发明名称 Method for manufacturing a stator of a stepping motor
摘要 <p>A method for manufacturing a stator of a stepping motor comprises the steps of carrying out a half-pierce and push-back process to a frame plate (10) to make an area in which comb teeth (16) are to be formed and an area to be blanked out readily separable, carrying out a blanking process to separate the blanked piece (20) from the comb teeth (16), bending the comb teeth to a predetermined angle and collapsing the comb teeth to make the thicknesses of the comb teeth uniform; and bending the comb teeth at right angle to an outer periphery of the frame piece. <IMAGE></p>
申请公布号 EP0614261(B1) 申请公布日期 1997.06.04
申请号 EP19940103188 申请日期 1994.03.03
申请人 CANON SEIKI KABUSHIKI KAISHA;CANON KABUSHIKI KAISHA 发明人 TSURUYA, YOKU
分类号 B21D28/10;H02K15/02;(IPC1-7):H02K15/02 主分类号 B21D28/10
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