| 摘要 |
<p>PURPOSE:To enhance the effectiveness in assembly work by providing a housing with a guide groove stretching in the axial direction, equipping a swing plate with a guide pin sliding in this guide groove with shoes interposed, and magnetizing these shoes or the guide pin. CONSTITUTION:A guide pin 131 is equipped at the tip with a ball 131a, which is magnetized in advance, and is fixed to one end of a swing plate 13, and a guide groove 12 parallel with a drive shaft 6 is carved in a housing 2 on its crank chamber 5 side. The ball 131a is pinched by a pair of disc-shaped shoes 10, 11 made of magnetic material having spherical concave surfaces 10a, 11a matching with the ball 131a and slide surfaces 10b, 11b matching with the plane of the guide groove 12. When the front housing 2 is put from the driving shaft 6 side at assembling, the shoes 10, 11 are favorably accommodated in the guide groove 12 together with the ball 131a because the shoes 10, 11 are magnetically attached to the ball 131a on the guide pin 131 secured to the swing plate 13.</p> |
