JPS6384780U

JPS6384780U -

Info

Publication number: JPS6384780U
Application number: JP17882786U
Authority: JP
Priority date: 1986-11-20
Filing date: 1986-11-20
Publication date: 1988-06-03

Description

[Brief explanation of the drawing]

第１図は本考案のデイスクカセツトの平面図、
第２図は分解斜視図、第３図は要部の拡大図、第
４図は要部の断面図、第５図は第４図の―矢
視図、第６図は第２実施例の断面図、第７図、第
８図、第９図はガイド突起の変形例の断面図、第
１０図は従来例の底面図、第１１図はシヤツタス
プリングの取付状態を示す説明図、第１２図はシ
ヤツタの断面図である。１１……デイスクカセツト、１２……デイスク
、１３……ケース、１３ａ……開口部、１４……
シヤツタ、１４ｃ……端面板、１４ｄ，１４ｅ…
…対向板、１５……シヤツタスプリング、１８…
…ガイド突起、１８ａ……スプリング係止部、１
９……ガイド溝。 Figure 1 is a plan view of the disk cassette of the present invention.
Fig. 2 is an exploded perspective view, Fig. 3 is an enlarged view of the main parts, Fig. 4 is a sectional view of the main parts, Fig. 5 is a view taken in the - arrow direction of Fig. 4, and Fig. 6 is a view of the second embodiment. 7, 8, and 9 are sectional views of modified examples of the guide projection, FIG. 10 is a bottom view of the conventional example, and FIG. 11 is an explanatory view showing the installed state of the shutter spring. FIG. 12 is a sectional view of the shutter. 11...Disk cassette, 12...Disk, 13...Case, 13a...Opening, 14...
Shutter, 14c... End plate, 14d, 14e...
...Opposing plate, 15... Shutter spring, 18...
...Guide protrusion, 18a...Spring locking part, 1
9...Guide groove.

Claims

[Scope of Claim for Utility Model Registration] A disk having a signal recording surface, a case that rotatably houses the disk, and a shutter that opens and closes openings such as head holes provided on the upper and lower surfaces of the case. , a shutter spring whose free end side is locked to one end of the shutter, and the shutter includes an end plate and a pair of opposing plates connected to both ends of the end plate. In the disk cassette, the disk cassette has a U-shaped cross section and is provided with a guide protrusion on its inner peripheral surface, the guide protrusion being fitted into a guide groove provided in the case, When the shutter is formed of a polymeric material, a guide protrusion is formed integrally with the inner surface of the opposing plate of the shutter, and a guide groove is formed in one side of the case, while a guide protrusion is formed on one side of the case. A disk cassette, characterized in that it is provided with a spring locking portion that locks the free end side of the shutter spring.