| 摘要 |
A push-arm hitching claw comprises a claw component proper equipped with a hitching jaw, a slide (4) set in it to lock a ball joint into the jaw, a spring-loaded operating lever (2) joined to the end of the slide, and locking devices to prevent opening due to loading. The aforesaid locking devices include a beak (7) and stop (8) formed in the operating lever and claw component. The beak and stop are arranged so that when the operating lever turns, the beak turns past the stop, but when the slide rises, the beak strikes the stop, preventing the slide from opening further. An opening is provided in the operating lever, through which a protrusion (3) of the claw component extends, and the stop is formed from the upper edge of a hole (10) of a protrusion (3). The beak is formed in the edge of an opening (11) at the hole.
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