Patent ID: 9002664
Filing Date: 2015-04-07
Classification: G01F

Abstract:
1. A flow counter that transmits rotation of a flow detection driving gear to a pilot, a first pointer, and a flow indication section comprising a plurality of digit wheels, by means of a gear train, to indicate an operating state of the flow detection driving gear by the pilot and the first pointer and to indicate a total amount of flow by the flow indication section, wherein the gear train comprises: a main gear train section that comprises a plurality of gears arranged consecutively from the flow detection driving gear to the digit wheel of the flow indication section and transmits the rotation of the flow detection driving gear to the pilot and the flow indication section; a branch gear section that comprises at least one arranged gear which is branched from a predetermined gear of the main gear train section and transmits the rotation of the flow detection driving gear to the first pointer; and a rotation sensor comprising a rotation detection member; wherein the pilot is fixed to a shaft of one of the plurality of gears, which is a component of the main gear train section; wherein the at least one arranged gear is mounted to rotate integrally with a rotating shaft of the first pointer; wherein the rotation detection member is integrally rotatably mounted on the rotating shaft of the first pointer; wherein an amount of the rotation of the rotating shaft is electrically detected by the rotation sensor; and wherein the predetermined gear of the main gear train section and the flow detection driving gear mesh with each other.