JPS6445312U

JPS6445312U -

Info

Publication number: JPS6445312U
Application number: JP14076987U
Authority: JP
Priority date: 1987-09-14
Filing date: 1987-09-14
Publication date: 1989-03-20

Description

[Brief explanation of the drawing]

図面はこの考案の光ピツクアツプのチルト機構
の一実施例にかかり、第１図は平面図、第２図は
第１図の―矢視図、第３図は拡大平面図、第
４図は拡大正面図、第５図および第６図はストツ
パ機構の他の実施例の斜視図および動作説明図、
第７図はこの考案機構を備えた光デイスク再生装
置の概略平面図である。２６……ベース、３４……光ピツクアツプ、３
５……ヘツドベース、３６……サブベース、４７
……連結部、５０……ねじ軸、５１……ナツトプ
レート、５２……チルトシヤーシ、５３……係合
穴。 The drawings show one embodiment of the tilt mechanism of the optical pickup of this invention, and Fig. 1 is a plan view, Fig. 2 is a view taken along the - arrow of Fig. 1, Fig. 3 is an enlarged plan view, and Fig. 4 is an enlarged view. The front view, FIGS. 5 and 6 are perspective views and operation explanatory views of other embodiments of the stopper mechanism,
FIG. 7 is a schematic plan view of an optical disc reproducing apparatus equipped with this invented mechanism. 26...Base, 34...Light pickup, 3
5... Head bass, 36... Sub bass, 47
... Connecting portion, 50 ... Screw shaft, 51 ... Nut plate, 52 ... Tilt chassis, 53 ... Engagement hole.

Claims

[Claims for Utility Model Registration] (1) A head base that faces the optical disk and is movable in the radial direction of the optical disk has a sub-base that is rotatable around an axis that is parallel to the optical disk and perpendicular to the radial direction of the optical disk. An optical pick-up whose optical axis faces the optical disk is attached to the sub-base, and is screwed into a screw shaft rotatably supported by the head base and reciprocates with the rotation of the screw shaft, rotating the sub-base to generate light. A tilting mechanism for an optical pickup, characterized in that a nut plate whose axis can be made perpendicular to the optical disk is connected to the sub-base. (2) Attach a worm wheel to the screw shaft,
A tilting mechanism for an optical pickup according to claim 1, which is rotationally driven via a worm. (3) A request for registration of a utility model characterized in that a stopper is attached to the sub-base, which faces the worm wheel with the worm wheel in between and comes into contact with the side surface of the worm wheel to restrict the rotation of the worm wheel and the rotation of the sub-base. The tilting mechanism of the optical pickup according to item 2. (4) A cam plate having a slit formed thereon that protrudes in the direction of rotation of the sub-base and is inclined in the direction of the rotation axis is provided on the sub-base, and the cam plate is engaged with the slit of the cam plate so that the slit is formed by the rotation of the sub-base. Claim 2 of the Utility Model Registration Claim, characterized in that a limit switch rod is attached to the head base, which is capable of detecting the rotation end of the sub-base and stopping the rotation of the worm by applying force in the direction of the groove. Tilt mechanism of optical pick-up.