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US 6,296,299 B1Granted
Frame structure for vehicle body
AssigneeMazda Motor Corporation
InventorsKatsunori Hanakawa, Mitsugi Fukahori, Kyoso Ishida, Yukio Yamamoto
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AssigneeMazda Motor Corporation
InventorsKatsunori Hanakawa, Mitsugi Fukahori, Kyoso Ishida, Yukio Yamamoto
Estimating the term…
Material characteristics that a foamed filler material (s) to be filled in a frame cross section (fr) should have are discussed. By using a material complying with the characteristics, the energy absorbability of the frame (fr) is effectively enhanced. In a frame structure (fr) for vehicle bodies in which a filler material is filled in at least part of the cross section of a frame, the filler material is set to a mean compressive strength of not less than 4 MPa and/or a maximum bending strength of not less than 10 MPa. More particularly, the filler material is set to a mean compressive strength of not less than 5 MPa and/or a maximum bending strength of 60 MPa.
A frame structure for vehicle bodies in which a filler material is filled in at least a portion of a cross section of the frame, said filler material is made of a porous material having a mean compressive strength defined for a collision load input side of the frame set to not less than 4 MPa and a maximum bending strength defined for a counter collision load input side of the frame set to not less than 10 MPa;
A frame structure for vehicle bodies in which a filler material is filled in at least a portion of a cross section of the frame, said filler material is made of a porous material having a mean compressive strength defined for a collision load input side of the frame set to not less than 4 MPa and a maximum bending strength defined for a counter collision load input side of the frame set to not less than 10 MPa;
Dependencies are inferred from the claim text.