Technical advice wanted  

it's a question of...
it's a question of originality...i would think
If it was mine i'd put back what was once/is there
Regards

comfort
I suppose the fabric 'singel' will be less comfortable.
as only the cushion (if any) will give you some softness/bounce.

Yes, those were my thoughts...
Yes, those were my thoughts to.
Erik do you know of a producer in belgium of these straps?
Would rather by them locally than spend a lot of money on the net...

singel
just google for "singel rubber" or for "meubelstoffeerderij benodigdheden"
I would check with Mobus first.
http://www.mobus.be/producten.html
http://www.palty.nl/index.php/nl/producten?page=shop.product_details&fly...
http://www.heframeubelstoffeerderij.nl/webshop/singelband/rubber_singel/...
http://www.mobus.be/producten.html

Thanks Erik!
This is the chair I'm currently working on.
There's also a sofa with low backrests.
It was sold at Gervan, a furniture-brand and showroom in Ingelmunster (W-Flanders, Belgium) and I heard this would have been at that time one of the few really modern pieces in their showroom.
The quality of the wood, the construction and the style seem very scandinavian. Has anybody seen this chair, being made by another brand? I saw this set in radar being tagged as a Hans Olsen design, made by CSMobler (see link), but can't find other scources confirming this.
I would like to trace the designer so I can look up his/her other designs.
Thanks!
http://www.city-furniture.be/itemviewer.php?id=138#

maybe
maybe they still exist?
http://www.fbg.be/96908

andre verroken
André Verroken has once made a project for them.
This project was sponsored by (no longer existing) the Design Centre (Brussels)
Maybe you can contact him?
"deelname aan de tentoonstelling ?C + M ?81? tijdens de 44e ?Internationale Vakbeurs van het Meubel? te Brussel voor Pirelli SACIC en Gervan"
http://www.andreverroken.be/index.html

Nope 🙂 The firm closed...
Nope 🙂
The firm closed down 10 years or so ago.
We have our office here in the neighbourhood and I kind of stumbled upon it by accident.
There lives a sister in law next to the former showroom, she has no information at all (old catalogues, photos) and other relatives aren't anymore.
Maybe I can trace someone who worked there on the floor..
(edit)
I already emailed A.Verroken but got no answer. I suspect he participated in the late seventies or even eighties.
It's weird, as they otherwise seemed to produce more classically formed seating..

weird?
Maybe not so weird.
Sometimes companies want to modernize their collection and try some styles; but finally it (for various reasons) doesn't work out.

edit?
what was edited?

I edited my message to...
I edited my message to include the thing on Verroken.
No worries 🙂 !
I just passed by the building, a moment ago. It's for rent now. On the plot in front of the building still stands an abstract sculpture made out of wood-elements, a deteriorating monument from the sixties.
I guess you're right. Maybe they sold these to diversify their range.

.
I own a similar sofa, I believe it is Hans Olsen, see link below or google 'Hans Olsen sofa' (there are a 2 quite large images on the first page of results) or check the Danish Furniture Index.
http://www.designaddict.com/design_addict/forums/index.cfm/fuseaction/th...

thanks for the reply,
The construction of the H.Olsen sofa is covered in leather, only the legs are visible and made out of wood.
I'm thinking the dealer mentioned before wanted to tag it with a known designers name and it's now getting a new life as an olsen-set. Yet, the seating shows detailing I've never seen on pieces by Olsen: more geometric styling, different individual elements put together against the more bulky construction of Olsen and the use of nylon in the seatings back.
I'm obviously to involved 🙂

bj
Did you ever find out who designed your chair?
I've just picked up a sofa which I believe is the same design. It also has the Gervan sticker. I also thought it was Olsen, but the arms and back are different as you said above.
Same as this one: