Hinge and hinge joint for hingedly connecting structural frame members
AssigneeMitek Holdings, Inc.
InventorMichael M. Olden
Life of this patent
Estimating the term…
Abstract
A hinge for use in pairs hingedly connecting two generally coplanar wooden structural members of a wooden truss structure enabling folding of the structure to reduce its height for transport over the road, comprising two pivotally interconnected plates each having teeth for nailing them to the wooden members and one having fingers for engagement with a surface of a wooden member for accurate alignment of two of the hinges for being nailed to the two members at opposite faces thereof to form a hinged joint between the members, and hinged joints utilizing the hinges.
Claims17
A hinge for use in pairs for hingedly connecting two generally coplanar structural members for pivotal movement of one of said members relative to the other in the plane of said members about an axis transverse to the plane of said members, said hinge comprising first and second elongate sheet metal plates, each plate having one face constituting its outside face and the other face constituting its inside face, each said plate having a generally flat body portion and a generally flat extension from said body portion, the plates having their extensions overlapped with the outside face of the extension of the first plate in generally flatwise interengagement with the inside face of the extension of the second plate, and means pivotally interconnecting said overlapped extensions for pivotal movement of one of the plates relative to the other about an axis perpendicular to the plates, characterized in that one of the plates has plate locating means comprising fingers struck therefrom extending from the inside face thereof and having portions lying in a plane which is perpendicular to said one plate and which extends transversely with respect to said one plate, said portions being spaced apart in said plane and being adapted for engagement with a surface of one of said members transverse to the plane of said members for locating said one plate in a predetermined position relative to said one member, said body portion of each said plate being formed with nailing teeth extending from the inside face thereof constituting the plates as nailing plates for nailing of said first plate to one of said wooden members and the second plate to the other of said wooden members, said fingers being struck from said extension of said first plate and being longer than the teeth of said first plate with the tips of said fingers constituting said portions of the fingers located beyond the tips of the teeth of said first plate for sidewise engagement of said tips of the fingers with the surface of one of said members and with the tips of the teeth of said first plate adapted for engagement with a face of said one wooden member and with the tips of the teeth of the second plate adapted for engagement with a corresponding face of the other wooden member to locate the plates in said predetermined position relative to said wooden members whereby the nailing teeth of the plates may be driven into the wooden members.
A hinge for use in pairs for hingedly connecting two generally coplanar wooden structural members for pivotal movement of one of said members relative to the other in the plane of said members about an axis transverse to the plane of said members, said hinge comprising first and second elongate sheet metal plates, each plate having one face constituting its outside face and the other face constituting its inside face, each of said plates having a generally flat body portion and a generally flat extension from said body portion, the plates having their extensions overlapped with the outside face of the extension of the first plate in generally flatwise interengagement with the inside face of the extension of the second plate, and means pivotally interconnecting said overlapped extensions for pivotal movement of one of the plates relative to the other about an axis perpendicular to the plates, characterized in that the body portion of each of said plates is formed with nailing teeth extending from the inside face thereof constituting the plates as nailing plates for nailing of the first plate to the one of said wooden members and the second plate to the other of said wooden members, the teeth of each said plate being struck from the plate in such a pattern as to form first and second rows of slots in the plate on opposite sides of the longitudinal center line of the plate with the longitudinal axes of the slots in said first and second rows extending transversely of the plate, and third and fourth rows of slots with the longitudinal axes of the slots in said third and fourth rows extending transversely of the plate and interdigitated with and offset outwardly of the slots of the first and second rows, the teeth extending perpendicularly to the plate at the ends of the slots.
Dependencies are inferred from the claim text.