FLEXIBLE SHAFT-COUPLING

PROBLEM TO BE SOLVED: To provide a maintenance-free flexible shaft-coupling which has a small mass, a high allowance for eccentricity without backlash, and a low count of constitutional components. SOLUTION: The flexible shaft-coupling includes a cylindrical hub body, two or more blade supports extending from the hub body in the radial direction, first and second coupling bodies 11, 31 respectively comprising two or more blades. In each blade, an elastically deforming section is extended along the peripheral face of the hub body from the base of the blade protruding axially from a blade support, and the tip end of the elastically deforming section is constituted as a fastening part. A second blade 41 of the send coupling body 31 is inserted in the inside of a first blade 21 of the first coupling 11. The outside periphery of fastening part 44 of the second blade 41 is brought into contact with the inside periphery of a fastening part 24 protruding in the internal diameter side of the first blade 21. The coupling bodies 11, 13 are jointed in the manner that the first blade 21 and the second blade 41 extend opposite to each other in the peripheral direction with the fastening parts 24, 44 respectively as centers of the blades 21, 41. COPYRIGHT: (C)2004,JPO