ES2887002T3 - Lid fitting for pivotally fixing a lid to a cabinet - Google Patents

Abstract

Lid fitting (1) for pivotally fixing a lid to a furniture body (8), the lid fitting (1) comprising: a base element (2) for fixing the lid fitting (1) to a wall side (7) of the furniture body (8), a front fixing element (3) to mount a cover element (9) to the cover fitting (1), a first pivoting arm (4) that is pivotally fixed to the element base (2) around a first axis of the body (K1) and to the front fixing element (3) around a first axis of the lid (D1), a second pivoting arm (5) that is pivotally fixed to the base element (2) around a second axis of the body (K2) and the front fixing element (3) around a second axis of the lid (D2), with the first axis of the body (K1), the second axis of the body (K2), the first axis of the lid (D1) and the second axis of the lid (D2) arranged in parallel and separated from each other, and an eccentric (6) that is pivotally fixed to the base element ( 2 in around a support axis (L), characterized in that the first pivoting arm (4) is pivotally mounted on the eccentric (6) around an eccentric axis (E), with the support axis (L) and the eccentric axis (E) arranged parallel and distanced from each other, because the lid fitting (1) also comprises a force actuator (22) to apply force on the front fixing element (3) at least in part of the pivoting path of the front fixing element (3) between an open position and a closed position in the direction towards the open position, because the front fixing element (3) has an adjustment profile (18), and because the force actuator (22) it rests, on the one hand, against one of the pivoting arms (4, 5) and, on the other hand, by means of a pressure element (16) against the adjustment profile (18) of the front fixing element (3).

Description

DESCRIPTION

Lid fitting for pivotally fixing a lid to a cabinet

The invention relates to a cover fitting for pivotally fixing a cover to a furniture body that has the characteristics of the generic concept of claim 1.

Such a lid fitting is known from DE 88 00 293 U1, which shows a fitting for a furniture body with an opening that can be closed by a door. The door is joined to the furniture body through the hardware. The hardware has a support plate for the body and a support plate for the door. These two support plates are connected in an approximately parallelogram shape by means of two toggle levers hinged to them side by side. The body support plate is fixed to the furniture body. The door support plate has a recess in which an adjustment plate with a free edge is suspended. This is attached to the door in an adjustable way by means of an eccentric. The connection between the door support plate and the adjustment plate is secured in this case by means of a locking element.

Another lid fitting is known from EP 2354404 A2. In it, the front fastening element can be connected without tools to a connecting element on the lid side by means of a snap-in connection. The height position, the lateral position and the inclination of the cover element in relation to the furniture body can be adjusted by means of a plurality of adjustment screws on the front fixing element.

DE 20 2013 101 958 U1 shows a fastening arrangement for a cabinet with a body and a foldable lid movably hinged thereon, the foldable lid having an upper lid element and a lower lid element which are fixedly connected. pivoting to each other. The holding arrangement has an arm that can be pivotally articulated to the body and to the bottom cover element. An adjusting device with a fixing element and an eccentric is provided. The fixing element can be fixed to the body or to the bottom cover element, and the eccentric is attached to the fixing element to be rotatable about an axis, the arm being pivotally attached to the eccentric about a pivoting axis arranged parallel to the axis.

WO 03/097973 A1 discloses a lid adjuster for a cabinet having an adjuster arm pivotally attached to a cabinet body and a lid between an open position and a closed position. In addition, a lid adjuster control arm is pivotally attached to the cabinet body and lid. To allow the lid to be adjusted parallel to or to pivot through the cabinet body with the lid held in any position, adjusting elements in a bodyside lid adjuster housing apply a force to the adjusting arm about at least part of its pivotal path to assume the open position, the force in each position being sufficient to hold the lid in any position.

It is an object of the present invention to provide a lid fitting of compact construction whereby the inclination of the front fixing element can be adjusted by means of simple elements in relation to the base element.

The task is carried out by means of a lid fitting that has the characteristics of claim 1.

In this case, the eccentric can be arranged in two different arrangements on the base element and on the first pivot arm. In a first manufacturing model, the support axis forms the first axis of the body, so that the eccentric is mounted on the base element in such a way that it can rotate around the first axis of the body and the first pivoting arm is mounted in such a way. rotating form in the eccentric around the eccentric axis. In the case of adjustment of the lid fitting from a closed position, which is the position corresponding to the position of the lid fitting in which the lid element closes the furniture body, to an open position, the first pivot arm and the eccentric pivot or rotate together about the first axis of the body. In order to adjust the inclination of the front fastening element with respect to the base element and thus of the cover element with respect to the furniture body, in the assembled state of the cover fitting on the furniture body, the eccentric can rotate with respect to to the first pivoting arm around the eccentric axis. The first pivot arm is attached to the eccentric in this case in such a way that turning the eccentric relative to the first pivot arm requires a greater torque than turning the eccentric relative to the base element. This ensures that during the normal movement of the lid fitting between the closed position and the open position, the eccentric is rotated with respect to the base element and not the first pivot arm with respect to the eccentric. As the eccentric rotates with respect to the first pivoting arm around the eccentric axis, the distance between the first axis of the body and the first axis of the lid is adjusted or varies, the position of the first axis of the body with respect to the element remaining unchanged. base. In this way, when the eccentric rotates around the eccentric axis, the position of the first axis of the lid also varies. This allows the front fixing element to be adjusted in inclination, since the distances between the second axis of the body and the second axis of the lid, between the first axis of the body and the second axis of the body, as well as between the first cap axis and second cap axis.

In a second manufacturing model, the eccentric axis forms the first axis of the body, so that the first pivot arm is supported in a rotatable manner on the eccentric about the first axis of the body and the eccentric is supported in a rotatable manner in the element. base around the support axis. In this case, a greater torque is required to adjust the eccentric about the bearing axis relative to the base member than to pivot the first pivot arm about the eccentric axis relative to the eccentric. Adjusting the eccentric around the support axis does not adjust, as in the first manufacturing example, the distance between the first axis of the body and the first axis of the cover, but rather the position of the first axis of the body with respect to to the base element. By this adjustment of the position of the first axis of the body without changing the distance between the first axis of the body and the first axis of the lid, the position of the first axis of the lid with respect to the base element is also modified. As in the first manufacturing model, this results in an adjustment of the inclination of the front fixing element.

In one manufacturing pattern, the cam may have an outer circumferential surface that is circular in cross-section on which the first pivot arm with a receiving hole is pivotally mounted about the cam axis. In this construction model, the eccentric may comprise a journal with which the eccentric is pivotally mounted on the base element about the support axis.

The eccentric can be press-fitted into the receiving hole of the first pivot arm. In this case, the eccentric can be pressed into the receiving hole of the first pivot arm by means of oscillating rivets.

In a view in the axis direction, in a fabrication model, the first body axis, the second body axis, the first lid axis and the second lid axis may form a quadrilateral, where, in a closed position of the front fixing element, a first straight line through the first axis of the body and the first axis of the lid and a second straight line through the second axis of the body and the second axis of the lid are arranged parallel to each other yes or form an acute angle. The angle between the first straight line and the second straight line is preferably 0 to 20 degrees.

In this connection, it can further be provided that the first straight line and a third straight line through the first lid axis and the second lid axis form an angle between 45 and 135 degrees.

According to a manufacturing model, the distance between the first axis of the body and the first axis of the lid is many times greater than the distance between the first axis of the lid and the second axis of the lid.

The pressure element of the force actuator can be axially guided in this pivot arm, for example in a pivot arm housing, against which the force actuator bears.

The pressure element can be a roller which is subjected to force against the adjustment profile.

A preferred example of a manufacturing model is explained in more detail below with reference to the figures. Here it shows:

FIG. 1 a side view of a cover fitting on a furniture body in a first adjustment position;

FIG. 2 a side view of the cover fitting according to FIG. 1 in a second adjustment position;

FIG. 3 a side view of the cover fitting according to FIG. 1 in a third adjustment position;

FIG. 4 a perspective view of the cover fitting according to FIG. 1 in an open position; Y

FIG. 5 an enlarged sectional view of the cover fitting according to FIG. 1 in the area of the eccentric.

Figures 1 to 3 show a lid fitting 1 in the closed position, with three different adjustment positions. Figure 4 shows the same lid fitting in the open position.

Figures 1 to 4 are described together below.

The lid fitting 1 comprises a base element 2, a front fixing element 3, a control arm as the first pivot arm 4 and an adjustment arm as the second pivot arm 5. The base element 2 is fixed to a side wall 7 of a furniture body 8. The front fastening element 3 is fixed to an inner side of a cover element 9 of the body 8. The cover element 9 is fixed as a hinge, exclusively by means of the cover fitting 1 or by means of one or more additional lid fittings according to the lid fitting 1 shown, to the furniture body 8. This means that no other hinges or fittings are provided for the pivoting movement of the lid element 9 with respect to the body. of furniture 8. The lid hardware 1 is shaped as an articulated quadrilateral mechanism. This means that the first pivoting arm 4 is pivotally fixed to the base element 2 about a first axis of the body K1 and to the front fixing element 3 about a first axis of cover D1. Furthermore, the second pivoting arm 5 is pivotally fixed to the base element 2 about a second axis of the body K2 and to the front fixing element 3 about a second axis of the lid D2.

In the axis view according to FIGS. 1 to 3, the first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 form a quadrilateral. The first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 are arranged in parallel and spaced apart from each other.

In addition, the cover fitting 1 has an eccentric 6 which is rotatably mounted on the base element 2 about a bearing axis L (FIG. 5). The first pivot arm 4 is mounted on the eccentric 6 so that it is pivotable about an eccentric axis E, the support axis L and the eccentric axis E being arranged parallel and spaced apart from each other.

In the manufacturing model shown, the support axis L forms the first axis of the body K1, so that the eccentric 6 is rotatably mounted on the base element 2 about the first axis of the body K1 and the first pivot arm 4 is rotatably mounted on the eccentric 6 about the eccentric axis E. When the cap fitting 1 is adjusted from a closed position (figures 1 to 3), in which the cap element 9 closes an opening 10 of the body of the piece of furniture 8, towards an open position, as shown in figure 4, in which the cover element 9 does not close the opening 10, the first pivoting arm 4 and the eccentric 6 pivot or rotate together about the first axis of the body K1 and support shaft L, respectively.

In order to adjust the inclination of the front fastening element 3 with respect to the base element 2, and therefore, in the assembled state of the cover fitting 1 of the cover element 9 with respect to the furniture body 8, the eccentric 6 can rotate with respect to the first pivot arm 4 about the eccentric axis E. The eccentric 6 has an outer circumferential surface 11 which is circular in cross section on which the first pivot arm 4 is pivotally mounted by means of a receiving hole 12. eccentric 6 is pressed into the receiving hole 12 in such a way that to rotate the eccentric 6 with respect to the first pivot arm 4, a greater torque is required than that required to rotate the eccentric 6 with respect to the base element two.

The cam 6 is pivotally received in a hole 24 in the base member 2 and is riveted to a side of the base member remote from the outer circumferential surface 11.

Viewed in the axis direction, as shown in Figs. 1 to 3, the first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 form a quadrilateral, whereby in the closed position of the lid fitting 1, a first straight line G1 through the first body axis K1 and the first lid axis D1 and a second straight line G2 through the second body axis K2 and of the second axis of the lid D2, are arranged approximately parallel to each other, these comprising an acute angle a between each other.

The angle between the first straight line G1 and a third straight line G3 through the first lid axis D1 and the second lid axis D2 comprise an angle p which is approximately 90 degrees.

By this arrangement of the first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 with respect to one another, an effective adjustment of the front fixing element 3 can be achieved. with respect to the inclination by a small adjustment of the eccentric axis E with respect to the base element 2.

Figure 2 shows an adjustment position of the lid fitting 1 in which the lid element 9 is parallel to the opening 10 and vertically aligned. The cover element 9 has uniform clearances with respect to the body 8 and is therefore optimally adjusted.

By rotating the eccentric 6 counterclockwise from the position according to figure 2 towards the position according to figure 1, the position of the first axis of the cover D1 with respect to the support axis L and, therefore, with respect to the first body axis K1, it is modified, the position of the first body axis K1 remaining unchanged. Consequently, the distance between the first body axis K1 and the first lid axis D1 in Fig. 1 increases compared with that in Fig. 2. By turning the eccentric 6 counterclockwise, the axis eccentric E moves vertically upwards. Since the eccentric E is rotated with respect to the base element 2 about the support axis L or the first axis of the body K1, the first pivot arm 4, and consequently the first axis of the lid D1, moves upwards . This movement leads to a pivoting of the front fixing element 3 about the second axis of the cover D2 in a counterclockwise direction. In this way, the cover element 9 moves further away from the body 8 at its upper vertical end, so that a greater clearance occurs between the cover element 9 and the body 8 than at a lower end.

In the adjustment position according to figure 3, the eccentric 6, from figure 2, has been turned clockwise, so that the eccentric axis E has been displaced vertically downwards. The distance between the first axis of the body K1 and the first axis of the cap D1 is shortened in comparison with the distance of the adjustment position according to figure 2. As a result of the downward-oriented vertical movement of the eccentric axis E, it also moves the first axis of the lid D1 downwards, so that the front fixing element 3 moves clockwise around the second axis of the lid D2. This results in a greater clearance at the lower end than at the upper end between the cover element 9 and the body 8.

Figure 4 shows the lid fitting 1 in a perspective view. The second pivot arm 5 has a housing 13, in which a spring element in the form of a helical spring 14 is arranged, which on the one hand rests against a bracket 15 near the second body axis K2, and on the other hand, near the second lid axis D2, through a pressure element 16, against the front fixing element 3. Since the front fixing element 3 is attached to the lid element 9, the front fixing element 3 acts as an adjustment element to move the cover element 9.

The pressure element 16 is subjected to a force in the direction of the front fastening element 3, the pressure element 16 having a roller 17 by means of which the pressure element 16 bears against an adjustment profile 18 of the front fastening element. 3.

The adjustment profile 18 has, in the circumferential direction around the second cover axis D2, a distance that changes from the second cover axis D2. The adjustment profile 18 is designed in such a way that from the pressure element 16 on the greater pivoting path of the cover element 9 or the front fixing element 3, respectively, a torque is produced that applies a force to the element of lid 9 in the direction of the open position shown in Fig. 4. In an interval between an intermediate position, which is between the open position and the closed position of the lid member 9, and the closed position, the adjustment profile 18 it is designed in such a way that the cover element 9 is subjected to a force in the direction of the closed position shown in figures 1 to 3.

The helical spring 14 is located between the bracket 15 and the adjustment profile 18 on the front fastening element 3. The pre-tension of the helical spring 14, with which it is tensioned, can be adjusted to adapt the lid fitting 1 to different lid weights. Depending on the weight of the lid element 9, the pre-tension can be adjusted, i.e. for higher lid weights, the pre-tension of the helical spring 14 is increased, so that the roller 17 of the pressure element 16 is subjected to a greater force against the fitting profile 18, whereby a greater torque is exerted on the front fastening element 3, in particular in the direction of the open position of the cover element 9. Correspondingly, a lower pre-tension can be set if the lid weight of the lid element 9 is less.

In order to adjust the pretension of the helical spring 14, the yoke 15 can be displaced in the direction of the force effect of the helical spring 14. For this, the yoke 15 has a rectangular cross-section. The casing 13 of the second pivoting arm 5 also has a rectangular cross section inside, through which the bracket 15 is guided in an axially displaceable manner along the longitudinal extension of the casing 13 and securely against rotation. .

To adjust the stirrup 15, an adjusting element 19 with an external thread is provided, which is screwed into a mating thread of the stirrup 15. By turning the adjusting element 19, the stirrup 15 is adjusted along the thread. The adjusting element 19 is mounted axially immovably and rotatably in the housing 13. The adjusting element 19 has a gear section 20 which is in mesh with a toothing of a drive element 21. The drive element 21 is designed as a gear rotating helical. The drive element 21 is not axially displaceable and is rotatably mounted in the housing 13. By rotating the drive element 21, it rotates the adjusting element 19, whereby the yoke 15 is displaced axially.

List of reference signs

1 cover fitting

2 base element

3 Front fixing element

4 First pivot arm / control arm

5 Second pivot arm / adjustment arm

6 Eccentric

7 Sidewall

8 body

tapa9 Element

top

10 opening

11 Outer circumferential surface 12 Receiving hole

13 Casing

14 coil spring

15 Stirrup

16 pressure element

17 roller

18 Fit Profile

19 Setting element

20 Sprocket Section

21 Drive element 22 Force actuator

23 stump

24 hole

D1 First cap axis

D2 Second lid axis

E eccentric shaft

G1 First straight line

G2 Second straight line

G3 Third straight line

K1 First axis of the body

K2 Second body axis

L support shaft

Claims (10)

1. Lid fitting (1) for pivotally fixing a lid to a furniture body (8), including the lid fitting (1): a base element (2) to fix the lid fitting (1) to a side wall (7) of the furniture body (8), a front fixing element (3) to mount a cover element (9) to the cover fitting (1), a first pivoting arm (4) that is pivotally fixed to the base element (2) around a first axis of the body (K1) and to the front fixing element (3) around a first axis of the lid (D1) , a second pivoting arm (5) that is pivotally fixed to the base element (2) around a second axis of the body (K2) and to the front fixing element (3) around a second axis of the lid (D2) , being the first axis of the body (K1), the second axis of the body (K2), the first axis of the cover (D1) and the second axis of the cover (D2) arranged in parallel and separated from each other, and an eccentric ( 6) which is pivotally fixed to the base element (2) around a support axis (L), characterized in that the first pivoting arm (4) is pivotally mounted on the eccentric (6) around an eccentric axis (E), the support axis (L) and the eccentric axis (E) being parallel and spaced apart from each other, because the lid fitting (1) also comprises a force actuator (22) to apply force on the front fixing element (3) at least in part of the pivoting path of the front fixing element (3) between a position open and a closed position in the direction towards the open position, because the front fixing element (3) has an adjustment profile (18), and because the force actuator (22) is supported, on the one hand, against one of the pivot arms (4, 5) and, on the other hand, by means of a pressure element (16) against the adjustment profile (18) of the el front fixing element (3). 2. Cover fitting (1) according to claim 1, characterized in that the support axis (L) forms the first axis of the body (K1). 3. Lid fitting (1) according to one of claims 1 to 2, characterized in that the eccentric (6) has an outer circumferential surface (11) that is circular in cross section on which the first pivoting arm (4) is mounted with a receiving hole (12) so that it can pivot around the eccentric axis (E). 4. Cover fitting (1) according to claim 3, characterized in that the eccentric (6) has a trunnion (23) by means of which the eccentric (6) is pivotally mounted on the base element (2) around to the first axis of the body (K1). 5. Cover fitting (1) according to claim 4, characterized in that the eccentric (6) is pressed into the receiving hole (12) of the first pivoting arm (4). 6. Cover fitting (1) according to one of claims 1 to 5, characterized in that the first axis of the body (K1), the second axis of the body (K2), the first axis of the cover (D1) and the second axis of the cover (D2) form a quadrilateral in a view in the direction of the axis, where, in a closed position of the front fixing element (3), a first straight line (G1) through the first axis of the body (K1 ) and through the first lid axis (D1) and a second straight line (G2) through the second body axis (K2) and the second lid axis (D2) are parallel to each other or make an acute angle. 7. Cover fitting (1) according to claim 6, characterized in that the first straight line (G1) and a third straight line (G3) through the first cover axis (D1) and the second cover axis ( D2) make an angle that is between 45 and 135 degrees. 8. Cover fitting (1) according to one of claims 1 to 7, characterized in that the distance between the first axis of the body (K1) and the first axis of the cover (D1) is several times greater than the distance between the first cap axis (D1) and the second cap axis (D2). Lid fitting (1) according to one of claims 1 to 8, characterized in that the pressure element (16) is guided axially in said pivoting arm (4, 5) against which the force actuator (22) rests. . Cover fitting (1) according to one of Claims 1 to 9, characterized in that the pressure element (16) has a roller (17) which is forcefully biased against the adjustment profile (18).