Patent ID: 7244896

Claim:
A multipoint scale having a plurality of weight sensor units for weighing a load applied to a placement section, each weight sensor unit comprising: a weight sensor having a strain-sensitive part; a first flexible elastic member for receiving the load applied to the placement section; a load transmission part for transmitting the load from the first flexible elastic member to a power point of the weight sensor; a load support part for supporting a fulcrum of the weight sensor; and a second flexible elastic member for receiving the load applied to the load support part and for maintaining a direction of the load applied to the strain-sensitive part of the weight sensor to be vertical in accordance with a deflection of the first flexible elastic member; wherein the weight sensors of the plurality of weight sensor units form a Wheatstone bridge circuit; wherein the multipoint scale further includes a fixing plate for integrally connecting the plurality of weight sensors via the second flexible elastic members, the fixing plate fixing each of the second flexible elastic members at a predetermined position; and wherein the Wheatstone bridge is configured to add weight values detected respectively by the strain-sensitive parts of the respective weight sensors, and to cancel the effects of a moment applied to the respective strain-sensitive parts when the weight sensors are moved integrally with respect to the fixing plate.