JPH08339674A - Disk drive device - Google Patents

Abstract

PURPOSE: To prevent a shutter from being rattled and to prevent a noise from being generated in a disk drive in which a recording medium with a shutter installed at a cartridge is housed. CONSTITUTION: A disk pressure part 35 having a height of H is formed integrally on the surface of a partition wall 25 at housing parts A1, A2 in which a recording medium 1 with a shutter 3 installed at a cartridge 2 is housed. When the recording medium 1 is housed inside the housing parts, the inclined part of an upper edge 35a at the disk pressure part 35 is pressed by a sliding-side edge part 3c at the shutter 3. Thereby, even when an external vibration acts, the shutter 3 is not rattled to the direction of α and the direction of β, and it is possible to effectively prevent the shutter 3 from being rattled and to prevent a noise from being generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device in which a recording medium is provided in which a cartridge for accommodating a disk is provided with a sliding shutter for exposing the disk, and more particularly to the above-mentioned shutter rattling. The present invention relates to a disk drive device capable of preventing the generation of noise.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view of a recording medium 1 in which a disc is housed in a cartridge.
This recording medium 1 is called, for example, a mini disk, and a sliding shutter 3 is provided on a cartridge 2 which houses the disk therein. When this shutter 3 slides in the direction of the arrow α, a window is opened in the cartridge 2, and the disc inside the cartridge 2 is exposed through this window.

FIG. 7 shows an example of a disk drive device 10 that uses the recording medium 1. In this device 10, a rotatable lid 12 is attached to the front surface of a housing 11. When the lid 12 is rotated forward, the housing 11 is rotated.
The insertion portion 13 of the recording medium 1 is opened on the front surface 11a of the. Ribs 13a are provided on the left and right inner walls of the insertion portion 13, and inside the insertion portion 13, storage portions A1 to A4 are formed which are divided into four stages by the ribs 13a.

The recording medium 1 is stored in each storage section A in the insertion section 13.
It is manually inserted into 1 to A4. A disk drive unit is provided in the housing 11, and the recording medium 1 installed in any of the storage sections is selected and drawn into the disk drive unit to record or reproduce the disk in the cartridge 2. The action is taken.

[0005]

In the recording medium 1, the disk is accommodated in the cartridge 2 in a free state. Therefore, when the cartridge 2 vibrates, the disk rattles in the cartridge 2 to generate noise. There is.
Similarly, since the shutter 3 is also slidably attached to the cartridge 2 with a certain degree of freedom, when the cartridge 2 vibrates, there is a problem that the shutter 3 rattles and noise is generated. When the disk drive device 10 as shown in FIG. 7 is used as an in-vehicle device, the vehicle body vibration constantly acts on the housing 11, so that the noise is frequently generated. Especially the insertion part 13
In the case where a plurality of recording media 1 are installed in the above, the noises are generated in a multiple manner, and the noise is annoying while running.

The present invention is to solve the above-mentioned conventional problems, and provides a disk drive device capable of preventing shutter noise among noises generated when a recording medium installed in the device vibrates. The purpose is to do.

[0007]

DISCLOSURE OF THE INVENTION The present invention is a disk drive device in which a recording medium provided with a shutter for exposing the disk in a cartridge accommodating the disk is used. A shutter pressing portion for pressing the shutter to prevent movement of the shutter is provided.

Further, the shutter pressing portion is provided in a storage portion for temporarily installing a recording medium, and the recording medium located in this storage portion is sent to the loading portion and recorded or reproduced in the loading portion. The operation will be performed. In this case, the storage part corresponds to the part where the recording medium is installed. The present invention is particularly effective when a plurality of storage units are provided and each of a plurality of recording media is stored in the storage unit. However, for example, when the recording medium is installed in the loading section for recording or reproducing directly from the insertion port, the shutter pressing section is provided on the inner wall of the loading section, and the shutter of the recording medium loaded in the loading section is pressed by the shutter. It may be pressed by a part. In this case, the loading portion corresponds to the portion where the recording medium is installed.

Further, the shutter pressing portion may be integrally raised from the inner wall of the portion where the recording medium is installed. As shown in FIG. 1 and FIG. 2, the shutter pressing portion is a ridge that linearly extends along the moving direction of the recording medium (shutter opening / closing direction) on the inner wall of the portion where the recording medium is installed. It is preferable that the ridges are configured so as to contact substantially the edge of the shutter on the opening side α side of the shutter.

However, the shutter pressing portion can be formed of a thin sheet material attached to the inner wall of the portion where the recording medium is installed, or a plate that slightly projects from the inner wall and is pressed by the shutter. It is also possible to use an elastic member such as a spring.

[0011]

The present invention relates to a disk drive device which uses a recording medium in which a cartridge for housing a disk is provided with a shutter for exposing the disk. A plurality of recording media are installed in the storage unit as in the illustrated embodiment. Alternatively, only one recording medium may be stored in the storage section. A shutter pressing portion is provided on the inner wall of the storage portion, and the shutter of the recording medium stored in the storage portion is pressed by the shutter pressing portion. Therefore, the shutter does not rattle against the cartridge, and rattling noise of the shutter is prevented. Further, in the case where the recording medium inserted in the apparatus is directly sent to the loading section for performing the recording or reproducing operation and loaded, the shutter pressing section is provided in the loading section to prevent the operation noise of the shutter. It That is, the shutter pressing portion is provided at any place where the recording medium is temporarily stopped and installed in the apparatus.

Incidentally, in the recording medium, in addition to shutter noise, noise due to rattling of the disk in the cartridge occurs. This noise can be prevented by, for example, providing a magnet on the inner wall of the central portion of the storage portion and attracting the metal clamp cap at the central portion of the disk with the magnet. Alternatively, a leaf spring that intervenes in the hole on the lower surface of the cartridge may be provided, and the leaf spring may press the disc in the cartridge to prevent the disc in the cartridge from rattling. In this way, the rattling of the disk in the cartridge and the rattling of the shutter are prevented, so that the noise of the entire recording medium is completely prevented.

Further, the shutter pressing portion may be a thin sheet attached to the inner wall of the storage portion or the like, or a leaf spring protruding from the inner wall of the storage portion, but it is integrally projected from the inner wall of the storage portion. By using the protruding ridge as the shutter pressing portion, the structure of the shutter pressing portion can be simplified and the number of parts can be reduced.

As shown in FIGS. 1 and 2, the shutter pressing portion presses the shutter in the vicinity of the end in the sliding direction, and the inclined portion of the shutter pressing portion presses in the vicinity of the edge of the shutter. By doing so, it is possible to prevent both rattling of the shutter in the sliding direction and rattling of the shutter in the thickness direction of the recording medium, and it is possible to completely prevent rattling noise of the shutter.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of the disc pressing portion of the present invention, a sectional view taken along the line I-I of FIG. 3, and FIG. 2 is a side view of the disc pressing portion. I
A sectional view taken along line I, FIG. 3 is a perspective view showing a structure of the entire disk drive device, FIG. 4 is a side view of the disk drive device shown in FIG. 3, and FIG. 5 is a side view showing a disk drive device of another embodiment. It is a figure.

The disk drive device 20 shown in FIG. 3 is mainly used for mounting on a vehicle. In front of the one-din size housing 21, a rotatable lid for opening and closing the front surface 21a of the housing 21 is provided. A body 24 is provided. An insertion opening 23 is opened in the front surface 21 a, and a storage case 22 is provided inside the insertion opening 23. Storage case 22
The inside is divided by a plurality of partition walls 25, and a plurality of storage units A1 to A4 are formed.

As shown in FIG. 4, on the back side of the housing 21,
A loading unit 30 is provided. The loading section 30 moves up and down in the figure, and one of the recording media 1 stored in the storage case 22 is selected by the lifting operation of the loading section 30. In the loading section 30, a turntable 31 on which a clamp cap at the center of the disk in the cartridge 2 of the recording medium 1 is clamped, the turntable 3
A spindle motor 32 for driving 1 and a shutter 3 slide an optical head 33 facing the disk exposed from the window of the cartridge 2 by sliding in the α direction. Further, the loading unit 30 is provided with a holder 34.

As shown in FIG. 3, the recording medium 1 is stored in each of the storage portions A1 to A4 from the insertion opening 23 with the lid 24 opened. When a recording medium selection instruction is input, the loading unit 30 moves in the vertical direction in the figure, and the holder 34
The loading unit 30 stops at a position facing the storage unit to be selected. Then, the recording medium 1 is transferred from the storage portion into the holder 34, and the clamp cap of the disk in the cartridge 2 of the recording medium 1 is mounted on the turntable 31.
In this state, the spindle motor 32 rotationally drives the disk, and the optical head 33 performs reproduction or recording.

A disk pressing portion 35 is shown in FIGS. 1 and 2. The disc pressing portion 35 is integrally formed on the upper surface of each partition wall 25 (the partition wall located below each of the accommodating portions A1 to A4) formed of synthetic resin or the like. The disk pressing portion 35 protruding into the empty storage portion A1 on the upper stage and the disk pressing portion 35 protruding into the storage portion A2,
The disk pressing portion 35 pressing the shutter 3 of the recording medium 1 in the storage portion A2 is shown.

As shown in FIG. 1, the disc pressing portion 35.
Is a ridge extending linearly along the insertion direction of the recording medium 1 and the opening / closing direction of the shutter 3. Disk pressing part 3
The linear dimension of 5 is indicated by L. Also, FIG.
Then, the projecting height dimension of the protrusion of the disc pressing portion 35 from the upper surface of the partition wall 25 is indicated by H. This protruding dimension H is small. Assuming that the space between the storage units A1 to A4 in the upper and lower direction in the figure is H0 and the thickness of the portion of the recording medium 1 where the shutter 3 is not provided is T, the protrusion height H is approximately (H0- Equal to T). Or H is (H0
-T) slightly larger than

As shown in FIG. 2, the upper edge 35a of the disc pressing portion 35 has curved inclined portions (a) and (b) at both ends in the insertion direction of the recording medium 1, and the upper edge 35a of the upper edge 35a. The side surface shape is almost an arc shape. Alternatively, the side shape of the upper edge 35a may be a low triangle having a height H and inclined portions on both sides.

FIG. 6 shows the recording medium 1 (A).
Is a plan view, (C) is a bottom view, and (B) is a right side view of (A). The recording medium 1 has a disc housed in a cartridge 2, and a clamp cap 5 provided at the center of the disc has a structure as shown in FIG.
It is exposed in the central hole 2a on the bottom surface of the cartridge 2. A shutter 3 is provided on the right side of the loading direction of the recording medium 1 (the direction indicated by the arrow display 6). Usually, the cartridge 2 is made of synthetic resin and the shutter 3 is made of a metal plate. The recording medium 1 shown in FIG. 6 is capable of recording and reproducing, for example, and as shown in FIG. 6A, the upper piece 3a of the shutter 3 extends on the upper surface side of the cartridge 2, and the recording medium 1 shown in FIG. As shown in C), the lower piece 3b of the shutter 3 extends on the bottom surface side of the cartridge 2. When the shutter 3 slides in the α direction, windows are opened on both the top surface and the bottom surface of the cartridge 2, and the internal disk is exposed in this window.

In the case of a so-called soft disk in which predetermined information is already recorded on the disk and is commercially available, the upper piece 3a does not appear on the upper surface of the cartridge 2 and the lower piece 3b appears only on the bottom surface. . In this embodiment, as shown in FIG. 2, the disk pressing portion 35 projects from the inner wall on the lower surface side of each of the storage portions A1 to A4. Therefore, in any of the recording medium as shown in FIG. 6 and the soft disk described above, the lower piece 3 of the shutter 3 is
b can be pressed by the disk pressing portion 35.

As shown in FIGS. 1 and 2, when the recording medium 1 is inserted and held at the proper position in the accommodating portions A1 to A4, the disc pressing portion 35 causes the lower piece 3b of the shutter 3 to move. It is pressed near the sliding side (α side) edge portion 3c, and preferably, as shown in FIG. 2, the inclined portion (a) of the upper edge 35a of the disc pressing portion 35 is α of the lower piece 3b of the shutter 3.
It corresponds to the side edge portion 3c. Therefore, when the recording medium 1 is stored in the storage portion, the shutter 3 is prevented from rattling in the thickness direction of the recording medium 1 (β direction), and the shutter 3 rattling in the sliding direction (α direction). Is prevented. Therefore, it is possible to reliably prevent the rattling noise of the shutter.

Further, a magnet is embedded in the center of each partition wall 25 of the storage case 3, and the clamp cap (made of metal) 5 at the center of the disk in the cartridge 2 is attracted to the magnet so that the inside of the cartridge 2 is closed. The rattling of the disc is prevented. By preventing both rattling of the disk in the cartridge 2 and rattling of the shutter 3 in this manner, even if the housing 21 vibrates due to vehicle body vibration or the like, it is housed in the housing case 22. The rattling noise does not occur from each recording medium.

FIG. 5 shows another embodiment of the present invention.
In this embodiment, the nose portion (makeup portion) is provided on the front surface of the housing 21.
41 is provided, and an insertion opening 42 having a size into which only one recording medium 1 is inserted is opened in the nose portion 41. Inside the nose portion 41, the loading portion 30 that moves up and down
Is provided, and the storage case 22 is installed on the back side of the housing 21. The loading unit 30 is equipped with a transfer unit that transfers the recording medium 1 in both left and right directions in the drawing. When the recording medium 1 is inserted from the insertion slot 42 while the loading section 30 is raised to the uppermost position, the recording medium 1 is held on the loading section 30. Then, the loading section 30 descends and the storage case 2
The recording medium 1 is moved to the position of the empty storage part in 2 and the recording medium 1 is sent and stored in the storage part at this position. Further, at the time of reproduction or recording, one of the recording media 1 in the storage case 22 is pulled into the loading section 30.

Also in the embodiment shown in FIG. 5, the partition wall 25 in the storage case 22 is provided with the shutter pressing portion 35 as shown in FIGS. Further, as shown in FIG. 6 (A), in the case of a disc device in which only the recording medium 1 in which the upper piece 3a of the shutter 3 is provided on the upper surface of the cartridge 2 is loaded, the upper inner wall of each storage section is The shutter pressing portion 35 can be provided in the.

The recording medium 1 is stored in the storage case 22.
In the case where only the individual pieces are stored, the shutter pressing portion 35 may be formed on the inner surface of the storage case. Also,
The shutter pressing portion 35 may be provided on the inner surface of the side portion of the storage portion, and the side plate portion 3d (see FIG. 6B) of the shutter 3 may be pressed. Further, in the above-described embodiment, the so-called mini-disc in which the disc in the cartridge 2 is of the magneto-optical recording system is described as the recording medium 1, but the present invention is not limited to the recording medium in which the cartridge is provided with the shutter. Any of these may be used. For example, the present invention can be implemented even when the disk is an optical memory or a magnetic disk.

[0029]

As described above, according to the present invention, since the shutter pressing portion for pressing the shutter is provided at the portion where the recording medium having the shutter is installed, the installed recording medium is vibrated from the outside. Even when the shutter is given, the shutter can be prevented from rattling, and the rattling noise can be suppressed.

If the shutter pressing portion is integrally formed on the inner wall of the portion where the recording medium is installed, it is not necessary to provide the shutter pressing portion as a separate member, the number of parts is reduced, and the structure is simplified. it can.

Further, as described in the embodiments, the vicinity of the sliding direction edge of the shutter is pressed by the shutter pressing portion, and more preferably, the inclined part of the shutter pressing portion abuts the edge of the shutter in the sliding direction. By configuring,
Both rattling of the shutter in the sliding direction and rattling of the shutter in the thickness direction of the recording medium can be prevented, and shutter noise can be effectively prevented.

[Brief description of drawings]

1 is a plan view of a disc pressing portion provided in a storage portion, and is a sectional view taken along the line I-I of FIG. 3;

FIG. 2 is a side view of a disc pressing portion provided in the storage portion, showing an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing the overall structure of a disk drive device provided with a disk pressing portion,

4 is a side view of the disk drive device shown in FIG.

FIG. 5 is a side view showing a disk drive device according to another embodiment of the present invention,

6A and 6B show a structure of a recording medium, where FIG. 6A is a plan view, FIG. 6B is a right side view of FIG.

FIG. 7 is a perspective view showing a conventional recording medium driving device,

[Explanation of symbols]

 1 Recording Medium 2 Cartridge 3 Shutter 3a Upper Piece 3b Lower Piece 3c Sliding Side Edge 20 Disk Drive Device 21 Housing 22 Storage Case 25 Partition Wall 30 Loading Section 35 Disk Pressing Section 35a Upper Edge (a) Inclined Section

Claims (3)

[Claims] 1. A disk drive device using a recording medium having a shutter for exposing the disk in a cartridge containing the disk, wherein the shutter is pressed to a portion where the recording medium is installed. A disk drive device characterized in that a shutter pressing portion for preventing movement is provided. 2. The shutter pressing section is provided in a storage section for temporarily installing a recording medium, and the recording medium located in this storage section is sent to a loading section for recording or reproducing in the loading section. The disk drive device according to claim 1, wherein an operation is performed. 3. The disk drive device according to claim 1, wherein the shutter pressing portion is integrally formed by protruding from an inner wall of a portion where the recording medium is installed.