Invention Grant
- Patent Title: Method of coating metal filament with rubber, method of producing cord, cord, rubber coating apparatus and cord producing apparatus
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Application No.: US12679136Application Date: 2008-09-19
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Publication No.: US09003849B2Publication Date: 2015-04-14
- Inventor: Hiroyuki Matsuo
- Applicant: Hiroyuki Matsuo
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-243968 20070920
- International Application: PCT/JP2008/067008 WO 20080919
- International Announcement: WO2009/038188 WO 20090326
- Main IPC: B21C23/22
- IPC: B21C23/22 ; D01D11/00 ; B29D30/38 ; D07B1/06 ; D07B7/14 ; B29C47/00 ; B29C47/02 ; B29K21/00 ; B29K105/08 ; B29L29/00 ; B29L30/00 ; B29C47/10 ; B29C47/28 ; B29C47/08 ; B29C47/06
Abstract:
An object of the present invention is to make it possible to provide a cord, in particular, a cord for reinforcing a rubber article in which rubber permeation properties are improved by coating filaments as constituents of the cord with rubber in a reliable and stable manner. The cord of the present invention is produced by, when the metal filament is guided to an extruder and extruded together with rubber from a mouthpiece of the extruder so that the metal filament is coated with the rubber, juxtaposing plural metal filaments in the mouthpiece and extruding the metal filaments together with rubber.
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