| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive power transmission device having a pulley provided with a female screw part installed in a disk part. <P>SOLUTION: The power transmission device includes the pulley 6 made of a sheet metal, and an elastic member 21 connected to the disk part 8 of the pulley 6. A connection part for connecting the disk part 8 and the elastic part 21 is formed of a plurality of fixing screws 11, a nut 24 for each fixing screw 11, and a synthetic resin made nut holder 25 for holing the nut 24. The nut holder 25 includes an annular nut holder body 26, a nut holder 28 for holding the nut 24 in such a state in which the rotation is restricted, and a mounting part 29 for supporting the nut holder body 26 on the disk part 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
