Why are bus driver seats so springy

Thu 26 Mar 2015 12:08

Hello tricycle.
I would like to add additional springs to the bucket seat of my BW. The reason for this is the severe disability of my wife who, because of her spine, has a hard time clogging the bumps through potholes and the like. The entire team has already been optimally coordinated by HU. More suspension would worsen the driving characteristics enormously. That is why I came up with the idea of ​​adding additional springs to the bucket seat in the BW, possibly with air suspension similar to the truck driver's seats The problem is that the seat shouldn't come much higher because of the rain cover. Anyone have ideas?

Thu 26 Mar 2015 12:27

HM, only that you would have to stroll through the factory of a seat manufacturer. Which, apart from truck seats, are still so sprung?


Stephan

Thu 26 Mar 2015 12:48

Possibly you can do something under the actual seat that dampens further vibrations.
Any kind of foam or something similar.
Possibly something could also be done with a self-made "air cushion" (modification to a Luma, for example. Fitting under the seat frame, this could be quite effective, I think)

Greetings Michael

Thu 26 Mar 2015 13:08

Hello Stephan
I actually wanted to leave the seat, only this "additional springs". In order not to change the height noticeably, the suspension would either have to be quite flat or the seat holder would have to be moved downwards (possibly under the boat) to have more space for suspension. Does anyone know of air suspension bellows which, similar to the air suspension on truck trailers, are only much smaller and, if possible, can also be regulated, or which can be purchased?
@ Michael:
Jou, that's exactly where my thoughts are going. But it should be stable and secure.

Thu 26 Mar, 2015 13:28

Maybe it's a stupid idea: separate the sidecar shell from the chassis and put a cushioning / suspension in between instead of the silent blocks?


They have tractor seats.

http://www.fk-soehnchen.de/Schlepper-un ... -Zubehoer /

Thu 26 Mar, 2015 14:21

Hello Kommmschmitt

It's great that you want to optimize the seating comfort for Hannelore.
There are seats for tractors and similar commercial vehicles. The suspension is vertical behind the seat. The seat hangs on a frame in which the spring expression is inside.
Air suspension under the seat builds up 20cm and more.
I would also recommend Kay Uwe's idea of ​​the spring-mounted boat. Isn't there something like that on Harley boats?

I wish you a hell of a lot of success so that your navigator has it well.

greeting
Karsten

Thu, Mar 26, 2015 2:24 pm

Hi Come on!

You need something like a shock absorber (spring plus damper).
A lot of effect = a lot of space required, little effect = little space requirement.
If you put the seat higher (see Tip tractor seat from Kai-Uwe) you will probably have to modify your rain cover.
Of course, you can also cushion the boat against the chassis. But I don't know whether there is a ready-made solution for a boat somewhere.
The shocks that act on the boat / occupant come from different directions, depending on which of the three wheels has to go through a pothole.

Foam is completely unsuitable.
Silent blocks (rubber) are usually designed to reduce vibrations.

Thu 26 Mar, 2015 14:31

Hello Karsten
Ever thought about bicycle shock absorbers, seat in the front in a joint / hinge and at the back 2 bicycle shock absorbers which may be attached to the BW frame through the boat.
Since I do not know your HU conversion, it is also difficult to say something about it,
Do you have a picture?

Vitus

Thu 26 Mar 2015 14:33

Vitus wrote:Hello Karsten
Ever thought about bicycle shock absorbers, seat in the front in a joint / hinge and at the back 2 bicycle shock absorbers which may be attached to the BW frame through the boat. Or hang your boat in shock absorbers at the back, Steib did it that way with the TR
Since I do not know your HU conversion, it is also difficult to say something about it,
Do you have a picture?

Vitus

Thu 26 Mar, 2015 15:46

Maybe a very stupid idea. If the sidecar has sufficient ground clearance, you can let a box in the ground and a spring element can be sunk in this under the seat.

Thu 26 Mar 2015 15:55

only springs won't do anything, it also wants to be dampened, otherwise only hops.

Thu 26 Mar 2015 15:57

what else comes to mind; if you realize something like that, make sure that the seat can only move in one plane, not sideways as well. otherwise you feel like you're sitting on an exercise ball

Thu 26 Mar 2015 16:40

Hello
Take a look at the fork lift seats. My best wife of all thinks the simple grammer for 110 teurons on the net is great. And recently I was allowed to sit in or better on the sidecar.
You can tell how the springs of the seat cushion small bumps well.
You can of course also order more expensive seats from the company - with a low overall height.
Or go to a forklift company you trust, maybe they have a used one lying around for little money to try out.
greetings

Thu, Mar 26, 2015 7:57 pm

Sejerlänner Jong wrote:Maybe a very stupid idea. If the sidecar has sufficient ground clearance, you can let a box in the ground and a spring element can be sunk in this under the seat.



Very good idea. Has something. . .


Stephan

Thu, Mar 26, 2015 8:26 pm


Here is a picture of my tricycle. There isn't really much space under the boat. In addition, thanks to the pimped engine, the part is quite fast up to over 150km / h and is accordingly sprung. In the BW, HU replaced the original damper with a good damper that can be adjusted in rebound and compression levels, which has resulted in an enormous improvement in the damping. It can't be softer, otherwise the box will no longer be easy to move. therefore I thought of an additional "suspension" of the seat so as not to affect the really excellent driving characteristics. The bucket seat in the BW gives Hannelore good lateral support, which is why I would like to keep it. But if I could block the substructure of a forklift seat there .... brooding ...

Fri 27 Mar, 2015 18:48

The team builders now also have seats with many small pocket spring cores. They should also spring quite well.

Tue 23 Jun, 2015 19:02

Why don't you get a well-preserved integral car seat from the scrap dealer around the corner and have it reupholstered with leather / artificial leather? Costs around € 4-500. And you have seating comfort like in a car with seat backrest, height adjustment, etc.
Have a seat from the Mazda MX5 in the Heeler (R1100 RT-sidecar) and one from the Toyota Paseo in the BW from the R1200C-sidecar.
Great seating comfort in both.
Monas

Tue 23 Jun, 2015 19:08

Attached is the photo of the R1100 Rt team
Monas

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Tue 23 Jun, 2015 19:14

Yes, and then the C-team with a paseo seat

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Wed 24 Jun 2015 05:02

kommmschmit wrote:Hello tricycle.
I would like to add additional springs to the bucket seat of my BW. The reason for this is my wife's severe handicap who, because of her spine, has a hard time clogging with potholes and the like. The entire team has already been optimally coordinated by HU. More suspension would worsen the driving characteristics enormously. That is why I came up with the idea of ​​adding additional springs to the bucket seat in the BW, possibly with air suspension similar to the truck driver's seats The problem is that the seat shouldn't come much higher because of the rain cover. Anyone have ideas?


Hello,

the simplest idea would be to replace the seat console with a swing arm seat console. Can be bought ready-made for many off-road vehicles (e.g. from Isri).
Even with a metal spring, a not insignificantly improved suspension comfort can be achieved, based on our own experience of several years.
Here is an example: Isri swing arm seat console with which you can assess the dimensions (had a similar console itself in the off-road vehicle for a few years)

But it always costs a few centimeters of additional height, depending on how high the missing / previous seat console is or was.

greetings

Jens

Wed 24 Jun 2015 09:30

I would also suggest the tip with the forklift seat, which is available with air suspension (with integrated small compressor or air bellows) lap belt. Can be adjusted to body weight and height, lumbar support and adjustable armrests are also available and all in a small space.
Greetings Bernd

Thu 16 Jul 2015 06:53

Moin Bernd!

I just saw something there.

http://www.ebay-kleinangebote.de/s-anze ... 9-306-1173

Greetings, Jens

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