passenger van seat belt help

[tonga]

I need everyone's help.

My friend and I both have RB passenger vans. Mine a 99 and his a 2006.

We both need to use car seats on the second row bench. Here is the problem, none of the seat belts seem to have the "inertia lock" (I think that's what it's called) except the front seats. As quick and hard as I pull the seat belt, none of the rear belts will lock, with exception if you pull all the way out. My little girl has a booster she sits in and the shoulder/lap belt holder her and the booster to the bench. Without an inertia lock, the belt is useless in an accident.

Does anyone have a suggestion/experience with this (short of replacing the seats completely).

 

[Jsweezy]

When you buckle the seat in just pull it all the way out so it stays locked when it's buckled. That's what I would do as then it's acting as it would when in a crash just all the time.

 

[Raul]

There are three different things on a seat belt retractor.

• Inertia lock. A centrifugal clutch locks the spindle when the webbing is pulled too fast. The rate of speed may be different between the front and rear.
• Acceleration lock. Usually a metal ball on a little cup. If you tilt the retractor in any angle it will lock. This is way they sometimes lock when you are on a steep incline. In case of sudden deceleration (crash, sharp turn) the ball gets pushed out of place and locks the system.
• KISI ( I think this is how we called when I was in the industry back in Europe). This is a turns counter. Several gears, once the Webbing is retracted it locks the system only allowing to retrieve
  inside. It will unlock once the belts gets completely in. This is used to fix permanently car seats with its own restraining system.

In the original question I do not think you have an issue. At least not in both vans. The calibration in the back seats maybe less sensitive to allow more motion to the rear passengers. If you want to test them you can unbolt the retractor from the wall and check that it locks when tilted. Or see if they lock when taking a sharp turn, just careful don't flip the van trying to test the seat belts

 

[tonga]

There are three different things on a seat belt retractor.

• Inertia lock. A centrifugal clutch locks the spindle when the webbing is pulled too fast. The rate of speed may be different between the front and rear.
• Acceleration lock. Usually a metal ball on a little cup. If you tilt the retractor in any angle it will lock. This is way they sometimes lock when you are on a steep incline. In case of sudden deceleration (crash, sharp turn) the ball gets pushed out of place and locks the system.
• KISI ( I think this is how we called when I was in the industry back in Europe). This is a turns counter. Several gears, once the Webbing is retracted it locks the system only allowing to retrieve
  inside. It will unlock once the belts gets completely in. This is used to fix permanently car seats with its own restraining system.

In the original question I do not think you have an issue. At least not in both vans. The calibration in the back seats maybe less sensitive to allow more motion to the rear passengers. If you want to test them you can unbolt the retractor from the wall and check that it locks when tilted. Or see if they lock when taking a sharp turn, just careful don't flip the van trying to test the seat belts

Thanks for the reply. I checked another van today at the pick and pull and the rear belt was, again, the same as my van. The rears seems not to want to lock when I pull hard on the belt, while the two front belts are very easy to lock. I'll take a closer look and maybe it is a different rate required for locking. Maybe i'll get into my friends van and he can slam on the brakes with me in the back. Worth a test.