Rounded profile on hinged flap

[SteveF]

I have seen some furniture that has a concave profile on one side of hinged timber and convex on the other
is this a design feature or would it prevent fingers getting trapped please?

Steve

 

[marcros]

it just looks more decorative, I think.

 

[SteveF]

it just looks more decorative, I think.

ok thanks

I was trying to prevent finger traps

Steve

 

[AndyT]

There is a classic design solution to this problem, used on drop leaf tables for several hundred years. It's like your illustration but better - there is no fragile thin edge; the hinged part is supported on the fixed one, and it won't let crumbs drop through. It's called a rule joint.

It looks like this:

or better illustrated here: http://www.philadelphiafurnitureworkshop.com/view/show/Rulejointdropleaftableseminar.htm

For details on how to make it, watch this http://video.unctv.org/video/2265289523/.

 

[Peter Sefton]

I cover the Rule joint and hinge in this article
http://www.peterseftonfurnitureschool.c ... hinges.pdf
My feeling is your design will bind and the edges will break off in time.
Cheers Peter

 

[Drudgeon]

I have never seen it done as per the detail at the top, i.e.: with a butt style hinge face fixed, it is a detail I have regularly come across with pivoting doors, like ones with dorma style floor springs, and similar Jib door designs, and in that scenario, it is used to enable the gap between the door and frame to be kept to a minimum.

Looking again at your detail in the OP, there is no timber to fix the frame-side flap to?

 

[SteveF]

sorry my drawing was rubbish

the rule joint was what i had in mind

not the easiest joint in the world..and interesting to watch it made by hand

thankyou all

Steve