1. A system, comprising:
a cylindrical input gear comprising a plurality of round gear elements that are arrayed outwardly on a common input gear element radius from a central axis;
a sprocket gear disposed about a sprocket pin and comprising a plurality of involute teeth that are disposed to mesh with the cylindrical input gear round gear elements, wherein the sprocket gear freely rotates about the sprocket pin;
an inner output disc body disposed about the cylindrical input gear and attached to one end of the sprocket pin, the inner output disc body defining an inner output disc body circular groove on a first groove radius from the central axis within a plane normal to the central axis and facing inward;
an outer output disc body disposed about the cylindrical input gear and attached to another remaining end of the sprocket pin, the outer output disc body defining an outer output disc body circular groove on a second groove radius from the central axis within a plane normal to the central axis and facing outward, the inner output disc body and the outer output disc body encompassing the sprocket gear and the cylindrical input gear;
an outer housing encompassing the cylindrical input gear, the sprocket gear, the inner output disc body and the outer output disc body, the outer housing comprising a plurality of ring gear round gear elements that are each disposed on a ring gear radius from the central axis to mesh with the sprocket gear involute teeth, the outer housing defining an outward facing inner housing circular groove on the first groove radius from the central axis within a plane normal to the central axis and aligning with the inner output disc body circular groove, and the outer housing defining an inward facing outer housing circular groove on the second groove radius from the central axis within a plane normal to the central axis and aligning with the outer output disc body circular groove;
a first plurality of ball bearings disposed between the outward facing inner housing circular groove and the inner output disc body circular groove, wherein the first plurality of ball bearings transfer an operational load of the inner output disc body conveyed through the inner output disc body circular groove to the housing via the outward facing inner housing circular groove while rolling along the outward facing inner housing circular groove and the inner output disc body circular groove during operation of the gear set; and
a second plurality of ball bearings disposed between the inward facing inner housing circular groove and the outer output disc body circular groove; wherein the second plurality of ball bearings transfer an operational load of the outer output disc body conveyed through the outer output disc body circular groove to the housing via the inward facing inner housing circular groove while rolling along the inward facing inner housing circular groove and the outer output disc body circular groove during operation of the gear set.
2. The system of claim 1, wherein the operational loads transferred to the outer housing through the first plurality of ball bearings and the second plurality of bearings comprise a total operative torque load of the inner output disc body and the outer output disc body.
3. The system of claim 2, wherein rotation of the cylindrical input gear about the central axis at a first motor shaft input gear revolution speed and a first input torque drives the sprocket gear into rotation about the sprocket pin in response to meshing of the cylindrical input gear round gear elements with the sprocket gear involute teeth;
wherein the rotation of the sprocket gear about the sprocket pin causes the sprocket gear involute teeth to engage the ring gear round gear elements and responsively drive the sprocket gear pin and the inner output disc body and the outer output disc body that are attached thereto into rotation about the central axis at an output revolution speed that is less than the input revolution speed, and at an output element torque that is greater than the input torque.
4. The system of claim 3, wherein the outer housing is an aluminum body, the system further comprising:
a plurality of generally cylindrical ring gear apertures formed on respective aperture axes that are each parallel to and spaced from the central axis on a ring gear radius, wherein inner surfaces of the ring gear apertures are hard anodized and coated or impregnated with a Teflon\xae coating; and
wherein the ring gear round gear elements are steel pins disposed within the ring gear apertures.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A folding mobile phone, comprising:
a main body, comprising at least one button panel;
a display sheathing pivoting on the main body, the display sheathing comprising a first surface near the main body, and a second surface corresponding thereto, the second surface being away from the main body, the display sheathing comprising:
a liquid crystal module, a first light-guiding plate and a second light-guiding plate corresponding thereto being disposed on two surfaces of the liquid crystal module, the first surface exposing a portion of the first light-guiding plate, the second surface exposing a portion of the second light-guiding plate;
a light source disposed at a side of the liquid crystal module; and
a light-guiding bar disposed between the light source and the liquid crystal module, swinging between the first light-guiding plate and the second light-guiding plate to guide light from the light source to either the first light-guiding plate or the second light-guiding plate; and
a pivot connecting the main body with the display sheathing, further connecting the light-guiding bar so that the light-guiding bar moves with the display sheathing and swings between the first light-guiding plate and the second light-guiding plate.
2. The folding mobile phone of claim 1, wherein when the display sheathing is opened, the light-guiding bar swings to the second light-guiding plate, and when the display sheathing is closed, the light-guiding bar swings to the first light-guiding plate.
3. The folding mobile phone of claim 1, wherein the light source comprises a light emitting diode.
4. The folding mobile phone of claim 1, wherein the light-guiding bar moves with the display sheathing through a spring-plate module.
5. The folding mobile phone of claim 4, wherein the pivot comprises a fixed sleeve and a movable pivot, the fixed sleeve being connected with the main body, the movable pivot being connected with the display sheathing, and the fixed sleeve has a protrusion part, and the spring-plate module comprises a first end, a second end and a rotation center, wherein the first end is connected with the light-guiding bar, the second end is adapted to contact with the protrusion part, and the rotation center is between the first end and the second end such that the light-guiding bar swings between the first light-guiding plate and the second light-guiding plate.
6. The folding mobile phone of claim 5, wherein the protrusion part is located at a position parallel to a line passing through a center of the movable pivot with a 30\xb0 angle from the button panel.
7. The folding mobile phone of claim 1, wherein the light-guiding bar moves with the display sheathing through a gear wheel apparatus.
8. The folding mobile phone of claim 7, wherein the pivot comprises a fixed sleeve and a movable pivot, the fixed sleeve being connected with the main body, the movable pivot being connected with the display sheathing, the fixed sleeve comprising a saw-type protrusion portion, the light-guiding bar comprising an extension portion, wherein an end of the extension portion comprises a gear wheel, adapted to contact with the saw-type protrusion portion, such that the light-guiding bar swings between the first light-guiding plate and the second light-guiding plate.
9. The folding mobile phone of claim 8, wherein a center of the saw-type protrusion portion is located at a position parallel to a line passing through a center of the movable pivot with a 30\xb0 angle from the button panel.
10. The folding mobile phone of claim 1, wherein the light-guiding bar moves with the display sheathing through a cam device.
11. The folding mobile phone of claim 10, wherein the pivot comprises a fixed sleeve and a movable pivot, the fixed sleeve being connected with the main body, the movable pivot being connected with the display sheathing, the fixed sleeve comprising a cam shape, the light-guiding bar comprising an extension portion, wherein an end of the extension portion comprises a roller, adapted to contact with the cam shape, such that the light-guiding bar swings between the first light-guiding plate and the second light-guiding plate.
12. The folding mobile phone of claim 11, wherein a longest distance from the cam shape to the center of the movable pivot is when the cam shape is located at a position parallel to a line passing through a center of the movable pivot with a 30\xb0 angle from the button panel.
13. A double-sided liquid crystal display apparatus, comprising:
a liquid crystal module, a first light-guiding plate and a second light-guiding plate corresponding thereto being disposed over two surfaces of the liquid crystal module;
a light source disposed at a side of the liquid crystal module; and
a light-guiding bar disposed between the light source and the liquid crystal module, swinging between the first light-guiding plate and the second light-guiding plate to guide light from the light source to either the first light-guiding plate or the second light-guiding plate.
14. The double-sided liquid crystal display apparatus of claim 13, wherein the light source comprises a light emitting diode.
15. The double-sided liquid crystal display apparatus of claim 13, wherein the light source comprises a cold cathode fluorescent tube.