EP3649312A1

EP3649312A1 - Shutter fitting and piece of furniture

Info

Publication number: EP3649312A1
Application number: EP18735245.5A
Authority: EP
Inventors: Uwe Sobolewski; Stefan Andschus; Michael Tasche; Oliver Schael
Original assignee: Hettich ONI GmbH and Co KG
Current assignee: Hettich ONI GmbH and Co KG
Priority date: 2017-07-03
Filing date: 2018-06-26
Publication date: 2020-05-13
Anticipated expiration: 2038-06-26
Also published as: RU2020100901A; DE102017114774A1; WO2019007761A1; US20200131818A1; CN110832161B; CA3067703A1; CN110832161A; BR112019027807A2; EP3649312B1; AU2018296733A1

Abstract

The invention relates to a shutter fitting (4), in particular for a piece of furniture, said fitting comprising a housing (5) which can be fixed to a body (2), on which housing a supporting arm (6) is mounted rotatably, and comprising a pivotably mounted control arm (7), wherein the supporting arm (6) and the control arm (7) can be hingedly connected to a shutter (3) via spaced-apart axes of rotation (61, 71), wherein the supporting arm (6) drives a first gearwheel (10) in the event of a rotary movement, which first gearwheel directly or indirectly drives a second gearwheel (11), wherein the control arm (7) is rotatably mounted on the second gearwheel (11) at a distance from the axis of rotation (12) of the second gearwheel (11), and to a piece of furniture comprising a shutter fitting of this kind.

Description

Flap fitting and furniture

The present invention relates to a flap fitting, in particular for

Furniture, comprising a housing which can be fixed to a carcass, on which a support lever is rotatably mounted, and a pivotally mounted control lever, wherein the support lever and the control lever are pivotally connected to a flap via spaced pivot axes, and the support lever during a rotational movement a first Gear drives, which drives a second gear directly or indirectly, as well as a piece of furniture with a furniture body, on which a flap is held on two flap fittings.

EP 1 705 328 B1 discloses an opening and closing device for a hinged door, in which the flap is held on two rotatable arms. The two arms are coupled to each other via toothed areas, so that when an opening, the flap pivoted by the two arms. In this flap fitting is disadvantageous that the flap in the folded position covers an opening portion of the furniture body and the user must apply relatively large forces in the vertical direction for an opening movement.

EP 2 138 658 B1 discloses a flap fitting for a furniture flap in which the furniture flap can be swiveled by an actuating arm and a control lever. The pivot arm is mounted about a fixed axis of rotation, while the control lever is articulated via a pivotable on a bearing part Anlenkach- se. As a result, while the pivoting movement of the furniture flap can be performed in the desired trajectory, however, a stiffness can occur just in the initial region of the opening movement.

It is therefore the object of the present invention to provide a flap fitting in which an optimized sequence of movements for opening and closing the flap is obtained. This object is achieved with a flap fitting with the features of claim 1.

In the case of the flap fitting according to the invention, a support lever is provided, which drives a first toothed wheel during a rotational movement, which directly or indirectly directly drives a second gear, wherein spaced from the axis of rotation of the second gear, the control lever is rotatably mounted on the second gear. As a result, the support lever and the control lever are coupled with each other via the gears in their movement, so that over the entire range of movement of the flap, a mechanical guidance by the support lever and the control lever. By coupling via the gears can be adjusted via a power storage a smooth movement, which largely compensates the weight forces. Preferably, therefore, an energy accumulator is provided which biases the flap in a closed position in the closing direction and biases the flap in an opening region in the opening direction. The user then only has to overcome the closing forces of the force accumulator for an opening movement and move the flap up to an opening area in which the force accumulator then automatically biases and moves the flap in the opening direction. The opening area can, for example, when viewed from the closed position, start between 20% and 50% of the total range of movement of the flap, so that only a slight opening movement is required by the user and then the flap can be moved further in the opening direction via the force accumulator.

The energy accumulator is preferably coupled via a rotatably mounted control disc with at least one gear. In this case, a cam guide may be formed in the control disk on which a holder connected to the energy accumulator is guided. The energy storage device may have one or more springs, in particular tension springs, which are stretched in the housing of the flap fitting.

For a compact construction, a gear formed of a plurality of gear wheels can be provided between two side walls of the housing. Through the use of gears, it is possible to adjust the forces for moving the flap, and in particular the axis of rotation of the control lever can be changed to ensure a harmonious movement. In order to avoid a hard impact, at least one damper can be provided, by means of which an opening and / or closing movement of the flap is decelerated before reaching the end position. For easy installation, a connection can be mounted on the flap, on which the axis of rotation for the support lever and the axis of rotation are provided for the control lever, so that the distance between the two axes of rotation is predetermined by the connection. At the connection may additionally be provided a damper for braking an opening movement of the flap. The damper can also assume a holding function in order to ensure a fixation of the flap in a certain opening area when the user lets go of the flap. The connection can be formed either one or more parts.

In the pivot fitting, the flap is preferably moved in an opening movement with an upper portion of the flap fitting away, so forward to the user. As a result, the flap is up into the room, so that an opening portion of the furniture body can be fully utilized, especially when the lower portion of the flap is placed in the maximum open position in the upper floor of the cabinet furniture. The flap can be designed as a dimensionally stable front panel, but also as a pivoting flap, which consists of two or more parts and is folded in the opening movement.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:

Figure 1 is a perspective view of an inventive

Furniture with a flap fitting;

Figure 2 is a perspective view of the front panel with a

Flap fitting;

FIGS. 3A and 3B show two views of the furniture of FIG. 1 with an opened flap;

Figures 4A and 4B show two views of the pivot fitting in a closed position;

Figure 5 is a view of the pivot fitting with partially removed housing in a closed position; Figures 6 to 8 show several views of the flap fitting of the figure in different positions;

Figure 9 is a view of the flap fitting in an open position, and

Figure 1 0 is a view of a modified flap fitting, which is arranged in a side wall of a piece of furniture. A piece of furniture 1 comprises a furniture body 2, for example for a wall unit in a kitchen, in which the rear wall has been omitted in FIG. At a front side of the furniture body 2 is closed by a flap 3 pivotally mounted. To guide the flap 3 is mounted on opposite side walls of the furniture body 2 each have a flap fitting 4, which has a housing 5. Each flap fitting 4 comprises a support lever 6 and a control lever 7, which are connected via a connection 9 with the flap 3. The two connections 9 of the opposite flap fittings 4 are synchronized via a rod 8, so that when opening and closing the flap 3, the flap fittings 4 are moved substantially synchronously.

FIG. 2 shows a flap fitting 4 with the flap 3 without furniture body 2. The housing 5 of the flap fitting 4 comprises two side walls 50 and 51, which are arranged spaced from each other by a plurality of spacers 52. Other types of housing can be used for the housing 5.

In Figures 3A and 3B, the flap 3 is shown in an open position. The flap 3 has been pivoted forwardly away from the furniture body 2 with an upper region, while a lower region of the flap 3, on which an unillustrated grip element is mounted, has been pivoted substantially vertically upwards. In this respect, the user only has to perform a slight horizontal movement and essentially a vertical movement when opening and closing the flap 3.

In Figures 4A and 4B, the flap fitting 4 is shown in a closed position. The support lever 6 and the control lever 7 are partially arranged parallel to each other and extend substantially in the vertical direction up to the connection 9, which is mounted on the flap 3. In Figure 5, the flap fitting 4 is shown in a closed position without the side wall 50 of the housing. The support lever 6 is articulated at one end about a rotation axis 61 on the connection 9 and on the opposite side about a rotation axis 60, which is provided on the housing 5. To the rotation axis 60 is rotatably connected to the support lever 6, a first gear 10 which is in engagement with a second gear 1 1, which is rotatably mounted about an axis of rotation 1 2 to the housing 5. At the second gear 1 1 spaced from the axis of rotation 1 2 of the gear 1 1, a rotation axis 70 is provided, on which the control lever 7 is rotatably mounted. The control lever 7 is rotatably mounted at the opposite end about a rotation axis 71 on the connection 9. The rotation axis 70 thus moves during an opening and closing operation of the flap 3, which is held on the connection 9.

In order to partially compensate for the weight forces of the flap 3 during opening and closing, an energy store 20 is provided which comprises three springs 21, in particular tension springs in the illustrated embodiment, which are arranged between a first spring holder 22 and a second spring holder 24. The second spring holder 24 is fixed via a fastening 25 on the housing 5. The spring holder 22 is connected via a rod 23 with a movable holder 1 8. On the holder 1 8 a receptacle 1 9 is provided, on which the rod 23 of the energy accumulator 20 is fixed, so that the holder 1 8 is biased by the energy accumulator 20. The holder 1 8 has a guide member 1 7, which is mounted in a cam guide 1 6 a control disk 1 5. The control disk 15 is rotatably mounted about an axis of rotation 14 which is provided on the housing 5. Furthermore, the control disk 1 5 is rotatably coupled to a third gear 13 which is in engagement with the first gear wheel 1 0.

Various positioning possibilities for the positioning of the rod 23 of the energy accumulator 20 are formed on the receptacle 1 9 of the holder 18, so that an optimal presetting of the spring action on the weight forces of the flap 3 to be compensated can already take place by selecting a suitable position. Instead of positioning options, a stepless presetting can be provided, for example in the form of a screw / nut connection, by which the position of the rod 23 to the holder 1 8 can be changed. The term "gearwheel" is understood to have turntables with an outer toothing, the outer toothing optionally extending over the entire circumference or only part of the circumference. Alternatively, toothed segments, internal gears or other components may be used as gears on which teeth for the positive engagement 'are provided with an adjacent gear.

On the housing 5, a damper 30 is further provided, which is designed as a linear damper, in particular as a fluid, liquid or air damper, which is held on a fastening element 31 on the housing 5 and comprises a piston-cylinder unit which creates damping forces when compressed. On the side facing away from the fastening element 31, a contact surface 32 is provided, for example a contact roller, which can be contacted by an actuating element 33 on the holder 18.

For an opening operation, a handle arranged in the lower region of the flap 3 is operated by a user to move the flap 3 forward and upward. In FIG. 6, the flap 3 is shown in a slightly open position. The energy accumulator 20 is stretched further at the beginning of the opening movement, since the flap 3 is biased in the closing direction in the closing direction. After overcoming a dead center of the energy storage device 20 supports the movement of the flap 3 in the opening direction. If the flap 3 is moved further in the opening direction, as shown in Figure 7, pivot both the support lever 6 about the axis of rotation 60 and the control lever 7 about the axis of rotation 70 which is disposed on the rotatable gear 1 1. From the closed position (FIG. 5) to the position in FIG. 7, the gear 1 1 has been rotated approximately 90 °, so that the axis of rotation 70 has also shifted. The gears 1 0 and 1 1 are engaged, so that the two support lever 6 and the control lever 7 are coupled to each other both in the region of the housing 5 and at the connection 9. By the rotation of the gear 10 and the third gear 1 3 is driven, which rotates the control disk 15. By turning the control disk 1 5, the cam guide 1 6 is moved, which allows a contraction of the springs 21 of the energy accumulator 20 during an opening movement after exceeding the dead center, so that the energy accumulator 20 supports the opening process. The flap 3 is moved further in the opening direction according to Figure 8, wherein an upper end of the flap 3 protrudes forward and upward. A lower portion of the flap moves substantially vertically upward just before the opening on the furniture body 2.

In Figure 9, the maximum opening position of the flap fitting 4 is shown. The flap 3 is slightly inclined to the horizontal, for example, in a range between 1 0 ° and 20 °, and are the opening portion of the furniture body 2 largely free. Before reaching the maximum opening position, the opening movement can be decelerated, for example by a damper, which is arranged in the connection 9. Alternatively or additionally, the damper 30 is provided in the housing 5, which is compressed by the actuating element 33 on the holder 18, as shown in Figure 8. For a closing movement, the user pulls the flap 3 down against the force of the force accumulator 20 until the flap 3 is again arranged in the closed position shown in FIG.

In the illustrated embodiment, three toothed wheels 1 0, 1 1 and 1 3 are arranged in the housing 5. It is also possible to provide in the housing 5 a gear with a predetermined ratio in order to even better match the tensioning and unloading of the energy accumulator 20 to the weight of the flap 3 and other parameters. In FIGS. 1 to 9, a flap fitting 4 is fastened to the inside of a side wall of a furniture carcass 2. In Figure 10, the flap fitting 4 is not integrated on an inner side but in a side wall of the furniture body 2. For this purpose, the side wall comprises a plate-shaped core material 80, for example of a wood material, on which the housing 5 of the flap fitting 4 is disposed adjacent, either over the entire width of the core material 80 or at a recess of the core material 80, which extends only over part of the width of the core material 80. The housing 5 and the core material 80 are covered on the outside by an outer layer 81 and on the inside by an inner layer 82, wherein the outer layer 81 and inner layer 82 can optionally also be of identical construction, for example of a film or a decorative layer. In the illustrated embodiment, the inner layer 82 is fixed to the core material 80 and the housing 5 via attachment points. The housing 5 may be glued to the core material 5 or fasteners may be connected. By the Order of the housing in the side wall a furniture body, the housing is visible only from one end face with the door open when the support lever 6 and the control lever 7 project forward.

LIST OF REFERENCE NUMBERS

1 furniture

2 furniture carcass

3 flap

4 flap fitting

5 housing

6 support lever

7 control lever

8 pole

9 connection

10 gear

1 1 gear

12 axis of rotation

13 gear

14 axis of rotation

15 control disk

1 6 Curve guide

17 guide element

18 holders

19 recording

20 energy storage

21 spring

22 spring holder

23 pole

24 penholder

25 attachment

30 dampers

31 fastener

32 contact area

33 actuator

50 side wall

51 sidewall

52 spacers

60 axis of rotation

61 axis of rotation

70 axis of rotation

71 axis of rotation

80 nuclear material

81 outer layer

82 inner layer

83 attachment points

Claims

claims

1 . Flap fitting (4), in particular for furniture, wherein the flap fitting (4) on a body (2) can be arranged, wherein the flap fitting (4) has a base body (5) on which a support lever (6) is rotatably mounted, and a pivotally mounted control lever (7), wherein the support lever (6) and the control lever (7) via spaced pivot axes (61, 71) are pivotally connected to a flap (3), wherein the support lever (6) during a rotational movement, a first gear ( 10) drives directly or indirectly a second gear (1 1) drives, characterized in that spaced from the axis of rotation (12) of the second gear (1 1) on the second gear (1 1) rotatably mounted the control lever (7) is.

2. flap fitting according to claim 1, characterized in that a

Force memory (20) is provided, which biases the flap (3) in a closed position in the closing direction and biases the flap (3) in an opening region in the opening direction.

3. flap fitting according to claim 1 or 2, characterized in that the force accumulator (20) via a rotatably mounted control disc (15) is coupled to at least one gear (13).

4. flap fitting according to claim 3, characterized in that in the control disc (15) a cam guide (1 6) is formed on which a with the energy storage device (20) connected to the holder (18) is guided.

5. flap fitting according to one of the preceding claims, characterized in that between two side walls (50, 51) of the housing (5) of a plurality of gears (10, 1 1, 13) formed transmission is provided.

6. flap fitting according to one of the preceding claims, characterized in that a damper (30) is provided, by means of which an opening and / or closing movement of the flap (3) can be braked before reaching an end position.

7. flap fitting according to one of the preceding claims, characterized in that on the flap (3) a connection (9) can be mounted is, on which the rotation axis (61) for the support lever (6) and the rotation axis (71) for the control lever (7) are provided.

8. flap fitting according to claim 7, characterized in that at the connection (9) a damper for braking an opening movement of the flap (3) is provided.

9. flap fitting according to one of the preceding claims, characterized in that the flap (3) during an opening movement with an upper portion of the flap fitting (4) is movable away.

10. Furniture with a furniture body (2) on which a flap (3) via two flap fittings (4) is held according to one of the preceding claims.