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Patent Searching and Data

Document Type and Number:
Japanese Patent JP6529514
Kind Code:
A bumper beam is roll formed so that it gets a closed cross section with, along the length, constant cross section having at least two closed chambers (15, 16) separated by an essentially horizontal partition wall (14). Each chamber has a side (19), which is turned away from the vehicle, with at least one longitudinal concave portion (20, 21; 22, 23) extending along the entire length and one side (24), which is facing the vehicle, with at least one longitudinal convex portion (25, 26; 27, 28) extending along the entire length. After the roll forming, some portions (32) of the cross section are pressed together vertically or horizontally in order to adapt the deformation properties.

Daniel Palo
Application Number:
Publication Date:
June 12, 2019
Filing Date:
March 20, 2015
Export Citation:
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Yestampu Hard Tech Actievolague
International Classes:
B60R19/04; B21D47/01; B21D53/88; B23K26/21
Domestic Patent References:
Foreign References:
Attorney, Agent or Firm:
Junji Yuda
Noriyuki Takebayashi