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1. (WO2017056783) BUMPER MEMBER JOINING METHOD AND BUMPER STRUCTURE

Pub. No.:    WO/2017/056783    International Application No.:    PCT/JP2016/074348
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Tue Aug 23 01:59:59 CEST 2016
IPC: B21D 39/20
B21D 19/08
B21D 39/06
B21D 53/88
B60R 19/04
B60R 19/24
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
Inventors: MAEDA, Yasuhiro
前田 康裕
HASHIMURA, Toru
橋村 徹
NAITOU, Junya
内藤 純也
KATSUMA, Hideto
勝間 秀人
Title: BUMPER MEMBER JOINING METHOD AND BUMPER STRUCTURE
Abstract:
In this bumper member joining method, hollow bumper stays (20) and a bumper reinforcer (10) comprising rearward inclined walls (14) with a hole (16) therein are prepared. The bumper stays (20) are then inserted in the holes (16) in the bumper reinforcer (10) and made to pass through the rearward inclined walls (14), rubber (30) is inserted into the bumper stays (20), the rubber (30) is compressed in the direction of the axis (L) of the bumper stays (20) so that said bumper stays (20) expand outward from the interior, and at least the parts of the bumper stays (20) that have been inserted in the holes (16) thereby expand and deform so as to be joined by crimping to the rearward inclined walls (14). Configuring in this manner provides a bumper member joining method that is not subject to limitations regarding shape or materials, that reduces costs, and that makes it possible to easily join the bumper stays (20) and the bumper reinforcer (10) by crimping.