JPS59142908U - turntable device - Google Patents

turntable device

Info

Publication number
JPS59142908U
JPS59142908U JP3356683U JP3356683U JPS59142908U JP S59142908 U JPS59142908 U JP S59142908U JP 3356683 U JP3356683 U JP 3356683U JP 3356683 U JP3356683 U JP 3356683U JP S59142908 U JPS59142908 U JP S59142908U
Authority
JP
Japan
Prior art keywords
turntable
disc
detection means
information recording
recording carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3356683U
Other languages
Japanese (ja)
Other versions
JPH0233287Y2 (en
Inventor
健二 佐藤
Original Assignee
株式会社ケンウッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ケンウッド filed Critical 株式会社ケンウッド
Priority to JP3356683U priority Critical patent/JPS59142908U/en
Publication of JPS59142908U publication Critical patent/JPS59142908U/en
Application granted granted Critical
Publication of JPH0233287Y2 publication Critical patent/JPH0233287Y2/ja
Granted legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の構成を示す断面図。 第２図は本考案の一実施例によって減圧度低下を表示し
た場合の一例を示すブロック図。 １・・・ターンテーブル、２・・・メインシャフト、４
ａおよび４Ｂ・・・シール部材、７・・・容量タンク、
８・・・発光ダイオード、９・・・ホトトランジスタ、
１０・・・ホトインタラプタ、１２・・・再トリガ単安
定マルチバイブレータ、１ａおよび２ａ・・・通気路、
７Ａ・・・突起体、１８・・・レコード盤。FIG. 1 is a sectional view showing the configuration of an embodiment of the present invention. FIG. 2 is a block diagram showing an example of displaying a decrease in the degree of decompression according to an embodiment of the present invention. 1... Turntable, 2... Main shaft, 4
a and 4B...Sealing member, 7...Capacity tank,
8... Light emitting diode, 9... Phototransistor,
DESCRIPTION OF SYMBOLS 10... Photointerrupter, 12... Retrigger monostable multivibrator, 1a and 2a... Ventilation path,
7A...Protrusion, 18...Record.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）ターンテーブルの表面と前記ターンテーブルの表
面上に載置された円盤状情報記録担体との間をシールす
るため前記ターンテーブルに装着された弾性体からなる
シール部材を備えて、前記ターンテーブルと前記ターン
テーブル表面上に載置された前記円盤状情報記録担体と
前シール部材とで囲まれた空間内を減圧するようにして
なるターンテーブル装置′において、前記空間内の気圧
を検出する気圧検出手段を設けたことを特徴とするター
ンテーブル装置。(1) A sealing member made of an elastic body attached to the turntable for sealing between the surface of the turntable and the disc-shaped information recording carrier placed on the surface of the turntable, In a turntable device' configured to reduce pressure in a space surrounded by a table, the disc-shaped information recording carrier placed on the surface of the turntable, and a front seal member, the air pressure in the space is detected. A turntable device characterized by being provided with atmospheric pressure detection means. （２）気圧検出手段はターンテーブルの裏面に装着され
、内部が前記ターンテーブルとターンテーブル表面上に
載置された円盤状情報記録担体とシール部材とで囲まれ
た空間内と連通しかつ前記空間内の圧力にともなって伸
縮する伸縮体と、該伸縮体に固着された突起体と、該突
起体をシャッタとして協働するホトインタラプタと、該
ホトインタラプタの出力を検出する検出手段とｈ化なる
ことを特徴とする実用新案登録請求の範囲第１項記載の
ターンテーブル装置。(2) The atmospheric pressure detection means is mounted on the back side of the turntable, and communicates with a space surrounded by the turntable, a disc-shaped information recording carrier placed on the turntable surface, and a sealing member; A telescoping body that expands and contracts with pressure in a space, a protrusion fixed to the telescoping body, a photointerrupter that cooperates with the protrusion as a shutter, and a detection means that detects the output of the photointerrupter. A turntable device according to claim 1, which is a utility model.
JP3356683U 1983-03-10 1983-03-10 turntable device Granted JPS59142908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3356683U JPS59142908U (en) 1983-03-10 1983-03-10 turntable device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3356683U JPS59142908U (en) 1983-03-10 1983-03-10 turntable device

Publications (2)

Publication Number Publication Date
JPS59142908U true JPS59142908U (en) 1984-09-25
JPH0233287Y2 JPH0233287Y2 (en) 1990-09-07

Family

ID=30164349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3356683U Granted JPS59142908U (en) 1983-03-10 1983-03-10 turntable device

Country Status (1)

Country Link
JP (1) JPS59142908U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756394U (en) * 1980-09-19 1982-04-02
JPS5761694U (en) * 1980-09-24 1982-04-12

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193859A (en) * 1978-08-31 1980-03-18 King Arthur S Selective multiple electrode waste water treating system
US4202870A (en) * 1979-04-23 1980-05-13 Union Carbide Corporation Process for producing alumina

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756394U (en) * 1980-09-19 1982-04-02
JPS5761694U (en) * 1980-09-24 1982-04-12

Also Published As

Publication number Publication date
JPH0233287Y2 (en) 1990-09-07

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