| 摘要 |
PURPOSE:To secure the accuracy in high rotating by providing the shaft insertion holes whose center lines are coincident being opened at both sides and providing the joint main body whose both side parts are formed as an elastic chuck part and a pair of the fasteners contracting this shaft insertion hole. CONSTITUTION:An elastic chuck part 30 is formed at both sides of a joint main body 20. Shafts 2, 5 to be inserted to a shaft insertion hole 21 of a joint main body 20 are inserted and fastened adequately by a fastener 40. With further fastening by the fastener 40, each chuck main body 31 is uniformly displaced elastically along the diameter direction of the shaft insertion hole 21 after a tapered face part 44 is abutted on an elastic chuck part 30 to contract gradually the corresponding shaft insertion hole 21. The chuck main body 31 then becomes to hold by fastening in order the shafts 2, 5 eccentrically inserted into the shaft insertion hole 21 through centering with the center line of the shaft insertion hole 21 as the reference. Both shafts 2, 5 are linked without any eccentricity. |
