| 摘要 |
<p>In the present invention, a cylindrical space and a gas introduction space connecting one end of the cylindrical space are formed in a pretensioner body, and an blocking end having a first through hole is provided so as to block the gas introduction space. A piston can move inside the cylindrical space, and a connecting member connected to the piston extends from the gas introduction space through the first through hole and is led out to the outside. An elastic seal element is provided on the inner surface side of the blocking end and has a second through hole which allows the passage of the connecting member. A gas shock-absorbing element is provided so as so sandwich, together with the blocking end, the elastic seal element, and has a third through hole formed with a size and form conforming to the shape and size of the cross-section of the connecting member.</p> |
