JPS60124092A - Head protecting sheet of flexible magnetic disk device - Google Patents

Abstract

PURPOSE:To prevent the breakage of a head due to the vibrations caused while the head is carried by providing a stopper to a head protecting sheet at the area where a door hits and therefore avoiding the door closure and also securing a gap between a pair of upper and lower heads. CONSTITUTION:A stopper 50 is provided to a head protecting sheet 28, and this sheet 28 is loaded to a prescribed position between heads 12U and 12D. Thus the stopper 50 on the sheet 28 touches to the lower surface of a knob 20a which operates the oscillation of a bridge 20. As a result, it is impossible to give oscillation to the bridge 20 in the direction (c') in which a door 22 is closed. Then a gap delta is always secured between heads 12U and 12D to avoid the breakage of these heads despite the vibration power applied while they are being transported.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a flexible magnetic disk device (hereinafter referred to as II
', D, abbreviated as D) head protection sheets, especially replaceable flexible magnetic recording media (hereinafter abbreviated as D).

This invention relates to a head protection sheet that is interposed between the heads to protect the heads when transporting F, D, and D using media (abbreviated as "medium" for short).

[Prior art]

FIG. 1 is a perspective view showing the external appearance of F, D, and D. In the figure, 10 is a frame, 12U, 12D are a pair of upper and lower magnetic heads, 14U, 14D are carrier horns that support the magnetic heads 12U, 112D facing each other, and 16 is the design panel on the front of the frame, 18 is the fixing screw, 20 is the upper caliper 14U
22 is a door that supports the Pritsuno 20 so as to open and close the media mounting opening 24 formed on the design panel surface.
It is installed on the front side. 26 is a latch that locks the door 22.

FIG. 2 is a perspective view showing the appearance of a conventional head protection sheet 28, and in FIG. 1, 30 is a fixing hole.

Figure 3.4 is a longitudinal sectional view taken along the 5-meter line in Figure 1;
The upper carriage 14tT is fixed to the lower carriage 14D with a screw 34 via a leaf spring 32. For this reason,
The upper carriage 14U is moved by the leaf spring 32 in the direction of arrow E'.
Normally, a force is applied in the A direction by the elastic restoring force of the spring. The latch 26 is the rotation axis 3
6 is attached to the frame 10 and 1 is normally pressed in the direction of the arrow by a pressing swivel spring 38.
The back side of 0, that is, the side where the door 22 is not installed, is the leaf spring 4.
0 to the frame 10 with screws 42.

Therefore, the bridge 20 is rotated by the leaf spring 40 in the direction of the arrow ', but normally it is pushed up in the direction by the elastic restoring force of the leaf spring. A cup 44 is attached to the bridge 20 via a spring 46. 48
is a spindle, which is supported by the frame 10 facing the cup 44.

When transporting F, D=D configured as described above, as shown in FIG. After attaching the door 22 to the predetermined position between I and 12D, move the door 22 in the direction of the arrow
4 is closed, and the engaging portion 22a at the tip of the door is engaged with the latch 26 to hold it in the closed state shown in FIG. At this time, a gap δI is generated between the upper carriage 14U and the bridge 20, and the upper head 12U swings in the direction of arrow E' with the leaf spring 32 as a fulcrum. There is a risk that the upper and lower heads 12U and 12D will collide with the head protection sheet 28 and be damaged.

[Summary of the invention]

This invention was made with the aim of improving this drawback, and by providing a stopper arm in the part of the head protection sheet that touches the door, the door can be prevented from closing when the head protection sheet is installed in a predetermined position. , proposes a head protection sheet for a flexible magnetic disk drive in which a gap δ is formed between a pair of upper and lower heads to prevent the heads from being damaged by vibration force during transportation.

[Embodiments of the invention]

FIG. 5 is a perspective view showing the external appearance of the head protection sheet 28 of the present invention, and in FIG. This head protection sheet 28
When the head is moved in the two directions of the arrows as shown in FIG. 6 and installed in a predetermined position between the heads 12U and 12D, the stop horns 4-59 on the protective sheet 28 swing the bridge 2o as shown in FIG. It comes into contact with the lower surface of the handle 20a to be operated. Therefore, the bridge 20 cannot be swung in the direction C' to close the door 22, and the pair of upper and lower heads 12U, 12
A gap δ is always formed between D.

In addition, in the above embodiment, the strut horns 4? formed on the protective sheet 28? Although the shape of -5Q is square, it goes without saying that this shape may be any shape such as a triangle, a semicircle, or a circle.

〔Effect of the invention〕

As explained above, this invention has the advantage that since a gap is always formed and maintained between the pair of upper and lower heads, there is no risk of damage to the pair of upper and lower heads even if vibrational force is applied during transportation.

[Brief explanation of drawings]

Figure 1 is an external perspective view of a flexible magnetic disk device.
FIG. 2 is an external perspective view of a conventional head protection sheet, FIGS. 3 and 4 are longitudinal sectional views taken along line A-A in FIG. 1, and FIG. 5 is an external perspective view of a head protection sheet according to the present invention. , 6 and 7 show the first state in which the head protection sheet is applied.
It is a longitudinal cross-sectional view taken along the line A-A in the figure. In the figure, 10 is a frame, 12U, 12D are heads, 14U, 14D are carriages, 16 is a design panel, 1
8 is a fixing screw, 20 is a bridge, 22 is a door, 24 is a media loading port, 26 is a latch, 28 is a head protection sheet,
30 is a fixing hole, 32 is a leaf spring, 34 is a screw, 36 is a rotating shaft, 38 is a pressing coil spring, 40 is a leaf spring, 42 is a screw, 44 is a cup, 46 is a spring, 48 is a spindle, 50
is a stopper. Note that the same reference numerals in each figure indicate the same or corresponding parts. Condolence Figure 1 Figure 2 Procedural Amendment (Voluntary) 1. Indication of the case: Japanese Patent Application No. 58-232429 2, title of invention: Head protection sheath for flexible magnetic disk device h3;
Person making the amendment 5: Detailed description of the invention in the specification to be amended. 6. Contents of correction IJY”:

Claims (1)

[Claims] (1) A pair of upper and lower middle spears that protect the head, a swingable prism that supports the upper carriage of the middle spear, and a door provided on the prism to open and close a loading slot for a flexible magnetic recording medium; A head protection sheet that is inserted between the heads of the pair of carriages from the loading slot to protect the heads during transportation of a flexible magnetic disk drive having a rack that locks the door in a closed state. A head protection sheet for a flexible magnetic disk device, characterized in that a stopper 9 is provided to prevent swinging in a door closing direction.