Stabilization system for a pantographic data entry device

Details Stabilization system for a pantographic data entry device Stabilization system for a pantographic data entry device

1981-02-02

1983-09-06

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414738, 2481231, 2482801, B25J 900

Patent

active

044026463

ABSTRACT:
Disclosed is a stabilization system for an apprentice pantographic data entry device having at least six pivot axes of rotation. The stabilization system is formed of a plurality of pivoted linkages forming at least one parallelogram which support weights counterbalancing the arms of apprentice pantographic data entry device. The linkages and a series of pulleys rotate the counterweights in response to the movement of the arms. In a first embodiment, a pair of parallelograms are symmetrically disposed about the first arm. In a second embodiment, a single parallelogram is disposed on one side of the arms. In a third embodiment, a single parallelogram is disposed in a plane defined by the first and second arms.

REFERENCES:
patent: 3073343 (1963-01-01), Mowell et al.
patent: 4241891 (1980-12-01), Rudolph
patent: 4300198 (1981-11-01), Davini

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