Variable resistor of sliding type with switch activated by slider

Claim 2

A sliding-type variable resistor with switch comprising an elongated channel-type upper housing having an upper wall and sidewalls, said upper wall having a longitudinally extended slot; a baseplate of a dielectric material being mounted so as to define a closed channel in cooperation with said upper housing, said baseplate being provided longitudinally thereon with a pair of projections, a resistance element and a conductive element; connecting terminals connected to said resistance element and said conductive element, respectively; a slider being disposed inside said closed channel and slidable longitudinally along said baseplate, said slider having a pair of step portions slidably engaged with said projections provided on said baseplate, respectively, at least two contactors which slidably contact with said resistance element and said conductive element, respectively, and are connected with eAch other, spring means being slidably in contact with an inner side of said upper wall of said upper housing, and operating means extended through said slot provided to said upper wall; switch-actuating means including working member means fixed to said slider and outwardly extended in the sliding direction of said slider; switch means disposed on at least one of the longitudinal end portions of said baseplate so as to be cooperative with said working member means, said switch means including a pair of Ushaped movable contacts each having an arm fixed to said baseplate and a resilient free arm having a portion engageable with said working member means, and a pair of stationary contacts fixed to said baseplate for constituting a pair of switches in cooperation with said movable contacts, respectively, said movable contacts being moved in a direction substantially perpendicular to the sliding direction of said slider by said engagement between said portions of said resilient free arms and said working member means thereby to operate said switches.

Claim 3

A sliding-type variable resistor with switch according to claim 1, wherein said working member means comprises a pair of working members extended in the sliding direction of said slider, said movable contacts are moved inwardly by the engagement of said working member, and said stationary contacts are disposed outwards said movable contacts and spaced therefrom by the movement of said movable contacts.

Claim 4

A sliding-type variable resistor with switch according to claim 1, wherein said working member means comprises a wedge-shaped working member extended in the sliding direction of said slider, said movable contacts are moved outwardly by the engagement of said working member, and said stationary contacts are disposed inwards said movable contacts.

Claim 5

A sliding-type variable resistor with switch comprising an elongated channel-type upper housing having an upper wall and sidewalls, said upper wall having a longitudinally extended slot; a baseplate of a dielectric material being mounted so as to define a closed channel in cooperation with said upper housing, said baseplate being provided longitudinally thereon with a pair of projections, a resistance element and a conductive element; connecting terminals connected to said resistance element and said conductive element, respectively; a slider being disposed inside said closed channel and slidable longitudinally along said baseplate, said slider having a pair of step portions slidably engaged with said projections provided on said baseplate, respectively, at leas two contactors which slidably contact with said resistance element and said conductive element, respectively, and are connected with each other, spring means being slidably in contact with an inner side of said upper wall of said upper housing, and operating means extended through said slot provided to said upper wall; switch-actuating means including working member means fixed to said slider and outwardly extended in the sliding direction of said slider; switch means disposed on at least one of the longitudinal end portions of said baseplate so as to be cooperative with said working member means, said switch means including a U-shaped contact plate which is mounted on said one of the longitudinal end portions so as to be slightly movable in the sliding direction of said slider and has a pair of resilient free arms each having a portion engageable with said working member means, and further including a pair of stationary contacts fixed to said baseplate for constituting a pair of switches in cooperation with said resilient free arms, said resilient free arms being moved in a direction substantially perpendicular to the sliding direction of said slider by said engagement between said portions of said free arms and said working member means thereby to operate said switches.

Claim 6

A sliding-type variable resistor with switch comprising an elongated channel-type upper housing having an upper wall and sidewalls, said upper wall having a longitudinally extended slot; a baseplate of a dielectric material being mounted so as to define a closed channel in cooperation with said upper housing, said baseplate being provided longitudinally thereon with a pair of projections, a resistance element and a conductive element; connecting terminals connected to said resistance element and said conductive element, respectively; a slider being disposed inside said closed channel and slidable longitudinally along said baseplate, said slider having a pair of step portions slidably engaged with said projections provided on said baseplate, respectively, at leas two contactors which slidably contact with said resistance element and said conductive element, respectively, and are connected with each other, spring means being slidably in contact with an inner side of said upper wall of said upper housing, and operating means extended through said slot provided to said upper wall; switch-actuating means including working member means fixed to said slider and outwardly extended in the sliding direction of said slider; switch means disposed on at least one of the longitudinal end portions of said baseplate so as to be cooperative with said working member means, said switch means including a U-shaped contact plate which is mounted on said one of the longitudinal end portions so as to be slightly movable in the sliding direction of said slider and has a pair of resilient free arms each having a portion engageable with said working member means, and further including a pair of stationary contacts fixed to said baseplate for constituting a pair of switches in cooperation with said resilient free arms, said resilient free arms being moved in a direction substantially perpendicular to the sliding direction of said slider by said engagement between said portions of said free arms and said working member means thereby to operate said switches.

Claim 7

A sliding-type variable resistor with switch according to claim 4, wherein said working member means cOmprises a pair of working members extended in the sliding direction of said slider, said resilient free arms are moved inwardly by the engagement of said working members, and said stationary contacts are disposed outwards said free arms.

Claim 8

A sliding-type variable resistor with switch according to claim 4, wherein said working member means comprises a wedge-shaped working member extended in the sliding direction of said slider, said resilient free arms are moved outwardly by the engagement of said working member, and said stationary contacts are disposed inwards said free arms.

Claim 9

A sliding-type variable resistor with switch comprising an elongated channel-type upper housing having an upper wall and sidewalls, said upper wall having a longitudinally extended slot; a baseplate of a dielectric material being mounted so as to define a closed channel in cooperation with said upper housing, said baseplate being provided longitudinally thereon with a pair of projections, a resistance element and a conductive element; connecting terminals connected to said resistance element and said conductive element, respectively; a slider being disposed inside said closed channel and slidable longitudinally along said baseplate, said slide having a pair of step portions slidably engaged with said projections provided on said baseplate, respectively, at least two contactors which slidably contact with said resistance element and said conductive element, respectively, and are connected with each other, spring means being slidably in contact with an inner side of said upper wall of said upper housing, and operating means extended through said slot provided to said upper wall; switch-actuating means being mounted on said slider and slightly movable in the sliding direction of said slider, said switch-actuating means including working member means outwardly extended in said sliding direction; switching means disposed on at least one of the longitudinal end portions of said baseplate so as to be cooperative with said working member means, said switch means including a pair of U-shaped movable contacts each having an arm fixed to said baseplate and a resilient free arm having a portion engageable with said working member means, and a pair of stationary contacts fixed to said baseplate for constituting a pair of switches in cooperation with said movable contacts, respectively, said movable contacts being moved in a direction substantially perpendicular to the sliding direction of said slider by said engagement between said portions of said free arms and said working member means thereby to operate said switches.

Claim 10

A sliding-type variable resistor with switch comprising an elongated channel-type upper housing having an upper wall and sidewalls, said upper wall having a longitudinally extended slot; a baseplate of a dielectric material being mounted so as to define a closed channel in cooperation with said upper housing, said baseplate being provided longitudinally thereon with a pair of projections, a resistance element and a conductive element; connecting terminals connected to said resistance element and said conductive element, respectively; a slider being disposed inside said closed channel and slidable longitudinally along said baseplate, said slide having a pair of step portions slidably engaged with said projections provided on said baseplate, respectively, at least two contactors which slidably contact with said resistance element and said conductive element, respectively, and are connected with each other, spring means being slidably in contact with an inner side of said upper wall of said upper housing, and operating means extended through said slot provided to said upper wall; switch-actuating means being mounted on said slider and slightly movable in the sliding direction of said slider, said switch-actuating means including working member means outwardly extended in said sliding direction; switching means disposed on at least one of the longitudinal end portions of said baseplate so as to be cooperative with said working member means, said switch means including a pair of U-shaped movable contacts each having an arm fixed to said baseplate and a resilient free arm having a portion engageable with said working member means, and a pair of stationary contacts fixed to said baseplate for constituting a pair of switches in cooperation with said movable contacts, respectively, said movable contacts being moved in a direction substantially perpendicular to the sliding direction of said slider by said engagement between said portions of said free arms and said working member means thereby to operate said switches.

Claim 11

A sliding-type variable resistor with switch according to claim 7, wherein said working member means comprises a pair of working members extended in the sliding direction of said slider, said movable contacts are moved inwardly by the engagement of said working members and said stationary contacts are disposed outwards said movable contacts.

Claim 12

A sliding-type variable resistor with switch according to claim 7, wherein said working member means comprises a wedge-shaped working member extended in the sliding direction of said slider, said movable contacts are moved outwardly by the engagement of said working member and said stationary contacts are disposed inwards said movable contacts.