| 摘要 |
<p>A mop thread-squeezing apparatus capable of compressing mop thread sufficiently without deteriorating the operability thereof, by applying a great pressing force to the mop thread. A pinion (20) fixed to a driving shaft (16) and a rack (30) supporting one end of a squeezing plate are installed on each of left and right side plates (50a) of a squeezing tank (12). A radius (O-C) of a pitch circle (23) of the pinion (20) at a point (C) of contact between the pitch circle (23) of the pinion (20) and a pitch line (33) of the rack (30) becomes gradually smaller in a region (A) corresponding to a former half time period of a lever operation and is almost constant in a region (B) corresponding to a latter half time period of the lever operation. In the former half time period of the lever operation, a squeezing plate (40) moves downward rapidly and thus the amount of the downward movement thereof is great, whereas in the latter half time period of the lever operation, the radius (O-C) of the pitch circle (23) becomes smaller and thus the pressing force of the squeezing plate (40) becomes greater. <IMAGE></p> |
