| 摘要 |
An improved rocker-type switch has a toggle member pivotably mounted on a central pivot member in a frame of a top housing part joined to a bottom housing part holding switch contacts in a modular block subassembly. A pair of movable contact ar ms is actuated by spring-biased actuator members held in the central pivot member. The modular block subassembly has an insulative top block member, a top switch contact plate with switch contacts on upright tabs inserted through slots in the top block member, an insulativ e bottom block member sandwiching the top switch contact plate, and a bottom switch contact plate having switch contacts on upright tabs inserted through slots in the bottom and top block members, forming a pair of opposing switch contact positions for the movable contact arms. The switch contact plates have clip portions for inserting the tabs of respective switc h contact terminal plates therein. For different switch configurations, e.g., single-pole, doub le- pole, 3-way, or 4-way operation, the switch contact plates are changed, but the same block subassembly and other parts can be used, thereby minimizing change of the surrounding parts, limiting insulative molding costs, eliminating tolerance stack-up, and facilitating assembly through automation. |
