| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fastening structure for fastening a rotor to a shaft which materializes fastening and unfastening by a simple operation, improvement of mounting accuracy, and reduction of a machining cost of a rotor. <P>SOLUTION: A fastening member 12 is provided with a male screw part 12a and a plane part (a tool engaging part) 12e on the outer periphery, and with a rim part 12d on the inner periphery. A taper sleeve 13 is provided on the inner periphery with a shaft hole 13e in which a shaft 2 is fitted, and on the outer periphery with a conical hole 1a of a sprocket 1, a conical outer peripheral surface 13a which is complementarily conical, a flange part 13b and a cylindrical outer peripheral surface 13c with a ring groove 13d for a retaining ring. An axial slit 13f is formed in a part having the conical outer peripheral surface 13a. A fastening tool 11 is assembled so that a side surface of the flange part 13b and a side surface of the retaining ring 14 are opposed to both side surfaces of the rim part 12d. By screwing the male screw part 12a in a female screw part 1b of the sprocket 1, the part having the conical outer peripheral surface 13a is pressed between the conical hole 1a and the outer peripheral surface of the shaft 2, thereby fastening the sprocket 1 to the shaft 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
