JPH0887873A - Dust-proof unit for recorder/reproducer - Google Patents

Abstract

PURPOSE: To realize a reliable dust-proof unit for a recording and/or a reproducing section. CONSTITUTION: A section 12 for recording and/or reproducing a disc 2 inserted through a disc insertion port 5 of a main housing 4 is set in a dust-proof housing 10 and disposed in the main housing 4. The disc insertion port 5 is provided with an opening cover 6 and the gap G1 , between the dust-proof housing 10 and the front panel 42 of the main housing 4, is sealed hermetically with a dust-proof member 18 on the outer periphery of the disc insertion port 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus suitable for being applied to a disk device for recording and / or reproducing a recording medium such as an optical disk or a magneto-optical disk, and more particularly to recording and / or reproducing. The present invention relates to a dustproof device for dustproofing a part.

[0002]

2. Description of the Related Art Conventionally, in a disk device for recording and / or reproducing an optical disk, a magneto-optical disk or the like, a recording and / or reproducing unit in which a disk table, an optical pickup or the like is arranged is housed in a dustproof casing. There is a case where the recording and / or reproducing unit is incorporated into the exterior and a disc insertion opening formed on the front panel of the exterior of the main body is attached to protect the recording and / or reproducing unit from dust.

[0003]

However, conventionally, there are many cases in which there is a minute gap between the dustproof casing and the front panel of the exterior of the main body, and this gap reduces the dustproof function of the recording and / or reproducing section. ing.

Particularly, in order to achieve the vibration-proof function of the recording and / or reproducing unit, the whole dustproof casing is elastically supported by a damper or the like inside the main body exterior, and the dustproof casing and the main body exterior are separated from each other. This is a problem because a gap must be formed between them.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a dustproof device for a recording / reproducing apparatus capable of reliably dustproofing the recording and / or reproducing section.

[0006]

A dustproof device for a recording / reproducing apparatus according to the present invention for achieving the above object is housed in a dustproof casing and a main body exterior provided with a recording medium insertion opening with an opening / closing lid. And a recording and / or reproducing unit for recording and / or reproducing the recording medium inserted from the recording medium insertion port, and the outer periphery of the recording medium insertion port, and the dustproof casing and the And a dustproof member for sealing a gap between the main body exterior and the exterior.

[0007]

The dustproof device of the recording / reproducing apparatus of the present invention configured as described above has a dustproof casing for the recording and / or reproducing section for recording and / or reproducing the recording medium inserted from the recording medium insertion opening of the main body exterior. It is housed inside and placed inside the main body exterior, the opening / closing lid is provided for the recording medium insertion opening, and the gap between the dustproof housing and the main body exterior is sealed with a dustproof member on the outer periphery of the recording medium insertion opening. is there.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a dustproof device for a disk device to which the present invention is applied will be described below with reference to the drawings.

First, in an example of a recording / reproducing apparatus, the disk device 1 records and / or reproduces a disk 2 such as an optical disk or a magneto-optical disk which is an example of a recording medium. The disk 2 is a disk cartridge 3 It is used by being stored inside. A center hole 2a is formed in the disc 2.

The substantially rectangular main body exterior 4 of the disk device 1 is composed of a plurality of horizontal and vertical chassis 40 made of thick sheet metal or the like, and screws around the chassis 40. For mounting an exterior plate 41 made of a thin metal plate attached, a front panel 42 made of synthetic resin or the like and attached to the front side of the chassis 40 with screws or the like, and with screws on the bottom of the chassis 40 or the like. It is constituted by four leg portions 43 made of rubber or the like attached.

The front panel 42 of the main body exterior 4 is provided with a horizontally long horizontal disk insertion slot 5 which is a recording medium insertion slot. However, the disc insertion opening 5 is formed to be slightly deviated to one side from the center position of the front panel 42 in the left-right direction.

An opening / closing lid 6 for opening / closing the disc insertion opening 5 is attached to the outside of the front panel 42.

As shown in FIGS. 5 and 6, the opening / closing lid 6 is made of synthetic resin or the like, and is centered around a pair of left and right fulcrum shafts 7 provided on the lower end side. 6 is rotatably attached in the up and down directions indicated by arrows a and b. The opening / closing lid 6 is rotationally biased in the direction of arrow a, which is the closing lid direction, by a torsion coil spring 8 which is a biasing means. Further, a substantially rectangular ring-shaped packing 9 made of rubber or the like is attached along the end surface of a horizontally long rectangular rib 6a integrally formed on the back side of the opening / closing lid 6 by adhesion or the like. . The packing 9 is pressed against the outer surface 42a of the front panel 42 by the spring force of the torsion coil spring 8 onto the outer circumference of the disk insertion opening 5 in the direction of arrow a, thereby sealing the disk insertion opening 5 from the outside.

Although the opening / closing lid 6 is attached to the outer side surface 42a of the front panel 42 by the outward opening method here, the opening / closing lid 6 is similarly opened to the inner side surface 42b of the front panel 42 in the same manner. The outer surface 42a and the inner surface 42b of the front panel 42 may be attached to the inside or outside 2
A heavy lid may be attached.

Next, a dustproof casing 10 having a substantially rectangular shape smaller than the main body exterior 4 is horizontally arranged inside the main body exterior 4. However, this dustproof casing 10 is displaced in two directions inside the main body exterior 4 in accordance with the disc insertion opening 5, that is, the front panel 42 side and one side (leftward and downward in FIG. 1A). It is located at the designated position.

The dustproof casing 10 is a mechanical chassis 100 made of aluminum die cast or the like, and the mechanical chassis 1
The upper and lower sides of 00, the upper and lower sides, the left and right sides, and the back side are hermetically sealed by a casing 101 made of a thin metal plate or the like attached by a plurality of setscrews 102 with screws or the like. The front panel 42 is provided on the front surface 101a, which is the front side of the housing 101 of the dustproof housing 10.
A horizontally long opening 11 is formed so as to face the disc insertion opening 5.

The disk 2 is placed in the dustproof casing 10.
A recording and / or reproducing unit 12 for recording and / or reproducing is stored. The recording and / or reproducing unit 12 includes a spindle 13 and a disk table 14 for rotationally driving the disk 2, a spindle motor 15 for integrally rotationally driving them, an optical pickup, and an external magnetic field head (whichever is necessary). (Not shown), and a loading and ejecting mechanism 16 for loading and ejecting the disk 2 to the spindle and the disk table 14 in the dustproof casing 10 by the disk cartridge.

The mechanical chassis 100 of the dustproof casing 10
A floating structure in which the lower four corners are elastically supported on the upper part of the chassis 40 of the main body exterior by four dampers 17 is adopted, and the vibration-proof function of the entire dust-proof casing 10 is provided.

At this time, as shown in FIG. 7, these four dampers 17 have a shape in which, for example, a substantially hemispherical damper main portion 17a and a lower flange 17b are integrally molded by an elastic member such as rubber. It is configured. Then, the lower flange 17b is horizontally attached to the chassis 40 by a pair of stoppers 170 such as snap pins, and the damper contact portions 100a formed at the four lower corners of the mechanical chassis 100 are placed on the damper main portion 17a. There is. Then, a set screw 171 vertically inserted from above into the damper contact portion 100a is screwed into a nut 172 which is integrally insert-molded on the top of the damper main portion 17a to be fixed.

Therefore, even if the chassis 40 vibrates in the horizontal and vertical directions due to external vibration applied to the main body exterior 4, the external vibration is absorbed by the four dampers 17, so that the entire dust-proof casing 10 is vibration-proofed. The function is obtained.
The damper 17 may have various shapes.

In order to obtain the anti-vibration function of the entire dustproof casing 10, the front face 10a and the rear face of the dustproof casing 10 are prevented so that the dustproof casing 10 does not collide with the inner wall of the main body exterior 4 due to external vibration or the like. 10b, left and right side surfaces 10c and upper surface 10
d, the front inner wall surface 4a of the main body exterior 4, the rear inner wall surface 4b,
Sufficient gaps G ₁ , G ₂ , G ₃ and G ₄ must be formed between the left and right inner wall surfaces 4c and the upper inner wall surface 4d.

However, the dustproof casing 10 is provided in the front gap G ₁ .
The opening 11 is arranged, and the dustproof function in the dustproof casing 10 is deteriorated.

Therefore, a dustproof member 18 capable of sealing the front gap G ₁ existing between the front surface 10a of the dustproof casing 10 and the front inner wall surface 4a of the main body exterior 4 on the outer periphery of the disc insertion slot 5 is provided. It is attached.

The dustproof member 18 is formed of a member having dustproofness and flexibility, such as neoprene sponge, moltoprene sponge, rubber, filter paper, etc., in a substantially rectangular ring shape.

Then, as shown in FIGS. 5 and 6, for example, the opening 11 is formed in the front surface 101a of the housing 101 of the dustproof housing 10.
The dustproof member 18 is held by a substantially rectangular ring-shaped dustproof member holding rib 19 formed on the outer periphery of the disc, and the dustproof member 18 is arranged on the outer periphery of the disc insertion opening 5 in the front gap G ₁ . . Then, the front and rear end surfaces 18a and 18b of the dustproof member 18 are integrally formed with the inner side surface 42b of the front panel 42, and the substantially square ring-shaped rib 42c and the casing 10 are formed.
Both the front surface 101a and the front surface 101a of No. 1 are elastically pressed with a low contact force.

At this time, if necessary, the dustproof member 18
May be adhered to the dustproof member holding rib 19 or the front surface 101a or the like, or the dustproof member holding rib 19 may be integrally formed on the inner side surface 42b of the front panel 42 so that the front and rear ends of the dustproof member 18 are provided with a pair of dustproof members. It may be held by the member holding rib 19.

As a result of the above, as shown by hatching in FIGS. 1A and 1B, the entire inside of the dustproof casing 10 connected to the disc insertion opening 5 having the opening / closing lid 6 through the opening 11 is protected by the dustproof member 18. Can be completely sealed, record and / or
Alternatively, the extremely high dustproof function of the reproducing unit 12 can be obtained.

Even so, since the dustproof member 18 has flexibility and is brought into contact with the front panel 42 and the casing 101 with a low contact force, the vibration prevention of the entire dustproof casing 10 by the four dampers 17 is performed. It does not interfere with any function.

A structure in which the dustproof casing 10 is fixed on the chassis 40 and the recording and / or reproducing unit 12 in the dustproof casing 10 is floated on the mechanical chassis 40 via a plurality of dampers 17 is also adopted. It is possible. At this time, since the dustproof casing 10 itself does not need to have the dustproof function, the dustproof member 18 does not need to be flexible.

At the time of loading the disc 2, as shown in FIG. 6, the opening / closing lid 6 is rotated in the direction of arrow b against the torsion coil spring 8 to open the disc insertion opening 5. Then, the disc cartridge 3 is inserted horizontally from the disc insertion port 5 into the loading and ejecting mechanism 16 of the recording and / or reproducing unit 12 in the dustproof casing 10 through the opening 11 in the direction of arrow c. Then, FIG. 2 and FIG.
As shown in FIG. 3, the loading and ejecting mechanism 16 causes the disc cartridge 3 to be horizontally drawn in the dustproof casing 10 in the direction of arrow c, and then vertically lowered in the direction of arrow d, so that the disc 2 in the disc cartridge 3 is removed. It is inserted into the spindle 13 through the center hole 2a and mounted horizontally on the disc table 14.

Therefore, as shown in FIG. 5, the opening / closing lid 6 is rotated in the direction of the arrow a by the torsion coil spring 8 and the disc insertion opening 5 is sealed from the outside by the packing 9 so that the entire interior of the dustproof casing 10 is completely closed. Seal tightly.

Then, the disk 2 is rotationally driven integrally with the spindle 13 and the disk table 14 by the spindle motor 15 of the recording and / or reproducing unit 12, and the optical pickup and an external magnetic field head are used as necessary to 2. Perform desired recording and / or reproduction.

At the time of recording and / or reproducing of the disc 2, since the entire inside of the dustproof casing 10 is completely sealed, it is possible to completely prevent dust and the like from entering the recording and / or reproducing unit 12. . Therefore, the output reduction due to the adhesion of dust and the like to the disc 2 does not occur at all, and the disc 2
The recording and / or reproducing characteristics of can be remarkably improved.

When the disc 2 is ejected after recording and / or reproducing the disc 2, as shown in FIG.
The opening / closing lid 6 is opened in the direction of the arrow b, and as shown in FIGS. 2 and 4, by the loading and ejecting mechanism 16,
After the disc cartridge 3 is lifted vertically in the direction of arrow e to separate the disc 2 from the spindle 13 and the disc table 14, the disc cartridge 3 is removed from the dustproof casing 10 through the opening 11 and the disc insertion opening 5 to the outside of the front panel 42. It will be discharged horizontally in the direction of arrow f.

By the way, if the heat-generating components are housed in the dustproof casing 10 by completely sealing the inside of the dustproof casing 10, heat will be trapped inside the dustproof casing 10.

Therefore, as shown in FIGS. 1 to 4, the dustproof casing 10 is provided inside the main body exterior 4 with two parts, one on the front panel 42 side and one side (leftward and downward in FIG. 1A). To the other side of the internal partition wall 44 and the exterior plate 41 (upward side in FIG. 1) inside the main body exterior 4 and outside the dustproof casing 10.
A heat generating component storage portion 20 surrounded by is formed, and a heat generating component (not shown) that is a heat generating source such as a power supply circuit and an amplifier is stored in the heat generating component storage portion 20.

A heat dissipation vent 21 in the shape of an armor plate, which is connected to the inside of the heat generating component housing 20 through the gap G ₁ on the front side, is formed horizontally wide along the lower portion of the opening / closing lid 6 of the front panel 42. are doing.

As a result, it is possible to prevent heat generated from the heat-generating components in the heat-generating component housing 20 from being trapped inside the dust-proof housing 10 in addition to using the horizontally long and wide heat-dissipating vents 21. The inside of the heat-generating component storage section 20 can be efficiently cooled by air.

The embodiment of the present invention has been described above.
The present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the disk cartridge type disk device is shown as an example of the recording / reproducing apparatus, but a tray type disk device for loading and ejecting a bare disk by a tray may be used.

Further, this recording / reproducing apparatus can be applied to a recording / reproducing apparatus for recording and / or reproducing various recording media such as disk-shaped recording media and tape-shaped recording media.

[0042]

The dustproof device of the recording / reproducing apparatus of the present invention configured as described above has the following effects.

According to a first aspect of the present invention, the recording and / or reproducing unit for recording and / or reproducing the recording medium inserted from the recording medium insertion opening of the main body exterior is housed in the dustproof casing and disposed inside the main body exterior. Since the opening / closing lid is provided at the recording medium insertion port and the gap between the dustproof casing and the main body exterior is sealed by the dustproof member on the outer periphery of the recording medium insertion port, the inside of the dustproof casing can be completely sealed. Therefore, an extremely high dustproof function of the recording and / or reproducing unit can be obtained, recording and / or reproducing can be remarkably improved, and a highly reliable and high-quality recording / reproducing apparatus can be obtained.

According to a second aspect of the present invention, the recording and / or reproducing section for recording and / or reproducing the recording medium inserted from the recording medium insertion opening of the main body exterior is housed in the dustproof casing and disposed inside the main body exterior. This dustproof casing is elastically supported inside the main body exterior by a vibration damping damper, an opening / closing lid is provided at the recording medium insertion opening, and a gap between the dustproof enclosure and the main body exterior is provided on the outer periphery of the recording medium insertion opening. Since the above is sealed with a flexible dustproof member, it is possible to obtain an extremely high dustproof function of the recording and / or reproducing unit without interfering with the antivibration function of the recording and / or reproducing unit.

According to a third aspect of the present invention, the dustproof member is made of a member having dustproofness and flexibility such as neoprene sponge, moltoprene sponge, rubber, filter paper, etc., so that the dustproof function of the recording and / or reproducing portion is surely maintained. it can.

According to a fourth aspect of the present invention, there is provided a biasing means for biasing the opening / closing lid to close the lid, and a packing for sealing the outer periphery of the recording medium insertion opening with the opening / closing lid. The dustproof function can be reliably maintained.

According to a fifth aspect of the present invention, the heat-generating component storage portion is arranged inside the main body exterior and outside the dustproof casing, and the heat-radiating ventilation holes of the heat-generating component storage portion are provided in the main body exterior. The heat generated from the heat generating component is not trapped inside the dustproof casing, and the reliability and durability are improved.

According to a sixth aspect of the present invention, the recording and / or reproducing section records and / or reproduces the disc-shaped recording medium, so that dust can be surely prevented during recording and / or reproduction of the disc-shaped recording medium.

[Brief description of drawings]

1A is a schematic plan view of an entire disk device for explaining an embodiment of the present invention, and FIG. 1B is a schematic side view of FIG. 1A.

FIG. 2 is an enlarged cross-sectional side view taken along the line AA of FIG.

FIG. 3 is an enlarged front view taken along the line BB of FIG.

FIG. 4 is an enlarged cross-sectional side view taken along the line C-C of FIG.

FIG. 5 is an enlarged sectional side view taken along the line D-D of FIG. 3 for explaining the attachment structure of the dustproof member of the above disk device.

FIG. 6 is an enlarged cross-sectional side view showing an open state of the opening / closing lid of FIG.

FIG. 7 (A) is a diagram for explaining the structure of the damper.
7A is an enlarged cross-sectional side view taken along the line EE of FIG.
7B is a cross-sectional plan view taken along the line FF of FIG. 7A.

[Explanation of symbols]

1 disc device (recording / reproducing device) 2 disc (recording medium) 4 main body exterior 40 main body exterior chassis 41 main body exterior exterior plate 42 main body exterior front panel 44 main body exterior internal partition wall 5 disc insertion port (recording medium insertion port) 6 Opening / closing lid 7 Support shaft 8 Torsion coil spring (biasing means) 9 Packing 10 Dust-proof housing 100 Dust-proof mechanical chassis 101 Dust-proof housing 101a Front of dust-proof housing 11 Dust-proof housing opening 12 Recording and / or playback Part 17 Damper 18 Dustproof member 19 Rib for holding dustproof member 20 Heat generating component storage part 21 Radiating air vent G ₁ Gap between front face of dustproof casing and front panel of main unit exterior

Claims (6)

[Claims] 1. A main body exterior provided with a recording medium insertion opening with an opening / closing lid, and a main body exterior housed in a dustproof casing,
A recording and / or reproducing unit for recording and / or reproducing the recording medium inserted from the recording medium insertion port and an outer periphery of the recording medium insertion port closes a gap between the dustproof casing and the main body exterior. A dustproof device for a recording / reproducing apparatus, comprising: a dustproof member. 2. A main body exterior provided with a recording medium insertion opening with an opening / closing lid; and a main body exterior housed in a dustproof casing,
A recording and / or reproducing unit for recording and / or reproducing the recording medium inserted from the recording medium insertion port; a vibration damping damper for elastically supporting the dustproof casing inside the main body exterior; A dustproof device for a recording / reproducing apparatus, comprising: a dustproof member having flexibility to seal a gap between the dustproof casing and the main body exterior at an outer periphery of a medium insertion port. 3. The recording / reproducing apparatus according to claim 1, wherein the dustproof member is formed of a member having dustproofness and flexibility such as neoprene sponge, moltoprene sponge, rubber and filter paper. Dustproof device. 4. An urging means for urging the opening / closing lid to close, and a packing for sealing the outer periphery of the recording medium insertion opening with the opening / closing lid. Alternatively, the dustproof device of the recording / reproducing apparatus according to claim 3. 5. A heat-generating component storage portion is arranged inside the main body exterior and outside the dustproof casing, and a heat dissipation vent for the heat generating component storage portion is provided in the main body exterior. The dustproof device of the recording / reproducing apparatus according to claim 1, 2 or 3, or 4. 6. The recording and / or reproducing unit records and / or reproduces a disc-shaped recording medium, according to claim 1, 2 or 3, or 4 or 5. Dustproof device for recording / playback device.