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:
Nov. 04, 2014
Filed:
Aug. 16, 2011
Daisuke Iwata, Nishio, JP;
Masanori Sato, Nagoya, JP;
Masayuki Maki, Nisshin, JP;
Yohei Mukaida, Okazaki, JP;
Daisuke Iwata, Nishio, JP;
Masanori Sato, Nagoya, JP;
Masayuki Maki, Nisshin, JP;
Yohei Mukaida, Okazaki, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
A bossed disc-like member manufacturing method and apparatus with which it is possible to simply form a boss portion with a desired height. The method includes a level difference formation step that moves a second portion, which is positioned on the inner peripheral side of a first portion in a radial direction of a disc-like blank, relative to the first portion in a first direction which is the thickness direction of the blank, thus forming a level difference between the first portion and the second portion. A conical portion formation step moves the second portion relative to the first portion in a second direction opposite to the first direction, eliminating the level difference. In this manner, a conical portion is formed in the second direction on the inner side of the second portion; and a burring step performs a burring process on the conical portion, thus forming the boss portion.