Quasifixed variable resistor
AssigneeAlps Electric Co., Ltd.
InventorShoichi Henmi
Life of this patent
Estimating the term…
Abstract
A quasifixed variable resistor includes a resistor substrate with a resistor mounted thereon, a stopper plate rotatably retained about an axis on the substrate, and a knob having a slider fixed to an end of the stopper plate, the slider, sliding on the resistor. In a flat portion located at a bottom end of a cylindrical section of the stopper plate, a screwdriver engaging section having an adjusting groove is folded and is integrally formed therein. A wing piece branched by the adjusting groove is tapered in a direction toward the flat portion and a tip end of the screwdriver can be engaged with an end portion of the wing piece for adjustment.
Claims2
A quasifixed variable resistor comprising:
- a resistor substrate with a resistor mounted thereon;
- a stopper plate rotatably retained about an axis on said substrate;
- and
- a knob including a slider fixed to an end of said stopper plate, said slider sliding on said resistor wherein
- in a flat portion located at a bottom end of a cylindrical section of said stopper plate, a screwdriver engaging section having an adjusting groove is folded and is integrally formed therein,
- a wing piece branched by said adjusting groove is tapered in a direction toward the flat portion,
- a tip end of said screwdriver is enabled to be engaged with an end portion of said wing piece for adjustment,
- said stopper plate includes two rings each substantially having a shape of a circle,
- a cylindrical section is formed in one of said two rings, said cylindrical section being engaged with a slider,
- a groove to be used to adjust a resistance value with a screwdriver is formed in the other one of said two rings, and
- said two rings are folded and rotatably fixed about an axis on said resistor substrate.
Dependencies are inferred from the claim text.