| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary shaft of a robot hand, micro-machine, toy, interior, and display and the like, scissors, catching tool, and butterfly nut, which are used for a location where hands don't reach, a hazardous object, and an unsanitary object, by making use of a rotary shaft structure which is formed by two shafts applicable to a curve and characterized by a long shaft in which a tangential line of two straight round bar shafts is regarded as a center or fulcrum. SOLUTION: In a rotary shaft structure, two straight round bar shafts having elasticity are twisted from one quarter to three revolutions within an elastic deformation in proportion to a length and direction of an objective shaft, and the straight round bar shafts are revolved in a reverse direction of each other in a structure which bearings 4 are arranged on both ends of a holder 3 while each shaft is rolled and touched each other.
|
