Flap fitting and piece of furniture
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2026-04-08
Smart Images
Figure EP2024064095_05122024_PF_FP_ABST
Abstract
Description
[0001] Flap fittings and furniture
[0002] The present invention relates to a flap fitting for a piece of furniture, comprising a housing on which at least one actuating arm is rotatably mounted on an axis, and a damper. The damper can be used to brake the movement of the actuating arm before reaching a maximum, adjustable opening position, which is determined by an opening limiter, and before reaching a closed position. Furthermore, the present invention relates to a piece of furniture with a flap fitting.
[0003] WO 2017 / 152212 A1 discloses a flap fitting for a furniture part for opening or closing a flap arranged thereon. The fitting comprises an actuating arm movable between two end positions. The movement of the actuating arm into the two end positions is damped by a damper, with an actuator acting on the damper during movement into both the first and second end positions. The damping serves to optimize the opening or closing movement of the flap. With flap fittings according to the prior art, the problem is that this is only possible in the end positions of the flap determined before assembly. This limits the versatility of their application.
[0004] It is therefore an object of the present invention to provide an improved flap fitting which can be used in a variety of ways.
[0005] The present invention solves this problem with a flap fitting having the features of claim 1, as well as with a piece of furniture having the features of claim 18.
[0006] The flap fitting according to the invention for a piece of furniture comprises a housing on which at least one actuating arm is mounted so as to be rotatable about an axis, and a damper by means of which the movement of the actuating arm can be slowed down in a damping range before reaching a maximum opening position, which is determined by an opening limiter, and before reaching a closed position. This allows for the reduction of harsh impact noises. The opening limiter is adjustable, allowing a maximum, adjustable opening position of the actuating arm and thus of a flap to be set. The opening limiter has an actuating contour and a limiting contour.The opening limiter allows the damper to be actuated within a damping range before reaching the maximum opening position. The maximum adjustable opening position is defined by the contact of the limiting contour with a limiting surface, so that the damping range remains constant when the opening limiter is adjusted. The opening limiter can act on the damper directly or via additional components, such as an actuating lever and a pressure element, and in particular, compress it.
[0007] A damping range can, for example, be defined such that the damper acts within a fixed angular range upstream of the maximum opening position defined by the opening limiter. The angular range or damping range can, in particular, be within an angle of 5° to 45°, and preferably 10° to 30°, upstream of the maximum opening position defined by the opening limiter. The damping range can, for example, be defined by an angle of 5° to 35°, and preferably 10° to 30°. Preferably, a starting angle at which the damping range begins can be adjusted by the opening limiter.
[0008] In one embodiment, the actuating arm can be designed with multiple joints, allowing the flap to be opened particularly advantageously and / or in a space-saving manner. Preferably, the actuating arm can have a retaining element for securing a flap, allowing it to be mounted advantageously.
[0009] The actuating lever preferably has at least one actuating surface and the boundary surface, wherein one actuating surface is assigned to the actuating contour.
[0010] The adjustable opening position using the adjustable opening limiter makes the flap fitting versatile, particularly for flaps and furniture with varying space requirements and / or for users of different heights. The damper's damping stroke remains unchanged when the opening limiter is adjusted, thus ensuring the damping effect is not reduced. Furthermore, the opening position can be set and / or adjusted during installation of the flap fitting or even subsequently. Furthermore, the adjustable damper operation using the adjustable opening limiter allows for optimal use of the damper in any set opening position, improving damping across the entire adjustment range of the opening limiter and increasing the service life of the flap fitting.The present invention also enables optimization of the number of components that the flap fitting has, since the damping of the movement of the actuating arm, as well as its maximum opening position, can be adjusted via the opening limiter.
[0011] In one embodiment, the opening limiter actuates the damper via an actuating lever, particularly before reaching the maximum opening position. The opening limiter transmits an opening force from the actuating arm to the actuating lever, which actuates the damper, so that, conversely, a damping force acts from the damper to the actuating arm. Through this and / or through the dimensioning and / or shape of the actuating lever, the damped range of the actuating arm's movement can be defined and / or variably adjustable. In particular, a pressure element is articulated and / or fixed and / or integrally formed on the actuating lever.
[0012] The damper can be actuated by means of the pressure element, which is guided, in particular, linearly, on a guide lever. This prevents transverse forces acting on the damper piston. The pressure element is, in particular, articulated, fixed, and / or integrally formed on the actuating lever, making it easy to manufacture and / or assemble.
[0013] For a particularly advantageous actuation of the damper, the pressure element can preferably be pivotably mounted on the actuating lever and / or displaceably mounted on the guide lever.
[0014] Preferably, the damper is arranged on the guide lever, in particular held or fixed, so that it can be advantageously mounted. In particular, the actuating lever and / or the guide lever are mounted on the housing in a displaceable and / or pivotable manner. This improves the damping of the actuating arm while simultaneously providing a space-saving design for the flap fitting.
[0015] The opening limiter is preferably arranged on the actuating arm, in particular held or fixed, so that it is easily accessible for adjustment. However, the opening limiter can also be arranged on the housing of the flap fitting, in particular in an adjustable manner. The arrangement of the components can thus be optimized for a specific application, for example for a specific dimensioning of the components of the flap fitting. The opening limiter, in particular in an adjustable manner, hits a stop within the flap fitting, in particular in the set maximum opening position of the support arm, so that the support arm can only be moved towards the opening position up to this stop.
[0016] The actuating lever and the guide lever can preferably be mounted on the housing so that they can each pivot about an axis, with the pressure element preferably being mounted on the guide lever so that it can be moved linearly. Such a lever mechanism allows the damper to be actuated particularly advantageously while maintaining a compact design.
[0017] In one embodiment, the pressure element can be a pin arranged on the actuating lever and inserted into a hole or eyelet arranged on a piston rod of the damper, so that the piston rod is pivotally mounted on the pin and thus on the pressure element at the eyelet, which can be formed integrally with the piston rod or as a separate component. Alternatively or additionally, the pin can be pivotally mounted on the actuating lever.
[0018] In another embodiment, a self-extending pressure damper can be used. In this case, no positive or non-positive connection is required between the piston rod and the pressure element. Contact between the piston rod and the pressure element is sufficient.
[0019] In one embodiment, the damper can be actuated before reaching the closed position by means of an actuating means arranged on the actuating arm, in particular by means of an actuating contour formed on the actuating arm. In particular, the actuating means can actuate the actuating lever upon movement of the actuating arm into the closed position, so that the actuating lever can actuate the damper. In this case, the damping force can be transmitted to the actuating arm via the actuating lever and the actuating means, so that movement of the actuating arm into the open position can be braked using simple means.
[0020] Optionally, a control cam can be formed in one or more parts with the actuating arm, on which actuating arm is arranged and on which a pressure roller can run, so that the actuating arm is operatively connected to a deflection lever on which the pressure roller can be rotatably arranged. The deflection lever can be operatively connected to at least one energy accumulator, which can preferably be pivotably mounted on the housing on at least one side of the actuating arm, so that the actuating arm can be at least partially acted upon with a force by means of the at least one energy accumulator. As a result, the force required to move the flap can be adjustable over the entire range of movement. The movement of the flap can also be assisted by the at least one energy accumulator. For an efficient design of the flap fitting, the actuating means can optionally be formed integrally with the control cam.
[0021] In a further embodiment, the damper can have an energy accumulator that can be subjected to a force upon actuation of the damper, so that the damper can, for example, be self-extending. Preferably, the energy accumulator exerts the applied force on the pressure element in the direction of an extended position, so that the damper, in particular the piston rod, can return to its original position in a self-extending manner. This can be designed such that the movement of the support arm can be braked both in the direction of the open position and in the direction of the closed position by the damper by means of the same actuation of the pressure element from the original position along at least a portion of the guide lever.
[0022] For a particularly advantageous effect, the damper can preferably be designed as a linear damper, in particular as a fluid damper, which is preloaded into an extended position, in particular by a spring. This allows the damper to be automatically moved to its original position after actuation. The damper and / or the energy accumulator preferably counteract the closing and / or opening movement of the support arm.
[0023] The damper may preferably have an actuating travel which is constant regardless of the setting of the opening limiter which determines the adjustable maximum opening position of the actuating arm, whereby it can be advantageously actuated and / or loaded.
[0024] In one embodiment, the damper can be designed as a piston-cylinder unit or as a rotary damper, allowing it to be optimized for a specific application, for example. The opening limiter is preferably designed as a lever that is connected to the support arm in an articulated and / or movable manner. This allows for particularly easy adjustment.
[0025] To adjust the opening position, the flap fitting preferably has at least one adjusting mechanism, which can be arranged in particular on the adjusting arm. In a particularly simple embodiment, the adjusting mechanism can comprise a screw. By at least partially adjusting the adjusting mechanism, e.g., by screwing the screw in or out, the position of the opening limiter can be easily adjusted. The opening limiter is preferably designed as a lever that is pivotably mounted on the adjusting arm about an axis. The opening limiter can be pivoted by at least partially adjusting the adjusting mechanism.Preferably, the lever can be adjusted substantially at an angle of 90° to 180° and more preferably of 120° to 160° to the actuating arm and / or the essential extension direction of the actuating arm, so that particularly advantageous opening positions of the actuating arm can be set.
[0026] The adjusting mechanism preferably has a thread and / or a wedge surface and / or an eccentric and / or a flat thread, so that the maximum adjustable opening position can be advantageously adjusted by the opening limiter.
[0027] In particular, the opening limiter is at least partially pressed or pulled against the adjusting mechanism by means of a spring. This allows it to be held particularly securely in the set position.
[0028] Preferably, in the opening position, the actuating arm can be arranged along a longest outer edge of the actuating arm at an angle, which can in particular be an opening angle, of 1° to 90°, preferably of 30° to 60°, and even more preferably of 45° to 55°, to the top panel of the furniture. This allows the angle to be adapted to the space available for the opening position.
[0029] The present invention further encompasses a piece of furniture having a furniture body on which a flap is held by at least one flap fitting according to the invention, in particular by two flap fittings according to the invention. The furniture body preferably has a top panel, above the upper side of which at least one flap fitting is arranged. The at least one flap fitting can be fixed to the top panel and / or to the side walls of the furniture body. In particular, it can be two flap fittings.
[0030] The invention will be explained in more detail below using several exemplary embodiments with reference to the accompanying drawings. They show:
[0031] Figure 1 is a perspective view of a piece of furniture with a
[0032] flap fitting;
[0033] Figures 2A and 2B show several rear views of the furniture of Figure 1 in the closed and open position of the flap;
[0034] Figure 3 shows a view of the flap fitting from Fig. 2A without
[0035] Furniture in different positions to illustrate the closing process;
[0036] Figures 4A to 4C show a view of the flap fitting of Figure 2A with an adjustment of the opening limiter in different positions to illustrate an opening process;
[0037] Figures 5A to 5C show a view of the flap fitting of Figure 2A with an alternative adjustment of the opening limiter in different positions to illustrate an opening process.
[0038] A piece of furniture 1 comprises a furniture body 2, on which a flap 3 is pivotably held by two flap fittings 10. The furniture 1 can be designed as a wall cabinet or other piece of cupboard furniture. The flap 3 is essentially plate-shaped and pivotably held by an actuating arm 11 of the flap fitting 10, as can be seen in Figure 2. The flap fitting 10 is arranged above a top panel 4 and in a free space 70 between two side walls of the furniture body 2, wherein the side walls project beyond the top panel 4, such that the flap fitting 10 is not visible in the horizontal direction. When the flap 3 is in the open position, a storage space 80 is accessible from a front side of the furniture body 2.
[0039] According to Figure 1, the furniture body 2 has a base 5 and the top panel 4, wherein one or more intermediate panels can optionally be arranged in the furniture body 2. Above an upper surface of the top panel 4, a flap fitting 10 is fixed on opposite sides, comprising a housing 12 on which an actuating arm 11 is mounted for rotation about a horizontal axis 21. The housing 12 is attached to the top panel 4 and / or at least one side wall of the furniture body 2.
[0040] Figure 2A shows an open position of the flap fitting 10. The flap 3 is arranged on a holding element 13, in particular screwed or plugged on. The holding element 13 is plugged onto the actuating arm 11, screwed on, or formed integrally with the actuating arm 11, wherein the actuating arm 11 is pivotally connected to the housing 12 of the flap fitting 10 at an axis 21. Alternatively or additionally, the flap 3 and / or the holding element 13 can be held securely to one another and / or to the actuating arm 11 by means of a rotary latch or a locking slide, which can particularly facilitate tool-free assembly of the flap.
[0041] Figure 2B shows a closed position of the flap fitting 10, with the flap 3 closing an opening in the furniture body 2. The actuating arm 11 is shown in a lowered state, in the closed position of the flap 3.
[0042] A reversing lever 18 is pivotally connected to the housing 12 of the flap fitting 10. At least one energy accumulator 31, which comprises two levers pivotally attached to the reversing lever 18 on an axis, is pivotally connected to the housing 12 at its other end on an axis. The energy accumulator 31 can in particular have at least one, preferably exactly two, and more preferably at least four springs, which are arranged within at least one at least one-part, preferably at least two-part, and / or a particularly telescopic, preferably extendable housing.
[0043] The energy accumulator 31 is compressed in the closed position of the flap 3 and is subjected to a force, in particular a closing force of the flap 3, which is transferred to the energy accumulator 31 when the flap 3 is closed. The energy accumulator 31 thus stores a force when the flap 3 is closed. The actuating arm 11 can be acted upon by the stored force, so that the force acts on the actuating arm 11, in particular during an opening movement of the flap 3.
[0044] The energy accumulator 31 can relax when the flap 3 is opened, causing the reversing lever 18 to move. Figure 2A shows the energy accumulator 31 in a more relaxed state than Figure 2B. The force stored in the energy accumulator 31 can be transferred via an adjustable element on the reversing lever 18 to the reversing lever 18, which is operatively connected to the actuating arm 11. This assists in opening the flap 3 by the force stored in the energy accumulator 31. A guide lever 23 is also pivotably mounted on the housing 12 about an axis 42.
[0045] Figure 3 shows a sectional view of a portion of the flap fitting 10 from Figures 1 to 2B during a movement of the actuating arm 11 and the flap 3 toward a closed position of the actuating arm 11. The actuating arm 11 is arranged along a longest outer edge of the actuating arm at an angle A to the top panel of the furniture. The flap 3 is arranged on the holding element 13, which is fastened to the actuating arm 11. At one end of the actuating arm 11, an opening limiter 26 is arranged, which is adjustable for setting the maximum opening position. The opening limiter 26 is pivotable in an articulated manner about an axis 21. As an alternative to the arrangement on the actuating arm 11, the opening limiter 26 can also be arranged on the housing 12, in particular pivotably mounted in an articulated manner about an axis.
[0046] A damper 27 is held on the guide lever 23. By means of the damper 27, a movement of the support arm can be braked before reaching a maximum opening position, wherein the maximum opening position is determined by means of an opening limiter 26. The damper 27 can be actuated by means of a pressure element 28 guided linearly displaceably on the guide lever 23, in particular by pressing a piston rod, which can optionally also be part of the pressure element 28, into a damper housing, which can in particular be filled with a fluid. The pressure element 28 is mounted on the actuating lever 22 such that the piston rod and the actuating lever 22 can be pivoted relative to one another on an axis predetermined by the pressure element 28. The piston rod and / or the pressure element 28 can be preloaded into the extended position by a spring.The pressure element 28 can be actuated via an actuating lever 22 which is pivotably mounted on the housing 12 about an axis 41.
[0047] In an end region of the actuating arm 11, preferably in a region between 1% and 50% of the length of the actuating arm 11 and preferably between 10% and 35% of the length of the actuating arm 11, starting from an end of the actuating arm 11 which is pivotally mounted on an axis 21, there is an actuating means 16 according to Figure 3.
[0048] The actuating arm 11 is mounted on the housing 12 so as to be rotatable about the axis 21. When the actuating arm 11 moves into the closed position, the actuating lever 22 can be actuated by means of the actuating means 16. For this purpose, the actuating lever 22 can optionally have a curved guide 15 formed at its end located on the axis 41. The curved guide 15 can be formed integrally with the actuating lever 22 or fixed to it as a separate part. When the actuating arm 11 moves into the closed position, the actuating means 16 presses against the actuating lever 22, for example with a projection 14 formed on the actuating means 16, so that the latter pivots and actuates the pressure element 28, and thus the damper 27. For this purpose, the pressure element 28 moves in a linear manner on the guide lever 23, on which the damper 27 is mounted.The guide lever 23 can pivot on the axis 42, so that the damper 27 is actuated with a corresponding damping stroke. This allows the movement of the support arm 11 to be braked. Optionally, a force accumulator 31, as shown in Figure 2A or 2B, can be subjected to a force via the reversing lever 18 during the closing movement of the support arm 11 and store this force.
[0049] The actuating means optionally has a control cam that is in contact with a pressure roller 17 arranged on the deflection lever 18 and running on the control cam. The actuating arm 11 can thus optionally be operatively connected to the deflection lever 18, which is mounted on the housing 12 for rotation about the axis 41. The optional control cam can be formed integrally with the actuating arm 11 or fixed to it as an additional component.
[0050] Figures 4A to 4C illustrate a movement of the actuating arm 11 into the open position. The actuating lever 22 can be actuated by means of the opening limiter 26. According to Figure 4B, the opening limiter 26 has an actuating contour 261 and a limiting contour 262. As shown in Figure 4C, the actuating lever 22 has at least one actuating surface 221, 223 and a limiting surface 222 on a curved guide 15, with one actuating surface 221 being associated with the actuating contour 261. The opening limiter 26, in particular the actuating contour 261, presses against the actuating lever 22, in particular against the actuating surface 221, so that the damper 27 can be actuated by means of the actuating lever 22, which actuates the pressure element 28, as in the case shown in Figure 3, during the closing movement of the actuating arm 11 and a movement of the actuating arm 11 into the opening position can be braked.
[0051] The maximum opening position is set by the opening limiter 26, which, as shown in Fig. 4C, is arranged in the maximum opening position such that it blocks the movement of the actuating arm 11 in the opening direction by abutting against an actuating mechanism 54 arranged on the actuating arm 11 and by abutting the limiting contour 262 against the limiting surface 222 on the actuating lever 22. The actuating mechanism 54 is designed here as an adjusting screw. The opening limiter 26 is arranged, in particular, essentially at an angle of approximately 120° to 160° to the essential longitudinal extent of the support arm 11.
[0052] Via the optional control cam with the adjacent pressure roller 17, the deflection lever 18 can optionally apply the force stored in the energy accumulator 31 to the actuating arm 11, thus supporting the opening movement of the actuating arm 11. The damper 27 has an actuating travel 271 that is constant regardless of the setting of the opening limiter 26, which determines the adjustable maximum opening position of the actuating arm 11.
[0053] Figures 5A to 5C show an opening movement of the actuating arm 11 from Figures 1 to 4C with an alternative adjustment of the opening limiter 26, so that an alternative maximum opening position of the actuating arm 11 and thus of the flap 3 is set. For this purpose, the actuating mechanism 54 is arranged rotated less far into the support arm 11 than in Figures 3A to 4C, so that the opening limiter 26, designed as a pivotable lever, is arranged in this setting essentially parallel to the actuating arm 11, in particular essentially at an angle of approximately 180° to the essential longitudinal extent of the actuating arm 11. According to the setting in Figures 5A to 5C, the actuating lever 22 actuates the pressure element 28 and thus the damper 27 mounted on the guide lever 23, as already described for Figures 3 to 4C.The guide lever 23 pivots on the axis 42, and a movement of the actuating arm 11 into the maximum opening position can be braked by means of the damper 27. As shown in Figure 5C, the maximum opening position is predetermined by the opening limiter 26, similar to that in Figure 4C. In the maximum opening position in Figure 5C, the actuating arm 11 is arranged at an angle A, which is in particular an opening angle, of 90° to a lower edge of the housing 12, which runs parallel to the top panel 4 of the body 2 of the piece of furniture 1.
[0054] Reference symbol
[0055] 1 furniture
[0056] 2 Corpus
[0057] 3 flap
[0058] 4 Topsoil
[0059] 5 Floor
[0060] 10 Flap fitting
[0061] 11 Actuating arm
[0062] 12 housings
[0063] 13 Holding element
[0064] 14 lead
[0065] 15 Curve guidance
[0066] 16 Actuating means
[0067] 17 Pressure roller
[0068] 18 bell crankshaft
[0069] 21 Axis
[0070] 22 operating lever
[0071] 221 operating surface
[0072] 222 Boundary area
[0073] 223 operating area
[0074] 23 guide lever
[0075] 26 opening limiters
[0076] 261 Actuating contour
[0077] 262 boundary contour
[0078] 27 dampers
[0079] 271 operating distance
[0080] 28 Pressure element
[0081] 31 energy storage
[0082] 41 Axis
[0083] 42 Axis
[0084] 54 screw
[0085] 70 free space
[0086] 80 storage space
[0087] A angle
Claims
Claims 1. A flap fitting (10) for a piece of furniture, comprising a housing (12) on which at least one actuating arm (11) is rotatably mounted on an axis (21), and a damper (27), wherein by means of the damper a movement of the actuating arm (11) can be braked before reaching a maximum, adjustable opening position, which is determined by means of an opening limiter (26), and before reaching a closed position, characterized in that the opening limiter (26) has an actuating contour (261) and a limiting contour (262), wherein the damper (27) can be actuated indirectly by the actuating contour (261) of the opening limiter (26), which is adjustable for setting the maximum opening position, before reaching the maximum opening position, wherein the maximum variable opening position is defined by the application of the limiting contour (262) to a limiting surface (222).
2. Flap fitting (10) according to claim 1, characterized in that the opening limiter (26) actuates the damper (27) via an actuating lever (22).
3. Flap fitting (10) according to claim 2, characterized in that the actuating lever (22) has at least one actuating surface (221, 223) and the boundary surface (222), wherein one actuating surface (221) is assigned to the actuating contour (261).
4. Flap fitting (10) according to claim 2, characterized in that a pressure element (28) is articulated and / or fixed and / or integrally formed on the actuating lever (22).
5. Flap fitting (10) according to claim 4, characterized in that the damper (27) can be actuated by means of the pressure element (28) which is displaceably guided on a guide lever (23).
6. Flap fitting (10) according to claim 5, characterized in that the damper (27) is held or fixed to the guide lever (23), 7. Flap fitting according to one of the preceding claims, characterized in that the damper (27) has an actuating path (271) which is constant regardless of the setting of the opening limiter (26) which determines the variable maximum opening position of the actuating arm (11).
8. Flap fitting (10) according to one of the preceding claims, characterized in that the opening limiter (26) is arranged on the actuating arm (11), in particular is mounted displaceably and / or pivotably.
9. Flap fitting according to one of the preceding claims, characterized in that the opening limiter (26) is arranged on the axis (21) of the actuating arm (11).
10. Flap fitting (10) according to one of the preceding claims, characterized in that the actuating lever (22) and / or the guide lever (23) is mounted displaceably and / or pivotably on the housing (12).
11. Flap fitting (10) according to one of the preceding claims, characterized in that the actuating lever (22) and the guide lever (23) are mounted on the housing (12) so as to be pivotable about an axis (41, 42) each.
12. Flap fitting (10) according to one of the preceding claims, characterized in that the damper (27) can be actuated before reaching the closed position by means of a further actuating contour (16) arranged on the actuating arm (11).
13. Flap fitting (10) according to one of the preceding claims, characterized in that the damper (27) has a force accumulator which can be acted upon by a force when the damper (27) is actuated and the force accumulator exerts the applied force on the pressure element (28), in particular in the direction of an extended position.
14. Flap fitting according to one of the preceding claims, characterized in that the flap fitting (10) has an adjusting mechanism (54) for adjusting the maximum adjustable opening position, which is arranged on the adjusting arm (11).
15. Flap fitting (10) according to claim 13 or 14, characterized in that the opening limiter (26) is at least partially pressed or pulled towards the adjusting mechanism (54) by means of a spring.
16. Flap fitting (10) according to one of claims 14 or 15, characterized in that the adjusting mechanism (54) has a thread and / or a wedge surface and / or an eccentric and / or a face thread, so that the maximum adjustable opening position can be set by the opening limiter (26).
17. Flap fitting according to one of the preceding claims, characterized in that the damper (27) is designed as a piston-cylinder unit or as Rotation damper is designed.
18. A piece of furniture (1) comprising a furniture body (2) to which a flap (3) is held by at least one flap fitting (10) according to one of the preceding claims.
19. Furniture according to claim 18, characterized in that the furniture body (2) has a top panel (4), above the top of which at least one flap fitting (10) is arranged.