30-06-2015, 04:59 PM
23
Re: Car Bumpers
Originally Posted by shirley
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Ok I have just had to look this one up and it says that current design consists of a plastic cover over a reinforced bar.They have to be on all vehicles and are designed to absorb the energy of low speed collisions. But they are being designed to lessen injury to pedestrians struck by cars.
Hope I have ready that right, see what you learn by asking a question.
Now I'm wondering why they changed them so that we can't just replace the bumper ..................I think ............
30-06-2015, 11:11 PM
24
Re: Car Bumpers
Originally Posted by Jimmy
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It's the bodywork of the car that takes the impact by crumpling.If you don't run into anything you won't get a crumpled car.
Oi cheeky
What about someone else running into us!!
01-07-2015, 06:33 AM
25
Re: Car Bumpers
I expect not having a bumper makes the car a little more aero-dynamic, which probably makes a difference to fuel efficiency over the life of the car. Hence perhaps meaning a little less air pollution. Every little helps I suppose.Apart from that, I believe cars not having a definite bumper is for safety considerations to pedestrians. Less injury may be sustained if a pedestrian is hit by a car that doesn't have a bumper, or if it has a bumper that crumples or flexes a bit.
A bumper (if fitted) is a about at knee height or a little below. What happens then is that the bumper hitting a person shatters bones at about that level. This can still happen if a car hits hard enough of course but on balance, getting hit by a car without a bumper may cause less injury.
I think what happens to walkers/children when a car hits them is all part of what gets tested when designing a car's shape. I believe the hope is a person will be sent up onto the bonnet by the car without it breaking bones, or knocking down the person where they might subsequently go underneath it.
Once on the bonnet, there is just the drop to the road. Not good but hopefully the knee joints at least won't be shattered and better on the bonnet than under the car. Shattered knee joints don't mend properly.
I daresay this isn't entirely the reason why cars have no bumpers but I think the pedestrian safety factor does enter into it to a degree. Car bodies can be repaired. A human body maybe not.
https://en.wikipedia.org/wiki/Pedest...vehicle_design
01-07-2015, 10:15 AM
28
Re: Car Bumpers
Originally Posted by mart
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I don't suppose anything will help if a person is hit at speed. Could make a difference at lower speeds though. Also, it's one less part to go rusty. That's another thing about modern cars. Even the metal parts don't go rusty like they used to.
True - I just miss the 'style' of older cars ...............
03-07-2015, 01:49 PM
30
Re: Car Bumpers
Originally Posted by Patsy
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Why don't cars have them any more ?
likewise glove box covers were designed to slice off the kneecaps of the passenger in the front seat. these days cars are much better designed to protect the occupants. bumpers were a bad thing not an advantage.
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