Land vehicles: bodies and tops – Bodies – Structural detail
Reexamination Certificate
2008-03-25
2008-03-25
Pape, Joseph D. (Department: 3612)
Land vehicles: bodies and tops
Bodies
Structural detail
C296S146600, C296S187120, C293S102000, C029S897200
Reexamination Certificate
active
11453841
ABSTRACT:
A metal tube for reinforcing car body, and a car body reinforcement according to the invention have a curved portion extending over the entire longitudinal length or a local longitudinal length, wherein, when the reinforcement is assembled such that the outer periphery of the curved portion is aligned substantially in the direction of impact applied to the car body, the load ramp gradient, the maximum load and the absorbed energy are all enhanced in case of a car body collision. Particularly, an increase in the load ramp gradient as for the load property at the start of deformation provides an excellent crash capacity in reinforcing the car body. Moreover, the metal tube and the reinforcement according to the invention are capable of satisfying the current requirements for much more crash capacity of the car body, along with both a weight reduction of the car body and a reduced manufacturing cost, and therefore they are applicable in a wide field for protecting occupants in an automobile.
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Hattori Yoshitaka
Iino Yoshikatsu
Inoue Saburo
Kikuchi Fumihiko
Moroi Kenji
Clark & Brody
H-One Co, Ltd.
Sumitomo Metal Industries Ltd.
Sumitomo Pipe & Tube Co., Ltd.
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