Robot arm

Details Robot arm Robot arm

1984-06-19

1987-11-24

Valenza, Joseph E.

Material or article handling

Vertically swinging load support

Shovel or fork type

901 15, 901 21, 414 7, 414 48, B25J 1100

Patent

active

047085789

ABSTRACT:
A robot arm consisting of an upper arm link and a lower arm link which are interconnected by a uniaxial joint. The upper arm link is connected with a structure via a universal joint. In order to attain a weight balance, a toggle lever is placed on the upper arm link, on whose one lever arm an upwardly directed equalizing force acts and whose other lever arm is connected to the lower arm link. If both arm links are in alignment with one another, then the point of application of force on the one lever arm has its greatest distance to the universal joint. If, on the other hand, the lower arm link is swung out of its alignment with the upper arm link, then the distance between the point of application of force and the universal joint is decreased.

REFERENCES:
patent: 3587872 (1971-06-01), Pauly
patent: 3631737 (1972-01-01), Wells
patent: 4107948 (1978-08-01), Molaug
patent: 4500251 (1985-02-01), Kiryu et al.

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