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    • 10. 发明授权
    • Push type fastener
    • 推式紧固件
    • US5562375A
    • 1996-10-08
    • US338111
    • 1994-11-09
    • Steven A. Jackson
    • Steven A. Jackson
    • F16B5/06F16B19/10F16B13/06
    • F16B19/1081F16B5/0642
    • A push type fastener for fastening a movable structural part (41) to a fixed structural part (43), wherein the coupling and decoupling actions are both a push type operation, the fastener consisting of a plunger (12) having a shank (20) with a plunger head (18) at one end and a threaded end portion (26a) at the other end, an expandable grommet (14) adapted to receive the plunger shank (20) therethrough, and an attachable head (16) which is securable to the threaded end of the plunger shank (20). The fastener (10) requires each structural part (41, 43) to be provided with an aperture (45, 46) and the attachable head (16) to be smaller than the aperture (46) in the second structural part. The plunger (12) is extensible through the grommet (14) and is structurally configured with an external camming surface (25) which is cooperatively engageable with internal surfaces (38) of the grommet so that when the plunger is inserted in the grommet, the relative positioning of said cooperable camming surfaces determines the expansion of the grommet. Coupling of the parts is effected when the grommet is inserted in the aperture (46) in the fixed structural part (43) and expanded by pushing the plunger head (18) and plunger at least a minimal distance through the grommet. Decoupling is effected by pushing the attachable head (16).
    • 一种用于将可移动结构部件(41)紧固到固定结构部件(43)上的推动型紧固件,其中所述联接和解耦动作都是推动式操作,所述紧固件由具有柄(20)的柱塞(12) 在一端具有柱塞头部(18),在另一端具有螺纹端部部分(26a),适于容纳柱塞杆(20)穿过其中的可膨胀索环(14)和可固定的可连接头部(16) 到柱塞柄(20)的螺纹端。 紧固件(10)需要每个结构部件(41,43)设置有孔(45,46),并且可连接头部(16)比第二结构部件中的孔口(46)小。 活塞(12)可通过索环(14)伸展,并在结构上构造有外部凸轮表面(25),该外部凸轮表面可与索环的内表面(38)协作地接合,使得当柱塞插入索环中时, 所述可配合的凸轮表面的相对定位决定了索环的膨胀。 当将索环插入固定结构部件(43)中的孔(46)中并且通过将柱塞头(18)和柱塞推动至少最小距离通过索环而膨胀时,可实现部件的耦合。 通过推动可附接头(16)实现去耦。