Under frame of a motor vehicle

Details Under frame of a motor vehicle Under frame of a motor vehicle

1988-08-10

1991-03-26

Song, Robert R.

Land vehicles: bodies and tops

Bodies

Structural detail

296208, B62D 2100

Patent

active

050023330

ABSTRACT:
An underframe of a motor vehicle includes side sill frames extending along and at opposite sides of a floor portion of a passenger compartment, and tunnel frames extending in the same direction as and interposed between the side sill frames. Each of the side sill frames and tunnel frames has a top-open channel configuration. Front side frames are also provided with a top-open channel configuration. Straight portions of the side sill frames and tunnel frames are individually connected at their front ends to the front side frames by top-open channel-like connecting portions such that the channels of those frames are communicated to each other. The underframe having such a structure is easy to produce and provided with extreme rigidity and strength.

REFERENCES:
patent: 2226790 (1940-12-01), Valletta
patent: 3419303 (1968-12-01), Eggert, Jr. et al.
patent: 4457555 (1984-07-01), Draper
patent: 4712829 (1987-12-01), Hurten et al.

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