METHOD OF PRODUCING DOOR FRAME
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Nov 20, 2013
filing date -
Nov 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of producing a door frame, which includes a tubular portion which is positioned on a vehicle interior side and has a closed cross-sectional shape, a design portion which is positioned on a vehicle exterior side, and a connecting portion which connects the tubular portion and the design portion; the method includes forming a frame body having a uniform cross section by roll-forming a metal sheet, the frame body including the tubular portion, the design portion and the connecting portion; and varying a width of the tubular portion by press-deforming a section of the tubular portion toward the vehicle interior side.
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