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Old 13-05-2012, 01:38   #1
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Comfortable cockpit seat profile.

I am in the process of rebuilding our cockpit to make it more comfortable.
The new seats will be slatted timber and this will allow them to be ergonomically profiled for comfort.
I know the basic slope of the seat back should approach fifteen degrees, and the base should slope back about eight degrees.
The trouble is that search as I may, I have been unable to find any information on what curves to put where.
Should there be a bulge in the small of the back? How high should the back be? Should the base be curved or flat? etc. etc.
Does anyone know of a plan for a comfortably curved seat base and back?

Thanks,

Richard
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Old 13-05-2012, 03:31   #2
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Re: Comfortable cockpit seat profile.

This site is loaded with upholstery pros that will give the answers you need. Ive learned more on this site than I could have in a library of upholstery books.

My Community - Index
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Old 13-05-2012, 18:03   #3
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Re: Comfortable cockpit seat profile.

Thanks, ForSaleByOwner, I went to the upholstery site and will use it when doing our interior cushions, but could not find anything on seat profiles.
Our cockpit seats will not be upholstered, just bare wooden slats. I just need the curvature for the base and back.

Regards,
Richard.
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Old 13-05-2012, 18:29   #4
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Re: Comfortable cockpit seat profile.

Keep the gap between slats real small. anything over a 1/4 can get a little uncomfy at times. Google this "seating ergonomics design" and you will see alot, usually a lower back hump and up under the legs curling away at the knees.
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Old 13-05-2012, 19:00   #5
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Re: Comfortable cockpit seat profile.

I love our helmsman seat which is U-shaped. keeps me upright no matter how much we heel.
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Old 13-05-2012, 19:04   #6
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Re: Comfortable cockpit seat profile.

I dislike seat bottoms that are tilted (later pearsons). Flat makes for better lounging and sleeping
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Old 13-05-2012, 19:09   #7
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Re: Comfortable cockpit seat profile.

Most ergonomic seating design, theory & practice, is “task” seating oriented.
Cockpit seating doesn't allow for arm rests, differing people's physiology (not adjustable), and must account for heeling.

Nonetheless, check out “Lumbar Support" ➥ http://www.haworth.com/en-us/Knowled...ting-Guide.pdf
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Old 13-05-2012, 19:28   #8
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Re: Comfortable cockpit seat profile.

I will be building one for our boat too. THX for this thread.

I think I will start with a frame and slats, then apply closed cell foam over. I want to build it so that it can be tilted back when the boat is heeled.

b.
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Old 13-05-2012, 19:39   #9
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Re: Comfortable cockpit seat profile.

The seats I like the best have:

A little downward seat slope (about 1")

The back rises vertically for 4" to provide lumbar support, then slopes.

Seat back 18" high

Carl
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Old 13-05-2012, 23:02   #10
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Re: Comfortable cockpit seat profile.

I have some boating books with detailed designs for ergonomic seats similar to what you are describing. I'm just not where they are right now. PM me if you are interested, and I can send the info in a few days.
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Old 14-05-2012, 18:08   #11
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Re: Comfortable cockpit seat profile.

Thanks everyone for your responses. When the job is finished, I will try to post some photos.
Regards,
Richard
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Old 14-05-2012, 18:55   #12
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Re: Comfortable cockpit seat profile.

just moved on and am downsizing..........
go to your favorite ADULT site or google WEDGE...........
The small one works in so many ways but needs a sunbrella cover.
My Experence
Mark
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