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March 2023 #15284 Page #86
Truss Plates and Nail Inventions from Finland By Tuomo Poutanen In his series on The Development of the Truss Plate, Joe Kannapell is recounting many interesting details on the evolution of truss plates in the U.S. For another perspective, this article will focus on eight relevant nail plate truss inventions from Finland —two made by Matti Turulin, two by Markku Karhumäki, and four by me. From saunas and ice skates to Fiskars scissors and Nokia phones, Finnish ingenuity continues to evolve with the ages.
In 2015, Matti Turulin made an automatic truss assembly line invention, patent US9126350B2, where robots make an assembly jig using magnetic grippers on a standing steel plate. The same robots assemble the webs and the chords fully automatically. No manual labor is involved, and only one operator is needed mainly to look after disturbances. This invention has been developed further and successfully commercially implemented in multiple facilities worldwide.
In 2021, Matti Turulin received patent FI128892B for his improved truss assembly invention where the truss is extruded in a short assembly station. Currently, this invention is in the development phase.
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