Patent ID: 7121628

Claim:
A belt pressure reduction device comprising: a combining portion being formed by folding two sides of a plane structure so that one side covers upon another side forming an adhering section that forms a hollow receiving space within the combining portion; an air cushion arranged within the hollow receiving space; the air cushion having two ends at two opposite sides of the air cushion; one end of the air cushion being an airbag and another end thereof being an air inflation unit; the airbag does not enclose the air inflation unit; wherein the inflation unit inflates air into the air cushion so as to cause the airbag to be elastic; and a belt arranged within the receiving space of the combining portion; the belt being arranged at one lateral side of the air cushion and thus adjacent to the air cushion; wherein n a plurality of ribs are transversally and parallel arranged upon on a surface of the airbag of the air cushion.