SEAT BELT

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Outline

•  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].)(See FRONT PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
―  ELR (Emergency Locking Retractor: emergency locking mechanism)
―  Load limiter
•  Three-point second-row seat belts with the following functions for second-row passengers (left and right seats) adopted.
―  Rear pre-tensioner seat belt (See REAR PRE-TENSIONER SEAT BELT [STANDARD DEPLOYMENT CONTROL SYSTEM].)(See REAR PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
―  ALR
―  ELR
―  Load limiter
•  Three-point second-row seat belt with the following functions for second-row passenger (center seat) adopted.
―  ELR
•  Three-point third-row seat belts with the following function for third-row passenger 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.

Seat belt

Type

Function
Front seat belt (Driver-side, passenger-side)
Three-point
•  Front pre-tensioner seat belt
•  ELR
•  Load limiter
Second-row seat belt (LH/RH)
Three-point
•  Rear pre-tensioner seat belt
•  ALR
•  ELR
•  Load limiter
Second-row seat belt (center)
Three-point
•  ELR
Third-row seat belt
Three-point
•  ELR


Structure/Construction/Operation


Structural view (R.H.D.)

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Structural view (L.H.D.)

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•  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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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.


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.

(R.H.D.)

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(L.H.D.)

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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

•  Refer to [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

•  Refer to [REAR PRE-TENSIONER SEAT BELT]. (See REAR PRE-TENSIONER SEAT BELT [STANDARD DEPLOYMENT CONTROL SYSTEM].)(See REAR PRE-TENSIONER SEAT BELT [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)


Fail-safe

•  Not applicable