| 摘要 |
<p>Pretensioner (1) for automobile seat belt device (7) comprises gas generator (2), gas conduit (3), piston (5) and coupling means (6). The gas generator (2) generates a high-pressure gas when the automobile is impacted by collision, sudden stop, etc. The gas conduit (3) houses the gas generator (2). The gas conduit (3) guides the high-pressure gas released from the gas generator (2) to the piston (5). The piston (5) is moved or displaced by the pressure of the high-pressure gas guided by the gas conduit (3). The coupling means (6) is linked to the piston (5) and buckle (8) of the seat belt device (7). The coupling means (6) winds up or pulls seat belt (9) in accordance with the move of the piston (5) to thereby enhance the constraint force of the seat belt (9).</p> |
