Abstract: A common conductor assembly is employed in a contact switch and includes a mounting plate, a pivotally movable member and a tension spring. The mounting plate has an elongated flat portion with first and second vertical edges, and first and second end plate portions extending integrally and transversely from a respective one of the first and second vertical edges in a same direction. The first end plate portion has an outward face formed with an engaging groove that is perpendicular to the vertical edges of the elongated flat portion. The second end plate portion has a spring mounting neck formed thereat. A conducting leg plate portion extends downwardly and integrally from the second vertical edge of the elongated flat portion.

Abstract: A computer key includes two pairs of pivotally connected linking arms disposed between a base plate and a push button. The push button has a hingeably groove defining portion that defines a hinging axis transverse to said longitudinal direction, and a second slidably retaining guideway disposed in an underside thereof. The groove defining portion includes front and rear bearing support members spaced apart from each other along the hinging axis. The front and rear bearing support members have front and rear outboard walls in the hinging axis and define a distance which is larger than that between two hooking ends of a pair of the linking arms. The front and rear outboard walls have front and rear recesses respectively to form front and rear bearing surfaces respectively transverse to the front and rear outboard walls and facing upwardly toward the underside of the push button.

Abstract: A mechanical-type automatic circuit-breaking appliance switch assembly includes a switch housing, a switch unit, an elongate switch actuator and a biasing member. The switch housing is formed with a slide channel and is formed with an opening that is aligned with the slide channel. The switch unit is disposed in the switch housing adjacent to the slide channel. The switch unit has contact terminals that extend out of the switch housing, and a switch contact that faces the slide channel and that is capable of being pressed to operate the switch unit from a circuit-breaking state to a circuit-making state. The switch actuator is received in the slide channel and has first and second portions.

Abstract: A switch having a displaying function of the present invention includes a housing, a switching device installed in the housing for performing a switching operation and a displaying device installed in the housing and connecting with the switching device for displaying an ON/OFF status of the switch. The displaying device further includes an indicating element providing the switch status, a resilient element connecting with the indicating element in order that the indicating element provides the switch status in response to the switching operation, and a cushion device connecting with the resilient element for cushioning a pressure imposed thereon during the switching operation in order to lengthen a life of the displaying device.

Abstract: A common conductor unit for a contact switch includes a conductor body and a movable contact arm. The conductor body includes a U-shaped mounting unit that has upright first and second arm mounting portions and an elongated horizontal connecting portion which interconnects lower end edges of the arm mounting portions. Each of the arm mounting portions has one side which is opposite to the other one of the arm mounting portions and which is formed with a respective horizontal retaining groove. The contact arm is formed as an elongated plate and has a first end portion and a second end portion which is provided with a spring extension unit that extends toward the first end portion. One of the mounting unit and the contact arm is formed with a longitudinal opening to permit extension of the other one of the mounting unit and the contact arm when the contact arm is moved upwardly relative to the conductor body.

Abstract: A switch assembly of a coin collector includes a switch housing provided with first and second electrical contacts therein, a movable lever mounted in the housing and movable between an open position in which the lever contacts the first contact, and a closed position in which the lever contacts the second contact, and a ring secured within an opening in the housing. A sleeve extends through and is press-fitted within the ring in such a manner that the sleeve cannot rotate in the ring. The sleeve has an end wall with a central hole which is formed therethrough and which has a circular section and a radial extension extending radially and outwardly from the periphery of the circular section. A rotating unit includes a rotating shaft journalled in the sleeve, a radially extending push plate formed integrally with the inner end portion of the shaft, and a radially extending push needle fixed on the outer end portion of the shaft.

Abstract: A computer key includes a membrane circuit, an upper base member, an upright elastomeric biasing member, generally rectangular first and second linking frames, and a pushbutton. Each of the first and second linking frames includes a transverse axle, a pair of longitudinal linking arms extending from two ends of the axle, a pair of transverse projections disposed respectively at intermediate portions of the linking arms, and a pair of recesses respectively adjacent to the projections. Each of the recesses is formed with an upwardly facing bearing surface. The projections and the recesses are positioned and dimensioned such that in order to join the frames pivotally, one of the linking frames can be press fitted on the other so as to shorten the assembly time during mass production of the computer key.

Abstract: A computer keyboard includes a printed circuit board, a rubber plate which is located over the printed circuit board, and a positioning device that positions the printed circuit board and the rubber plate in the keyboard. The positioning device includes an electrically insulating upper positioning plate located over the rubber plate, and a lower positioning plate located under the printed circuit plate. The lower positioning plate includes a plurality of socket units which project upwardly therefrom, and through the holes of the printed circuit board and the holes of the rubber plate. The upper positioning plate includes a plurality of generally L-shaped plug units which project downwardly therefrom, and through the holes of the rubber plate and the holes of the printed circuit board. Each of the L-shaped plug units has a vertical section formed integrally with a plate body of the upper positioning plate, and a horizontal section formed integrally with a lower end of the vertical section.

Abstract: A conducting assembly of a micro switch includes an insulating member which is made up of two molded pieces and a conducting unit which is enclosed partially by the molded pieces. The conducting unit includes a leg portion which is provided with a longitudinal reinforcing member that is formed along its length. The reinforcing member is partially enclosed by the insulating member.

Abstract: A common conducting unit for a contact switch includes a mounting plate that has an elongated flat portion with two parallel end edges, and first and second end plate portions extend integrally and perpendicularly from a respective one of the end edges in the same direction. The first end plate portion has an engaging groove formed therein and extends parallel to the end edges of the flat portion. A spring mounting portion extends integrally and perpendicularly from an end edge of the second end plate portion. A through-opening extends from a position adjacent to the end edge of the first end plate portion to a position adjacent to the end edge of the second end plate portion.

Abstract: A tilt switch includes a switch casing which confines a chamber therein. First, second and third conductive terminals are provided on sides of the chamber. A movable conductor moves inside the chamber. The switch casing is turnable between a first switch position, wherein gravity acts on the movable conductor so as to place the movable conductor between the first and second conductive terminals to make electrical connection between the first and second conductive terminals, and to break electrical connection between the first and third terminals, and a second switch position, wherein gravity acts on the movable conductor so as to move the movable conductor between the first and third conductive terminals to make an electrical connection and to break electrical connection between the first and second conductive terminals. The movable conductor may include three contacting ball members movable in two communicating chambers.