US 7,557,315 B2
	Limit switch with two operation units controlled by a single control member
Ming-Min Chen, Pitou Township, Changhua County (Taiwan)
Assigned to J-Star Motor Industrial Co., Ltd., Taipei (Taiwan)
Filed on Feb. 24, 2006, as Appl. No. 11/360,443.
Prior Publication US 2007/0199808 A1, Aug. 30, 2007
Int. Cl. H01H 3/16 (2006.01); H01H 3/18 (2006.01); H01H 15/14 (2006.01)

U.S. Cl. 200—47

5 Claims

1. A limit switch comprising: a body composed of a first part and a second part, an interior space defined in the body; a control member received in the body and having a first end protruding from the body, a second end of the control member having a first contact portion and a second contact portion, and an activation assembly received in the body and including a first operation unit and a second operation unit, the first and second operation units located on two respective outsides of the first and second contact portions wherein the first operation unit includes a first plate, a first support plate, a first biasing member, a first swing plate with a contact point, a first stationary plate and a second plate; and wherein the second operation unit includes a first plate, a second support plate, a second biasing member, a second swing plate with a contact point, a second stationary plate and a second plate.