JPH0193644U

JPH0193644U -

Info

Publication number: JPH0193644U
Application number: JP19026787U
Authority: JP
Priority date: 1987-12-15
Filing date: 1987-12-15
Publication date: 1989-06-20

Description

[Brief explanation of the drawing]

第１図は本考案に係る両面演奏デイスクプレー
ヤの要部であるデイスククランプ機構及びデイス
ク芯出し装置の一部断面を含む正面図、第２図及
び第３図は第１図に示したデイスククランプ機構
の一部の斜視図、第４図は第１図に示した該デイ
スククランプ機構の一部の側面図、第５図ａない
し第８図は第１図に示したデイスククランプ機構
及びデイスク芯出し装置の動作を説明するための
図、第９図は従来の両面演奏デイスクプレーヤの
要部であるデイスククランプ機構及びデイスク芯
出し装置の一部断面を含む正面図である。主要部分の符号の説明、２１……ターンテーブ
ル、２３……情報記録デイスク、２４，２５……
円形基板、２７……第１芯出し部材、２９……コ
イルスプリング、３１……支持部材、３２，３４
……板ばね、３３……回転部材、３５……押圧部
材、３６……第２芯出し部材。 Fig. 1 is a front view including a partial cross section of a disc clamp mechanism and a disc centering device, which are the main parts of a double-sided disc player according to the present invention, and Figs. 2 and 3 are a disc clamp shown in Fig. 1. FIG. 4 is a side view of a portion of the disk clamp mechanism shown in FIG. 1, and FIGS. 5a to 8 are a perspective view of a portion of the disk clamp mechanism and disk core shown in FIG. FIG. 9, which is a diagram for explaining the operation of the feeding device, is a partially sectional front view of a disk clamping mechanism and a disk centering device, which are the main parts of a conventional double-sided disc player. Explanation of symbols of main parts, 21... Turntable, 23... Information recording disk, 24, 25...
Circular substrate, 27... first centering member, 29... coil spring, 31... support member, 32, 34
...Plate spring, 33... Rotating member, 35... Pressing member, 36... Second centering member.

Claims

[Scope of utility model registration request]

A pair of circular substrates, each having a signal recording layer and a center hole, are attached to each other so that the signal recording layer is on the inside. An information recording disk is centered with respect to a turntable by a disk centering device and the disk is clamped. A double-sided performance disc player that is played by being pressed by a mechanism, wherein the disc clamp mechanism includes a supporting member movably provided in a plane substantially perpendicular to the disc supporting surface of the turntable; A driving means for moving the member, a rotating member rotatably provided on the supporting member, and a pressing member attached to the rotating member via an elastic member to press the information recording disk against the disk supporting surface. Becomes,
The disk centering device is provided so as to be freely protrusive and retractable with respect to the disk supporting surface and along the rotation center axis of the turntable, and is capable of fitting into a center hole of one of the circular substrates that abuts the disk supporting surface. a second centering member, a biasing means for biasing the first centering member in a projecting direction, and a second centering member that is attached to the rotating member and that can be fitted into a center hole of the other circular substrate with respect to the one centering member. and the first centering member is recessed from the disk supporting surface when the second centering member is inserted into the center hole, and the elastic member is a spring member that performs a toggle action. A double-sided disc player.