| 摘要 |
PROBLEM TO BE SOLVED: To provide a twin-screw opening/closing mechanism of scissors in which fatigue of an arm according to switching operation of a handle can be reduced by using repulsion of an elastic member, unevenness of the repulsion at the switching operation and failure hardly happen, and making compact is easy, and that is convenient to be carried.SOLUTION: An opening/closing mechanism of scissors S is such that a blade part 11 is provided in a point of application side and a handle part 12 is provided in a power point side in a pair of scissors pieces 1, 1 that are crossed as an X shape, and both scissors pieces 1, 1 are coupled by a first hinge part H1 between the blade part 11 and the handle part 12, wherein while the handle part 12 of the scissors piece 1 includes: an outside rod part 12a; an inside rod part 12b; and a folding part 12c, the inside rods 12b, 12b of the pair of scissors pieces 1, 1 are hinge connected at a tip side, and this hinge part H2 is located in a position that is a position on a center line C that connects a shut cutting edge and the first hinge part H1 and that is a side of the first hinge part H1 than a back and forth center of the shut handle part 12. |
