Patent ID: 7076990

Claim:
A weight measuring device comprising: a load cell formed of a strain member deforming according to a weight applied thereto, a plurality of strain gauges bonded to the load cell and connected to form a Wheatstone bridge so that an output of the Wheatstone bridge is converted into a value of the weight, and two weight receptacles attached to the strain member so that when a load is applied to one of the weight receptacles, a strain of the strain member becomes smaller than that when the load is applied to the other of the weight receptacles, said strain member including a fixed portion, and a free end portion divided into a first portion with the strain gauges and a second portion without the strain gauges along a direction that the load is applied, the one of said weight receptacles being attached to the first portion and the other of said weight receptacles being attached to deform the first and second portions.