Invention Grant
- Patent Title: Roller hemming method and hemmed member
- Patent Title (中): 滚筒折边方法和卷边构件
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Application No.: US11905892Application Date: 2007-10-05
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Publication No.: US07934408B2Publication Date: 2011-05-03
- Inventor: Eisaku Hasegawa , Hiroshi Miwa , Katsumi Takeishi , Takeshi Nakamura
- Applicant: Eisaku Hasegawa , Hiroshi Miwa , Katsumi Takeishi , Takeshi Nakamura
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Arent Fox LLP
- Priority: JPP.2006-286771 20061020
- Main IPC: B21D7/02
- IPC: B21D7/02 ; B23P11/00
Abstract:
In a roller hemming method for folding a flange erected from a workpiece by pressing a working roller against the flange and moving the working roller relative to the flange, the flange is folded by: a first temporary bending step of bending a tip-side portion of the flange into a state that the tip-side portion is inclined; a second temporary bending step of bending a remaining, base-side portion of the flange into a state that the base-side portion is inclined; and a full bending step of bending the thus-bent flange into a final shape so that the flange is into contact with a flange-proximate portion.
Public/Granted literature
- US20080092618A1 Roller hemming method and hemmed member Public/Granted day:2008-04-24
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