Patent ID: 6234003
Filing Date: 2001-05-22
Classification: F16J,G01L,G01M

Abstract:
A method for judging whether or not a front end of an insertion member has been deformed when said insertion member is inserted onto a shaft, said method comprising the steps of:moving said insertion member to a first position on said shaft;moving the insertion member to a second position on the shaft at a first predetermined velocity;moving the insertion member back to the first position at a second predetermined velocity;moving the insertion member back to the second position at a third predetermined velocity;detecting an insertion force of said insertion member based on a relation between the first, second and third predetermined velocities; andjudging a deformation of said front end, based on a result of the detection, wherein the insertion member includes an opening formed in a substantially same shape as an outer periphery of the shaft and the front end of the insertion member contacts the shaft and comprises a shape of a thin blade continuous in a circumferential direction of the shaft.