EP3623559A1 - Lid fitting for swingable mounting of a lid to a furniture unit - Google Patents

Abstract

Cover fitting (1) for pivotably attaching a cover to a furniture body (8), the cover fitting (1) having the following:
a base element (2) for mounting the cover fitting (1) on a side wall (7) of the furniture body (8),
a front connection element (3) for mounting a cover element (9) on the cover fitting (1),
a first swivel arm (4) which is pivotably attached to the base element (2) about a first body axis (K1) and on the front connecting element (3) about a first cover axis, and
a second swivel arm (5) which is fastened to the base element (2) about a second body axis (K2) and to the front connection element (3) about a second cover axis,
the first body axis (K1), the second body axis (K2), the first lid axis (D1) and the second lid axis (D2) being arranged parallel and spaced apart from one another,
characterized,
that the cover fitting (1) also has an eccentric (6) which is pivotably attached to the base element (2) about a bearing axis (L), and
that the first swivel arm (4) is pivotally mounted on the eccentric (6) about an eccentric axis (E),
the bearing axis (L) and the eccentric axis (E) being arranged parallel and at a distance from one another.

Description

The invention relates to a cover fitting for pivotably attaching a cover to a furniture body, the cover fitting having a base element for mounting the cover fitting on a side wall of the furniture body and a front connection element for mounting a cover element on the cover fitting. Furthermore, the cover fitting has a first swivel arm which is fastened to the base element about a first body axis and to the front connection element about a first cover axis. In addition, the cover fitting has a second swivel arm which is fastened pivotably about a second body axis on the base element and about a second cover axis on the front connection element, the first body axis, the second body axis, the first cover axis and the second cover axis being parallel and spaced apart from one another are arranged.

Such a cover fitting is for example from the EP 2 354 404 A2 known. The front connection element can be connected to a cover-side connection element via a snap-in connection without tools. The height position, the lateral position and the inclination of the cover element in relation to the furniture body can be adjusted using several adjusting screws on the front connection element.

DE 20 2013 101 958 U1 shows a holding arrangement for a cabinet with a body and a hinged hinged to this folding lid, the folding lid has an upper cover element and a lower cover element, which are pivotally connected to each other. The holding arrangement has an arm which can be pivoted on the body and on the lower cover element. An adjustment device with a fastening element and an eccentric is provided. The fastening element can be fixed on the body or on the lower cover element the eccentric is fastened to the fastening element such that it can be rotated about an axis, the arm being pivotably connected to the eccentric about a pivot axis arranged parallel to the axis.

The object of the present invention is to provide a simply constructed cover fitting with which the inclination of the front connection element relative to the base element can be adjusted.

The object is achieved by a cover fitting for pivotably attaching a cover to a furniture body, the cover fitting having a base element for mounting the cover fitting on a side wall of the furniture body and a front connection element for mounting a cover element on the cover fitting. Furthermore, the cover fitting has a first swivel arm which is fastened to the base element about a first body axis and to the front connection element about a first cover axis. In addition, the cover fitting has a second swivel arm which is fastened pivotably about a second body axis on the base element and about a second cover axis on the front connection element, the first body axis, the second body axis, the first cover axis and the second cover axis being parallel and spaced apart from one another are arranged. The cover fitting has an eccentric which is pivotally attached to the base element about a bearing axis. The first swivel arm is pivotally mounted on the eccentric about an eccentric axis, the bearing axis and the eccentric axis being arranged parallel and spaced apart from one another.

The eccentric can be arranged in two different ways on the base element and on the first swivel arm. In a first embodiment, the bearing axis forms the first body axis, so that the eccentric is rotatably mounted about the first body axis on the base element and the first pivot arm is rotatably mounted about the eccentric axis on the eccentric. When the cover fitting is adjusted from a closed position, which corresponds to the position of the cover fitting in which the cover element closes the furniture body, into an open position, the first swivel arm and the eccentric jointly rotate or rotate about the first body axis. To adjust the inclination of the front connection element relative to the base element and thus, when the cover fitting is mounted on the furniture body, of the cover element relative to the furniture body, the eccentric can be rotated about the eccentric axis relative to the first swivel arm. The first swivel arm is connected to the eccentric in such a way that a greater torque must be applied to rotate the eccentric relative to the first swivel arm than to rotate the eccentric relative to the base element. This ensures that during normal movement of the cover fitting between the closed position and the open position, the eccentric is rotated relative to the base element and not the first swivel arm relative to the eccentric. By rotating the eccentric relative to the first swivel arm about the eccentric axis, the distance between the first body axis and the first cover axis is adjusted or varied, the position of the first body axis relative to the base element remaining unchanged. This means that by rotating the eccentric around the eccentric axis, the position of the first cover axis is also varied. In this way, the inclination of the front connection element is adjusted, since the distances between the second body axis and the second lid axis, between the first body axis and the second body axis and between the first lid axis and the second lid axis remain unchanged.

In a second embodiment, the eccentric axis forms the first body axis, so that the first swivel arm is rotatably mounted on the eccentric about the first body axis and the eccentric is rotatably mounted on the base element about the bearing axis. To adjust the eccentric about the bearing axis relative to the base element, a greater torque is required than for pivoting the first swivel arm about the eccentric axis relative to the eccentric. When adjusting the eccentric about the bearing axis, it is not, as in the first exemplary embodiment, the distance between the first body axis and the first cover axis that is adjusted, but rather the position of the first body axis relative to the base element. By adjusting the position of the first body axis without changing the distance between the first body axis and the first lid axis, the position of the first lid axis relative to the base element is also changed. As in the first exemplary embodiment, this leads to an adjustment of the inclination of the front connection element.

In one exemplary embodiment, the eccentric can have an outer circumferential surface which is circular in cross section and on which the first swivel arm is mounted so as to be pivotable about the eccentric axis with a receiving bore. The eccentric can with this Embodiment have a bearing pin with which the eccentric is pivotally mounted on the base member about the bearing axis.

The eccentric can be pressed into the receiving bore of the first swivel arm. Here, the eccentric can be pressed into the receiving bore by wobble rivets.

In a view in the axial direction, in one embodiment the first body axis, the second body axis, the first lid axis and the second lid axis can form a quadrilateral, with a first straight line through the first body axis and through the first lid axis and one in a closed position of the front connecting element second straight line through the second body axis and the second lid axis are arranged parallel to one another or enclose an acute angle. The angle between the first straight line and the second straight line is preferably 0 to 20 degrees.

It can further be provided that the first straight line and a third straight line form an angle through the first cover axis and through the second cover axis, which is between 45 and 135 degrees.

According to one exemplary embodiment, the distance between the first body axis and the first cover axis is many times longer than the distance between the first cover axis and the second cover axis.

In one configuration, the cover fitting furthermore has a power drive for actuating the front connection element at least over part of the swivel path of the front connection element between an open position and a closed position in the direction of the open position. Here, the front connection element can have an actuating contour, the power drive being supported on the one hand against one of the swivel arms and, on the other hand, by means of a pressure element against the actuating contour of the front connection element.

Here, the pressure element can axially on that swivel arm, for example in a housing of the swivel arm, against which the power drive is supported.

The pressure element can be a roller which is acted upon by force against the positioning contour.

Figur 1

eine Seitenansicht eines Deckelbeschlags an einem Möbelkorpus in einer ersten Justierstellung;

Figur 2

eine Seitenansicht des Deckelbeschlags gemäß Figur 1 in einer zweiten Justierstellung;

Figur 3

eine Seitenansicht des Deckelbeschlags gemäß Figur 1 in einer dritten Justierstellung;

Figur 4

eine perspektivische Ansicht des Deckelbeschlags gemäß Figur 1 in einer Offenstellung; und

Figur 5

eine vergrößerte Schnittdarstellung des Deckelbeschlags gemäß Figur 1 im Bereich des Exzenters.

A preferred exemplary embodiment is explained in more detail below with reference to the figures. Herein shows:

Figure 1

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

Figure 2

a side view of the lid fitting according to Figure 1 in a second adjustment position;

Figure 3

a side view of the lid fitting according to Figure 1 in a third adjustment position;

Figure 4

a perspective view of the lid fitting according to Figure 1 in an open position; and

Figure 5

an enlarged sectional view of the lid fitting according to Figure 1 in the area of the eccentric.

The Figures 1 to 3 show a cover fitting 1 each in the closed position, three different adjustment positions being shown. The Figure 4 shows the same lid fitting in an open position. The Figures 1 to 4 are described together below.

The cover fitting 1 comprises a base element 2, a front connection element 3, a control arm as the first pivot arm 4 and an actuating arm as the second pivot arm 5. The base element 2 is fastened to a side wall 7 of a furniture body 8. The front connection element 3 is fastened to an inside of a cover element 9 of the body 8. The cover element 9 is only on the cover fitting 1 or one or more further cover fittings according to the cover fitting 1 shown hinged to the furniture body 8. This means that no further hinges or fittings are provided for pivotably moving the cover element 9 relative to the furniture body 8. The cover fitting 1 is designed as a four-bar mechanism. This means that the first swivel arm 4 is fastened to the base element 2 about a first body axis K1 and to the front connecting element 3 about a first cover axis D1. Furthermore, the second swivel arm 5 is fastened to the base element 2 about a second body axis K2 and to the front connecting element 3 about a second cover axis D2.

In axis view according to the Figures 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 square. The first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 are arranged parallel and spaced apart.

Furthermore, the cover fitting 1 has an eccentric 6, which is about a bearing axis L ( Figure 5 ) is rotatably mounted on the base element 2. The first swivel arm 4 is mounted on the eccentric 6 so as to be pivotable about an eccentric axis E, the bearing axis L and the eccentric axis E being arranged parallel and at a distance from one another.

In the exemplary embodiment shown, the bearing axis L forms the first body axis K1, so that the eccentric 6 is rotatably mounted on the base element 2 about the first body axis K1 and the first pivot arm 4 is rotatably mounted on the eccentric 6 about the eccentric axis E. When the cover fitting 1 is adjusted from a closed position ( Figures 1 to 3 ), in which the cover element 9 closes an opening 10 of the furniture body 8, according to an open position Figure 4 , in which the cover element 9 does not close the opening 10, the first pivot arm 4 and the eccentric 6 pivot or rotate together about the first body axis K1 or the bearing axis L.

To adjust the inclination of the front connection element 3 with respect to the base element 2, and thus 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 be rotated about the eccentric axis E relative to the first swivel arm 4. The eccentric 6 has an outer peripheral surface 11 which is circular in cross section and on which the first swivel arm 4 is pivotally mounted with a receiving bore 12. The eccentric 6 is pressed in the receiving bore 12 such that a greater torque must be applied to rotate the eccentric 6 relative to the first swivel arm 4 than to rotate the eccentric 6 relative to the base element 2.

The eccentric 6 is pivotally received in a bore 24 of the base element 2 and riveted on a side of the base element facing away from the outer peripheral surface 11.

In view in the axial direction, as in the Figures 1 to 3 shown, the first body axis K1, the second body axis K2, the first lid axis D1 and the second lid axis D2 form a quadrilateral, wherein in the closed position of the lid fitting 1, a first straight line G1 through the first body axis K1 and through the first lid axis D1 and one second straight line G2 through the second body axis K2 and the second cover axis D2 are arranged approximately parallel to one another, wherein they enclose an acute angle α to one another.

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

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

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

By turning the eccentric 6 counterclockwise starting from the position according to Figure 2 in the position according to Figure 1 becomes the position of the first lid axis D1 changed relative to the bearing axis L and thus to the first body axis K1, the position of the first body axis K1 remaining unchanged. The distance between the first body axis K1 and the first cover axis D1 in Figure 1 compared to Figure 2 enlarged. By turning the eccentric 6 counterclockwise, the eccentric axis E is moved vertically upwards. Since the eccentric E rotates relative to the base element 2 about the bearing axis L or the first body axis K1, the first pivot arm 4 and thus the first cover axis D1 are moved upward. This movement leads to a pivoting of the front connection element 3 counterclockwise about the second cover axis D2. Thus, the cover element 9 is moved further away from the body 8 at its vertically upper end, so that there is a larger gap between the cover element 9 and the body 8 at the upper end than at a lower end.

In the adjustment position according to Figure 3 became the eccentric 6, starting from Figure 2 , rotated clockwise so that the eccentric axis E was moved vertically downwards. The distance between the first body axis K1 and the first cover axis D1 is shortened compared to the distance according to the adjustment position Figure 2 . The vertically downward movement of the eccentric axis E also moves the first cover axis D1 downward, so that the front connecting element 3 is moved clockwise around the second cover axis D2. This results in a larger gap dimension at the lower end than at the upper end between the cover element 9 and the body 8.

Figure 4 shows the cover fitting 1 in a perspective view. The second swivel 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, near the second body axis K2, against an abutment 15 and on the other hand, near the second cover axis D2, via a pressure element 16 against the Front connection element 3 is supported. Since the front connection element 3 is connected to the cover element 9, the front connection element 3 functions as an actuating element for moving the cover element 9.

The pressure element 16 is acted upon with force in the direction of the front connection element 3, the pressure element 16 having a roller 17 with which the pressure element 16 is supported against an adjusting contour 18 of the front connection element 3. The positioning contour 18 has a changing distance from the second cover axis D2 in the circumferential direction around the second cover axis D2. Here, the actuating contour 18 is designed such that a torque is generated by the pressure element 16 over the largest pivoting path of the cover element 9 or the front connection element 3, which the cover element 9 in the direction toward the Figure 4 applied open position shown with force. In an area between an intermediate position, which is located between the open position and the closed position of the cover element 9, and the closed position, the actuating contour 18 is designed such that the cover element 9 is in the direction of FIG Figures 1 to 3 shown closed position is acted upon by force.

The coil spring 14 is clamped between the abutment 15 and the actuating contour 18 on the front connection element 3. The bias of the coil spring 14 with which it is clamped can be adjusted in order to adapt the cover fitting 1 to different cover weights. Depending on the weight of the cover element 9, the pretension can be adjusted, that is, with a higher cover weight, the pretension 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 actuating contour 18, as a result of which the front connecting element 3 acts Larger torque acts in particular in the direction of the open position of the cover element 9. Correspondingly, a lower pretension can be set if the weight of the cover element 9 is less.

To adjust the preload of the coil spring 14, the abutment 15 can be moved in the direction of the force of the coil spring 14. For this purpose, the abutment 15 has a rectangular cross section. The housing 13 of the second swivel arm 5 likewise has a rectangular cross-section on the inside, via which the abutment 15 is guided so as to be non-rotatable axially along the longitudinal extent of the housing 13.

To adjust the abutment 15, an adjusting element 19 is provided with an external thread, which is screwed into a counter thread of the abutment 15. By turning the adjusting element 19, the abutment 15 becomes along the thread adjusted. The adjusting element 19 is axially immovable and rotatably mounted in the housing 13. The adjusting element 19 has a gearwheel section 20 which is in meshing engagement with a toothing of a drive element 21. The drive element 21 is designed as a rotatable worm wheel. The drive element 21 is axially immovable and rotatably mounted in the housing 13. By rotating the drive element 21, this rotates the adjusting element 19, as a result of which the abutment 15 is axially displaced.

Reference list

1

Lid fitting

2nd

Basic element

3rd

Front connection element

4th

first swivel arm / control arm

5

second swivel arm / adjusting arm

6

eccentric

7

Side wall

8th

Body

9

Cover element

10th

opening

11

Outer peripheral surface

12th

Location hole

13

casing

14

Coil spring

15

Abutment

16

Pressure element

17th

role

18th

Positioning contour

19th

Adjustment element

20th

Gear section

21

Drive element

22

Power drive

23

Bearing journal

24th

drilling

D1

first lid axis

D2

second lid axis

E

Eccentric axis

G1

first straight line

G2

second straight line

G3

third straight line

K1

first body axis

K2

second body axis

L

Bearing axis

Claims (11)

Cover fitting (1) for pivotably attaching a cover to a furniture body (8), the cover fitting (1) having the following: a base element (2) for mounting the cover fitting (1) on a side wall (7) of the furniture body (8), a front connection element (3) for mounting a cover element (9) on the cover fitting (1), a first swivel arm (4) which is pivotably attached to the base element (2) about a first body axis (K1) and on the front connecting element (3) about a first cover axis, and a second swivel arm (5) which is fastened to the base element (2) about a second body axis (K2) and to the front connection element (3) about a second cover axis, the first body axis (K1), the second body axis (K2), the first lid axis (D1) and the second lid axis (D2) being arranged parallel and spaced apart from one another, characterized, that the cover fitting (1) also has an eccentric (6) which is pivotably attached to the base element (2) about a bearing axis (L), and that the first swivel arm (4) is pivotally mounted on the eccentric (6) about an eccentric axis (E), wherein the bearing axis (L) and the eccentric axis (E) are arranged parallel and spaced apart. Cover fitting (1) according to claim 1,
characterized,
that the bearing axis (L) forms the first body axis (K1). Cover fitting (1) according to one of claims 1 or 2,
characterized,
that the eccentric (6) has an outer circumferential surface (11) which is circular in cross section and on which the first swivel arm (4) is pivotably mounted with a receiving bore (12) about the eccentric axis (E). Cover fitting (1) according to claim 3,
characterized,
that the eccentric (6) has a bearing journal (23) with which the eccentric (6) is pivotally mounted on the base element (2) about the first body axis (K1). Cover fitting (1) according to claim 4,
characterized,
that the eccentric (6) is pressed into the receiving bore (12) of the first swivel arm (4). Cover fitting (1) according to one of claims 1 to 5,
characterized,
that the first body axis (K1), the second body axis (K2), the first lid axis (D1) and the second lid axis (D2) form a quadrangle in a view in the axial direction, wherein, in a closed position of the front connection element (3), a first Straight line (G1) through the first body axis (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 arranged parallel to one another or enclose an acute angle. Lid fitting (1) according to claim 6,
characterized,
that the first straight line (G1) and a third straight line (G3) through the first cover axis (D1) and through the second cover axis (D2) enclose an angle which is between 45 and 135 degrees. Cover fitting (1) according to one of claims 1 to 7,
characterized,
that the distance between the first body axis (K1) and the first cover axis (D1) is many times longer than the distance between the first cover axis (D1) and the second cover axis (D2). Cover fitting (1) according to one of claims 1 to 8,
characterized,
that the cover fitting (1) also has a power drive (22) for loading the front connection element (3) at least over part of the pivoting path of the front connection element (3) between an open position and a closed position in the direction of the open position,
that the front connecting element (3) has an adjusting contour (18) and that the power drive (22) is supported on the one hand against one of the swivel arms (4, 5) and on the other hand by means of a pressure element (16) against the adjusting contour (18) of the front connecting element (3) . Cover fitting (1) according to claim 9,
characterized,
that the pressure element (16) is guided axially in the swivel arm (4, 5) against which the power drive (22) is supported. Cover fitting (1) according to one of claims 9 or 10,
characterized,
that the pressure element (16) has a roller (17) which is acted upon by force against the actuating contour (18).

Images