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1. 发明授权

US5052249A Bolt wrench 失效
标题翻译：螺栓扳手
公开(公告)号：US5052249A
公开(公告)日：1991-10-01
申请号：US501107
申请日：1990-03-30
申请人： Seitaro Go
发明人： Seitaro Go
IPC分类号： G21C19/365 , B25B13/48 , B25B21/00 , B25B23/00 , B25B23/10 , G21C3/335
CPC分类号： B25B13/48 , B25B21/002 , B25B23/00 , B25B23/10 , G21C3/335 , Y02E30/40
摘要： An elongated wrench for fastener bolts, such as commonly used with nuclear fuel assemblies for a boiling water type nuclear reactor. The bolt wrench includes a socket wrench mounted to a control rod, an outer cover for supporting the control rod for axial as well as rotational movement therein, a plurality of releasable hooks pivotally mounted to the control rod around the socket wrench, and a control lever for moving the outer cover relative to the control rod to cause the releasable hooks to grip a fastener bolt. In a second embodiment, a pair of releasable hooks having guide rollers are pivotally mounted to a support sleeve which, in turn, is mounted on the outer cover for axial movement relative thereto. An actuator link having a pair of guide grooves adapted to receive the associated rollers is movable along the support sleeve in response to axial movement of the outer cover relative to the control rod. The guide grooves are configured to cause the releasable hooks to grip the bolt upon axial movement of the actuator link as caused by the axial movement of the outer cover.
摘要翻译：用于紧固螺栓的细长扳手，例如通常用于沸水型核反应堆的核燃料组件。螺栓扳手包括安装到控制杆的套筒扳手，用于支撑控制杆以用于轴向以及在其中的旋转运动的外盖;多个可释放的钩，其可枢转地安装到控制杆周围的套筒扳手，以及控制杆用于相对于控制杆移动外盖以使可释放的钩子夹紧紧固螺栓。在第二实施例中，具有引导辊的一对可释放的钩枢转地安装到支撑套筒上，支撑套筒又安装在外盖上，用于相对于其轴向移动。响应于外盖相对于控制杆的轴向运动，具有适于接收相关联的辊的一对引导槽的致动器连杆可沿支撑套筒移动。引导槽构造成当由于外盖的轴向运动而导致致动器连杆的轴向运动时，可释放的钩子夹紧螺栓。

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