Impact sensing apparatus

Details Impact sensing apparatus Impact sensing apparatus

1991-03-22

1992-09-01

Herrmann, Allan D.

Machine element or mechanism

Automatic operation or control

102252, 180282, 280734, G05G 1700

Patent

active

051429225

ABSTRACT:
An impact sensing apparatus includes a housing, a weight freely rotatably and movably supported within the housing at a position offset from the centroid of the weight, a firing lever pivotally supported on the housing for engaging the weight, and a spring stretched between the housing and the firing member for constantly biasing the firing member in a direction which engages it with the weight. The weight is held at a predetermined position, though its engagement with the firing pin, owing to the biasing force of the spring. When the apparatus is subjected to a prescribed acceleration under these conditions, the weight moves and rotates against the biasing force of the spring, thereby disengaging the firing pin and allowing it to turn. Erroneous operation ascribable to small, momentary shocks, as when a vehicle is traveling on a bumpy road, is prevented.

REFERENCES:
patent: 2871310 (1959-01-01), Porcheddu
patent: 3965917 (1976-06-01), Speck
patent: 4742839 (1988-05-01), Stock
patent: 4927172 (1990-05-01), Motozawa
patent: 5024157 (1991-06-01), Nishikawa

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