The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2011
Filed:
Jun. 14, 2007
Norio Shirokoshi, Nagano-ken, JP;
Norio Shirokoshi, Nagano-ken, JP;
Harmonic AD, Inc., Nagano-ken, JP;
Abstract
In a fastening method of press-fitting and fixing an axial end section of a second-stage pinion () into a circular opening () of a first-stage planetary carrier (), first press-fitting external teeth (), which have an addendum circle larger than an addendum circle of the other pinion part and has a sharp tooth top, are generated through manufacturing of tooth-cutting at an outer circumferential section of the axial end portion of the second-stage pinion (). Then, a press-fit bore () that has a smaller diameter than the addendum circle of the press-fitting external teeth (), is formed at the circular opening () of the first-stage planetary carrier (). The press-fitting external teeth () are then press-fitted into the press-fit bore () so that tooth tops thereof cut into an inner circumference surface of the press-fit bore () to secure fastening strength between the second-stage pinion () and the first-stage planetary carrier ().