qim Posted January 1, 2017 Report Share Posted January 1, 2017 (edited) Would a 4-point seat belt, not be the perfect answer to the TR3A? Two belts coming over each shoulder attaching to a lap belt. What do you think? Edited January 1, 2017 by qim Quote Link to post Share on other sites
foster461 Posted January 1, 2017 Report Share Posted January 1, 2017 Its a good option if you have something to secure the belts to like this example. I suspect it also needs a particular kind of spouse to go along with it if that is an issue for you. It would be for me. Quote Link to post Share on other sites
Drewmotty Posted January 1, 2017 Report Share Posted January 1, 2017 I have 4 point harnesses fitted. They are a bit more of a faf to get into but once they are adjusted and you get used to it it's not a problem. Ive found that passengers are better off pushing the seat back before belting up and then sliding the seat forward to get them nice and tight. The shoulder straps may rub against your neck so a shirt or jacket with a collar is usually a more comfortable option than a tee shirt. They really should be secured to a proper harness bar just below shoulder level usually integrated into a roll over bar. Seats with head restraints and slots for lap straps are also a good plan. Quote Link to post Share on other sites
qim Posted January 1, 2017 Author Report Share Posted January 1, 2017 They really should be secured to a proper harness bar just below shoulder level usually integrated into a roll over bar. I was thinking/hoping to place the rear anchors on the floor... as I do not want a roll over bar. back to the drawing board... Thanks Camilo Quote Link to post Share on other sites
qim Posted January 1, 2017 Author Report Share Posted January 1, 2017 I suspect it also needs a particular kind of spouse to go along with it if that is an issue for you. It'll be my young daughter's car, one day, and i am starting to be conscious of the dangers, although over the past 40 years with this car, I kind of felt that I would rather be thrown out, then get mangled in all that pointed steel under the dashboard... Quote Link to post Share on other sites
Motorsport Mickey Posted January 1, 2017 Report Share Posted January 1, 2017 (edited) Hi Camillo, The mounting points for the shoulder straps need to be at not too sharp an angle, ie having the mounting points on the rear floor or rear seat area makes too much of an belt acute angle. If in an accident the forward propelled force is counteracted likewise and an enormous force pulled down onto your shoulders because of the acute seat belt angle, this has cause serious injuries. That's why most shoulder strap mounting points either travel over a crossbar at near enough the same height as the seat back or from the back of the cockpit onto a suitably braced point onto the car shell this reduces any downward pulling or force onto your shoulders. The low slung seated semi prone position sometimes cause problems with "submarining" with only 4 point belts, this is where the violent halt causes the body to slide under the restraining 2 belts coming across the body from either side. This is counteracted with a 6 point harness with an additional 2 separate belts travelling over the front of the seat in between your legs to the multipoint buckle. This configuration is excellent and will maintain the drivers and passenger in their seated positions no matter what gymnastics your car performs in an accident. However as I'm sure you'll appreciate ladies are reluctant to hitch up layers of bombazine and wrinkle dresses or sheer skirts with a nest of buckles nestling in their lower pelvis. So a 4 point seat belt is probably favourite and provides a worthwhile increase in safety,...oh review this other thread http://www.tr-register.co.uk/forums/index.php?/topic/60537-lucky-driver/ Rather than trusting to luck and being thrown clear under a nearby truck a roll cage does give you safety and these days is accepted by almost everyone. Mick Richards PS: don't forget the rear alloy firescreen whilst you're at it. Edited January 1, 2017 by Motorsport Mickey Quote Link to post Share on other sites
qim Posted January 2, 2017 Author Report Share Posted January 2, 2017 PS: don't forget the rear alloy firescreen whilst you're at it. I spent some time reading about that in the forum before going on to seatbelts. many thanks Camilo Quote Link to post Share on other sites
jean Posted January 5, 2017 Report Share Posted January 5, 2017 Here an older picture of the harness and roll over bar on my TR3A.... not designed for racing, just a better protection in case of.. Quote Link to post Share on other sites
Tonyloz Posted January 7, 2017 Report Share Posted January 7, 2017 Its a good option if you have something to secure the belts to like this example. I suspect it also needs a particular kind of spouse to go along with it if that is an issue for you. It would be for me. Quote Link to post Share on other sites
Tonyloz Posted January 7, 2017 Report Share Posted January 7, 2017 So where did you get yoir roll bsr from? Quote Link to post Share on other sites
iain Posted January 7, 2017 Report Share Posted January 7, 2017 Tony I fitted a Revington one with a removable diagonal.Very nicely made, easy to fit works with soft and hardtop and has that all important harness bar at the correct height. Iain http://www.revingtontr.com/product/rtr9047-3hbr/name/rob-comp-tr2-3b-removable-diag-harness-bar-rhd Quote Link to post Share on other sites
jean Posted January 9, 2017 Report Share Posted January 9, 2017 Mine comes from TR Revington too, but they do not make them it's a Safety Devices product. Quote Link to post Share on other sites
iain Posted January 9, 2017 Report Share Posted January 9, 2017 Revingtons....Made by Caged Laser Engineering.Frome. but Neil rightly has owns the IP on the designs. Iain Quote Link to post Share on other sites
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