• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Furniture drive (4) for ejecting a movable furniture part (3) from a closed end position relative to a furniture body (2), comprising: - a housing (9); - An in or on the housing (9) arranged electric drive unit (1 0); - A by the electric drive unit (1 0) drivable ejection lever (12) which is rotatably mounted about a pivot axis (11) relative to the housing (9); - A by the ejection lever (12) drivable, linearly movable plunger (6) for ejecting the movable furniture part (3); wherein the furniture drive (4) has a reduction mechanism (5) which converts a pivoting movement of the ejection lever (12) into a linear movement of the plunger (6), wherein the reduction mechanism (5) comprises at least one angular lever (15) rotatably mounted about an axis of rotation (16) ) with two lever arms (18, 19), wherein a first lever arm (18) of the angle lever (15) with the ejection lever (12) and a second lever arm (19) of the angle lever (15) cooperates with the linearly movable plunger (6) and wherein the rotation axis (16) of the angle lever (15) and the pivot axis (11) of the ejection lever (12) are arranged stationary relative to each other.
    公开号:AT514944A4
    申请号:T880/2013
    申请日:2013-11-14
    公开日:2015-05-15
    发明作者:
    申请人:Blum Gmbh Julius；
    IPC主号:
    专利说明:

    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: a housing; - An arranged in or on the housing electric drive unit; - A driven by the electric drive unit ejection lever, which is mounted rotatably about a pivot axis relative to the housing; - A driven by the ejection lever, linearly movable plunger for ejecting the movable furniture part.
    Furthermore, the invention relates to a piece of furniture with a movable furniture part, which is drivable by a furniture drive of the type to be described.
    In AT 504 838 B1, a furniture drive with a motor-driven ejection lever has become known, which in the closed end position of the movable furniture part bears loosely against a stop of a plunger. The plunger forms part of a power transmission device, wherein via the plunger the force exerted during the ejection process can be transmitted to the movable furniture part via a space formed between the ejection lever and the movable furniture part. In this way, also movable furniture parts are ejected from the closed end position, which protrude only to a very small extent or not at all in the furniture body (furniture doors, furniture flaps or drawers, the depth of which is substantially smaller than the depth of the furniture carcass).
    Object of the present invention is to provide a furniture drive of the type mentioned in the introduction with a simplified design.
    This is achieved according to the invention by the features of patent claim 1. Further embodiments of the invention are indicated in the dependent subclaims.
    According to the invention, it is thus provided that the furniture drive has a reduction mechanism, which converts a pivoting movement of the ejection lever into a linear movement of the plunger, the reduction mechanism having at least one angular lever rotatably mounted with two lever arms around a rotation axis, 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 rotational axis of the angle lever and the pivot axis of the ejection lever are arranged stationary relative to each other.
    By the provided reduction mechanism with the bell crank, two functions can be simultaneously enabled. On the one hand, the reduction ratio can be variably adjusted by the respective choice of the geometry of the angle lever, on the other hand a force diversion can be brought about via the angle lever, so that also an angular ejection of the tappet relative to the (main) ejection direction of the ejection lever is possible. In this way, the furniture drive can be formed with a more compact design.
    By the arrangement of a pivotally mounted angle lever, on the first lever arm of the ejection lever rests or rolling (for example via a arranged on the ejection lever pressure roller), can be caused by the respective size and contour of the angle lever and an extension of the pressure path in non-linear translation. The bell crank and / or the ejector lever may have at least one convexly curved portion for abutment with each other.
    The bellcrank means that when the movable furniture member is ejected from the closed end position (i.e., when the electric drive unit starts to move slowly), there is a high power transmission at a low gear ratio. Thus, when starting from the closed end position, a particularly large torque is available, so that heavily loaded trolley boxes, flaps or doors can be easily ejected from the closed end position. The gear ratio may then decrease 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 include 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. In a structurally simple embodiment can be provided that the first and the second lever arm of the angle lever are integrally formed together.
    Alternatively, it is possible that that angle which the first lever arm and the second lever arm of the bellcrank lock relative to each other, by an adjusting device - preferably continuously - is adjustable. In this way, for example, by a fitter on site, a selective adjustment of the position of the tappet can be brought about. In operation, however, 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.
    Further details and advantages of the present invention will become apparent from the embodiment shown in the figures. It shows or show:
    1 is a furniture with a furniture body and a relative thereto movably mounted furniture part in a perspective view,
    2a, 2b of the furniture drive according to FIG. 1 in two different perspective views,
    Fig. 3 of the furniture drive in an exploded view, and
    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 piece of furniture 1 with a furniture body 2 and a relatively movable furniture part 3 in a perspective view. Im shown
    Embodiment, the movable furniture part 3 is formed as a door which is pivotally mounted about a perpendicular axis relative to the furniture body 2. On the cabinet cover 7 of 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 to an open position. For this purpose, the movable furniture part 3 projects beyond the cabinet lid 7 of the furniture body 2, so that the rear side of the movable furniture part 3 forms an abutment surface for the extendable ram 6.
    Fig. 2a shows a view of the arranged on the furniture body 2 furniture drive 4gemäß Fig. 1 in an enlarged view. The furniture drive 4 is mounted on a base plate 8 to be fixed to the furniture body 2, and includes a housing 9 in which an electric drive unit 10 having a gear for electromotive driving of the ejection lever 12 is disposed. The ejection lever 12 is rotatably mounted relative to the housing 9 about a, preferably in mounting position perpendicular, pivot axis 11. The triggering of the electric drive unit 10 may be performed by sensors that detect a manually generated (closing) movement of the movable furniture part 3 by a user. A simple releasability of the furniture drive 4 is given by a touch-latch functionality. For this purpose, it may be provided that 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 Rleicheinheit the furniture drive 4 are supplied and wherein the electric drive unit 10 of this control unit or control is controllable. The ejector lever 12 has an ejection surface 14 disposed between the pivot axis 11 and the free lever end 13 of the ejection lever 12, 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 - thrust lever 20 (FIG. 2 b). The bell crank 15 is supported about an axis of rotation 16 which is stationary with respect to the pivot axis 11 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 in a linear movement of the plunger 6.
    Fig. 2b shows the furniture drive 4 in a further perspective view. The ejection lever 12 has an ejection surface 14 arranged between the rotational axis 11 and the free lever end 13, 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 11 of the ejection lever 12. The position of the ejection lever 12 according to FIG. 2b corresponds to the closed position of the movable furniture part 3, wherein the angle lever 15 abuts with the first lever arm 18 on a region of the ejection surface 14 of the ejection lever 12lose adjacent to the rotational axis 11. The area where the ejection lever 12 and the first lever arm 18 abut against each other advances upon the ejection of the movable furniture part 3 from the vicinity of the pivotal axis 11 of the ejection lever 12 toward the free lever end 13 of the ejection lever 12, with a substantially uniform change of the power arm. One end of the second lever arm 19 is pivotally connected to the curved push lever 20, wherein the push lever 20 drives the plunger 6 via a movably mounted slide 22. The plunger 6 is linearly displaceably mounted relative to a guide element 17 attached to the base plate 8 in the direction of the arrow 32 shown.
    Fig. 3 shows the furniture drive 4 in an exploded view. On the base plate 8, a guide device 23 for guiding the slider 22 is to be fastened. On the slider 22, a holder 24 for receiving a damping device 25 is mounted, through which a closing movement of the movable furniture part 3 is damped. In the embodiment shown, the damping device 25 is designed as a, preferably hydraulic, piston-cylinder unit. The housing 9 of the electric drive unit 10 is releasably securable to a receiving profile 23, which is to be screwed to a strip 24 running perpendicularly in the mounting position, via a snap connection. The furniture drive 4 comprises a discharge lever 12 pivotally mounted about a pivot axis 11 with an ejection surface 14 which cooperates with the first lever arm 18 of the angle lever 15 in a mounting position.
    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. By the spring device 28, the plunger 6, the ejection lever 12, and / or the angle lever 15 after a discharge operation again in a standby position, which corresponds to the closed end position of the movable furniture part 3, recoverable. At the free end of the plunger 6, a first part 31 of a locking device 30 is arranged, by means of which the movable furniture part 3 can be held in the fully closed position and / or moved to the full closed position towards the end of the closing movement. For this purpose, a part 31 is arranged at the free end of the plunger 6, which cooperates magnetically with a corresponding part, which is arranged orausgebildet on the movable furniture part 3.
    Fig. 4a-4d show the ejection process of the plunger 6 in time sequences. InFig. 4a, the closed position of the plunger 6 is shown, which also corresponds to the closed end position of the movable furniture part 3. Here, the free end of the first lever arm 18 of the bell crank 15 loosely abuts against the discharge surface 14 of the discharge lever 12 adjacent to the rotation axis 11 of the discharge lever 12. Thus, at the beginning of the ejecting operation, a relatively short force arm (ie, the distance between the rotation axis 11 and the position where the ejection lever 12 and the first lever arm 18 of the angle lever 15 contact each other) is present, and a predetermined torque M of the electric drive unit 10 becomes larger F is translated to the movable furniture part 3. The position where the first lever arm 18 of the bell crank 15 abuts against the ejection surface 14 of the ejection lever 12 moves toward a free lever end 13 of the ejection lever 12 from a region adjacent to the rotational axis 11 of the eject lever 12 during ejection, with a smooth change the force arm and jumps are avoided in the applied force. The free end of the second
    Lever arm 19 of the angle lever 15 acts - directly or indirectly - with the plunger 6 together. In the exemplary embodiment shown, the second lever arm 19 of the angle lever 15 is connected to the slide 22 of the plunger 6 via at least one, preferably curved, push lever 20.
    4b shows a further extended position of the plunger 6. The ejection lever 12 driven by the electric drive unit 10 has been rotated about the pivot axis 11, whereby the angle lever 15 is pivotable about the rotation axis 16. By this rotation of the angle lever 15 and the linearly movable slide 22 of the plunger 6 in the ejection direction is further moved in the direction of the arrow 32.
    Fig. 4c shows a further extended position of the plunger 6, wherein the damper 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 now takes place with a smaller 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 the magnetic coupling of the part 31 and move further in the open position. If, however, 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 accomplished by a control 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 also a retraction of the movable furniture part 3 (which is magnetically coupled to the plunger 6) into the closed end position is possible. 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 is a magnetic attraction can be produced. Alternatively, it is for example possible to form the movable furniture part 3 at least partially metallic, wherein the magnetically formed part 22 - optionally by interposition of a plastic support for noise reduction - directly on a metallic portion of the movable furniture part 3 is effective.
    A particular advantage of the invention is also recognizable, 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 are possible by the construction shown. In Fig. 4d, namely, the direction 32 of the linear movement of the plunger 6 can be seen, which is substantially 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 therefore provide very high ejection forces, whereby this particular is also suitable for ejection of refrigerator doors or freezer flaps. Due to the predominant negative pressure in refrigerators or freezers, these are often difficult to open, which is made even more difficult by the arrangement of a magnetic seal (which seals the refrigerating compartment). The furniture drive 4 according to the invention can remedy this situation, it being possible to provide that the furniture drive 4 is combined to form a common modular unit and that-apart from any electrical lines-only the plunger 6 protrudes from this common unit.
    权利要求:
    Claims (14)
    [1]
    1. Furniture drive (4) for ejecting a movable furniture part (3) from a closed end position relative to a furniture body (2), comprising: - a housing (9); - An in or on the housing (9) arranged electric drive unit (10); - A by the electric drive unit (10) drivable ejection lever (12) which is rotatably mounted about a pivot axis (11) relative to the housing (9); - A by the ejection lever (12) drivable, linearly movable plunger (6) for ejecting the movable furniture part (3); characterized in that the furniture drive (4) comprises a reduction mechanism (5) which converts a pivotal movement of the ejection lever (12) into a linear movement of the plunger (6), the reduction mechanism (5) comprising at least one bell crank (15) rotatably mounted about an axis of rotation (16) ) having two lever arms (18, 19), wherein a first lever arm (18) of the angle lever (15) with the ejection lever (12) and a second lever arm (19) of the angle lever (15) cooperates with the linearverfahrbaren plunger (6) and wherein the rotation axis (16) of the angle lever (15) and the pivot axis (11) of the ejection lever (12) are arranged stationary relative to each other.
    [2]
    2. Furniture drive according to claim 1, characterized in that the ejection lever (12) on the first lever arm (18) of the angle lever (15) slidably or abrollendanliegt.
    [3]
    3. Furniture drive according to claim 1 or 2, characterized in that the ejection lever (12) and / or the first lever arm (18) of the angle lever (15) each have at least one convexly curved portion for mutual investment.
    [4]
    4. Furniture drive according to one of claims 1 to 3, characterized in that the first lever arm (18) of the angle lever (15) has a free end which in the closed end position of the movable furniture part (3) on an ejection surface (14) of the ejection lever (12 ) is present.
    [5]
    Furniture drive according to one of claims 1 to 4, characterized in that the point at which the first lever arm (18) of the angle lever (15) abuts against an ejection surface (14) of the ejection lever (12) during the ejection process starts from an axis of rotation (11) ) of the ejection lever (12) travels along the ejection surface (14) toward a free lever end (13) of the ejection lever (12).
    [6]
    6. Furniture drive according to one of claims 1 to 5, characterized in that the second lever arm (19) of the angle lever (15) is connected to at least one - preferably curved - thrust lever (20) which cooperates with the linearly movable plunger (6) ,
    [7]
    7. Furniture drive according to one of claims 1 to 6, characterized in that the first and the second lever arm (18, 19) of the angle lever (15) relative to each other include an acute angle.
    [8]
    8. Furniture drive according to claim 7, characterized in that the angle, the first and the second lever arm (18, 19) of the angle lever (15) relative to each other, in all operating positions of the angle lever (15) is constant.
    [9]
    9. Furniture drive according to one of claims 1 to 8, characterized in that the first and the second lever arm (18,19) of the angle lever (15) are formed integrally.
    [10]
    10. Furniture drive according to one of claims 1 to 9, characterized in that a spring device (28) is provided, through which the plunger (6), the ejection lever (12), and / or the angle lever (15) after a discharge operation again in a standby position, which corresponds to the closed end position of the movable furniture part (3) is resettable or are.
    [11]
    11. Furniture with a movable furniture part, which is driven by a furniture drive according to one of claims 1 to 10.
    [12]
    12. Furniture according to claim 11, characterized in that the plunger (6) in the closed end position of the movable furniture part (3) rests against this.
    [13]
    Furniture according to claim 11 or 12, characterized in that a holding device (30) is provided by which the movable furniture part (3) is held in the fully closed position and / or movable to the full closed position.
    [14]
    14. Furniture according to claim 13, characterized in that the locking device (30) comprises at least two parts (31), wherein a first part (31) on the plunger (6) and a second part on the movable furniture part (3) is arranged or formed, wherein the two parts (31) exert a magnetic attraction force on each other in the closed position of the movable furniture part (3).
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    AT5429U1|2002-07-25|DAMPING DEVICE FOR MOVABLE FURNITURE
    同族专利:
    公开号 | 公开日
    JP2016537535A|2016-12-01|
    WO2015070264A1|2015-05-21|
    JP6258489B2|2018-01-10|
    EP3068266A1|2016-09-21|
    CN105744858A|2016-07-06|
    EP3068266B1|2017-09-06|
    CN105744858B|2019-01-22|
    ES2650550T3|2018-01-19|
    AT514944B1|2015-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2004101919A1|2003-05-19|2004-11-25|Julius Blum Gmbh|Item of furniture equipped with a movable furniture part that can be acted upon by an energy storing means|
    AT504838A1|2007-02-15|2008-08-15|Blum Gmbh Julius|DEVICE FOR EJECTING A MOVABLE FURNITURE PART|
    WO2011130758A1|2010-04-19|2011-10-27|Julius Blum Gmbh|Ejector for ejecting a movable furniture part|
    EP2380459A1|2010-04-23|2011-10-26|Paul Hettich GmbH & Co. KG|Ejector device|
    JP2000193060A|1998-12-24|2000-07-14|Mach Eng:Kk|Slider unit with return spring and pick-and-place device|
    JP2001055863A|1999-08-19|2001-02-27|Toshiba Corp|Door opening device for storage|
    DE202007006302U1|2007-04-30|2008-04-03|Grass Gmbh|Furniture and device for ejecting a furniture part|
    AT12708U1|2008-06-19|2012-10-15|Blum Gmbh Julius|FURNITURE DRIVE|
    KR20100064022A|2008-12-04|2010-06-14|삼성전자주식회사|Refrigerator and control method thereof|
    JP2011001968A|2009-06-16|2011-01-06|Mach Eng:Kk|Cam device and pick-and-place-unit using the same|
    AT510017B1|2010-08-26|2012-01-15|Blum Gmbh Julius|EJECTION DEVICE FOR A MOVABLE FURNITURE PART|DE102017108197A1|2017-04-18|2018-10-18|Hettich-Oni Gmbh & Co. Kg|Quarter turn actuator and furniture|
    CN111608545A|2020-05-06|2020-09-01|广东美的厨房电器制造有限公司|Household electrical appliance|
    法律状态:
    2020-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20191114 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA880/2013A|AT514944B1|2013-11-14|2013-11-14|furniture drive|ATA880/2013A| AT514944B1|2013-11-14|2013-11-14|furniture drive|
    PCT/AT2014/000175| WO2015070264A1|2013-11-14|2014-09-29|Furniture drive|
    CN201480062105.8A| CN105744858B|2013-11-14|2014-09-29|Furniture drive|
    EP14801906.0A| EP3068266B1|2013-11-14|2014-09-29|Furniture drive|
    JP2016529472A| JP6258489B2|2013-11-14|2014-09-29|Furniture drive|
    ES14801906.0T| ES2650550T3|2013-11-14|2014-09-29|Furniture drive|
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