• 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:
    The chair comprises a seat 4 and a back 5. The seat 4 is in contact with the front seat portion 41 along a seam extending generally orthogonally to the front seat portion 41 and the chair symmetry plane supported by the seat foundation structures 1, 2, 7, 71. And a rear seat portion 42. The chair is fitted with the seat seam 43 so that the user of the chair sitting on the seat 4 with his back against the back 5 can take a seating position where his hip joint is normally placed on a vertical plane, including the seam 43. Means 7 for selectively adjusting the distance between the backrests 5. Means 8, 9, 14, 15, and 16 for vertically moving the rear seat portion 42 with respect to the front seat portion 41 are provided. The vertical movement means comprises a lever 9 and a support point 15 fixed to the front seat portion 41. The blocking device 14 has a variable length and functions to hold the rear seat portion 42 on the same surface as the front seat portion 41 by the lever means 9 at one end position. . The chair also includes a trigger mechanism 16 that lowers the rear seat portion 42 relative to the front seat portion by reducing the length of the blocking device 14 during manual operation.
    公开号:KR20010041498A
    申请号:KR1020007009666
    申请日:1999-02-25
    公开日:2001-05-25
    发明作者:린네토미；린네카리；린네위르외
    申请人:린네 토미；린네 카리；린네 위르외；
    IPC主号:
    专利说明:

    Chair {A CHAIR}
    The present invention relates to a chair of the kind as defined in the preamble of claim 1.
    Chairs of this kind are known from WO 97/10735.
    The present invention therefore relates to a chair of the type comprising a seat and a backrest, which is in contact with the front seat portion supported by the chair base and along the seam extending generally parallel to the intersection between the seat and the backrest. And a rear seat portion, wherein the chair is provided with means for selectively adjusting the horizontal distance between the seat seam and the backrest, and a means for vertically moving the rear seat portion with respect to the front seat portion.
    Users of these chairs, when the upper body is upright and the buttocks are placed on the seat of the chair and the back is placed on the backrest, adjusts the distance between the backrest and the seam so that the vertical plane through the user's hip joints generally coincides with the seam. .
    When the upper surfaces of the front and rear seat portions lie on one and the same side, i.e. on almost the same side of each other, most of the weight of the user is supported by the rear portion of the seat.
    When the rear portion of the sheet is lowered, most of the initial load (or total load) acting on the rear portion of the sheet is transferred to the front portion of the sheet. Since the seam is set to coincide with the vertical plane through the user's hip joint (or just below the ischial tuberosities), no upward rotational force will be generated in the user's thigh even as the weight increases. Friction between the chair's back and the user's spine absorbs some of the user's weight.
    The buttock part of the user, supported by the seat back portion, is settled down so that the lumbar region of the back part of the user contracts.
    By limiting the vertical downward movement of the seat back portion, the user can adjust the seat to extend the lumbar region and / or adjust the chair to perform load movement from the seat back portion to the seat front portion.
    It is an object of the present invention to provide a simple structure that is easy to manufacture and assemble and that can be easily manipulated by a mechanism that supports the seat back of the chair. It is yet another object of the present invention to provide a structure that can be easily assembled to a chair base of a kind that can be tilted, raised, rocked or moved in a number of different ways with respect to a general chair base, such as a chair support base. have.
    This object is achieved by a chair constructed in accordance with claim 1.
    Another embodiment of the chair of the invention can be found in the dependent claims.
    In a preferred embodiment of the present invention, the longitudinal axis of the blocking device extends substantially parallel to the longitudinal axis of the chair. The blocking device is a gas spring biased by a spring to return the seat rear portion to an end position which is on the same side as the seat front portion when no load acts on the seat rear portion and the trigger mechanism is operated. It may be made of. Preferably, the gas spring comprises valve means operated by a trigger mechanism to separate the primary gas pressure action chamber of the gas spring from the secondary gas chamber. The through passage of the opening valve may be configured to limit the speed of movement of the piston rod / piston of the gas spring with respect to the cylinder portion of the gas spring.
    By suspending the seat rear portion to a so-called bell-crank lever pivotally mounted on the seat front portion, the means for vertically moving the seat rear portion can be given a small structural height and also to the seat front portion. Can be supported by.
    EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated based on embodiment of this invention and an accompanying drawing.
    1 is a schematic side view of a chair constructed in accordance with the present invention.
    2 is a cross-sectional view taken along the line II-II of FIG. 1.
    3 is a schematic cross-sectional view taken along line III-III of FIG. 2.
    4 is a schematic partial cross-sectional view of the apparatus shown in FIG. 1.
    1 shows a chair foundation structure 1 comprising conventional means 2 for lifting, tilting, rocking or rotating a seat 4, which forms part of a chair 3 constructed according to the invention. It is. This chair also includes a backrest 5 which is supported by the foundation structure 1. This backrest 5 is also supported by an apparatus 6 for moving the backrest up, down, inclined, swinging or otherwise.
    The chair seat 4 shown is supported by a slide 7 which is movable horizontally back and forth towards the backrest 5, which can be held in a fixed position relative to the foundation structure 1. The slide 7 can be locked in the desired direction by means not shown.
    The chair seat 4 comprises a front portion 41 and a rear portion 42, wherein the seam 43 between these seat portions 41, 42 is generally parallel to the intersection between the seat 4 and the backrest 5. Do. The seam 43 has an extension as described in detail in WO 97/10735 which is referred to in the present invention.
    The slide supports the front part 41 of the sheet by plate members 71 spaced apart from each other and installed side by side.
    A horizontal pivot shaft 8 is supported between these plate members 71. This pivot axis 8 supports the knee joint or point of the bell-crank lever 9, the arms 10, 11 of this bell-crank lever having a vertical plane comprising the longitudinal axis of the chair, Preferably it lies on a vertical plane constituting the chair symmetry plane. The long arm 10 of the lever 9 extends rearward from the front portion 41 of the chair to support the rear portion 42 of the chair. Suitably, the arm 10 is configured to abut against the lower surface of the front portion 41 of the sheet in an outwardly rotating position, whereby the upper surfaces of the two sheet portions 41, 42 are at least joined (3). In the area of it will substantially lie in common plane.
    Between the front part of the plate-shaped member 71, the horizontal screw hole 151 which accommodates the screw end of the piston rod 143 which protrudes forward from the cylinder body 142 which belongs to the gas spring 14 is provided. A horizontal axis of rotation 15 extends, the rear end 41 of the gas spring being pivoted on the short arm 11 of the bell-crank lever 9 at a predetermined distance below the pivot axis 8. It is pivotally mounted at point 12.
    The gas spring 14 has a conventional configuration and includes a trigger mechanism rod 144 that extends coaxially through the piston rod 143 at the center and protrudes from the front end of the rod. This trigger mechanism rod 144 actuates the valve 145. The gas spring includes a piston or plunger 146 that divides the cylinder 142 into two chambers 147 and 148. In the case shown, the chamber 148 includes a mechanical spring 149, which biases the gas spring 14 toward its maximum length.
    At the lower edge of the front edge of the front seat portion 41 is located a trigger mechanism 16 comprising a bell-crank lever 161, which extends in parallel with the above-described axes 8, 15. Is pivotally mounted at the knee joint or point of the fixed shaft 162. In the inactive state of the trigger mechanism 16, a generally upwardly extending arm 163 is positioned just in front of the rod 144 end and above the pivot axis 162. The other arm 164 of the bell-crank lever extends forward and can be lifted by the user, in this way the effect of the load exerted on the rear seat portion 42 by the bell-crank lever 9. 1, the said back seat part 42 descends with respect to the said front seat part 41 by rotating clockwise in FIG. When the trigger mechanism 16 is released, the valve 145 is closed, whereby the load acting downwardly on the rear seat portion 42 is captured by the gas spring 14 and the gas in the chamber 148. Is compressed. The shaft 15 is mounted for rotation about its axis.
    The present invention can be modified in various forms.
    For example, the gas spring 14 may be replaced by a setting device or regulator that is driven by an electric motor and operates between the shafts 12 and 15. In this respect, it is possible to provide an electric switch type trigger mechanism at a predetermined position to enable selective raising / lowering of the rear seat portion relative to the front seat portion. In another variant, a trigger in the form of a pure machine blocking device coupled to operate between points 12 and 15 by an actuating lever that can set the relative height position of the rear seat portion 42 by turning back and forth by the user. A mechanism can be installed. The blocking device may preferably be in the form of self-latching such that it is caught at least in the compression direction upon release of the trigger mechanism.
    In another embodiment of the present invention, the blocking device may act directly between the slide 7 and the arm 10 of the lever.
    The plate member 71 forms a spaced element and also defines a vertical space in which the device for raising / lowering the seat portion 42 is placed. This plate-shaped member 71 can be attached directly to the conventional seat bases 1 and 2 at least in the case of an office chair or the like.
    However, in the case of chairs for ships, boats and motor vehicles, the foundation structures 1 and 2 and the back suspension 6 can be of several different configurations.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] A chair comprising a seat (4) and a backrest (5), the seat (4) being generally orthogonal to the chair symmetry plane and the front seat portion (41) supported by the seat foundation structures (1,2,7,71). And a rear seat portion 42 in contact with the front seat portion 41 along a seam that extends, wherein the chair is generally seated by a chair user sitting on the seat 4 with his back against the back 5. Means (7) for selectively setting or adjusting the distance between the seat seam (43) and the backrest (5) so as to take a seating position at which its hip joint is placed on a vertical plane including a seam (43); In the chair provided with means (8, 9, 14, 15, 16) for vertically moving the section (42) with respect to the front seat portion (41), the vertical movement means (8, 9, 14, 15, 16)
    Lever means (9) pivotally mounted on the front seat portion (41) by a pivot shaft (8) to support the rear seat portion (42) for vertical movement;
    A blocking device 14 adapted to operate between the lever means 9 and a support point 15 fixed to the front seat portion 41, the blocking device 14 having a variable length and in the one end position. The blocking device (14), which acts to hold the rear seat portion (42) on the same side as the front seat portion (41) via lever means (9); And
    And a trigger mechanism (16) for lowering the rear seat portion (42) relative to the front seat portion by reducing the length of the blocking device (14) during manual operation.
    [2" claim-type="Currently amended] 2. Chair according to claim 1, characterized in that the lever (9) is a bell-crank lever and the blocking device (14) is positioned such that a length change is established in a horizontal direction generally parallel to the chair symmetry plane.
    [3" claim-type="Currently amended] 3. The blocking device (14) according to claim 1 or 2, wherein the blocking device (14) is intended to return the latching devices (144, 145) and the rear seat part to the same level as the level occupied by the front seat part (41). And a gas spring comprising a mechanical spring 149 acting as a mechanism.
    [4" claim-type="Currently amended] 4. The gas spring of claim 3 wherein the gas spring comprises a cylinder 142 consisting of a piston 146 having a valve means 145, the piston 146 being connected to a piston rod 143, the lever 9 ) Is a bell-crank lever comprising an arm 11 extending downward from the pivot point 8, wherein the cylinder 142 of the gas spring 14 is pivot point 12 at the free end of the lever arm 11. Pivotally mounted to the support, the piston rod 143 of the gas spring is fixedly connected to the support point 15, and the latching means 144 and 145 extend coaxially through the piston rod 143 to A rod protruding from a free end, and a pivot mechanism 162 is pivotally mounted to the front seat portion 41 by a pivot shaft 162 to lower the rear seat portion 42 during operation. Chair characterized in that.
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    同族专利:
    公开号 | 公开日
    SE9800654L|1999-09-04|
    DE69907645D1|2003-06-12|
    BR9908435A|2000-10-31|
    US6578918B1|2003-06-17|
    AU2863699A|1999-09-20|
    SE522634C2|2004-02-24|
    EP1059866A1|2000-12-20|
    DE69907645T2|2004-02-26|
    CN1291870A|2001-04-18|
    SE9800654D0|1998-03-03|
    DK1059866T3|2003-10-27|
    CA2321564A1|1999-09-10|
    WO1999044475A1|1999-09-10|
    AU748543B2|2002-06-06|
    JP2002505130A|2002-02-19|
    RU2226064C2|2004-03-27|
    EP1059866B1|2003-05-07|
    AT239407T|2003-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-03-03|Priority to SE9800654A
    1998-03-03|Priority to SE9800654-7
    1999-02-25|Application filed by 린네 토미, 린네 카리, 린네 위르외
    1999-02-25|Priority to PCT/SE1999/000265
    2001-05-25|Publication of KR20010041498A
    优先权:
    申请号 | 申请日 | 专利标题
    SE9800654A|SE522634C2|1998-03-03|1998-03-03|Chair with adjustable seat for the relief of a user's lower back|
    SE9800654-7|1998-03-03|
    PCT/SE1999/000265|WO1999044475A1|1998-03-03|1999-02-25|A chair|
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