JPS61174050U

JPS61174050U -

Info

Publication number: JPS61174050U
Application number: JP5792585U
Authority: JP
Priority date: 1985-04-16
Filing date: 1985-04-16
Publication date: 1986-10-29

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例でデイスクをター
ンテーブル上に載置した状態を示す断面図、第２
図はこの考案の他の実施例でデイスクをターンテ
ーブル上に載置した状態を示す断面図、第３図は
従来例で大径デイスクをターンテーブル上で回転
させる状態を示す断面図、第４図は一般的なデイ
スクプレーヤでデイスクをターンテーブル上に載
置した状態を示す断面図である。１……大径デイスク、１ａ……グルーブガード
、１ｂ……情報記録部、１ｃ……中心部、３……
小径デイスク、３ａ……グルーブガード、３ｂ…
…情報記録部、３ｃ……中心部、４……ターンテ
ーブル、４ａ……外側支持部、４ｂ……中心支持
部、４ｃ……中間支持部、５……小径デイスク、
５ａ……グルーブガード、５ｂ……情報記録部、
５ｃ……中心部、６……ターンテーブル、６ａ…
…外側支持部、６ｂ……中心支持部。 Fig. 1 is a cross-sectional view showing one embodiment of this invention in which a disk is placed on a turntable;
The figure is a cross-sectional view showing another embodiment of this invention in which a disk is placed on a turntable, FIG. 3 is a cross-sectional view showing a conventional example in which a large-diameter disk is rotated on a turntable, and FIG. The figure is a sectional view showing a state in which a disc is placed on a turntable in a general disc player. 1...Large diameter disk, 1a...Groove guard, 1b...Information recording section, 1c...Center, 3...
Small diameter disc, 3a...Groove guard, 3b...
... Information recording section, 3c ... Center part, 4 ... Turntable, 4a ... Outer support section, 4b ... Center support section, 4c ... Intermediate support section, 5 ... Small diameter disk,
5a...groove guard, 5b...information recording section,
5c...Center, 6...Turntable, 6a...
...outer support part, 6b...center support part.

Claims

[Scope of utility model registration request]

A disk with a large diameter that has a groove guard with a thickness a thicker than the information recording section on the outer periphery, or a disk with a small diameter that has a groove guard with a thickness b that is thicker than the thickness a of the groove guard. In a disc player equipped with a turntable to be placed, a center support part is provided protruding from the center of the upper surface of the turntable, an outer support part is provided protruding from the periphery of the upper surface of the turntable, and An intermediate support portion is provided protrudingly between the center support portion and the outer support portion on the upper surface and is lower than the protrusion height of the outer support portion by (thickness b - thickness a)/2. disk player.