Power work arm

Details Power work arm Power work arm

1992-07-31

1993-06-08

Huppert, Michael S.

Machine element or mechanism

Control lever and linkage systems

74106, 414680, 901 15, 901 27, B25J 1800

Patent

active

052169308

ABSTRACT:
A device with a pivoting work arm for carrying and positioning a tool which is moved by a modified Watts linkage powered by a linear actuator having a true straight line motion. The modified Watts linkage has relatively short links resulting in the center of the middle link following an arcuate path. The center of the middle link is drivingly connected to the linear actuator by a pivoting link or a cam. To provide shock absorption for the work arm as it reaches its fully extended position, the modified Watts linkage is coupled to a follower arm yieldably biased by a spring.

REFERENCES:
patent: 709167 (1902-09-01), Martin
patent: 3221568 (1965-12-01), Ross
patent: 4559839 (1985-12-01), Legille et al.
patent: 4613276 (1986-09-01), Blatchford
patent: 4706511 (1987-11-01), Houston
Ingenious Mechanisms, vol. 1, Industrial Press Inc., 1968, pp. 391-392.

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