Robot arm assembly
First Claim
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1. A robot arm assembly comprising:
- a turret base unit;
a lower arm pivotable with respect to the turret base unit via a lower arm drive train;
an upper arm pivotable with respect to the lower arm at an elbow including a first sprocket rotatable with respect to the lower arm but fixed with respect to the upper arm;
a second sprocket associated with the lower arm rotated by an upper arm drive train, said upper arm drive train including an upper arm drive shaft fixed with respect to a sleeve within the second sprocket; and
a chain centrally located and extending within the lower arm between the first and second sprockets for raising and lowering the upper arm.
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Abstract
A robot arm assembly includes a turret, a lower arm pivotable with respect to the turret, and an upper arm pivotable with respect to the lower arm.
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Citations
21 Claims
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1. A robot arm assembly comprising:
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a turret base unit; a lower arm pivotable with respect to the turret base unit via a lower arm drive train; an upper arm pivotable with respect to the lower arm at an elbow including a first sprocket rotatable with respect to the lower arm but fixed with respect to the upper arm; a second sprocket associated with the lower arm rotated by an upper arm drive train, said upper arm drive train including an upper arm drive shaft fixed with respect to a sleeve within the second sprocket; and a chain centrally located and extending within the lower arm between the first and second sprockets for raising and lowering the upper arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A robot arm assembly comprising:
a turret base unit including; a V-ring, a turret gear fixed with respect to the V-ring and driven by a motor and drive train, and a set of V-wheels for rotatably supporting the V-ring; a lower arm pivotable with respect to the turret base unit via a lower arm gear box mounted to the turret base unit; an upper arm pivotable with respect to the lower arm at an elbow via an upper arm gear box mounted to the turret base unit, said elbow including a first sprocket rotatable with respect to the lower arm but fixed with respect to the upper arm;
a second sprocket associated with the lower arm rotated by the upper arm gear box and a chain extending within the lower arm between the first and second sprockets for raising and lowering the upper arm; andan upper arm drive shaft fixed with respect to a sleeve within the second sprocket and driven by the upper arm gear box. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
Specification