| 摘要 |
A commutator is adapted for more consistent hot staking of the armature wire to the commutator hooks and easier armature winding with larger diameter wire by providing two commutator hooks on each of two diametrically opposed commutator bars and one hook on each of the others and spacing the commutator hooks circumferentially equally, so that there is a separate commutator hook for each armature wire needing commutator connection. The diametrically opposed commutator bars subtend the largest arcs to accommodate the two commutator hooks. The remainder of the commutator bars may subtend increasing arcs, progressing from one of the diametrically opposed bars to the other in opposite rotational directions, to spread the noise spectrum of brush noise during motor operation. Rotational orientation means for armature winding are provided in the form of indexing tabs projecting from the commutator bars having two hooks, in a direction axially opposite that of the hooks.
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