| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the durability against the turn by forming a bush to be attached to a shat of a turning support shaft of a synthetic resin, and tight fitting the shaft of large diameter into a bush of small diameter. SOLUTION: A shaft 3 is fixed to an end part of a bracket 2 to support a turning body, and the shaft 3 is press fitted to a bush (a, b) fitted to a bracket 1 supported by a base body. A metal mesh in which wires having appropriate elasticity and rigidity are combined in a lattice shape is built in the bush 4, or the bush is formed of a synthetic resin in which an electrically conductive material powder is blended and kneaded. A flange body 4b is integrated with each end of a cylindrical part 4a in which the shaft 3 is inserted, the flange body 4b is inserted opposite thereto between washers 8a, 8b to be intehgratedly turned with the shaft 3, and the washers 8a, 8b and the flange body 4b are fixed to each other by caulking. The defective sliding function caused by the insufficient slide in the turning direction is eliminated while ensuring the energization property between the brackets 1, 2, and members are prevented from being damaged.</p> |
