METHOD FOR MANUFACTURING SUNROOF RAIL

WIPO Patent Application WO/2020/152998

A1

The objective of the present invention is to manufacture a sunroof rail having high dimensional accuracy and no cross-sectional deformation.　This method for manufacturing a sunroof rail, for manufacturing a sunroof rail by bending an extruded profile (10) made of aluminum alloy, is characterized by including: a profile preparation step of preparing the extruded profile (10), provided with recessed grooves (12a to 12g); a core insertion step of inserting cores (20a to 20g) into the recessed grooves (12a to 12g) of the extruded profile (10); a profile arrangement step of fixing a front end portion of the extruded profile (10) to a bending mold (3) facing a straight mold (2), while causing the extruded profile (10) to lie along the straight mold (2); a bending preparation step of sandwiching the straight mold (2) and a front portion of the bending mold (3) between a pair of rollers (5, 6); and a bending step of passing the extruded profile (10) forward between the pair of rollers (5, 6) together with the bending mold (3) and the straight mold (2).

WATANABE MASATO (JP)
MATSUNAGA TAKASHI (JP)
YOSHIOKA KIMIYOSHI (JP)
ADACHI YUKI (JP)

PCT/JP2019/047148

July 30, 2020

December 03, 2019

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NIKKEIKIN ALUMINIUM CORE TECH COMPANY LTD (JP)
SEIKO MFG CO LTD (JP)

B21D7/08; B21D9/07

JP2014030835A	2014-02-20
JP2014040165A	2014-03-06
JPS61130024A	1986-06-17
JP2005118830A	2005-05-12

ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)

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