Patent ID: 7798019

Claim:
A torque detecting apparatus for detecting rotational torque comprising: a first shaft and a second shaft which are coaxially connected to each other by a torsion bar; a first rotating member fixedly fitted onto said first shaft and integrally rotating with said first shaft; a second rotating member surrounding an outer circumference of said first rotating member and integrally rotating with said second shaft; and a facing portion which is provided between said first shaft and said second shaft, and makes said first shaft and said second shaft face each other in the axial direction by a space smaller than a space between a lower end face of said first rotating member and an upper end face of said second shaft, wherein a longitudinal distance between said lower end face of the said first rotating member and said upper end face of said second shaft is longer than a longitudinal distance between said first shaft and said upper end face of said second shaft, said torque detecting apparatus detects rotational torque applied to said first shaft and said second shaft, by using a relative angular displacement generated between said first rotating member and said second rotating member, accompanying with a twist of said torsion bar, and said longitudinal distance between said first shaft and said upper end face of said second shaft is more than zero.