Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D3/00—Hinges with pins
  • E05D3/06—Hinges with pins with two or more pins
  • E05D3/16—Hinges with pins with two or more pins with seven parallel pins and four arms
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
  • E05D15/401—Suspension arrangements for wings supported on arms movable in vertical planes specially adapted for overhead wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
  • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
  • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
  • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
  • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
  • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
  • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
  • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
  • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
  • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
  • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
  • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
  • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2201/00—Constructional elements; Accessories therefor
  • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
  • E05Y2201/214—Disengaging means
  • E05Y2201/216—Clutches
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2201/00—Constructional elements; Accessories therefor
  • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
  • E05Y2201/499—Spring tensioners; Tension sensors
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2201/00—Constructional elements; Accessories therefor
  • E05Y2201/60—Suspension or transmission members; Accessories therefor
  • E05Y2201/622—Suspension or transmission members elements
  • E05Y2201/624—Arms
  • E05Y2201/626—Levers
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
  • E05Y2600/10—Adjustable
  • E05Y2600/12—Adjustable by manual operation
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
  • E05Y2800/20—Combinations of elements
  • E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
  • E05Y2800/20—Combinations of elements
  • E05Y2800/242—Combinations of elements arranged in parallel relationship
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
  • E05Y2800/26—Form or shape
  • E05Y2800/266—Form or shape curved
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
  • E05Y2800/34—Form stability
  • E05Y2800/342—Deformable
  • E05Y2800/344—Deformable elastically
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

• Furniture drive for moving a movably mounted relative to a furniture body
• the present invention relates to a furniture drive for moving a furniture part that is movably mounted relative to a furniture body, comprising:
• an actuating arm arrangement arranged on the carrier with at least one movably mounted actuating arm for moving the movable furniture part
• a spring device for applying force to the actuating arm arrangement, the spring device being connected to the actuating arm arrangement via at least one point of application,
• An adjusting device with at least one rotatably mounted adjusting element, wherein a relative position of the at least one point of application to the actuating arm arrangement can be adjusted by rotating the adjusting element.
• the invention relates to a piece of furniture with a furniture body, a furniture part mounted so that it can move relative to the furniture body, and with a furniture drive of the type to be described for moving the movable furniture part.
• the carrier of such furniture drives is usually fastened in or on a side wall of the furniture body, the actuating arm arrangement of the furniture drive being prestressed by at least one spring device and being connected to the movable furniture part in an assembled state.
• EP 3 708 753 A1 shows a non-generic furniture drive for moving a furniture flap, with a helical spring being provided to balance the weight of the furniture flap.
• the helical spring can be compressed differently, so that the force of the helical spring can be adapted to different weights of the furniture flaps.
• the furniture drive has a torque limiting device, so that a jamming of the abutment is prevented from reaching an end stop.
• the abutment can be adjusted by rotating a drive element using a tool.
• the torque limiting device limits the torque in a first direction of rotation of the drive element, so that the abutment does not jam with the end stop. In contrast, in a second direction of rotation of the drive element, the torque is completely transmitted.
• CN 106175199 A shows a furniture drive, in which the force of the spring device can be transmitted via a double-armed reversing lever to the actuating arm for moving a furniture flap.
• WO 2018/192819 A1 discloses a furniture drive with the features of the preamble.
• a rotatable tool holder is provided on a front end region of the housing of the furniture drive, with a spindle nut being movable along the spindle by rotating the tool holder using a tool.
• a spring assembly is supported on the spindle nut, with a force of the spring assembly acting on the actuating arm arrangement being variable by the adjustable mounting of the spindle nut along the spindle.
• the setting device of a furniture drive for setting a force of the spring device acting on the actuating arm arrangement is usually actuated by means of a turning tool, for example a screwdriver.
• a turning tool for example a screwdriver.
• the object of the present invention is to specify a furniture drive of the type mentioned at the outset while avoiding the disadvantages discussed above.
• the furniture drive has at least one overload protection which, when the adjusting element is rotated with a torque that is below a predetermined torque, couples the adjusting element to the transmission mechanism and, when the adjusting element is rotated with a torque that is above a predetermined torque is decoupled, the adjustment from the transmission mechanism.
• the proposed overload protection allows damage-free operation of the setting device, particularly in the event of incorrect operation by a user. If a predetermined torque exerted on the setting element is exceeded, the setting element and the point of application of the spring device are decoupled from one another by the overload protection.
• - has at least one spring element, preferably a compression spring, wherein a rotatably mounted shaft and the adjusting element can be pressed against one another by a force of the spring element, and/or
• - has at least one toothing arranged on the adjusting element, preferably a face toothing, and/or
• the spring element which is separate from the spring device, for applying force to the at least one shaft, enables a defined triggering force and thus a defined switching behavior of the overload protection device.
• 1a, 1b show a piece of furniture with a movable furniture part in a perspective view and in an exploded view
• 3a, 3b show the furniture drive in a closed position and in an open position
• Fig. 4a, 4b show the furniture drive in a perspective view and an enlarged detailed view of it
• 5a-5d show the adjustment device acting on the point of attack in different views
• 6a, 6b show the adjusting device acting on the point of attack in a slightly modified embodiment in a perspective view and an enlarged detail view in relation thereto.
• FIG. 1 a shows a perspective view of a piece of furniture 1 , which has a furniture body 2 , a furniture part 3 that is movably mounted relative to the furniture body 2 , and at least one furniture drive 4 for moving the movable furniture part 3 .
• the piece of furniture 1 has furniture panels 6 in the form of side walls, a top panel 7 and a bottom panel 8 .
• the furniture part 3 is designed as a furniture flap 3a that can be raised relative to the furniture body 2 .
• the furniture drive 4 is at least partially, preferably essentially completely, integrated in a furniture panel 6 of the furniture carcass 2 .
• the furniture drive 4 can also be arranged outside of a wall thickness of the furniture panel 6 .
• the movable furniture part 3 is movably mounted between a closed position covering the furniture body 2 and an open position raised relative to the furniture body 2 .
• the furniture drive 4 in a horizontally running furniture panel, for example in the top panel 7 , in the bottom panel 8 and/or in a shelf arranged between the top panel 7 and the bottom panel 8 .
• the movable furniture part 3 is pivoted relative to the furniture body 2 about an axis that runs vertically in the installed position.
• the furniture drive 4 has an actuating arm arrangement 5 for moving the movable furniture part 3 and at least one spring device 10 (FIG. 1 b) for applying force to the actuating arm arrangement 5 .
• 1 b shows the piece of furniture 1 in an exploded view, two furniture drives 4 , preferably of identical design, being provided for moving the movable furniture part 3 .
• the furniture drives 4 each have a carrier 9 to be fastened to the furniture carcass 2 .
• the carrier 9 is accommodated in an assembled state at least in regions, preferably essentially completely, within a recess 11 in the side walls designed as furniture panels 6 .
• the carrier 9 can terminate essentially flush with an end face 6a of the furniture panel 6 .
• the recess 11 is designed, for example, as a blind hole, with the support 9 being able to be pushed into the pocket-shaped recess 11 of the furniture panel 6 during assembly from the front (i.e. starting from the narrow end face 6a of the furniture panel 6).
• a cover 12 is provided on the front end region of the carrier 9, with at least one movably mounted actuating arm 5a, 5b, 5c, 5d, 5e (FIG. 2a) of the actuating arm arrangement 5 being able to be guided through the cover 12 in a relative position.
• the 2a shows the furniture drive 4 in a perspective view, the carrier 9 having at least one flat housing wall 9a that can be placed against the furniture body 2.
• a pivotable bearing part 14 is provided on the housing wall 9a and is pivotably mounted about a hinge axis 13 that is stationary on the carrier 9 .
• the spring device 10 can therefore be supported with a first end area on the stationary joint axis 13 .
• the spring device 10 can comprise at least one helical spring, preferably at least one compression spring, or alternatively a gas pressure spring.
• the furniture drive 4 has a transmission mechanism 35 for transmitting a force from the spring device 10 to the actuating arm arrangement 5 .
• a second end region of the spring device 10 acts on a pressure piece 20 which is connected in an articulated manner via an adjustable contact point 18 to an intermediate lever 16 which can be pivoted about a preferably stationary articulation axis 15 .
• a force of the spring device 10 on the actuating arm arrangement 5 can be adjusted by means of an adjusting device 19 .
• the adjusting device 19 comprises an adjusting element 19a that can be rotated about an axis of rotation (R), wherein a position of the point of application 18 of the spring device 10 relative to the actuating arm arrangement 5, preferably along a threaded section 17, can be adjusted by rotating the adjusting element 19a about the axis of rotation (R).
• the threaded portion 17 has a longitudinal direction (L).
• the angle which the longitudinal direction (L) of the threaded section 17 and the axis of rotation (R) of the adjustment element 19a enclose to one another can be changed when the actuating arm arrangement 5 moves.
• a rotational movement of the adjusting element 19a can be transmitted to the threaded section 17 by means of an angularly movable coupling device 25 , so that the threaded section 17 is set into a rotational movement and the point of application 18 is thereby moved along the threaded section 17 .
• the angularly movable coupling device 25 can have at least one elastic member, preferably a bellows, a molded rubber element, a coil spring coupling, and/or at least one gear, preferably a bevel gear, and/or a joint, preferably a universal joint or cardan joint.
• At least one shaft 28 that can be driven by the adjusting element 19a is provided for driving the threaded section 17, the at least one shaft 28 is mounted displaceably relative to the carrier 9 in or along a guide 30, preferably an elongated hole. In this way, compensating movements of components of the furniture drive 4, which are caused by the angularly movable coupling device 25, can be at least partially compensated.
• the shaft 28 is arranged in or on a bearing device 29 , the guide 30 being arranged on the bearing device 29 and a pin 32 stationarily mounted on the carrier 9 engaging in the guide 30 of the bearing device 29 .
• the bearing device 29 can be moved relative to the fixed pin 32 .
• the actuating arm arrangement 5 comprises at least one, preferably several, actuating arm(s) 5a, 5b, 5c, 5d, 5e for moving the movable furniture part 3.
• a fitting part 21 is to be fastened to the movable furniture part 3, with the fitting part 21 having at least one or more fastening points 22 and can be releasably locked with an actuating arm 5e of the actuating arm arrangement 5.
• Fig. 2a the locked state between the actuating arm 5e and the fitting part 21 is shown.
• a cover 12 which has at least one laterally projecting flange 12a.
• the flange 12a is essentially ring-shaped and forms a depth stop for the carrier 9 that can be placed on an end face 6a of the furniture panel 6 .
• FIG. 2b shows the furniture drive 4 according to FIG. 2a, the carrier 9 being closed by a second housing wall 9b.
• the first housing wall 9a and the second housing wall 9b are each flat and designed to rest on a furniture body 2 and together form a substantially cuboid support 9 .
• the housing walls 9a, 9b are spaced parallel to one another, with a front opening 23 being formed between the housing walls 9a, 9b.
• the cover 12 is arranged in the area of this opening 23 and allows passage of a tool for actuating the adjustment device 19.
• Fig. 3a shows the furniture drive 4 with the carrier 9 in a side view.
• the threaded section 17 is arranged on an intermediate lever 16 which is pivotably mounted about a hinge axis 15 arranged stationary on the carrier 9 .
• the spring device 10 exerts a minimal torque on the actuating arm arrangement 5 because the contact point 18 of the spring device 10 is in an area adjacent to the joint axis 15 of the intermediate lever 16 .
• An imaginary connecting line between the joint axis 15 of the intermediate lever 16 and the point of application 18 of the spring device 10 forms a relatively short lever arm, as a result of which a minimal torque acts on the actuating arm arrangement 5 .
• the axis of rotation (R) of the setting element 19a of the setting device 19 and the longitudinal direction (L) of the threaded section 17 enclose an angle to one another which can be changed when the actuating arm arrangement 5 moves.
• One advantage of this construction can be seen clearly from Fig. 3a, since in the shown closed position of the furniture drive 4 - due to the angularly movable arrangement of the axis of rotation (R) and the longitudinal direction (L) - the actuating arms 5a-5e of the actuating arm arrangement 5 together with the Spring device 10 and the adjustment device 19 take a very compact position to each other.
• the adjusting element 19a and the rotatable threaded section 17 are thus angularly movable relative to one another when the actuating arm assembly 5 moves, so that the adjusting device 19 for adjusting a force of the spring device 10 and the actuating arm assembly 5 can assume different positions relative to one another.
• the components of the furniture drive 4 can be nested in one another and can therefore be arranged closer to one another. In this way, the furniture drive 4 can be built more compactly, the adjustment path of the spring device 10 on the threaded section 17 can be increased and higher power ranges of the furniture drive 4 can be covered.
• the carrier 9 can be essentially rectangular, it being preferably provided that the ratio of a length (L1) of the carrier 9 to a height (H1) of the carrier 9 is greater than 1 to 0.7, preferably greater than 1 to 0. 5, is.
• a reduced height (H1) of the carrier 9 can be achieved by such a dimensioning. This also allows the height of the recess 11 (Fig. 1b) of Furniture panels 6 are small in size, with the production cost of the recess 11 and a weakening of the furniture panel 6 are low.
• FIG. 3b shows the furniture drive 4 according to FIG. 3a with a minimum force setting of the spring device 10, the actuating arm arrangement 5 with the actuating arms 5a-5e being in an open position. It can be seen that the angle between the axis of rotation (R) of the adjusting element 9 and the longitudinal direction (L) of the threaded section 17 is reduced relative to the closed position shown in FIG. 3a.
• the actuating arm arrangement 5 has a first actuating arm 5a pivotable about a first joint axis 26 and at least one second actuating arm 5b pivotable about a second joint axis 27 .
• the first hinge axis 26 and the second hinge axis 27 are spaced from each other in a longitudinal direction (L2) of the carrier 9 , the second hinge axis 27 being arranged in a front region of the carrier 9 with respect to the first hinge axis 26 .
• the intermediate lever 16 is connected directly to the second (front) actuating arm 5b via a push lever 24, preferably designed in an arc shape.
• the first actuating arm 5a is therefore not directly connected to the thrust lever 24 via a joint axis, but instead is guided within the thrust lever 24 in a displaceable manner. This is clearly evident from FIG. 2a. In this way, an improved and direct introduction of force from the spring device 10 into the actuating arm arrangement 5 is made possible.
• FIG. 4a shows the furniture drive 4 in a perspective view, with the furniture drive 4 including an overload protection device 33 for limiting a maximum torque between the setting element 19a of the setting device 19 and the contact point 19 of the spring device 10.
• the overload protection 33 is configured such that the overload protection 33 couples the setting element 19a to the transmission mechanism 35 when the setting element 19a is rotated with a torque that is below a predetermined torque and when the setting element is rotated 19a with a torque that is above a predetermined torque, the adjusting element 19a is decoupled from the transmission mechanism 35.
• the overload protection device 33 has at least one spring element 34, for example in the form of a compression spring.
• the shaft 28 can be pressed against the setting element 19a of the setting device 19 by a force of the spring element 34 . It is preferably provided that the shaft 28 can be pressed in an axial direction of the shaft 28 against the setting element 19a of the setting device 19 by a force of the spring element 34 .
• the adjusting element 19a and the shaft 28 can be rotatably coupled to one another via cooperating splines 37a, 37b (FIGS. 5a-5d).
• the setting element 19a rotates with a torque that is below a predetermined torque
• the setting element 19a is coupled to the shaft 28 .
• the setting element 19a rotates with a torque that is above a predetermined torque
• the setting element 19a is decoupled from the transmission mechanism 35 . If a torque exerted on the setting element 19a is exceeded, the spring element 34 is compressed, with the setting element 19a and the shaft 28 being able to be decoupled from one another.
• FIG. 4b shows the area framed in FIG. 4a in an enlarged view.
• the carrier 9 of the furniture drive 4 can be clamped in place within the recess 11 (FIG. 1b) of the furniture panel 6 by a fastening device 31 with at least one rotatable clamping element 31a.
• Fig. 5a shows a perspective view of the adjustment device 19 for adjusting a position of the point of application 18 of the spring device 10.
• the rotatable adjustment element 19a can have a receiving device 39 (Fig. 6b) for a tool, preferably a screwdriver, with the point of application 18 being replaced by a rotation of Recording device 39 by means of the tool, preferably along the threaded portion 17, is adjustable.
• the adjusting element 19a and/or the shaft 28 are rotatably mounted on a bearing device 29 .
• the bearing device 29 has the guide 30 already described, in which the pin 32 of the carrier 9 is guided with play.
• the overload protection device 33 it can be provided that the overload protection device 33
• At least one spring element 34 preferably a compression spring, wherein a rotatably mounted shaft 28 and the adjusting element 19a can be pressed against one another by a force of the spring element 34, and/or
• the adjusting element 19a has at least one rotatably mounted shaft 28 that can be driven by the adjusting element 19a, the adjusting element 19a being coupled to the shaft 28 when the adjusting element 19a is rotated with a torque that is below a predetermined torque, and when the adjusting element 19a is rotated with a Torque that is above a predetermined torque is decoupled from the shaft 28, and / or
• the shaft 28 can, for example, be coupled to the point of application 18 via interacting teeth 38a, 38b, preferably via a bevel gear and preferably via a threaded section 17.
• Fig. 5b shows the coupled state between the adjusting element 19a and the shaft 28, the cooperating teeth 37a, 37b being in engagement with one another. This is the case when the adjusting element 19a is rotated with a torque that is below a predetermined torque.
• 5c shows the case of overload when the setting element 19a is rotated with a torque that is above a predetermined torque. If a critical torque is exceeded, the adjusting element 19a and the shaft 28 are rotated relative to one another, the adjusting element 19a and the shaft 28 being spaced apart axially by the cooperating teeth 37a, 37b and the spring element 34 being compressed. In this way, the shaft 28 can be decoupled from a rotary movement of the adjustment element 19a.
• FIG. 5d shows the circled area in FIG. 5c in an enlarged view, with the toothing 37a of the adjustment element 19a and the toothing 37b of the shaft 28 being disengaged from one another. This situation corresponds to the case of overload, with the shaft 28 being decoupled from a rotary movement of the setting element 19a.
• FIG. 6a shows the adjusting device 19 acting on the point of contact 18 in a slightly modified embodiment.
• the adjusting member 19a and the shaft 28 are rotatably accommodated within the bearing device 29 and pressed against each other by a force of the spring member 34 in the form of a compression spring.
• the spring element 34 forms an opening 34a, with the spring element 34 and the adjusting element 19a being arranged relative to one another in such a way that the adjusting element 19a is accessible via the opening 34a of the spring element 34.
• the toothings 37a, 37b are released after a force of the spring element has been overcome 34 lifted from each other, wherein the spring element 34 is compressed.
• the adjusting element 19a is rotated again with a torque which is below a predetermined torque, the adjusting element 19a is again rotatably coupled to the shaft 28 by the force of the spring element 34 .
• FIG. 6b shows the area framed in FIG. 6a in an enlarged view.
• the setting element 19a of the setting device 19 has a receiving device 39 for a tool, preferably a screwdriver or a cordless screwdriver.
• the receiving device 39 can, for example, have a cross-slot shape (e.g. a Pozidriv profile), a square profile, a hexagonal profile or a hexagonal profile (e.g. a Torx profile), with a reliable form-fitting connection for transmitting a torque between the tool and the setting element 19a can be produced.
• a cross-slot shape e.g. a Pozidriv profile
• a square profile e.g. a square profile
• a hexagonal profile or a hexagonal profile e.g. a Torx profile
• the furniture drive 4 can have at least one damping device, for example a hydraulic piston-cylinder unit, for damping a movement of the actuating arm arrangement 5 . In this way, a movement of the movable furniture part 3 into the closed and/or open end position can be damped.
• a damping device for example a hydraulic piston-cylinder unit

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• Engineering & Computer Science (AREA)
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• Closing And Opening Devices For Wings, And Checks For Wings (AREA)

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• 2020
  • 2020-11-12 AT ATA50979/2020A patent/AT524391A1/de unknown
• 2021
  • 2021-11-05 WO PCT/AT2021/060410 patent/WO2022099334A1/de active Application Filing
  • 2021-11-05 JP JP2023528249A patent/JP2023549489A/ja active Pending
  • 2021-11-05 CN CN202180076336.4A patent/CN116490666A/zh active Pending
  • 2021-11-05 EP EP21806950.8A patent/EP4244454A1/de active Pending
  • 2021-11-05 KR KR1020237016515A patent/KR20230088457A/ko unknown
• 2023
  • 2023-05-09 US US18/144,987 patent/US20230272655A1/en active Pending

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