| 摘要 |
PURPOSE:To make complicated work unnecessary so as to ged rid of the removal and the exchange of a broken shear pin by fixedly providing a piece by means of inserting a shear pin into a through hole engraved in a flange surface and making the piece put close to a transmission plate fixedly provided on a rotating shaft end surface. CONSTITUTION:A boss 2 is fixedly fitted integrally to the rotating shaft 1a of an electric motor 1, and a sprocket 4 is fixedly fitted to its outside. In addition, a flange 4a is fixedly provided on the shaft end side of the boss of the sprocket 4. A shear pin 10 and a bush 11 are engaged with a pin hole where an approximately triangle-shaped piece 9 is projected from the shaft end surface of this flange 4a. Complicated work is unnecessary in this way so as to ged rid of the removal and the exchange of broken shear pin. |
