| 摘要 |
<p>The invention relates to a slot machine for detachably interlocking two devices, such as shopping trolleys. The machine comprises a casing (1) to which a locking latch (3) is mounted turnably, and an abutment (2). The casing and the abutment are attached to different devices. A passage (8) provided for a coin (7) in the casing is so dimensioned that when the coin is inserted into it, it turns the latch (3) from a locking position to a releasing position. The abutment (2) turns the latch (3) to a closing position.</p> |
