Product Details
The DHP®—Double Hinge Plate system consists of two precisely cut wood members connected by a unique, metal, double-hinge plate. The two wood members are sandwiched around a center block, which is made of LSL (laminated strand lumber) to add extra strength. The center block’s length is trimmed to match the connector plate’s holes. The main members are brought together to butt against the center block.
The DHP connector comprises two rectangular, light-gauge, galvanized steel plates. A center plate of similar gauge steel overlaps both outer plates and is hinged to them within this overlap area. Punching through the two overlapping plates forms the hinge and thus creates the truss joint.
Pieces of each plate are pierced from the mother plate on three sides and bent out on the fourth side to form a tooth. Each plate has multiple teeth grouped together, which is commonly called a gang nail.
Using a hydraulic press, the gang nails in the outer plates are embedded into both of the main wood members, and the center plate is concurrently embedded into the center wood member. The DHP system is now capable of rotating—unlike standard hinges. It’s also structurally capable of transmitting shear, axial, and moment loads between both main members.
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Components of the DHP |
Pre-pressed Double-Hinge Joint |
