Remote operated trailer coupling pin - has slotted tag engaged by drive cam to lift pin against spring pressure

摘要

A securing bolts (3) for a drawer coupling is spring loaded (12) into the closed position by an upper spring and has a lateral tag (4) with a profiled slot (5) engaged by a drive cam (7) pivoted in the coupling housing. The cam raises the bolt against spring pressure. The cam drive is a remote cable or lever link to the tractor hitch so that it can be operated without the driver leaving his cab. The tag has a slot profile such that the bolt can be set in the raised position without fear of it tripping shut.