| 摘要 |
<p>A laminated core (10) is constructed by pressing a thin sheet of magnetic material to form a number of core pieces (11-15) by punching operation, and inserting crimping projections (16, 20) formed on the core pieces (13, 15) into through-going engagement holes (19, 23) formed in the core pieces (11-14) so as to connect and laminate them. Provided under the core pieces (13, 15) having the crimping projections (16, 20) and disposed in different positions as seen from above are at least two core piece (11, 12) and core pieces (13, 14) having through-going engagement holes (16, 23). And, the crimping projections (16, 20) formed on the core pieces (13, 15) have a projecting length that is at least twice the thickness of the core pieces and are fitted in the through-going engagement holes (16, 23), thereby effecting the integration of the vertically laminated core pieces (11-15).</p> |
