Balance mechanism of an industrial robot

Details Balance mechanism of an industrial robot Balance mechanism of an industrial robot

1990-02-07

1990-09-04

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

901 48, B66C 2372

Patent

active

049540432

ABSTRACT:
A balance mechanism of an industrial robot is provided with a first balance mechanism for a first arm which is swingably mounted to a stand of the robot and a second balance mechanism for a second arm which is swingably mounted to a distal end of the first arm. The first balance mechanism includes a flexible coupling device such as, for example, a chain, led through a guide, which couples between a coupling element of a coupling member which is mounted to a center of angular movement of a proximal end of the first arm and a spring having one end fixed to the stand and which is moved in the direction of deformation when the first arm is angularly moved. The second balance mechanism includes a counterbalancer disposed in the opposite side to an operation side of the second arm and a center of angular movement of the second arm constitutes a fulcrum. The balance mechanisms can be applied to the robot without exchanging parts greatly even if the robot is installed in any position.

REFERENCES:
patent: 4500251 (1985-02-01), Kiryu et al.
patent: 4728247 (1988-03-01), Nakashima et al.
patent: 4753128 (1988-06-01), Bartlett et al.
patent: 4784010 (1988-11-01), Wood et al.

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