Mechanical joint construction

An improved mechanical joint construction for pivotally interconnecting two members of an orthopaedic or orthotic device to limit the degree of pivotal movement and to adjustably control the position of limited pivotal movement of the two members, said joint construction comprising:

• (a) first securement means for rigid attachment to a first member to be interconnected, said first securement means having a generally flat planer surface, pivot pin means extending perpendicularly out from said surface, and a protrusion fixed to and extending out from said surface and being spaced radially on said surface from said pivot pin means;
• (b) second securement means for rigid attachment to a second member to be interconnected, said second securement means including an inner plate member having a serrated outer periphery and a opening therethrough for receipt of said pivot pin means to support said inner plate member for rotation thereon, an arcuate slot in said inner plate member spaced radially from said opening therein and receiving said protrusion for movement therein between ends of said slot to limit relative rotational movement of said inner plate member on said pivot pin means and with respect to said first securement means, said second securement means further including an outer member having a portion for attachment to the second member to be interconnected, said outer member having a serrated opening therein for surrounding the serrated periphery of the inner plate member with the serrations of the plate member and outer member intermeshed to fix the outer member against relative rotation with respect to the inner plate member;
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• (c) means for securing said inner plate member and outer member in intermeshed engagement on said pivot pin means to permit their limited rotational movement thereon within the limits defined by movement of said protrusion in said slot, and said outer member being arcuately adjustably positionable about the serrated inner plate member upon removal of said securing means to angularly reposition the location of limited rotational movement between said first and second securement means and the members to which they may be attached for interconnection.