Patent ID: 9082570
Filing Date: 2015-07-14
Classification: H01H

Abstract:
1. A switch device comprising: a knob; an upper case for supporting the knob; a lower case provided with a fixed contact point; a movable contact piece connected to/disconnected from the fixed contact point; and a movable member linking to the movable contact piece, the knob being coupled to the movable member to switch connection/disconnection between the fixed contact point and the movable contact piece by an operation of the knob, wherein the upper case and the lower case form a contact point accommodating chamber for surrounding the fixed contact point and the movable contact piece, the movable member is arranged in the contact point accommodating chamber, the knob is provided with a lever for coupling the movable member to the knob, the contact point accommodating chamber has an upper wall provided with a slit hole for passage of the lever, the movable member is provided therein with a recessed portion having a connecting portion to the lever, and the movable member slides while an opening end surface of the recessed portion maintains surface contact with a lower surface of the upper wall surrounding the slit hole in such a manner that there are no gaps between the opening end surface of the recessed portion and the lower surface of the upper wall at least within a region on the lower surface of the upper wall that continuously surrounds the slit hole.