JPS6362978U

JPS6362978U -

Info

Publication number: JPS6362978U
Application number: JP15645286U
Authority: JP
Priority date: 1986-10-13
Filing date: 1986-10-13
Publication date: 1988-04-26

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案の実施例を示したも
のであつて、第１図はデイスクカートリツジの断
面図、第２図はターンテーブル上へのチヤツキン
グ状態を示した断面図、第３図及び第４図Ａ，Ｂ
，Ｃは変形例を示した断面図及び底面図である。
第５図は従来例の断面図である。なお、図面に用いた符号において、２…中心円
板、２ａ…上面、３…中心孔、４…偏心孔、７…
磁気シート、１０…上ハーフ、１０ａ…内面、１
１…下ハーフ、１２…カートリツジ、１３…ター
ンテーブル挿入孔、１５…ターンテーブル、１６
…中心ピン、３２…小径リング、３３…位置決め
用リブ、３６…耐摩耗性シート、３６ａ…下面、
である。 1 to 4 show an embodiment of this invention, in which FIG. 1 is a sectional view of the disk cartridge, FIG. 2 is a sectional view showing the state of chucking onto a turntable, and FIG. Figure 3 and Figure 4 A, B
, C are a sectional view and a bottom view showing a modified example.
FIG. 5 is a sectional view of a conventional example. In addition, in the symbols used in the drawings, 2...center disk, 2a...upper surface, 3...center hole, 4...eccentric hole, 7...
Magnetic sheet, 10...upper half, 10a...inner surface, 1
1... Lower half, 12... Cartridge, 13... Turntable insertion hole, 15... Turntable, 16
... Center pin, 32 ... Small diameter ring, 33 ... Positioning rib, 36 ... Wear-resistant sheet, 36a ... Bottom surface,
It is.

Claims

[Claims for Utility Model Registration] A sheet-like recording medium is fixed to the outer periphery of a central disk having a central hole and an eccentric hole, and the central disk and sheet-like recording medium are rotatable in a cartridge consisting of upper and lower halves. In a disk cartridge in which a center disk is loosely fitted into a turntable insertion hole provided in a lower half of the disk cartridge, a small diameter ring is attached to the outer periphery of the center hole on the upper surface of the center disk. and the small diameter ring is fitted inside a small diameter positioning rib integrally molded on the inner surface of the upper half to position the center disk in the turntable insertion hole, Inserting an abradable sheet inside the positioning rib, inserting this sheet between the inner surface of the upper half and the small diameter ring of the center disk, and inserting it into the center hole of the center disk from below. A disc cartridge characterized in that the center pin of the turntable is brought into contact with the upper half through the sheet.