Optical pickup feeding device and optical pickup supporting device including the same
AssigneeSanyo Electric Co., Ltd.
InventorsHidetoshi AKIMOTO, Takeshi Aoki
Life of this patent
Estimating the term…
Abstract
Multiple regulating portions protruding more than tooth portions of the rack are provided in positions, between which a feed shaft is interposed, in the vicinity of the tooth portions. Each regulating portion has an inclined surface which is opposed to a periphery of the feed shaft, and which is isolated more from the feed shaft as the inclined surface becomes farther from arm portions. Thereby, it is possible to restrain thin portions of the rack from twistedly deforming when the tooth portions come out of mesh with a groove of the feed shaft. In addition, it is possible to prevent the rack from coming off the feed shaft to a large extent.
Claims8
An optical pickup feeding device for moving an optical pickup in a radial direction of an optical disc, comprising:
- a feed shaft rotatably supported by a fixation board and provided with a spiral feed groove in a periphery of the feed shaft;
- a driving motor for rotating the feed shaft;
- and
- a driving member for driving the optical pickup by use of the driving motor and the feed shaft, wherein
- the driving member comprises:
- a main body portion to which the optical pickup is fixed;
- a tooth portion in mesh with the feed groove;
- an arm portion supporting the tooth portion and the main body portion in a way that the tooth portion and the main body portion are spaced;
- and a plurality of regulating portions provided in positions, between which the feed shaft is interposed, along the periphery of the feed shaft in a vicinity of the tooth portion.
Dependencies are inferred from the claim text.