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:
Jul. 06, 1999
Filed:
Aug. 26, 1996
Noritaka Miyamoto, Toyota, JP;
Masazumi Onishi, Toyota, JP;
Yasuyuki Fujiwara, Aichi-ken, JP;
Toshiaki Tanaka, Nagoya, JP;
Shintaro Igarashi, Toyota, JP;
Atsushi Danno, Nagoya, JP;
Kenichi Yamaguchi, Toyama, JP;
Shinichi Nagamori, Toyama, JP;
Toyota Jidosh Kabushiki Kaisha, Toyota, JP;
Nachi-Fujikoshi Corporation, Toyama, JP;
Abstract
A multistage gear-rolling apparatus of the present invention comprises a roller squeezing apparatus including a roughing roller die and a finishing roller die disposed coaxially and connected in series in an axial direction of said roughing roller die. The roughing roller die is used for carrying out a hot rough-rolling step. The finishing roller die is used for a warm finish-rolling step. Thus, immediately after the hot rough-rolling step, the warm finish-rolling step can be carried out without a reset of workpiece.