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. 04, 1987
Filed:
Dec. 19, 1985
Akira Asari, Osaka, JP;
Takashige Yamamura, Kobe, JP;
Shigeo Hattori, Kobe, JP;
Tsuneya Ueno, Hyogo, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
A method for manufacturing an integrated wheel for a vehicle, on which a tire is mounted, by a combination of die forging work, press spreading work and rotative ironing work, the method including the steps of integrally molding by die forging work a disc of the wheel and a thick tubular portion whose outer peripheral surface is made approximately parallel to the axial direction of the wheel through the root portion enlarged in the outer peripheral edge of the disc in the diametrically outward direction; performing the work for spreading both axial end edges of the thick tube portion in the diametrically outward direction by means of a press and work for pressing a rotative ironing tool against the axial intermediate portion of the thick tubular portion carried out after or prior to said spreading step; allowing the material to escape in a direction opposite the travelling direction of the rotative ironing tool in the subsequent step during pressing; and thereafter pressing the rotative ironing tool against the pressed portion to move the tool in the other axial direction by the pressed portion for rotative ironing to draw the other axial portion.