Torque wrench with measurements independent of hand-hold positio

Details Torque wrench with measurements independent of hand-hold positio Torque wrench with measurements independent of hand-hold positio

1988-10-03

1991-01-08

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

7386226, B25B 23142

Patent

active

049826123

ABSTRACT:
A torque measuring wrench includes a deflection beam provided with a socket head at one end and having a region of reduced cross-sectional area. Four strain gauges are mounted on the beam and connected in a measuring bridge, with one gauge disposed at the region of reduced cross-sectional area and the other gauges disposed closer to the ratchet head. A tubular handle is connected to the othe end of the beam and encloses battery-powered control circuit including indicating means. The torque wrench measurements are independent of the position along the handle at which the force is applied by the user.

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