| 摘要 |
PROBLEM TO BE SOLVED: To provide a comparatively simple and safe safety mechanism by temporarily absorbing some of force generated in a gas generator by explosion of a pretensioner at the time when an elastic seal provided on a piston senses a collisional state. SOLUTION: A sensor lever 34 and a revolving bar 33 hold a gas generator at a proper position in a main body of a member 30. An ignition pin plate 39 is crimped on a top part of a recessed part 66 of the member 30. A sensor spring 35 is pushed into an opening 71 of the member 30 at the time of assembly and held at a proper position by a sensor spring cap 36. A cable 28 is sealed in the member 30 by a seal member 31, and the seal member 31 is held properly in the member 30 when a pressure pipe 64 is screwed in the member 30. An end part of the cable 28 enters a piston through a piston seal 29 and crimped there. A gap capable of flowing gas to the pressure pipe 64 from the gas generator is provided on the seal member 31. |
