Abstract: An electrical switch has a fixed contact and a moving contact arranged for movement between an ON position in contact with the fixed contact and an OFF position out of contact with the fixed contact, and an operating member for operating the moving contact. A spring co-acts between the operating member and the moving contact and resiliently biases the moving contact towards each of the ON and OFF positions through an over-centre action of the spring. An end piece is fitted at each end of the spring, which has a formation, for example, a groove, for pure rotary engagement with a part, for example, a pin, movable with the operating member or moving contact for imparting resilient action upon the operating member or the moving contact.

Abstract: An electrical switch has two fixed contacts and a moving contact, a spring urging the moving contact towards contacting the fixed contacts, and an actuating mechanism for moving the moving contact away from the fixed contacts against urging by the spring and, alternatively, allowing the moving contact to contact the fixed contacts under the action of the spring. The actuating mechanism has an engaging member for engaging and retaining the moving contact and includes a spring acting on the engaging member for separating the moving contact from the fixed contacts through an instant spring-release action. One of the engaging member and the contacts is configured such that the moving contact will be engaged and moved by the engaging member out of contact with one of the fixed contacts earlier than with the other fixed contact.

Abstract: An electrical switch has two fixed contacts and a moving contact, a spring urging the moving contact towards contacting the fixed contacts, and an actuating mechanism for moving the moving contact away from the fixed contacts against urging by the spring and, alternatively, allowing the moving contact to contact the fixed contacts under the action of the spring. The actuating mechanism has an engaging member for engaging and retaining the moving contact and includes a spring acting on the engaging member for separating the moving contact from the fixed contacts through an instant spring-release action. One of the engaging member and the contacts is configured such that the moving contact will be engaged and moved by the engaging member out of contact with one of the fixed contacts earlier than with the other fixed contact.

Abstract: An electrical switch has a fixed contact and a moving contact arranged for movement between an ON position in contact with the fixed contact and an OFF position out of contact with the fixed contact, and an operating member for operating the moving contact. A spring co-acts between the operating member and the moving contact and resiliently biases the moving contact towards each of the ON and OFF positions through an over-centre action of the spring. An end piece is fitted at each end of the spring, which has a formations for example, a groove, for pure rotary engagement with a part, for example a pin, movable with the operating member or moving contact for imparting resilient action upon the operating member or the moving contact.

Abstract: An electrical switch includes two fixed contacts and a moving contact supported for movement between an ON position in contact with the fixed contacts and an OFF position out of contact with the fixed contacts, and an operating mechanism for moving the moving contact. The operating mechanism has an operating member, a contact mover supported for moving the moving contact upon movement by the operating member, and a spring-loaded device located between the operating member and the contact mover for movement by the operating member past a transitional condition of maximum strain to flick the contact mover between the operating positions of the contact mover.

Abstract: A trigger assembly for an electric power tool includes a switch for electrical connection to the power tool for controlling operation of the power tool, and a trigger coupled with the switch for operating the switch. The trigger is pivotable about an upper end between an outer position in which the switch is open and an inner position in which the switch is closed. Also included is a locking member located adjacent the lower end of the trigger for locking the trigger in the outer position. The locking member is movable from a locking position, locking the trigger in the outer position, to an unlocking position releasing the trigger.

Abstract: An electrical switch includes an operating member carrying moving contacts which face, in opposite directions, two rows of fixed contacts. The operating member moves the moving contacts into and out of contact with the fixed contacts. Each moving contact may have opposite ends for contacting two adjacent fixed contacts on a corresponding side of the operating member. Springs provided between the moving contacts and corresponding side of the operating member bias the contact ends into contact with the corresponding rows of fixed contacts.

Abstract: A trigger mechanism for a power tool, comprises a chassis, a trigger mounted movably to the chassis, and an electrical switch mounted to the chassis and activated by movement of the trigger between ON and OFF positions to close and open an electrical circuit. A locking mechanism attached to the chassis is user-activated to unlock the trigger in the OFF position and trigger-activated to release the trigger in the ON position. The mechanism includes a single, spring-loaded locking pin arranged to lock the trigger in both the ON and the OFF positions.

Abstract: An electrical switch comprising a casing, two rows of fixed contacts located within the casing and on opposite sides thereof, and a moving contact for making and breaking electrical connection between the fixed contacts of each row. An operating member is provided between the two rows of fixed contacts. The operating member is supported by the casing for relative movement along a path co-extensive with the two rows of fixed contacts to move the moving contacts into contact with and out of contact from the fixed contacts of the corresponding rows. The moving contacts are carried by the operating member on opposite sides thereof for movement thereby, facing the two rows of fixed contacts in opposite directions.

Abstract: An electrical switch comprising a casing, a fixed contact and a moving contact, and an actuator supported for movement to a first position thereby moving the moving contact into contact with the fixed contact. The actuator is movable to a second position for permitting the moving contact to move out of contact from the fixed contact. Resilient means biases the moving contact out of contact from the fixed contact. The switch includes a remover having a part provided adjacent the fixed contact and movable by the actuator moving to the second position for removing the moving contact from the fixed contact in case the moving contact stays in contact with the fixed contact.