Vehicle body structure producing method and flowable resin dammi

Details Vehicle body structure producing method and flowable resin dammi Vehicle body structure producing method and flowable resin dammi

1989-12-26

1992-04-07

Focarino, Margaret A.

Land vehicles: bodies and tops

Bodies

Structural detail

296187, 296901, B60J 500

Patent

active

051021889

ABSTRACT:
A method of producing a vehicle body structure having a pipe-shaped structural part reinforced with a hard and high density foamed polyurethane resin. The method is carried out as follows: First, a plurality of pressed panels are prepared, the pressed panels being to be joined to form the pipe-shaped structural part. A band-shaped foamable rubber which has not yet foamed is attached onto the inner surface of each of a plurality of panels at a predetermined position. The panels are joined to form the pipe-shaped structural part. The foamable rubber is foamed under heating in a painting step to form a foamed rubber at the predetermined position. Then, a foamed member of a soft foamed polyurethane resin is inserted into an opening formed within the pipe-shaped structural part and defined by the foamed rubber in order to constitute a dam section for blocking the pipe-shaped structural part at the predetermined position. Thereafter, the material of a hard and high density foamed polyurethane resin is poured into a space defined by the dam section within the pipe-shaped structural part and hardened within the pipe-shaped structural part.

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