Force measuring instrument with overload protection

Details Force measuring instrument with overload protection Force measuring instrument with overload protection

1996-07-22

1998-02-03

Dougherty, Elizabeth L.

Measuring and testing

Dynamometers

Responsive to force

G01L 100

Patent

active

057146942

ABSTRACT:
A force measuring instrument having at least one force sensor (16) and one force pickup element (13) resting directly or indirectly in spring-loaded fashion on the force sensor. A spring assembly (17; 25-28) is provided that presses the force pickup element (13; 23) against the at least one force sensor (16; 19-22) with a maximum force value to be measured. The direction of the force to be measured and acting upon the force pickup element (13; 23) is oriented counter to the force of the spring assembly (17; 25-28). As a result, when a force is exerted upon the force pickup element (13), the overall force action on the force sensor (16) is reduced, thus precluding the possibility of damage to or destruction of the force sensor by an excessive incident force.

REFERENCES:
patent: 4411159 (1983-10-01), Spear et al.
patent: 4949799 (1990-08-01), Wernimount
patent: 5109707 (1992-05-01), VanGerpen
patent: 5263375 (1993-11-01), Okada
patent: 5265470 (1993-11-01), Kaiser et al.
patent: 5423227 (1995-06-01), Polaert et al.
patent: 5488873 (1996-02-01), Delmas et al.
patent: 5510784 (1996-04-01), Polaert et al.

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