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US 7,454,765 B2Granted
Optical disc drive
AssigneeSamsung Electronics Co., Ltd.
InventorsChung-ung Kim, Pil-Je Cho, Kyu-hyeong Lee, Young-woo Huh
Life of this patent
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Abstract
An optical disc drive including a clamping mechanism, which faces a turntable, supports a surface of a disc, and is rotated. The clamping mechanism includes a clamper, which has access to the disc by a magnetic force when a spindle motor has access to the disc so that the disc is not deviated from a mounting portion when clamping is not completely performed, and a return member, which allows the clamper to be spaced apart from the disc as the spindle motor is spaced apart from the disc.
Claims16
An optical disc drive comprising:
- a tray comprising a mounting portion on which a disc is mounted;
- a spindle motor comprising a turntable that supports a first surface of the disc and which is installed to have access to or be spaced apart from the disc;
- and
- a clamping mechanism, which faces the turntable, to support a second surface of the disc, and is rotated,
- wherein the clamping mechanism comprises:
- a clamper, which has access to the disc by a magnetic force when the spindle motor has access to the disc;
- and
- a return member, providing a force less than the magnetic force to the clamper in a direction in which the clamper is separated from the turntable so that the clamper comes closer to the disc when the spindle motor is ascending with the disc, the clamper is separated from the disc when the spindle motor is descending, and thereby preventing the disc from deviating from the mounting portion of the tray when clamping and unclamping operation is performed,
- wherein the return member is an elastic member, which elastically biases the clamper in a direction in which the clamper is spaced apart from the disc.
6 more elements
An optical disc drive comprising:
- a tray comprising a mounting portion on which a disc is mounted;
- a spindle motor comprising a turntable that supports a first surface of the disc and which is installed to have access to or be spaced apart from the disc;
- and
- a clamping mechanism, which faces the turntable, to support a second surface of the disc, and is rotated,
- wherein the clamping mechanism comprises:
- a clamper, which has access to the disc by a magnetic force when the spindle motor has access to the disc;
- and
- a return member, providing a force less than the magnetic force to the clamper in a direction in which the clamper is separated from the turntable so that the clamper comes closer to the disc when the spindle motor is ascending with the disc, the clamper is separated from the disc when the spindle motor is descending, and thereby preventing the disc from deviating from the mounting portion of the tray when clamping and unclamping operation is performed,
- wherein the clamping mechanism further comprises a support member that supports the clamper to move, and the return member is an elastic member, which elastically biases the clamper with respect to the support member in a direction in which the clamper is spaced apart from the disc.
6 more elements
An optical disc drive comprising:
- first and second frames, which face each other;
- a tray, which slides on the first frame and on which a disc is mounted;
- a spindle motor comprising a turntable that supports a first surface of the disc and which is installed in the first frame to have access to or be spaced apart from the disc;
- and
- a clamping mechanism, which is installed in the second frame to be rotated, faces the turntable, supports a second surface of the disc, and is rotated,
- wherein the clamping mechanism comprises:
- a clamper, which has access to the disc by a magnetic force when the spindle motor has access to the disc so that the disc is not deviated from the tray when clamping is not completely performed, and
- a return member, providing a force less than the magnetic force to the clamper in a direction in which the clamper is separated from the turntable so that the clamper comes closer to the disc when the spindle motor is ascending with the disc, the clamper is separated from the disc when the spindle motor is descending, and thereby preventing the disc from deviating from the mounting portion of the tray when clamping and unclamping operation is performed,
- wherein the clamping mechanism comprises a support member, which is installed in the second frame to be rotated and supports the clamper to move, and the return member is an elastic member, which elastically biases the clamper with respect to the support member in a direction in which the clamper is spaced apart from the disc.
6 more elements
An optical disc drive comprising:
- a mounting portion on which a disc is mounted;
- a clamping mechanism to support the disc, comprising:
- a clamper to press the disc against the mounting portion in a loaded state of the disc, and
- a return member, a deformation of the return member varying according to the loaded or an unloaded state of the disc;
- and
- a magnetically inductable element disposed in the clamper to be induced by a variable magnetic force to thereby move the clamper toward the disc in the loaded state.
3 more elements
Dependencies are inferred from the claim text.