Tow hook coupling, has locking part movably secured to cap so that they can adopt position where they can be moved in and out of cavity in cap

摘要

The locking part is movably secured to the cap-shaped receiving part, so that they can both be moved between a first position where the hook head (3) extends through the cavity in the cap and can be moved back out of the cavity, and a second position where the head can not extend through the cavity or be moved back out of it. The cap receives at least part of the hook (1) and the locking part has a cavity with a first section that is smaller than the hook head and a second section which is larger than the hook head.