| 摘要 |
The seatbelt apparatus can satisfactory achieve effects of constraining a passenger by ensuring removal of a slack of a lap belt even when two pretensioners are activated under two time frames. A pretensioner 9 of a seatbelt retractor 3 is activated first, and a shoulder belt 4b and a lap belt 4c are pulled in a direction toward the seatbelt retractor 3 as indicated by an arrow A. Subsequently, a pretensioner 10 of a belt anchor portion 4a is activated and pulls a seatbelt 4 toward the belt anchor portion 4a, and hence a one-way tongue 5 catches and locks the seatbelt 4. Accordingly, the shoulder belt 4b is prevented from moving toward the lap belt 4c through the tongue 5. Therefore, removal of the slack of the lap belt 4c is ensured, and hence a lumber of the passenger is firmly fixed (Fig. 1). |
