• 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), - in or on the housing (9) arranged electric drive unit (1 0), - A by the electric drive unit (1 0) driven ejection lever (12) for transmitting a movement to the movable furniture part (3), - wherein the ejection lever (12) on the one hand rotatably mounted about a rotation axis (11) and on the other hand, a free end of the lever ( 13), wherein the ejection lever (12) between the rotation axis (11) and the free end of the lever (13) has an ejection surface (14), wherein the ejection surface (14) of the ejection lever (12) at least partially has a toothing (15).
    公开号:AT514945A4
    申请号:T881/2013
    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 electric drive unit disposed in or on the housing, an ejection lever drivable by the electric drive unit for transmitting movement to the movable one Furniture part, - wherein the ejection lever is rotatably supported on the one hand about an axis of rotation and on the other hand has a free end of the lever, wherein the lever between the rotational axis and the free end of the lever has an ejection surface.
    Furthermore, the invention relates to an arrangement with a furniture drive of the kind to be described and with a power transmission device for transmitting a force to the ejected furniture part.
    AT 504 838 B1 discloses a furniture drive with a motor-driven ejection lever, wherein in the assembly position the ejection surface of the ejection lever in the closed end position of the movable furniture part bears loosely against a stop of a plunger. The plunger forms part of a force transmission device, wherein the force exerted during the ejection process can be transmitted to the movable furniture part via a gap formed between the ejection lever and the movable furniture part. In this way, also movable furniture parts from the closed end position are ejected, which only to a very small extent or notinin the Möbelkorpushinin (furniture doors, furniture flaps or drawers whose depth is much smaller than the depth of the furniture body).
    In the known furniture drives having an ejection lever, the ejection surface of the ejection lever usually loosely abuts on the furniture part or a power transmission part to be ejected. The transmission of the movement during the ejection process takes place in a force-fitting manner by sliding support of the ejection surface on the movable furniture part or on the force transmission part, wherein a relatively low efficiency can be achieved by the slip occurring.
    Object of the present invention is to provide a furniture drive of the type mentioned in the introduction with an improved power transmission option.
    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 ejection surface of the ejection lever has a toothing at least in regions.
    By providing a toothing on the ejection surface of the ejection lever, a positive power transmission can be made possible, and thus in comparison to a non-positive transmission substantially higher forces are transferable. The positive transmission allows a slip-free, angular transmission of the rotational movement of the ejection lever with high efficiency.
    According to one embodiment, it can be provided that the toothing of the ejection lever has at least one curved section. The toothing can be designed so that when ejecting the movable furniture part from the closed end position (ie when the electric drive unit anfaugsam slowly) a high power transmission at low Wegübersetzung vorhanden.Auf this way is at start from the closed end position a particularly large torque available, so Even heavily loaded drawers can be ejected without problem from the closed end position. The gear ratio may then decrease from a closed end position of the movable furniture part over a predetermined rotational angle range of the ejection lever, so that the power transmission is reduced and the path ratio is increased.
    The toothing of the ejection lever may be formed at least in sections as Üundundverzahnung. Namely, when such a non-circular toothing is used, variable torque characteristics can be realized at a constant driving power of the electric drive unit. While the use of constant ratio gearing always requires the entire gearing and electric drive unit to be designed for maximum torque, with a variable ratio gearing, the required drive torque curve can be optimized in accordance with a constant low drive torque. The non-circular gear may be formed as a revolving gear transmission or as a toothed segment.
    According to one embodiment, the toothing is coupled to the ejector lever or integrally formed with the ejector lever. The toothing is connectable, for example in the form of an attachment with the ejection lever, alternatively, the toothing may be formed as an inherent part of the ejection lever. The production of such an ejection lever is easily possible, for example, by an injection molding process.
    According to another embodiment, the ejection lever may be made variable in length by the arrangement of the toothing, wherein the length of the ejection lever is adjustable via a displacement device. Alternatively, in order to extend the ejection lever, the toothing in the form of an attachment part can be plugged onto the ejection lever, preferably onto the free end thereof.
    To reduce the development of noise, the toothing and / or a counter-toothing cooperating with the toothing can be provided at least in regions with a sound-insulating coating.
    The arrangement according to the invention is characterized by a furniture drive of the type described and by a power transmission device, wherein the toothing of the ejection lever cooperates with a counter-toothing of the power transmission device. The counter-toothing can be formed on a toothed wheel, a toothed wheel portion, a toothed lever, a toothed disc or on a toothed belt of the power transmission device.
    Further details and advantages of the present invention will become apparent from the embodiments 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,
    Fig. 2a, 2b of the furniture drive and a power transmission device in
    Mounting position on the furniture body as well as in a perspective view,
    3 the furniture drive and the power transmission device in an exploded view,
    4a-4d temporal sequences of the ejection process of the movable Möbelteilesausgehend from the closed end position in perspective views,
    5a-5d temporal sequences of the ejection process of the movable furniture part starting from the closed end position in a plan view,
    Fig. 6 shows another embodiment of a furniture drive, wherein the
    Ejection lever is formed integrally with a toothing.
    Fig. 1 shows a piece of furniture 1 with a furniture body 2 and a relatively movable furniture part 3 in a perspective view. In the embodiment shown, the movable furniture part 3 is designed as a door, which is mounted pivotably about a vertical axis relative to the furniture body 2. On the cabinet cover 7 of the furniture body 2, a furniture drive 4 and a power transmission device 5 are mounted for transmitting a force to the movable furniture part 3, wherein the movable furniture part 3 is ejected via a movably mounted plunger 6 from the closed end 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 a stop surface for the movable ram 6.
    Fig. 2a shows a view of the arranged on the furniture body 2 furniture drive 4und the power transmission device 5 of FIG. 1 in an enlarged view. The furniture drive 4 is supported 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 driving an ejection lever 12 is disposed. The ejector lever 12 is pivotally mounted about a pivot axis 11 preferably perpendicular to the mounting base relative to the housing 9. Actuation of the electric drive unit 10 may be accomplished by sensors that detect a manually generated (closed) movement of the movable furniture member 3. A simple releasability of the furniture drive 4 is given by a touch-latch functionality. For this purpose it can 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 controllable is. The ejection lever 12 has an ejection surface 14 disposed between the rotation axis 11 and the free lever end 13 of the ejection lever 12, which is provided with a spline 15 for positive force transmission. In the embodiment shown, the toothing 15 is pivotally mounted coaxially with the axis of rotation 11 of the ejection lever 12 and is coupled in a coupled manner, so that when the ejection lever 12 is pivoted, the toothing 15 also moves. The toothing 15 of the ejection lever 12 is at least partially formed as a non-circular toothing, so that a variable torque on the movable furniture part 3 is transferable. The power transmission device 5 comprises a counter-toothing 16 connected to the plunger 6, which cooperates with the toothing 15 of the ejection lever 12. The plunger 6 is - mounted linearly displaceable relative to the base plate 8, preferably along a guide 17, wherein in the figure shown, a slider 27 connected to the plunger 6 is slidably mounted with a guide element 18 in the form of a rib along the guide 17.
    Fig. 2b shows the furniture drive 4 with the cooperating Kraftübertragungs¬ device 5 in a perspective view. To limit the inner end position of the ejection lever 12 and to limit the inner end position of the slider 27 - are provided - preferably spring-shaped - stops 19 and 20. By a locking device 21, the movable furniture part 3 can be held in the fully closed position and / or moved towards the end of the closing movement in the fully closed position. The holding device 21 comprises at least two parts, wherein a first part 22 on the plunger 6 and a second part (not shown) are arranged or formed on the movable furniture part 3, wherein the part 22 in the closed position of the movable furniture part 3 on the part corresponding to the movable furniture part 3 a magnetic attraction exercises. The formed as a magnet part 22 is mounted transversely to the longitudinal extension of the plunger 6, in particular in the horizontal and / or vertical direction relative to the plunger 3 movable. In addition, a spring device 25 (Fig. 3) can be provided, by means of which the plunger 6 and / or the ejection lever 12 can be restored to a standby position after an ejection operation.
    FIG. 3 shows the arrangement with the furniture drive 4 and with the power transmission device 5 in an exploded view. The base plate 8 has a guide 17 extending in the ejection direction 29 of the plunger 6, along which a guide element 18 of the slider 27 is slidably mounted. The ejection direction 29 of the plunger 6 in this case runs transversely to the (main) ejection direction of the ejection lever 12. In the embodiment shown, the plunger 6, together with the slider 27, the guide member 18 and the counter-toothing 16 integrally formed. The furniture drive 4 with the housing 9 is detachably fastened to a receiving profile 23, which is to be screwed to a strip 24 running vertically in the mounting position, via a snap connection. The furniture drive 4 comprises an ejection lever 12 pivotally mounted about an axis of rotation 11 and having an ejection surface 14 provided with a toothing 15. The gearing 15 is mounted about a pivot axis 28 and is coupled in a motion-coupled manner to the ejection lever 12. In addition to the springy
    Stops 19, 20 for limiting the inner end position of the ejection lever 12 and the plunger 6, a spring device 25 is provided, which comprises at least one designed as a helical spring tension spring. The spring device 25 is anchored with a first end portion on the plunger 6, with a second end portion on a preferably adjustable spring base 26. By the spring device 25, the plunger 6 and / or the ejection lever 12 can be restored to a Ausgangslager again. At the free end of the plunger 6, a first part 22 of a holding device 21 is arranged, wherein the part 22 with a corresponding part, which is arranged or formed on the movable furniture part 3, magnetically cooperates. The magnetic holding force of the locking device 21 can be so be that the movable furniture part 3 does not detach from the part 22 of the plunger 6 after a successful ejection operation, so that only a user removes the movable furniture part 3 from the plunger 6 after overcoming the magnetic holding force. This represents a safety aspect, because the movable furniture part 3 after a false triggering (for example, by pushing the movable Möbelteiles3 by toddlers or pets) is not detached by itself from the plunger 6, whereupon after a predetermined period of time by a control or Rleicheinheit the furniture drive 4, a provision of the Ejection lever 12 and thus also a confiscation of the movable furniture part 3 (which is magnetically coupled to the plunger 6) by the force of the spring device 25 in the closed end position is possible.
    4a-4d show a chronological sequence of the ejection process of the movable furniture part 3. Starting from the closed position shown in FIG. 4a, the ejection lever 12 is swung out after activation of the electric drive unit 10 in the direction of the arrow 30 shown, wherein the teeth 15 of the ejection lever 12 with the counter teeth 16 the Kraftübertragungs¬ device 5 cooperates.
    Fig. 4b shows the plunger 6 after a small extension movement, wherein the movable furniture part 3 is slightly opened. Fig. 4c shows a further open position of the plunger 6, wherein the toothing 15 and the counter toothing 16 run together and a positive power transmission takes place. FIG. 4 d shows a further open position of the plunger 6, wherein the part 22 of the locking device 21 is magnetically coupled to the movable furniture part 3. When the full open position of the plunger 6 is reached, a user can release the movable furniture part 3 by engaging behind the magnetic coupling and move it further in the direction of the open position. On the other hand, if the magnetic coupling between the part 22 and the movable furniture part 3 is not canceled by the user, the movable furniture part 3 is retracted to the full closed position after a predetermined period of time, while maintaining the magnetic coupling. On the movable furniture part 3 is of course a corresponding part of the locking device 21 to arrange or form, so that between the part 22 and the movable furniture part 3 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. Due to the intended construction, doors of tool cabinets, refrigerators, dishwashers or back pipes can therefore also be opened or closed.
    5a-5d show time sequences of the ejection process of the movable furniture part 3 from the closed end position in a plan view. FIG. 5a shows the closed end position of the movable furniture part 3, this figure thus corresponding to the illustration according to FIG. 4a. At the beginning of the ejection operation, both the ejection lever 12 and the plunger 6 are in contact with the stops 19 and 20 via the slide 27. The toothing 15 comprises a first portion 15a and a second portion 15b connected thereto, wherein a movement of the plunger 6 in a first rotation angle range of the ejection lever 12 by co-operation of the first portion 15a with a corresponding portion of the counter toothing 16 at high power ratio with low path ratio. Namely, at the beginning of the ejecting operation, a shorter power arm (that is, the distance between the rotation shaft 11 and the position where the teeth 15 and the counter teeth 16 contact each other) effectively exists, whereby a predetermined torque M of the electric drive unit 10 into a larger force F on the movable furniture part3 is translated.
    5b-5d show the further course of the ejection process, wherein in Fig. 5b, the portion 15a is already out of engagement with the Gegenverahnung 16. In a second rotation angle range, which adjoins the first rotation angle range, a movement of the plunger 6 at a lower power transmission, which decreases in a further ejection movement of the ejection lever 12. The force transmitted to the plunger 6 thus decreases, but a more rapid extension movement of the plunger 6 is brought about. Thus, the portion 15b formed as a non-circular toothing cooperates with the counter-toothing 16, the slider 27 with the associated plunger 6 being moved with a higher travel ratio in the direction of the open position. FIG. 5 c shows a further open position of the plunger 6, wherein it is clearly recognizable that the discharge path of the plunger 6 can be increased by the non-circular formation of the toothing 15 or counter toothing 16. In Fig. 5d, the movable furniture part 3 was moved by manual Zugausübung in the direction open position and after the release of the magnetic coupling of the part 22 of the locking device 21 in a further open position and can then be moved freely thereon. With reference to FIGS. 5a-5d, it can be seen that in the assembled state of the furniture drive 4, the position at which the teeth 15 and the counter teeth 16 contact each other, when ejecting the movable furniture part 3 from the vicinity of the rotation axis 11 of the ejection lever 12 (FIG. 5a). Towards the free lever end 13 of the ejection lever 12 (Figure 5c), there is a substantially uniform change in the force arm and jumps in the applied force are avoided. A particular advantage of the invention is also recognizable, namely that the construction shown allows a force deflection and thus also an angular ejection of the tappet 6 in relation to the ejection direction of the ejection lever 12. In the shown Fig. 5d, namely, the direction 35 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.
    Fig. 6 shows a furniture drive 4 according to another embodiment, wherein the spline 15 is formed integrally with the ejection lever 12. The spline 15 comprises a first portion 15a and a second portion 15b, these two portions 15a, 15b being respectively formed differently curved. In order for the first portion 15a of the gear 15 to swing under the housing 9 of the furniture drive 4 when the ejection lever 12 is ejected, nubs (not shown here) can be arranged on the underside 31 of the housing 9, thus spacing the underside 31 of the housing 9 from the base plate 8b Swiveling the first portion 15a under the housing 9 is possible.
    According to a possible embodiment of the invention, the Möbelantrieb4 can be summarized together with the power transmission device 5 in a housing of a common unit, wherein only the plunger 6 is led out of the housing of this common unit.
    权利要求:
    Claims (15)
    [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), - in or on the housing (9) arranged electric drive unit (10) a discharge lever (12) which can be driven by the electric drive unit (10) for transmitting a movement to the movable furniture part (3), the discharge lever (12) being rotatably mounted around a rotation axis (11) and a free lever end (13 ), wherein the ejection lever (12) between the rotation axis (11) and the free end of the lever (13) has an ejection surface (14), characterized in that the ejection surface (14) of the ejection lever (12) at least partially has a toothing (15).
    [2]
    2. Furniture drive according to claim 1, characterized in that the toothing (15) has at least one curved portion (15 a, 15 b).
    [3]
    3. Furniture drive according to claim 1 or 2, characterized in that the toothing (15) is formed at least in sections as Unrundverzahnung.
    [4]
    4. Furniture drive according to one of claims 1 to 3, characterized in that the toothing (15) with the ejection lever (12) is coupled coupled motion or that the toothing (15) together with the ejection lever (12) is integrally formed.
    [5]
    5. Arrangement with a furniture drive (4) according to one of claims 1 to 4 and with a power transmission device (5) for transmitting a force to the movable furniture part (3), wherein the toothing (15) of the ejection lever (12) miteinererverzaenke (16) of the Power transmission device (5) cooperates.
    [6]
    An arrangement according to claim 5, characterized in that the force transmission means (5) comprises at least one movably mounted plunger (6) for ejecting the movable furniture part (3), the counter-toothing (16) being connected to the plunger (6).
    [7]
    7. Arrangement according to claim 5 or 6, characterized in that the counter-toothing (16) is at least partially curved.
    [8]
    Arrangement according to one of claims 5 to 7, characterized in that the immontierten state of the furniture drive (4) the point at which the toothing (15), the counter teeth (16) touch each other, when ejecting the movable furniture part (3) starting from the Near the rotational axis (11) of the ejection lever (12) towards the free end of the lever (13) of the ejection lever (12) wanders, wherein a substantially uniform change of the power arm takes place.
    [9]
    9. Arrangement according to one of claims 6 to 8, characterized in that the plunger (6) - preferably linearly displaceably mounted along a guide (17).
    [10]
    10. Arrangement according to claim 9, characterized in that the ejection direction (29) of the plunger (6) transversely to the ejection direction of the ejection lever (12).
    [11]
    Arrangement according to one of claims 6 to 10, characterized in that a spring device (25) is provided, by means of which the plunger (6) and / or the ejection lever (12) can be reset to a standby position after an ejection operation.
    [12]
    12. Arrangement according to one of claims 6 to 11, characterized in that the plunger (6) in the closed end position of the movable furniture part (3) rests against it.
    [13]
    Arrangement according to claim 12, characterized in that a retaining device (21) is provided, by which the movable furniture part (3) is held in the fully closed position and / or movable into the complete closed position.
    [14]
    Arrangement according to claim 13, characterized in that the holding device (21) comprises at least two parts, wherein a first part (22) is arranged or formed on the plunger (6) and a second part on the movable furniture part (3), the two parts (22) in the closed position of the movable furniture part (3) to exert magnetic attraction on each other.
    [15]
    Arrangement according to one of claims 6 to 14, characterized in that the housing (9) of the furniture drive (4) has a longitudinal direction (L), the direction (35) of linear movement of the plunger (6) being substantially parallel to the longitudinal direction (L). of the housing (9) extends.
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    同族专利:
    公开号 | 公开日
    WO2015070267A1|2015-05-21|
    US20160242542A1|2016-08-25|
    EP3068964B1|2019-03-13|
    CN105723042A|2016-06-29|
    JP2016537534A|2016-12-01|
    CN105723042B|2018-07-06|
    AT514945B1|2015-05-15|
    JP6348588B2|2018-06-27|
    EP3068964A1|2016-09-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE202006000535U1|2005-03-21|2006-03-09|Julius Blum Gmbh|Furniture with furniture holder, for upper cabinets in e.g. kitchen has ejecting device and a pressurizable actuating device which pressurizes ejecting device to move a flap|
    WO2007090210A2|2006-02-08|2007-08-16|Julius Blum Gmbh|Ejector with a friction clutch|
    AT504838B1|2007-02-15|2008-12-15|Blum Gmbh Julius|DEVICE FOR EJECTING A MOVABLE FURNITURE PART|
    DE102011050020A1|2011-04-29|2012-10-31|Paul Hettich Gmbh & Co. Kg|Ejecting device for a movable furniture part|WO2021243392A1|2020-06-05|2021-12-09|Julius Blum Gmbh|Device for receiving signals via at least one electrically driveable or adjustable furniture element|
    WO2021243394A1|2020-06-05|2021-12-09|Julius Blum Gmbh|Device for controlling at least one electrically drivable or movable furniture element|US4763385A|1985-07-05|1988-08-16|Geze Gmbh|Door closure transmission utilizing an eccentric pinion|
    TW508426B|1999-08-17|2002-11-01|Toshiba Corp|Door opening device for storage apparatus|
    AT413472B|2004-08-16|2006-03-15|Blum Gmbh Julius|EJECTION DEVICE FOR A MOVABLE FURNITURE PART|
    AT502939A1|2005-04-28|2007-06-15|Blum Gmbh Julius|FURNITURE|
    AT504765B1|2007-02-01|2012-04-15|Blum Gmbh Julius|EJECTOR LEVER FOR AN EJECTOR|
    JP4988483B2|2007-09-06|2012-08-01|日立アプライアンス株式会社|Pull-out equipment|
    US7997924B2|2009-07-27|2011-08-16|Cheng Uei Precision Industry Co., Ltd.|Connector for flexible printed circuit board|
    AT509702B1|2010-04-19|2011-11-15|Blum Gmbh Julius|EXTRACTOR FOR EJECTING A MOVABLE FURNITURE PART|
    US8615929B2|2010-07-20|2013-12-31|Scd|Door opening/closing device for ice dispenser in refrigerator|
    FR2984391B1|2011-12-20|2014-10-17|Somfy Sas|ELECTRIC ACTUATOR FOR OPENING|
    DE102012012165A1|2012-05-04|2013-11-07|Liebherr-Hausgeräte Ochsenhausen GmbH|Fridge and / or freezer|
    JP6227341B2|2013-09-13|2017-11-08|日立アプライアンス株式会社|Opening device and equipment provided with the same|AT516812B1|2015-01-29|2019-11-15|Blum Gmbh Julius|Drive device for a movable furniture part|
    AT16159U1|2015-06-09|2019-02-15|Blum Gmbh Julius|Ejecting device for a movable furniture part|
    JP2017089323A|2015-11-16|2017-05-25|日本電産サンキョー株式会社|Automatic closing device and automatic closing device unit|
    DE102016120593A1|2016-10-27|2018-05-03|Hettich-Oni Gmbh & Co. Kg|Opening and closing system with an ejection device for a furniture and operating method for an opening and closing system|
    KR101871056B1|2016-11-03|2018-07-20|엘지전자 주식회사|Refrigerator|
    KR101871057B1|2016-11-03|2018-06-25|엘지전자 주식회사|Refrigerator|
    WO2020252510A1|2019-06-18|2020-12-24|Julius Blum Gmbh|Piece of furniture|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA881/2013A|AT514945B1|2013-11-14|2013-11-14|furniture drive|ATA881/2013A| AT514945B1|2013-11-14|2013-11-14|furniture drive|
    JP2016528865A| JP6348588B2|2013-11-14|2014-10-27|Furniture drive|
    EP14809270.3A| EP3068964B1|2013-11-14|2014-10-27|Arrangement with a furniture drive|
    CN201480062101.XA| CN105723042B|2013-11-14|2014-10-27|Furniture drive|
    PCT/AT2014/000193| WO2015070267A1|2013-11-14|2014-10-27|Furniture drive|
    US15/145,129| US20160242542A1|2013-11-14|2016-05-03|Furniture drive|
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