JPS63181139U

JPS63181139U -

Info

Publication number: JPS63181139U
Application number: JP6894687U
Authority: JP
Priority date: 1987-05-11
Filing date: 1987-05-11
Publication date: 1988-11-22

Description

[Brief explanation of drawings]

第１図は本考案のデイスククランプ機構の一実
施例のクランプ前の状態を示す図、第２図Ａは第
１図のデイスククランプ機構のデイスククランプ
直前の状態を示す図、第２図Ｂは第１図のデイス
ククランプ機構のデイスククランプ時の状態を示
す図、第３図は第２図Ｂ中デイスククランプ部分
を拡大して示す図、第４図は従来のデイスククラ
ンプ機構のクランプ前の状態を示す図、第５図は
第４図のデイスククランプ機構のデイスククラン
プ時の状態を示す図、第６図はクランパがクラン
プアームに対して斜めとなりうることを示す図、
第７図は第６図の状態でクランプ動作をしたとき
に起こりうるミスクランプを示す図である。３……スピンドル、４……ターンテーブル、６
……クランプアーム、７……孔、１１……コンパ
クトデイスク、２０……クランパ、２１……中心
貫通孔、２１ａ……下側孔部、２１ｂ……上側孔
部、２２……クランパ案内棒、２３……支持板、
２４，２５……軸線。 FIG. 1 is a diagram showing the state before clamping of an embodiment of the disk clamping mechanism of the present invention, FIG. 2A is a diagram showing the state of the disk clamping mechanism of FIG. 1 just before the disk is clamped, and FIG. Figure 1 shows the state of the disk clamp mechanism when the disk is clamped, Figure 3 is an enlarged view of the disk clamp part in Figure 2B, and Figure 4 shows the state of the conventional disk clamp mechanism before clamping. FIG. 5 is a diagram showing the disk clamping mechanism of FIG. 4 when the disk is clamped. FIG. 6 is a diagram showing that the clamper can be oblique to the clamp arm.
FIG. 7 is a diagram showing mis-clamping that may occur when a clamping operation is performed in the state shown in FIG. 6. 3...Spindle, 4...Turntable, 6
... Clamp arm, 7 ... Hole, 11 ... Compact disk, 20 ... Clamper, 21 ... Center through hole, 21a ... Lower hole, 21b ... Upper hole, 22 ... Clamper guide rod, 23...Support plate,
24, 25... Axis line.

Claims

[Scope of Claim for Utility Model Registration] (1) A turntable fixed to a spindle, a clamp arm rotatably supported at one end, and a loosely fitted distal end of the clamp arm so as to face the turntable. The disk comprises a supported clamper, the clamp arm rotates, the clamper approaches the turntable, the clamper engages the spindle, and the disk is magnetically attracted and inserted into the turntable. A mechanism for clamping the peripheral portion of the center hole of the clamper, wherein a guide rod is provided at the tip of the spindle in a spaced manner so as to align the axis with the axis of the spindle and to not interfere with insertion of the disk, and to clamp the clamper. The structure has a center through hole passing through the center, and the center through hole is fitted to the guide rod, and the clamper is guided through the center through hole by the guide rod so as to be parallel to the turntable. A disk clamp mechanism configured to move while maintaining its position. (2) A request for registration of a utility model characterized in that the central through-hole of the clamper has a diameter slightly larger than that of the guide rod at its upper portion, and has a gap with respect to the guide rod when the disc is clamped. The disk clamp mechanism according to item 1.