| 摘要 |
PURPOSE: A torque sensor device is provided to reduce or minimize a magnetic flux leakage from a magnetic flux focusing portion when a mounting section is transformed into a preset shape. CONSTITUTION: A torque sensor device(3) comprises a torsion bar(13), a multi-polar magnet(14), first and second magnetic yokes(31,32), first and second magnetic flux collectors(701), and a magnetic sensor(41). The torsion bar includes first and second shafts(11,12) and first and second end portions(13a,13b). The first and second end portions are fixed respectively to the first and second shafts for coaxially connecting the first and second shafts. The multi-polar magnet is fixed to one of the first shaft and first end portion of the torsion bar. The first and second magnetic yokes are fixed to one of the second shaft and second end portion of the torsion bar. The first and second magnetic flux collectors are formed separately from the first and second magnetic yokes. The magnetic sensor includes a magnetism sensing device.
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