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公开(公告)号：US3876241A
公开(公告)日：1975-04-08
申请号：US47611174
申请日：1974-06-03
申请人： AMERCO INC
发明人： ABROMAVAGE JOHN C , RYDEN JAMES W
摘要： A load-damping motor-vehicle frame-type trailer hitch attachable at its forward end to a vehicle frame and at its rearward end to the automobile bumper, with means to allow relative motion between the two points of connection. The hitch includes a compression means which absorbs forward thrust loads in advance of placing a load upon the bumper, in the case of conventional bumpers, or, in the case of an energy absorbing bumper, adds energy absorption capability, allows return of the bumper to its original position without damage to either the bumper or hitch and without degradation of the energy absorption characteristics of the combined mechanisms. The hitch is operable with or without other load damping devices, and within both returnable and nonreturnable ranges of operation. The hitch is particularly adaptable to use with energy absorption bumpers.
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公开(公告)号：US3910604A
公开(公告)日：1975-10-07
申请号：US50493574
申请日：1974-09-11
申请人： AMERCO INC
发明人： ABROMAVAGE JOHN C , RYDEN JAMES W
摘要： Vehicle hitches of the type having a horizontal hitch bar supporting a medial coupling ball for pulling rental and other utility trailers. Particularly, a weight equalizing device independently pivoted with respect to the hitch bar and extending from the trailer tongue to the automobile frame so as to transfer load to the towing vehicle automobile frame. The device is characterized by a tension plate supported adjacent the the hitch bar and having a tension bar extending aft to the trailer tongue and a pair of coupling chains extending forwardly to engage the auto frame. The device may be used to adjust the trailer tongue level. In addition, the device also provides sway control.
摘要翻译： 具有支撑用于拉出租赁和其他实用拖车的中间联接球的水平牵引杆的类型的车辆搭扣。 特别地，重量均衡装置相对于牵引杆独立地枢转并从拖车舌部延伸到汽车框架，以将载荷传递到牵引车辆汽车框架。 该装置的特征在于一个拉紧板，该张紧板支撑在悬挂杆附近，并且具有一个向后延伸到拖车舌部的拉杆和一对向前延伸的接合链以与自动框架接合。 该装置可用于调节拖车舌头水平。 此外，该设备还提供摇摆控制。
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