JPS6166272A - Disk cartridge - Google Patents

Abstract

PURPOSE:To improve the dust-proof effect with a disk cartridge by giving displacement to a transmission member forming a cover part with insertion of a pin into a pin hole in a loading mode and shifting a dust-proof slide plate to secure the coincidence between a desired hole and its corresponding hole. CONSTITUTION:When a disk cartridge case 2 is loaded, a transmission member 16 forming a cover part is displaced with oscillation around a shaft 17 by a pin which is put into a pin hole 3 covered with the member 16. Then a dust- proof slide plate 6 has a linear shift by means of a gear 18 and a rack 15. Thus the coincidence is secured between an air discharge hole 5 of the case 2 and a hole 4 for head and their corresponding holes 5' and 4' of a slide plate 6 respectively. In such a way, the dust-proof effect of a disk cartridge is improved in an unloading mode.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a disk cartridge for magnetic disks and the like.

[Conventional technology]

As shown in Fig. 4, the magnetic disk cartridge has a magnetic disk 1 for excavating the floor from the surrounding atmosphere containing dust, etc.
It has a dust-proof structure so that it is housed inside the case 2. Further, the side surface of the case 2 is provided with a pin insertion hole 3, a head insertion hole 4, and an air discharge hole 5 for loading the VC magnetic disk of the disk drive mechanism of the deck body.

Furthermore, as shown in FIG. 5, holes 4 and 5 corresponding to the head insertion hole 4 and air exhaust hole 5 are provided inside the case 2. Slide plate 6 for 7iI7IIi is arranged
A zero-shaped engaging portion 7 is provided at one end of this dustproof slide plate 6, and a pin 10 at one end of an L-shaped rotating member 9 is arranged so as to be able to rotate around a pin 8. and the engaging portion 7 are configured to engage with each other. A spring 11 is wound around the rotating member 9, and the rotating member 9 is always biased clockwise as indicated by arrow A by the spring 11. At this time, the dustproof slide plate 6 that is engaged with the pin 10 is slid upward, and in this state, the head insertion hole 4 and hole 4', and the air discharge hole 5 and hole 50 do not match. .

In the above configuration, when the disk case 2 is loaded into the disk drive mechanism to which the head 12 and the pin 13 are fixed, the pin 13 is inserted into the pin insertion hole of the case 2.
The rotary member 9 is pushed by the tip of the pin 13 and rotated counterclockwise as shown by arrow B, so that the dustproof slide plate 6 is slid downward by this rotational force. Then, at a position where the head insertion hole 4 and the hole 4' and the air discharge hole 5 and the hole 5 are aligned, the head 12 is inserted into the case 2 through the hole 4°4 and clamps the upper and lower surfaces of the disk l. Loading ends. At the same time, a protrusion on the turntable provided in the disk drive mechanism engages with the recess 141C in which the disk lk is provided, making it possible to drive the disk.

When driving the disk, the disk l is rotated counterclockwise, for example K 3
It is rotated at 600 rpm, and the air pressure generated at this time discharges the waste inside the case 2 to the outside through the air discharge hole 5.

[Problem that the invention seeks to solve]

By the way, conventionally, when unloading the disk case, both the head insertion hole 4 and the air discharge hole 5 are stored by the shield slide plate 6, but the pin insertion hole 3 is always left open. Therefore, there was a drawback that the dustproofing effect was reduced.

[Means for resolving issues]

The present invention has been made in view of the above, and an object of the present invention is to provide a disk cartridge in which the dustproof effect is improved by covering the pin insertion hole so as to always close it during 770-daying. .

In order to achieve such an object, the present invention provides a disc cartridge that is provided with an air exhaust hole, a head insertion hole, and a pin insertion hole on the side surface of a case that accommodates the disc.
A dust-proof slide plate is provided with holes corresponding to the air exhaust hole and head insertion hole on the inside of the side surface of the case, and a lid part that is engaged with one end of the dust-proof slide plate and always covers the pin insertion hole. At least a transmission member is arranged, and when a pin is inserted into the pin insertion hole and the cover is retreated, the dustproof slide plate is slid by the transmission part and the air is discharged through both corresponding holes respectively. The present invention provides a disk cartridge configured to match the positions of the hole and the head insertion hole.

[For production]

According to the above configuration, the pin insertion hole on the side surface of the case is always covered from the inside by the lid of the transmission member, so that it can be kept closed even during unloading.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a disk cartridge according to an embodiment of the present invention, and the same parts as in FIG.
1 is a rack part provided at one end of the dustproof slide plate 6;
Reference numeral 6 denotes a transmission member which is pivotally supported on the case 2 by a pin 171C and has one end connected to the gear portion 1 so as to engage with the rack portion 15.
8 is ft1ll@, cover part 9 covers pin insertion hole 3.
is provided. Further, the transmission member 16 is a spring 19
The pin insertion hole 3 is always biased clockwise by the pin insertion hole 3, and therefore the lid portion 9 always acts to close the pin insertion hole 3 from the inside.

In the above configuration, when a-ding the disk case,
When the pin 13 is pushed into the pin insertion hole 3, the lid part 9 is pushed back and the transmission member 16 is rotated counterclockwise by this K, and this rotational force causes the dustproof slide plate 6 to move downward. can be slid to.

And head insertion hole 4 and hole 4 and air exhaust hole 5 and hole 5
' At the position f where the numbers coincide with each other, the head 12 opens the holes 4, 4'
Loading is completed from K when it is inserted into case 2 via K.

According to the present invention, the pin insertion hole 3 is
Since it is always covered by the lid part 9, the dustproof effect is great.

FIG. 2 shows an embodiment of the pond according to the present invention, in which the transmission member 1
6 and a gear part 2 which is pivotally supported by a cover part 9 and a pin 20.
1 are constructed from separate members. η is the shaft support pin of the song, O is the spring that connects the case 2 and the gear member 2
It is provided so as to energize the space between 1 and 2.

Even in this configuration, during unloading, the pin insertion hole 3 is always biased clockwise by the spring 191C, so the pin insertion hole 3 is always covered by the lid 9, so the same effect as in FIG. This shows an embodiment of the invention, in which one end of the dustproof sliding plate 6 is bent to form a pin part, and the transmission member 16 is a cam part 26 having a lid part 9 and a cam hole 5.
The cam hole 3 and the pin portion are engaged with each other.

According to this structure, the cover part 9 can be always biased by the spring to cover the pin insertion hole 3 in five directions, so that the pin insertion hole 3 is always closed during unloading.

During loading, when the pin 13 is inserted into the pin insertion hole 3, the lid part 9 is pushed and retreated, but this also causes the cam member part to retreat, and at this time the pin part 24 is guided downward by the cam hole B. be done. With this, the dustproof slide plate 6
1 and 212I.
The same operation is performed.

〔effect〕

As is clear from the above description of each CAK, according to the present invention, the pin insertion hole is always covered by the lid of the transmission member during unloading, so that the dustproof effect can be improved.

This makes it possible to prevent harmful dust and the like from entering from the surrounding atmosphere when the disk cartridge is not in use and is removed from the deck body for storage, transportation, transportation, carrying, etc. If dust or the like enters, it will cause problems such as crashes, and not only will it destroy the disk as a node, but it may also destroy the heavy software (data pace) χ stored on the disk. According to the invention, such adverse effects can be prevented.

[Brief explanation of the drawing]

1 to 3 are sectional views showing an embodiment of the present invention, and FIGS. 4 and 5 are a perspective view and a sectional view showing a conventional example. l... Disc, 2... Case, 3... Pin insertion hole, 4... Head insertion hole, 3't 4'... Hole,
5... Air exhaust hole, 6... Dustproof piece slide plate, 12
...Head, 13.17.20゜ρ, 24...Pin, 15...Rack part, 16...Transmission member, 18゜2
1... Gear part, 19. Z3...Spring, 6...
・Cam hole, ah... cam part.

Claims (1)

[Scope of Claims] 1. In a disc cartridge having an air exhaust hole, a head insertion hole, and a pin insertion hole on the side surface of a case housing the disc, the air exhaust hole and the head insertion hole correspond to the inside side of the case side surface. A dust-proof slide plate having a hole formed therein and a transmission member having at least a cover that is engaged with one end of the dust-proof slide plate and always covers the pin insertion hole are arranged, and the pin is inserted into the pin insertion hole. and when the lid part is retreated, the dustproof slide plate is slid by the transmission member so that both of the corresponding holes are aligned with the positions of each of the air discharge holes and the head insertion hole. disc cartridge. 2. A rack part is provided at one end of the dustproof slide plate, and a lid part and a gear part are provided on the transmission member, and the gear part is configured to engage with the rack part. A disk cartridge according to scope 1. 3. A pin portion is provided at one end of the dustproof slide plate, and a cam portion that supports the lid portion and has a cam hole is provided on the transmission member, and the cam hole is configured to engage with the pin portion. A disc cartridge according to claim 1, characterized in that: