| 摘要 |
A supporting mechanism for moving an optical pickup device radially with respect to an optical recording medium includes a first guide shaft, a second guide shaft mounted parallel to the first guide shaft, first and second pairs of guide rollers provided on a lateral side of an optical block of the optical pickup device mounting an object lens radiating a light beam to the optical recording medium for being abutted on the first guide shaft for permitting the optical block to be moved only in a direction around the first guide shaft and in a direction along the axis of the first guide shaft, a guide roller stably mounted on an opposite lateral surface of the optical block and abutting on the second guide shaft for preventing rotation of the optical block around the first guide shaft towards a side of the optical block provided with the object lens, and a guide roller provided on the opposite lateral surface of the optical block via an elastic member and for being thrust against the second guide shaft for resiliently biasing the optical block towards the first guide shaft.
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