JPS60180380U - magnetic disk device - Google Patents

Abstract

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

Description

[Brief explanation of drawings]

FIG. 1 is a plan view showing an example of a magnetic disk cassette that can be used in the present invention, and FIG. 2 is an exploded perspective view of the same cassette.
Fig. 3 is a partially sectional side view of the same cassette, Fig. 4 is a side view showing an embodiment of the present invention, Fig. 5 is a plan view showing the upper cover in the above embodiment, and Fig. 6 is the above embodiment. Figure 7 is a plan view of the above embodiment; Figure 8 is a side view showing different operating modes of the above embodiment according to Figure 4; Figure 9 is the same as Figure 9. FIG. 10 is a plan view showing a different operating mode of the embodiment according to FIG. 7, FIG. 10 is a longitudinal sectional view showing the magnetic head moving cam body and its surrounding area in the above embodiment, and FIG. 11 is a view of the same cam body. A plan view, FIG. 12 is a developed view of the cam edge of the same cam body, FIG. 13 is a plan view showing the annular gear in the above embodiment, and FIG. 14 shows a portion of the rotation conversion means in the above embodiment. FIG. 15 is an exploded perspective view of the control mechanism used in the rotation converting means, FIG. 16 is a plan view of the magnetic head moving mechanism in the above embodiment, and FIG. 17 is a partially sectional plan view. An exploded perspective view of the magnetic head support mechanism in the above embodiment, FIG. 18 is a line A-- in FIG. 17.
19 is a plan view of the upper magnetic head support mechanism portion; FIG. 20 is a side view showing an enlarged part of the cam body; and FIG. 21 is a longitudinal sectional view of the cam body. . 1...Cassette, 3...Disc, 8
...Opening, 9...Shutter plate, 40
...Holder, 81...Opening/closing member, 15
0... Carriage as a support member, 154.
...magnetic head, 186...pad. 74 ゐ (5 fig. tz415 and 7. -, \゛\ 4) Heart I7 fig. - ° Rikiko 5 il

Claims (1)

[Scope of utility model registration request] A cassette containing a disk is inserted into a holder, and in the process of moving this holder from the cassette insertion/removal position to the recording/playback position, the shutter plate that covers the opening provided in the cassette is moved, and the first magnetic head and , the disk exposed through the opening is held between a pad or a second magnetic head attached to a support member that moves to a recording/reproducing position in conjunction with the movement of the holder, and information signals are recorded and reproduced. In the magnetic disk drive, an opening/closing member for moving the shirt flap plate is attached to the holder while being biased in the cassette ejection direction, and one end of the opening/closing member is attached to the support when the gusset is not inserted. A magnetic disk drive configured to face the member at a position where it can come into contact with the support member, and to be separated from the support member by moving the shank plate when a cassette is inserted.