EP3649313B1 - Flap fitting and piece of furniture - Google Patents

Description

The present invention relates to a flap fitting according to the preamble of claim 1 and a piece of furniture with a flap held on a body.

the WO 2009/060723 discloses a flap fitting in which a flap can be pivoted from a closed position at an opening of a furniture body to an open position, the flap being pivoted forward from a vertical position with an upper edge in order to release the opening on the furniture body. This type of pivoting movement is advantageous because the user can stand in the lower area of the flap and does not have to evade an opening movement of the flap, as is the case with doors with rotary movements about a vertical axis. A damper can be provided on the housing of the flap fitting in order to dampen a closing or opening movement of the flap. The disadvantage here is that the housing on the furniture body requires a comparatively large amount of space. Similar flap fittings also show DE 20 2010 015 091 and WO 2012/155165 .

WO 2011/045148 discloses a flap fitting for a piece of furniture, in which a flap can be pivoted into a horizontal position for storing objects. For this purpose, two pivotable levers are connected to the flap via a connection, on which a linear damper is arranged.

EP 0 044 081 discloses a flap fitting as a four-bar system in which the flap can be locked via a brake shoe with frictional forces.

DE 10 2014 106 911 discloses a hinge with a damping element.

It is therefore the object of the present invention to create a flap fitting that ensures comfortable handling and is of compact design.

This object is achieved with a flap fitting having the features of claim 1.

In the flap fitting according to the invention, a connection is provided on which a support lever and a control lever are articulated via rotary axes, with a damper being provided on the connection, which is activated via a movement of the support lever and/or the control lever during an opening movement of the flap before reaching the maximum opening position operable is. As a result, the installation space at the connection can be used to provide an opening damper that improves handling by avoiding loud impact noises during an opening movement. Shortly before the maximum opening position is reached, for example in a range between 4 and 8 cm in front of the opening position, the damper can slow down the opening movement in order to reduce the mechanical stress on the fittings and to avoid impact noise. In this case, the part of the flap fitting fixed to the body can be of compact design, since the opening damper takes place at least partially via the damper on the connection.

According to the invention, the damper is designed as a linear damper and comprises a damper housing and a piston rod that can be pushed into or extended into the damper housing. The damper can work, for example, as a fluid damper with hydraulic oil as the damping fluid, so that high damping forces can be provided. In order to ensure that the damper is ready for the next damping process after a closing process, the damper is preloaded into an extended position by a spring.

In order to avoid transverse forces on the damper, according to the invention a guide is provided on the connection, along which the damper can be pushed in or extended. The guide can be formed, for example, by a slot in the connection, in which a pin is guided.

The connection can, for example, comprise a U-shaped sheet steel, in which the damper is accommodated and on which the axes of rotation for the articulated mounting of the support lever and the control lever are formed. Alternatively, the connection can also be made in several parts.

An actuating surface or contact surface is preferably arranged on the support and/or control lever, which presses against an actuating surface or contact surface of the damper unit from a predetermined angular position of the flap fitting. The damper unit can have two actuating surfaces, for example, which are actuated by a first actuating surface during a closing movement and by a second actuating surface during an opening movement, so that opening and closing damping takes place via a single damper unit.

In the case of the flap fitting according to the invention, the support lever can be coupled to the control lever via a gear. For this purpose, the carrying lever a rotational movement driving a first gear wheel, which directly or indirectly drives a second gear wheel, the control lever being rotatably mounted on the second gear wheel at a distance from the axis of rotation of the second gear wheel. The pivoting movement of the flap when opening and closing can be optimized by the movable mounting of the axis of rotation of the control lever. In particular, a horizontal movement of the flap at the beginning of the opening movement can be kept small, so that after an initial movement the flap is pivoted essentially vertically upwards, with an upper area being able to pivot forward away from the flap fitting. Coupling the carrying lever and the control lever via gear wheels ensures precise guidance.

According to the invention, an energy accumulator is provided, which preloads the flap in a closing area in the closing direction and, after the dead center has been exceeded, preloads the flap in an opening area in the opening direction. This increases the ease of use, since the user only has to introduce forces at the start of the opening or closing movement and can then open or close the flap automatically after the dead center has been exceeded. Both the opening and the closing movement can be damped at least in one end area.

Figur 1

eine perspektivische Ansicht eines erfindungsgemäßen Möbels mit einem Klappenbeschlag;

Figur 2

eine perspektivische Ansicht der Frontblende mit einem Klappenbeschlag;

Figuren 3A und 3B

zwei Ansichten des Möbels der Figur 1 mit einer geöffneten Klappe;

Figuren 4A und 4B

zwei Ansichten des Schwenkbeschlages in einer geschlossenen Position;

Figur 5

eine Ansicht des Schwenkbeschlages mit teilweise abgenommenem Gehäuse in einer Schließposition;

Figuren 6 bis 8

mehrere Ansichten des Klappenbeschlages der Figur in unterschiedlichen Positionen;

Figur 9

eine Ansicht des Klappenbeschlages in einer Öffnungsposition;

Figuren 10A und 10B

zwei Detailansichten der Anbindung des Klappenbeschlages in einer Schließposition;

Figuren 11A bis 11C

mehrere Ansichten des Klappenbeschlages und der Anbindung in einer Öffnungsposition, und

Figur 12

eine Ansicht eines modifizierten Klappenbeschlages, der in einer Seitenwand eines Möbels angeordnet ist.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it:

figure 1

a perspective view of a piece of furniture according to the invention with a flap fitting;

figure 2

a perspective view of the front panel with a flap fitting;

Figures 3A and 3B

two views of the furniture figure 1 with an open flap;

Figures 4A and 4B

two views of the swivel fitting in a closed position;

figure 5

a view of the swivel fitting with the housing partially removed in a closed position;

Figures 6 to 8

several views of the flap fitting of the figure in different positions;

figure 9

a view of the flap fitting in an open position;

Figures 10A and 10B

two detailed views of the connection of the flap fitting in a closed position;

Figures 11A to 11C

several views of the flap fitting and the connection in an open position, and

figure 12

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 figure 1 the back wall was omitted. The furniture body 2 is closed on a front side by a pivotably mounted flap 3 . To guide the flap 3 , a flap fitting 4 that has a housing 5 is mounted on opposite side walls of the furniture body 2 . Each flap fitting 4 comprises a support lever 6 and a control lever 7 which are connected to the flap 3 via a connection 9 . The two connections 9 of the opposing flap fittings 4 are synchronized via a rod 8, so that when the flap 3 is opened and closed, the flap fittings 4 are moved essentially synchronously.

In figure 2 a flap fitting 4 with the flap 3 without a furniture body 2 is shown. The housing 5 of the flap fitting 4 comprises two side walls 50 and 51 which are spaced apart from one another by a large number of spacers 52 . Other housing shapes can also be used for the housing 5.

In the Figures 3A and 3B the flap 3 is shown in an open position. An upper area of the flap 3 has been pivoted forward away from the furniture body 2, while a lower area of the flap 3, on which a handle element (not shown) is mounted, has been pivoted essentially vertically upwards. In this respect, the user only has to perform a small horizontal movement and essentially a vertical movement when opening and closing the flap 3 .

In the 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 one another and run essentially 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 pivot axis 61 on the connection 9 and on the opposite side about a pivot axis 60 provided on the housing 5 . A first gear wheel 10 is connected in a rotationally fixed manner to the support lever 6 about the axis of rotation 60 and meshes with a second gear wheel 11 which is mounted on the housing 5 such that it can rotate about an axis of rotation 12 .

An axis of rotation 70 is provided on the second gear wheel 11 at a distance from the axis of rotation 12 of the gear wheel 11, on which axis the control lever 7 is rotatably mounted. The control lever 7 is mounted on the opposite end so that it can rotate about an axis of rotation 71 on the connection 9 . The axis of rotation 70 thus moves during an opening and closing process of the flap 3, which is held on the connection 9.

In order to partially compensate for the weight of the flap 3 during opening and closing, an energy accumulator 20 is provided, which comprises three springs 21, in particular tension springs in the exemplary embodiment shown, which are arranged between a first spring holder 22 and a second spring holder 24. The second spring holder 24 is fixed to the housing 5 via a fastening 25 . The spring holder 22 is connected to a movable holder 18 via a rod 23 . A receptacle 19 is provided on the holder 18 , on which the rod 23 of the energy storage device 20 is fixed, so that the holder 18 is prestressed by the energy storage device 20 . The holder 18 has a guide element 17 which is mounted in a cam guide 16 of a control disk 15 . The control disk 15 is mounted so that it can rotate about an axis of rotation 14 that is provided on the housing 5 . Furthermore, the control disk 15 is coupled in a torque-proof manner to a third gear wheel 13 which meshes with the first gear wheel 10 .

The term "gear wheel" is understood to mean rotary disks with external teeth, the external teeth optionally extending over the entire circumference or only part of the circumference. Alternatively, toothed segments, internal gears or other components can also be used as gears are provided on which teeth for the form-fitting 'engagement with an adjacent gear.

A damper 30 is also provided on the housing 5, 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 when compressed damping forces generated. A contact surface 32 is provided on the side facing away from the fastening element 31 , 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 area of the flap 3 is operated by a user in order to move the flap 3 forwards and upwards. In figure 6 the flap 3 is shown in a slightly open position. The energy accumulator 20 is tensioned further at the beginning of the opening movement, since the flap 3 is pretensioned in the closing direction in the area of the closed position. After a dead center has been overcome, the energy accumulator 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 is shown, both the support lever 6 pivots about the axis of rotation 60 and the control lever 7 pivots about the axis of rotation 70, which is arranged on the rotatable gear wheel 11. From the closed position ( figure 5 ) to the position in figure 7 the gearwheel 11 has been rotated by approximately 90°, so that the axis of rotation 70 has also shifted. The gears 10 and 11 are engaged so that the two support levers 6 and the control lever 7 are coupled to one another both in the area of the housing 5 and at the connection 9 . The rotation of the gear wheel 10 also drives the third gear wheel 13, which rotates the control disk 15. Turning the control disk 15 moves the cam guide 16, which allows the springs 21 of the energy store 20 to contract during an opening movement after the dead center has been exceeded, so that the energy store 20 supports the opening process.

The flap 3 is in accordance with figure 8 further moved in the opening direction with an upper end of the lid 3 protruding forward and upward. A lower area of the flap moves essentially vertically upwards 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 10° and 20°, and largely exposes the opening area on the furniture body 2 . Before the maximum opening position is reached, the opening movement can be slowed down, for example by a damper that 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 is shown in FIG figure 8 is shown.

For a closing movement, the user pulls the flap 3 downwards against the force of the energy accumulator 20 until the flap 3 is again arranged in the closed position shown in FIG.

In the illustrated embodiment, three gears 10, 11 and 13 are arranged in the housing 5. It is also possible to provide a gear with a predetermined gear ratio in the housing 5 in order to adapt the tensioning and discharging of the energy accumulator 20 even more to the weight of the flap 3 and other parameters.

In the Figures 10A and 10B the area of the connection 9 is shown in a closed position of the flap 3 ( figure 5 ). The connection 9 is formed from a steel sheet bent into a U-shape and has a guide 90 in the form of an elongated hole on opposite side walls, in which a pin 91 is guided. As can be seen from the sectional view, a damper 96 is located within the connection 9, which damper has a cylindrical damper housing 92 and a piston rod 93 which is held displaceably on the damper housing 92. The piston rod 93 is coupled to the connection 9 via a holder 94 . The axis of rotation 61 for the support lever 6 and the axis of rotation 71 for the control lever 7 are also provided on the connection 9 .

An actuating element 72 is located on the control lever 7 adjacent to the axis of rotation 71, which is designed as an angle and has an actuating projection on which an actuating roller 73 or an actuating element is provided.

If the flap 3 is now moved from the closed position to the open position, the flap fitting arrives in the in the shortly before reaching the maximum open position Figures 11A to 11C shown position. When the flap 3 is opened, the connection 9 is released by moving the support lever 6 and the Control lever 7 pivots, and the actuating element 72 reaches the front area of the connection 9 with the actuating roller 73. The actuating roller 73 can come to rest on the pin 91, which is slidably mounted in the guide 90. When the flap 3 pivots further in the opening direction, the actuating roller 73 of the actuating element 72 presses on the pin 91 and thus on the damper 96, which is compressed so that the piston rod 93 moves into the damper housing 92. As a result, the damper 96 generates damping forces that slow down the opening movement of the flap 3. The damper can be designed as a hydraulic damper with a damping fluid, for example an oil, or as an air damper. The damper 96 can be biased into an extended position by a spring (not shown), so that during a closing movement the damper 96 is moved back into the extended position by the spring and is available for the next damping process.

In the exemplary embodiment shown, the damper 96 is used in addition to the damper 30 for the backcheck. It is also possible to use only the damper 96 and to dispense with the damper 30 on the housing 5. The damper 96 can be aligned with its longitudinal axis parallel to a plane formed by the flap 3 . The position of the damper 96 can also be adjusted via a mechanism in order to set the effective range of the damper 96.

The flap fitting described here is only to be understood as an example. The articulated arrangement between the supporting and/or control lever at the connection is essential in order to actuate the damper directly or indirectly. The flap fitting shown is designed as a four-bar linkage, with the support and control lever being connected directly to the base body of the flap fitting. Other joint arrangements, such as a heptagonal joint, are also conceivable. In this case, the support and/or control levers that are arranged on the connection are connected indirectly to the base body.

In the Figures 1 to 9 a flap fitting 4 is fastened to the inside of a side wall of a furniture body 2 in each case. In figure 12 the flap fitting 4 is not integrated on an inside 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 made of a wooden material, on which the housing 5 of the flap fitting 4 is arranged adjacent, either over the entire width of the core material 80 or in a recess of the core material 80, which extends over only 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, with the outer layer 81 and inner layer 82 optionally also being able to be constructed in the same way, for example from a film or a decorative layer. In the exemplary embodiment shown, the inner layer 82 is fixed to the core material 80 and the housing 5 via attachment points. The housing 5 can be glued to the core material 5 or can be connected to fastening means. Due to the arrangement of the housing in the side wall of a piece of furniture, the housing is only visible from one end when the flap 3 is open, when the carrying lever 6 and the control lever 7 protrude forward.

Reference List

1

furniture

2

furniture body

3

flap

4

flap fitting

5

Housing

6

support lever

7

control lever

8th

pole

9

connection

10

gear

11

gear

12

axis of rotation

13

gear

14

axis of rotation

15

control disc

16

cornering

17

guide element

18

holder

19

recording

20

energy accumulator

21

Feather

22

pen holder

23

pole

24

pen holder

25

attachment

30

mute

31

fastener

32

contact surface

33

actuator

50

Side wall

51

Side wall

52

spacers

60

axis of rotation

61

axis of rotation

70

axis of rotation

71

axis of rotation

72

actuator

73

actuating roller

80

core material

81

outer layer

82

inner layer

83

attachment points

90

guide

91

Pen

92

damper housing

93

piston rod

94

holder

96

mute

Claims (12)

1. A flap fitting (4), in particular for an item of furniture, wherein the flap fitting (4) can be arranged on a body (2), wherein the flap fitting (4) comprises a main body, on which a supporting lever (6) is indirectly or directly rotatably mounted, and a pivotably mounted control lever (7), wherein the supporting lever (6) and the control lever (7) can be articulated with a flap (3) on an attachment (9) via spaced-apart axes of rotation (61, 71), whereby a damper (96) is provided on the attachment (9), which can be actuated via a movement of the supporting lever (6) and/or the control lever (7) during an opening movement of the flap (3) before reaching the maximally open position, and which is formed as a linear damper having a damper housing (92) and a piston rod (93) held displaceably on the damper housing (92) and the damper (96) is pre-tensioned by a spring in an extended position, whereby a force accumulator (20) is provided, which pre-tensions the flap (3) in a closed position in the closing direction, characterized in that the force accumulator (20) pre-tensions the flap (3) in an opening range in the opening direction and that a guide (90), along which the damper (96) is retractable or extendable in order to prevent lateral forces on the damper (96), is provided on the attachment (9).
2. The flap fitting according to Claim 1, characterized in that the guide (90) comprises an oblong hole or a groove in the attachment (9), in which a guide element (91) is guided.
3. The flap fitting according to Claim 1 or 2, characterized in that the attachment (9) comprises a U-shaped steel plate in which the damper (96) is accommodated.
4. The flap fitting according to any one of the preceding claims, characterized in that the damper (96) on the attachment (9) can be actuated directly or indirectly via a movement of the supporting lever (6) and/or the control lever (7) during a closing movement of the flap (3) before reaching the maximally closed position.
5. The flap fitting according to any one of the preceding claims, characterized in that an actuating surface is arranged on the supporting and/or control lever, which presses against an actuating surface of the damper unit from a predetermined angle position of the flap fitting.
6. The flap fitting according to Claim 5, characterized in that the damper unit comprises two actuating surfaces.
7. The flap fitting according to Claim 6, characterized in that the damper unit is actuated by means of a first actuating surface during a closing movement and is actuated by means of a second actuating surface during an opening movement.
8. The flap fitting according to any one of the preceding claims, characterized in that the damper (96) is aligned in parallel to a rear side of the flap (3) in its longitudinal extension/axis of the piston.
9. The flap fitting according to any one of the preceding claims, characterized in that the attachment comprises an adjustment for adjusting the flap (3).
10. The flap fitting according to any one of the preceding claims, characterized in that the position of the damper (96) is adjustable to set the action range of the damper.
11. The flap fitting according to any one of the preceding claims, characterized in that the position of at least one actuating surface on the supporting and/or control lever is adjustable to set the action range of the damper (96).
12. An item of furniture having a furniture body (2), on which a flap (3) is held via at least two flap fittings (4) according to any one of the preceding claims.

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