JPS63135572U

JPS63135572U -

Info

Publication number: JPS63135572U
Application number: JP2853187U
Authority: JP
Priority date: 1987-02-27
Filing date: 1987-02-27
Publication date: 1988-09-06

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示したジヤケツト
のシヤツタスライド面を示す拡大正面図、第２図
は第１図の―線拡大断面図、第３図は従来の
磁気デイスクカートリツジを示す斜視図、第４図
はそのジヤケツトのシヤツタスライド面を示す拡
大正面図、第５図は第４図の―線拡大断面図
である。１……磁気デイスクカートリツジ、２……ジヤ
ケツト、３……デイスク、５……ヘツド挿入窓、
６……溝、７……シヤツタスライド面、７ａ……
段差の側面、７ｂ……湾曲面、９……シヤツタ、
１０……開放窓、１１……バネ。 Fig. 1 is an enlarged front view showing the shutter slide surface of a jacket showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line - - in Fig. 1, and Fig. 3 shows a conventional magnetic disk cartridge. FIG. 4 is an enlarged front view showing the shutter slide surface of the jacket, and FIG. 5 is an enlarged sectional view taken along the line -- in FIG. 4. 1... Magnetic disk cartridge, 2... Jacket, 3... Disk, 5... Head insertion window,
6... Groove, 7... Shutter slide surface, 7a...
Side surface of step, 7b...curved surface, 9... shutter,
10...open window, 11...spring.

Claims

[Scope of utility model registration request]

The head insertion window includes a head insertion window formed at a position away from the center hole, a guide groove formed along the side near the head insertion window, the head insertion window and the guide groove, and has a step for stopping the shutter. The head is inserted by engaging a jacket forming a shutter slide surface and a pawl that is fitted to the side along the guide groove so as to sandwich the jacket and protrudes inwardly from the guide groove. A U-shaped shutter that covers the window from both sides of the jacket and slides along the guide groove, a spring member that biases the shutter toward the closing side, and a spring member that is housed in the jacket and inserted through the center hole of the jacket. 1. A disk cartridge comprising a disk on which information is recorded and rotated by a drive shaft, characterized in that a groove is formed on the base of the step on the shutter slide surface of the jacket.