JPS5849334U

JPS5849334U - Laser beam shutter mechanism in video disc player

Info

Publication number: JPS5849334U
Application number: JP14540581U
Authority: JP
Inventors: 明郎山川
Original assignee: ソニー株式会社
Priority date: 1981-09-30
Filing date: 1981-09-30
Publication date: 1983-04-02

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図は従来例を示す要部概略斜視図、第２図及び第３
図は同じく作動原理を説明する概略平面図、第４図乃至
第８図は本考案の一実施例を示し、第４図はシャッター
開放作動時の要部正面図、第５図は同じく側面図、第６
図はシャッター閉作動時の要部正面図、第７図は同じく
側面図、第８図は回転板と連結棒を分離した一部斜視図
である。１・・・レーザーチューブ、２・・・光学系スレッド、
３・・・シャッター、４・・・軸受部、５・・・支軸、
６・・・回動板、７・・・シャッター板、訃・・受動部
、９・・・バネ、１０・・・回転板、１１・・：メカシ
ャーシ、１２・・・アタッチメント、１３・・・移動片
、１４・・・連結紐、１５・・・軸、１６・・・係止突
起、１６Ａ・・・係止部、１７Ａ。１７Ｂ、１７Ｃ・・・回転範囲規制突起、１８・・・連
結　　　−棒、１９・・・平面部、２０・・・軸穴。Figure 1 is a schematic perspective view of main parts showing a conventional example, Figures 2 and 3
The figure is a schematic plan view explaining the principle of operation, Figures 4 to 8 show an embodiment of the present invention, Figure 4 is a front view of the main part when the shutter is opened, and Figure 5 is a side view. , 6th
The figure is a front view of the main part when the shutter is closed, FIG. 7 is a side view, and FIG. 8 is a partial perspective view of the rotating plate and the connecting rod separated. 1...Laser tube, 2...Optical system thread,
3...Shutter, 4...Bearing part, 5...Spindle,
6... Rotating plate, 7... Shutter plate, tail... Passive part, 9... Spring, 10... Rotating plate, 11...: Mechanical chassis, 12... Attachment, 13... - Moving piece, 14... Connecting string, 15... Shaft, 16... Locking protrusion, 16A... Locking part, 17A. 17B, 17C...Rotation range regulating protrusion, 18...Connection rod, 19...Plane part, 20...Shaft hole.

Claims

[Scope of utility model registration request]

In an optical video disc player, an optical system including a shutter member is provided so as to be movable back and forth, and the shutter member has a middle part rotatably supported, has a shutter plate at one end, and has a passive part at the other end. A shutter operating section that is operated in conjunction with the opening and closing of the player lid is disposed to face the passive section, and the shutter operating section is linked at both ends between a pair of rotary plates so that they cannot be moved together. A laser beam shutter mechanism for a video disc player, characterized in that it is constructed of two parallel connecting rods.