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:
Jan. 07, 2025
Filed:
Aug. 17, 2022
Applicant:
Nihon Spindle Manufacturing Co., Ltd., Hyogo, JP;
Inventor:
Yoshiaki Takada, Hyogo, JP;
Assignee:
Nihon Spindle Manufacturing Co., Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 19/04 (2006.01); B21D 22/16 (2006.01); B21D 41/04 (2006.01); B21H 1/20 (2006.01); B21K 21/12 (2006.01);
U.S. Cl.
CPC ...
B21D 22/16 (2013.01); B21D 19/046 (2013.01); B21D 41/04 (2013.01); B21H 1/20 (2013.01); B21K 21/12 (2013.01);
Abstract
A spinning device includes a flange forming section that, in a state where a base material having a tubular shape and including at least a large-diameter portion and a small-diameter portion is relatively rotated, forms a flange portion protruding in a direction away from a center axis by pressing the large-diameter portion in a center axis direction of the base material while contacting an outer peripheral portion of the small-diameter portion.