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1. 发明申请

WO2003101239A2 SECURITY CLUTCH WITH SELF-CENTERING SPRING 审中-公开
标题翻译：安全离合器与自中心弹簧
公开(公告)号：WO2003101239A2
公开(公告)日：2003-12-11
申请号：PCT/US2003/005139
申请日：2003-02-21
申请人： B.A.BALLOU & CO., INC.
发明人： HAMM, David, Henry, Jr.
IPC分类号： A44C
CPC分类号： A44C7/003 , A44D2201/34 , Y10T24/41 , Y10T24/44376 , Y10T24/45743 , Y10T24/45754 , Y10T24/4614
摘要： A security clutch (10) for a jewelry post (12) with a circumferential groove (14) includes a housing (20) with a post receiving aperture (22) extending therethrough and two access ports (52, 64, 54, 66) through a side wall (34, 38). A pair of interlocking C-shaped lock members (56, 58) each include an inner free end that carries a lug anchor (68, 70) and an outer free end that serves as a trigger (60, 62). The lug anchors (68, 70) are spring-biased by a spring (40) toward one another to thereby urge the triggers (60, 62) outward through their respective access ports. The inner free ends are also urged toward one another by the forces of the spring (40) to slidably reside in the post receiving aperture (22) of the housing (20) into locking engagement with the circumferential groove (14) of the jewelry post (12) residing in the post receiving aperture (22). The spring (40) is serpentine in configuration. The serpentine configuration of the spring (40) in communication with the inner wall of the housing (20) enables the spring (40) to be precisely centered in the housing (20) thereby providing a precision and smooth operating security clutch (10) for a jewelry post (14).
摘要翻译：一种用于具有圆周凹槽（14）的饰品支柱（12）的安全离合器（10）包括具有延伸穿过其中的柱接收孔（22）的壳体（20）和通过其中的两个进入口（52,64,54,66）侧壁（34,38）。一对互锁的C形锁定构件（56,58）各自包括内部自由端，该内部自由端承载用作触发器（60,62）的凸耳锚（68,70）和外自由端。凸耳锚杆（68,70）通过弹簧（40）朝向彼此弹簧偏置，从而通过其各自的进入端口向外推动触发器（60,62）。内部自由端也被弹簧（40）的力相互推压以可滑动地位于壳体（20）的柱接收孔（22）中，以与珠宝柱的周向凹槽（14）锁定接合（12），其位于所述柱接收孔（22）中。弹簧（40）构型为蛇形。与壳体（20）的内壁连通的弹簧（40）的蛇形构造使得弹簧（40）能够精确地居中在壳体（20）中，从而提供精确和平滑的操作安全离合器（10），用于珠宝店（14）。

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