| 摘要 |
PURPOSE:To make it unnecessary to control knock pins or the like by providing a cover core with projections which are opposite to positioning holes on a flywheel so as to secure the concentricity. CONSTITUTION:On both sides of a diaphragm spring 16, pivot rings 17 are arranged, which are embraced by nails 18 provided on the circumference of a cover core 13 so as to support the diaphragm spring 16. The cover core 13 has cylindrical projections 19 formed by press-barring working at three places on its outer circumference, and these projections are fitted into the positioning holes 20 on a flywheel 11. Accordingly, the concentricity of the cover core 13 and the flywheel 11 can be achieved, and the control of knock pins or the like becomes unnecessary.
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