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    • 4. 发明申请
    • HEIGHT ADJUSTMENT MECHANISM FOR A CHAIR SEAT BACK
    • 椅子座椅高度调节机构
    • WO1994003088A1
    • 1994-02-17
    • PCT/CA1993000307
    • 1993-07-29
    • DOERNER PRODUCTS LTD.
    • DOERNER PRODUCTS LTD.STUMPF, William, S.PATTON, Art, A.HELMOND, Gerard, G.
    • A47C07/40
    • A47C7/402
    • An improved seat back height adjustment mechanism for a chair is disclosed. The improved height adjustment mechanism includes a U-shaped mounting bracket having a back wall and two side walls. A longitudinal cam having a handle is rotatably mounted in the bracket between the side walls and spaced from the back wall. A seat back support arm is insertable through the bracket between the cam and the bracket back wall. The cam is provided with a plurality of planar faces extending in the longitudinal direction disposed around about a third of the circumference of the cam. The radial length of the line extending perpendicularly from each planar face to the longitudinal axis of the cam increases steadily from one planar face to the next in one direction around the circumference of the cam. This steady increase in distance of the planar faces from the axis of the cam provides a cam action on the seat back support arm when the cam is rotated in one direction with the support arm located between the cam and back wall. When the support arm has been sufficiently compressed between the cam and back wall, one of the planar faces will be bearing against the surface of the support arm thereby forming a positive lock between the cam and support arm which prevents loosening of the cam due to rotation of the latter to the unlocked position.
    • 公开了一种用于椅子的改进的座椅靠背高度调节机构。 改进的高度调节机构包括具有后壁和两个侧壁的U形安装支架。 具有手柄的纵向凸轮可旋转地安装在支架之间的侧壁之间并与后壁间隔开。 座椅靠背支撑臂可通过支架插入凸轮和支架后壁之间。 凸轮设置有沿纵向方向延伸的多个平面,所述平面围绕凸轮的圆周的大约三分之一设置。 从凸轮的纵向轴线垂直延伸的线的径向长度从凸轮的圆周方向的一个平面到下一个方向稳定地增加。 当凸轮沿着一个方向旋转,支撑臂位于凸轮和后壁之间时,平面从凸轮的轴线的距离的稳定增加提供了座椅靠背支撑臂上的凸轮作用。 当支撑臂已经在凸轮和后壁之间被充分压缩时,其中一个平面将抵靠支撑臂的表面,从而在凸轮和支撑臂之间形成一个正的锁定,这防止由于旋转而使凸轮松动 后者到解锁位置。
    • 5. 发明申请
    • A CHAIR
    • 一把椅子
    • WO1992019132A1
    • 1992-11-12
    • PCT/AU1992000210
    • 1992-05-08
    • OWEN, Earl
    • A47C07/40
    • A47C1/023
    • A chair (10) comprising at least one leg (21, 23) depending from a seat (30), a backrest (40) mounted on a support (41) and a backrest adjustment mechanism (45, 80), said chair (10) being characterised by said backrest adjustment mechanism (45, 80) being adjustable from a first position to a second position to control the depth of said seat (30), said backrest adjustment mechanism (45, 80) being releasably prevented from backward movement, with forward movement being performed by a single force.
    • 一种椅子(10),包括从座椅(30)悬挂的至少一个腿部(21,23),安装在支撑件(41)和靠背调节机构(45,80)上的靠背(40),所述椅子 )的特征在于所述靠背调节机构(45,80)可从第一位置调节到第二位置以控制所述座(30)的深度,所述靠背调节机构(45,80)可释放地防止向后移动, 其中向前运动通过单个力进行。
    • 8. 发明公开
    • Adjusting device for gradually arrestingly adjusting the height of the back rests of working-chairs
    • 调整设备,高效地调整工作椅背面的高度
    • EP0210584A3
    • 1987-09-30
    • EP86110107
    • 1986-07-23
    • August Fröscher GmbH & Co. K.G.
    • Suhr, Heinz-PeterWeinberger, Bernd
    • A47C07/40
    • A47C7/402
    • Die Verstelleinrichtung (10) für die stufenweise arretier bare Höhenverstellung von Rückenlehnen an Arbeitsstühlen mit einem vertikalen Haltearm (11) weist auf diesem seitlich aufgesteckte U-förmige Gleitschienen (12) auf, auf welche ein C-förmiges längsgestrecktes Profilteil (15) höhenverschiebbar aufgesteckt ist. Im einen ver längerten Schenkel (12.2, 12.8) sind Rastvertiefungen (25) ausgebildet, in die die Rastnase (26.2) eines gelenkig am C-förmigen Schiebeführungselemente (15) gelagerten Rast hebels (26) eingreift. Dieser ist gegen eine Druck feder (30) mit Hilfe der Handhabe (29) verschwenkbar. In ausgerasteter Stellung kann das Schiebeführungs element (15) mit der Rückenlehne in der Höhe verstellt werden.
    • 用于工作座椅靠背的逐步高度调节的调节机构包括两个U形导杆,包括从椅子的座椅向上延伸的矩形支撑臂的侧边缘。 背靠背安装在其上的C形滑块包围并可在导杆上滑动。 一个导杆具有形成锁定凹部的较宽的凸缘。 枢转地安装在滑块上的锁定杆具有可接合在锁定凹部中的鼻部,以将滑块保持在选定的固定位置。 锁定杆被弹簧偏置到锁定位置,并且通过滑块侧面的手柄可释放,使得锁定杆可以被释放,并且靠背靠着的滑块用一只手上下移动。
    • 10. 发明申请
    • CLAMP FOR ADJUSTABLE-HEIGHT SEAT-BACKS
    • CLAMP FOR靠背可调
    • WO1997024957A1
    • 1997-07-17
    • PCT/DE1996002245
    • 1996-11-22
    • SIFA SITZFABRIK GMBHGEBHARD, Reinhard
    • SIFA SITZFABRIK GMBH
    • A47C07/40
    • A47C7/402
    • A clamp (1) for adjustable-height seat-backs, consisting of a guide member (2) for a tubular component (3) of the seat-back and a clamping device for clamping said tubular component in the guide member, the clamping device consisting of a clamping member (10) fitted on an upper pivot to swivel on the tubular component (3) or a component beside and firmly secured to it, and an actuator (6), the actuator (6) being fitted beneath the pivot of the clamping member (10) so as to rotate behind it in relation to the tubular component (3), and the actuator (6) having at least two different diameters from its pivot.
    • 钳位为高度椅子的可调节的靠背,其由引导部(2)的管状部件(3)的靠背,以及用于在所述引导部件夹持所述管状部的夹紧装置,其特征在于,所述夹持装置包括一个夹持体(10)连接至(1) 在管部分(3)朝向所述引导部件(2)或相邻的固定部分连接到其上的上部枢轴点安装,以及致动体(6),其中所述操作体(6)下方的夹紧体的枢转点(10) ,可相对于该管部件(3)的夹持体后面(10)布置,并且其中,从它的来自至少两个不同直径的旋转轴操作体(6)。