WO2009143980A1

WO2009143980A1 - Folding cover

Info

Publication number: WO2009143980A1
Application number: PCT/EP2009/003559
Authority: WO
Inventors: Artur Hirtsiefer
Original assignee: Huwil-Werke Gmbh Möbelschloss- Und Beschlagfabriken
Priority date: 2008-05-27
Filing date: 2009-05-19
Publication date: 2009-12-03
Also published as: EP2307644B8; DE102008025265A1; DE102008025265B4; PL2307644T3; DK2307644T3; ES2404333T3; EP2307644B1; EP2307644A1

Abstract

A folding cover which is arranged such that it opens upwards and can be fastened to a body (2) of a cupboard in a manner such that it can be adjusted between an open position and a closed position, the folding cover comprising a first cover element (4), a second cover element (42), which is connected to the first cover element (4) in a manner such that it can pivot about a folding axis (49), at least one cover adjustor (47), at least one control arm (50) which is fastened to the body (2) in a manner such that it can pivot about a first control axis (51) and is fastened to the second cover element (42) in a manner such that it can pivot about a second control axis (52), wherein the first cover element (4) is fastened pivotably to the body (2) exclusively by means of the at least one cover adjustor (47), and the at least one cover adjustor (47) constitutes the sole connecting member between the first cover element (4) and the body (2), wherein the first supporting arm (5) and the second supporting arm (6) intersect in the open position of the folding cover.

Description

folding cover

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 into the open position, the first lid element is pivoted upward away from the body, the second lid element likewise being pivoted upwards towards the body, so that the folding lid is folded up.

Such a folding lid is known from DE 101 45 856 B4. In the case of the folding cover described there, the upper first cover element is fastened directly to the body by means of hinges. 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 according to the invention by a folding lid, which is arranged to open upwards and can be adjustably fastened between an open position and a closed position on a body of a cabinet, comprising a first lid element, a second cover member which is pivotally connected about a folding axis with the first cover member, at least one cover plate, at least one control arm which is pivotally mounted about a first control axis pivotally mounted on the body and pivotable about a second control axis on the second cover member, wherein the first cover member exclusively by means of the at least one cover plate on the body is pivotally fastened and the at least one cover plate is the only connecting member between the first cover member and the body and wherein intersect in the open position of the folding lid of the first support arm and the second support arm.

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 arrangement of the support arms to each other so that they intersect in the open position of the folding lid, there is a particularly good support of the folding lid to keep this over a large angle range in any position. The support arms are therefore not arranged parallel to each other. This means that an imaginary first plane, which includes the first body axis and the first lid axis, and an imaginary second plane, which includes the second body axis and the second lid axis, intersect in an axis of rotation. Around this axis of rotation, the lid rotates, with the axis of rotation moves in space. In the open position, the axis of rotation is arranged between the first body axis and the first lid axis or between the second body axis and the second lid axis, so that the support arms intersect.

Preferably, the cover plate comprises a multi-link linkage, such as a four-bar linkage. Thus, certain adjustments can be made lativlagen the first cover member and the body can be specified.

To allow the folding lid to be either e. After exceeding a certain intermediate position between the closed position and the open position is automatically moved automatically into the open position or held in any position between the intermediate position and the open position, a power drive can be provided, the at least over a part of the pivoting of the Closed position applied to the open position in the direction of the open position.

The cover plate may further comprise: a first fitting part connected to the body, a second fitting part connected to the first cover element, a first support arm pivotable about a first body axis on the first fitting part and about a first lid axis is pivotally mounted on the second fitting part, a second support arm which is pivotally mounted about a second body axis on the first fitting part and about a second lid axis pivotally mounted on the second fitting part, a lever which is pivotally mounted about a pivot axis on the first fitting part, an actuating arm, the pivotally connected to the lever at a distance from the pivot axis and which is pivotally mounted to the second fitting part about a third cover axis, 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 parallel arranged 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 adjustment means may comprise an adjustment lever which is pivotally mounted on the lever and which is securable in different pivotal positions relative to the lever, wherein the spring accumulator is pivotally mounted on the adjustment lever 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 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 lifting portion. The lever is thus designed as a rocker, which deflects the force from the power drive to the actuating arm.

For pivotal mounting 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 Faltdeckeis 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 body axis is curved, wherein the course of the stop surface can be adapted to the desired movement of the folding lid. The damping characteristic, that is to say via which pivoting angle range the folding cover is damped and to what extent it is damped, can be varied by changing the course of the stop face.

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

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

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

Figure 3 is a side view of the cover plate in the open position and a section of the side wall;

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

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

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

Figures 1 and 2 show the folding lid in different positions and will be described together below. Shown is a body 2 with a top bottom 43, a side wall 44, a rear wall 45 and a bottom 46. On the side wall inside a lid plate 47 is fixed, via which a first lid member 4 is pivotally connected to the body 2. The cover plate 47 in this case represents the only connecting link between the first cover element 4 and the body 2 The first cover element 4 together with a second cover element 42 is part of a folding lid, wherein the second lid element 42 is pivotably connected to the first lid element 4 via a hinge 48 about a folding axis 49. Via a handle 54, which is fastened to the second cover element 42, the folding lid can be moved between the open position shown in FIG. 1 and the closed position shown in FIG. In the closed position, the two cover elements 4, 42 are arranged one above the other in a plane and close the body. The first cover element 4 is arranged in the closed position over the second cover element 42.

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

Figures 3 to 6 show the cover plate 47 in different views and different positions and will be described together below.

The cover plate 47 has a first fitting part 1, which, as shown in Figure 3, is secured to an inner side of the body 2. Furthermore, the cover plate 47 comprises a second fitting part 3 which, as likewise shown in FIG. 3, is fastened to the first cover element 4 of the folding cover. The first cover element 4 is connected exclusively via the cover plate 47 with the body 2 and has no hinges. As will be explained later, the first lid member pivots about an axis that moves in space and depends on the structure of the lid plate 47.

The cover plate 47 has a first support arm 5 and a second support arm 6 for connecting the first cover element 4 to the carcass 2. The first support arm 5 is pivotably attached to the body-side first fitting part 2 via a first carcass axis 7 and pivotable about a first cover axis 8 on the cover-side second fitting part 3. The second support arm 6 is pivotable about a second body axis 9 pivotally on the body-side first fitting part 2 and about a second Deckelach- se 10 pivotally attached to the cover-side second fitting part 4.

The support arms 5, 6 are not arranged parallel to each other. This means that a first plane 29, which includes the first body axis 7 and the first lid axis 8, and a second plane 30, which includes the second body axis 7 and the second lid axis 8, intersect in an axis of rotation 11. Around this axis of rotation 11, the first cover member 4 rotates, wherein the axis of rotation 11 moves in space, as can be seen in Figures 3 to 5.

So that the first cover element 4 is held over as large a pivoting range as possible in any position, a drive is provided. This comprises a power drive in the form of a spring accumulator 12. The spring accumulator 12 has a base member 14 which is pivotally mounted about a bearing axis 13 on the body-side first fitting part 2. On the base member 14, a locking slide 15 is held axially adjustable along an adjustment 16. The lock slider 15 is acted upon by means of compression springs 17, which are supported on the one hand against the base member 14 and on the other hand against the lock slider 15, in the direction of an extended position with force. So that the compression springs 17 do not buckle transversely to the adjustment axis 16, a mandrel 18 is provided on the adjusting slide 15 per compression spring 17, which dive into the turns of the compression springs 17 designed as helical springs and support the respective compression spring 17 against lateral bulging.

The drive further comprises a lever 19 which is rotatably mounted on a pin 22 which is connected to the body-side first fitting part, about a pivot axis 20. For this purpose, the lever 19 has a central bore 21, with which the lever 19 is placed on the pin 22. The lever 19 has a rocker-like design and has a first lever section 23 extending from the pivot axis 20 and extending approximately radially, and a second lever section 24 opposite the first lever section 23, which also extends approximately radially from the pivot axis 20.

At the first lever portion 23 is an actuating arm 26 about a third body axis 27th pivotally connected to the lever 19, wherein the third body axis 27 spaced from the pivot axis 20 is arranged. The actuating arm 26 is also fastened to the cover-side second fitting part 4 so as to be pivotable about a third cover axis 28.

The adjusting slide 15 of the spring accumulator 12 acts indirectly via an adjusting lever 25 on the second lever portion 24 of the lever 19 a. The adjustment lever 25 is fixed in different rotational positions relative to the lever 19 at this. The lock slider 15 is freely pivotally mounted on the adjustment lever 25. The force action line of the spring accumulator 12, which corresponds to the adjustment axis 16, is oriented in such a way that a torque is generated in a clockwise direction as shown in FIG. 3 on the lever 19. The actuating arm 26 is arranged such that it generates a torque in the counterclockwise direction as shown in FIG. 3 on the lever 19. In this case, it is ensured over the largest possible pivoting range of the first cover element 4 that the torques which are exerted on the lever 19 by the spring accumulator 12 and the first cover element 4 cancel each other out, ie are in equilibrium, so that the first cover element 4 in FIG the respective pivot position is held. The pivoting range, in which the first cover element 4 is held in each pivot position, preferably extends from the open position according to FIG. 1 to a dead center position in which the force action line 39 of the actuating arm 26 moves along the force from the actuating arm 26 to the second fitting part 3 is introduced, with the axis of rotation 11 intersects (this corresponds approximately to the pivot position shown in Figure 4).

Over the swivel angle range from the open position to the dead center position, the line of action 39 of the actuating arm 26 intersects the axis of rotation 11 about which the first cover element 4 rotates so far that a clockwise torque as shown in FIG. 3 is generated on the first cover element 4 becomes. The generated torque thus acts on the first cover element 4 in the direction of the open position with torque. In the dead center position of the first lid member 4, the force action line 39 of the actuator arm 26 intersects the axis of rotation 11, so that no torque is exerted on the first lid member 4 by the actuator arm 26. Over the swivel angle range from the dead center position to the closed position, the force action line 39 of the actuating arm 26 crosses the axis of rotation 11 so far away that a torque is generated in the counterclockwise direction as shown in FIG 5 on the first cover member 4. The generated torque thus acts on the first cover element 4 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 member 4, so that the first cover member 4 is securely held in the closed position.

To adjust the torque exerted by the spring accumulator 12 on the lever 19, the adjusting lever 25 is pivotally mounted about an adjustment axis 33 at He- at 19. The distance between the connection point of the spring accumulator 12 on the adjusting lever 25 and the pivot axis 19 can thus be adjusted. The effective lever arm, with the spring memory 12 torque is generated on the lever 19, can be changed.

To adjust the position of the adjusting lever 25 is an adjusting screw 31 which is screwed into a threaded bore 32 of the lever 19. The adjustment 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 such that the adjustment lever 25 is acted upon in the counterclockwise direction as shown in FIG 3 with a torque. The adjusting screw 31 supports the adjusting lever 25 against rotation in the counterclockwise direction. By adjusting the depth of engagement of the adjusting screw 31 within the threaded bore 32, the position of the stop, which is here represented by the free end of the adjusting screw 31, and thus change the pivot position of the adjusting lever 25. In principle, the adjusting lever 25 can of course also be acted upon in the other direction with torque and the adjusting screw 31 support the adjusting lever 25 in the other direction accordingly. Also conceivable are locking means which fix the adjusting lever 25 completely on the lever 19.

The lever 19 has a slot 40 which extends radially from an outer contour 41 of the lever 19 to the pivot axis 20 and opens into the central bore 21. The slot 40 is disposed on the side facing away from the spring 12 and the actuator arm 26 of the lever 19. Thus, when force is introduced by the spring accumulator 12 and the actuator arm 26 on the lever 19 of the lever 19 so slightly deformed that the central bore 21 narrows. Thus, the lever 19 and the wall of the central bore 21 is tensioned on the pin 22. 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 member 4 is held over a certain pivot angle range in any position, even if the torques acting on the lever 19 from the actuator arm 26 due to the dead weight of the first cover member 4 and the spring accumulator 12, not cancel exactly.

On the first support arm 5, a damper 34 is provided. Preferably, it is a damper 34 having a housing 35 which is connected to the first support arm 5. In the housing 35, a slider 36 is held axially adjustable, wherein the slider 36 is acted upon to an ejected position shown in Figure 3 with force. For this purpose, serve spring means which are arranged in the housing 35 and on the one hand against the housing 35 and on the other hand against the slide 36 are supported. On the body-side first fitting part 2, a stop element 37 is fastened, which has a stop face 38. In the open position (Figure 3) of the first lid member 4, the slider 35 is not in abutment with the stop surface 38. When transferring the first lid member 4 in the closed position (Figure 5), the slider 36 approaches the stop surface 38 until it to this in Plant comes. The slider 36 preferably comes into abutment with the abutment surface 38 only when the first cover element 4 is between the dead center position and the closed position, ie when a tightening torque is exerted on the first cover element 4. After the slider 36 has come into abutment with the stop surface 38, the slider 36 is inserted into the housing 35 against the spring force during further pivoting of the first cover member 4 until reaching the closed position, so that the suit of the first cover member 4 to the body. 2 is dampened. The damper 34 may include further damping means. For example, the damper may 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 body axis

8 first lid axis

9 second body axis

10 second lid axis

11 axis of rotation

12 spring accumulator

13 bearing axis

14 base element

15 control slide

16 adjustment axis

17 compression spring

18 thorn

19 lever

20 pivot axis

21 central hole

22 cones

23 first lever section

24 second lever section

25 adjustment lever

26 Stellarm

27 third body axis third lid axis first level second level

adjustment

threaded hole

adjustment axis

damper

casing

pusher

stop element

stop surface

Force action line of the actuator arm

slot

Outer contour second cover element

topsoil

Side wall

rear wall

ground

cover plate

hinge

fold axis

Control arm first control axis second control axis

fitting

Handle

Claims

FaltdeckelPatentansprüche

1. Faltdeckel which is arranged to open upwards 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 pivotably connected to the first cover element (4), at least one cover plate (47), and at least one control arm (50) pivotable about a first control axis (51) pivotable on the body (2) and about a second control axis (52) is fastened to the second cover element (42), the first cover element (4) being fastened pivotably to the carcass (2) exclusively by means of the at least one cover plate (47) and the at least one cover plate (47) is the only connecting element between the first cover element (4) ) and the body (2) and wherein in the open position of the folding lid, the first support arm (5) and the second support arm (6) intersect.

2. Faltdeckel according to claim 1,

characterized,

in that the cover plate (47) comprises a multi-link linkage.

rtr-ivrX-riΛM ikinf »ι / nn! c

3. Faltdeckel according to one of claims 1 or 2,

characterized,

in that the cover plate (47) has a force drive (12) which acts on the first cover element (4) at least over part of the pivoting path from the closed position to the open position in the direction of the open position.

4. Faltdeckel according to one of claims 1 to 3,

characterized,

in that the cover plate (47) comprises: a first fitting part (1) which is connected to the body (2), a second fitting part (3) which is connected to the first cover element (4), a first support arm (5) pivotable about a first body axis (7) on the first fitting part (1) and pivotable about a first lid axis (8) on the second fitting part (3), a second support arm (6) pivotable about a second body axis (9) on the first fitting part (1) and about a second lid axis (10) pivotally mounted on the second fitting part (3), a lever (19) which is pivotally mounted about a pivot axis (20) on the first fitting part (1), an actuating arm ( 26) pivotally connected to the lever (19) at a distance from the pivot axis (20) and pivotally mounted to the second fitting part (3) about a third lid axis (28) and a power drive (12) supporting the lever (12). 19) acted upon in a first pivoting direction with force.

5. Faltdeckel according to claim 4,

characterized, in that the body axes (7, 9), the cover axes (8, 10) and the pivot axis (20) are arranged parallel to one another.

6. Faltdeckel according to one of claims 4 to 5,

characterized,

that the power drive comprises a spring accumulator (12), which is supported on the one hand against the first fitting part (1) and on the other hand against the lever (19).

7. Faltdeckel according to claim 6,

characterized,

the spring accumulator (12) comprises a compression spring element (17).

8. Faltdeckel according to any one of claims 6 or 7,

characterized,

in that setting means (25) are provided for adjusting the force application point at which the spring accumulator (12) acts on the lever (19).

9. Faltdeckel according to claim 8,

characterized,

in that the adjustment means comprise an adjustment lever (25) which is pivotally mounted on the lever (19) and which is fixable in different pivotal positions relative to the lever (19) and pivotally mounted on the adjustment lever (25) of the spring accumulator (12) is.

10. Faltdeckel according to one of claims 4 to 9,

characterized,

the lever (19) has a first lever section (23) extending from the pivot axis (20) and a second lever section (24) extending from the pivot axis (20) opposite the first lever section (23), the control arm (26) being at the first Lever portion (23) is pivotally mounted and the power drive (12) on the second lever portion (24) engages.

11. Faltdeckel according to claim 10,

characterized,

that the lever (19) has a central bore (21) with which it is rotatably mounted on a pin (22), wherein the pin (22) is connected to the first fitting part (1).

12. Faltdeckel according to claim 11,

characterized,

in that the lever (19) has a slot (40) which, starting from an outer contour (41) of the lever (19), opens into the central bore (21).

13. Faltdeckel according to claim 12,

characterized,

in that the slot (40) is arranged in such a way that upon the introduction of a force from the actuating arm (26) and the spring accumulator (12) into the lever (19), the lever (19) with the wall defining the central bore (21), is clamped on the pin (22).

14. Faltdeckel according to one of claims 4 to 9,

characterized,

that a damper (34) is provided which damps the pivoting movement of the folding lid until it reaches the closed position.

15. Faltdeckel according to claim 14,

characterized,

in that the damper (34) has a housing (35) connected to the first support arm (5) such that a slide (36) is axially displaceable relative to the housing (35), the slide (36) being in an extended position is acted upon with force, and that a stop element (37) on the first fitting part (2) is fixed, wherein the slide (36) when transferring the folding lid in the closed position approaches the stop member (37) until it comes into contact with this and is transferred to an inserted position.