초록 ▼

Provided is a seatbelt device comprising a buckle pretensioner capable of preventing a connective member from being subject to high temperature/pressure and efficiently converting combustion gas, which provides pressure for retracting the buckle, into retractive power.A buckle pretensioner 10 (30, 4

Provided is a seatbelt device comprising a buckle pretensioner capable of preventing a connective member from being subject to high temperature/pressure and efficiently converting combustion gas, which provides pressure for retracting the buckle, into retractive power.A buckle pretensioner 10 (30, 40, 50, 60, 70) for retracting the buckle 11 pursuant to combustion gas pressure of powder comprises a connective member 13 connected to the buckle 11, and a retractor 12 (32, 72) for retracting the buckle 11 via the connective member 13. The connective member 13 is arranged in a position such that it is not exposed to the combustion gas.

대표청구항 ▼

1. A seatbelt device comprising a buckle pretensioner, wherein said buckle pretensioner includes:a cylinder; a gas generator provided at one end of said cylinder; an extruding member extruded from the other end of said cylinder pursuant to combustion gas which is supplied from said gas generator; a

1. A seatbelt device comprising a buckle pretensioner, wherein said buckle pretensioner includes:a cylinder; a gas generator provided at one end of said cylinder; an extruding member extruded from the other end of said cylinder pursuant to combustion gas which is supplied from said gas generator; a connective member having one end connected to a buckle and the other end connected to a tip of said extruding member; and a pulley for guiding said connective member so as to convert a movement in the direction that said extruding member is extruded into a movement in the direction that said buckle is retracted.