JPS58122270U - disk cartridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an example of a magnetic disk cartridge to which the disk cartridge according to the invention is applied;
Figure 2 is a longitudinal sectional view of the disk cartridge, Figure 3A
, B are sectional views before and after fusion, respectively showing the fused parts of the upper and lower cases, and Figures 4A and B are sectional views before and after fusion, respectively, showing the upper and lower hubs for supporting and holding the magnetic disk. , FIG. 5 is a sectional view of the upper and lower cases showing the essential parts of this invention, FIG. 6 is a perspective view showing the engagement structure between the shutter member and the slider, FIG. 7 is an explanatory view of the lower end of the slider, and FIG. Figure 8 is a sectional view showing the reference pole insertion hole, Figures 9A and B are sectional views before and after fusion showing the positioning concave and convex parts, respectively, and Figure 10 is a cross-sectional view of the movable element for preventing accidental erasure. An enlarged plan view of the lower case showing the setting part, Figure 11 is a front sectional view showing the setting part of the mover, Figure 12 is a front view showing the operation window of the mover, and Figure 13 is the shutter part. FIG. 14 is a cross-sectional view showing a conventional molding die for a disk cartridge, and FIG. 15 is an explanatory diagram of a case obtained using a conventional molding die. -1...Case body, 2...Upper case, 3...
・Lower case, 21...Magnetic head insertion window, 24.25
...Shutter member, 2i0a, 210b... Joint surface trace. , -Figure 13Figure 14

Claims (1)

[Scope of utility model registration request] A synthetic resin case body consisting of an upper and lower case body, magnetic head insertion windows formed on the upper and lower walls of the case body, and magnetic head insertion windows provided on the upper and lower inner walls of the case body. and a shutter member for closing the window so as to be openable and closable, and in which traces of the bonding surfaces of the upper and lower case molding molds are present within the inner wall surface of each of the insertion windows.