Patent ID: 6370966
Filing Date: 2002-04-16
Classification: B62D,G01L

Abstract:
An input torque detecting device for power steering, comprising:an input shaft to which a torque is applied from a steering wheel side; an output shaft for linking to a steering side, one of the input shaft and the output shaft having a section of enlarged diameter; a torsion bar connecting the output shaft to the input shaft; a cylindrical sleeve slidably disposed on the input shaft and the output shaft, the sleeve having an orthogonally projecting undulation in an outer circumference thereof; a plurality of diagonal splines, formed at the section of enlarged diameter, and at an inner circumference of the sleeve, the diagonal splines extending in a direction diagonal to the axial direction, the diagonal splines at the section of enlarged diameter engaging with the diagonal splines at the inner circumference of the sleeve so as to convert relative rotation between the input shaft and the output shaft to a sliding motion of the sleeve in the axial direction; means engaging one of the input shaft and the output shaft with the sleeve so as to restrict to the axial direction sliding movement of the sleeve with respect to the one of the input shaft and the output shaft; and means, including a detection lever engaged with the undulation, for detecting an amount of the sliding movement of the sleeve.