Coin-operated lock for trolleys used in supermarkets or as luggage trolleys at airports or railway stations, with facility to limit length of stack of trolleys

摘要

The locking mechanism for the coin-operated lock co-operates with a key (2) attached to another trolley, and with a key (4) connected by a flexible link to a fixed rail forming a boundary rail for the file of stored trolleys. The user's deposit coin is liberated by insertion of the keys.