AUTOMATIC REGULATED TAPPET SWITCH, PARTICULARLY BRAKE LAMP SWITCH FOR AUTOMOBILE

摘要

PROBLEM TO BE SOLVED: To install an automatic regulated tappet switch or the like with a regulation shift of any of them avoided by enabling a tappet and a slider to move from a position where they can make mutual movement and adjustment and a position where they are installed to a lock position and to move in the direction reverse to the above. SOLUTION: In order to enable the rotation of a tappet 19 relative to a slider 9, a projection 25 elongated to the operational direction is provided on the outside wall of the tappet 19. When a tappet switch 1 is attached to an installation opening 3, the tappet 19 is held non-rotatably in the installation opening 3 owing to its contact with the side surface of the notch of the installation opening 3. In order to enable the switch to be installed in the installation opening 3 at only one specified position, a fixing means is provided to the projection of a housing 7. The fixing means engages with the rear side of an installation part, when the housing 7 is rotated and the switch is jointed to its installation part 5. When the housing 7 is rotated simultaneously, the tappet 19 is held inside the installation opening 3 non-rotatably owing to the projection 25 with a notch so as to carry out the locking of the tappet to a slider unit.