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. 28, 2004
Filed:
Sep. 09, 2002
Yamaha Corporation, , JP;
Abstract
One object of the present invention is to provide a production method of a steering wheel in which divided bodies are securely integrated into a single unit without using adhesive. In order to achieve the object, the present invention provides a production method of a steering wheel comprising the steps of: a) providing a plurality of divided bodies , each of which comprises a surface material and a plastic layer provided on the inside of said surface material ; b) forming an outer shell by integrally welding said plastic layers of said divided bodies ; c) providing a core metal to be arranged in said outer shell ; and d) filling plastic between said outer shell and said core metal
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