Invention Application
- Patent Title: PRESS-WORKING METHOD, AND PRESS-WORKING APPARATUS
- Patent Title (中): 新闻工作方法和新闻工作装置
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Application No.: US12445527Application Date: 2007-10-15
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Publication No.: US20100018280A1Publication Date: 2010-01-28
- Inventor: Shingo Maeda , Hideo Meguri , Seiji Takahashi , Yuichi Nagai
- Applicant: Shingo Maeda , Hideo Meguri , Seiji Takahashi , Yuichi Nagai
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2006-282993 20061017; JP2006-282994 20061017; JP2006-282995 20061017
- International Application: PCT/JP2007/070104 WO 20071015
- Main IPC: B21D22/00
- IPC: B21D22/00

Abstract:
A press-working apparatus capable of forming a clear character line. The press-working apparatus forms a product having a character line. The press-working apparatus comprises an upper die and a lower die arranged across a steel sheet, an upper die mechanism for moving the upper die toward and away from the lower die, a first holder and a second holder for clamping the steel sheet and applying an unwrinkling force to the same, and a control unit for controlling the upper die mechanism and the first holder. The upper die is divided on the character line of the product into a first upper die and a second upper die. The control unit makes the unwrinkling force by the first holder stronger than that by the second holder, so that the steel sheet is press-worked by the second upper die and then by the first upper die.
Public/Granted literature
- US08429946B2 Press-working method, and press-working apparatus Public/Granted day:2013-04-30
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