| 摘要 |
In an emergency, when a spool (4) rotates in the direction of unwinding a seat belt relative to a locking base (14), a strip (22) is deformed by a guide groove (21d) of a guide plate (21) fitted to the locking base (14), thereby absorbing impact energy, generating an EA load, and restricting the load applied to the seat belt (3). When a uniformly narrow portion (22d) whose width is narrower than that of a main portion (22a) is deformed, a uniformly small EA load is generated. When a sloping portion (22e) is deformed, a continuously decreasing EA load is generated. Therefore, EA load due to deformation of the strip (22) is variable, and an energy absorbing mechanism has a simple structure and can be produced at a low cost. <IMAGE> |
