JPH01162152U

JPH01162152U -

Info

Publication number: JPH01162152U
Application number: JP5726188U
Authority: JP
Priority date: 1988-04-30
Filing date: 1988-04-30
Publication date: 1989-11-10

Description

[Brief explanation of the drawing]

第１図ないし第５図はこの考案の実施例を示す
もので、第１図はセンターホールの径の大きい第
２のデイスクを装着した状態を示す要部の断面側
面図、第２図は第１図の要部を拡大した断面側面
図、第３図はデイスクアダプタにセンターホール
の径の大きい第２のデイスクを載置した状態を示
す一部分を断面した斜視図、第４図はデイスクア
ダプタの斜視図、第５図はセンターホールの径の
小さい第１のデイスクを装着した状態を示す要部
の断面側面図である。第６図ないし第９図は従来
例を示すもので、第６図はセンターホールの径の
小さい第１のデイスクの断面図、第７図はセンタ
ーホールの径の大きい第２のデイスクの断面図、
第８図は第１のデイスクを装着した状態を示す要
部断面側面図、第９図は第２のデイスクを装着し
た状態を示す要部断面側面図である。主要部分の符号の説明、１：映像付きコンパク
トデイスク（第１のデイスク）、２：デジタル音
声付きビデオデイスク（第２のデイスク）、３：
光ピツクアツプ、４：スピンドルモータ、５：タ
ーンテーブル、１１：デイスクアダプタ、１１ａ
：センターホール部、１３：クランパ、１３ａ：
第１の押圧部、１３ｂ：第２の押圧部、１１ｂ：
嵌合部、１１ｃ：デイスクガイド部、１１ｄ：フ
ランジ部。 Figures 1 to 5 show an embodiment of this invention. Figure 1 is a cross-sectional side view of the main part showing a state in which a second disk with a larger center hole diameter is attached, and Figure 2 is a cross-sectional side view of the main part. 1 is an enlarged cross-sectional side view of the main part, FIG. 3 is a partial cross-sectional perspective view showing a state in which a second disk with a larger center hole diameter is mounted on the disk adapter, and FIG. 4 is a partially sectional side view of the disk adapter. The perspective view and FIG. 5 are cross-sectional side views of essential parts showing a state in which a first disk with a small diameter center hole is attached. Figures 6 to 9 show conventional examples, where Figure 6 is a sectional view of a first disk with a small center hole diameter, and Figure 7 is a sectional view of a second disk with a large center hole diameter. ,
FIG. 8 is a cross-sectional side view of the main part showing the state in which the first disk is mounted, and FIG. 9 is a cross-sectional side view of the main part showing the state in which the second disk is mounted. Explanation of the symbols of the main parts: 1: Compact disc with video (first disc), 2: Video disc with digital audio (second disc), 3:
Optical pickup, 4: Spindle motor, 5: Turntable, 11: Disk adapter, 11a
: Center hole part, 13: Clamper, 13a:
First pressing part, 13b: Second pressing part, 11b:
Fitting portion, 11c: disk guide portion, 11d: flange portion.

Claims

[Claims for Utility Model Registration] 1. A center hole with a diameter that can be fitted in the same way as the first disk into a disk guide provided on a turntable for mounting the first disk with a small center hole diameter. A fitting part formed continuously on the lower side of the center hole part for fitting and mounting on the turntable, and a center hole of a second disk having a larger diameter center hole is fitted into the center hole. A disk guide portion formed to be slightly buried inward, a plurality of elastic lock claw portions formed on the outer periphery of this disk guide portion, and a disk guide portion configured to place a second disk thereon. A flange portion that is formed so as to protrude continuously and horizontally from the lower side, and whose outer circumferential diameter is formed to be located inside the innermost signal recording position of the second disk; . 2. A turntable for mounting a first disk with a small diameter center hole, a disk guide for fitting the center hole of the first disk provided at the center of the turntable, and a turntable for mounting the first disk on the turntable. In a disk clamp device for a disk player, the clamp mechanism includes a clamp mechanism for pressing and fixing a placed disk toward the turntable. and a second pressing portion formed outside the first pressing portion to press the second disk having a larger diameter center hole, and the first disk is placed on the turntable. When the disk adapter according to claim 1 is mounted on the turntable, the first pressing portion presses and fixes the first disk near the center hole, and the second disk is placed on the disk adapter. The disk clamp device is characterized in that the second pressing portion presses and fixes the second disk near the center hole, and the first pressing portion is configured to be in a non-contact state with the disk adapter.