| 摘要 |
An automatic coupler of the Janney-type has a guide horn rigidly connected to the coupling head below the knuckle and extends forwardly and laterally with respect to the knuckle. The guide horn is shaped to have on its upper face a plurality of guide and support surfaces. A second plurality of guide and support surfaces are formed on the underside of the rigid catch jaw which is spaced horizontally from the pivotable knuckle. The guide surfaces on the guide horn and underside of the jaw engage respectively guide surfaces on the underside of the jaw and a guide horn of a similar coupler when such couplers are in the coupled position so as to prevent relative vertical displacement of the coupled coupling heads.
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