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:
Aug. 03, 1999
Filed:
Mar. 14, 1997
Nissan Motor Co., Ltd., Yokehama, JP;
Abstract
A rolling process for producing a spur gear. The process comprises the following steps: (a) bringing gear teeth of a generally wheel-shaped toothed tool into press contact with a peripheral portion of a generally wheel-shaped gear material at which portion gear teeth are to be formed; and (b) bringing gear teeth of a generally wheel-shaped backup roller into press contact with the peripheral portion of the gear material in course of formation of the gear teeth under rolling so that the gear teeth of the backup roller are to be in mesh with the gear teeth formed at the peripheral portion of the gear material under the action of the toothed tool. The backup roller has an inclined section for forming a chamfered portion of each tooth of the spur gear to be produced. The inclined section is located at a position corresponding to the chamfered portion of the spur gear.