| 摘要 |
PROBLEM TO BE SOLVED: To obtain a rotation preventing structure capable of preventing a resin tube from rotational deviation. SOLUTION: When a resin tube 1 having a corrugated shape partially is laid around in a bent condition through a clamp, a ring-shaped recess 3 furnished with a diametrically enlarged portion 3a is formed on the peripheral surface of resin tube 1 free of corrugated shape while the inner surface of clamp embracing the resin tube 1 is furnished with a ribbed wall 7 to be fitted in the ring- shaped recess 3 and a receptacle hole 8 to receive the diametrically enlarged portion 3a of the recess 3, and thereby the ribbed wall 7 on the clamp side is fitted into the recess 3 and also the diametrically enlarged portion 3a is received by the receptacle hole 8 on the clamp side, and therefore, if the clamp itself is fixed to the specified position with this condition held, it is possible to prevent the resin tube 1 from rotational deviation certainly.
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