| 摘要 |
A locking system is employed to automatically secure the roller wringer of a mop in a locked, stored position on the mop. The mop itself has a cleaning head consisting of a plurality of fluid absorbent material strands connected to a handle. A wringer rod is connected at one end to a slideable, manually operated sleeve located around the handle. The rod is pivotally connected at its other end to the roller wringer which is of ringed or closed polygon configuration, taking its shape from a flexibly biased support member. As the sleeve is manually pushed down the handle, the roller wringer is forced over the mop head strands, causing the support member and rollers to expand around the strands. When the roller wringer has reached the end of the mop head strands, it pivots up. Manual movement of the sleeve back up the handle towards the user draws the roller wringer over the mop head and back to the lower end of the handle. The locking system consists of a wringer shroud and a stop piece which is connected to the roller wringer and pivotally connected to the wringer rod. As the wringer rod is withdrawn towards the user, the stop piece contacts the edge of the shroud, causing the wringer to pivot towards the handle and through an opening in the support member, repositioning the wringer around the handle and within the shroud.
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