Back to results
US 8,045,440 B2Granted
Optical disk cleaning device
AssigneeElm
InventorsTakakazu Miyahara, Terumasa Miyahara
Life of this patent
Estimating the term…
Abstract
An optical disk polishing device which includes: a disk holder for rotatably holding an optical disk, the disk holder installed in a lower fixed portion; a cylindrical buff disposed in parallel with the surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner; a drive motor to rotate the buff; and an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by a spring or other member. The device makes it possible to clean a readout surface of the optical disk in a short period of time, and to be offered at a low price owing to the simple and small-sized structure thereof.
Claims41
An optical disk cleaning device comprising:
- a disk holder for rotatably holding an optical disk to be cleaned at a lower fixed portion;
- a cylindrical buff having a rotary shaft which is disposed in parallel with a surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner;
- a drive motor to rotate the buff;
- an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by an elastic member;
- and
- an end-of-cleaning notification device which detects an end of cleaning based on an increase in an electric current of the drive motor by a predetermined amount or more or based on a decrease in a rotation speed of the drive motor by a predetermined amount or more, and notifies the end of the cleaning to an operator.
3 more elements
An optical disk cleaning device comprising:
- a disk holder for rotatably holding an optical disk to be cleaned at a lower fixed portion;
- a cylindrical buff having a rotary shaft which is disposed in parallel with a surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner;
- a drive motor to rotate the buff;
- an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by an elastic member;
- and
- a motor control mechanism which detects an end of cleaning based on an increase in an electric current of the drive motor by a predetermined amount or more or based on a decrease in a rotation speed of the drive motor by a predetermined amount or more, and reduces the rotation speed of the drive motor or stops the drive motor.
3 more elements
An optical disk cleaning device comprising:
- a disk holder for rotatably holding an optical disk to be cleaned at a lower fixed portion;
- a cylindrical buff having a rotary shaft which is disposed in parallel with a surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner;
- a drive motor to rotate the buff;
- an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by an elastic member;
- and
- a motor-stopping mechanism which detects opening of the upper opening-and-closing portion based on a decrease in an electric current of the drive motor by a predetermined amount or more or based on an increase in a rotation speed of the drive motor by a predetermined amount or more, and stops a rotation of the drive motor.
3 more elements
An optical disk cleaning device comprising:
- a disk holder for rotatably holding an optical disk to be cleaned at a lower fixed portion;
- a cylindrical buff having a rotary shaft which is disposed in parallel with a surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner;
- a drive motor to rotate the buff;
- an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by an elastic member;
- and
- a cleaning liquid injection mechanism to inject or spray a cleaning liquid onto the optical disk or the buff, when the upper opening-and-closing portion is closed, the cleaning liquid injection mechanism comprising a pump provided with a pump chamber, a volume of which changes in conjunction with opening or closing of the upper opening-and-closing portion, and check valves installed at a suction side and a discharging side of the pump chamber.
3 more elements
An optical disk cleaning device comprising:
- a disk holder for rotatably holding an optical disk to be cleaned at a lower fixed portion;
- a cylindrical buff having a rotary shaft which is disposed in parallel with a surface of the optical disk and perpendicular to a rotary shaft of the disk holder in an offset manner;
- a drive motor to rotate the buff;
- an upper opening-and-closing portion normally urged to an open state to the lower fixed portion by an elastic member;
- and
- a cleaning liquid injection mechanism to inject or spray a cleaning liquid onto the optical disk or the buff, when the upper opening-and-closing portion is closed, the cleaning liquid injection mechanism comprising a pump provided with an elastic tube and check valves installed at both sides of the tube, and a mechanism for pressing the tube in conjunction with closing of the upper opening-and-closing portion.
3 more elements
Dependencies are inferred from the claim text.