Title:
BUMPER LEAN HOSE HAVING CLOSED SECTION OF GENERALLY B-SHAPE QUENCHED AFTER PRESS MOLDING
Document Type and Number:
WIPO Patent Application WO/2002/064277
Kind Code:
A1
Abstract:
A light-weight and highly safe bumper lean hose having a closed cross section of generally B-shape and used for increasing the safety of a car by increasing the rigidity of the body of the car or absorbing an energy at the time of collision, characterized in that a hardening treatment is applied thereto to increase the tensile strength of the material after forming in the steps of deeply drawing a steel sheet so as to form a hat shape at the sectionally center part thereof, trimming the outside thereof excluding unnecessary portions, press-forming a rise part at both sectional ends thereof, press-forming an L-shaped slanted rise part at both sectional ends thereof, pressing the steel sheet from both sectional sides thereof and then from the upper side thereof, and welding a connection part.
Inventors:
ANDO SHOSHI (JP)
HISAMA YOUICHI (JP)
HISAMA YOUICHI (JP)
Application Number:
PCT/JP2001/007046
Publication Date:
August 22, 2002
Filing Date:
August 15, 2001
Export Citation:
Assignee:
FUTABA IND CO LTD (JP)
ANDO SHOSHI (JP)
HISAMA YOUICHI (JP)
ANDO SHOSHI (JP)
HISAMA YOUICHI (JP)
International Classes:
B21C37/15; B21D5/01; B21D53/88; B60R19/18; (IPC1-7): B21C37/15; B21D5/01; B21D53/88
Foreign References:
| JP2000334528A | 2000-12-05 | |||
| JPH07178462A | 1995-07-18 | |||
| JPS6076232A | 1985-04-30 |
Attorney, Agent or Firm:
Takeyama, Minekazu c/o Takeyama, Patent Office 2-23 (Renjaku-St. Okazaki-City, Aichi, JP)
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