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Connection of tapered armature conductor to tapered commutator slot

  • US 4,757,601 A
  • Filed: 04/24/1985
  • Issued: 07/19/1988
  • Est. Priority Date: 04/24/1985
  • Status: Expired due to Term
First Claim
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1. A method of connecting the ends of upper and lower armature conductors to a commutator bar, the steps comprising, forming portions of the ends of said upper and lower armature conductors into a generally wedged-shaped configuration such that respective, opposed side surfaces of the formed conductor portions of both armature conductors are aligned and tapered radially inwardly at the same angle, then positioning a commutator bar that has a slot that is defined by a bottom surface and opposed internal tapered surfaces that are complementary to the tapered surfaces of the formed conductor portions such that the open end of the slot is aligned with the formed conductor portions, forcing the formed conductor portions into the slot to such a depth that a lower surface of the formed conductor portion of said lower conductor engages said bottom surface of said slot and to such a depth that there is an interference fit between the tapered surfaces of the formed conductor portions and the internal tapered surfaces of the slot whereby the formed conductor portions are taper locked to the internal walls of the slot, and then staking portions of the commutator bar located adjacent the outer end of the slot into engagement with the formed conductor portion of said upper conductor.

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