Load sensor and pallet truck incorporating the same

Details Load sensor and pallet truck incorporating the same Load sensor and pallet truck incorporating the same

G - Physics

01

L

G01L 1/22 (2006.01) G01G 3/14 (2006.01) G01G 19/08 (2006.01)

Patent

CA 2068395

ABSTRACT OF THE DISCLOSURE A load sensing unit having a plate member which can be secured in position in a load supporting machine, and having a tongue connected to the plate, a plurality of load sensing gauges secured to the tongue, at least two of the gauges being placed in tension by a load on the tongue, and at least two of the gauges being placed in compression by a load on the tongue, electrical connection means connecting the gauges, whereby the gauges in tension, are connected in series with the gauges in compression on opposite sides of a bridge circuit, a load bearing device on the tongue, on which a load may be applied to the tongue, to cause deflection, deflection of the tongue in turn placing at least two of the strain gauges in tension, and at least two of the strain gauges in compression, and electrical circuit means connected to bridge circuit to receive signals from the strain gauges, and signal device responsive to signals from the strain gauges to detect signals from the strain gauges in tension, and to detect signals from strain gauges in compression, and to generate load signals.

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