the body and the second part 2 is provided on the drawer, or the first part 1 is provided for mounting on the drawer and the second part 2 on the body. For further considerations, we assume that the first part 1 is mounted on the bottom of the drawer and the second part 2 on the bottom of the body. In the in Fig. 1 shown holding position of the extract is inserted or closed, held in the tensile and shock direction and can be open to the viewer in the direction of arrow 6 forward.

In Fig. 2 the extract opens to the right. The first part 1 has a slider 3 acted upon by an elastic force. The elastic force acts on a pin 4 of the slider 3 and is through generates an elastic element. This element, such as a tension spring or an elastic band is not shown in the figures. It is attached to the pin 4 and to another pin 5. The pin 5 is attached to a housing part 7. The housing part 7 and a housing part 8 form a housing 9.

When the ejection device is in the holding position, the slider 3 is locked in a latching mechanism. The slide 3 can be reversibly disengaged from the latching mechanism by a sufficient tensile force on the drawer or on the slider 3.

A part of the slider 3, which lies outside the housing 9 in this example, cooperates with the second part 2. A short finger 10 and a long, wide finger 11 of the slider 3 hold a pin 12 of the second part 2, which is transverse to the support surface of the second part 2, in the ejection direction 6 and the opposite direction fixed. The ejection direction 6 is the direction in which moves the extract when opening. If the extract is opened, the housing 9 moves in the Fig. 2 to the right and the slide 3 remains in place. The slider 3 and the second part 2 are coupled with respect to a movement of the drawer in the holding position tensile and shock resistant. By this coupling of the slider 3 with the second part 2 of the extract is held in the holding position against the elastic force and when triggered the extract is ejected in the ejection direction with the elastic force in the ejection direction.

The slider 3 is guided on both sides of the slide 3 arranged runners 14, 15 in two cam tracks 13, which are arranged on the inside of the housing parts 7, 8 on both sides of the slider 3. These cam tracks 13 are in Fig. 2 dashed lines. In a first section 13, the cam tracks 13 are bent transversely to the ejection direction. In a second section they are substantially parallel to the ejection direction 6, and in a third section they face against an extension position towards a direction oblique to the ejection direction 6.

In the in Fig. 2 If the slide 3 tilts clockwise when entering the holding position, the elastic force is reduced, ie the pin 4 moves a little towards the pin 5. The slider 3 is thus continuously pulled or pressed by the elastic force in the first portion of the cam track 13 and the slider 3 is held in the holding position against the elastic force stable and positive fit.

Thus, the slide 3 with its runners 14, 15 together with the cam tracks 13 and the elastic element form a latching mechanism in which the slider 3 engages in the holding position. With sufficient tensile force in the ejection direction 6 on the extract or on the housing 9, the slide 3 tilts counterclockwise. By this tilting movement, the distance between the two pins 4, 5 increases again and the elastic force is increased. Thereafter, the sufficient tensile force overcomes the frictional force of the latching mechanism. If this Auflagereibkraft overcome, disengaged the slide 3 from the latching mechanism and pushes the extract.

In Fig. 3 the slide 3 is in the second section of the curved path. After disengagement, the elastic force pushes or pulls the slider 3 from the holding position in the direction of the pull-out position. Since the second part 2 is coupled to the slide 3, the extract is brought in the direction of a first position. In comparison to Fig. 2 the housing 9 was brought to the right relative to the second part 2.

In the Fig. 4 is the slide 3 after disengagement from the holding position, driven by the elastic force, transferred to the pull-out position and the extract was thereby brought into the first position. The slider 3 is against the extension position of the slider 3 out in the curved path 13 at an angle to the ejection direction. The slider 3 or the short finger 10 has retreated from the holding position to the pull-out position transversely to the ejection direction into the housing 9 and / or turned off, so that he has released the pin 12 of the second part 2 or no longer hindered when the extract is moved from the first position further in the ejection direction. The slide 3 remains in the extended position of the extension in the pull-out position.

The fingers 10, 11 on the slide 3 form a first coupling member, which cooperates with the pin 12 on the second part 2 as a second coupling member. When the first coupling member, a distance between the two fingers 10, 11 is provided for receiving the pin 12. The distance between the two fingers 10, 11 may be formed by an open or closed groove or a slot. In an alternative embodiment, the first coupling member may also be arranged on the second part 2 and the second coupling member on the slider 3. In the holding position of the pin 12 between the fingers 10, 11 and thus the pull-tensile and shock-resistant. In the pull-out position, the coupling member on slide 3, possibly also only the first finger 10, is pulled back and / or turned away from the coupling member on the second part 2 in such a way that it releases the coupling member on the second part 2. In a further embodiment, the first finger 10 is shorter than the second finger 11.

In an accident, it is conceivable that the extract was inserted too far into the carcass. In the FIG. 5 this malfunction is shown. The pin 12 is located behind or on the back of the long finger 11, which is usually remote from it. It can no longer be inserted properly into the gap between the fingers 10, 11, since the inlet of the gap on the other side of the long finger 11 located. To easily solve this accident, the pin 12 is configured such that the long finger 11 on the pin 12 in Expulsion direction 6 is movable past, but not against the ejection direction 6 when the pin 12 between the fingers 10, 11 is. This can be achieved by the long finger 11 and / or the pin 12 is mounted elastically displaceable. For example, the pin 12 may be resiliently mounted in its axial direction. In addition, the long finger 11 on one side and / or the pin 12 has a ramp.

The elastic force is generated by a tensile force generating element, such as a tension spring, an elastic band or a spiral spring, or by a pressure force generating element, such as a compression spring, a plate spring package, an air piston or sponge rubber. If a pressure element is used, it is in the Fig. 2 to 5 to the right of the slider 3. The elastic force acts on the slider 3 in the area of the pin 4.

The slider 3, the pin 4 and the rotor 14, 15 may be made in one piece or in one piece. The same applies to the housing part 7 and the pin 5. The housing part 7 and the pin 5 or the storage for the elastic element can also be integrated in the bottom of the drawer or in the body. The curved path 13 can also be integrated in the drawer or body.

In the figures, a substantially rectilinear movement of the slider 3 is shown. This movement may also be arcuate, i. the slider rotates e.g. around an axis. Especially in this design, the housing part 8 can also be omitted since the slider 3 can be held and guided in the axis of rotation. If the housing part 7 is only on one side of the slider 3 or integrated in the furniture, the runners 14, 15 are expediently only on one side of the slider attached. Even if the housing 9 extends on both sides of the slider 3, it is possible to mount runners 14, 15 on only one side.

In Fig. 2 the rotor 15 is engaged in the holding position in the offsets. Additionally or alternatively The pin 14 can also engage in recesses which are arranged on the other side of the cam tracks 13. The shape of the runners 14, 15 can be designed in various ways, the two round runners 14, 15 shown is one possibility. It can also be used on both sides elongated webs or oval pins. The cam tracks 13 and the latching mechanism are designed accordingly, so that the movement of the slider 3 is ensured. The offsets and recesses in the guideways 13 are interpreted according to the shape of the rotor 14, 15 and are designed depending on the desired frictional force.

To eject the extract, the cam tracks 13 may be guided parallel to the direction of ejection in the second section 6 and extend in the third section against the extension position obliquely to the ejection direction 6, as shown in the figures. Another possibility is to guide the curved paths 13 in the second and third sections obliquely to the ejection direction 6. For the release of the second part 2 can be rotated or pivoted in an analogous manner as in the holding position of the slide 3 in the extension position additionally or alternatively to retract by means of crankcases on the curved paths 13.

The second part 2 has a relatively simple structure. Instead of an independent part for the second part 2 may also be an existing part of the drawer or the body into consideration, namely the often slightly projecting rear wall of the extract the pen 12 replaces. Accordingly, the coupling member must be designed on the slider 3.

The ejection device can be arranged not only below the suit but also on the side of the drawer. Suitably, this arrangement appears in wide heavy drawers, in which two ejection devices are used, but also in superposed separations.

The application of the ejection device is not limited to extracts. Swiveling parts such as doors or flaps on furniture can also be pushed open and are to be understood as extracts within the scope of the claims. In this case, the second part 2 may also comprise a rod guided by the slide, which is rotatably mounted on the rotating part, or a joint of a linkage between the body and the pivoting part.

In the embodiments shown so far, the second part 2 has been released in the pull-out position of the slide 3 so that the pull-out can continue to move freely. However, it is also conceivable that the second part 2 remains coupled to the slide 3 over the entire movement of the drawer.

Further, in the previous embodiments, the latching mechanism was formed by the slider 3 with the Läu-Fern 14, 15, the cam tracks 13 and the elastic member. It is also conceivable that the cam tracks 13 are not bent in the first section and that, for example, a leaf spring is provided which projects into the cam track and forms a detent for the pin 15.
In summary, an ejection device has been shown by means of which the opening of an extract, a door or a flap of a piece of furniture is supported. The impacted by a pushing force slide 3 is held in a latching mechanism. By a sufficient tensile force on the extract of the slide 3 is reversible, ie without destroying the device, disengaged from the latching mechanism and the extract is ejected.

Claims (13)

1. Furniture with corpus and pull-out component, in particular furniture with corpus and drawer, with an ejector that has a first and a second part, wherein the first part (1) is arranged at the corpus and the second part (2) at the pull-out component or the second part is arranged at the corpus and the first part at the pull-out component, wherein the first part comprises a slider (3) that is exposed to an elastic force and that engages with the second part to hold the pull-out component in a holding position, in particular with a closed pull-out component, against the elastic force and to eject the pull-out component with the elastic force in the direction of ejection (6) on triggering, wherein a locking mechanism is provided, into which the slide locks such into place in the holding position that it is for the triggering reversibly releasable from the holding position by sufficient pulling force on the pull-out component, characterized in that in the holding position the slider (3) and the second part (2) are high-tensily and shockproofly coupled with each other with respect to a movement of the pull-out component, wherein a first and a second coupling member (10, 11; 12) are provided, wherein the first coupling member (10, 11) is arranged at the slider (3) and the second coupling member (12) at the second part (2) or the first coupling member is arranged at the second part and the second coupling member at the slider, and wherein the first coupling member has a first and a second finger (10, 11), between which is provided a gap for receiving the second coupling member, and wherein in the holding position the second coupling member (12) is held high-tensily and shockproofly between the fingers.
2. Furniture with corpus and pull-out component according to claim 1, wherein the slider (3) is guided such that it tilts such when entering the holding position that the elastic force is reduced.
3. Furniture with corpus and pull-out component according to one of the claims 1 or 2, wherein the slider (3) is guided by at least one cam track (13), and wherein the slider can be locked into place in a first section of the cam track and can be moved in a second section basically in the direction of ejection (6).
4. Furniture with corpus and pull-out component according to claim 3, wherein the cam track (13) has a third section that runs slopingly against the direction of ejection (6) towards a pull-out position of the slider (3).
5. Furniture with corpus and pull-out component with corpus and pull-out component according to claim 3 or 4, wherein there is at least one runner (14, 15) provided at the slider (3), that is guided in the cam track (13) and locks into place in the holding position.
6. Furniture with corpus and pull-out component according to one of the claims 1 to 5, characterized in that the slider (3) in the holding position is held positive-fittingly in the locking mechanism against the elastic force.
7. Furniture with corpus and pull-out component according to one of the claims 1 to 6, wherein in the holding position by a sufficient pulling force on the pull-out component the slider (3) is tilted, the elastic force is increased and thereafter, if applicable, a rest friction force at the locking mechanism is overcome and thereby the slider unlatches from the holding position.
8. Furniture with corpus and pull-out component according to one of the claims 1 to 7, wherein the slider (3) after the unlatching from the holding position driven by an elastic force passes into a pull-out position and thereby brings the pull-out component into a first position and releases it in the direction of ejection, such that the pull-out component can be moved from the first position without movement of the slider further in the direction of ejection.
9. Furniture with corpus and pull-out component according to one of the preceding claims, wherein in the pull-out position the coupling member at the slider (3) is retracted and/or turned so far with respect to the coupling member at the second part (2), that it releases the coupling member at the second part (2), and in particular that the first finger (10) is shorter than the second finger (11).
10. Furniture with corpus and pull-out component according to one of the preceding claims, wherein the second finger (11) and the second coupling member are designed such that the second coupling member can moved in the direction of ejection past the second finger, but not against the direction of ejection (6), and in particular that the second finger and/or the second coupling member can be moved elastically and that the second finger and/or the second coupling member comprise a running-up ramp.
11. Furniture with corpus and pull-out component according to one of the claims 1 to 10, wherein the slider (3) is designed such that it retracts and/or turns transversely to the direction of ejection (6) of the second part (2) against a pull-out position of the slider.
12. Furniture with corpus and pull-out component according to one of the claims 1 to 11, wherein the elastic force is generated by a tension generating element, in particular a tension spring, or by a pressure generating element.
13. Ejector for a furniture with a corpus and a pull-out component according to one of the claims 1 to 12, comprising a first and a second part, wherein the frist part (1) is provided for mounting on the corpus and the second part (2) at the pull-out component or the second part is provided at the corpus and the first part for mounting on the pull-out component, wherein the first part has a slider (3) that is exposed to an elastic force and that is formed to engage with the second part to hold the pull-out component in a holding position against the elastic force and to eject the pull-out component with the elastic force in a direction of ejection on triggering, wherein a locking mechanism is provided, in which the slider locks such into place in the holding position that it for triggering can be reversibly unlatched from the holding position by a sufficient pulling force on the pull-out component, characterized in that in the holding position the slider (3) and the second part (2) are high-tensily and shockproofly coupled with each other with respect to a movement of the pull-out component, wherein a first and a second coupling member (10, 11; 12) are provided, wherein the first coupling member (10, 11) is arranged at the slider (3) and the second coupling member (12) at the second part (2) or the first coupling member is arranged at the second part and the second coupling member at the slider, and wherein the first coupling member has a first and a second finger (10, 11), between which is provided a gap for receiving the second coupling member, and wherein in the holding position the second coupling member (12) is held high-tensily and shockproofly between the fingers.

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