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. 25, 2006
Filed:
Jul. 22, 2003
Kotoyoshi Murakami, Hiroshima, JP;
Kotoyoshi Murakami, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
While at least one of first and second toolsandof a junction toolis rotated, a workpiece W made of a plurality of plate materials Wand Wsuperimposed in their thickness directions is nipped between the first and second tools and joined at points. The first toolis provided with a pinprotruding from its distal end surfacealong a junction axis X. The second toolis provided with a depressionwhich is depressed at its distal end surfacealong the junction axis X. By the first pinof the first tooland the depressionof the second tool, the superimposed surface Wof the softened workpiece W is caulked in the direction of the junction axis X. Further, plastic flow is generated within the workpiece W so as to agitate the vicinity of the superimposed surface W