Pin Joint

Pin Joint is one of the most commonly applied techniques for joining in various products. It is used from wooden furniture design and in metal works. It is perhaps the earliest technique that man had invented for joining firmly two members together. It behaves like a nail, which would firmly put two things together.

Plate 7A Furniture	7B Pin Joints- wood	7C Metal Pin Joints

(Source:http://www.google.co.in/search?q=Universal+Joints&hl=en&prmd=imvns&tbm=isch&tbo=u&
source=univ&sa=X&ei=BR5UUMqGJpHJrQeuioDYDg&ved=0CDYQsAQ&biw=1332&bih=581#hl=en&
tbm=isch&sa=1&q=Pin+Joints&oq=Pin+Joints&gs_l=img.12...1007276.1008018.0.1010493.3.3.0.0.0
.0.0.0..0.0...0.0...1c.1.UiU7pNAwfA4&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=507cb4cdb75a83f0&biw
=1332&bih=581 ; Sept. 15, 2012

From ancient period ‘pin-joint’ has become one of most effective simple joining solutions. In wood furniture (plate 7A) usage of wooden-pin for joining two members are most effective. Using metal nail for joining woods becomes loose after a few years because of metal rusting and continuous pressure. On the other hand it is found that wood-nails (plate 7B) become part of the same material (wood) and remains for years. The expansion and contraction because of weather conditions, wood nails accommodate the minor changes and remain firm for years. Metal pin-joint (plate 7C) is more effective on metal body.