Patent ID: 7254881

Claim:
A method for manufacturing an armature of a rotation apparatus, comprising: preparing a core having a plurality of radially extending teeth, wherein a coil is wound about each tooth; preparing a commutator, which has a plurality of segments arranged along the circumferential direction of the commutator, wherein the segments include first segments, which are not connected to the coils, and second segments, which are connected to the coils; connecting each of a plurality of short-circuit members to three of the segment, wherein each short-circuit member has two opposite ends and a center portion between the two opposite ends, the center portion being connected to one of the first segments and the two opposite ends being connected to two of the second segments that are spaced from the one first segment in the opposite directions along the circumference of the commutator; and connecting each end of each coil to one of the second segments after connecting the short-circuit members to the corresponding segments.