SEAT BELT


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Outline

•  Three-point seat belts with the following functions for passengers have been adopted.
―  Load limiter
―  ELR (Emergency Locking Retractor: emergency locking mechanism)
―  Pre-tensioner seat belt

Function

•  The seat belts are belt type safety devices which restrain the occupants in their seats.
•  The seat belt prevents the driver and the passenger from being thrown from the seat and injured due to an emergency vehicle stop or impact by being hit.
•  The specifications for each seat belt are as indicated in the table.

Seat belt

Type

Function

Driver’s side
Three-point
•  Load limiter
•  ELR
•  Pre-tensioner seat belt
Passenger’s side
Three-point
•  Load limiter
•  ELR
•  Pre-tensioner seat belt


Structural View

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Construction, Operation

•  For the three-point seat belt, the seat belt is secured to the drum in the retractor and wrapped.
•  The seat belt is pulled out or retrieved by the rotation of the drum to adjust the length of the seat belt.
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Load limiter

•  When a certain amount of force is applied to the seat belt by an occupant moving forward by inertia force after the pre-tensioner seat belt operates, the locking base in the retractor is unlocked, the seat belt pulls out to mediate the pressure of the seat belt against the occupant.
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ELR (Emergency Locking Retractor)

•  If a sudden force is applied to a seat belt by an occupant moving forward by inertia force due to a vehicle collision or sudden braking, the locking base in the retractor is locked to prevent (lock) the seat belt from being pulled out.


Pre-tensioner seat belt

•  Refer to [PRE-TENSIONER SEAT BELT]. (See PRE-TENSIONER SEAT BELT.)


Fail-safe

•  Not applicable