A weight measuring device comprising a base fixed to an object, a strain detection
substrate fixed to the base, a fitting pin fixed to the strain detection substrate,
an arm rotatably attached to the base by a support pin, and a leaf spring with
one end fixed to the arm and the other end supported by the fitting pin. The weight
measuring device further comprises a second arm with one end receiving the load
of the object to be measured and the other end fixed to the arm through a link
pin. By the configuration of the present invention, the load applied to the strain
detection substrate is reduced, and a weight measuring device improved in detecting
resolution is obtained. Furthermore, the weight measuring device of the present
invention is unitized, and the weight measuring device can be easily built into
various equipment.
