Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
  • A47B88/40—Sliding drawers; Slides or guides therefor
  • A47B88/453—Actuated drawers
  • A47B88/457—Actuated drawers operated by electrically-powered actuation means
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
  • A47B88/40—Sliding drawers; Slides or guides therefor
  • A47B88/453—Actuated drawers
  • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
  • A47B88/463—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-opening
• • 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
  • E05Y2201/404—Function thereof
  • E05Y2201/422—Function thereof for opening
  • E05Y2201/426—Function thereof for opening for the initial opening movement
• • 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

• the present invention relates to a furniture drive for ejecting a movable furniture part from a closed end position relative to a furniture body, comprising:
• the invention relates to a piece of furniture with a movable furniture part and with a furniture drive of the kind to be described.
• General furniture drives for ejecting movably mounted furniture parts are described, for example, in WO 2004/101919 A1, in EP 2 380 459 A1 and in WO 201 1/130758 A1.
• AT 504 838 B1 a furniture drive with a motor-driven ejection lever has become known, which rests loosely in the closed end position of the movable furniture part on a stop of a plunger.
• the plunger forms part of a power transmission device, wherein the force exerted during the ejection process can be transmitted to the movable furniture part via the intermediate space formed between the ejection lever and the movable furniture part via the plunger.
• Object of the present invention is to provide a furniture drive of the type mentioned above with a simplified and more compact design. This is achieved by the features of claim 1. Further embodiments of the invention are specified in the dependent subclaims.
• the furniture drive has a reduction mechanism, which converts a pivoting movement of the ejection lever into a linear movement of the plunger, wherein the reduction mechanism has at least one angular lever rotatably mounted about an axis of rotation with two lever arms, wherein a first lever arm of the angle lever with the Ejection lever and a second lever arm of the angle lever cooperates with the linearly movable plunger and wherein the axis of rotation of the angle lever and the pivot axis of the ejection lever are arranged stationary relative to each other.
• the reduction ratio can be variably adjusted by the respective choice of the geometry of the angle lever, on the other hand can be brought about the angle lever a force diversion, so that an angular ejection of the plunger relative to the (main) ejection direction of the ejection lever is possible.
• the furniture drive can be formed with a more compact design.
• the angle lever and / or the ejection lever may have at least one convexly curved portion for mutual engagement.
• the angle lever By the angle lever, it is possible that when ejecting the movable furniture part from the closed end position (ie when the electric drive unit only slowly anatom) there is a high power transmission at low Wegüber GmbH.
• a particularly large torque is available, so that even heavily loaded drawers, flaps or Doors can be easily ejected from the closed end position.
• the gear ratio can then be reduced starting from the closed end position of the movable furniture part over a predetermined rotation angle range of the ejection lever, so that the power transmission is reduced and the path ratio is increased.
• the two lever arms of the angle lever enclose an acute angle relative to one another, wherein it is preferably provided that the angle which the two lever arms enclose relative to one another is constant in all operating positions of the angle lever.
• the first and the second lever arm of the angle lever are formed together in one piece.
• the angle which the first lever arm and the second lever arm of the angle lever include relative to each other, by an adjusting device - preferably continuously - is adjustable.
• an adjusting device - preferably continuously - is adjustable.
• a selective adjustment of the position of the plunger can be brought about.
• the included angle between the two lever arms of the angle lever is fixed, so as to transmit the required force to the movable furniture part.
• FIG. 1 shows a piece of furniture with a furniture body and a furniture part movably mounted relative thereto in a perspective view
• FIGS. 2a, 2b show the furniture drive according to FIG. 1 in two different perspective views
• Fig. 4a-4d temporal sequences of the ejection process of the plunger, starting from the closed end position in perspective views.
• Fig. 1 shows a furniture 1 with a furniture body 2 and a movable relative to this furniture part 3 in a perspective view.
• the movable furniture part 3 is formed as a door which is pivotally mounted about a perpendicular axis relative to the furniture body 2.
• a furniture drive 4 is arranged with a pivotally mounted ejection lever 12, wherein the movable furniture part 3 is ejected via a linearly movable plunger 6 from the closed end position into an open position.
• the movable furniture part 3 projects beyond the cabinet cover 7 of the furniture body 2, so that the rear side of the movable furniture part 3 forms a stop surface for the extendable plunger 6.
• Fig. 2a shows a view of the arranged on the furniture body 2 furniture drive 4 of FIG. 1 in an enlarged view.
• the furniture drive 4 is mounted on a base plate 8 to be fastened to the furniture body 2 and comprises a housing 9 in which an electric drive unit 10 with a gear for electromotive driving of the ejection lever 12 is arranged.
• the ejection lever 12 is rotatably mounted relative to the housing 9 about a, preferably in mounting position perpendicular, pivot axis 1 1.
• the triggering of the electric drive unit 10 can be done by sensors that detect a manually generated by a user (closing) movement of the movable furniture part 3.
• a simple releasability of the furniture drive 4 is given by a touch-latch functionality.
• a sensor preferably a rotary potentiometer, is provided for detecting the angular position of the ejection lever 12, wherein the signals of the sensor of a control or regulating unit of the furniture drive 4 can be supplied and wherein the electric drive unit 10 of this control or regulating unit Is controllable or controllable.
• the ejection lever 12 has a disposed between the pivot axis 1 1 and the free end of the lever 13 of the ejection lever 12 ejection surface 14, which cooperates with a first lever arm 18 of an angle lever 15.
• the angle lever 15 has a second lever arm 19 which cooperates with the linearly movable plunger 6 via a - preferably curved - push lever 20 (FIG. 2 b).
• the angle lever 15 is mounted about an axis of rotation 16 which is arranged stationary with respect to the pivot axis 1 1 of the ejection lever 12.
• the angle lever 15 forms part of a reduction mechanism 5, which converts a pivoting movement of the ejection lever 12 into a linear movement of the plunger 6.
• Fig. 2b shows the furniture drive 4 in a further perspective view.
• the ejection lever 12 has a disposed between the rotation axis 1 1 and the free end of the lever 13 ejection surface 14, which cooperates with the first lever arm 18 of the angle lever 15.
• the first lever arm 18 and the second lever arm 19 of the angle lever 15 include an acute angle relative to each other.
• the angle lever 15 is pivotally mounted on a pivot bearing 21 about a rotation axis 16, wherein the rotation axis 16 is arranged parallel and fixed with respect to the pivot axis 1 1 of the ejection lever 12. The position of the ejection lever 12 according to FIG.
• Fig. 3 shows the furniture drive 4 in an exploded view.
• a guide device 23 for guiding the slider 22 is to be fastened.
• a holder 24 for receiving a damping device 25 is mounted, by which a closing movement of the movable furniture part 3 is damped.
• the damping device 25 is designed as a, preferably hydraulic, piston-cylinder unit.
• the housing 9 of the electric drive unit 10 is detachably fastened to a receiving profile 23, which is to be screwed to a strip 24 extending vertically in the mounting position, via a snap connection.
• the furniture drive 4 comprises a about a pivot axis 1 1 pivotally mounted ejection lever 12 with an ejection surface 14 which cooperates in the mounting position with the first lever arm 18 of the angle lever 15.
• a spring device 28 which comprises at least one tension spring designed as a helical spring, is anchored with a first end region to the slider 22 and with a second end region to a spring base 29 which is preferably adjustable relative to the base plate 8.
• a first part 31 of a locking device 30 is arranged, held by the movable furniture part 3 in the full closed position and / or can be moved towards the end of the closing movement in the full closed position.
• a part 31 is arranged at the free end of the plunger 6, which cooperates with a corresponding part which is arranged or formed on the movable furniture part 3, magnetically.
• Fig. 4a-4d show the ejection process of the plunger 6 in time sequences.
• the closed position of the plunger 6 is shown, which also corresponds to the closed end position of the movable furniture part 3.
• the free end of the first lever arm 18 of the angle lever 15 is loosely adjacent to the ejection surface 14 of the ejection lever 12 adjacent to the rotation axis 1 1 of the ejection lever 12.
• the free end of the second lever arm 19 of the angle lever 15 acts - directly or indirectly - together with the plunger 6.
• Fig. 4b shows a further extended position of the plunger 6.
• the driven by the electric drive unit 10 ejection lever 12 has been rotated about the pivot axis 1 1, whereby the angle lever 15 is pivotable about the axis of rotation 16.
• Fig. 4c shows a further extended position of the plunger 6, wherein the damping device 25 is reset in the form of the linear damper by the force of a (not shown) return spring in a ready position for the next damping stroke.
• the movement of the plunger 6 is now carried out at a lower power transmission, which decreases in a further ejection movement of the ejection lever 12.
• the transmitted to the plunger 6 force decreases so, however, a more rapid extension movement of the plunger 6 is brought about.
• Fig. 4d shows the fully extended position of the plunger 6.
• a user can solve the movable furniture part 3 by engaging behind from the magnetic coupling of the part 31 and move further in the direction of the open position. However, if the magnetic coupling between the part 31 of the locking device 30 and the movable furniture part 3 is not canceled by the user, the movable furniture part 3 is retracted after a predetermined period of time - while maintaining the magnetic coupling. This is brought about by a control or regulation unit of the furniture drive 4, which resets the ejection lever 12, so that by the force of the spring device 28 a return of the plunger 6 and thus a recovery of the movable furniture part 3 (which is magnetically coupled to the plunger 6 ) in the closed end position is possible.
• the movable furniture part 3 On the movable furniture part 3 is of course a corresponding part of the locking device 30 to arrange or form, so that between the part 31 and the movable furniture part 3, a magnetic attraction can be produced.
• the movable furniture part 3 it is possible, for example, to form the movable furniture part 3 at least partially metallic, wherein the magnetically formed part 22 -. optionally by interposing a plastic pad for noise reduction - directly on a metallic portion of the movable furniture part 3 is effective.
• a particular advantage of the invention is apparent, namely that a force deflection and thus an angular ejection of the plunger 6 with respect to the ejection direction of the ejection lever 12 is possible by the construction shown.
• FIG. 4d namely, the direction 32 of the linear movement of the plunger 6 can be seen, which runs essentially parallel to a longitudinal direction (L) of the housing 9 of the furniture drive 4.
• the furniture drive 4 with the angle lever 15 can thus provide very high ejection forces, whereby this particular is suitable for ejecting refrigerator doors or freezer flaps. Due to the prevailing negative pressure in refrigerators or freezers, these are often difficult to open, which is further complicated by the arrangement of a magnetic seal (which seals the refrigerating compartment).
• the furniture drive 4 according to the invention can remedy this situation, wherein it can be provided that the furniture drive 4 is combined to form a common modular unit and that - apart from any electrical cables - only the plunger 6 protrudes from this common unit.

Landscapes

• Closing And Opening Devices For Wings, And Checks For Wings (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Cabinets, Racks, Or The Like Of Rigid Construction (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51945649

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Citations (6)

Family Cites Families (5)

• 2013
  • 2013-11-14 AT ATA880/2013A patent/AT514944B1/de not_active IP Right Cessation
• 2014
  • 2014-09-29 WO PCT/AT2014/000175 patent/WO2015070264A1/de active Application Filing
  • 2014-09-29 EP EP14801906.0A patent/EP3068266B1/de active Active
  • 2014-09-29 CN CN201480062105.8A patent/CN105744858B/zh active Active
  • 2014-09-29 ES ES14801906.0T patent/ES2650550T3/es active Active
  • 2014-09-29 JP JP2016529472A patent/JP6258489B2/ja active Active

Patent Citations (6)

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