发明名称 |
Fifth wheel for railway trailer hitch including a one-way gate |
摘要 |
A trailer hitch head or fifth wheel is disclosed including a pair of jaws which engage the kingpin of a trailer to hold the kingpin in place. The jaws are held in closed position by a locking member which is biased to the engaged position by at least one stiff spring. A linkage engages the locking member to move the locking member to open position against the bias of the stiff spring. The linkage may be manually or automatically activated. A one-way kingpin gate is located in the front portion of the fifth wheel. The linkage engages an actuator which automatically engages the one-way gate and pivots the same to open position allowing exit of the kingpin. Preferably the linkage is automatically activated by a bumper bar linkage in a tractor operated hitch, and also may be manually activated by the operator. Optionally, a manually operable handle is provided including a keeper or projection which engages a slot in the locking member in open position to hold the locking member in open position.
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申请公布号 |
US4225276(A) |
申请公布日期 |
1980.09.30 |
申请号 |
US19790009334 |
申请日期 |
1979.02.05 |
申请人 |
ACF INDUSTRIES, INC. |
发明人 |
STOLLER, PATRICIA S.;HAMMONDS, JAMES C.;VAN DYKE, RONALD D. |
分类号 |
B61D45/00;B62D53/12;(IPC1-7):B60D1/12;B60P7/08;F16B9/00 |
主分类号 |
B61D45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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