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:
Sep. 06, 2005
Filed:
Oct. 15, 2003
Kenichi Kusunoki, Toyota, JP;
Masanao Shiomi, Toyota, JP;
Naoki Yoshioka, Okazaki, JP;
Araco Kabushiki Kaisha, , JP;
Abstract
By using a hydraulic forming device, a metal plate bodyis placed on a support sectionwith a hollow sectionformed on a lower diefilled with hydraulic fluid A. Subsequently, a blank holderis lowered to clamp the peripheral edge section of the placed metal plate bodywith the support section. Then, the upper dieis lowered relative to the lower dieto pressedly deform the central section of the metal plate bodyand to compress the hydraulic fluid A to increase the fluid pressure. A rib-like convex sectionis transferred onto the metal plate bodyby the increased fluid pressure of the hydraulic fluid A and a formed section. Further, the fluid pressure of the hydraulic fluid A is kept for a predetermined time. Then, the increased fluid pressure of the hydraulic fluid A is released.