EP2266436B1 - Opening and closing device for a sliding element and furniture - Google Patents

Description

The present invention relates to an opening and closing device for a push element according to the preamble of claim 1 and a piece of furniture according to the preamble of claim 16.

From the prior art, such as from the EP 1500 763 A2 , Opening and closing devices for drawers are known, which have as essential functional elements on the one hand a locking mechanism with which a simultaneous opening of several stacked drawers can be prevented, and on the other have an ejection mechanism, with the drawer after slight depression in the closing direction the drawer is released from its closed position and then ejected from a furniture body, so that a user can engage behind the front panel of the drawer and pull out the drawer completely.

The problem with the generic opening and closing devices is that in the combination of an above-mentioned locking mechanism and an ejection mechanism, the triggering of these two mechanisms must be coordinated very precisely with one another in order to ensure the ejection or functional reliability of the system.

Object of the present invention is therefore to provide an opening and closing device for a pusher, with the functional reliability of the device is ensured in a structurally simple and cost-effective manner. This object is achieved by an opening and closing device for a push element with the features of claim 1 and by a piece of furniture with the features of claim 16.

The opening and closing device has an ejection mechanism with a second driver displaceable by a second activator, which is fixable in a guide housing along a guide and in an open position and a closed position, according to the invention, the closed position of the second driver in the direction of displacement of the thrust element adjustably aligned is.

By adjusting the closed position of the second driver manufacturing tolerances can be met in a simple and cost-effective manner and the opening and closing device are easily adjusted in the final assembly in the final assembly, so that the pusher can be safely triggered and at the same time arranged in its closed position with above or below can be adjusted flush with other pusher elements.

Further advantageous embodiments of the invention are the subject of the dependent claims.

According to one embodiment variant, an adjusting element for setting a contact surface of the activator in the direction of displacement of the pusher element is provided on the second activator. With such a particular adjustment screw designed as an adjustment of the closed position with the second activator associated second driver is ensured in a simple manner, without affecting the locking mechanism.

According to a further embodiment variant, the latching mechanism has a housing in which the control cam is displaceably mounted in the direction of displacement of the push element. By a displacement of the control cam in the direction of displacement of the pusher adjustment of the opening and closing device is also possible in a simple manner.

The control cam is formed according to a further embodiment on a backdrop which is slidably mounted in the housing. In particular, in the housing arranged an actuating unit with which the control cam is displaceable relative to the housing in the direction of displacement of the thrust element. This provides a structurally simple adjustment possibility for setting the closed position,

This adjusting unit is preferably designed as a knurled wheel connected to the backdrop. This allows a tool-free adjustment of the closed position of the second driver.

According to a further embodiment, a protrusion extending in the direction of displacement of the thrust element is provided on the housing on which the link is slidably mounted in the direction of displacement of the thrust element, wherein the projection is provided with transverse to the direction of displacement of the thrust element Rastrillen, in the one in the backdrop Transversely to the direction of displacement of the thrust element and transversely to the grooves slidably arranged fixing element for fixing the link engages in a predetermined position on the housing. Also, this embodiment allows a simple and secure adjustment of the second driver to ensure the reliability of the opening and closing device.

According to a further embodiment, the control cam is formed integrally with the housing, so that in this embodiment, an adjustment of the opening and closing device via the adjusting device takes place on the second activator.

In particular, an adjustable in the direction of displacement of the pusher spring stop is provided in the housing, with which the force accumulator is biased in the closed position of the second driver. With such an adjustable spring stop a variable adjustment of the spring force is enabled, so that the spring force of the energy storage could be adjusted depending on the load of the pusher, for example.

Due to the special design of the second driver with only one contact surface to the second activator a withdrawal of the respective thrust element without damaging the ejection mechanism is possible. The pusher can be selectively ejected or withdrawn.

A locking mechanism acting on the thrust element via the first activator and the first driver causes the safe entry of the thrust element into the locking mechanism. Furthermore, the closure mechanism in the form of a self-closing device known from the prior art, the contact between the second activator and the second driver when closing the pusher is made. This contact is needed to trigger the ejection mechanism by pushing the pusher in the closing direction. In addition, the pushers are securely guided in the locking mechanism to cancel the blockage of the non-extended pushers by the locking mechanism.

Fig. 1 bis 3

verschiedene perspektivische Ansichten eines Schubelements mit einer erfindungsgemäßen Öffnungs- und Schließvorrichtung,

Fig. 4 bis 6

verschiedene Ansichten einer Ausführungsvariante des zweiten Aktivators,

Fig. 7 a bis c

unterschiedliche Ansichten eines mit dem ersten Aktivator gekoppelten zweiten Aktivators,

Fig. 8

eine schematische perspektivische Ansicht eines einstückig miteinander verbundenen ersten und zweiten Aktivators,

Fig. 9

eine schematische perspektivische Ansicht des Schubelements aus Fig. 3 mit einer weiteren Ausführungsvariante des zweiten Aktivators,

Fig. 10 a und b

schematische perspektivische Ansichten des zweiten Aktivators aus Fig. 9,

Fig. 11 und 12

schematische perspektivische Explosionsansichten einer ersten Ausführungsvariante des Ausstoßmechanismus,

Fig. 13

eine schematische perspektivische Ansicht einer zweiten Ausfüh- rungsvariante des Ausstoßmechanismus,

Fig. 14 13,

eine Explosionsdarstellung des Ausstoßmechanismus aus Fig.

Fig. 15

eine schematische perspektivische Ansicht der Öffnungs- und Schließvorrichtung aus Fig. 1 ohne Darstellung des Schubelements,

Fig. 16 und 17

verschiedene schematische perspektivische Explosionsdarstel- lungen der Öffnungs- und Schließvorrichtung aus Fig. 15 mit unterschiedlich positionierten Steuerkurven,

Fig. 18 a bis d

zeigt den Ablauf des Ausstoßmechanismus,

Fig. 19 a und b

eine verschiebbar gelagerte Steuerkurve in ihrer Minimalposition,

Fig. 20 a und b

eine verschiebbar gelagerte Steuerkurve in ihrer Maximalpositlon und

Fig. 21 a und b

schematische Draufsichten auf eine alternative Ausführungs- variante des Rastmechanismus.

Embodiments of the invention will be explained in more detail with reference to the accompanying figures. Show it:

Fig. 1 to 3

various perspective views of a pusher with an opening and closing device according to the invention,

4 to 6

different views of a variant of the second activator,

Fig. 7 a to c

different views of a second activator coupled to the first activator,

Fig. 8

a schematic perspective view of an integrally interconnected first and second activator,

Fig. 9

a schematic perspective view of the thrust element Fig. 3 with a further embodiment variant of the second activator,

Fig. 10 a and b

schematic perspective views of the second activator Fig. 9 .

FIGS. 11 and 12

schematic exploded perspective views of a first embodiment of the ejection mechanism,

Fig. 13

1 is a schematic perspective view of a second embodiment of the ejection mechanism,

Fig. 14 13,

an exploded view of the ejection mechanism of FIG.

Fig. 15

a schematic perspective view of the opening and closing device Fig. 1 without depiction of the push element,

FIGS. 16 and 17

various schematic perspective exploded views of the opening and closing device Fig. 15 with differently positioned cams,

Fig. 18 a to d

shows the flow of the ejection mechanism,

Fig. 19 a and b

a slidably mounted control cam in its minimum position,

Fig. 20 a and b

a slidably mounted control cam in its Maximalpositlon and

Fig. 21 a and b

schematic plan views of an alternative embodiment of the locking mechanism.

In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the device and other parts selected in the respective figures. These terms are not meant to be limiting, i. H. through different working positions and / or mirror-symmetrical design or the like, these references may change.

In the Fig. 1 to 3 is designated by the reference numeral 1 a total of a pusher element 1. To move the pusher element 1 1 extension guides are provided on opposite sides 2, the pusher element, wherein at least one pull-out guide an opening and closing device is provided. The pusher 1 is connected to the rails 58, shown in FIG Fig. 15 coupled, wherein the running rail 58 on a guide rail 56 and possibly a center rail 57 is movable, wherein the guide rail 56 is fixed directly or via a trained here as an angle sheet fastener 3 on a (not shown) furniture body of a piece of furniture. To ensure that in a piece of furniture that has a plurality of pushers 1, only one of the pushers 1 can be pushed out of the furniture body, the opening and closing device has a locking mechanism with a locking bar 4, with the superimposed extendable pushers 1 such can be locked, that only one of the pushers 1 can be pulled out of the furniture body of the furniture or pushed. To activate this locking mechanism, a first activator 8 with a lug 21 is arranged laterally on the pusher element 1, which is operatively connected to a first pusher 7 arranged on the guide housing 5 in such a way that an ejection process or a pull-out operation of the pusher element 1 is either blocked or that Ejecting or pulling out of the push element 1 causes a blockage of the above or below arranged push elements.

Due to the special design of the second driver 10 with only one contact surface 70 for the second activator 9, 9 ', 9 ", it is possible to remove the respective push element 1 without damaging the ejection mechanism The push element 1 can thus be selectively ejected or pulled out.

For handle-less operation of the pusher 1 by a user, the opening and closing device further comprises an ejection mechanism, with which an opening of the pusher member 1 by pressing the pusher member in the closing direction of the pusher member 1 is made possible. For this purpose, the ejection mechanism has a displaceable second driver 10, which is displaceable in the guide housing 5 along a guide 6 and can be fixed in an open position and a closed position. The activation of the ejection mechanism is effected by a second activator 9 arranged laterally on the push element 1 with a nose 22. The fixation of the second driver 10 in the closed position is effected by a detent mechanism with a control cam 39 and a displaceable along the control cam 39 and with the second driver 10 coupled control element 20 to fix the second carrier 10 against the force of an energy accumulator 37 in the closed position. The energy accumulator 37 serves to push the pusher element 1 from the closed position of the pusher element 1 in the furniture body from this, so that a user can grasp the inside of a front panel of the pusher element 1 and thus can further pull the pusher element 1 out of the furniture carcass.

The locking strip 4 is preferably formed as a metal strip with a C-profile, in which sliding parts 15 are arranged, which are shaped such that the first activator 8 is pushed during a pull-out operation of the pusher element 1 between two such sliding parts 15 and in this way the other Push elements 1, which are also in operative connection with this locking bar 4, are blocked.

As in particular in Fig. 3 can be seen well, stand laterally from the thrust element 1 detents 17, where the first activator 8 and the second activator 9 are latched. The first activator 8 is additionally fixed in a bracket 69. The particular designed as a drawer push elements 1 preferably have side panels formed as side walls, wherein the locking lugs 17 and the bracket 69 are arranged on a lower frame portion 16. In this figure, moreover, the coupling of the second activator 9 with the second driver 10 is clearly visible. The second driver 10 is coupled to a rod 18, which projects into a cylindrical housing 12 of the ejection mechanism and is coupled there to a control element 20 which is displaceable along a control cam 39 arranged in a housing 19 which is placed on the cylindrical housing 12 is.

In order to ensure the function or trigger safety in the combination of a locking mechanism with an ejection mechanism in an easily adjustable and cost-effective manner, the closed position of the second driver 10 in the direction of displacement of the pusher element 1 and / or the second activator 9 is adjustable.

This is how in the Fig. 4 to 7 shown, in a first embodiment variant of the second activator 9 is provided with an adjusting member 25 for adjusting a contact surface 26 of the second activator 9 in the direction of displacement of the pusher element 1. This contact surface 26 of the activator 9 interacts with the contact surface 70 on the second driver 10. The second activator 9 can be fixed in a simple manner to the latching lugs 17 of the pusher element 1. For this purpose, one of the shape of the locking lug 17 is adapted to an end face of the second activator 9 Protrusion 27 integrally formed, which engages behind the locking lug 17 in the mounted state. The contact surface 26 of the second activator 9 to be brought into contact with the second driver 10 can be adjusted in the direction of displacement of the push element 1 by means of an adjusting element 25 designed as an adjusting screw. Alternatively, the adjustment of the contact surface 26 on the activator 9 can also be done without tools, for example via a knurled screw. The adjusting screw 25 is embedded in a nose-like shaped fitting 24, which is integrally formed on a flat body 23 of the second activator 9. At the opposite end of the contact surface 26 of the main body 23 mounting openings 28 are recessed in the base body 23 to mount the second activator 9 on an end piece 35 of the first activator 8 and to dismantle.

The Fig. 5a and b show the second activator 9 with differently set contact surfaces 26. Die in Fig. 6 shown back of the second activator 9 from the Fig. 4 and 5 shows recesses 31 and 30, and a web 29 which serve to mount the second activator to the locking lugs 17 and the coupling of the second activator 9 to the first activator 8.

Fig. 8 shows a further embodiment of the activators 8 and 9, which are integrally formed here as an activator 9 '. In addition, the contact surface 26 'is formed as a non-adjustable fitting. The adjustment of the closed position of the second driver 10 must therefore take place when using this Aktivatorvariante elsewhere, to the later with reference to the Fig. 11 to 21 will be received.

The Fig. 9 and 10 show yet another embodiment of the second activator 9 ", which is designed so that it is no longer coupled to the first activator 8 in the mounted state, but is mounted separately at a predetermined distance from the first activator 8 on the pusher element 1 Variant is particularly suitable for use with longer pushers 1, in which the locking mechanism and the ejection mechanism are further spaced from each other.

The Fig. 11 and 12 show a first embodiment of the opening and closing device, wherein the latching mechanism comprises a housing 19 in which at least a portion of the control cam 39 is slidably mounted in the direction of displacement of the pusher element 1. The displaceable part of the control cam 39 is thereby preferably formed on a gate 38, which is slidably inserted in a recess 44 of the housing 19.

The gate 38 consists of a base body 42 on which the control cam 39 is formed. On one end face of the link 38 is a cylindrical piece 43 with one of the front side of the housing 19 facing the central bore 47 into which a designed as a thumbscrew adjusting unit 45 protrudes. To move the link 38 in the direction of displacement of the pusher 1, the thumbscrew is rotatably fixed in a bore 46 in the end face of the housing 19 and the central bore 47 of the gate 38 provided with an internal thread, so that by turning the actuator 45 formed as a thumbscrew the backdrop 38 is advanced or used in the recess 44. A design of the bore 46 with an internal thread and a determination of the thumbscrew in the bore 47 of the gate 38 is also conceivable.

On the side facing away from the bore 47, a cylindrical web 48 is provided below the control cam 39, on which the force accumulator 37, which is preferably designed as a compression spring, can be pushed on.

As in Fig. 11 can also be seen, the formed on the gate 38 control cam 39 is formed as a heart curve with an extending away from the heart in the extension direction of the pusher element 1 extension web 40. Furthermore, a part of the control cam 49, 50 is formed directly on the housing 19. The gate 38 is located with the control cam 39 in a front side of the housing 19 near position, it is effectively prevented by the extension web 40 that the control element 20 threading during an insertion operation of the pusher element 1 in the wrong side of the cam 39.

The FIGS. 13 and 14 show a variant of the opening and closing device, in which the control cam 39 'is completely formed on the housing 19'. This variant requires the adjustment of the closed position of the second driver 10 via the second activator 9, as described above. In the embodiment variant shown in these figures, a variation of the prestressing of the energy accumulator 37 can be achieved by adjusting the setting unit 45 in the form of a knurled screw. For this purpose, a counterpart 51 is arranged in the interior of the housing 19 ', which is formed on one side with a circumferential cylindrical web 54, to which the preferred designed as a compression spring energy storage 37 is aufstülpbar. On the opposite side, a cylindrical piece 52 is provided with a central bore 53, in the adjusting unit 45 can be inserted. The adjustment of the bias of the energy accumulator 37 takes place, as already described above, by placing an internal thread in the bore 53 or in the bore 46 'on the end face of the housing 19' and turning the preferably designed as a thumbscrew actuator 45th

The FIG. 15 shows a further embodiment of the opening and closing device, in which the control cam 39 is integrally formed on a gate 38 and the adjustment of this gate 38 via a displacement of the gate 38 along a projection 66 of the housing 19 takes place, as in the Fig. 16 and 17 shown, is provided with transverse to the direction of displacement of the pusher element 1 locking grooves 67, in which a on the link 38 transversely to the direction of the Schubele-element 1 and transversely to the grooves 67 movably arranged fixing member 14 for fixing the link 38 in a predetermined position the housing 19 engages.

As in particular in the Fig. 17 can be seen, the housing 19 is not end provided with an end face, but designed in the direction of insertion of the pusher 1 towards open. At the gate 38, a cylinder tube piece 13 is formed, which is aufstülpbar on the projection 66, wherein this cylinder tube piece 13 has a lateral bore into which a preferably designed as a fixing screw fixing element 14 is screwed, the tip of this fixing in the locking grooves 67 on the Protrusion 66 engages and so fixed the cam 39 in a predetermined position.

In the Fig. 18 a) to d) the operation of the Ausstaßmechanismus is shown. It shows the Fig. 18 a) If the push element 1 is moved in the insertion direction, the second driver 10 is pressed from a certain position of the second activator 9 in the direction of insertion of the pusher element 1. This will cause the control 20, which, as shown in detail in FIG Fig. 17 is coupled via a push rod 18 and a connecting member 61 is coupled to the second driver 10, along a first control cam 49 in the direction of the control cam 39 pressed, runs, as in Fig. 18b) shown along the cam 39 along and finally when releasing the thrust element by the spring force of the force accumulator 37 designed as a compression spring is pressed into a closed position depression 41 of the heart cam 39. In this position, the energy accumulator 37 is biased so that pushed by subsequent pressing the pusher element 1 in the insertion direction, the control of this closed position against the force of the energy accumulator 37 and the subsequent release of the thrust element, the thrust element 1 is pushed against the insertion direction of the furniture body and thereby the control element 20 is guided along the opposite side of the control cam 39.

As in the Fig. 19 to 21 shown, depending on the setting of the gate 38, a gap 68 between the gate 38 and the housing 19, which is bridged by the formation of the extension web 40 on the formed as a heart cam cam 39 and thus ensures a safe guidance of the control element 20 along the control cam 39 ,

LIST OF REFERENCE NUMBERS

1

push element

2

opposite side

3

fastener

4

locking bar

5

guide housing

6

guide

7

First driver

8th

First activator

9

Second activator

9 '

Second activator

9 "

Second activator

10

Second driver

11

compression spring

12

cylindrical housing

13

Cylinder pipe section

14

fixing

15

sliding part

16

frame section

17

locking lug

18

pole

19

casing

19 '

casing

20

control

21

nose

21 '

nose

22

nose

23

body

23 '

body

23 "

body

24

fitting

24 '

fitting

24 "

fitting

25

adjusting

25

adjustment

26

contact area

26 '

contact area

26 "

contact area

27

protuberance

27 '

protuberance

27 "

protuberance

28

mounting hole

29

web

30

recess

30 "

recess

31

recess

31 "

recess

32

body

32 '

body

33

locking lug

33 '

locking lug

34

opening

35

tail

36

move

36 '

move

37

power storage

38

scenery

39

cam

39 '

cam

40

extension web

41

Schüeßpositionssenke

42

body

43

cylinder piece

44

recess

45

actuator

46

drilling

46 '

drilling

47

central hole

48

cylindrical bridge

49

cam

49 '

cam

50

cam

50 '

cam

51

counter-piece

52

cylinder piece

53

central hole

54

cylindrical bridge

55

drilling

56

guide rail

57

middle rail

58

runner

59

guide piece

60

drilling

61

connecting element

62

adapter piece

63

adapter piece

64

lock ring

65

locking lug

66

head Start

67

Rest grooves

68

gap

69

hanger

70

contact area

Claims (16)

1. Opening and closing device for a push-in element (1), in particular a drawer, having

   - a locking mechanism with a first driver (7) which is mounted displaceably on a guide housing (5) and is couplable to a first activator (8) and which is operatively connected to a locking strip (4) for locking a plurality of extendable push-in elements (1) arranged one above the other,

   - an expulsion mechanism with a second driver (10) which is displaceable by means of a second activator (9, 9', 9") and which is displaceable in the guide housing (5) along a guide (6) and can be fixed in an opening position and a closing position,

   - the expulsion mechanism having a latching mechanism with a control cam (39) and with a control element (20) displaceable along the control cam (39) and coupled to the second driver (10), in order to fix the second driver (10) in the closing position counter to the force of a force accumulator (37),

   characterized in that

   - the closing position of the second driver (10) is designed to be adjustable in the direction of displacement of the push-in element (1).
2. Opening and closing device according to Claim 1, characterized in that a setting element (25) for setting a contact face (26) of the activator (9) in the direction of displacement of the push-element (1) is provided on the second activator (9).
3. Opening and closing device according to Claim 2, characterized in that the setting element (25) is designed as an adjusting screw.
4. Opening and closing device according to one of the preceding claims, characterized in that the latching mechanism has a housing (19), in which at least part of the control cam (39) is mounted displaceably in the direction of displacement of the push-in element (1).
5. Opening and closing device according to Claim 4, characterized in that at least part of the control cam (39) is integrally formed on a slotted link (38).
6. Opening and closing device according to Claim 5, characterized in that the control cam (39) is designed as a cardioid with a lengthening web (40) extending away from the heart in the pull-out direction of the push-in element (1).
7. Opening and closing device according to one of Claims 4 to 6, characterized in that an actuating unit (45) is arranged on the housing (19), by means of which actuating unit the control cam (39) can be displaced in relation to the housing (9) in the direction of displacement of the push-in element (1).
8. Opening and closing device according to Claim 7, characterized in that the actuating unit (25) is designed as a knurled screw connected to the slotted link (38).
9. Opening and closing device according to Claim 7, characterized in that the housing (19) has provided on it a projection (66) which extends in the direction of displacement of the push-in element (1) and into which the slotted link (38) is slipped displaceably in the direction of displacement of the push-in element (1), the projection (66) being provided with latching grooves (67) which run transversely with respect to the direction of displacement of the push-in element (1) and into which engages a fixing element (14) arranged on the slotted link (38) movably transversely with respect to the direction of displacement of the push-in element (1) and transversely with respect to the running grooves (67), for fixing the slotted link (38) in a predetermined position on the housing (19).
10. Opening and closing device according to one of Claims 1 to 3, characterized in that the control cam (39) is fixed in the housing (19).
11. Opening and closing device according to one of Claims 1 to 3, characterized in that the control cam (39) is formed in one piece with the housing (19).
12. Opening and closing device according to one of the preceding claims, characterized in that the force accumulator (37) is designed as a compression spring.
13. Opening and closing device according to one of Claims 10 to 12, characterized in that the housing (19) has provided in it a spring stop (51) which is adjustable in the direction of displacement of the push-in element (1) and by means of which the force accumulator (37) can be prestressed in the closing position of the second driver (10).
14. Opening and closing device according to Claim 13, characterized in that the spring stop (51) is coupled to the knurled wheel.
15. Opening and closing device according to one of the preceding claims, characterized in that the first activator (8) is formed in one piece with the second activator (9).
16. Furniture having a plurality of push-in elements (1), characterized by an opening and closing device according to one or more of the preceding claims.

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