JPS6121062U

JPS6121062U - Pick-up drive mechanism of optical information recording/reproducing device

Info

Publication number: JPS6121062U
Application number: JP8618384U
Authority: JP
Inventors: 和靖本山; 征三渡辺
Original assignee: オリンパス光学工業株式会社
Priority date: 1984-06-12
Filing date: 1984-06-12
Publication date: 1986-02-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の概略平面図、第２図は、その要部断面
図、第３図及び第４図はバックラッシュ防止機構の説明
図で、第３図は、その斜視図、第４図は、その要部組立
断面図である。第５図及び第６図は、ピックアップの上下ガタ防止機構
の斜視図及びその部分断面図である。１・・・・・・ピックアップ、２・・・・・・読取用レ
ンズ、３・・・・・・送りテーブル、５・・・・・・滑
り軸受、訃・・・・・モータ、９・・・・・・平歯車、
３０２・・・・・・テーブル駆動アーム、３０３・・・
・・・テーブル支持アーム、３１３・・・・・・上軸受
板、３２３・・・・・・下軸受板、１０・・・・・・送
りねじ、１１，１２・・・・・・平歯車、１３・・・・
・・ゴム継手、１４・・・・・・ラジアルベアリング、
１６・・・・・・スラストバネ、１７・・・・・・スラ
ストベアリング、１８・・・・・・ピボット軸受、１９
・・・・・・弾性ピン、２０・・・・・・エンコーダデ
スク、２２・・・・・・コイルバネ、２３・・・・・・
ネジ。Fig. 1 is a schematic plan view of the present invention, Fig. 2 is a sectional view of the main part thereof, Figs. 3 and 4 are explanatory diagrams of the backlash prevention mechanism, Fig. 3 is a perspective view thereof, and Fig. 4 The figure is an assembled sectional view of the main parts. 5 and 6 are a perspective view and a partial sectional view of the mechanism for preventing vertical play of the pickup. 1... Pickup, 2... Reading lens, 3... Feeding table, 5... Sliding bearing, End... Motor, 9... ...spur gear,
302... Table drive arm, 303...
...Table support arm, 313...Top bearing plate, 323...Bottom bearing plate, 10...Feed screw, 11,12...Spur gear , 13...
...Rubber joint, 14...Radial bearing,
16... Thrust spring, 17... Thrust bearing, 18... Pivot bearing, 19
...Elastic pin, 20...Encoder desk, 22...Coil spring, 23...
screw.

Claims

[Claims for Utility Model Registration] (1) A pickup that moves along a guide axis, an elastic pin provided on a part of the pickup feed table, and a feed screw arranged parallel to the movement axis of the pickup, A pickup drive mechanism for an optical information recording/reproducing device, characterized in that an elastic pin provided on one side of the pickup feed table engages with the feed screw to move the pickup along a guide shaft. (2) The pickup drive mechanism according to claim 1, wherein the pickup is fixed to a moving pickup speed table by a sliding bearing fitted to a guide shaft. (3) The pick-up feed table is provided with a table support arm that has a substantially U-shaped wedged part made up of an upper bearing plate and a lower bearing plate, the interval of which can be adjusted, and between the upper and lower bearing plates of the arm. The pickup drive mechanism according to claim 2, which is a registered utility model, characterized in that a guide shaft is inserted to prevent vertical play. {4} The pickup drive mechanism according to claim 1, wherein the feed screw is provided with means for preventing play in the axial direction using a thrust bearing and a thrust spring. (5) The pickup drive mechanism according to claim 3, wherein the feed screw is driven by a motor via a spur gear from one end, and an encoder disk is provided at the other end. (6) The pickup drive mechanism according to claim 4, wherein the spur gear is a backlash prevention gear in which two parallel gears are connected by a rubber joint.