SEAT BELT


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Outline


With standard deployment air bag control system

•  Three-point front seat belts with the following functions for front seat passengers have been adopted.
―  Front pre-tensioner seat belt (See FRONT PRE-TENSIONER SEAT BELT [STANDARD DEPLOYMENT CONTROL SYSTEM].)
―  ELR
―  Load limiter
•  Three-point rear seat belts with the following functions for rear seat (left and right seats) passengers adopted.
―  ELR
•  Three-point rear seat belt with the following function for rear seat passenger (center seat) adopted.
―  ELR


With two-step deployment air bag control system

•  Three-point front seat belts with the following functions for front seat passengers have been adopted.
―  Front pre-tensioner seat belt (See FRONT PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
―  ELR (Emergency Locking Retractor: emergency locking mechanism)
―  Load limiter
•  Three-point rear seat belts with the following functions for rear seat (left and right seats) passengers adopted.
―  Rear pre-tensioner seat belt (5HB) (See REAR PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
―  ELR
―  Load limiter (5HB)
―  ALR (Automatic Locking Retractor: child-restraint seat locking mechanism) (Australian specs.)
•  Three-point rear seat belt with the following function for rear seat passenger (center seat) adopted.
―  ELR


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.

With standard deployment air bag control system

Seat belt

Type

Function

Front seat belt (Driver-side, passenger-side)
Three-point
•  Front pre-tensioner seat belt
•  ELR
•  Load limiter
Rear seat belt (LH, RH)
Three-point
•  ELR
Rear seat belt (Center)
Three-point
•  ELR

With two-step deployment air bag control system

Seat belt

Type

Function

Front seat belt (Driver-side, passenger-side)
Three-point
•  Front pre-tensioner seat belt
•  ELR
•  Load limiter
Rear seat belt (LH, RH)
Three-point
•  Rear pre-tensioner seat belt (5HB)
•  ELR
•  Load limiter (5HB)
•  ALR (Australian specs.)
Rear seat belt (Center)
Three-point
•  ELR


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.


ALR (Automatic Locking Retractor)

•  When the seat belt is pulled out and fastened, the ALR locks the seat belt at that length and it cannot be pulled out any more.
•  The ALR is mainly used for installing a child-restraint.


Front pre-tensioner seat belt

•  For the front pre-tensioner seat belt construction/operation, refer to the FRONT PRE-TENSIONER SEAT BELT. (See FRONT PRE-TENSIONER SEAT BELT [STANDARD DEPLOYMENT CONTROL SYSTEM].) (See FRONT PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)


Rear pre-tensioner seat belt

•  For the rear pre-tensioner seat belt construction/operation, refer to the REAR PRE-TENSIONER SEAT BELT. (See REAR PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)


Fail-safe

•  Not applicable