Patent ID: 6178842
Filing Date: 2001-01-30
Classification: B25J,Y10T

Abstract:
An industrial robot comprising:a fixed base mounted on an installation surface at a predetermined height therefrom,a rotary base mounted on the fixed base rotatably around a vertical swing axis perpendicular to the installation surface and having a projecting portion which offsets from and projects outward from an outer surface of the fixed base,a first arm mounted on the projecting portion of the rotary base rotatably around a substantially horizontal first rotational axis parallel to the installation surface and having a distal end, a first longitudinal axis and a first longitudinal length,a second arm mounted on the distal end of the first arm rotatably around a substantially horizontal second rotational axis parallel to the first rotational axis and having a second longitudinal axis, anda wrist mounted on the distal end of the second arm rotatably around a second longitudinal axis of the second arm,wherein the first longitudinal length of the first arm is smaller than a distance between the first rotational axis and the installation surface, and the first arm is made operable to hang down from the first rotational axis in a position where the first longitudinal axis of the first arm is substantially perpendicular to the installation surface, andwherein a longitudinal axis of the second arm is offset from the second rotational axis in a direction toward the first rotational axis.