Patent ID: 8607649

Claim:
A torque sensor in which a multi-pole permanent magnet is fixed to one of a first shaft and a second shaft linked via a torsion bar, a first rotating yoke and a second rotating yoke each having provided at equal intervals in a peripheral direction a plurality of claw portions facing the permanent magnet are fixed to the other of the first shaft and the second shaft, and a magnetism detection element is disposed between a first magnetism-collecting yoke and a second magnetism-collecting yoke, wherein the first and second rotating yokes are formed into an identical shape and an identical size, and the claw portions provided respectively on the rotating yokes are alternatingly disposed in a peripheral direction within a plane extending perpendicular relative to longitudinal axes of the first shaft and the second shaft, and the first and second magnetism-collecting yokes are mold bonded to a semicircular fixed holder at positions spaced in a longitudinal axial direction of the first and second shafts, such that the first and second magnetism-collecting yokes respectively face the first and second rotating yokes for reducing a dimension of the torque sensor in a radial direction.