Seat Belt Systems: Adjustments
A: ADJUSTABLE SHOULDER ANCHOR
The front seat belt has a mechanism that allows the occupant to select the most appropriate shoulder anchor height from among the five positions [changeable within 100 mm (3.94 in) range].
B: BELT IN SEAT
The front inner belt is now integral with the front seat. This keeps the relative positions of the occupant and the front inner belt always constant, irrespective of the adjustments of the front seat position.
When an impact is applied to the occupant in a collision, the inner belt is pulled together with the upper hook in the direction of the arrow to engage the upper hook with the lower hook, As a result, the impact load is transmitted to the vehicle body and dispersed.
C: AUTOMATIC ELR
When the webbing of the front seat belt (passenger side) and rear seat belts (right and left side) are once drawn out completely, its retractor is changed to the automatic locking condition to securely install the child restraint system. In this condition, the webbing can be retracted but cannot be extended. When the belt is retracted to some extent, this condition is released.
D: ENERGY ABSORBING TYPE ELR
1. MECHANISM
- The energy absorbing type ELR consists of a plate, lower plate, slide plate, torsion bar and clamp.
- This type of ELR has a function to release the tension of webbing partially when a larger load than the predetermined is applied to the webbing by impacts at a collision. If the vehicle is involved in a collision, the ELR assembly must always be replaced with a new one regardless of its severity, since the internal parts may be deformed
2. OPERATION
If, as in the case of a collision, the webbing is rolled out with G larger than the predetermined, the ELR mechanism operates to allow the clamp to lock the webbing. In this condition, if a larger load than the preset is further applied to the webbing, the slide plate moves along with the clamp and the webbing, causing the plate to deform gradually. This in turn causes relaxed tension of the webbing, which is followed by controlled restraint by means of a torsion bar located at the center of the roller.