Furniture fitting for articulated connection of a movable furniture part to a furniture carcass

Abstract

The invention relate to a furniture fitting for the articulated connection of a movable furniture part (49) to a furniture carcass, comprising: - a lever arm (2) that is pivotably mounted on a base element (3) so as to be movable about a movement pin (S2) between an open position and a closed position; - a force accumulator (4) for applying force to the lever arm (2) in the direction for assuming the open position; - at least two levers (6, 7) pivotably connected to one another at a joint (9), wherein - one of the levers (6, 7) is connected to the force accumulator (4) and another of the levers (6, 7) is connected to the lever arm (2), - a force setting unit (10), arranged on a first lever (6) of the at least two levers (6, 7), for setting the force acting on the lever arm (2), wherein - the force setting unit (10) has a guide contour (11) and a guide element (12) movable along the guide contour (11), wherein the joint (9) is movable with the guide element (12) along the guide contour (11), wherein - the force setting unit (10) has a movement unit (13), which is arranged at a distance from the guide contour (11) and connected to the guide element (12), for moving the joint (9) along the guide contour (11).

Description

[0001] Furniture fitting for articulated connection of a movable furniture part to a furniture body

[0002] Description

[0003] The invention relates to a furniture fitting for articulatedly connecting a movable furniture part to a furniture body, comprising

[0004] - a lever arm which is pivotably attached to a base element about an adjusting axis between an open position and a closed position,

[0005] - a power storage device for applying force to the lever arm in the direction of assuming the open position,

[0006] - at least two levers pivotably connected to each other at a joint, wherein

[0007] - one of the levers is connected to the energy storage device and another of the levers is connected to the lever arm,

[0008] - a force adjustment unit arranged on a first lever of at least two levers for adjusting the force acting on the lever arm.

[0009] Furniture fittings of the type mentioned above are used, for example, to attach movable furniture parts, in particular flaps, folding flaps, doors or the like, to a furniture body in an adjustable manner between a closed position and an open position.

[0010] From WO 2014 / 134642 A1, for example, an actuator for moving a furniture flap is known, comprising an actuating arm for moving the flap and a spring device for applying a pivoting torque to the actuating arm in the opening direction. The actuator has an adjusting device arranged on an actuating lever, with an adjusting screw having a base body with a threaded section. The pivoting torque acting on the actuating arm by the spring device is adjustable via a nut that can be adjusted along the base body. The spring device engages at two points of application formed on the nut. Moving the nut along the base body of the adjusting screw causes a change in the ratio of the point of application to a rotational axis of the actuating lever.

[0011] DE 10 2019 113 337 A1 discloses a furniture fitting comprising a kinematic arrangement with levers and joints. By means of this kinematic arrangement, a door or flap can be moved from a closed position to an open position. The joints and levers form a linkage chain with a fixed joint whose position remains unchanged when the linkage chain is adjusted. The linkage chain has a fastening lever that is connected to the door or flap. Furthermore, a holding device is provided which acts on the linkage chain with at least one spring element and is coupled to an actuating element via a pivot lever. Finally, an adjusting device is provided with which the point of force application of the holding device can be changed in a given position of the linkage chain by means of an adjusting element.

[0012] From AT 524337 A1 a furniture drive for moving a furniture part which is mounted so as to be movable relative to a furniture body, with an adjusting arm and an adjusting device by which the position of a maximum open position of the at least one adjusting arm can be adjusted.

[0013] WO 2022 / 082239 A1 shows a furniture drive for moving a furniture front relative to a furniture body.

[0014] The present invention is based on the objective of providing a furniture fitting that enables a simple and reliable adjustment of the force acting on the lever arm in the direction of assuming the open position.

[0015] The problem is solved by a furniture fitting for articulatedly connecting a movable furniture part to a furniture body, comprising a lever arm that is pivotably attached to a base element about an adjusting axis between an open position and a closed position. According to the invention, the furniture fitting has a force storage device for applying force to the lever arm in the direction of assuming the open position and at least two levers pivotably connected to each other at a joint. According to the invention, one of the levers is connected to the force storage device and another of the levers is connected to the lever arm. According to the invention, the furniture fitting has a force adjustment unit arranged on a first lever of the at least two levers for adjusting the force acting on the lever arm. According to the invention, the force adjustment unit has a guide contour and a guide element adjustable along the guide contour.According to the invention, the joint is adjustable along the guide contour with respect to the guide element. The force adjustment unit comprises an adjustment unit arranged at a distance from the guide contour and connected to the guide element for moving the joint along the guide contour.

[0016] The interaction of the energy storage device and the lever ensures reliable support of the lever arm when it reaches the open position. By adjusting the guide element with the joint along the guide contour, the force acting on the lever in the direction of reaching the open position can be easily changed. In particular, the torque acting on the lever arm around the adjustment axis can also be changed by adjusting the force via the force adjustment unit. By arranging the adjustment unit at a distance from the guide contour and especially the joint, i.e., preferably decoupled from the guide contour, the relationship between the adjustment path of the guide element and the change in the force acting to reach the open position of the lever arm can be individually adapted to any desired conditions by the design of the guide contour.

[0017] A furniture fitting, particularly a flap fitting, can be understood as a device by which a movable furniture part, for example, a flap, folding flap, door, or the like, is articulated to the furniture body. A furniture body can be understood as a solid part that constitutes the actual form of the furniture, particularly without inserts such as doors or drawers. For example, the furniture fitting can be connected to the base element on a wall element of the furniture, such as a side panel of the furniture body. An articulated connection between two elements means that these elements are connected to each other at one or more joints, allowing for any movement relative to each other, for example, rotation and / or linear motion.

[0018] The lever arm can be made of one or more parts. It pivots around its axis between the closed and open positions. In the closed position, the movable furniture part can be designed to close an interior compartment of the furniture body. In the open position, the lever arm is positioned so that it opens the interior compartment. In a multi-part design, the lever arm can include a protective element to prevent pinching between the articulated parts.

[0019] The energy storage device is designed such that the lever arm is subjected to force to reach the open position. For example, the energy storage device can incorporate a spring element.

[0020] One of the levers can be connected to the lever arm, while another lever is connected to the energy storage device. The two levers are pivotally connected to each other via a joint about a joint axis. Preferably, the joint can be a knee joint. The levers can preferably be flat, i.e., they have an extension in both the vertical and horizontal directions that corresponds to a multiple of the thickness of the levers.

[0021] Preferably, the joint can be formed by or on the guide element. The guide contour and the guide element of the force adjustment unit are arranged on a first lever of the two levers. Each of the two levers can have an outer surface and a contact surface arranged at a distance from the outer surface. Preferably, the levers can be connected to each other at the joint such that the contact surfaces face each other. The contact surface and the outer surface can each be arranged on a lever element of the levers.

[0022] Preferably, one of the two levers can have two lever elements sandwiching together a lever element of the other lever along the pivot axis. Preferably, the first lever can have two first lever elements, the first lever elements being spaced apart from each other along the pivot axis to enclose a second lever element of the second lever. The contact surfaces of the first lever elements can be arranged facing each other, such that the contact surface and the outer surface of the second lever element each face one of the contact surfaces of the first lever elements. The first lever elements are particularly preferably identical. For example, the lever elements can each be formed as sheet metal parts.

[0023] The guide contour and / or the guide element can be designed such that the guide element is adjustable along the guide contour. For example, the guide contour can be formed as a recess, i.e., a free area, of the first lever, in particular the lever element or elements of the first lever. The guide element can preferably be formed as a pin element and have a cylindrical contour. Alternatively, the guide element can be formed as a projection extending from a second lever or the two levers. The guide element can be designed such that it penetrates the guide contour and preferably projects from the outer surface of the first lever element.

[0024] The adjusting unit is designed and / or arranged on the first lever such that the guide element can be moved along the guide contour by actuating the adjusting unit. Furthermore, the adjusting unit is connected to the guide element in such a way that actuating or adjusting the adjusting unit moves the guide element with the joint along the guide contour.

[0025] To adjust the force acting on the lever arm towards reaching the open position, a user can operate and / or adjust the adjustment unit, thereby moving the guide element along the guide contour.

[0026] Following a possible further development, the adjustment unit can be connected to the guide element via a coupling element. The coupling element can be arranged at one end on the guide element and at the other end on the adjustment unit. For example, the coupling element can be connected to the guide element and / or the adjustment unit by force-fit and / or positive locking. Preferably, the coupling element can be flat, particularly like the levers. The additional coupling element allows for easy connection of the guide element to the adjustment unit. Because the coupling element is connected to the guide element and / or the adjustment unit by force-fit and / or positive locking, the furniture fitting can be easily and quickly disassembled for maintenance.

[0027] According to one possible embodiment, the adjusting unit can have a threaded spindle rotatably mounted on the first lever about a longitudinal axis and a threaded nut arranged on the threaded spindle and connected to the coupling element. The threaded spindle can be rotatably mounted about the longitudinal axis in at least one bearing element on the first lever. The longitudinal axis is understood to be the longitudinal axis of the threaded spindle. Preferably, the threaded spindle can be mounted in two bearing elements. The bearing elements are, for example, arranged in the region of the ends of the threaded spindle. For example, a plain bearing, a receptacle for the rotatable mounting of one end of the threaded spindle, and / or a rolling bearing can be provided as bearing elements for one or both ends of the threaded spindle.

[0028] The threaded spindle can preferably be arranged in a direction transverse to the longitudinal axis at a distance from the guide contour. To achieve a compact and, in particular, flat design of the furniture fitting, the first lever can have a spindle receptacle, i.e., preferably a free area of ​​the lever element(s) extending from the outer surface to the contact surface, for arranging the threaded spindle. Particularly preferably, the threaded spindle can be mounted between the two first lever elements of the first lever.

[0029] The threaded nut can preferably be arranged behind the at least one bearing element on the threaded spindle, viewed from a first end of the threaded spindle. Preferably, the threaded nut can be adjustably arranged on the threaded spindle between the two bearing elements along its longitudinal axis. Preferably, the threaded nut can be connected to the coupling element in such a way that the threaded nut is secured against rotation about the longitudinal axis of the threaded spindle, and rotation of the threaded spindle about its longitudinal axis causes a linear adjustment of the threaded nut along its longitudinal axis. The threaded spindle and the threaded nut enable a particularly simple and compact design of the adjustment unit, and the connection of the threaded nut to the guide element via the coupling element allows for simple and reliable movement of the guide element.

[0030] In one possible embodiment, the coupling element can be designed such that adjusting the threaded nut along the threaded spindle causes the guide element with the joint to move along the guide contour. Preferably, the coupling element can be curved or bent. Particularly preferably, the coupling element can be rotatably coupled to the guide element and / or the threaded nut. For example, the coupling element can have openings for at least partially arranging the guide element or the threaded nut.

[0031] The guide element and / or the threaded nut may preferably have coupling sections for rotatable coupling in the openings. The openings may be designed such that the coupling sections are rotatably arranged in the openings. For example, a clearance fit may be provided between a coupling section and the respective opening.

[0032] The force adjustment unit can have two coupling elements arranged at a distance from each other on the first lever. The coupling elements can preferably be arranged at a distance from each other along the joint axis. Particularly preferably, the coupling elements can be arranged on the outer surface of the first lever elements of the first lever. Furthermore, the coupling elements can be identical in shape and arranged congruently with each other.

[0033] According to one possible embodiment, the guide contour can be formed such that adjusting the threaded nut along the threaded spindle results in a substantially linear change in the force acting on the lever arm when moving from the closed to the open position. Preferably, the guide contour can be curved. Particularly preferably, the guide contour can be at least partially curved in a plane perpendicular to the pivot axis of the joint. The guide contour can be curved such that adjusting the threaded nut along the adjustment path of the threaded spindle results in a linear adjustment of the force acting on the lever arm. In particular, the guide contour can be curved in only one direction. Furthermore, the guide contour can have rounded end regions.The advantageous design of the guide contour enables a linear force adjustment in a particularly simple way, thus allowing reliable adjustment of the desired and / or required force to support a user in adjusting a movable piece of furniture by means of the lever arm into the open position.

[0034] In a possible further development, the force-adjusting unit can include an actuating unit arranged on the first lever for rotating the threaded spindle about its longitudinal axis. The actuating unit can be designed such that actuating and / or adjusting, in particular rotating, the actuating unit causes a rotational movement of the threaded spindle about its longitudinal axis. The actuating unit can preferably be connected to the threaded spindle. Particularly preferably, the actuating unit can have two engaging actuating elements, wherein a first actuating element is connected to an end section of the threaded spindle or is formed integrally with the threaded spindle, and a second actuating element is rotatably mounted on the first lever. The actuating elements can form a gear drive for transmitting a rotational movement from the actuating unit to the threaded spindle.

[0035] The two actuating elements can be designed and / or arranged such that the rotational movement of the second actuating element is redirected to the first actuating element and the associated threaded spindle. The second actuating element can be rotatably mounted on the first lever about an axis of rotation arranged perpendicular to the contact surface and / or the plane perpendicular to the joint axis. The axis of rotation of the second actuating element can be arranged transversely, in particular perpendicularly, to the longitudinal axis of the threaded spindle.

[0036] The first adjusting element can be arranged on a first end section of the threaded spindle located at the first end. Preferably, the first adjusting element can be arranged on the threaded spindle such that all bearing elements for rotatably supporting the threaded spindle in the direction of the threaded spindle's longitudinal axis are located on one side of the first adjusting element. Particularly preferably, the first adjusting element can be arranged on an end face of the threaded spindle. Furthermore, the first adjusting element can be connected to the threaded spindle, for example, by a force-fit or positive-locking connection. Preferably, a locking element can be provided to prevent rotation of the first adjusting element relative to the threaded spindle. The locking element can, for example, be a key or a retaining ring. The first adjusting element can preferably be a gear.

[0037] The second actuating element can be arranged on the first lever such that it can be operated from the contact surface of the first lever. Preferably, the second actuating element can be formed as a toothed disc. For example, the gear drive can be a bevel gear drive, in particular where the first actuating element can be a pinion and the second actuating element a ring gear. Furthermore, the second actuating element can be arranged on one of the first lever elements, in particular on the outer surface of one of the two first lever elements. Additionally, a further second actuating element can be arranged on the other of the two first lever elements.

[0038] Rotating the second actuating element(s), and thus operating the adjustment unit, can preferably be done manually, for example by a user such as a technician. Preferably, the second actuating element can have an actuating section. For example, the actuating section can be designed such that a screwdriver can be positioned on the actuating section to rotate the second actuating element. In particular, the actuating section can be formed as a recess or slot. The base element can have a through-opening located in the area of ​​the actuating section, particularly one that is congruent with the actuating section, to allow easy access to the actuating section.

[0039] The actuator simplifies the operation of the adjustment unit. Furthermore, the actuators, in conjunction with the redirection of the rotary motion, contribute to an even more compact design of the furniture fitting and easier access to the actuator.

[0040] According to one possible embodiment, the furniture fitting can have several recesses arranged at intervals along an indication axis on the base element to indicate the applied force. The recesses can be arranged at uniform intervals in the direction of the indication axis. The indication axis can preferably be located on a first surface of the base element that is parallel to the levers, in particular parallel to the contact surfaces and bearing surfaces of the levers.

[0041] The recesses can be formed as openings penetrating the base element. Preferably, the recesses can have an elliptical cross-section, arranged transversely, especially perpendicularly to the first surface, but can also be polygonal or circular. Particularly preferably, the recesses are formed such that the position of the threaded nut on the threaded spindle is recognizable. In addition to the recesses, indicator points, in particular force values, for reading the set force can be arranged on the base element. The indicator points can, for example, be arranged on a second surface of the base element facing away from the first surface. Furthermore, the indicator points can, for example, be glued, printed, and / or embossed onto the second surface. Alternatively or additionally, the indicator points can protrude from the second surface of the base element as raised areas.

[0042] Particularly preferably, the first lever can be rotatably attached to the base element in such a way that the longitudinal axis of the threaded spindle is arranged parallel and congruent with the indication axis of the recesses in the open position.

[0043] Preferably, the furniture fitting can have an opening angle limiter to allow the maximum swivel angle to be set at least between a first angular position and a second angular position. Preferably, several first recesses can be arranged at intervals along a first indication axis on the base element, and several second recesses can be arranged at intervals along a second indication axis arranged at an angle to the first indication axis. The first indication axis can be assigned to the first angular position. Similarly, the second indication axis can be assigned to the second angular position. The recesses and the advantageous arrangement of the first lever enable quick and easy detection of the threaded nut's position. Furthermore, the accuracy of the force setting can be improved by reading the set force values.

[0044] In a possible further development, the first lever or a second lever can be connected to the movable furniture part via a lever assembly. The lever arm, for example, can connect the first lever to the movable furniture part as part of the lever assembly. Preferably, the lever assembly can have one or more levers for connecting the first lever to the movable furniture part. Particularly preferably, the first lever can be pivotally connected to the lever arm via a third and a fourth lever. The opening angle limiter can preferably be arranged on the fourth lever. The levers can preferably each be pivotally connected to one another, in particular by means of a swivel joint. Furthermore, the base element can have a guide, for example, a recess or groove, for the third lever.

[0045] Particularly preferably, the second lever and / or the lever assembly can each be formed in multiple parts, wherein at least one part of the second lever or a part of the lever assembly, in particular the lever arm and / or the third lever, is rotatably attached to the base element. For example, the second lever and / or the third lever can have at least two lever parts articulated together. A damping element for damping the lever arm in the direction of reaching the closed position can be arranged on the third and / or fourth lever. The damping element can preferably be designed such that the third lever of the lever assembly is damped by force and / or friction when the lever arm is moved from the open position to the closed position. Alternatively or additionally, a further damping element can be provided on the fourth lever. One or both damping elements can have a spring element for applying the damping force.The lever arrangement allows for the attachment of one or more damping elements. The multi-part design of the second lever and / or the lever arrangement enables an even more compact design for the furniture fitting.

[0046] In one possible embodiment, the energy storage device can comprise a flat spring. For the purposes of this disclosure, flat springs are understood to be springs bounded on two opposite sides by flat surfaces, each having a height and width dimension many times greater than the thickness of the spring. The flat spring can be made of a flat material. The flat material can be plate-shaped. In other words, the flat material can be a flat piece of material of uniform thickness, bounded on two opposite sides by surfaces that are very large relative to its thickness. The flat spring can preferably be resiliently loaded between the base element and the lever arm in a plane of the flat material. The flat spring can also be resiliently loaded between the base element and the lever arm perpendicular to a thickness of the flat material.

[0047] Particularly preferably, the flat spring can be U-shaped in the plane of the flat material and form a first leg and a second leg that transition into each other via a deflection section. The first leg can be rotatably attached to the base element at one end, and the second leg can be connected to the second lever at a pivot point at its other end. The first end can have a convex, partially cylindrical outer surface with which the flat spring is held in sliding contact with a complementary, concave, partially cylindrical first sliding surface of the base element. The first end of the flat spring can be arranged to be fixed against displacement relative to the base element in a direction perpendicular to the plane of the flat material.For example, the first end can be rotatably mounted on a pin firmly connected to the base element, or the first end of the flat spring can engage positively in a recess of the base element.

[0048] The second leg can be connected to the second lever at the pivot point at a second end. The second leg can be adjustable and guided on the base element. A flat second sliding surface can be formed on the base element, against which the second lever is held in a sliding position. A sliding element for the bearing of the second lever can be arranged on the base element.

[0049] The invention further relates to a piece of furniture comprising a movable furniture part and a furniture fitting articulated to the furniture part. The furniture can, for example, be a wall cabinet for the kitchen. The movable furniture part can, for example, be a flap, in particular a folding flap with a lower and an upper flap element. The furniture fitting, in particular the flap fitting, can be connected to the base element on a wall element of the furniture, for example, a side panel.

[0050] An embodiment of the invention is explained below with reference to the drawings. The drawings show, in schematic representation:

[0051] Figure 1 shows a side view of a furniture fitting according to the invention with a lever arm arranged in an open position and three levers,

[0052] Figure 2 shows a side view of the furniture fitting from Figure 1 with the lever arm and levers arranged in the closed position.

[0053] Figure 3 shows a detailed view of the levers of the lever arm from Figures 1 and 2 and a force adjustment unit arranged on a first lever.

[0054] Figure 4 shows a detailed view of the levers of the lever arm from Figure 3 and the adjusted force adjustment unit.

[0055] Figure 5 shows a perspective view of the levers of a second embodiment of the furniture fitting.

[0056] Figure 6 shows a sectional view of a force adjustment unit of the furniture fitting from Figure 5 and

[0057] Figure 1 shows a side view of a piece of furniture with a movable furniture part and the furniture fitting shown in Figures 1 to 4. Figures 1 and 2 show a furniture fitting 1 with a lever arm 2, which is pivotably attached to a base element 3 about an adjusting axis S2 between an open position, as shown in Figure 1, and a closed position, as shown in Figure 2. For clarity, the furniture fitting 1 is shown without a side panel that would enclose it.

[0058] The furniture fitting 1 has a force storage device 4 for applying force to the lever arm 2 in the direction of assuming the open position and at least two levers 6, 7 articulated together. A first lever 6 is connected to the lever arm 2 via a lever arrangement 8, and a second lever 7 is connected to the force storage device 4. The first lever 6 and the second lever 7 are pivotably connected to each other about a pivot axis G9 via a joint 9.

[0059] A force adjustment unit 10 is arranged on the first lever 6. The force adjustment unit 10 has a guide contour 11 and a guide element 12 that is adjustable along the guide contour 11. The joint 9, for example a knee joint, is adjustable along the guide contour 11 with the guide element 12. Furthermore, the force adjustment unit 10 has an adjustment unit 13 arranged at a distance from the guide contour 11 and connected to the guide element 12.

[0060] The first lever 6, as shown in Figures 3 and 4, has a first outer surface 14 and a first contact surface 15 arranged at a distance from the first outer surface 14. Similarly, the second lever 7 has a second outer surface 16 and a second contact surface 17 arranged at a distance from the second outer surface 16. The contact surfaces 15, 17 of the first and second levers 6, 7 are arranged facing each other.

[0061] The guide element 12 can be formed as a projection extending from the second contact surface 17 of the second lever 7. The guide element 12 penetrates the guide contour 11 and projects from the first outer surface 14 of the first lever 6.

[0062] The adjusting unit 13 has a threaded spindle 18 rotatably mounted on the first lever 6 about a longitudinal axis L and a threaded nut 19 arranged on the threaded spindle 18. The threaded spindle 18 is mounted on the first lever 6 in two bearing elements 20, 21. A first bearing element 20, in the form of a rolling bearing or sliding bearing, is arranged at a first end section 22 of the threaded spindle 18. A second bearing element 21, in the form of a receptacle, is arranged at a second end section 23 of the threaded spindle 18. For mounting the threaded spindle 18, the first lever 6 has a spindle receptacle 24, i.e., a free area extending from the first outer surface 14 to the first contact surface 15.

[0063] The threaded nut 19 is adjustably arranged on the threaded spindle 18 between the two bearing elements 20, 21 along the longitudinal axis L. The adjusting unit 13 is connected to the guide element 12 via a coupling element 25. The coupling element 25 is located at one end on the guide element 12 and at the other end on the threaded nut 19 of the adjusting unit 13. Furthermore, the coupling element 25 can be rotatably coupled to both the guide element 12 and the threaded nut 19. Through this rotatable coupling, the threaded nut 19 is connected to the coupling element 25 in such a way that the threaded nut 19 is secured against rotation about the longitudinal axis L of the threaded spindle 18, and rotation of the threaded spindle 18 about the longitudinal axis L causes a linear adjustment of the threaded nut 19 along the longitudinal axis L.

[0064] The guide contour 11 is designed such that adjusting the threaded nut 19 along the threaded spindle 18 causes a substantially linear change in the force acting on the lever arm 2 when moving from the closed position to the open position. For this purpose, the guide contour 11 can be bent or at least partially curved in a plane perpendicular to the pivot axis G9 of the joint 9, i.e., for example, in a plane parallel to the first contact surface 14 and / or the first outer surface 15.

[0065] Furthermore, the force adjustment unit 10 has an actuating unit 26 arranged on the first lever 6 for rotating the threaded spindle 18 about the longitudinal axis L. The actuating unit 26 has two engaging actuating elements 27, 28. A first actuating element 27 is connected to the first end section 22 of the threaded spindle 18, and a second actuating element 28 is rotatably mounted on the first lever 6. The actuating elements 27, 28 of the actuating unit 26 form a gear drive for transmitting a rotary motion from the actuating unit 26 to the threaded spindle 18. The first actuating element 27 is rotatable about the longitudinal axis L of the threaded spindle 18, and the second actuating element 28 is rotatably mounted on the first lever 6 about a rotation axis D28 arranged perpendicular to the longitudinal axis L of the threaded spindle 18.

[0066] The first adjusting element 27 is arranged on an end face 29 of the threaded spindle 18 and is connected to the threaded spindle 18 via a force-fit and / or positive-locking connection or is formed integrally with, or as a component of, the threaded spindle 18. The first adjusting element 27 is, for example, formed as a gear.

[0067] The second actuating element 28 is arranged on the first lever 6 such that it can be operated from the first outer surface 14 and / or the first contact surface 15 of the first lever 6. Furthermore, the second actuating element 28 has an actuating section (not shown) in the form of a recess for a screwdriver. The second actuating element 28 is, for example, formed as a toothed disc.

[0068] The lever arm 2 can be pivoted between the closed and open positions through a pivot angle α about the actuating axis S2. The furniture fitting 1 can, as shown in Figures 1 and 2, have an opening angle limiter 31 to allow the maximum pivot angle α to be set at least between a first angular position and a second angular position. For example, the maximum pivot angle α in the first angular position can be 115 to 120°, here for example 117°. In the second angular position, the maximum pivot angle α can be, for example, 85 to 95°, here for example 90°.

[0069] Several first recesses 32 are arranged at intervals along a first indication axis A32 on the base element 3, and several second recesses 33 are arranged at intervals along a second indication axis A33, which is arranged at an angle to the first indication axis A32. The first indication axis A32 corresponds to the first angular position, and the second indication axis A33 corresponds to the second angular position. The first and second recesses 32, 33 are arranged at equal intervals in the direction of the first and second indication axes A32, A33, respectively. The indication axes A32, A33 are arranged in a first surface 34 of the base element 3, which is arranged parallel to the contact surfaces 14, 16 and the bearing surfaces 15, 17 of the first and second levers 6, 7. The first and second recesses 32, 33 are formed as openings penetrating the base element 3.

[0070] In addition to the recesses 32, 33, indicator points (not shown), in particular force values, may be arranged for reading the set force. These indicator points may, for example, be arranged on a second surface 35 of the base element 3, facing away from the first surface 34.

[0071] The first lever 6 is rotatably attached to the base element 3 such that the longitudinal axis L of the threaded spindle 18 in the open position is arranged parallel and congruent with the first indication axis A32 or the second indication axis A33 of the recesses 32, 33, depending on the angular position.

[0072] To adjust the force acting on lever arm 2 towards reaching the open position, a user, for example a technician, can rotate the second adjusting element 28 around the axis of rotation D28 using a screwdriver. This rotates the first adjusting element 27 and the threaded spindle 18 connected to the first adjusting element 27 around the longitudinal axis L. The rotation of the threaded spindle 18 causes a linear adjustment of the threaded nut 19 along the longitudinal axis L, which in turn moves the guide element 12 with the joint 9 along the guide contour 11 via the coupling element 25. By changing the position of the guide element 12 and the joint 9, the moment acting on lever arm 2 is increased or decreased. The user can read the set force from the recesses 32, 33.

[0073] The levers 6 and 7 are preferably connected to each other by a pivot joint. The second lever 7 and the lever assembly 8 are each formed in multiple parts. For example, the second lever 7 can have at least two pivotally connected lever parts 36, and / or the lever assembly 8 can have a third and / or fourth lever 55, 56.

[0074] A first damping element 37 can be arranged on the third lever 55 to dampen the lever arm 2 in the direction of reaching the closed position. The damping element 37 can preferably be designed such that the third lever 8 is dampened by force and / or friction when the lever arm 2 is moved from the open position to the closed position. Alternatively or additionally, a second damping element 38 can be provided on the fourth lever 56.

[0075] The energy storage device 4 comprises a flat spring 5 made of a flat material, which is resiliently loaded between the base element 3 and the lever arm 2 in a plane of the flat material. The flat spring 5 is egg-shaped in the plane of the flat material and has a first leg 40 and a second leg 41, which transition into each other via a deflection section 42.

[0076] The first leg 40 is rotatably attached to the base element 3 at a first end 43, and the second leg 41 is connected to the second lever 7 at a pivot point 45 at a second end 44. The first end 43 has a convex, partially cylindrical outer surface 46, with which the flat spring 5 is held in contact with a complementary concave, partially cylindrical sliding surface 47 of the base element 3. The second leg 41 is movably guided on the base element 3.

[0077] Figures 5 and 6 show the levers of a second embodiment of the furniture fitting 1 shown in Figures 1 to 4. The same reference numerals are used for identical components or elements. The furniture fitting 1 shown in Figures 5 and 6 differs from the furniture fitting 1 shown in Figures 1 to 4 in the design of the force adjustment unit 10 and the two levers 6 and 7. For clarity, only the levers 6 and 7, the lever assembly 8, and the force adjustment unit 10 are shown. The first lever 6 has two first lever elements 57 arranged at a distance from each other along the pivot axis G9, each with a first outer surface 14 and a first contact surface 15. The second lever 7 has a second lever element 58 with a second outer surface 16 and a second contact surface 17.The first contact surfaces 15 of the first lever elements 57 can be arranged facing each other, such that the second contact surface 17 and the second outer surface 16 of the second lever element 58 each face one of the first contact surfaces 15 of the first lever elements 57. The first lever elements 57 can be identical. The guide element 12 can be designed as a pin element and guided in both guide contours 11.

[0078] The force adjustment unit 10 can have two coupling elements 25 arranged at a distance from each other on the first lever, which can each be arranged on the outer surface of the first lever elements 57 of the first lever 6.

[0079] Figure 7 shows a piece of furniture 48 with the furniture fitting 1 shown in Figures 1 to 4, here, for example, a flap fitting, with a flap 49 in the open position. The piece of furniture 48 comprises a side panel 50 and a top panel 51, which, together with a bottom panel 52, a back panel 53, and another side panel (not shown), define an interior space 39 of the piece of furniture 48. The interior space 39 of the piece of furniture 48 is accessible via an opening 54. The opening 54 is closed by the flap 49, which is pivotally connected to the top panel 51 of the piece of furniture 48 at one end by a hinge (not shown).

[0080] A fitting element 30 is permanently attached to the flap 49. The fitting element 30 serves as a connecting element between the flap 49 and the furniture fitting 1. The base element 3 can be connected to the side wall 50 via fastening elements (not shown).

[0081] All features described in connection with individual embodiments of the invention can be provided in different combinations for the furniture fitting 1 and the furniture 48 in order to achieve their advantageous effects, even if these have been described for different embodiments. For example, the furniture 48 has a furniture fitting 1 as shown in Figures 5 and 6. List of reference numerals

[0082] 1 furniture fitting

[0083] 2 Lever arm

[0084] 3 Basic element

[0085] 4 energy storage units

[0086] 5 flat springs

[0087] 6 first lever

[0088] 7 second lever

[0089] 8 Lever arrangement

[0090] 9 joint

[0091] 10 force adjustment unit

[0092] 11 Leadership contour

[0093] 12 Guide element

[0094] 13 Adjustment unit

[0095] 14 first outdoor area

[0096] 15 first contact surface

[0097] 16 second outdoor area

[0098] 17 second contact surface

[0099] 18 threaded spindle

[0100] 19 threaded nut

[0101] 20 first bearing element

[0102] 21 second bearing element (mount)

[0103] 22 first end section of the threaded spindle

[0104] 23 second end section of the threaded spindle

[0105] 24 Spindle mount

[0106] 25 coupling element

[0107] 26 actuators

[0108] 27 first adjusting element (gear) second adjusting element (toothed disc)

[0109] Front surface

[0110] Fitting element

[0111] Opening angle limiter, first recess, second recess, first surface of the base element, second surface of the base element

[0112] Lever part first damping element second damping element

[0113] Interior first leg second leg

[0114] Deflection section first end second end

[0115] pivot point convex semi-cylindrical outer surface concave semi-cylindrical sliding surface furniture

[0116] flap

[0117] side wall

[0118] topsoil

[0119] underbody

[0120] back panel

[0121] Opening of third lever, fourth lever, 57 first lever element

[0122] 58 second lever element a swivel angle

[0123] A32 first indication axis

[0124] A33 second indication axis

[0125] D28 pivot axis

[0126] G9 articulated axle

[0127] L Longitudinal axis of the threaded spindle

[0128] S2 actuator

Claims

AMENDED CLAIMS received by the International Bureau on 4 November 2025 (04.11.2025) Claims 1. Furniture fitting for connecting a movable furniture part (49) to a furniture carcass, comprising a lever arm (2) pivotably attached to a base element (3) about an adjusting axis (S2) between an open position and a closed position, a force storage device (4) for applying force to the lever arm (2) in the direction of assuming the open position, at least two levers (6, 7) pivotably connected to each other at a joint (9), wherein one of the levers (6, 7) is connected to the force storage device (4) and another of the levers (6, 7) is connected to the lever arm (2), a force adjustment unit (10) arranged on a first lever (6) of the at least two levers (6, 7) for adjusting the force acting on the lever arm (2), wherein the force adjustment unit (10) has a guide contour (11) and a guide element (12) adjustable along the guide contour (11).wherein the joint (9) is adjustable along the guide contour (11) with the guide element (12), wherein the force adjustment unit (10) has an adjustment unit (13) arranged at a distance from the guide contour (11) and connected to the guide element (12) for moving the joint (9) along the guide contour (11), wherein the adjustment unit (13) is connected to the guide element (12) via a coupling element (25), AMENDED SHEET (ARTICLE 19) element (12) is connected, wherein the adjusting unit (13) has a threaded spindle (18) rotatably mounted on the first lever (6) about a longitudinal axis (L) and a threaded nut (19) arranged on the threaded spindle (18) and connected to the coupling element (25), characterized in that the guide contour (11) is formed such that adjusting the threaded nut (19) along the threaded spindle (18) causes a substantially linear change in the force acting on the lever arm (2) when adjusting from the closed position to the open position.

2. Furniture fitting according to claim 1, characterized in that the coupling element (25) is formed such that adjusting the threaded nut (19) along the threaded spindle (18) causes a movement of the guide element (12) with the joint (9) along the guide contour (11).

3. Furniture fitting according to claim 1 or 2, characterized in that the guide contour (11 ) is formed at least partially curved in a plane perpendicular to a joint axis (G9) of the joint (9).

4. Furniture fitting according to one of claims 1 to 3, characterized in that the force adjustment unit (10) has an adjusting unit (26) arranged on the first lever (6) for rotating the threaded spindle (18) about the longitudinal axis (L).

5. Furniture fitting according to claim 4, characterized in that the actuating unit (26) has two engaging actuating elements (27, 28), wherein a first actuating element (27) is connected to an end section (22) of the threaded spindle (18) and a second actuating element (28) is rotatable AMENDED SHEET (ARTICLE 19) is mounted on the first lever (6).

6. Furniture fitting according to one of claims 1 to 5, characterized by several recesses (32, 33) arranged at intervals from one another along an indication axis (A32, A33) on the base element (3) for indicating the set force.

7. Furniture fitting according to claim 6, characterized in that the first lever (6) is rotatably attached to the base element (3) such that the longitudinal axis (L) of the threaded spindle (19) is arranged parallel and congruent with the indication axis (A32, A33) of the recesses (32, 33) in the open position.

8. Furniture fitting according to one of claims 1 to 7, characterized in that the first lever (6) or a second lever (7) can be connected to the movable furniture part (49) via a lever arrangement (8).

9. Furniture fitting according to claim 8, characterized in that the second lever (7) and / or the lever arrangement (8) are each formed in multiple parts, wherein at least one part (36) of the second lever (7) or a part (36) of the lever arrangement (8) is rotatably attached to the base element (3).

10. Furniture fitting according to one of claims 1 to 9, characterized in that the force storage device (4) comprises a flat spring (5) which is made of a flat material, and that the flat spring (5) is resiliently loaded in a plane of the flat material between the base element (3) and the lever arm (2). AMENDED SHEET (ARTICLE 19) 11. Furniture fitting according to claim 10, characterized in that the flat spring (5) is U-shaped in the plane of the flat material and forms a first leg (40) and a second leg (41) which merge into each other via a deflection section (42), wherein the first leg (40) is rotatably attached to the base element (3) at a first end (43) and the second leg (41) is connected to the second lever (7) at a pivot point (45) at a second end (44).

12. Furniture with a movable furniture part (49) and a furniture fitting (1) articulated to the furniture part (49) according to one of claims 1 to 11. AMENDED SHEET (ARTICLE 19)

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