| 摘要 |
<p>The present invention relates to an anchor pre-tensioner for a seat belt. The purpose of the present invention is to provide an anchor pre-tensioner for a seat belt, which is capable of solving the problems that a wire and a connect are exposed to the outside in a long length, this causes deterioration of appearance quality, and a submarine effect (webbing abdomen jamming) occurs due to a reduction of a belt bridge on impact. To achieve the above purpose, there is provided an anchor pre-tensioner for a seat belt includes: a drum rotatably mounted on a mounting bracket; a rotator having a lower end portion integrally fixed to the drum, and an upper end portion connected to a seat belt webbing; a wire provided to be wound around the drum; a cylinder having a piston coupled to one end of the wire; and a gas generator configured to supply gas pressure for moving the piston to the cylinder. While the wire pulled when the piston moves is unwound from the drum, the drum is rotated and, at this time, the rotator pulls the seat belt webbing while being rotated forwards around the drum.</p> |
