| 摘要 |
PURPOSE:To make a winding signal put out of an electrical sensor in a device for instantaneously winding a seat belt by a pretentioner at collision. CONSTITUTION:A gas generator 31 is operated based on a detection action of an electrical collision sensor, a piston 34 in a cylinder part 33 is moved by a gas pressure generated by the gas generator 31, and lock of a lock member 24 of a wire 21 energized in the direction to wind a seat belt is released by a tension spring 32 by movement of the piston 34. |
