TR Register Forum

Inertia Reel Seatbelts
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Author:  Jim Allen [ Mon Apr 10, 2017 10:30 am ]
Post subject:  Inertia Reel Seatbelts

Just getting around to seat belts.
I have Rob Bradford's old roll over bar fitted with provision to anchor the top of a lap sash belt to it. I'd prefer, I think an inertia reel system. I previously had a static lap/sash anchored to the wheel arch etc. I have also fitted MX5 seats.
Does any one have advice on where, how to fit the inertia reel, what length stick for the clip in part next to the prop shaft tunnel and from where they have sourced the belts. Brands etc.
Any help much appreciated.

Author:  trooo3 [ Mon Apr 10, 2017 12:04 pm ]
Post subject:  Re: Inertia Reel Seatbelts

Hi Jim,
An interesting question. I have recently checked out inertia reels on Bob Adam's car and David Dumolo's car at Phillip Island. I am working on fitting to my car and purchased a belt. It's all work in progress heading towards an article. I will be interested to see what people offer up. The seat belt manufacturers only list fixed lap/sash for a TR. The basic problem is that the belt has to leave the reel at +/- 5 degrees so the mounting has to be accurate. David said that the brackets and engineering certificate cost more than the belts which are about $130 each. I will think about it. Regards, Terry.

Author:  TR1954 [ Mon Apr 10, 2017 6:00 pm ]
Post subject:  Re: Inertia Reel Seatbelts

I installed inertial belts on my TR2 about 3 years ago. At the recommendation of the seat belt sales rep I went to David Clarke Automotive here in Sydney who is an authorised rep for those brand belts and a Triumph specialist. He showed me where and how to mount them and checked them for me after installation. They are mounted as Viv notes above.
They work well and are far more reassuring than the old harnesses I had.
How you could mount them using the roll bar I don't know.

Author:  fingoon rob [ Thu Apr 20, 2017 5:49 pm ]
Post subject:  Re: Inertia Reel Seatbelts

Hi Jim,
The brackets at the top of the bar, I think you are referring to are designed to take the upper inertia belt guide rather than being the anchor point.
It was set up to have the inertia reel mounted to the inner guard facing up directly under the bracket, as near as can be.

The other end of the belt was to be mounted at the outer rear base of the seat and also at the rear of the tunnel on both sides.
All have large steel reinforcing plates supplied by Hemco.

Hemco in Ballarat made mine up to suit the bar which are now too long to retract completely.
the part number for the belts complete, to suit your installation is: 2 off p/n: 1790006sp @ $120 each
Navy Blue (colour can be ??) Inertia Lap/sash with 171002 Anchors & 1765003 Stalks
4 off P/N: 1740211 Reinforcing Plates @ $5.00 each
shipping was $16.00
Invoice reference: 00038069 23/06/2010

Mine work very well, apart from not retracting enough.
I can send you photos & dimensions if you want them.
Hemco Tel: 03 53341213

Author:  Jim Allen [ Mon Apr 24, 2017 6:22 pm ]
Post subject:  Re: Inertia Reel Seatbelts

Thanks everybody.
Bob I've only just seen your reply. Yes bad choice of words on my part. I realise the part on your bar is for the guide rather than an anchor point.
Photos and dimensions would be great thankyou

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