Apparatus for weight balancing an industrial robot

Details Apparatus for weight balancing an industrial robot Apparatus for weight balancing an industrial robot

1982-02-24

1984-06-19

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414 1, 414917, B25J 1100

Patent

active

044551207

ABSTRACT:
An industrial robot of the type comprising a frame mounted for rotation about a horizontal axis and having a pivot arm which is pivotally attached to the frame for pivotally supporting a boom, is provided with a counterbalancing device for equalizing the weight of the boom. The counterbalancing device includes a toggle lever mounted for pivotal motion about a fixed horizontal axis that extends at right angles to the axis of rotation of the frame, a counterweight or piston being connected to the toggle lever at a point spaced from one side of the pivot axis of the toggle lever, and a linkage connecting a second point on the toggle lever, located on the other side of its pivot axis, to the pivot arm at a location that is spaced from the pivot axis between the pivot arm and frame.

REFERENCES:
patent: 3031090 (1962-04-01), Stephenson
patent: 3601260 (1971-08-01), LeGuennec
patent: 3664517 (1972-05-01), Germond et al.
patent: 3883105 (1975-05-01), Matsumoto
patent: 3923166 (1975-12-01), Fletcher et al.

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