EP1871967B1 - Retaining element - Google Patents

Abstract

A retaining element for the lid of a cabinet has a linkage in the form of an eccentric sliding crank drive with an arm (1) as a slider link of the sliding crank drive. The arms (1) can be fixed to a cabinet housing (27) and pivotably connected to the lid and is pivotable around a first arm axis (5) of a first joint (6). A lever (2) can be fixed to the cabinet housing (27) and is pivotable around a first lever axis (7) of a second joint (8). A slider element (3) is guided at the arm (1) and is displaceable along a slider axis (12). The lever (2) is connected to the slider element (3) and is pivotable around a second lever axis (9). A force element (14) force-loads the arm (1) and slider element (3).

Description

The invention relates to a holding element, in particular for a lid of a cabinet, with an arm which is pivotally fastened to a cabinet armature housing housing between a first open position and a closed position and pivotally connected to the lid, with a lever, which is pivotally fastened to a first lever axis of a second joint on the cabinet housing, with a thrust element which is displaceably guided along a thrust axis on the arm, wherein the lever is pivotally connected to the thrust element about a second lever axis and with a force element which against the Arm and is supported against the thrust element and this applied with force.

Such a holding element is from the DE 25 16 635 B1 known. In this holding element, the arm is designed as a tube and receives a force element in the form of a helical spring. This is on the one hand connected to the lever and on the other hand to the pipe. The coil spring is stressed and keeps the arm in the closed position. When opening the lid, the arm exceeds a dead center, from which the coil spring acts on the arm in the open position, so that the arm is automatically moved to the open position and is held in this. The first lever axis is arranged such that these and the first arm axis lie at maximum tensioned coil spring on the thrust axis. The lever enters through an incision in the tube and is arcuately curved and has a recess which engages in the position of the arm, in which the coil spring is maximally biased, a bearing journal of the first joint.

Object of the present invention is to provide a holding element that is simple in construction and allows easy adjustment to different covers.

According to the invention, the object is achieved by a retaining element, in particular for a cover of a cabinet, which is designed as a four-bar linkage in the form of an eccentric crank loop
an arm as a loop of the crank-type transmission, which is pivotally fastened to a cabinet housing between a first open position and a closed position about a first arm axis of a first articulation and which is pivotally connected to the lid,
a lever as a crank of the crank-type transmission, which can be fastened pivotably about a first lever axis of a second articulation on the cabinet housing,
a thrust element as a sliding block of the crank-type transmission, which is slidably guided along a thrust axis on the arm, wherein the lever is pivotally connected to the thrust element about a second lever axis and wherein the thrust axis crosses the first arm axis at a distance, and
a force element, which is supported against the arm and against the thrust element and this applied with force,
solved.

Since the retaining element is designed as a four-bar linkage in the form of an eccentric crank loop and thus the thrust axis crosses the first arm axis with distance, a collision of the lever is prevented with the first joint during pivoting of the arm. The structure of the retaining element can therefore be made simpler. For example, the lever can be made straight.

Another advantage is that with a straight lever this can transmit the forces to be absorbed particularly well. In particular, when the lever is subjected to pressure, a straight design of the lever has an advantageous effect, since this does not have to be specially reinforced against kinking.

Advantageously, adjusting means are provided, by means of which the position of at least one of the joints is adjustable. The holding element can thus not only by Adjusting the force of the force element to be set to different flaps, as is possible, for example, in spring means by adjusting the bias. It is rather the positions of the joints adjusted to each other. The force of the force element can be additionally adjustable here.

Since the joints are mounted on the cabinet housing, easy accessibility and a simple structure is ensured.

The adjusting means may comprise a supporting element, which carries the first and the second joint and which is at least indirectly attachable to the cabinet housing.

Preferably, the support member comprises a base member and a carriage, wherein the base member has a guide along which the carriage is slidably guided. One of the joints is provided on the base element and the other joint on the slide. Thus, a simple and robust construction of the adjusting is given.

The first joint may be provided on the base member and the second joint on the carriage, so that not the joint of the larger-shaped arm but the joint of the smaller-shaped lever must be moved.

In order to ensure an adjustment of both joints, so that manufacturing tolerances of the cabinet can be compensated, a mounting plate is provided on which the support member is slidably mounted and which can be fastened to the cabinet housing.

The support member may in this case be attached to a mounting plate which is slidably disposed along a guide of the mounting plate. Thus, different mounting plates and mounting plates for different cabinets can be provided without the support element must be changed.

In a preferred embodiment, the pusher element is displaceably guided on the arm along a pusher axis.

Here, the arm may comprise a tube in which the thrust element is guided displaceably.

Preferably, the holding element is designed such that the arm is held in the open position by the force element in this position. Furthermore, the arm can be held in the closed position by the force element in this position.

Preferably, the force element is a gas spring. As a result, a force element is provided which exerts approximately a constant force regardless of the magnitude of the deflection. Thus, a holding element can be provided which is designed such that the lid is held at least from a dead center in any desired position in the direction of the open position. Since the force of the gas spring and the design of the four-bar mechanism are designed such that the cover holds in any position, no braking means are required. This allows the lid to pivot easily. A dead center is to be provided when a torque is to be generated from this towards the closed position.

The holding member may be for a lid which is pivotally mounted on the cabinet housing of the cabinet, wherein the arm about a second arm axis of a third articulation is pivotally and slidably attachable to the lid.

In this embodiment, the lid is pivoted about a pivot axis relative to the cabinet housing.

Furthermore, the holding element may also be intended for a cover which is not fastened directly to the cabinet housing of the cabinet, wherein the arm is pivotally attachable to the lid about a second arm axis of a third hinge, the holding element has a control arm which is about a first control arm axis fourth hinge pivoted on the cabinet body is fastened, and the control arm about a second control arm axis of a fifth joint to a lid is pivotally fastened.

In this embodiment, the cover is either moved in parallel or pivoted over the top floor of the cabinet housing.

Here, the holding element may comprise a fastening element, on which the arm about the second arm axis and the control arm about the second control arm axis are pivotally mounted, wherein the fastening element is fastened to the lid. Thus, a structural unit is formed, which is easy to assemble.

In a further embodiment, the holding element is intended for a lid in the form of a folding lid with a first lid member and a second lid member, wherein the first lid member is pivotally mounted on the cabinet housing and the second lid member pivotally connected to the first lid member and the arm about a second arm axis of a third joint pivotally mounted on the second cover element of the lid can be fastened.

In this embodiment, the lid is folded up when opening.

Figur 1

eine perspektivische Darstellung eines erfindungsgemäßen Halteelements;

Figur 2

einen Längsschnitt des Halteelements gemäß Figur 1 in der Schließstellung;

Figur 3

einen Längsschnitt des Halteelements gemäß Figur 1 in einer Zwischenstellung;

Figur 4

einen Längsschnitt des Halteelements gemäß Figur 1 in der Offenstellung;

Figur 5

einen Längsschnitt des Halteelements gemäß Figur 1 in der Schließstellung einer ersten Anwendung;

Figur 6

einen Längsschnitt des Halteelements gemäß Figur 1 in der Zwischenstellung einer ersten Anwendung;

Figur 7

einen Längsschnitt des Halteelements gemäß Figur 1 in der Offenstellung einer ersten Anwendung;

Figur 8

einen Längsschnitt des Halteelements gemäß Figur 1 in der Schließstellung einer zweiten Anwendung;

Figur 9

einen Längsschnitt des Halteelements gemäß Figur 1 in der Zwischenstellung einer zweiten Anwendung;

Figur 10

einen Längsschnitt des Halteelements gemäß Figur 1 in der Offenstellung einer zweiten Anwendung;

Figur 11

einen Längsschnitt des Halteelements gemäß Figur 1 in der Schließstellung einer dritten Anwendung;

Figur 12

einen Längsschnitt des Halteelements gemäß Figur 1 in der Zwischenstellung einer dritten Anwendung;

Figur 13

einen Längsschnitt des Halteelements gemäß Figur 1 in der Offenstellung einer dritten Anwendung;

A preferred embodiment will be explained in more detail with reference to the following drawings. Herein shows

FIG. 1

a perspective view of a holding element according to the invention;

FIG. 2

a longitudinal section of the retaining element according to FIG. 1 in the closed position;

FIG. 3

a longitudinal section of the retaining element according to FIG. 1 in an intermediate position;

FIG. 4

a longitudinal section of the retaining element according to FIG. 1 in the open position;

FIG. 5

a longitudinal section of the retaining element according to FIG. 1 in the closed position of a first application;

FIG. 6

a longitudinal section of the retaining element according to FIG. 1 in the intermediate position of a first application;

FIG. 7

a longitudinal section of the retaining element according to FIG. 1 in the open position of a first application;

FIG. 8

a longitudinal section of the retaining element according to FIG. 1 in the closed position of a second application;

FIG. 9

a longitudinal section of the retaining element according to FIG. 1 in the intermediate position of a second application;

FIG. 10

a longitudinal section of the retaining element according to FIG. 1 in the open position of a second application;

FIG. 11

a longitudinal section of the retaining element according to FIG. 1 in the closed position of a third application;

FIG. 12

a longitudinal section of the retaining element according to FIG. 1 in the intermediate position of a third application;

FIG. 13

a longitudinal section of the retaining element according to FIG. 1 in the open position of a third application;

The FIGS. 1 to 4 show a retaining element according to the invention in different representations and will be described together below.

The holding element comprises an arm 1, a lever 2, a push element 3 and a force element 14. The arm 1 is about a first arm axis 5 of a first joint 6 between a in FIG. 2 shown closed position and a in FIG. 4 shown open position pivotally mounted on a cabinet housing. The arm 1 is also pivotally connected to a lid of the cabinet about a second arm axis 32.

The lever 2 is pivotally attached to the cabinet housing about a first lever axis 7 of a second joint 8. Further, the lever 2 is pivotally connected to the thrust element 3 about a second lever axis 9.

The thrust element 3 has a partially cylindrical outer surface, which forms a sliding surface 10. With this, the thrust element 3 is guided in a tube 11 of the first arm along a thrust axis 12 slidably. The thrust shaft 12 is disposed so as to cross the first arm shaft 5 at a distance. For this purpose, the arm 1 has a hinge part 43, which is attached to one end 24 of the tube 11 and projects transversely to the thrust axis 12. The hinge part 43 has a fastening lug 44 projecting in the direction of the push axis 12, which is inserted into the tube 11. At the opposite end of the joint part 43, a joint bore 45 is provided which receives a pivot pin 46 of the first joint 6.

The arm 1, the lever 2, the thrust element 3, the first joint 6 and the second joint 8 thus form a four-bar linkage in the form of an eccentric (staggered) crank loop. Here, the arm 1 forms the loop, the lever 2, the crank and the thrust element 3, the sliding block of the crank gear.

In order to generate a force which counteracts the weight of the lid, a gas spring 14 is provided, which is arranged within the tube 11. In this case, a piston rod 13 is supported axially against the thrust axis 12 against the thrust element 3. A piston 15 of the gas spring 14 is fixed in the tube 12 at the first joint 6 facing away from the free end 23 of the tube. Thus, the thrust member 3 is urged in the direction of that end 24 of the tube 11 with force, which is approximated to the first joint 6. Since in the installed state, the first lever axis 7 is arranged vertically below the first arm axis 5, is from an intermediate position according to FIG. 3 which corresponds to the dead position of the holding element, in which the first arm axis 5, the first lever axis 7 and the second lever axis 9 lie on a common plane, generates a torque in the direction of the open position of the holding element.

Gas springs have a very flat spring characteristic compared to coil springs on, so that the force generated by the gas spring changes only very slightly with a change in the travel or the stroke. In particular, by the use of a gas spring, the torque in the direction of the open position is matched to the lid weight such that the cover is held in any desired position between the intermediate position and the open position.

In principle, it is also conceivable that the first lever axis 7 is arranged vertically above the first arm axis 5. In this case, however, the gas spring 14 must be supported on the first joint 6 approximate end 24 of the arm and the pusher 3 to urge the pusher 3 toward the free end 23 of the tube 11. In this case, however, the lever 2 would have to be designed significantly longer in order to provide sufficient space between the thrust element 3 and the end 24 of the tube for the gas spring 14 can.

Furthermore, adjusting means 4 are provided, which comprise a support element 16, which has a base element 17 and a carriage 18. The base member 17 carries the first hinge 6, whereas the carriage 18 carries the second hinge 8. The carriage 18 is adjustable relative to the support element 16 on a guide 19 along an adjustment axis 20. As a result, the distance between the first joint 6 and the second joint 8 or between the first arm axis 5 and the first lever axis 7 can be varied in order to adapt the retaining element to different cover weights. Preferably, the adjustment axis 20 is aligned parallel or approximately parallel to the thrust axis 12 when the arm 1 is in the intermediate position (dead center).

The support member 16 is fixed to a mounting plate 21. The mounting plate 21, the base member 17 and the carriage 18 thus form a structural unit. The mounting plate 21 is in turn adjustably fastened to a mounting plate, not shown, wherein the mounting plate can be attached directly to a side wall of a cabinet housing.

For pivotally securing the free end 23 of the arm 1 to a lid, the arm 1 has fastening means 22.

The FIGS. 5 to 7 show the holding element according to the FIGS. 1 to 4 in an application in which a lid 25 of a cabinet 26 is not directly pivotally attached to a cabinet housing 27 of the cabinet 26. This is held exclusively by the retaining element. FIG. 5 shows the retaining element in the closed position, FIG. 6 in the intermediate position and FIG. 7 in the open position.

The mounting plate 21 of the holding member is fixed to a mounting plate 28 such that the mounting plate 21 can be adjusted vertically and then fixed. the attachment plate 28 is fixed to a side wall 29 of the cabinet 26.

On the mounting plate 28, a control arm 30 is further pivotally mounted about a first control arm axis 31. The free end of the arm 1 is fastened by means of the fastening means 22 in the form of a bore about a second arm axis 32 pivotally mounted on the cover 25. Likewise, the control arm 30 is pivotally attached to the lid 25 about a second control arm axis 33. This purpose, a fastener 34 to which both the arm 1 and the control arm 30 are pivotally mounted, wherein the fastener 34 is fixed to an inner side 35 of the lid. The fastening element 34 has for this purpose a first bore 36 to which the arm is pivotally mounted. Further, a second bore 37 and a third bore 38 are provided, which serve for pivotally connecting the control arm 30. In the FIGS. 5 to 7 the control arm 30 is pivotally attached to the second bore 27. The distances between the arm axes 5, 32 and control arm axes 31, 33 are coordinated with one another such that the cover, as in FIG. 7 can be seen over the top bottom 39 of the cabinet 26 oscillates away.

If, however, the control arm 30 pivotally connected to the third bore 38 with the fastener 34 and thus with the lid 25, the distances of the axes 5, 31, 32, 33 are coordinated such that the lid 25, as in FIG. 10 can be seen, adjusted in parallel. FIG. 8 shows the retaining element in the closed position, FIG. 9 in the intermediate position and FIG. 10 in the open position.

The FIGS. 11 to 13 show the holding element according to the FIGS. 1 to 4 in a Another application in which the lid 25 is designed as a folding lid with a first lid member 40 and a second lid member 41. The first cover element 40 is directly pivotably attached to a cabinet housing 27 of the cabinet 26. The second cover element 41 is pivotally connected to the first cover element 40 via hinges 42. FIG. 11 shows the retaining element in the closed position, FIG. 12 in the intermediate position and FIG. 13 in the open position.

The retaining element has no mounting plate, but is attached directly to the mounting plate 21 on the side wall 29 of the cabinet 26. In order to adjust the holding element vertically, however, a mounting plate can be provided.

Furthermore, in contrast to the previous application examples no control arm is required. The arm 1 of the holding element is pivotally mounted directly at the lower end of the second lid member 41.

LIST OF REFERENCE NUMBERS

1

poor

2

lever

3

push element

4

adjusting

5

first arm axis

6

first joint

7

first lever axis

8th

second joint

9

second lever axis

10

sliding surface

11

pipe

12

thrust axis

13

piston rod

14

gas spring

15

piston

16

supporting member

17

base element

18

carriage

19

guide

20

adjustment axis

21

mounting plate

22

fastener

23

free end

24

The End

25

cover

26

cabinet

27

cabinet housing

28

mounting plate

29

Side wall

30

control arm

31

first control arm axis

32

second arm axis

33

second control arm axis

34

fasteners

35

inside

36

first hole

37

second hole

38

third hole

39

topsoil

40

first cover element

41

second cover element

42

hinge

43

joint part

44

mounting boss

45

pivotal hole

46

pivot pin

Claims (16)

1. A retaining element, in particular for a cabinet lid, designed as a four-joint-linkage in the form of an eccentric sliding crank drive, comprising
   an arm (1) as a slider link of the sliding crank drive and adapted to be pivotally connected to a cabinet housing (27) about a first arm axis (5) of a first joint (6) between an open position and a closing position and adapted to be pivotally connected to the lid,
   a lever (2) as a crank of the sliding crank drive and adapted to the pivotally connected to cabinet housing (27) about a first lever axis (7) of a second joint (8),
   a slider element as a slider (3) of the sliding crank drive and adapted to be guided slidably along a slider axis (12) on the arm (1) wherein lever (2) is pivotally connected to slider element (3) about a second lever axis (9) and wherein the slider axis (12) intersects the first arm axis (5) at a distance, and
   a force element (14) which is supported against the arm (1) and against the slider element (3) and acts upon these with a force.
2. The retaining element according to Claim 1,
   characterized in
   that adjusting means (16) are provided by means of which the position of at least one of the joints (6, 8) is adjustable.
3. The retaining element according to one of the Claims 1 or 2,
   characterized in
   that a support member (16) is provided carrying the first joint (6) and the second joint (8) and being connectable at least indirectly to the cabinet housing (27).
4. The retaining element according to Claim 3,
   characterized in
   that the support member (16) comprises a base element (17) and a carriage (18),
   that the base element (17) has a guideway (19) along which the carriage (18) is movable, and
   that one of the joints (6) is disposed on the base element (17) and the other joint (8) is disposed on the carriage (18).
5. The retaining element according to Claim 4,
   characterized in
   that the first joint (6) is disposed on the base element (17) and the second joint (8) is disposed on the carriage (18).
6. The retaining element according to one of the Claims 3 to 5,
   characterized in
   that a fastening plate (28) is provided to which the support member (16) is movably connected and which is connectable to cabinet housing (27).
7. The retaining element according to Claim 6,
   characterized in
   that the support member (16) is connected to a mounting plate (21) slidably arranged along a guideway of the fastening plate (28).
8. The retaining element according to one of the Claims 1 to 7,
   characterized in
   that the slider element (3) is slidably guided on the arm (1) along the slider axis (12).
9. The retaining element according to Claim 8,
   characterized in
   that the arm (1) has a tube (11) in which the slider element (3) is slidably guided.
10. The retaining element according to one of the Claims 1 to 9,
    characterized in
    that the arm (1) in the open position is retained in this position by the force element (14).
11. The retaining element according to one of the Claims 1 to 10,
    characterized in
    that the arm (1) in the closing position is retained in this position by the force element (14).
12. The retaining element according to one of the Claims 1 to 11,
    characterized in
    that the force element is a gas spring (14).
13. The retaining element according to one of the Claims 1 to 12,
    characterized in
    that the retaining element is designed for a lid (25) which is pivotally connected to the cabinet housing (27) of the cabinet (26); and
    that the arm (1) is adapted to be pivotally and slidably connected to the lid (25) about a second arm axis (32) of a third joint.
14. The retaining element according to one of the Claims 1 to 12,
    characterized in
    that the retaining element is designed for a lid (25) which is not directly connected to the cabinet housing (27) of the cabinet (26),
    that the arm (1) is adapted to be pivotally and slidably connected to the lid (25) about a second arm axis (32) of a third joint,
    that the retaining element has a control arm (30) adapted to be connected to the cabinet body (27) about a first control arm axis (31) of a fourth joint, and
    that the control arm (30) is adapted to be pivotally connected to the lid (25) about a second control arm axis (33) of a fifth joint.
15. The retaining element according to Claim 14,
    characterized in
    that the retaining element comprises a fastening element (34) to which are pivotally connected the arm (1) about the second arm axis (32) and the control arm (30) about the second control arm axis (33), wherein the fastening element (34) is connectable to the lid (25).
16. The retaining element according to one of the Claims 1 to 12,
    characterized in
    that the retaining element is designed for a lid (25) in the form of a folding lid having a first lid member (40) and a second lid member (41) wherein the first lid member (40) is pivotally connected to the cabinet housing (27) and the second lid member (41) is pivotally connected to the first lid member (40), and
    that the arm (1) is adapted to be pivotally connected to the second lid member (41) of lid (25) about a second arm axis (32) of a third joint.

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