| 摘要 |
The tweezers (1) have a rigid closing ring (9) sliding without friction between the back end (5) of the tweezers, where the two legs of the tweezers are joined together, and the front (4) of the tweezers, where the tips (3) of the tweezers are located. Beyond the length over which it slides without friction, the ring (9) can slide further forward, overcoming friction and closing the tips (3) of the tweezers. It can also slide backwards beyond the frictionless length, until it either encounters a stop or experiences friction. (Figures 1 + 2) |
