Patent ID: 7248140

Claim:
A switch device comprising: a body with a top opening and two slots defined through an underside of the body, a first terminal and a second terminal extending through the two slots and a first contact point connected to the second terminal, a recess defined in an inside of the body and a hole defined through a wall of the body and communicating with the recess; a bi-metallic plate having a first end fixed to the first terminal and a second contact point connected to an underside of a second end of the bi-metallic plate, the second contact point located above the first contact point; a switch member pivotably engaged with the top opening of the body; a link assembly including a pull member and a push member, an upper end of the pull member pivotably connected to the switch member and a lower end of the pull member supporting the underside of the second end of the bi-metallic plate, an upper end of the push member pivotably connected to the switch member and a lower end of the push member being in contact with the bi-metallic plate, a spring biased between the push member and the body so as to provide a push force to the push member, and an adjusting assembly including a board movably received in the recess and an adjusting member movably extending through the hole and being in contact with a first side of the board, a biasing member having a first end connected to the second end of the bi-metallic plate and a second end of the biasing member being engaged with a second side of the board, the board being moved axially in the recess by operating the adjusting member and a biasing force of the biasing member relative to the bi-metallic plate is adjusted.