Patent ID: 6791043
Filing Date: 2004-09-14
Classification: F16H,H01H

Abstract:
A positioning structure of an inhibitor switch including a switch housing having a terminal block having stationary contacts; and a moving block fitted on a manual shaft of an automatic transmission and having a fitting hole and moving contacts for rotating with respect to the terminal block, the inhibitor switch being fixed on the housing of the automatic transmission for detecting the shift position of the automatic transmission electrically from a rotational position corresponding to a relationship between the stationary contacts and the moving contacts in accordance with the rotation of the manual shaft of the automatic transmission, which comprises:a tack-fastening member fastened between the terminal block and the moving block in advance, before the inhibitor switch is fixed on the automatic transmission, at corresponding rotation positions for detecting a specific shift position of the automatic transmission and adapted to be broken at a set torque; wherein the tack-fastening member is made of a resin and includes a first fixed portion to be fixed on the side of the terminal block, a second fixed portion to be fixed on the side of the moving block, and an easily broken portion for connecting the first and second fixed portions; the first and second fixed portions are formed into a ring shape generally concentric to the fitting hole of the moving block; and the easily broken portion is provided in plurality in circumferential directions between the first and second fixed portions.