| 摘要 |
PCT No. PCT/DK93/00141 Sec. 371 Date Oct. 13, 1994 Sec. 102(e) Date Oct. 13, 1994 PCT Filed Apr. 28, 1993 PCT Pub. No. WO93/22750 PCT Pub. Date Nov. 11, 1993.A coin-deposit lock to be placed on a trolley being part of a row of mutually connected e.g. shopping trolleys or baggage trolleys comprises a main slide being longitudinally slidable against the force from a spring and a measuring slide likewise longitudinally slidable against the force from a second spring. Each of the slides has a transverse central aperture, and when a coin of a certain value (diameter) has been inserted between the slides, the apertures are mutually aligned. Upon insertion of a key belonging to the lock in a first key opening in the lock, the slides can be moved to a position in which a latching finger on a pivotable release member engages in the mutually aligned apertures and retains the slides and the coin between them in a withdrawn position. At the same time, the release member pivots to a position, in which a second latching finger on it frees a second key associated with a previous trolley in the row thus freeing the trolley from the row. |
