Rotor of alternator mounted on vehicle

Info

Patent number: RE36038
Type: Grant
Filed: May 22, 1996
Date of Patent: Jan 12, 1999
Assignee: Denso Corporation (Kariya)
Inventors: Shigenobu Nakamura (Chiryu), Takayasu Nimura (Nagoya), Toshiaki Hotta (Oobu)
Primary Examiner: Clayton E. LaBalle
Law Firm: Cushman Darby & Cushman Intellectual Property Group of Pillsbury Madison & Sutro LLP
Application Number: 8/651,481

Claims

2. A rotor construction according to claim 1, wherein outer peripheries of gaps between the meshing claws are smaller than inner peripheries and said spacers comprise wedges press-fitted into said gaps.

3. A rotor construction according to claim 1, wherein said spacers are constituted by hollow tubular members.

4. A rotor construction according to claim 1, wherein flanges for retaining said spacers are formed on the circumferential ends of the outer peripheral surface of each of said pole core claws.

5. A rotor construction according to claim 1, wherein a plurality of said spacers are formed integrally to form of a ring having convexities and concavities in its outer peripheral surface.

6. A rotor construction according to claim 5, wherein said ring is contacted by side surfaces and inner peripheral surfaces of said claws of said pole cores.

7. A rotor construction according to claim 6, wherein said ring is shaped integrally from a plastic and is held with a tightening margin between inner peripheral surfaces of said claws and the outer peripheral surface of said exciting coil..Iadd.

8. A rotor construction according to claim 1, wherein the outer peripheral portions of said spacer ring are curved substantially corresponding to outer peripheral surfaces of said pole core claws..Iaddend..Iadd.9. A rotor construction according to claim 1, wherein:

said spacers have a plurality of outer peripheral portions disposed between said adjacent pole core claws, with a plurality of connecting portions connecting adjacent outer peripheral portions; and

said outer peripheral portions and said connecting portions are made integrally with each other so that said outer peripheral portions and said connecting portions make a ring-shaped spacer..Iaddend..Iadd.10. A rotor construction according to claim 9, wherein the outer peripheral portions of said spacer ring are curved substantially corresponding to outer peripheral surfaces of said pole core claws..Iaddend..Iadd.11. A rotor construction according to claim 9, wherein said spacer ring comprises a plurality of side portions contacting side surfaces of said pole core claws..Iaddend..Iadd.12. A rotor construction according to claim 9, wherein at least part of said connecting portions contact an inner peripheral surface of said pole core claws..Iaddend.