G - Physics – 07 – F
Patent
G - Physics
07
F
70/0.2, 232/0.5
G07F 5/00 (2006.01) G07F 7/06 (2006.01) G07F 17/12 (2006.01)
Patent
CA 1227652
A coin-operated lock for a trolley system, including especially shopping and luggage trolleys. ABSTRACT OF THE DISCLOSURE A coin-operated lock for a trolley system, especially shopping trolleys and luggage trolleys, which lock is adapted for mounting on a trolley. The coin-operated lock is arranged for release of a trolley when a coin is inserted as well as for repayment of the amount paid when the trolley is returned. The lock has two blockable keyholes, either of which is arranged for acceptance of a separate key, one of which is fixed to the same trolley as that on which the lock is mounted. The lock is further arranged in such a way that when a coin is inserted, one keyhole is released for acceptance and securing of the said key fixed to the same trolley, that the other keyhole secures a key belonging to another trolley or a coupling unit, that the other keyhole is released for release of the other key when the said key fixed to the same trolley is inserted in the former keyhole, and that the former keyhole is released for release of the said key fixed to the same trolley and secured therein and for return of the coin when the other key is inserted in the other keyhole. The keys (4) designed for insertion in keyholes (2 and 3) have interacting blocking means (2) arranged as codification units (13, 14, 15, 16) which only permit insertion and withdrawal respectively of a key if the code of this key fits together with the code of the other key so that only keys fitting together can be moved relative to each other for insertion and withdrawal purposes respectively. The use of different codes for the trolleys of different enterprises can thus prevent trolleys from different enterprises being coupled together. Fig. 2.
390890
Catena-Locks A/s
Sim & Mcburney
LandOfFree
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