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1. 发明授权

US5660088A Adjustable socket wrench with locking arm 失效
标题翻译：带锁定臂的可调式套筒扳手
公开(公告)号：US5660088A
公开(公告)日：1997-08-26
申请号：US597396
申请日：1996-02-08
申请人： Todd W. Benson
发明人： Todd W. Benson
IPC分类号： B25B13/26 , B25B13/44 , B25B23/10 , B25B13/18
CPC分类号： B25B13/44 , B25B13/26 , B25B23/10 , Y10T279/17701
摘要： An adjustable socket wrench with bolt head locking arm for engaging, removing and replacing different size bolts in a work piece. The socket wrench is designed to engage a bolt head at right angles and when locked on the bolt head holding the head with zero tolerance for ease in loosening and tightening the bolt. The wrench includes a wrench body with an upper end portion, a middle portion and a lower end portion. A channel is cut across the width of the upper end portion of the wrench body for receiving a first sliding jaw and a second sliding jaw. The bolt head is received between the first and second jaws. A first jaw guide arm is pivotally mounted on the wrench body with one end of the first jaw guide arm engaging the first jaw. A second jaw guide arm is pivotally mounted on the wrench body with one end of the second jaw guide arm engaging the second jaw. The first jaw guide arm is pivotally mounted to the bolt head locking arm. The bolt head locking arm in turn is pivotally mounted to a first pivot arm. The second jaw guide arm is pivotally mounted to a second pivot arm. The first and second pivot arms are engaged by a tightening nut threaded on the lower end portion of the wrench body. When the tightening nut is threaded upwardly on the wrench body, the first and second pivot arms move upwardly pivoting the first and second jaw guide arms inwardly. The first and second jaw guide arms move the first and second jaws toward each other for engaging a bolt head received therebetween.
摘要翻译：带螺栓头锁定臂的可调套筒扳手，用于接合，拆卸和更换工件中不同尺寸的螺栓。套筒扳手设计成以直角接合螺栓头，当锁定在螺栓头上时，头部保持零位，以方便松动和拧紧螺栓。扳手包括具有上端部分，中间部分和下端部分的扳手主体。在扳手主体的上端部的宽度上切割通道，用于接收第一滑动卡爪和第二滑动卡爪。螺栓头被容纳在第一和第二夹爪之间。第一钳口引导臂可枢转地安装在扳手主体上，第一钳爪引导臂的一端与第一钳口接合。第二钳口引导臂枢转地安装在扳手主体上，第二钳爪引导臂的一端接合第二钳口。第一钳口引导臂枢转地安装到螺栓头锁定臂。螺栓头锁定臂依次枢转地安装到第一枢转臂。第二钳口引导臂枢转地安装到第二枢转臂。第一枢转臂和第二枢转臂通过拧在扳手主体的下端部上的紧固螺母接合。当紧固螺母在扳手主体上向上螺纹时，第一和第二枢转臂向上移动，使第一和第二夹爪引导臂向内枢转。第一和第二钳口引导臂将第一和第二钳口彼此移动以接合容纳在它们之间的螺栓头。

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