| 摘要 |
PROBLEM TO BE SOLVED: To provide a hinge never contaminating a clean room with metal by inserting a flanged resin bush to the circumference of a shaft inserted to one blade of a hinge, and a resin washer to the circumference of the shaft inserted to the other blade. SOLUTION: A shaft is fixed to a blade 1, and blades 1, 2 have holes 4, 5 for inserting the shaft. A flanged resin bush 6 is inserted and fixed to the hole 5 of the blade 2, and a resin washer 7 is inserted to the shaft and adhesively fixed to the blade 1. The resin bush 6 and the resin washer 7 may be provided in a plurality of positions, and also constituted so that the strengths are differed to each other. The resin bush 6 and the resin washer 7 may be formed of an oil-resin, and a metallic washer may be inserted between the resin bush 6 and the resin washer 7. According to this, when the blades 1, 2 are rotated about the shaft, the contact between metals can be eliminated. Thus, generation of metal powder by metal wear can be eliminated to eliminate the metal contamination of a clean room.
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