DE102008025265B4 - folding cover - Google Patents

Abstract

Folding cover, which is arranged to open at the top and adjustably fastened between a open position and a closed position on a body (2) of a cabinet comprising a first cover element (4), a second cover element (42) about a folding axis (49) is pivotally connected to the first cover element (4), at least one cover plate (47) with a first support arm (5) pivotable about a first carcass axis (7) on a body side first fitting part (1) and about a first cover axis (8) is fastened to a second fitting part (3) fastened to the first cover element (4), and to a second support arm (6) pivotable about a second carcass axis (9) pivotably on the first fitting part (1) and about a second cover axis (10) is attached to the second fitting part (3), at least one control arm (50) about a first control axis (51) pivotally on the body (2) and about a second control axis (52) pivotally fastened to the second cover element (42) gt is, wherein the first cover element (4) is pivotally mounted on the body (2) exclusively by means of the at least one lid plate (47) such that the at least one lid plate (47) is the only direct link between the first lid element (4) and the Carcass (2) represents, and this determines the kinematics of the first lid member fixed, and wherein in the open position of the folding lid, the first support arm (5) and the second support arm (6) intersect.

Description

The invention relates to a folding lid, which is arranged to open upwardly and adjustably fastened between an open position and a closed position on a body of a cabinet. The folding lid comprises a first cover element, which is pivotally attachable to the body. Further, the folding lid on a second cover member which is pivotally connected about a folding axis with the first cover member. In the closed position of the folding lid, the cover elements are arranged one above the other. When transferring the folding lid in the open position, the first lid member is pivoted upward from the body, wherein the second lid member is also hinged up to the body, so that the folding lid is folded.

DE 298 08 185 U1 discloses a folding lid with a first lid member and a second lid member, which are pivotally connected together. On the body, a cover plate (gas spring) is provided, which serves to lift the folding lid. The first cover element is connected to the body via a hinge. The kinematics of the first cover element is thus predetermined via the hinge. The second cover element is pivotally attached via a hinge, which is guided vertically on a rail of the body.

US 3,698,464 shows a folding lid with a first lid member which is connected via hinges with a body, and a second lid member which is pivotally connected to the first lid member. A control arm is both pivotally mounted on the body and pivotally mounted on the second cover member. To lift the lid member is a cover plate in the form of a gas spring, which is pivotally mounted on the one hand on the body and on the other hand pivotally mounted on a support arm which is fixedly mounted on the first cover member.

From the DE 101 45 856 B4 a folding lid is known in which the upper first cover element via hinges directly pivotally attached to the body. A lid plate is attached to the body and has a driven actuator arm which is pivotally mounted on the body and pivotally attached to the lower second lid member.

Object of the present invention is to propose a folding lid, which is simple.

The object is achieved by a folding lid, which is arranged to open up and adjustably fastened between an open position and a closed position on a body of a cabinet, comprising
a first cover element,
a second cover element which is pivotally connected to the first cover element about a folding axis,
at least one cover plate with a first support arm which is pivotally mounted about a first carcass axis on a carcass side first fitting part and about a first lid axis pivotally attached to a first cover member second fitting part, and with a second support arm pivotable about a second carcass axis on the first Fitting part and is pivotally attached to a second cover axis on the second fitting part,
at least one control arm, which is pivotably mounted on the body about a first control axis and pivotable about a second control axis on the second cover element,
wherein the first lid member is pivotally mounted on the body exclusively by means of the at least one lid disc, that the at least one lid plate is the only direct connecting member between the first lid member and the body, and this determines the kinematics of the first lid member fixed, and
wherein in the open position of the folding lid, the first support arm and the second support arm intersect.

Through this solution, hinges between the upper first cover member and the body can be saved. The first cover element is connected exclusively via the at least one cover plate with the body. The cover plate is in this case constructed such that it predetermines the kinematics, that is to say the sequence of movement, of the first cover element in its movement between the closed position and the open position.

The fact that the support arms are articulated to the fitting parts so that they intersect in the open position of the folding lid, there is a particularly good support of the folding lid to keep it over a large angular range in any position.

Preferably, the cover plate comprises a multi-link linkage, such as a four-bar linkage. Thus, certain relative positions of the first cover element and the body can be specified via the cover plate.

To allow the folding lid either z. B. after exceeding a certain intermediate position between the closed position and the open position is automatically moved to the open position or held in any position between the intermediate position and the open position, a power drive may be provided, the at least a portion of the first cover member Schwenkweges from the closed position to the open position in the direction of the open position acted upon.

The cover plate may further comprise:
a lever which is pivotally mounted about a pivot axis on the first fitting part,
an actuating arm, which is connected at a distance to the pivot axis pivotally connected to the lever and which is fastened to a third cover axis pivotally mounted on the second fitting part, and
a power drive, which acts on the lever in a first pivoting direction with force.

It has been found that by the arrangement of the lever, which is acted upon by a power drive, the actuating arm exerts a torque on the folding lid that holds this over a large pivoting range of the folding flap in any position.

Here, the body axes, the lid axes and the pivot axis are arranged parallel to each other.

The power drive may include in concrete a spring accumulator, which is supported on the one hand against the first fitting part and on the other hand against the lever. The spring accumulator may have a compression spring element. The spring accumulator then preferably has a base element, which is arranged pivotably on the body-side first fitting part. On the base element, a locking slide is guided axially, wherein at least one compression spring element is supported on the one hand against the base element and on the other hand against the locking slide and acts on the locking slide in the direction of an extended position. The lock slider is then hinged to the lever.

In order to use one and the same cover plate for different folding lid, in particular folding lid of different weight, can be provided adjusting means for adjusting the force application point at which the spring accumulator acts on the lever.

The adjusting means may comprise an adjusting lever which is pivotally mounted on the lever and which is fixable in different pivotal positions relative to the lever, wherein on the adjusting lever of the spring accumulator is pivotally mounted and is supported against it. Thus, the lever is indirectly applied via the adjusting lever with force. In principle, it is also conceivable that the force application point is linearly adjustable. For this purpose, for example, a spindle nut unit would be conceivable.

Preferably, the lever has a first lever portion extending from the pivot axis and a second lever portion opposite to the first lever portion extending from the pivot axis, wherein the actuating arm is pivotally mounted on the first lever portion and the power drive engages the second lever portion. The lever is thus designed as a rocker, which deflects the force from the power drive to the actuating arm.

For pivotal attachment of the lever, this has a central bore, with which it is rotatably mounted on a pin, wherein the pin is connected to the body-side first fitting part.

It can be provided that the lever has a slot which emanates from an outer contour of the lever, starting in the central bore. The slot is arranged such that upon initiation of a force from the actuator arm and the spring accumulator on the lever, the lever with the wall defining the central bore is more strongly braced on the trunnion. Thus, depending on the strength of the forces introduced, the wall is pressed more strongly onto the journal, so that a higher frictional force results. When you open the lid, the force transmitted to the lever is larger, so that a greater friction and ensures even with a slight balance of power between the power drive and the force acting on the lever due to the weight of the folding lid, that the folding lid held in any position. Thus, holding the folding lid in any position is possible over a larger pivoting of the folding lid.

The cover plate may have a damper that dampens the pivotal movement of the folding lid until it reaches the closed position. Here, the damper is preferably arranged such that the pivoting movement of the folding lid is attenuated when closing shortly before reaching the closed position and previously over the largest pivoting angle range an undamped pivoting of the folding lid is possible.

The damper may include a housing connected to the first support arm, wherein a slider is axially adjustable relative to the housing, and wherein the slider is urged to an extended position with force. A stop element is fastened to the first fitting part, with the slide approaching the stop element during the transfer of the folding cover into the closed position until it comes into contact with it and is transferred to an inserted position.

Since the damper is attached to the first support arm, this is pivoted about the first body axis. The stop element has a stop surface which surrounds the first Carcass axis is curved, wherein the course of the stop surface can be adapted to the achievable movement of the folding lid. The damping characteristic, that is, via which pivot angle range of the folding lid is damped and to what extent it is damped, can be varied by changing the course of the stop surface.

The invention will be explained in more detail below with reference to the drawings. Show here

1 a longitudinal section of a cabinet with a folding lid according to the invention in its open position;

2 a longitudinal section of a cabinet according to 1 with a folding lid in its closed position;

3 a side view of the Deckelstellers in the open position and a section of the side wall;

4 a side view of the cover plate according to 3 in an intermediate position;

5 a side view of the cover plate according to 3 in closed position and

6 a side view of the in 3 opposite side of the Deckelstellers in the open position.

1 and 2 show the folding lid in different positions and are described together below. Shown is a corpus 2 with a topsoil 43 , a side wall 44 , a back wall 45 and a floor 46 , On the side wall inside is a cover plate 47 attached, over which a first cover element 4 swiveling with the carcass 2 connected is. The lid plate 47 in this case represents the only link between the first cover element 4 and the body 2 dar. The first cover element 4 is together with a second cover element 42 Part of a folding lid, wherein the second lid member 42 about a hinge 48 around a folding axis 49 pivotable with the first cover element 4 connected is. About a handle 54 , the second cover element 42 is attached, the folding lid between the in 1 shown open position and in 2 move shown closed position. In the closed position, the two cover elements 4 . 42 arranged one above the other in a plane and close the body. The first cover element 4 is in the closed position over the second cover element 42 arranged.

Further, a control arm 50 provided, which is about a first control axis 51 swiveling on the side wall 44 of the body 2 and a second control axis 52 on a fitting 53 the second cover element 42 pivotally connected. The folding axis 49 and the two control axes 51 . 52 are hereby spaced and arranged parallel to each other.

The 3 to 6 show the lid plate 47 in different views and different positions and are described below together.

The lid plate 47 has a first fitting part 1 on that, as in 3 shown on an inside of the body 2 is attached. Furthermore, the cover plate comprises 47 a second fitting part 3 , as well as in 3 shown on the first cover element 4 the folding lid is attached. The first cover element 4 is exclusively via the cover plate 47 directly with the body 2 connected and has no hinges for direct or direct connection to the body. As will be explained later, the first lid member pivots about an axis that moves in space and on the structure of the lid plate 47 depends.

The lid plate 47 has the connection of the first cover element 4 with the body 2 a first support arm 5 and a second support arm 6 on. The first arm 5 is over a first carcass axis 7 pivotable on the body-side first fitting part 2 and a first lid axis 8th pivotable on the cover-side second fitting part 3 attached. The second arm 6 is over a second body axis 9 pivotable on the body-side first fitting part 2 and a second lid axis 10 on the cover-side second fitting part 4 hinged.

The support arms 5 . 6 are not arranged parallel to each other. That means a first level 29 that the first carcass axis 7 and the first lid axis 8th includes, and a second level 30 that the second carcass axis 7 and the second lid axis 8th includes, in a rotation axis 11 to cut. Around this axis of rotation 11 the first cover element rotates 4 , where the axis of rotation 11 moved in the room, like this in the room 3 to 5 can be seen.

So that the first cover element 4 is held in an arbitrary position over the largest possible pivoting range, a drive is provided. This includes a power drive in the form of a spring accumulator 12 , The spring store 12 has a base element 14 on, around a bearing axis 13 pivotable on the body-side first fitting part 2 is attached. On the base element 14 is a lock slider 15 axially along an adjustment axis 16 kept adjustable. The lock slider 15 is by means of compression springs 17 , on the one hand, against the base element 14 and on the other hand against the lock slider 15 supported, acted upon in the direction of an extended position with force. So that the springs 17 not transverse to the adjustment axis 16 bend, is on the lock slider 15 each compression spring 17 a thorn 18 provided in the turns of the coil springs designed as compression springs 17 immerse and the respective compression spring 17 support against lateral bulging.

The drive further comprises a lever 19 that on a cone 22 , which is connected to the body side first fitting part, about a pivot axis 20 is rotatably mounted. This is indicated by the lever 19 a central hole 21 on, with the lever 19 on the cones 22 is plugged. The lever 19 is designed like a rocker and has one of the pivot axis 20 outgoing and approximately radially extending first lever section 23 and one to the first lever portion 23 opposite second lever section 24 on, also from the pivot axis 20 proceeding approximately radially.

At the first lever section 23 is an actuating arm 26 around a third carcass axis 27 swiveling with the lever 19 connected, wherein the third body axis 27 spaced from the pivot axis 20 is arranged. The actuator arm 26 is also a third lid axis 28 pivotable on the cover-side second fitting part 4 attached.

The lock slider 15 of the spring accumulator 12 acts indirectly via a setting lever 25 on the second lever section 24 of the lever 19 one. The adjustment lever 25 is in different rotational positions relative to the lever 19 fixable on this. The lock slider 15 is freely pivotable on the adjusting lever 25 attached. The force action line of the spring accumulator 12 that of the adjustment axis 16 is aligned, which is a clockwise torque as shown in the 3 on the lever 19 is produced. The actuator arm 26 is arranged to counterclockwise a torque as shown in FIG 3 on the lever 19 generated. Here, over the largest possible pivoting range of the first cover element 4 ensures that the torques coming from the spring accumulator 12 and the first lid member 4 on the lever 19 be exercised, cancel each other, so are in equilibrium, so that the first cover element 4 is held in the respective pivot position. The pivoting range in which the first cover element 4 is held in each pivot position, preferably ranges from the open position according to 1 to a dead center position, in which the force line of action 39 the Stellarms 26 , along the force of the actuator arm 26 on the second fitting part 3 is initiated, with the axis of rotation 11 cuts (this corresponds approximately to the pivot position according to 4 ).

Over the swivel angle range from the open position to the dead center position crosses the force line of action 39 the Stellarms 26 the axis of rotation 11 around which the first cover element 4 rotates, with such a distance, that a clockwise torque as shown by 3 on the first cover element 4 is produced. The generated torque acts on the first cover element 4 thus in the direction of the open position with torque. In the dead center position of the first cover element 4 cuts the force line of action 39 the Stellarms 26 the axis of rotation 11 , so from the actuator arm 26 no torque on the first cover element 4 is exercised. Over the swivel angle range from the dead center position to the closed position, the force line of action crosses 39 the Stellarms 26 the axis of rotation 11 so far, that a torque in the counterclockwise direction as shown 5 on the first cover element 4 is produced. The generated torque acts on the first cover element 4 thus in the direction of the closed position with torque. Thus acts in a swivel angle range shortly before reaching the closed position, a tightening torque on the first cover element 4 so that the first cover element 4 securely held in the closed position.

For adjusting the torque of the spring accumulator 12 on the lever 19 is exercised, is the adjustment lever 25 around a setting axis 33 swiveling on the lever 19 appropriate. The distance between the connection point of the spring accumulator 12 on the adjustment lever 25 and the pivot axis 19 can thus be adjusted. The effective lever arm, with that of the spring accumulator 12 Torque on the lever 19 is generated, can be changed.

To adjust the position of the adjusting lever 25 serves an adjusting screw 31 in a threaded hole 32 the lever 19 is screwed. The adjusting screw 31 serves as a stop for the adjustment lever 25 , The force action line (adjustment axis 16 ) of the spring accumulator 12 is aligned so that the adjustment lever 25 in the counterclockwise direction as shown in FIG 3 is acted upon by a torque. The adjusting screw 31 supports the adjusting lever 25 against a counterclockwise rotation. By adjusting the screwing depth of the adjusting screw 31 inside the tapped hole 32 lets the position of the stopper, which is here through the free end of the adjusting screw 31 is shown, and thus the pivotal position of the adjusting lever 25 change. Basically, the adjustment lever 25 Of course, be applied in the other direction with torque and the adjusting screw 31 the adjustment lever 25 support accordingly in the other direction. Also conceivable are locking means which the adjustment lever 25 completely on the lever 19 fix.

The lever 19 has a slot 40 on, that of an outer contour 41 of the lever 19 starting radially to the pivot axis 20 runs and into the central hole 21 empties. The slot 40 is on the of the spring store 12 and the actuator arm 26 opposite side of the lever 19 arranged. Thus, when force is introduced by the spring accumulator 12 and the actuator arm 26 on the lever 19 the lever 19 so slightly deformed that the central bore 21 narrows. Thus, the lever 19 or the wall of the central bore 21 on the cones 22 curious; excited. The frictional force between the wall of the central bore 21 and the pin 22 is thus increased. This is to ensure that the first cover element 4 is then held over a certain pivot angle range in any position when the torques from the actuator arm 26 due to the dead weight of the first lid member 4 and the spring store 12 on the lever 19 act, do not cancel exactly.

At the first support arm 5 is a damper 34 intended. Preferably, it is a damper 34 , the one housing 35 having, with the first support arm 5 connected is. In the case 35 is a slider 36 held axially adjustable, wherein the slider 36 to one in 3 shown ejected position is acted upon with force. This can serve spring means in the housing 35 are arranged and on the one hand against the housing 35 and on the other hand against the slider 36 are supported. On the body side first fitting part 2 is a stop element 37 attached, that is a stop surface 38 having. In the open position ( 3 ) of the first cover element 4 is the slider 35 not in contact with the stop surface 38 , When transferring the first cover element 4 in the closed position ( 5 ) the slider approaches 36 the stop surface 38 until it comes to this plant. The slider 36 preferably only then comes with the stop surface 38 in abutment when the first cover element 4 between the dead center position and the closed position, that is, when a tightening torque on the first cover element 4 is exercised. After the slider 36 with the stop surface 38 has come into contact, the slider is 36 upon further pivoting of the first cover element 4 until reaching the closed position against the spring force in the housing 35 pushed in, leaving the suit of the first cover element 4 to the body 2 is dampened. The damper 34 may have further damping means. So the damper z. B. be designed as a hydraulic damper.

LIST OF REFERENCE NUMBERS

1

first fitting part

2

corpus

3

second fitting part

4

first cover element

5

first support arm

6

second support arm

7

first carcass axis

8th

first lid axis

9

second body axis

10

second lid axis

11

axis of rotation

12

spring

13

bearing axle

14

base element

15

lock slider

16

adjustment axis

17

compression spring

18

mandrel

19

lever

20

swivel axis

21

central hole

22

spigot

23

first lever section

24

second lever section

25

adjustment

26

actuating arm

27

third body axis

28

third lid axis

29

first floor

30

second level

31

adjustment

32

threaded hole

33

adjustment axis

34

damper

35

casing

36

pusher

37

stop element

38

stop surface

39

Force action line of the actuator arm

40

slot

41

outer contour

42

second cover element

43

topsoil

44

Side wall

45

rear wall

46

ground

47

cover plate

48

hinge

49

fold axis

50

control arm

51

first control axis

52

second control axis

53

fitting

54

Handle

Claims (15)

Faltdeckel which is arranged to open upwards and between an open position and a closed position on a carcass ( 2 ) of a cabinet is adjustably fastened, comprising a first cover element ( 4 ), a second cover element ( 42 ) around a folding axis ( 49 ) with the first cover element ( 4 ) is pivotally connected, at least one cover plate ( 47 ) with a first support arm ( 5 ), which around a first body axis ( 7 ) pivotable on a body-side first fitting part ( 1 ) and a first lid axis ( 8th ) pivotally on one of the first cover element ( 4 ) fastened second fitting part ( 3 ), and with a second support arm ( 6 ), which around a second carcass axis ( 9 ) pivotable on the first fitting part ( 1 ) and a second lid axis ( 10 ) pivotable on the second fitting part ( 3 ), at least one control arm ( 50 ) around a first control axis ( 51 ) pivotable on the body ( 2 ) and a second control axis ( 52 ) pivotally on the second cover element ( 42 ), wherein the first cover element ( 4 ) exclusively by means of the at least one cover plate ( 47 ) on the body ( 2 ) is pivotally mounted, that the at least one cover plate ( 47 ) the only direct link between the first cover element ( 4 ) and the body ( 2 ), and this determines the kinematics of the first lid member fixed, and wherein in the open position of the folding lid, the first support arm ( 5 ) and the second support arm ( 6 ). Folding cover according to claim 1, characterized in that the cover plate ( 47 ) comprises a multi-link linkage. Folding cover according to one of claims 1 or 2, characterized in that the cover plate ( 47 ) a power drive ( 12 ) having the first cover element ( 4 ) is acted upon at least over a part of the pivoting path from the closed position to the open position in the direction of the open position. Folding cover according to one of claims 1 to 3, characterized in that the cover plate ( 47 ) comprises: a lever ( 19 ), which is about a pivot axis ( 20 ) pivotable on the first fitting part ( 1 ), an actuator arm ( 26 ), which is at a distance from the pivot axis ( 20 ) pivotable with the lever ( 19 ) and which is connected to a third cover axis ( 28 ) pivotable on the second fitting part ( 3 ), and a power drive ( 12 ), the lever ( 19 ) acted upon in a first pivoting direction with force. Folding cover according to claim 4, characterized in that the body axes ( 7 . 9 ), the cover axes ( 8th . 10 ) and the pivot axis ( 20 ) are arranged parallel to each other. Folding cover according to one of claims 4 or 5, characterized in that the power drive is a spring accumulator ( 12 ), on the one hand against the first fitting part ( 1 ) and on the other hand against the lever ( 19 ) is supported. Folding cover according to claim 6, characterized in that the spring accumulator ( 12 ) a compression spring element ( 17 ). Folding cover according to one of claims 6 or 7, characterized in that adjustment means ( 25 ) for adjusting the force application point at which the spring accumulator ( 12 ) on the lever ( 19 ), are provided. Folding cover according to claim 8, characterized in that the adjusting means a setting lever ( 25 ) pivotally mounted on the lever ( 19 ), and in different pivotal positions relative to the lever ( 19 ) and that on the adjusting lever ( 25 ) the spring store ( 12 ) is pivotally mounted. Folding cover according to one of claims 4 to 9, characterized in that the lever ( 19 ) one from the pivot axis ( 20 ) outgoing first lever section ( 23 ) and one opposite the first lever section ( 23 ) from the pivot axis ( 20 ) outgoing second lever section ( 24 ), wherein the actuating arm ( 26 ) on the first lever section ( 23 ) is pivotally mounted and the power drive ( 12 ) on the second lever section ( 24 ) attacks. Folding cover according to claim 10, characterized in that the lever ( 19 ) a central bore ( 21 ), with which he on a pin ( 22 ) is rotatably mounted, wherein the pin ( 22 ) with the first fitting part ( 1 ) connected is. Folding cover according to claim 13, characterized in that the lever ( 19 ) a slot ( 40 ), which of an outer contour ( 41 ) of the lever ( 19 ) into the central bore ( 21 ) opens. Folding cover according to claim 12, characterized in that the slot ( 40 ) is arranged such that upon the introduction of a force from the actuator arm ( 26 ) and from the spring store ( 12 ) in the lever ( 19 ) the lever ( 19 ) with the wall facing the central bore ( 21 ), on the pin ( 22 ) is tightened. Folding cover according to one of claims 4 to 9, characterized in that a damper ( 34 ) is provided, which dampens the pivotal movement of the folding lid until it reaches the closed position. Folding cover according to claim 14, characterized in that the damper ( 34 ) a housing ( 35 ), which with the first support arm ( 5 ), that a slider ( 36 ) relative to the housing ( 35 ) is axially adjustable, wherein the slide ( 36 ) is applied to an extended position with force, and that a stop element ( 37 ) at the first fitting part ( 2 ) is attached, wherein the slide ( 36 ) when transferring the folding lid in the closed position the stop element ( 37 ) approaches until it comes to this plant and is transferred to an inserted position.

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