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:
Feb. 17, 2015
Filed:
Oct. 25, 2010
Yoji Kimura, Kiyosu, JP;
Kyohei Sato, Kiyosu, JP;
Hiroshi Yamaguchi, Kiyosu, JP;
Yukio Miura, Kiyosu, JP;
Yoji Kimura, Kiyosu, JP;
Kyohei Sato, Kiyosu, JP;
Hiroshi Yamaguchi, Kiyosu, JP;
Yukio Miura, Kiyosu, JP;
Toyoda Gosei Co., Ltd., Aichi-pref., JP;
Abstract
According to a fabrication method, an extruded tubular member HA is formed, using an extrusion diewhich has an extrusion orificehaving an opening-side inner circumferential surfacehaving a circular section and a core-side diedisposed concentrically with the extrusion orifice, by extruding a tube material through an extrusion passagedefined between the opening-side inner circumferential surfaceand a core-side outer circumferential surfaceof the core-side die. As this occurs, a bent configuration is given to the extruded tubular member HA by changing contact areas where the tube material contacts the opening-side inner circumferential surfaceand the core-side outer circumferential surfacein a circumferential direction so as to set velocities at which the tube material is extruded to different values in the circumferential direction by controlling the position of the core diein rotating and axial directions relative to the extrusion orifice