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Piano Hinges. Was == Latest Project
On Sun, 16 Jun 2013 14:54:50 -0500, Leon lcb11211@swbelldotnet wrote:
On 6/16/2013 1:09 PM, woodchucker wrote: Not sure I understand that. Piano hinges have been used to hold heavy tool doors on work cabinets for a long time. I would think they actually reduce sag since there are more points of contact. While not as robust as a regular door hinge you would not be able to fit a door hin in this instance. So I'm not so sure I think they lead to sag.. I think it depends on what the load is, and how it's used. I think having a slight rebate for the hinge helps avoid issues. OK, a picture is worth a thousand words. http://www.flickr.com/photos/lcb11211/9061338634/ If you will notice, the brand new piano hinge pictured, has gaps between the "ears" on each side of the hinge. Because of this gap the "ears" that are actually supporting all of the weight are going to wear more quickly and or the ones carrying the weight will distort until some of the other ears begin to engage and help carry the load. The the gap closes, the door settles/sags. When used in a horizontal position the ill fitting halves do not matter because most of the load is then placed on the hinge pin vs. the ear tops and bottoms when used vertically. Thanks Leon. Perfectly clear from the photo. I bought some solid brass continuous for some window seats a few years back that were very high quality, and the price reflected it. I imagine they would also wear quickly (brass) in the vertical position. Thanks to all the folks who commented. |
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