JPS58190866U

JPS58190866U - Center spindle lifting mechanism of recording disc playback device

Info

Publication number: JPS58190866U
Application number: JP8650682U
Authority: JP
Inventors: 長田　俊久; 原　喜隆
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1982-06-10
Filing date: 1982-06-10
Publication date: 1983-12-19

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図は従来のターンテーブルの昇降装置を示す断面図
、第２図は従来の昇降駆動機構を示す斜視図、第３図は
従来の記録円盤再生装置のセンタ・スピンドル昇降機構
を示す分解斜視図、第４図及び第５図は第３図に示す機
構を用いたターンテーブルの昇降装置を示す断面図であ
って第４図は上昇状態を示す断面図１、第５図は下降伏
態を示す断面図、第６図は本考案に係る記録円盤再生装
置のセンタ・スピンドル昇降機構を示す分解斜視図、第
７図及び第８図は第６図に示す機構を組立てた状態のタ
ーンテーブルの昇降装置を示す断面図であって第７図は
上昇状態を示す断面図、第８図は下降伏態を示す断面図
である。１４・・・ハウジング、１４ａ・・・段部上面、１５・
・・シャーシ、１６・・・ターンテーブル、１６ａ川凹
部、１７・・・ターンテーブル軸、１８・・・凹孔、１
９・・・ばね、２０・・・センタ・スピンドル、２０ａ
・・・フランジ部、２１・・・センタ・スピンドル軸、
３０・・・ローディング機構、３１・・・昇降カム板、
３２．３３・・・カム溝、４０・・・レバー、４０ａ・
・・枢軸（支点部）、４０ｂ・・・被作用点部、４０Ｃ
・・・作用点部、４１・・・支持部、４１ａ・・・透孔
、４２・・・昇降ポスト、４２ａ・・・フランジ部、４
２ｂ・・・湾曲部。 −′　第１図ノ　　　　　　）　　　　　　。 Δ １・第２図す °）７４４３′　　　　　　　　　　　　筬〜第３図Figure 1 is a sectional view showing a conventional turntable lifting device, Figure 2 is a perspective view showing a conventional lifting drive mechanism, and Figure 3 is an exploded perspective view showing a center spindle lifting mechanism of a conventional recording disc playback device. 4 and 5 are sectional views showing a turntable lifting device using the mechanism shown in FIG. 6 is an exploded perspective view showing the center spindle elevating mechanism of the recording disk reproducing apparatus according to the present invention, and FIGS. 7 and 8 show a turntable with the mechanism shown in FIG. 6 assembled. FIG. 7 is a cross-sectional view showing the lifting device in a raised state, and FIG. 8 is a cross-sectional view showing a lowering state. 14...Housing, 14a...Step top surface, 15.
... Chassis, 16... Turntable, 16a river recess, 17... Turntable shaft, 18... Recessed hole, 1
9... Spring, 20... Center spindle, 20a
... flange part, 21 ... center spindle shaft,
30... Loading mechanism, 31... Lifting cam plate,
32.33...Cam groove, 40...Lever, 40a.
... Pivot (fulcrum part), 40b... Affected point part, 40C
...Action point part, 41...Support part, 41a...Through hole, 42...Elevating post, 42a...Flange part, 4
2b...Curved part. -' Figure 1). Δ 1・Fig. 2°）74 43' Reed ~ Fig. 3

Claims

[Scope of utility model registration request]

A turntable having a disk mounting surface, a recess formed in the approximate center of this mounting surface, and a turntable shaft integrally provided at the center of the lower surface of the recess, and a lift for raising and lowering the turntable. means, a center spindle movably installed in the recess of the turntable, a housing installed on the lower surface of the turntable and supporting the turntable shaft in a vertically movable manner, and one end extending through the turntable. an elevating post that protrudes into the recess and is vertically movably attached to the turntable so that the other end can come into contact with the housing, and has an acting point part and an actuated point part centered on the fulcrum part, The fulcrum part is supported by a support part formed in the recessed part, the acting point part is moved along with the vertical movement of the lifting post, the applied point part is engaged with a part of the center spindle, and the fulcrum part is moved. and a lever that can be rotated around the center, and the lever has a fulcrum that is centered
The spindle is formed at opposing positions on both sides of the spindle, and with this fulcrum part at the center, an acting point part and an actuated point part are formed on both sides thereof, and the acting point parts are connected to each other to form a substantially U-shape. The support part is a protruding part that is integrally formed with the turntable in a recessed part of the turntable and has a pair of opposing through holes, and both ends of the fulcrum part of the lever are inserted into the respective through holes of the support part. A center spindle lifting/lowering mechanism for a recording disk reproducing device, characterized in that the center spindle is fitted together.