FLOW SENSOR AND FLOW DETECTION DEVICE

PROBLEM TO BE SOLVED: To provide a flow sensor having a long life.SOLUTION: A flow detection device 10 comprises a sensor body 41 secured to a tube member 20 and extending to the inside of the tube member 20, a revolving shaft 71 provided in the sensor body 41, a paddle 60 supported by the revolving...

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Bibliographische Detailangaben
Hauptverfasser: SADOSHIMA SHIGERU, MORITA YUMA, SHIMA TAISHI, NARUMI KAZUYUKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a flow sensor having a long life.SOLUTION: A flow detection device 10 comprises a sensor body 41 secured to a tube member 20 and extending to the inside of the tube member 20, a revolving shaft 71 provided in the sensor body 41, a paddle 60 supported by the revolving shaft, and a detection part 50. The paddle 60 is provided with a second contact face 63a disposed at a position facing a first flat face 25 of the tube member 20 in a first rotation direction R1 separating from an initial position P1 abutting on a second protrusion 46 of the sensor body 41, and a third contact face 63b disposed at a position facing a contact face 48a of a first contact part 48 of the sensor body 41 in the first rotation direction R1.SELECTED DRAWING: Figure 2 【課題】 本発明は、寿命の長い流量センサを提供する。【解決手段】 流量検出装置10は、管部材20に固定され、管部材20内に突出するセンサ本体41と、センサ本体41に設けられる回転軸71と、回転軸に支持されるパドル60と、検出部50と、を備える。パドル60は、センサ本体41の第2の突出部46に当接する初期位置P1から離れる第1の回転方向R1に管部材20の第1の平面25に対向する位置に配置される第2の当接面63aと、第1の回転方向R1にセンサ本体41の第1の当接部48の当接面48aに対向する位置に配置される第3の当接面63bと、を備える。第1の回転方向R1に管部材側に対向する第2の当接面63aと、を備える。【選択図】図2