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. 20, 2010
Filed:
Oct. 30, 2007
Masanobu Ichikawa, Toyota, JP;
Tatsuya Ito, Toyota, JP;
Masanobu Ichikawa, Toyota, JP;
Tatsuya Ito, Toyota, JP;
Toyoda Iron Works Co., Ltd., Toyota-shi, Aichi-ken, JP;
Abstract
The present invention provides a plate-shaped workpiece positioning structure for hot press forming that, upon executing a hot press forming of a heated plate-shaped workpiece (), positions the plate-shaped workpiece relative to a pair of press dies (). The positioning structure includes (a) a first positioning opening () and (b) a second positioning openings (). The first positioning opening is arranged in a center part of the plate-shaped workpiece, and engages with a first positioning pin () provided on one () of the pair of press dies to position the plate-shaped workpiece. The second positioning openings are arranged between the first positioning opening and a predetermined outer peripheral parts () of the plate-shaped workpiece, and are formed in an elongate shape that extends along a line connecting the first positioning opening and the predetermined outer peripheral part of the plate-shaped workpiece. The second positioning openings engage with a second positioning pins () provided on one () of the pair of press dies. Thus, the plate-shaped workpiece is positioned in a circumferential direction about the first positioning opening of the plate-shaped workpiece. Additionally, the plate-shaped workpiece can contractionally deform toward the first positioning opening upon executing the hot press forming of the heated plate-shaped workpiece.