EP3521542A1 - Cover positioner for furniture - Google Patents

Abstract

Cover plate 1 for a furniture 2 comprising an actuating arm 12 which is pivotally mounted about a first adjusting axis S1 between an open position and a closed position on a base member 13, and a force accumulator 14 which is so coupled to the actuating arm 12, that the actuating arm 12 via at least a part of the pivoting path of the actuating arm 12 is acted upon in the direction of the open position and / or closed position with force, wherein the energy accumulator 14 comprises a flat spring, which is made of a flat material, and wherein the flat spring between the base member 13 and the actuating arm 12 in a plane of the sheet material is resiliently loaded.

Description

The invention relates to a cover plate for a furniture with an actuating arm which is pivotally mounted about a first adjusting axis between an open position and a closed position on a base member, and with a force storage device which is coupled to the actuating arm such that the actuating arm over at least a part the pivoting path of the actuating arm is acted upon in the direction of the open position or closed position with force.

Such a cover plate is from the DE 102 23 026 B3 known. Here, a lock slider is guided linearly displaceable in a housing. The lock slider has a roller which is rotatably mounted on the lock slider. The roller is acted upon in a plant to a control contour of the actuator arm with force. This is done by coil springs, which act on the adjusting slide and thus the roller against the setting contour. A comparable lid plate also shows EP 1 296 011 A1 ,

In certain applications, it may be disadvantageous that these cover plates use coil springs. In order to provide the force required to hold or move a lid, the coil springs have a relatively large diameter. This leads to the fact that the entire cover plate, in the direction of the first pivot axis, relatively thick fails. This means that the cover plate protrudes relatively far into the body interior of the furniture.

The object of the present invention is to provide a cover plate which is as narrow as possible.

The object is achieved by a cover plate for a piece of furniture with an actuating arm, which is about a first adjusting axis between an open position and a closed position is pivotally mounted on a base member, and with a force storage device which is coupled to the actuating arm such that the actuating arm is acted upon by at least part of the pivoting path of the actuating arm in the direction of the open position or closed position with force. The energy accumulator has a flat spring, which is made of a flat material, wherein the flat spring is resiliently loaded between the base member and the actuating arm in a plane of the sheet material.

The flat spring is made of a plate-shaped material and resiliently loaded in the plane of the flat material (plate plane). The flat spring is thus deformed elastically in the plane of the sheet material and not, like a leaf spring, transverse to the plane of the sheet. Thus, a very thin construction of the Deckelstellers is guaranteed.

Here, the flat spring is resilient in plate plane, so that the flat spring takes over their plate thickness addition, no installation space. The plate plane here is the plane which is spanned by the plate-shaped material. Plate thickness means the thickness of the plate-shaped material.

Preferably, the flat spring made of sheet metal is made of a metal material. Thus, standard materials are used, such as steel materials, in particular spring steel, which have proven themselves in the manufacture of spring elements due to their strength and durability.

In one embodiment, the flat spring in the plane of the sheet material may be U-shaped and form a first spring arm and a second spring arm, wherein the first spring arm is connected to the base member and the second spring arm is coupled to the force application with the actuating arm.

The U-shaped flat spring can be designed in a specific embodiment such that the two spring arms are connected to one another via a deflection region.

Here, the first spring arm having a first free end, with which the flat spring with the base member, preferably rotatably connected. Further, the second spring arm having a second free end, with which the flat spring with the Stellarm is coupled. Thus, the largest possible length of the flat spring is used from the first free end to the second free end.

The spring arms can be designed to be tapered to the free ends. The plate thickness does not change here. In addition, the flat spring can be formed tapering from a vertex of the deflection to the free ends in plate plane.

In an exemplary embodiment, the second spring arm is coupled via a coupling device with the actuating arm.

In one embodiment, the coupling device may have a setting contour on the setting arm, which runs at a varying distance from the first setting axis. Here, the coupling device may further comprise a pressure element which is acted upon by the flat spring with force against the control contour.

The pressure element can be arranged, for example, on a pivot arm, which is pivotally connected to the base element, wherein the second spring arm is acted upon against the pivot arm. Thus, degrees of freedom of movement are defined for the flat spring and the coupling device.

The second spring arm can in this case be connected to the swivel arm, preferably rotatable.

In concrete embodiment, the pressure element may be a roller which is rotatably mounted on the pivot arm.

Alternatively, the flat spring in the plane of the sheet material may also be S-shaped or W-shaped. Also conceivable are other shapes, such as a plurality of juxtaposed wave-shaped sections, which are connected to each other at their facing crests, or any lattice structures.

Figur 1

eine perspektivische Darstellung eines Möbels mit einem erfindungsgemäßen Deckelsteller in der Offenstellung mit einer ersten Ausführungsform einer Flachfeder;

Figur 2

eine Teilseitenansicht des Korpus und des Deckelstellers gemäß Figur 1 mit dem Deckelsteller in seiner Schließstellung;

Figur 3

eine perspektivische Darstellung des Deckelstellers gemäß Figur 1 in seiner Offenstellung;

Figur 4

eine Draufsicht einer zweiten Ausführungsform einer Flachfeder in U-Form;

Figur 5

eine Draufsicht einer dritten Ausführungsform einer Flachfeder in S-Form;

Figur 6

eine Draufsicht einer vierten Ausführungsform einer Flachfeder in W-Form;

Figur 7

eine Draufsicht einer fünften Ausführungsform einer Flachfeder in Wellenform; und

Figur 8

eine Draufsicht einer sechsten Ausführungsform einer Flachfeder in einer Gitterform.

A preferred embodiment is explained in more detail below with reference to the drawings. Show here

FIG. 1

a perspective view of a piece of furniture with a cover plate according to the invention in the open position with a first embodiment of a flat spring;

FIG. 2

a partial side view of the body and the Deckelstellers according to FIG. 1 with the cover plate in its closed position;

FIG. 3

a perspective view of the Deckelstellers according to FIG. 1 in its open position;

FIG. 4

a plan view of a second embodiment of a flat spring in a U-shape;

FIG. 5

a plan view of a third embodiment of a flat spring in S-shape;

FIG. 6

a plan view of a fourth embodiment of a flat spring in W-shape;

FIG. 7

a plan view of a fifth embodiment of a flat spring in waveform; and

FIG. 8

a plan view of a sixth embodiment of a flat spring in a lattice shape.

The FIGS. 1 to 3 show a cover plate according to the invention, partially shown mounted in a body of a piece of furniture, the figures will be described together below.

FIG. 1 shows a cover plate 1 mounted in a furniture 2. The furniture 2 comprises a body 3 with two side walls 4, 5, a lower bottom 6 and an upper bottom 7. The side walls 4, 5, the lower bottom 6 and the upper bottom 7 form together with an opening 8, which can be closed by a folding lid 9. In FIG. 1 the folding lid is shown in an open position. The folding lid has an upper lid half 10, which is connected to a horizontally arranged axis in the region of the upper bottom 6 with the body 3 pivotally. The upper lid half 10 is pivotally connected to a lower lid half 11.

On one of the side walls 4, the cover plate 1 is mounted, wherein an actuating arm 12 of the cover plate 1 about a first pivot axis S1 with a base member 13 of the cover plate 1 between an open position ( FIGS. 1 and 3 ) and a closed position ( FIG. 2 ) is pivotally connected. The first pivot axis S1 is arranged horizontally. In addition, the actuating arm 12 is pivotally connected to the lower lid half 11 of the folding lid 9 about a second pivot axis S2, which is arranged parallel to the first pivot axis S1.

In principle, the cover plate 1 can also be connected to a simple cover, that is to say a cover which is not foldable. In addition, the cover plate 1 may also be provided as a fitting, which also serves as a hinge for the lid, so that the lid does not have to be connected via a further hinge with the body.

The base member has a covering plate, which in FIG. 1 is shown. In the FIGS. 2, 3 the covering plate is not shown, so that the inside of the Deckelstellers 1 is visible.

On the base member 13, a force accumulator 14 is provided which is coupled to the actuating arm 12 such that the actuating arm 12 or at least a portion of its pivoting path is acted upon in the direction of the open position and / or the closed position with force. For this purpose, the energy accumulator 14 on a flat spring 15, which is made of a plate-shaped elastic material, preferably made of sheet metal of a metal material. Plattenfömig in this context means that the flat spring in the thickness direction is many times thinner than in a direction transverse to the thickness direction. The flat spring 15 has a first spring arm 16 and a second spring arm 17, which are connected to one another via a deflection section 18. The first spring arm 16 has a first free end 21 and the second spring arm 17 a second free end 22. The two free ends 21, 22 are at least approximately in the same direction.

The first free end 21 of the first spring arm is pivotally connected to the base member 13. For this purpose, the first free end 21 is connected via a rivet 19 with the base member 13, so that the first spring arm 16 can pivot about the rivet 19.

The second free end 22 of the second spring arm 17 is coupled via a coupling device 20 with the actuating arm 12. Here, the flat spring 15 is biased such that acts of the second spring arm 19, a force on the actuating arm 12. In the present case, the two spring arms 16, 17 biased away from each other, so that they exert a spring force on each other.

This means that the flat spring 15 is biased in the plate plane of the plate-shaped material.

The coupling device 20 comprises a mounting unit 24 to which the second free end 22 of the second spring arm 17 is pivotally connected via a pin 23. The mounting unit 24 is fixedly connected to a pivot arm 25 which is pivotally connected to the base member 13 about a third pivot axis S3. The third pivot axis S3 is arranged parallel to the first pivot axis S1 and the second pivot axis S2.

On the mounting unit 24, a roller 27 is rotatably supported via a pin 26. The roller 27 is acted upon by a setting contour 28 of a cam 29 with force, wherein the cam 29 is fixedly connected to the actuating arm 12. The cam 29 is connected in the illustrated embodiment with the actuator arm 12, for example via rivets. However, it is also possible in principle that the cam is an integral part of the actuator arm 12.

Alternatively, the second spring arm 17 also directly, so not via an assembly unit, be coupled to the pivot arm 25. The roller 27 may be arranged directly rotatable on the pivot arm 25. As an alternative to the roller 27, a pressure piece can be held in sliding contact with the adjusting contour 28.

By the spring force of the flat spring 15 and the second spring arm 17, the roller 27 is pressed against the actuating contour element 29.

The control contour 28 has a varying distance to the first pivot axis S1 over its course, so that in this way from the roller 27 a force acts on the actuating arm 12, which causes a torque in the feed direction and / or in the direction of the open position.

The control contour 28 may be formed, for example, such that the radial distance of the control contour 28 to the first pivot axis S1 in the contact region between the roller 27 and the control contour 28 via a pivoting path starting from an intermediate position of the actuating arm 12 between the open position and the closed position in the direction of the open position decreases over an angular travel of the actuator arm 12. Thus, it can be ensured, for example, that the actuating arm 12 is acted upon by a greatest angular travel with a force which generates a moment in the direction of the open position. About the Winkelweg starting from the intermediate position to the closed position, the control contour 28 may have a shape over the course of the radial distance to the first adjusting axis S1 decreases. Thus, a torque is generated via this pivoting, which acts on the actuating arm 12 to the closed position. The adjusting contour 28 can in this case be designed such that the generated torque in each pivot position of the actuating arm 12 corresponds to that counter-torque which is generated by the weight of the cover 9 total, so that the lid 9 is held in any position between the open position and the intermediate position ,

The FIGS. 4 to 8 show exemplary embodiments of flat springs, wherein components or elements that match those of the first embodiment are provided with the same reference numerals and are described in the first embodiment.

FIG. 4 shows a plan view of a flat spring in a U-shape, wherein along the course of the flat spring within the U-shaped portion, a slot 30 is provided, which ensures an increased elasticity of the flat spring in the plane of the plate. FIG. 5 shows a flat spring in S-shape. FIG. 6 shows a flat spring in W-shape. FIG. 7 shows one Flat spring in waveform, in which a plurality of wave-shaped elements 31 are arranged one behind the other, wherein the wave-shaped elements 31 are connected to each other at their adjacent crests 32. The individual elements may be joined together or also connected together in one piece. FIG. 8 shows a flat spring with a grid structure.

LIST OF REFERENCE NUMBERS

1

cover plate

2

Furniture

3

corpus

4

Side wall

5

Side wall

6

lower ground

7

upper ground

8th

opening

9

folding cover

10

upper lid half

11

lower lid half

12

actuating arm

13

base element

14

power storage

15

flat spring

16

first spring arm

17

second spring arm

18

deflecting

19

rivet

20

coupling device

21

first free end

22

second free end

23

bolt

24

assembly unit

25

swivel arm

26

bolt

27

role

28

setting contour

29

Setting contour element

30

slot

31

wavy element

32

Wellenberg

S1

first pivot axis

S2

second pivot axis

S3

third pivot axis

Claims (11)

Cover plate (1) for a furniture (2) comprising
an actuator arm (12) which is pivotally mounted about a first adjusting axis (S1) between an open position and a closed position on a base member (13), and
a force accumulator (14) which is coupled to the actuating arm (12) such that the actuating arm (12) is acted upon by force over at least part of the pivoting path of the actuating arm (12) in the direction of the open position and / or closed position,
characterized,
in that the energy store (14) comprises a flat spring made of a flat material, and
that the flat spring between the base member (13) and the actuating arm (12) is loaded resiliently in a plane of the flat material. Cover plate (1) according to claim 1,
characterized,
that the flat spring (15) is made of sheet metal. Cover plate (1) according to one of claims 1 or 2,
characterized,
that the flat spring in the plane of the flat material is U-shaped and a first spring arm (16) and a second spring arm (17), wherein the first spring arm (16) to the base member (13) and the second spring arm (17 ) is coupled to the force application with the actuating arm (12). Cover plate (1) according to claim 3,
characterized,
that the two spring arms (16, 17) over a deflecting section (18) are connected together. Cover plate (1) according to one of claims 3 or 4,
characterized,
in that the first spring arm (16) has a first free end (21), with which the flat spring (15) is connected to the base element (13), preferably rotatably, and
in that the second spring arm (17) has a second free end (22) with which the flat spring (15) is coupled to the actuating arm (12). Cover plate (1) according to claim 5,
characterized,
in that the second spring arm (17) is coupled to the setting arm (12) via a coupling device (20). Cover plate (1) according to claim 6,
characterized,
in that the coupling device (20) has a setting contour (28) on the adjusting arm (12), which runs at a varying distance from the first adjusting axis (S1), and in that the coupling device (20) also has a pressure element (27) which extends from the Flat spring (15) is acted upon by force against the adjusting contour (28). Cover plate (1) according to claim 7,
characterized,
that the pressure element (27) is arranged on a pivot arm (25), wherein the pivot arm (25) is pivotally connected to the base element (13), and
that the second spring arm (17) is acted upon against the pivot arm (25). Cover plate (1) according to one of claims 7 or 8,
characterized,
that the pressure element is a roller (27) which is rotatably mounted on the pivot arm (25). Cover plate (1) according to one of claims 3 to 9,
characterized,
in that the second spring arm (17) is connected to the swivel arm (25), preferably rotatably. Cover plate (1) according to one of claims 1 to 10,
characterized,
that the flat spring (15) in the plane of the sheet material is S-shaped, W-shaped, wavy or grid-shaped.

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