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US 2003/0117256 A1Published application
Motor-driven slide type variable resistor and method of manufacturing the resistor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSeiki Miura, Yukio Hashimoto, Kenji Kataoka
Life of this patent
Estimating the term…
Abstract
In a motor-driven slide type variable resistor, the tensioning of a toothed loop belt joined to an operating lever is adjusted with a pin adjusted to change the distance between a toothed pulley and a follower pulley in order to adjust a traveling speed of the operating lever. The variable resistor has little variations of the traveling speed of the operating lever and is accurate
Claims8
A variable resistor comprising:
- a frame having a linear slit provided therein;
- a slide type variable resistor unit including an operating lever extending through said linear slit of said frame;
- a motor mounted to said frame a first direction parallel to said linear slit from said linear slit;
- a first pulley mounted to a rotary shaft of said motor;
- a pulley mounter mounted to said frame in a second direction opposite to said first direction from said linear slit, said pulley mounter rotatable about a first axis in relation to said frame;
- a second pulley mounted to said pulley mounter, said second pulley being rotatable about a second axis which is not aligned with said first axis;
- and
- a loop belt mounted between said first and second pulleys, said belt being joined to said operating lever.
5 more elements
A variable resistor comprising:
- a frame having a linear slit and an oblong slot provided therein in parallel to each other;
- a slide type variable resistor unit including an operating lever extending through said linear slit of said frame;
- a motor mounted to said frame in a first direction parallel to said linear slit from said linear slit;
- a first pulley mounted to a rotary shaft of said motor;
- a pulley mounter mounted through said oblong slot to said frame in a second direction opposite to said first direction from said linear slit, said pulley mounter being movable along said oblong slot;
- a second pulley mounted rotatably to said pulley mounter;
- and
- a loop belt mounted between said first and second pulley, said belt being joined to said operating lever.
5 more elements
A method of manufacturing a variable resistor, comprising the steps of:
- preparing a variable resistor which includes:
- a frame having a linear slit provided therein;
- a slide type variable resistor unit including an operating lever extending through the linear slit of the frame;
- a motor mounted to the frame in a first dirextion parallel to the linear slit from the linear slit;
- a first pulley mounted to a rotary shaft of the motor;
- a pulley mounter mounted to the frame in a second direction opposite to the first direction from the linear slit, the pulley mounter being rotatable about a first axis in relation to the frame;
- a second pulley mounted to the pulley mounter, the second pulley being rotatable about a second axis which is not aligned with the first axis;
- and
- a loop belt mounted between the first and second pulleys, the belt being joined to the operating lever;
- adjusting a tensioning of the belt through turning the pulley mounter;
- and
- tightening the pulley mounter.
9 more elements
A method of manufacturing a variable resistor, comprising the steps of:
- preparing a variable resistor including:
- a frame having a linear slit and an oblong slot provided therein in parallel to each other;
- a slide type variable resistor unit including an operating lever extending through the linear slit of the frame;
- a motor mounted to the frame in a first direction parallel to the linear slit from the linear slit;
- a first pulley mounted to a rotary shaft of the motor;
- a pulley mounter mounted through the oblong slot to the frame in a second direction opposite to the first direction from the linear slit, the pulley mounter being movable along the oblong slot;
- a second pulley mounted rotatably to the pulley mounter;
- and
- a loop belt mounted between the first and second pulleys, the belt being joined to the operating lever;
- adjusting a tensioning of the belt through moving the pulley mounter along the oblong slot;
- and
- tightening the pulley mounter.
9 more elements
Dependencies are inferred from the claim text.