| 摘要 |
A continuous strip of conductive material, for example copper, bronze, aluminum or the like is provided having, in alternate sections, the cross-sectional shape of commutator segments (channel-shaped, T-shaped, L-shaped, C-shaped), and rod-like connecting strips, preferably half, or less the thickness of the commutator segments. A ring-shaped mold is provided, having segmental steel inserts separated by separator strips of blued steel; the steel inserts form guide ways for the segments, which are pushed in, severed at the far end of the connecting strip, and the mold is then indexed to the next guide way position accepting a commutator segment from the continuous strip. The commutator ring is then secured together by molding plastic in the spaces between the commutator segments, as known, or are otherwise locked together for example by means of insulating spacer shims inserted between the segments, and the mold pressed together.
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