JPH05225670A - Magnetic disk driving device - Google Patents

Abstract

PURPOSE:To simplify the constitution and to ensure the insertion of a disk cartridge by providing a taper spreading toward the outside for guiding the cartridge in its insertion into an opening part in a front bezel having the opening part for inserting and ejecting the disk cartridge. CONSTITUTION:When the disk cartridge 13 is inserted into the opening part 14 even under an inclining state of the cartridge 13 to the opening part 14, because of the taper 23 provided on the opening part 14, this taper acts as guide part to make the insertion appropriate condition, and hence a shutter 15 is surely opened. Then, when the cartridge 13 is inserted into the inside, since the opening part 14 is formed with the front bezel 11 and a tip part 16a of a front cover 16, it is also ensured that the cartridge 13 is pushed into a prescribed position without detriment to hermetic seal structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording disk drive device for rotating a recording disk.

[0002]

2. Description of the Related Art FIGS. 5 (a) to 5 (f) are explanatory views of the configuration and operation of an optical disk drive device filed by the applicant of this application (Japanese Patent Application No. 2-248913). Shutter main body 2 and the shutter main body 2 to the main body case 3
The shutter 4 has a leg portion 4 provided so as to extend inward, and the rotation center 5 of the shutter 1 is located below the extension line of the lower surface of the optical disc cartridge 6 at the time of insertion in the direction of the driving unit 7 such as a motor. It is installed by rotatably supporting the end portion of the foot portion 4.

The optical disk cartridge 6 is provided with an opening 8
When the optical disk cartridge 6 is inserted into the main body case 3 from above, the tip of the optical disk cartridge 6 first comes into contact with the tip 9a of the projection 9 of the shutter body 2 (FIG. 5A). When the optical disc cartridge 6 is further inserted, the shutter 1 rotates clockwise around the rotation center 5, and the lower portion 9b of the protrusion 9 rises along the tip surface of the optical disc cartridge 6 (see FIG. 5).
(b)), the lower portion 9b of the protrusion 9 is the optical disk cartridge 6
When reaching the upper side surface (FIG. 5 (c)), the optical disk cartridge 6 enters the main body case 3. When the protrusion 9 is achieved at the end of the optical disk cartridge 6,
(FIG. 5 (d)), the shutter 1 receives the urging force of an urging spring (not shown), and rotates counterclockwise about the rotation center 5 (FIG. 5 (e)) to close the opening 8. (Fig. 5 (f)).

In the above-mentioned optical disk drive apparatus, the rotation center 5 of the shutter 1 is installed in the main body case 3 away from the opening 8 toward the drive means 7 so that the optical disk cartridge 6 is mounted in the main body case 3. The opening / closing operation of the shutter 1 can be prevented from being hindered.
The opening portion 8 can be reliably closed by means of the above, the installation space of the shutter 1 can be made small, and further, the movement operation of the optical disk cartridge 6 with respect to the shutter 1 can be made smooth, and the opening / closing operation of the shutter 1 can be made surely and smoothly.
It is possible to prevent dust from entering the body case 3.

[0005]

In the above conventional apparatus, the optical disk cartridge 6 is brought into contact with the shutter 1 and the opening 8 is opened by rotating the shutter 1. Therefore, the optical disk cartridge 6 is inserted into the opening 8. There may be a case where the shutter 1 cannot be rotated depending on the angle.

Further, since the shutter 1 itself is large in order to close the opening 8, the space required for opening and closing the shutter is required to be relatively large, resulting in an increase in size of the apparatus.

Further, in the manual loading type optical disc drive, it is necessary to push the optical disc cartridge 6 until the loading is completed, but there is a problem that it is difficult to push the optical disc cartridge 6 into the main body case 3.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording disk drive device which has a simple structure and can be miniaturized, and in which a disk cartridge can be inserted reliably and easily.

[0009]

In order to achieve the above object, the present invention provides a front having a drive means for receiving and rotating a recording disk housed in a disk cartridge, and an opening for inserting and removing the disk cartridge. In a recording disk drive device including a bezel and a rotatable shutter having a center of rotation installed in the direction of the drive means to open and close the opening, the opening has a taper that spreads outward. Is characterized by.

Further, the front bezel has a shape in which an opening portion projects.

Further, the projecting shape of the front bezel is arcuate.

Further, a locking hole is provided at one end of the side plate supporting the front bezel, an engaging projection formed at one end of the front bezel is locked in the locking hole, and the other end of the front bezel is connected to the side plate. It is characterized by being screwed to.

The shutter is rotatably supported by a front cover, and a part of the front cover is extended to form the opening with the front bezel.

[0014]

According to the above means, since the opening has a taper, the insertion angle of the disk cartridge is widened within the range of the taper angle, and the tape cartridge is guided by the taper to facilitate the insertion of the disk cartridge.

By making the front bezel projecting, a large-sized shutter mechanism is mounted, and even if the front bezel is molded with resin, it is possible to secure the minimum wall thickness that can guarantee durability and heat resistance.

Further, by forming the front bezel into an arcuate shape, in the case of a resin front bezel, the moldability is good and the material efficiency is good.

Further, the engaging projection is locked in the locking hole of the side plate,
Moreover, the front bezel can be easily fixed to the side plate by screwing.

Further, since a part of the front cover extends to the front bezel to form an opening, the front cover keeps the inside of the apparatus airtight and prevents dust from entering, and the disc cartridge can be securely inserted. And easier.

[0019]

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

FIG. 1 is an exploded perspective view of an essential part of one embodiment of the present invention, and FIG. 2 is an explanatory view showing this embodiment after assembling the front bezel of FIG. 1 taken along the line AA. Reference numeral 11 is a front bezel having an opening 14 for inserting and removing the disk cartridge 13 in which the recording disk 12 is stored, 15 is a shutter for opening and closing the opening 14, 16 is a front cover, 17 is a pair of supporting the front bezel 11. Side plate, 18 is shutter 15
An urging spring 19 for urging the shutter 14 in the closing direction of the opening 14 is provided between the front cover 16 and the shutter 15, and a crank for opening the shutter 15 when the disc cartridge 13 is ejected. Is.

Similar to the shutter 1 described with reference to FIG. 5, the shutter 15 has a shutter body 20 having an arcuate shape in a side view, and a foot portion provided so as to extend inward from the shutter body 20. It consists of 21 and. The foot portion 21 is rotatably supported by a shaft portion 22 which is a rotation center provided on a side portion of the front cover 16. Similar to the shutter 1 in FIG. 5, the shaft portion 22 is installed below the extension line of the lower surface of the disk cartridge 13 at the time of insertion, in the direction of a driving means including a motor (not shown).

A taper 23 is formed in a part of the opening 14 of the front bezel 11 so as to spread outward. Locking holes 24 are formed in both upper side portions of the front bezel 11, and female screw portions 25 are provided in both lower side portions. On the other hand, on the pair of side plates 17, engaging projections 26 that are respectively engaged with the engaging holes 24 are provided on the upper side, and the female screw portion.
A fixing portion 28 fixed by screwing a screw 27 into 25 is formed. Therefore, the front bezel 11 has an engaging protrusion.
It is easily fixed to the side plate 17 by hooking 26 into the locking hole 24 and screwing two screws 27.

The front cover 16 is fixed to the apparatus main body (not shown) and supports the shutter 15 as described above. Since the shutter mechanism as a whole is relatively large, the front cover 16 is attached to the side plate 17. And shutter 15
The window portion 29 is formed so as to escape the abutment with the contact hole, and the size is reduced. Further, the shutter 15 and the front bezel 11 are brought as close as possible to each other, and as shown in FIG. 4, the front end 16a of the front cover 16 is extended to a part of the opening 14, thereby achieving downsizing and dust prevention. It is designed to maintain the hermeticity.

The front bezel 11 has a shape such that the opening portion 14 projects outward, and the front bezel 11 is made of resin, and the durability and heat resistance are high even if the shutter mechanism is enlarged. The minimum wall thickness that can be guaranteed is ensured. Furthermore, by forming the above-mentioned protruding shape into an arc shape, resin moldability is good and material efficiency can be improved.

In the embodiment having the above structure, when the disc cartridge 13 is inserted into the opening 14, the disc cartridge 13 is angled with respect to the opening 14 (see the disc cartridges 13 'and 13 "in FIG. 2). Status)
Since the opening 14 is provided with the taper 23, the taper 23 portion serves as a guide portion and is inserted in an appropriate state, so that the shutter 15 can be reliably opened.

Further, as shown in FIG. 3, a disk cartridge
Since the opening 14 is formed by the front bezel 11 and the tip 16a of the front cover 16 when the 13 is inserted into the inside, the disc cartridge is not damaged without damaging the sealing structure.
It is possible to reliably push 13 to the predetermined position.

[0027]

As described above, according to the present invention,
The taper of the opening allows the disc cartridge to be inserted properly, and by making the front bezel with the opening a protruding shape, even if a resin front bezel is adopted,
The minimum wall thickness that can guarantee durability and heat resistance can be secured, and by forming the projection shape into an arc shape, moldability is improved, material efficiency can be improved, and the engagement projection and the locking hole The front bezel can be fixed to the side plate by locking and screwing, and the assembling property can be improved. Moreover, the assembling space can be reduced, and the front cover and the front bezel form the opening to maintain the airtightness. Since the disc cartridge can be inserted surely and easily, it is possible to provide a recording disc drive which has a simple structure and can be downsized, and in which the disc cartridge can be inserted surely and easily.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of a recording disk drive device of the present invention.

FIG. 2 is an explanatory view showing the present embodiment after assembly in which the front bezel of FIG. 1 is sectioned along the line AA.

FIG. 3 is an explanatory diagram when a disc cartridge of this embodiment is inserted.

FIG. 4 is a perspective view showing a front state of a front bezel.

FIG. 5 is an explanatory diagram of an optical disk drive device.

[Explanation of symbols]

11 ... Front bezel, 12 ... Recording disc, 13 ... Disc cartridge, 14 ... Opening part, 15 ... Shutter,
16 ... Front cover, 16a ... Tip, 17 ... Side plate, 2
2 ... Shaft (center of rotation), 23 ... Taper, 24 ... Locking hole, 2
5 ... Female thread part, 26 ... engaging protrusion, 27 ... screw, 28 ... fixing part.

Claims (5)

[Claims] 1. A drive means for receiving and rotating a recording disk housed in a disk cartridge, a front bezel having an opening for inserting and removing the disk cartridge, and a center of rotation installed in the direction of the driving means to provide the opening. A recording disk drive device including a rotatable shutter for opening and closing a portion, wherein the opening has a taper that spreads outward. 2. The recording disk drive device according to claim 1, wherein the front bezel has a shape in which an opening portion projects. 3. The recording disk drive device according to claim 2, wherein the protruding shape of the front bezel is an arc shape. 4. A locking hole is provided at one end of a side plate that supports the front bezel, an engaging projection formed at one end of the front bezel is locked at the locking hole, and the other end of the front bezel is fixed at the other end. 2. The recording disk drive device according to claim 1, wherein the side plate is screwed. 5. The recording according to claim 1, wherein the shutter is rotatably supported by a front cover, and a part of the front cover is extended to form the opening with the front bezel. Disk drive.