Back to results
US 6,713,931 B2Granted
Cylindrical commutator securely fixed to mold resin
AssigneeSugiyama Seisakusho Co., Ltd.
InventorsYoshihisa Kamiya, Hiroyuki Kato, Yoshiyasu Kogure, Tsutomu Ishiwata, Gene Larson
Life of this patent
Estimating the term…
Abstract
A cylindrical commutator is provided with a plurality of segments arranged at equal intervals around an axis, each of which is provided with a groove on an inner surface thereof and one or more anchors extending from edges of the groove. The grooves and the anchors are extended over substantially the total length of the segments and respectively have end steps and end edges at ends near the hooks, or the anchors can be formed in pair and the pair of anchors are connected with each other at the ends near the hooks.
Claims2
A cylindrical commutator comprising:
- plurality of mutually insulated segments arranged at equal intervals on the external periphery of a cylindrical surface, each of the segments including a hook for line connection extending from one end thereof, groove formed on an inner surface thereof and a pair of anchors on both sides of the groove extending over substantially the total length of the segment, the pair of anchors being connected with each other at the groove on the side near the hooks and slanted to the groove at the other end of the groove;
- a mold resin for fixing the segments in a cylindrical shape, the anchors being embedded therein;
- and
- undercuts formed on the mold resin for seperating the segments.
1 more element
Dependencies are inferred from the claim text.