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1. 发明授权

US4721320A Bicycle trailer hitch 失效
标题翻译：自行车拖车搭便车
公开(公告)号：US4721320A
公开(公告)日：1988-01-26
申请号：US42793
申请日：1987-04-27
申请人： Bruce W. Creps , Donald A. George , Peter B. Berry , John E. Siekert , Robert C. Nyquist , Jeffrey B. Nyquist
发明人： Bruce W. Creps , Donald A. George , Peter B. Berry , John E. Siekert , Robert C. Nyquist , Jeffrey B. Nyquist
IPC分类号： B62K27/12
CPC分类号： B62K27/12
摘要： A bicycle trailer hitch which attaches to the bicycle between the chain stay and the seat stay at the crotch formed at the convergence of the two stays, the method of attachment being by three attaching members affixed to and extending inward from a main hitch member to which the bicycle trailer is connected. The three attaching members include a cone-plate member, wherein the intersection of a cone and a plate form a notch which engages the crotch between the two stays; a fixed finger located beneath the chain stay, and a movable finger located above the seat stay. Movement of the movable finger towards the seat stay is accomplished a pivoting member and a threaded tightening member, each attached pivotally at one end to the main hitch member, wherein the non-attached, threaded end of the tightening member passes through an aperture in the pivoting member so that rotation of a threaded knob engaged to the tightening member past the pivoting member will cause the knob to press against the pivoting member. This pressure rotates the pivoting member, pressing the movable finger against the seat stay. Continued tightening of the knob also will cause pressure by the fixed finger against the chain stay and movement of the cone-plate member into notch abutment against the crotch, this combination of pressures by the three attaching members against the bicycle frame locking the bicycle trailer hitch securely to the bicycle.
摘要翻译：一种自行车拖车挂钩，其在链条支撑件与形成在两个支柱的会聚处的裆部处的座位支撑件之间附接到自行车，附接方法由三个附接构件固定并从主搭扣构件向内延伸，自行车拖车已连接。三个连接构件包括锥板构件，其中锥体和板的交点形成与两个撑条之间的裆部接合的凹口; 位于链条下方的固定手指，以及位于座椅支座上方的可动指状物。可移动指状物朝向座椅支撑件的移动是通过枢转构件和螺纹紧固构件实现的，每个紧固构件一端枢转地附接到主悬挂构件，其中紧固构件的未附接的螺纹端穿过枢转构件使得接合到紧固构件的螺纹旋钮经过枢转构件将导致旋钮压靠枢转构件。该压力使枢转构件旋转，将可动手指按压在座位上。旋钮的持续拧紧也将导致固定手指抵抗链条支柱的压力和锥形板构件与裆部的凹口抵接的运动，这三个连接构件对自行车车架的压力的组合锁定了自行车拖车牵引安全地到自行车。

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