Patent ID: 9240298
Filing Date: 2016-01-19
CPC Classification: B29C,B29L,B60R,F16H,H01H

Claim Text:
1. A switch comprising: a substrate; a lid body provided to overlap the substrate to form a switch case; a movable board rotatably arranged in the switch case; a plurality of fixed contact points provided on the substrate; movable contact points provided on the movable board, at least one of the fixed contact points and at least one of the movable contact points being connected/disconnected with rotation of the movable board; and a connecting piece portion extending inside the substrate to be connected to at least one of the fixed contact points, and being exposed as a terminal outside of the switch case, wherein the substrate and the lid body respectively include opposing surfaces opposing with each other in a peripheral edge of the switch case, a concave streak portion is provided in one of the opposing surface of the substrate and the opposing surface of the lid body, the concave streak portion being provided with a first welding interference portion formed in a depth portion, a projecting portion is provided in the other of the opposing surface of the substrate and the opposing surface of the lid body, the projecting portion being fitted in the concave streak portion and being provided with a second welding interference portion formed in a predetermined section in an overlapping direction, a ring groove for accommodating a seal ring is formed in the one of the opposing surface provided with the concave streak portion and the opposing surface provided with projecting portion, and the other is formed as a seal surface making contact with the seal ring, when the substrate and the lid body overlap, the switch case is sealed by contact between the seal ring and the seal surface and the substrate and the lid body are jointed by the welding between the first welding interference portion and the second welding interference portion, and a release region for keeping a communicating state of an inside of the switch case with an outside until the seal ring makes contact with the seal surface in the jointing process between the substrate and the lid body is provided in any of the substrate and the lid body in a circumferential predetermined section.