PROBLEM TO BE SOLVED: To improve performance of torque measurement devices of a bicycle, a pedelec, or an e-bike comprising a free running wheel.SOLUTION: A freewheel hub 2 comprises a rotating hub shell 6 for carrying a free running wheel. Torque is transferred to the rotating hub shell 6 via a torque transmitting member 12. The applied torque is transmitted to magneto-elastically active regions R1, R2 including magnetically polarized regions, attached to a part of the torque transmitting member 12. The magnetic polarization becomes increasingly helically-shaped as the applied torque increases. A magneto-elastic sensor means has two pairs of magnetic field sensors S11, S12 and S21, S22 that are arranged proximate to the magneto-elastically active regions R1, R2 to generate signals corresponding to a torque-induced magnetic flux emanating from the magnetically polarized regions.SELECTED DRAWING: Figure 1

    【課題】自由走行輪を有する自転車、電動アシスト自転車、又は電動自転車のトルク測定装置の性能を向上させる。【解決手段】自由輪ハブ2は、自由走行輪を担持するための回転ハブシェル6を備える。トルクは、トルク伝達部材12を介して回転ハブシェル6に伝搬される。作用したトルクはトルク伝達部材12の一部に取り付けられた磁気分極領域を含む磁気弾性活性領域R1,R2に伝達される。磁気分極は、作用したトルクが増大するにつれて次第にらせん形状になる。磁気弾性センサ手段は2対の磁場センサS11,S12、S21,S22を有し、磁気分極領域から発生するトルク由来の磁束に対応する信号を出力するために磁気弾性活性領域R1,R2の近くに配置される。【選択図】図1


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    Title :

    FREEWHEEL HUB COMPRISING MAGNETO-ELASTIC SENSOR, AND BICYCLE, PEDELEC, FAST PEDELEC, OR E-BIKE COMPRISING FREEWHEEL HUB


    Additional title:

    磁気弾性センサを備える自由輪ハブ、および自由輪ハブを備える自転車、電動アシスト自転車、高速電動アシスト自転車、又は電動自転車


    Contributors:

    Publication date :

    2017-08-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer




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