Portable articulating tool support

A portable articulating support apparatus for supporting a hand-operated power tool while allowing movement of the tool in three dimensions, the apparatus comprising:

• a mounting device capable of disengageable attachment to a support element;
• a hinge member having two juxtaposed bores for receiving pins therethrough;
• a tool holder capable of engaging and supporting a hand-operated power tool while allowing swivelling of said tool about horizontal and vertical axes;
• a spacer arm having opposite ends with one end detachably engaged with the mounting device, and another end detachably engaged with the hinge member;
• and
• a counterbalance arm having opposite ends, with one end detachably engaged with the hinge member and an opposite end detachably engaged with the tool holder, said opposite end being movable in a vertical plane while said one end is supported by said hinge element, and having a balancing arrangement generating a force counteracting weight applied to said one end by said tool holder;
• wherein said mounting device, spacer arm, hinge member and counterbalance arm are detachably and rotatably engaged one with another by a plurality of removable vertically disposed hinge pins passing through vertically align bores in overlapping parts of said mounting device, spacer a hinge member and cold arm, said removable hinge pins having enlarged head at upper ends thereof shaped to be graspable by hand to facilitate compete removal of the pins from said bores, thereby allowing separation of said mounting device, spacer arm, hinge member and counterbalance arm for case of replacement, storage and transport thereof.

A tool holder for supporting a power tool on an articulating arm while allowing movement of the tool in three dimension, the holder comprising:

• a tool-mounting bracket equipped with a tool-clamping device;
• a bracket support connected to said tool-mounting bracket while allowing the bracket to swivel around a horizontal axis;
• and
• a load bearing shaft interconnected with the bracket support, said shaft being capable of attachment to a movable support while permitting swivelling of said tool holder about a vertical axis.