DE202007006687U1 - Ejection device for movable furniture parts - Google Patents

Abstract

ejector for a movable furniture part, in particular a rotatable door, a piece of furniture, the one furniture body (1) with at least one wall (2) or several walls (2 to 6), characterized in that the ejection device is designed such that it can be integrated into one of the walls (2 to 6) of the furniture is.

Description

The The invention relates to an ejection device for a movable furniture part, especially a door, according to the preamble of claim 1 and a piece of furniture with such an ejection device.

electromotive ejector for hinged doors on furniture known in itself. The known solutions are however for a practical use little suitable because they have a relatively large amount of space claim and the look of the furniture, on which they are mounted, severely impair.

The solution This problem is a first object of the invention.

The Invention solves This object is achieved by the subject matter of claim 1. It creates also a furniture claim 43 - with such ejection device or with an ejector after one of the rest Claims.

advantageous Embodiments of the invention are the dependent claims remove.

The inventive ejection device builds so flat that it is suitable for being mounted in a furniture wall.

The The invention also provides the subject matter of claims 29, 30 and 31 and the related back Claims, on the one hand relate to advantageous embodiments of claim 1 but also more independent ones Inventions, their tasks and advantages are like the advantages of the subclaims itself from the description of the figures.

following The invention will be described with reference to the drawing based on embodiments described in more detail. It shows:

1 a perspective view of a furniture body without door and with a bottom surface shown without surface elements, which is provided with an ejection device;

2 a perspective view of the ejection device 1 ;

3 a perspective view of an illustrated without surface elements furniture floor wall with the ejection device 1 and 2 with mounting board in a light floor;

4 a view of the furniture body without lower surface element from below with the ejection device 1 to 3 in slightly open position without mounting plate;

5 an excerpt from 4 ;

6 the arrangement 5 in a further open position;

7 a plan view of a second ejection device without the upper mounting board; and

8th a view of another ejector without mounting board;

9 - 11 schematic representations of variants of actuator elements for the ejection devices from 1 to 8th ; and

12 a perspective view of another ejection device.

1 shows a perspective view of an exemplary box-shaped furniture body 1 with several walls, here exemplified serving as a bottom floor wall 2 , a top or top wall 3 , two side walls, 4 . 5 and a back wall 6 include.

The walls 2 - 6 are preferably oriented at right angles to each other, wherein the bottom wall 2 and the top wall 3 usually horizontal and the side walls 3 . 4 as well as the back wall 6 are vertically aligned.

The thus open to one side furniture body is with a movable furniture part, a revolving door 7 , in the 4 lockable on at least one or more single or multi-axis hinge (s) 8th (in 4 partially visible) about a - usually vertically aligned - fixed or in space moving (in any case theoretically existing) pivot axis D pivoted and can be opened and closed.

The hinges 8th can be formed almost arbitrarily. Preferably hinges are used, which are designed to be damped and preferably the movement of the door 7 towards the closed and / or maximum open position, in particular from an opening angle position of 40 ° to 50 °, dampen.

To the door 7 from its closed position (not shown here) to move to an open position, is on the furniture body 1 an ejector 9 arranged, which has a drive section with a housing 10 and a relative to the housing 10 having movable actuator element. The actuator element, here a plunger 11 , is designed to be at ei ner movement from a first to a second position to move the movable furniture part, ie here the door 7 to push or push, causing the door 7 is pivoted about the rotational axis D from the closed position to an open position or position.

The ejection device 1 - see in particular their exemplary structure 2 and 5 - Is preferably advantageously designed so that its thickness or height h is not greater than the thickness of the receiving wall, in 1 as the thickness d of the bottom wall 2 ,

Thus, it is possible to realize in the vertical direction a height h of less than 20 mm, for example, a height h of 19 mm, so that the ejector 1 directly into a corresponding recess of a correspondingly designed or dimensioned bottom wall 2 is integrable.

For this it is advantageous if as a bottom wall 2 a wall element with a preferably circumferential mounting frame 19 is used from a plurality of assembled together single profile elements, which is designed to at least one or preferably a respective lower and an upper transparent or non-transparent disc-shaped cover plate z. B. of wood, glass, plastic and / or metal (not visible here), wherein between these cover plates a flat receiving space is formed, in which the ejection device 9 can be used and in which it is mountable. In / At the receiving space between the cover plates (often called honeycomb plate) and lighting elements for illuminating the furniture interior and / or outer space can be provided.

In a corresponding not completely transparent design of the cover plates, the ejection device is not or not appreciably visible from the outside. The mounting frame 19 (please refer 1 and 3 ) has a bore or punched hole on its side facing the door 12 on, which is the free end of the actuator element, here the plunger 11 , at least in the open position interspersed.

The ejection device 11 can on the inner circumference of the surrounding mounting frame 19 can be mounted in any way, so with screws z. B. on mounting screws 29 (Embodiment of the 8th ) or by means of a locking device (not shown here).

Such is an ejector 1 realized, which is integrated directly into the bottom wall and thus affects the view of the furniture neither in the open or in the closed state, as of essentially only one acting on the door end portion of the plunger 11 and possibly a portion of a separate sensor element is visible.

Preferably, the ejection device responds to tension or pressure on the furniture door so that it is possible to pull it by a light pull on the door 7 or tapping the door 7 to activate from the outside.

To realize this functionality, a sensor element 20 be used, which is mounted on the furniture, that with him a slight pressure on the outside of the door is sensed, as it is generated for example by tapping the door.

It is expedient that of the sensor element 20 signal delivered when pressurized to be used as a control signal, for example, one in the ejection device 1 integrated control device is supplied, which activates the ejection device when a certain threshold value is exceeded, so that the plunger 11 extends and opens the door.

The sensor element 20 For example, with an end region also through a hole 21 of the mounting frame 19 in the direction of the door 7 protrude. At the door 7 a correspondingly sensible element can be arranged (not shown here).

Appropriate appears the use of an electrical / electronic, z. B. capacitive, designed sensor device, which is designed to control the movement of the door (or a sensible door attached to the door) Elementes) relative to a sensor element on the furniture body to sense.

One simply tapping the door enough then to the ejector to activate, so that the door opens. This makes it possible to get one handle-free revolving door furniture, for example for the Kitchen area too create.

The 1 to 6 show a first ejector.

The housing 10 this ejection device has two lateral - here in cross-section T-shaped - profiles 22 . 23 on whose base leg on both sides support areas for two mutually spaced mounting plates or boards 24 . 25 form, between which in particular the actual drive elements of the ejection device are mounted. Such mounting boards are also in the embodiments of the 7 and 8th used where instead of the profiles 22 . 23 also other spacers for the mounting boards 24 . 25 can be used

At the profiles 22 . 23 can drill holes 26 for attaching fasteners or for mounting on the furniture body, in particular on the mounting frame 19 the ejection device receiving furniture wall 2 be formed.

The housing 10 the drive device is preferably flush with the mounting frame 19 at.

The mounting boards 24 . 25 are used in particular for mounting the actual drive elements of the drive device, which also protect them from damage to the outside.

The Drive device may in a preferred embodiment of an electromechanical Have drive unit or alternatively also an electromagnetic Drive unit. Alternatively, it may also be a drive device with an energy storage such as a spring or a hydraulic cylinder wherein these devices are tensioned when closing the door and wherein they release their energy the door over that Release actuator element. With a spring as drive (not here shown) a purely mechanical solution is realized.

The drive elements of the drive device here include a compact or small-sized electric motor 13 (See also the embodiments of the 7 and 8th ), which has a drive screw 14 with a preferably non-self-locking pitch on its output shaft to a gearbox, here a multi-stage gear transmission 15 acts. This has several translation stages 15a . 15b . 15c which are each formed of intermeshing gear arrangements, of which the last gear 16 has on its outer circumference a segment toothing and on a radius R to the axis of rotation of the segment gear 16 an axially extending pin 17 , which in a preferably parallel to the closed door or perpendicular to the main extension direction of the plunger 11 in the closed state of the door extending backdrop 18 engages with the pestle 11 connected is.

Will the segment gear 16 due to rotations of the electric motor 11 turned, the pen turns 17 on its radius on the segment gear 16 With. As a result, he takes the scenery 18 with, being the pen 17 also in the scenery 18 shifts, so with the backdrop 18 the one at the door 7 attacking or fixed pestles 11 is linearly moved so that it moves in one direction of rotation of the segment gear 16 the door 7 regurgitates.

Such is the ram 11 move in and out, the door when extending 7 (see 4 and 6 ). The closing of the door 7 is preferably done manually, ie, the plunger is z. B. after opening the door 7 recovered. It is also conceivable, however, that closing the door 7 via an appropriately sized drive device also make electromotive and pull back the door with the plunger, but then at the door 7 is set accordingly. The closing process of the door can be supported 7 by a further closing device, so from acting at least over a certain angle closing spring in the hinge 8th (not shown in detail here)

The embodiment of 7 is different from that of 1 to 6 in that, instead of a linearly movable plunger as actuator element for regurgitation of the door on the segment gear 16 arranged - here radially from the segment gear 16 outwardly projecting lever element 27 (here at the free end with a roll 28 provided) is used - that from a pivoted position through a corresponding opening in the mounting frame 19 (the latter in this figure not shown) first against the door 7 is pivotable, whereupon it further rotates the segment gear 16 from the inside against the door 7 press and this opens.

Also this ejection device 1 builds flat. But it needs a slightly larger opening in the mounting frame 19 , so that the rotary lever element 17 can be pivoted accordingly.

In the closed state, the actuator element is preferably moved in such a pivoted or retracted position that it is not on the closed door 7 is applied.

Not shown in the figures is the control device for controlling the ejection device 1 , which is preferably provided with a microprocessor and also between the mounting boards 24 . 25 can be accommodated.

Conceivable it is to design the control device remotely controllable. It is also conceivable to interpret them to a certain extent as "self-learning" and "self-diagnosing", so that she at the furniture z. B. even the position of the stop of the actuator, the drive over Swing angle on the door determined and to a certain extent detects and indicates disturbances, z. B. optically to an LED "fault" (not shown here)

7 shows a variant in which a sensor device 48 with in the housing 10 is integrated, with an extendable sensor element 49 (or a sensor tip), whose or their travel is sensed, from the housing 10 direction the door is moved back and forth, which offers the advantage that easily the back and the return movement can be distinguished and that easily an initialization z. B. after a power failure is possible. The sensor can also be outside the case 10 be arranged close to this or else - after 1 - Close to the opposite side facing away from the hinge side of the door, since a particularly accurate sensing of the opening angle can be realized in any case over a first smaller angular range.

It is of course also possible, the ejection device in or on one of the side walls 4 . 5 to arrange or in the top wall 3 , The full integrable speed or the complete integration of the ejection device a correspondingly sized furniture wall has the advantage for any appropriately sized furniture wall that the ejection device is not visible or almost invisible except for small openings for the actuator and a sensor from the outside.

The power supply is ideally via a power supply to the furniture, which z. B. also in one of the walls 2 to 6 of the furniture is integrable.

With regard to the control, various variants are possible, it makes sense, for example in the opening and closing direction, the actuator element, ie the rotary lever or the plunger 11 to move at different speeds.

In particular on the segment gear 16 can be two sensors limiting the angle of rotation or switch 30 be arranged, which limit the movement in the opening and / or closing direction. It is advantageous to adjust the sensors or switches 30 to be able to set the path over which the actuator element is extendable or the segment gear is rotatable to set (see also 7 which is detectable after the sensor position).

Be hinges 8th used, which have a Selbsteinzugsvorrichtung with a Selbsteinzugsfeder acting over a certain angle of rotation, it makes sense if the ejector operates over a rotation angle which is greater than the angle of rotation over which the Selbsteinzugsfeder acts (Selbsteinzugswinkel, typically 35 ° to 45 ° !). In addition, the drive must of course be dimensioned more powerful than the spring of the hinge with the Selbsteinzugsvorrichtung.

It is also conceivable to monitor the rotation path in other ways, so over Current / voltage characteristics or a surveillance the speed, which is in relation to the opening path.

The use of a non-self-locking gearbox 15 (In particular, a drive screw 14 with non-self-locking pitch) has the advantage that it is easily possible to close the door manually against the action of the ejection device, if desired.

Both the ejector of the 1 to 6 as well as the 7 are designed to fit both left and right hinged doors 7 can be used, ie, they are by means of a rotation through 180 ° such that the upper and the lower mounting plate is rotated from "top" to "down" used in both installation situations, which simplifies the planning of the furniture maker. Thus, an independent invention is realized, after which the ejection device 1 in itself asymmetric configuration (here by the asymmetric on the housing 10 arranged ram 11 realized) by means of a rotation of 180 ° both left and right hinged doors can be used.

The ejection device 1 is preferably at the to the at least one hinge 8th mounted side facing the door, so that the plunger acts close to the axis of rotation, where with a small path on the actuator a large angle of rotation of the door movement is swept by the actuator.

It is conceivable the ejection device 1 optionally to be provided with a steam device, which is particularly useful in the retrofit case on doors, which are provided with non-damped hinges.

It is also useful, on the case 10 or furniture body, if necessary to install a release button, which is manually operable and is provided for example in the field of glass plates.

The variants of 7 are designed such that they can be integrated into a furniture wall (dimensions, for example, thickness 19 mm · width 70 mm · length 165 mm), which offers particular advantages, in particular with regard to the appearance. But it is also conceivable to put them on a furniture wall or to sink them only partially in a furniture wall, if installation is not desired or a retrofitting of a piece of furniture is to take place. For this purpose, the above devices own, but especially the 12 , which have a structure in the manner of 7 but with the housing 10 consists of two half-shells, which essentially - except for an opening for the actuator element and possibly one for the sensor - close.

So the housing can also be sorted by 12 have a T-shape, for example, because the engine is slightly wider than the transmission. Nevertheless, the basic suitability remains, theore table also in a recess of a furniture wall entirely (except for the actuator) or - less preferred - partially - to be used obtained.

12 shows a perspective view of another ejection device.

The 9 to 11 show variants of the configuration of the actuator, shown in particular on the example of the linearly movable plunger 11 ,

Thereafter, according to another invention, the actuator element, in particular the plunger 11 (or each of the rotary lever), designed such that at least its free end of the rotational movement of the door can follow a curved path and / or it is a friction of the actuator on the door 7 reducing action on the actuator and / or on the door 7 met.

So it makes sense, the actuator element, in particular the plunger 11 such that at least its free end of the rotational movement of the door can follow.

For this it makes sense, the ram end 32 at the other ram over at least one joint 31 to tie.

This can be designed for example as Einachsdrehgelenk ( 9b ), as Zweichachsdrehgelenk with two swivel joints 31 ( 9a ), as a ball joint ( 9a ) or otherwise.

This can be a flat surface 33 at the butt end 32 the movement of the door 7 consequences.

According to another variant, a rolling element is like a ball 34 or a role 35 at the free end of the pestle 11 arranged so that instead of sliding friction rolling friction between the plunger 11 and the inside wall of the furniture door 7 occurs.

The ram end 32 can also have an elastic section acting as a hinge 35 ( 10a ) be connected to the rest of the plunger. It is also conceivable, a section 36 or to manufacture the entire plunger from an elastomeric material ( 9f ).

The ram end 32 can also have a spring, in particular a coil spring, 37 to the pestle 11 be connected, which is pivotable about its articulation area on the plunger ( 11c ).

The ram end 32 can also have a joint chain 39 . 40 to the pestle 11 be connected, which is pivotable about its articulation area on the plunger ( 11d , e).

To 10b are rods 46 or ropes 47 Parallelogrammartig at the ram end of joints 31 hinged to pivot this by moving the rods or ropes.

It is also conceivable to manufacture at least the free end of the plunger from a sliding bearing-like material and / or to design the plunger tip in such a way (for example, completely or partially rounded or approximated by beveling the corners of a rounding, see 11g ), that the friction to the inner wall of the door is again reduced.

One spring or several springs 41 at the joints 31 - z. B. between the ram end 32 and the other pestle 11 - Can / can be provided to the free plunger end when closing the door to the hinge 31 zurückzuschwenken. One stop or several stops 42 can the rotational movement of the ram end 32 limit ( 11a ). The measures stop and return spring 41 . 42 can also be combined ( 11b . 11c ). The feathers 41 , can be configured as desired, as screws or leaf springs ( 10b . 11a -e). Instead of a metal spring is also an elastomeric element such as a ring 43 usable for the realization of the spring function ( 11d ).

It is finally conceivable, the pestle 11 ' not linearly extendable but to move it on a curved path, which, for example, with a gear 44 is feasible that on the internal teeth 45 an arcuate, z. B. guided in a lane (not shown here) plunger 11 ' rolls.

1

furniture body

2

bottom wall

3

top wall

4, 5

side walls

6

rear wall

7

revolving door

8th

hinge

9

axis of rotation

10

casing

11

tappet

12

drilling

13

electric motor

14

driven screw

15

gear transmission

16

segment gear

17

pen

18

scenery

19

mounting frame

20

sensor element

21

drilling

22 23

profiles

24 25

mounting plates or boards

26

drilling

27

lever member

28

role

29

Mounting screw pieces

30

switch

31

joint

32

plunger end

33

area

34

Bullet

35

role

36

section

37

coil spring

38

section

39, 40

articulated chain

41

feathers

42

attacks

43

ring

44

gear

45

internal gearing

46 47

Ropes / rods

48

sensor device

49

sensor element

Claims (45)

Discharge device for a movable furniture part, in particular a rotatable door, a piece of furniture, a furniture body ( 1 ) with at least one wall ( 2 ) or several walls ( 2 to 6 ), characterized in that the ejection device is designed such that it is in one of the walls ( 2 to 6 ) of the furniture is integrable. Ejecting device according to claim 1, characterized in that the furniture body of an associated piece of furniture serving as a bottom floor wall ( 2 ), a top or top wall ( 3 ), two side walls, ( 4 . 5 ) and a back wall ( 6 ), wherein the ejection device in an installation space in one of the walls ( 2 to 6 ) of the furniture is installed. Ejecting device according to claim 2, characterized in that the at least one side open towards furniture body of the associated furniture from the door ( 7 ) which can be closed on at least one or more single or multi-axis hinge (s) ( 8th ) is movable about a rotation axis D. Ejecting device according to claim 3, characterized in that the hinges ( 8th ) are formed on the associated furniture as damped hinges. Ejecting device according to claim 4, characterized in that the hinges ( 8th ) on the associated furniture as damped hinges with a damping function to the minimum and / or maximum opening angle of the door ( 7 ) are equipped. Ejecting device according to one of claims 3 to 5, characterized in that the hinges ( 8th ) Have closing springs for closing the door over a predetermined angle of rotation. Ejecting device according to one of the preceding claims, characterized in that the ejection device as the actuator element for moving the door a linearly movable plunger ( 11 ) having. Ejecting device according to one of the preceding claims, characterized in that the ejection device as the actuator element for moving the door is a lever element ( 27 ) having. Ejecting device according to one of the preceding claims, characterized in that the ejection device designed such that its thickness or height h is not greater than the thickness d of the receiving wall ( 2 to 6 ) of the associated furniture. ejector according to one of the preceding claims, characterized that the ejection device has a thickness h of less than 25 mm ejector according to one of the preceding claims, characterized that the ejection device has a thickness h of less than 20 mm ejector according to one of the preceding claims, characterized that the ejection device has a thickness h of less than 15 mm Ejecting device according to one of the preceding claims, characterized in that the wall ( 2 to 6 ), in which the ejection device is mountable on the associated furniture, at least one or preferably two spaced apart cover plates, between which a receiving space is formed, in which the ejection device ( 9 ) can be used. Ejecting device according to one of the preceding claims, characterized in that the wall ( 2 to 6 ) of the associated furniture in which the ejection device is mountable, a preferably circumferential mounting frame ( 19 ) having at least one profile or with a plurality of individually mountable profile elements. Ejecting device according to one of the preceding claims, characterized in that the mounting frame ( 19 ) a hole ( 12 ), which the free end of the actuator, in particular of the plunger ( 11 ) or the rotary lever at least permeated in the open position. Ejecting device according to one of the preceding claims, characterized in that the mounting frame ( 19 ) a hole ( 21 ) for receiving a sensor element ( 20 ) having. Ejecting device according to one of the preceding claims, characterized in that the ejection device comprises a housing ( 10 ) with two mutually spaced mounting plates or boards ( 24 . 25 ), between which drive elements of a drive device of the ejection device are mounted. ejector according to one of the preceding claims, characterized by a Drive device, which is an electromechanical drive unit as having a motor. ejector according to one of the preceding claims, characterized by a Drive device comprising a mechanical drive unit with a Energy storage has. Ejecting device according to one of the preceding claims, characterized in that the housing ( 10 ) two lateral - in cross section T-shaped - profiles ( 22 . 23 ), whose base leg on both sides support areas for the mounting plates or boards ( 24 . 25 ) form. Ejecting device according to one of the preceding claims, characterized in that between the mounting boards ( 24 . 25 ) mounted drive elements an electric motor ( 13 ) and a transmission ( 15 ). Ejecting device according to one of the preceding claims, characterized in that the transmission ( 15 ) as a multi-stage gear transmission ( 15 ), which has several translation stages ( 15a , ...) having. Ejecting device according to one of the preceding claims, characterized in that the transmission ( 15 ) a segment gear ( 16 ) having. Ejecting device according to one of the preceding claims, characterized in that the segment gear ( 16 ) with an eccentric pin arranged parallel to the axis of rotation of the segment gear ( 17 ), which in a scenery ( 18 ), which is connected to the actuator element. Ejecting device according to one of the preceding claims, characterized in that on the backdrop ( 18 ) a linearly movable plunger ( 11 ) is arranged as the actuator element. Ejecting device according to one of the preceding claims, characterized in that on the segment gear ( 16 ) a lever element ( 27 ) is arranged as the actuator element. Ejecting device according to one of the preceding claims, characterized in that the transmission ( 15 ) is not designed to be self-locking. Ejecting device according to one of the preceding claims, characterized in that preferably on the segment gear ( 16 ) the rotary path limiting, preferably adjustable switches or sensors ( 31 ) are arranged, which limit the movement in the opening and / or closing direction. Ejecting device according to claim 1 or according to the preamble of claim 1, characterized by a configuration such that, in an asymmetrical configuration by means of a rotation through 180 ° both on furniture with left and right hinged doors ( 7 ) can be used. Ejecting device according to claim 1 or according to the preamble of claim 1, characterized by a design such that it is attached to doors ( 7 ) closer to the side of the at least one hinge ( 8th ) is arranged towards the door than to the side opposite the hinges. Ejecting device according to one of the preceding claims or according to the preamble of claim 1, characterized in that the actuator element, in particular the plunger ( 11 ) is configured such that at least its free end of the rotational movement of the door on a curved path can follow and / or in that a friction of the actuator on the door reducing action on the actuator and / or on the door ( 7 ) is met. ejector according to claim 31, characterized in that the actuator element hinged is designed. Ejecting device according to claim 32, characterized in that the actuator element of one or more pivot joint (s) ( 31 ) having. Ejecting device according to one of claims 31 to 33, characterized in that the lifting element ( 27 ) or the plunger ( 11 ) a ram end ( 32 ), which is designed to be movable relative to the other plunger. Ejecting device according to claim 34, characterized in that the tappet end ( 32 ) via at least one rotary joint with the remaining plunger ( 11 ) or the lever element ( 27 ) connected is. Ejecting device according to one of the preceding claims, characterized in that rods ( 46 ) or ropes ( 47 ) parallelogram-like at the ram end ( 32 ) at joints ( 31 ) are moved to this by moving the rods or ropes ( 46 . 47 ) to swing. Ejecting device according to one of the preceding claims, characterized in that a rolling element such as a ball ( 34 ) or a roll ( 35 ) at the free end of the plunger ( 11 ) or the lever element ( 27 ) is arranged. Ejecting device according to one of the preceding claims, characterized by an elastic portion acting as a swivel joint ( 38 ) or an elastic embodiment of the plunger ( 11 ). Ejecting device according to one of the preceding claims, characterized by a spring, in particular a helical spring, ( 37 ) for tying the ram end ( 32 ). Ejecting device according to one of the preceding claims, characterized by a link chain ( 39 . 40 ) on the plunger ( 11 ). Ejecting device according to one of the preceding claims, characterized by sliding bearing-like material at the free end of the tappet ( 11 ). Ejecting device according to one of the preceding claims, characterized by one or more springs ( 41 ) at the joints ( 31 ). Ejecting device according to one of the preceding claims, characterized by a stop or a plurality of stops ( 42 ) at the joints ( 31 ). Ejecting device according to one of the preceding claims, characterized by the plunger ( 11 ) is adapted to be moved on an arcuate path. Furniture with a furniture body and a movable furniture part, especially a door, characterized by an ejection device according to one of preceding claims.