Coupling plant for supermarket coin access trolley - has link that extends to latch in coupled position and released by coin insertion

摘要

A coupling element used to secure one supermarket type trolley to another has a link (1) with a chain loop (6) that held in a retracted position by a spring (2). Latching of the unit with the coin release mechanism is provided by extending the link against the spring action. The latch (7) is located at the bottom end. Coins entered into the unit release the latch and allow the link to retract and so releases the trolley. ADVANTAGE - Provides flexible link between units.