Disk carrying device and optical disk recording/reproducing device
View Patent ↗In a disk carrying device including a first idle gear rotatably supported by a lower chassis and a second idle gear for contacting and separating from the first idle gear to perform a rotation operation, the second idle gear and a roller gear meshing therewith are rotatably supported by a feed plate to cause the second idle gear to contact and separate, from below, from the first idle gear rotatably supported by the lower chassis. Because of this configuration, in disk insertion, a downward force F 1 acts on the second idle gear and a pushing pressure of the feed roller to a disk D decreases. In disk ejection, an upward force F 2 acts on the second idle gear and the pushing pressure of the feed roller to the disk D increases.
1. A disk carrying device, comprising:
a feed plate that rotatably supports a feed roller;
a lower chassis that rotatably supports the feed plate;
a disk carrying motor fixed to the lower chassis to rotate the feed roller via a gear array;
a disk guide provided in an upper chassis to hold a disk between it and the feed roller; and
a spring that urges the feed roller to rotate so that the feed roller abuts the disk guide,
wherein the gear array includes:
a worm gear that transmits a torque of the disk carrying motor;
a first idle gear rotatably supported by the lower chassis to transmit the torque from the worm gear;
a second idle gear rotatably supported by the feed plate and being detachably engaged with the first idle gear; and
a roller gear fixed to a roller shaft of the feed roller to mesh with the second idle gear.
2. The disk carrying device according to claim 1 , wherein the worm gear comprises:
a worm fixed to a motor shaft of the disk carrying motor;
a worm wheel rotatably supported by the lower chassis in a vertical direction to mesh with the worm; and
a worm formed in the same shaft above the worm wheel to mesh with the first idle gear.
3. The disk carrying device according to claim 1 , wherein a roller portion of the feed roller is fixed to the roller shaft.
4. An optical disk recording/reproducing device, comprising the disk carrying device according to claim 1 .