EP2309086A1 - Holding element for adjusting a cover of a piece of furniture - Google Patents

Abstract

The holding element has a fitting part (1) which is connected with the body of furniture, and another fitting part (2) which is connected with the cover. A carrier arm (5) is fixed around a body axis (7) at the former fitting part and is fixed around a cover axis (8) at the latter fitting part in a swiveling manner. An adjustment lever (25) is fixed between the line of action (16) and another body axis (27) in a swiveling manner.

Description

The invention relates to a holding element, in particular a lid divider, for adjusting a lid of a piece of furniture between a closed position and an open position. The holding element is used to adjust a lid that is not directly connected to a body of the furniture via a hinge.

Such a holding element shows the DE 10 2008 005 463 A1 in which a spring accumulator via the adjusting lever only indirectly acts on the actuating lever. The adjusting lever is pivotally held on the actuating lever about an adjusting axis, wherein the adjusting axis is based on the line of action of the spring accumulator on the side remote from the pivot axis about which the actuating lever is pivotally mounted on the body side fitting part. Here, the adjusting lever is held on an end portion of the operating lever and is inclined in the direction of the pivot axis.

The object of the present invention is to provide a retaining element with a simple structure, which has further improved properties with regard to its adjustability of the Kraflunterstützung the adjustment movement of the lid.

According to the invention this object is achieved by a holding element for adjusting a lid of a piece of furniture between a closed position and an open position comprising a first fitting part, which is connectable to the body of a piece of furniture; a second fitting part connectable to the lid; a first support arm which is pivotally mounted about a first body axis on the first fitting part and pivotable about a first lid axis 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; an operating lever which is pivotally mounted about a pivot axis on the first fitting part; an actuator arm which is pivotally connected at a distance from the pivot axis about a third body axis with the actuating lever and which is pivotally mounted about a third lid axis on the second fitting part; a. Power drive, which is supported on the one hand against the first fitting part and on the other hand, the actuating lever in a first pivoting direction with force applied; and adjusting means for adjusting the line of action of force in which the power drive acts on the operating lever, the adjusting means comprising an adjusting lever and wherein the adjusting lever between the force action line and the third body axis is pivotally mounted

This embodiment has the advantage that the range in which the effective lever arm can be adjusted is significantly increased. About the effective lever arm of the energy storage acts on the actuating lever about the pivot axis. By adjusting the adjusting the force action line of the energy storage is pivoted and thus changed the length of the effective lever arm. The enlargement of the adjustment range is thereby made possible, since the adjustment lever is now effective only in one end region of the actuation arm and is fastened between the force action line of the energy accumulator and the third body axis. Characterized in that the range of the effective lever arm is increased according to the invention, the power drive can be dimensioned smaller, yet to produce the same torque in the pivot axis of the actuating lever. Furthermore, with a larger adjustment range of the effective lever arm, the adjustment of the force action line or of the lever arm can be effected more sensitively, since an adjustment of the force action line by a certain amount relative to a larger effective lever arm results in a relatively smaller change. Also can be increased by the larger effective lever arm, the spectrum of the force generated by the force application of the actuating lever. In this way, covers of a larger weight range can be guided by the holding element according to the invention. The adjusting lever is preferably mounted on the actuating lever, but it can also be provided that the adjusting lever pivotable on the first fitting part is appropriate.

In concretization can be provided that the adjusting lever is pivotally mounted about the pivot axis on the actuating lever. In particular, the actuating lever can be connected via a bearing journal with the first fitting part and the adjusting lever can be secured via the bearing pin on the actuating lever. This results in a simple structure, since a bearing for two levers can be used. Furthermore, in continuation of a favorable design of the actuating lever may have a U-shaped cross-section, in which the adjusting lever is at least partially accommodated.

Advantageously, the power drive is pivotally supported on the one hand on the first fitting part and on the other hand via bearing means against at least one support surface of the adjusting lever and at least one holding surface of the actuating lever. By supporting the power drive to the first fitting part and the bearing means the force action line of the power drive is defined. In this case, a bearing journal can be provided as the bearing means. Preferably, by pivoting the adjusting lever relative to the actuating lever, the distance of the force action line to the pivot axis can be changed. Thus, it is advantageously ensured that the energy accumulator acts directly on the actuating lever and the adjusting lever serves to adjust the effective length of the lever arm.

Preferably, the support surface of the adjusting lever and the holding surface of the operating lever form an acute angle. Here, the support surface is inclined in particular in such a direction in the direction of the pivot axis, that the bearing pin of the power drive is acted upon by a force component against the support surface. Thus, the bearing pin between the support surface and the support surface, which prevents the bearing pin from sliding on the support surface in the direction of the pivot axis, wedged and securely held. It is understood that the support surface of the adjusting lever or the holding surface of the actuating lever can be straight or curved surfaces that run in particular to each other. For example, the retaining surface may be the lateral edge of a slot of the actuating lever, in which the bearing means of the power drive are guided. The slot can run straight or slightly curved be.

According to a preferred embodiment adjusting means are provided, by means of which the adjusting lever is detectable in different pivot positions relative to the actuating lever. Preferably, the adjusting means are arranged on the actuating lever and support the adjusting lever relative to the actuating lever. The adjusting means may be designed in the form of a screw which is held in the operating lever via a thread and acts on the adjusting lever. The adjusting means are preferably arranged between the pivot axis and the force action line of the force accumulator. For good accessibility, the adjusting means can be arranged on the underside of the actuating lever.

The first fitting part preferably has a projection which extends over a base surface in a manner largely parallel, on which the two support arms, the actuation lever and the adjustment lever are mounted. Preferably, the projection is formed from the base plate of the first fitting part. This deformation results in increased strength for the area of the projection. The first fitting part is preferably a sheet-metal forming part.

Preferably, the actuating lever is designed as a sheet metal forming part. This results in a simple structure with cheaper production and installation.

In particular, the actuating arm may have a U-shaped cross section, in which the first support arm is at least partially received. By U-shaped cross-sections, the risk of pinching example of hands or fingers when operating can be reduced if not prevented even in an advantageous manner. The actuator arm is preferably a sheet metal forming part.

To increase the ease of use, a damper may be provided which dampens the pivotal movement of the lid until it reaches the closed position, wherein the damper is received in a housing connected to the first support arm. A detachable damper offers the advantage that, if necessary, the damper can be replaced by a damper with a different characteristic.

In concrete terms, the damper comprises a relative to the housing axially adjustable damping body, which cooperates with a stop element of the first fitting part. Preferably, the stop element is designed in one piece with the first fitting part, resulting in a simple production and the number of components is kept low.

Preferably, the first support arm has a U-shaped cross-section, in which the damper is at least partially received and which is preferably designed as a sheet metal forming part.

On the actuator arm stop means may be provided, on which the first support arm is supported and by means of which a pivot position of the first support arm is adjustable relative to the actuating arm. Preferably, the stop means are arranged displaceably on the actuating arm. By means of the stop means, at least two different positions of the second fitting part relative to a horizontal position can be preset in an advantageous manner. Preferably, the second fitting part is approximately horizontal in a position of the stop means and steeper, for example, by 10 ° in a second position. This adjustability offers advantages in attaching the lid to the second fitting part.

In the open position of the holding element, the stop means support the first support arm in a first displacement position via a first support surface at a first angle and in a second displacement position the first support arm via a second support surface at a second smaller angle.

Figur 1

eine Seitenansicht eines erfinderischen Halteelements in Offenstellung;

Figur 2a, 2b

den Betätigungshebel und den Einstellhebel aus Figur 1 als Einzeldar- stellung in zwei perspektivischen Ansichten;

Figur 3

eine Seitenansicht des Halteelements gemäß Figur 1 in einer Zwischen- stellung;

Figur 4

eine Seitenansicht des Halteelements gemäß Figur 1 in Schließstellung und

Figur 5

eine Seitenansicht der von der in Figur 1 entgegengesetzten Seite des Halteelements in Offenstellung mit schematisch dargestelltem ersten Be- schlagteil.

A preferred embodiment will be explained in more detail with reference to the following drawing figures. Herein show:

FIG. 1

a side view of an inventive retaining element in the open position;

Figure 2a, 2b

the operating lever and the adjustment lever off FIG. 1 as a single representation in two perspective views;

FIG. 3

a side view of the retaining element according to FIG. 1 in an intermediate position;

FIG. 4

a side view of the retaining element according to FIG. 1 in closed position and

FIG. 5

a side view of the in FIG. 1 opposite side of the holding element in the open position with schematically illustrated first fitting part.

The FIGS. 1 to 5 show a holding element according to the invention in different views and different positions and will be described together below.

The holding element has a first fitting part 1, which can be attached to an inner side of a body, not shown, of a piece of furniture. Further, the holding element comprises a second fitting part 2, which can be attached to a cover, not shown, of the furniture. The lid is connected only via the holding element with the body and has no hinges on this. As will be explained later, the lid pivots about an axis that moves in space and depends on the structure of the holding member.

The holding element has to connect the lid to the body a first support arm 5 and a second support arm 6. The first support arm 5 is designed in cross-section as a U-profile and is pivotally attached via a first body axis 7 on the body-side first fitting part 1 and pivotable about a first lid axis 8 on the cover-side second fitting part 2. The second support arm 6 is pivotally mounted on the body-side first fitting part 1 via a second body axis 9 and pivotable about a second cover axis 10 on the cover-side second fitting part 2.

The support arms 5, 6 are not arranged parallel to each other. That means that yourself 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 9 and the second lid axis 10, in a rotation axis 11 intersect. To this axis of rotation 11 1, the lid rotates, wherein the axis of rotation 11 moves in space, as shown in the FIGS. 1 . 3 and 4 can be seen.

So that the cover is held over as large a pivoting range as possible in any position, a power drive in the form of a spring accumulator 12 is provided. The spring accumulator 12 has a base element 14, which is fastened pivotably about a bearing axis 13 on the body-side first fitting part 1. On the base element 14, a locking slide 15 is held axially adjustable along an adjustment axis Here, the adjustment axis defines the force action line 16 of the spring accumulator 12. The lock slider 15 is 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 subjected to an ejected position with force. Thus, the compression springs 17 do not bend transversely to the adjustment axis 16, a mandrel 18 is provided on the locking slide 15 per compression spring 17 which dive into the turns of the coil springs designed as compression springs 17 and support the respective compression spring 17 against lateral bulging.

The drive further comprises an approximately L-shaped operating lever 19, which is designed in cross-section as a U-shaped profile, as in the FIGS. 2a and 2b can be seen. The actuating lever 19 is with its first leg 23 approximately in the middle thereof on a bearing journal 22 which is connected to the body-side first fitting part 1, about a pivot axis 20 is rotatably mounted. The actuating lever 19 has at its first leg 23 through the side walls of the U-shaped profile through holes 21, 21 ', with which the actuating lever 19 is placed on the bearing pin 22. On the first leg 23, an actuating arm 26 is pivotally connected to the actuating lever 19 about a third body axis 27 in an end region, wherein the third body axis 27 is arranged at a distance from the pivot axis 20. The actuator arm 26 is designed as the same as the first support arm 5 as a U-profile and is further attached to a third cover axis 28 pivotally mounted on the cover-side second fitting part 2. In folded state is the first support arm 5 partially sunk in the profile of the actuator arm 26, as in FIG. 4 can be seen.

The second leg 24 has in its two side walls each have a slot 42, 42 ', which are related to each other with respect to the pivot axis 20. The elongated holes 42, 42 'extend in such a way that their distance from the pivot axis 20 increases from the first leg 23 to an end region of the second leg 24. Relative to a line through the pivot axis 20 and the third body axis 27, the elongated holes 42, 42 'extend approximately at an angle of 60 °, whereby a different angle amount can also be provided.

In the U-shaped profile of the operating lever 19, an adjusting lever 25 is also rotatably supported about the pivot axis 20 on the bearing pin 22, as in the FIGS. 2a and 2b can be seen. Thus, the actuating lever 19 and the adjusting lever 25 are pivotable about the pivot axis 20 against each other, wherein the adjusting lever 25 in different pivot positions is infinitely adjustable relative to the actuating lever, as in the FIG. 1 on the one hand and the Figures 3 and 4 on the other hand can be seen. The adjusting lever 25 extends from the bearing pin 22 into the intermediate space of the elongated holes 42, 42 'of the actuating lever 19. To adjust the position of the adjusting lever 25 are adjusting means in the form of an adjusting screw 31 which is screwed into a threaded bore 32 of the actuating lever 19. The adjusting screw 31 serves as a stop for the adjusting lever 25.

The lock slider 15 of the spring accumulator 12 is supported on the adjusting lever 25 and the actuating lever 19 via a bearing pin 43 which is received in the oblong holes 42, 42 '. For this purpose, the adjusting lever 25 forms support surfaces 44, 44 'and the actuating lever 19 in the slots 42, 42' holding surface 45, 45 ', both of which run toward each other in the direction of the pivot axis 20. Here, the support surfaces 44, 44 'inclined in the direction of the pivot axis, so that they wedge together with the support surfaces 45, 45' the bearing pin 43, which otherwise in absence of support to the support surfaces 45, 45 'on the support surfaces 44, 44' would slide in the direction of pivot axis 20.

The force of action line 16 of the spring accumulator 12, which corresponds to the adjustment axis, is aligned such that a clockwise torque as shown in the FIG. 1 via the adjusting lever 25, supported on the operating lever 19, and the adjusting screw 31 is generated on the actuating lever 19. The actuator arm 26 is arranged such that it is loaded by the load of the lid to pressure and a torque in the counterclockwise direction as shown in the FIG. 1 generated on the actuating lever 19. This ensures over the largest possible pivoting range of the lid, that the torques exerted by the spring accumulator 12 on the one hand and the lid on the other hand on the actuating lever 19 cancel each other, so are in balance, so that the lid held in the respective pivot position is. The pivoting range, in which the lid 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 line of action 39 of the actuating arm 26, along which the force is introduced from the actuating arm 26 to the second fitting part 2, with the axis of rotation 11 intersects, which is approximately the pivoting position according to FIG. 3 equivalent.

The first fitting part 1 has a relation to a base plate 3 predominantly parallel projection 4, on which both support arms 5, 6, the actuating lever 19 and the adjusting lever 25 are mounted. The projection 4 is formed from the base plate 3 of the first fitting part 1, so that here for the storage of the support arms 5, 6 and lever 19, 25 results in increased strength.

Over the pivoting angle range from the open position to the dead center position, the line of action 39 of the actuating arm 26 crosses the axis of rotation 11 about which the lid rotates so far apart that a clockwise torque as shown in FIG FIG. 1 is generated on the lid. The generated torque thus acts on the cover in the direction of the open position. In the dead center position of the lid, the force action line 39 of the actuating arm 26 intersects the axis of rotation 11, so that no torque is exerted on the lid by the actuating 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 intersects the axis of rotation 11 at a distance such that a Torque counterclockwise as shown FIG. 4 is generated on the lid. Thus, in a swivel angle range just before reaching the closed position, a tightening torque acts on the lid, so that the lid is securely held in the closed position.

To adjust the torque which is exerted by the spring accumulator 12 via the adjusting lever 25, supported on the actuating lever 19, and the adjusting screw 31 on the actuating lever 19, can be adjusted relative to the actuating lever 19 via the adjusting screw 31 continuously different pivot positions of the adjusting lever 25. By the adjusting lever 25 is pivoted at fixedly assumed operating lever 19 by unscrewing the adjusting screw 31 from the actuating lever 19 in the clockwise direction, the intersection of the support surfaces 44, 44 'and the support surfaces 45, 45' in the direction of the pivot axis 20. This also applies to the Bearing 43, which moves relative to the slots 42, 42 'increasingly on the first leg 23 and thus at a smaller distance from the pivot axis 20 on the support surfaces 44,44' and support surfaces 45, 45 'is supported The distance between the force line of action the spring accumulator 12 on the adjustment lever 25 and the pivot axis 20 can thus be adjusted. The effective lever arm, with the spring memory 12 torque is generated on the actuating lever 19 can be changed.

In addition to this change in the effective lever arm but also a change in the bias of the spring accumulator 12 takes place. By the pivot pin 43 approaches by pivoting the adjusting lever 25 in a clockwise direction relative to the actuating lever 19 of the pivot axis 20, it also increasingly removed from the bearing axis 13 of the spring accumulator 12, so that the compression springs 17 are increasingly relaxed. The fact that according to the invention a larger effective lever arm can be used and at the same time reduces the spring preload with reducing the lever arm or with increasing the lever arm, the spring preload is increased, a larger spring force spectrum can be used. This means that covers of a larger weight range can be supported with the holding element.

On the first support arm 5, a damper 34 is provided. Preferably, it is a damper 34, which has a housing 35 which is detachably connected to the first support arm 5. For this purpose, the housing 35 has a plurality of locking lugs 51, which are positively inserted into hook 52 on the first support arm 5. In the housing 35, a damping body 36 is held axially adjustable, wherein the damping body 36 to a in FIG. 1 shown ejected position is acted upon 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 damping body 36 are supported. The body-side first fitting part 1 integrally forms a stop element 37, which has a stop face 38. In the open position ( FIG. 1 ) of the lid, the damping body 36 is not in contact with the stop surface 38th

When transferring the lid in the closed position ( FIG. 4 ), the damping body 36 approaches the stop surface 38 until it comes to this in abutment. The damping body 36 preferably only comes into abutment with the abutment surface 38 when the cover is between the dead center position and the closed position, ie when a tightening torque is exerted on the cover. After the damping body 36 has come into abutment with the abutment surface 38, the damping body 36 is inserted into the housing 35 during further pivoting of the lid until reaching the closed position against the damper force, so that the suit of the lid is damped against the body. The damper 34 may include further damping means. For example, the damper may be designed as a hydraulic damper.

On the actuating arm 26 stop means 46 are provided, on which the first support arm 5 is supported and by means of which a pivotal position of the first support arm 5 relative to the actuating arm 26 is adjustable. The stop means 46 are slidably disposed on the bottom 49 of the U-shaped actuating arm 26. On the side facing the first support arm 5, the stop means 46 have two support surfaces 47, 48 which extend approximately parallel to the bottom 49 of the actuator arm 26 and of which the first support surface 47 has a greater distance from the bottom 49 than the second support surface 48. Depending on the displacement position, one of the support surfaces 47, 48 is in contact with a support surface 50 of the first support arm 5, which is arranged facing the adjustment arm 26 in the region of the first cover axis 8. If the stop means 46 are displaced into the position, not shown, in the direction of the cover axis 28, in which the second support surface 48 is in contact with the support surface 50 of the first support arm 5, the actuator arm 26 is pivoted closer to the first support arm 5 and the second fitting part 2 about the first lid axis 8 with respect to a horizontal by about 10 ° further pivoted. Here, horizontally means a position in which the lid is in the open position and approximately at a right angle, ie 90 °, to a vertical boundary edge of the first fitting part 1 stands.

LIST OF REFERENCE NUMBERS

1

first fitting part

2

second fitting part

3

baseplate

4

head Start

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 1

axis of rotation

12

spring

13

bearing axle

14

base element

15

lock slider

16

Force action line of the power drive

17

compression spring

18

cathedral

19

actuating lever

20

swivel axis

21, 21 '

drilling

22

pivot

23

first leg

24

second leg

25

adjustment

26

actuating arm

27

third body axis

28

third lid axis

29

first floor

30

second level

31

adjustment

32

threaded hole

34

damper

35

casing

36

damping body

37

stop element

38

stop surface

39

Force action line of the actuator arm

42, 42 '

Long hole

43

pivot

44, 44 '

support surface

45, 45 '

holding surface

46

slings

47

first support surface

48

second support surface

49

ground

50

support surface

51

locking lugs

52

hook

Claims (15)

Holding element for adjusting a cover of a piece of furniture between a closed position and an open position comprising
a first fitting part (1) which can be connected to the body of a piece of furniture, a second fitting part (2) which can be connected to the cover,
a first support arm (5), which is fastened pivotably about a first carcass axis (7) on the first fitting part (1) and pivotably about a first cover axis (8) on the second fitting part (2),
a second support arm (6) which is pivotally attached to the first fitting part (1) about a second carcass axis (9) and to the second fitting part (2) pivotably about a wide cover axis (10),
an actuating lever (19) which is fastened to the first fitting part (1) so as to be pivotable about a pivot axis (20),
an actuator arm (26) which is pivotally connected at a distance from the pivot axis (20) about a third body axis (27) with the actuating lever (19) and is pivotally attached to the second fitting part (2) about a third lid axis (28),
a power drive (12) which is supported on the one hand against the first fitting part (1) and on the other hand, the actuating lever (19) acted upon in a first pivoting direction with force, and
Adjusting means (25) for adjusting the force action line (16) in which the power drive (12) acts on the actuating lever (19), the adjusting means comprising an adjusting lever (25),
characterized,
in that the adjustment lever (25) is pivotally mounted between the force action line (16) and the third body axis (27). Retaining element according to claim 1,
characterized,
in that the adjusting lever (25) is pivotably mounted on the actuating lever (19) about the pivot axis (20). Retaining element according to claim 1 or 2,
characterized,
in that the actuating lever (19) is connected to the first fitting part (1) via a bearing pin (22) and that the adjusting lever (25) is fastened to the actuating lever (19) via the bearing pin (22). Retaining element according to one of claims 1 to 3,
characterized,
in that the power drive (12) is supported via bearing means (43) against at least one support surface (44) of the adjustment lever (25) and at least one holding surface (45) of the actuating lever (19). Retaining element according to one of claims 1 to 4,
characterized,
that by pivoting the adjusting lever (25) relative to the actuating lever (19), the distance of the Krafiwirkungslinie (16) of the power drive (12) to the pivot axis (20) is variable. Retaining element according to claim 5,
characterized,
in that the support surface (44) of the adjusting lever (25) and the holding surface (45) of the actuating lever (19) form an acute angle. Retaining element according to one of claims 1 to 6,
characterized,
that adjusting means (31) are provided, by means of which the adjusting lever (25) in different pivot positions relative to the actuating lever (19) can be detected. Retaining element according to one of claims 1 to 7,
characterized,
that the first fitting part (1) comprises a relative to a base surface (3) predominantly parallel extending projection (4), in which both supporting arms (5, 6) and two levers (19, 25) are mounted. Retaining element according to one of claims 1 to 8,
characterized,
in that the actuating lever (19) has a U-shaped cross-section, in which the adjusting lever (25) is at least partially accommodated. Retaining element according to one of claims 1 to 9,
characterized,
in that the actuating arm (26) has a U-shaped cross-section in which the first support arm (5) is at least partially accommodated. Retaining element according to one of claims 1 to 10,
characterized,
in that a damper (34) is provided which damps the pivoting movement of the cover (4) until it reaches the closed position, the damper (34) being accommodated in a housing (35) connected to the first support arm (5). Retaining element according to Claim 11,
characterized,
in that the damper (34) comprises a damping body (36) axially adjustable relative to the housing (35), which cooperates with a stop element (37) of the first fitting part (1). Retaining element according to one of claims 11 or 12,
characterized,
in that the first support arm (5) has a U-shaped cross-section in which the damper (34) is at least partially accommodated. Retaining element according to one of claims 1 to 13,
characterized,
in that stop arms (46) are provided on the adjusting arm (26), on which the first supporting arm (5) is supported and by means of which a pivoting position of the first supporting arm (5) relative to the adjusting arm (26) is adjustable. Retaining element according to claim 14,
characterized,
in that the stop means (46) in a first displacement position, the first support arm (5) via a first support surface (47) under a supporting the first angle and support the first support arm (5) via a second support surface (48) at a second smaller angle in a second displacement position.

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