JPS5839717U

JPS5839717U - Record disc suction device

Info

Publication number: JPS5839717U
Application number: JP13134281U
Authority: JP
Inventors: 義彦岩田; 本間　義孝
Original assignee: 株式会社オ−デイオテクニカ
Priority date: 1981-09-03
Filing date: 1981-09-03
Publication date: 1983-03-15
Also published as: JPH0124727Y2

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図はこの考案によるレコード吸着盤を一部切欠いて
示した平面図、第２図はその■−■線に沿った断面図、
第３図はアウターシールおよびインナーシールを一部切
欠いて示した正面図、第４図はアウターシールの要部拡
大断面図、第５図はインナーシール部を切離して一部切
欠いて示した正面図、第６図はその要部拡大断面図、第
７図は逆止弁の正面図、第８図はその■−■線に沿った
断面図、第９図は開閉弁の断面図である。図中、１はレコード吸着盤、２・・・円板体、３は空気
室、４はセンタプレート、５はセンタフレーム、６は第
１の環状溝、７はスペーサリング、８は第２の環状溝、
９はアウターシール、１５はインナーシール、１１は保
護シート、１２は貫通孔、１３は逆止弁、１４は開閉弁
、１６はセンタスピンドル、１７は中心孔、２２．２９
はフランジ、２１．２８は基部、２３はレコード盤、３
０は縦溝、３２は透孔である。３５３６第９図８．１２３３５第５図Figure 1 is a partly cutaway plan view of the record suction cup according to this invention, Figure 2 is a sectional view taken along the line ■-■,
Fig. 3 is a partially cutaway front view of the outer seal and inner seal, Fig. 4 is an enlarged sectional view of the main part of the outer seal, and Fig. 5 is a partially cutaway front view of the inner seal. , FIG. 6 is an enlarged cross-sectional view of the main part thereof, FIG. 7 is a front view of the check valve, FIG. 8 is a cross-sectional view taken along the line ■-■, and FIG. 9 is a cross-sectional view of the on-off valve. In the figure, 1 is a record suction cup, 2 is a disc body, 3 is an air chamber, 4 is a center plate, 5 is a center frame, 6 is a first annular groove, 7 is a spacer ring, and 8 is a second annular groove,
9 is an outer seal, 15 is an inner seal, 11 is a protective sheet, 12 is a through hole, 13 is a check valve, 14 is an on-off valve, 16 is a center spindle, 17 is a center hole, 22.29
is the flange, 21.28 is the base, 23 is the record, 3
0 is a vertical groove, and 32 is a through hole. 3536 Figure 9 8.12 335 Figure 5

Claims

[Claims for Utility Model Registration] A record suction device that is detachably interposed between a turntable of a record playback device and a record to be played, and rotates together with the turntable while holding the record by suction. The turntable includes a disc body having a center hole through which the center spindle of the turntable is inserted, and the disc body includes an air chamber formed airtightly inside the disc body, and an outer peripheral end extending from the air chamber. A communication hole opened toward the wall; and a communication hole installed in the communication hole to selectively communicate the air chamber with a negative pressure source such as a vacuum pump, and open the air chamber to the atmosphere. an annular outer seal and an inner seal that are in close contact with the outer peripheral edge and the same peripheral edge of the record and form an airtight space therebetween; an air passage communicating between the space portion and the air chamber; and a protective sheet made of a material softer than the record disc and integrally formed between the outer seal and the inner seal. The record disc is placed concentrically on the disk body using the center spindle as a guide, and the negative pressure source connects the air chamber and airtight air through the valve device. When reducing the pressure inside a space, the negative pressure -
A record disc suction device characterized in that the record disc is suctioned and fixed onto the disc body through the protection sheet.