| 摘要 |
PURPOSE:To decrease the number of component parts, to reduce manufacturing cost and to improve workability by constituting a core by a laminated plate and using the inner-diameter end surface of the laminated plate as a boss section coupled with a shaft section. CONSTITUTION:The inner-diameter end surface 2 of a core 1 consisting of a laminated plate as a magnetic flux path is coupled at a direct point with a shaft section such as a crankshaft for an engine, and the inner-diameter end surface 2 is made to function as a boss section as a reinforcing member. The inner-diameter end surface 2 of the core 1 is formed to a tapered shape so as to be firmly fitted to the shaft section, and a recessed-section inner-diameter end surface 2a for a connection to a detent member is shaped.
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