Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION OF FUEL TANK SUPPORT FOR VEHICLE
Document Type and Number:
Japanese Patent JPH1080728
Kind Code:
A
Abstract:

To prevent the occurrence of wrinkles on an inward bent face by pressing a hat shaped ceiling part from inside with a press die and expanding both sides of a 90° bent part in the width direction when the fuel tank support for vehicle to support/fix to a vehicle body is produced from a metal strip formed to a hat shape in its cross section.

Relief recessed parts 1b are arranged to both sides of a pressing face 1a of a bending press lower die 1 of a bent support 3, a press projecting part 2a corresponding to the lower die pressing face 1a is arranged to an upper die. By placing a strip plate, which is formed to the hat shaped in cross section beforehand by pre-working, on the lower die 1 and descending an upper die, the 90° bent part 3a of the support 3 is formed by pressing the ceiling part of a hat part from inside by a pressing face 1a. At this case, a width of the bent part 3a in both directions is not restrained by the relief recessed parts 1b and expanded, as a result, a wrinkle is not generated both bending parts and flat state is maintained. A whole hat shape 3b except the 90° bent part 3a of the support 3 produced has a diameter of the pre-working shape.


Inventors:
TANIZAWA TAKAO
OGIWARA TAKESHI
Application Number:
JP25218596A
Publication Date:
March 31, 1998
Filing Date:
September 04, 1996
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHIYODA AUTOMOTIVE IND
International Classes:
B62D25/00; B21D7/06; B21D53/84; B60K15/063; (IPC1-7): B21D7/06; B21D53/84; B60K15/063; B62D25/00
Attorney, Agent or Firm:
Jiro Hirai