Ergonomic equipment arm
First Claim
1. An arm supporting a computer video monitor on an ordinary desk or table and allowing the monitor to be moved into different orientations, comprisinga computer video monitor, andan arm supporting said computer video monitor, said arm comprisingan arm member having a base end and a monitor end,a base adapted to be detachably secured to the ordinary desk or table,a first rotatable joint rotatably connecting said base to said base end of said arm member, for permitting rotation of said arm member with respect to the desk or table, said first rotatable joint being adapted to permit rotation about vertical and horizontal axes,a friction member associated with said first rotatable joint to cause friction in the rotation about the horizontal axis of said first rotatable joint,a counterbalance attached to said arm member to support the weight of the monitor and to interact with said friction member to cause the supported monitor to stay in any desired one of a plurality of vertical positions above the desk or table, while also allowing the monitor to be moved easily by hand among said plurality of vertical positions, anda second rotatable joint at said monitor end of said arm member for permitting rotation of the supported monitor with respect to said arm member, said second rotatable joint being adapted to permit rotation of said monitor about vertical and horizontal axes to permit said monitor to be rotated relative to said arm member into any desired one of a plurality of positions and remain in said desired position.
7 Assignments
0 Petitions
Accused Products
Abstract
A mounting arm is disclosed on one end of which a piece of electronic or other equipment is mounted and the other end of which is detachably fastened to the edge of a supporting surface. The arm has three moving joints that permit the equipment fastened thereto to be moved with multiple degrees of freedom for desired positioning of the equipment. One joint utilizes a friction washer assembly and a preloaded torsion spring counterbalancing the weight of the equipment. The torsion spring tension is adjustable to compensate for differing weights of equipment on the one end of the arm. Another joint utilizes a friction ball joint arrangement having double concentric friction ball surfaces in an assembly that permits multiple degrees of freedom of motion and is easily removed from the remainder of the arm without disassembling the ball joint.
157 Citations
13 Claims
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1. An arm supporting a computer video monitor on an ordinary desk or table and allowing the monitor to be moved into different orientations, comprising
a computer video monitor, and an arm supporting said computer video monitor, said arm comprising an arm member having a base end and a monitor end, a base adapted to be detachably secured to the ordinary desk or table, a first rotatable joint rotatably connecting said base to said base end of said arm member, for permitting rotation of said arm member with respect to the desk or table, said first rotatable joint being adapted to permit rotation about vertical and horizontal axes, a friction member associated with said first rotatable joint to cause friction in the rotation about the horizontal axis of said first rotatable joint, a counterbalance attached to said arm member to support the weight of the monitor and to interact with said friction member to cause the supported monitor to stay in any desired one of a plurality of vertical positions above the desk or table, while also allowing the monitor to be moved easily by hand among said plurality of vertical positions, and a second rotatable joint at said monitor end of said arm member for permitting rotation of the supported monitor with respect to said arm member, said second rotatable joint being adapted to permit rotation of said monitor about vertical and horizontal axes to permit said monitor to be rotated relative to said arm member into any desired one of a plurality of positions and remain in said desired position.
Specification