Boom latching system

Details Boom latching system Boom latching system

1983-07-01

1984-11-20

Friedman, Carl D.

Static structures (e.g., buildings)

Controlled by condition responsive means

52118, 212267, E04H 900

Patent

active

044831099

ABSTRACT:
A latching system is disclosed for a telescopic boom, and comprises a ladder structure for positionment longitudinally along a side of a smaller boom section, and a latch plate assembly for a pivotal attachment to a large boom section. Bias means is further provided for applying a biasing force tending to move the latch plate into the ladder detent slot, and counter bias means for applying counter bias force to the latch plate. Linkages are adapted to extend between the latch plate and the tensioned chains which actuate the small boom section outward and inward relative to the large boom section, whereby the tension forces within the chains serve to provide counter biasing forces to the latch plate mechanism.

REFERENCES:
patent: 3561610 (1971-02-01), Buckert
patent: 3658188 (1972-04-01), Lamer et al.
patent: 3940110 (1976-02-01), Motoda
patent: 4221089 (1980-09-01), Spain

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