EP1507944B1 - Lid-positioning device - Google Patents

Description

• einen Stellarm,
  • der um eine erste Stellachse zwischen einer Offenstellung und einer Schließstellung schwenkbar an einer Seitenwand eines Schrankkorpus befestigbar ist,
  • der um eine zweite Stellachse schwenkbar an einem Deckel befestigbar ist, und
  • der eine Stellkontur aufweist, die um die erste Stellachse verläuft und die durch Stellmittel beaufschlagt ist,
• einen Steuerarm,
  • der um eine erste Steuerachse zwischen einer Offenstellung und einer Schließstellung schwenkbar an der Seitenwand des Schrankkorpus befestigbar ist, wobei die erste Steuerachse parallel beabstandet zu der ersten Stellachse angeordnet ist, und
  • der um eine zweite Steuerachse schwenkbar an dem Deckel befestigbar ist, wobei die zweite Steuerachse parallel beabstandet zu der zweiten Stellachse angeordnet ist.

The invention relates to a cover plate for a cabinet comprising

• an actuator arm,
  • which is mountable about a first adjusting axis between an open position and a closed position pivotably on a side wall of a cabinet body,
  • which is fastened to a lid pivotable about a second adjusting axis, and
  • having a setting contour which extends around the first adjusting axis and which is acted upon by adjusting means,
• a control arm,
  • which is fastened about a first control axis between an open position and a closed position pivotally mounted on the side wall of the cabinet body, wherein the first control axis is arranged parallel spaced from the first adjusting axis, and
  • which is fastened to the lid pivotable about a second control axis, wherein the second control axis is arranged parallel spaced from the second adjusting axis.

Such a cover plate is in the EP 0 044 081 A1 shown. The control contour here forms a cam with two lateral flanks, which serve as detent stops for a spring-loaded sleeve. Both in the open position and in the closed position engages a locking projection of the sleeve one of the locking stops, so that the lid is held in the open position and in the closed position. Between the open position and the closed position, the flap drops automatically due to gravity in the direction of the closed position.

Other known lid adjusters include an actuator arm and a control arm which are each pivotally mounted at one end about parallel spaced axes between an open position and a closed position on a side wall of a cabinet body. At their other ends they are each pivotally mounted about parallel spaced axes on a lid. The actuating arm is, for example, acted upon by a gas pressure accumulator or a compression spring to the open position. About a small pivoting between an intermediate position and the closed position of the actuating arm is acted upon the closed position. When you open the lid thus initially a tightening force is overcome, which ensures that the lid is held firmly in the closed position. After exceeding the intermediate position of the lid then moves by itself in the open position. When closing then the force that converts the lid in the open position to overcome. A lid plate of this kind shows DE 94 00 568 U1 ,

A disadvantage is that the lid is always transferred to the open position and when closing the lid, a relatively high force must be expended to close the lid against the force acting on it to the open position.

The DE 27 57 230 A1 shows a lid plate for hinging a lid of an extractor hood with an actuator arm and a control arm, both of which are each secured at one of its ends to spaced apart pivot axes arranged on a hinge part. The hinge part is attached to the body of a piece of furniture. The other ends of the arms are also connected to each other spaced pivot axes with the lid of the hood. The actuator arm forms a control contour with latching recesses into which a holding element in the form of a cam engages. The cam is by means of a spring in the direction of the control contour and thus acted upon in the recesses, wherein the spring is supported on the one hand against the cam and on the other hand against the hinge part. Thus, the lid of the hood is held in any pivotal positions, as the cam is spring loaded in the recesses pressed to prevent pivoting of the control arm due to gravity acting on the lid. In a further embodiment, instead of the latching recesses, a friction lining is provided, so that the friction force holds the cover in any desired position. Since the lid is arranged vertically in the closed position and when the lid is opened it is folded up, the torque increases due to the weight of the lid as it approaches the open position. Thus, when approaching the open position of the lid, a higher holding force is required by the cam, in particular if only one friction lining is provided instead of the latching recesses. Thus, the holding force of the cam in the recess or the frictional force of the cam on the control contour is large enough or adapted to the angular position of the lid, the radius of the control contour increases with increasing approach to the open position. Thus, the spring is increasingly compressed in the movement towards the open position, so that the cam is pressed with steadily increasing force against the setting contour, so that a sufficiently large force for holding the cam in the recess or for generating a sufficiently large frictional force is generated ,

The EP 1 148 200 A2 relates to a cover plate comprising two arms which are hinged together via a hinge axis. The free end of one of the arms is pivotally connected to a lid and the free end of the other arm with a body of a piece of furniture. Furthermore, the lid is pivotally attached to the body. Characterized in that the two arms of the Deckelstellers are each pivotally connected to the lid or the body and are pivotally connected to each other, this lid plate is suitable for lids which are pivotally mounted on the body. A control profile acted upon by a pressure roller about the hinge axis has a decreasing radial distance to the hinge axis and contributes to the fact that the cover remains in intermediate positions over a large angular range.

Object of the present invention is therefore to provide a cover plate, in which a cover can be adjusted in parallel or swung over the body of a cabinet and in which the lid is held in any position.

The object is achieved by a cover plate described above, wherein the adjusting contour is in the form of a curve, the radial distance from the first adjusting axis at least over a first part of the pivoting path, starting from the intermediate position, which is located between the open position and the closed position, the actuating arm decreasing in the direction of the open position, so that the actuating arm is acted upon at least over the first part of its pivoting path to take the open position with force and a torque is generated which corresponds to the counter-torque in each pivot position of the first part of the pivoting path, which by the weight of the lid is generated, so that the lid is held in any position between the open position and the intermediate position.

This ensures that the lid is held in any position. Since the force for holding the lid is balanced so that the lid is not moved by itself to the open position, also a smaller force to overcome when closing the lid.

The control contour can be adapted to any application, that is to say, any weight of the lid and any geometry of the positioning arm and control arm articulation.

Thus, over a small pivoting between an intermediate position and the closed position of the lid is not acted upon the open position, but a tightening force is provided which pushes the lid in its closed position, takes the radial distance of the adjusting contour to the first adjusting axis via a second part of the pivoting path from the closed position of the actuator arm to the intermediate position.

A sliding contact between the adjusting means, which may be formed as a control slide, and the control contour would lead to high wear, so that the friction forces vary greatly over the life. To avoid this, the locking slide with a roller which is rotatably mounted on the adjusting slide, be supported against the control contour.

Here, the lock slider can be acted upon by spring means against the control contour. A good support of the spring means can be achieved in that a support bearing is provided, which is held at a variable distance from the first adjusting axis, and that the spring means are supported on the one hand against the adjusting slide and on the other hand against the support bearing.

In order to keep the support bearing in a variable distance from the first adjusting axis, it is provided in a preferred embodiment that the support bearing is supported against a bearing surface of an abutment which is rotatably mounted about a rotation axis, wherein the bearing surface in the circumferential direction has a variable distance from the axis of rotation. The storage area may e.g. be snail-shaped. In the bearing surface locking recesses may also be provided to realize defined rotational positions of the abutment.

A preferred embodiment of the Deckelstellers has a housing, the on the side wall of the cabinet body is attachable and to which the actuating arm about the first control axis and the control arm is pivotally mounted about the first control axis.

Further, a fastening element may be provided, on which the actuating arm is pivotally mounted about the second adjusting axis and the control arm is pivotally mounted about the second control axis and which is fastened to the lid.

In order to achieve a parallel adjustment of the lid, the distance between the first adjusting axis and the first control axis and the distance between the second adjusting axis and the second control axis is the same size and the distance between the first adjusting axis and the second adjusting axis and the distance between the first Control axis and the second control axis also the same size.

Figur 1

eine Schnittansicht eines Schrankkorpus mit einem erfindungsgemäßen Deckelsteller, wobei der Deckel in seiner Schließstellung dargestellt ist und sich parallel verstellen lässt;

Figur 2

eine Ansicht gemäß Figur 1, wobei der Deckel in seiner Offenstellung dargestellt ist;

Figur 3

eine Schnittansicht eines Schrankkorpus mit einem erfindungsgemäßen Deckelsteller, wobei der Deckel in seiner Schließstellung dargestellt ist und sich über den Schrankkorpus verstellen lässt;

Figur 4

eine Ansicht gemäß Figur 3, wobei der Deckel in seiner Offenstellung dargestellt ist;

Figur 5

eine perspektivische Darstellung eines Deckelstellers gemäß Figur 1 und

Figur 6

eine Ansicht der Stellkontur am Stellarm.

Preferred embodiments are explained below with reference to the drawings. Herein shows

FIG. 1

a sectional view of a cabinet body with a cover plate according to the invention, wherein the lid is shown in its closed position and can be adjusted in parallel;

FIG. 2

a view according to FIG. 1 wherein the lid is shown in its open position;

FIG. 3

a sectional view of a cabinet body with a lid plate according to the invention, wherein the lid is shown in its closed position and can be adjusted over the cabinet body;

FIG. 4

a view according to FIG. 3 wherein the lid is shown in its open position;

FIG. 5

a perspective view of a Deckelstellers according to FIG. 1 and

FIG. 6

a view of the control contour on the actuator arm.

The FIGS. 1 and 2 show a cover plate according to the invention, in which a lid of a piece of furniture can be adjusted in parallel. A cabinet body 1 has a cabinet lid 2, a side wall 3, a cabinet bottom 4 and a rear wall 5. Within the cabinet body 1, an insert sheet 6 is provided. The cabinet body 1 forms an opening 7 which can be closed by a cover 8. The lid 8 is fixed by means of a cover plate 9 adjustable on the cabinet body 1. The cover plate 9 has an actuating arm 10 and a control arm 11. The actuator arm 10 is pivotally mounted to a housing 12 of the cover plate 9 about a first adjusting axis 13. The control arm 11 is pivotally mounted on the housing 12 about a first control axis 14. The first adjusting axis 13 and the first control axis 14 are parallel spaced from one another. The housing 12 is fixedly attached to the side wall 3.

At an end remote from the first adjusting shaft 13, the adjusting arm 10 is pivotally connected to a fastening element 15 about a second adjusting axis 16. The fastening element 15 is attached to an inner surface 22 of the lid 8 with this. The second adjusting axis 16 is arranged at a distance parallel to the first adjusting axis 13.

The control arm 11 is pivotally mounted about a second control axis 17 on the fastening element 15, wherein the second control axis 17 extends parallel to the first control axis 14 extends.

The imaginary lines between the first adjusting axis 13 and the second adjusting axis 16 and the first control axis 14 and the second control axis 17 are the same length and parallel to each other, so that a parallelogram is clamped. This ensures that the lid 8 from the FIG. 2 shown closed position in the in FIG. 2 shown open position is adjustable in parallel.

The control arm 10 has a setting contour 18. Against this, a lock slider 19 with a roller 20 is radially supported. The roller 20 is rotatably mounted on the lock slider 19. The lock slider 19 is acted upon by spring means 21 against the control contour 18.

The radial distance of the setting contour 18 to the first adjusting axis 13 in the contact region between the adjusting slide 19 and the adjusting contour 18 increases at least over a first part of the pivoting path of the actuating arm 10, starting from an intermediate position of the actuating arm 10, which is arranged between the open position and the closed position Open position. Here, the course of the control contour 18 is exactly matched to the weight of the lid 8, the actuator arm 10 and the control arm 11, that the lid 8 is held in any position. The torque that is generated by the adjusting slide 19, which is supported against the adjusting contour 18, thus changes over the pivoting path of the actuating arm 10, depending on how large the torque must be to hold the lid 8.

The Figures 3 and 4 show a lid plate, which allows a pivoting of a lid on a cabinet body. Corresponding components are provided with reference numerals which are increased by the value 100, and in the FIGS. 1 and 2 described.

In order to ensure a pivoting of the cover 108 over the cabinet body 101, the distance between the first adjusting axis 113 and the second adjusting axis 116 is less than the distance between the first control axis 114 and the second control axis 117. In addition, an imaginary straight line intersect through the two Stellachsen 113, 116 and a straight line through the two control shafts 114 and 117 above the Deckelstellers 109, further wherein the first control axis 114 is disposed below the first adjusting axis 113, whereas in a Deckelsteller according to FIG. 1 is arranged above the first adjusting axis. Thus, an open position as in FIG. 4 shown possible.

The cover plate 9 is according to the FIGS. 1 and 2 in the following on the basis of Figures 5 and 6 described together.

The actuator arm 10 is pivotally mounted in the housing 12 of the cover plate 9 about the first adjusting axis 13, wherein the housing 12 is fixedly connected to the side wall of the cabinet body. The actuating arm 10 has a setting contour 18, which in Form of a curve about the first adjusting axis 13 is shown.

In the housing 12, the lock slider 19 is guided linearly displaceable. The steep slide 19 has a roller 20 which is rotatably mounted on the adjusting slide 19 about a rotation axis 23 which is arranged parallel to the first adjusting axis 13. Spring means 21 in the form of compression springs act on the locking slide 19 and thus the roller 20 against the setting contour 18. The spring means 21 are based on the one hand against the lock slider 19 and on the other hand against a support bearing 24 from , which is mounted linearly displaceable in the housing 12. The support bearing 24 is supported against a bearing surface 25 of an abutment 26, wherein the abutment 26 is rotatably mounted about an axis of rotation 27 in the housing 12 and wherein the bearing surface 25 has a variable distance from the axis of rotation 27 of the abutment 26, so that the support bearing 24 in a variable distance to the first adjusting axis 13 is held in the housing 12. The bearing surface 25 is helical and has radial locking recesses 28, in which a detent 29 of the support bearing 24 engages in order to prevent the abutment 26 is rotated unintentionally.

The setting contour 18 of the actuating arm 10 is designed such that the radial distance of the adjusting contour 18 to the first adjusting axis 13 in the contact region between the adjusting slide 19, ie the roller 20, and the adjusting contour 18 via a pivoting path starting from the intermediate position of the actuating arm 10 to the open position on decreases an angular travel of the actuator arm 10. Thus, it is ensured that the actuating arm 10 is acted upon over the largest Winkelweg with a force that generates a moment to the upper position corresponding to the open position of the lid 8. About the Winkelweg starting from the intermediate position to the closed position, the control contour 18 has a flattening over the course of the radial distance to the first control axis 13 decreases. Thus, a torque is generated via this pivoting, which acts on the actuating arm 10 to the closed position. The setting contour 18 is designed such that the generated torque in each pivot position of the actuating arm 10 corresponds to that counter-moment, which is generated by the weight of the cover 8 in total, so that the cover 8 is held in any position between the open position and the intermediate position.

LIST OF REFERENCE NUMBERS

1, 101

cabinet body

2, 102

screw

3, 103

Side wall

4, 104

cabinet base

5, 105

rear wall

6, 106

shelf

7, 107

opening

8, 108

cover

9, 109

cover plate

10, 110

actuating arm

11, 111

control arm

12,112

casing

13, 113

first positioning axis

14, 114

first control axis

15, 115

fastener

16, 116

Second adjusting axis

17, 117

Second control axis

18, 118

setting contour

19, 119

lock slider

20, 120

role

21, 121

spring means

22, 122

palm

23

axis of rotation

24

support bearings

25

storage area

26

abutment

27

axis of rotation

28

latching depression

29

locking lug

Claims (4)

1. A lid positioning device for a cupboard or cabinet, comprising

   a positioning arm (10, 110)

   capable of being pivotally secured to a side wall (3, 103) of a cabinet member (1, 101) so as to pivot around a first positioning axis (13, 113) between an open position and a closing position,

   capable of being pivotally secured to a lid (8, 108) so as to pivot around a second positioning axis (16, 116), and

   having a positioning contour (18, 118) shaped around the first positioning axis (13, 113) and being acted upon by positioning means (19, 119),

   a controlling arm (11, 111),

   capable of being pivotally secured to the side wall (3, 103) of the cabinet member (1, 101) so as to pivot around a first controlling axis (14, 114) between an open position and a closing position, wherein the first controlling axis (14, 114) is spaced apart from and parallel to the first positioning axis (13, 113), and

   capable of being pivotally secured to the lid (8, 108) so as to pivot around a second controlling axis (17, 117), wherein the second controlling axis (17, 117) is spaced apart and parallel to the second positioning axis (16, 116),

   characterized in
   that the positioning contour (18, 118) is in the shape of a curve whose radial distance from the first positioning axis (13, 113) decreases at least along a first portion of the pivot path, starting from the intermediate position of the positioning arm (10, 110), located between the open position and the closing position, towards the open position so that the positioning arm (10, 110) is loaded towards the open position by a force along at least the first portion of its pivot path and a torque is produced which, in each pivotal position of the first portion of the pivot path, corresponds to a counter-torque produced by the weight force of the lid so that the lid (8, 108) is supported in each and every position between the open position and the intermediate positon.
2. The lid positioning device according to Claim 1,
   characterized in
   that the radial distance of the positioning contour (18, 118) with respect to the first positioning axis (13, 113) increases along a second portion of the pivot path starting from the closing position of the positioning arm (10, 110) towards the intermediate position.
3. The lid positioning device according to one of Claims 1 or 2,
   characterized in
   that the positioning means are provided in the form of a positioning slide (19, 119) resting against the positioning contour (18, 118) via a roller (20, 120) rotatably mounted on the positioning slide (19, 119).
4. The lid positioning device according to one of Claims 1 to 3,
   characterized in
   that the positioning means are provided in the form of a positioning slide (19, 119) loaded by means of spring means (21, 121) against the positioning contour (18, 118).

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