Suitcase with wheels - has wheel spindles extended by belt coupled to handle

摘要

The suitcase has extensible wheels for ease of handling. Extension is by a handle (1) on it coupled by a belt (2) running round guides (3, 4) to the wheel spindles. This causes the spindles to screw in and out, bringing the wheels (5) into positions clear of the suitcase to the sides. They are returned to the retracted position by springs.