JPH0793967A - Optical disk apparatus - Google Patents

Abstract

PURPOSE:To prevent the surface or the like of an optical disk from being contaminated by a method wherein a gap between the inner wall part of an optical disk apparatus body and an optical disk cartridge is buried and a space around the optical disk and an optical head is sealed. CONSTITUTION:A first nearly rectangular elastic body 26 for sealing is installed on the surface of a base member 7, and a second elastic body 27, for sealing, which is provided with a linear part 27a on the surface and with bent parts 27b on both sides is installed at the entrance of an optical disk cartridge 4 in a cartridge holder 14. In a loading operation, the linear part 27a at the elastic body 27 is brought into pressure contact with the surface of the cartridge 4 as the holder 14 is lowered, and the bent parts 27b are brought into pressure contact with both side faces of the cartridge 4 by a claw 29 at a frame which has an inclination at the inside. In addition, when the cartridge 4 is mounted and attached, its rear surface and the rear surface of the holder 14 are brought into pressure contact with the surface of the elastic body 26 by a cartridge- holder retention spring 17. Thereby, a space 30 around a disk 3 and the mounting part of an optical head 9 is sealed hermetically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device incorporating an automatic loading mechanism for automatically mounting / discharging a disk cartridge accommodating an optical disk, which is a disk-shaped information recording medium, in the main body of the optical disk device.

[0002]

2. Description of the Related Art Generally, an optical disk device incorporates an automatic loading mechanism for automatically mounting and ejecting a disk cartridge containing an optical disk which is a disk-shaped information recording medium. Then, a large-capacity optical disc to be inserted into the optical disc device can be appropriately replaced to record information on the recording surface of the disc or reproduce information recorded on the recording surface of the disc.

Further, a disk mounted at a predetermined optical disk mounting position in the main body of the optical disk device is rotationally driven at high speed in the cartridge by a spindle motor. At this time, the recording surface of the disc is irradiated with a laser beam that is minutely focused. When information is recorded on the optical disc, information is recorded on this recording surface by heat generated by irradiation with laser light. When the information recorded on the optical disc is reproduced, the recording surface of the optical disc is irradiated with a laser beam having a specific laser power weaker than that at the time of recording to reproduce the information.

Therefore, since the laser power has a great influence on the reliability of information recording and reproduction during recording or reproduction of optical disk information, it is extremely important that the laser output is stable in the optical disk device. Is. In this case, if the laser power is too high or too low, the reliability of recording and reproducing information will deteriorate.

By the way, an optical disk device is generally used as an external storage device of a computer in an indoor environment such as a general office. However, in order to suppress a temperature rise inside the device, air outside the device is introduced into the main body of the device. Inhaled to cool the inside of the device.

In this case, since various kinds of dust are mixed in the intake air sucked from the room into the main body of the apparatus, air in such an environment is allowed to pass through the main body of the apparatus for a long period of time. Dust adheres to the inside of the device,
May be accumulated.

Further, since dust in the intake air collides with a disc rotating at a high speed during operation of the optical disc device, the dust may adhere to the surface of the disc and obstruct passage of laser light. .

When dust adheres to the optical system, which is the heart of the optical disk device body, the laser light passing through the optical path inside the device body is disturbed and its power is attenuated.
Therefore, when the optical disk device is used in a dirty environment where the density of dust is high, the performance of the optical disk device may deteriorate relatively quickly, and there is a problem in terms of durability.

Therefore, in order to solve the above problems, maintenance of the inside of the main body of the apparatus is performed by using a device for cleaning the objective lens inside the main body of the apparatus, or the inside of the disc cartridge is cleaned by using a disc cleaning device. Measures such as cleaning dust adhering to the surface of the optical disk are taken.

Further, as the dustproof structure of the optical disc apparatus, as shown in FIG. 9A, a dustproof cover c is provided on the front surface of the front panel b of the optical disc apparatus body a, and the apparatus body a is inserted even when the optical disc cartridge is inserted. There is a configuration that seals the front surface of.

Further, as shown in FIG. 9B, a cooling fan d is installed on the back surface of the apparatus body a of the optical disk apparatus,
Cooling air is ventilated from the back side of the apparatus body a toward the inside of the apparatus body a, and an air filter e is attached to the air intake port of the cooling fan d to clean the intake air through the filter e. There is a structure.
In this case, since the atmospheric pressure inside the apparatus main body a becomes higher than the atmospheric pressure outside the apparatus main body a, dust is unlikely to enter the inside of the apparatus main body a through the insertion port f of the optical disk cartridge on the front surface of the apparatus main body a.

[0012]

However, when the dustproof cover c is provided on the front surface of the front panel b, the flow of cooling air inside the apparatus main body a is obstructed, and there is a possibility that a sufficient cooling effect cannot be obtained. is there. In particular, since the essence of an optical disk device is recording by heat, there is a circumstance in which the temperature rise inside the device body a must be sufficiently suppressed.

Further, when the intake air from the air intake port of the cooling fan d is cleaned through the air filter e, there is a problem that special maintenance work such as replacement of the filter e is required.

The present invention has been made based on the above circumstances, and prevents contamination of the optical system inside the apparatus main body and contamination of the surface of the optical disk that occur when the optical disk apparatus main body is operated for a long period of time, and at the same time, the apparatus. It is an object of the present invention to provide an optical disk device that can suppress the temperature rise inside the main body and can obtain high reliability for a long period of time.

[0015]

According to a first aspect of the present invention, there is provided an optical disc cartridge in which an optical disc drive motor and an optical head are mounted on a base member in the optical disc device body, and the optical disc cartridge is inserted from a cartridge insertion port of the optical disc device body. A loading mechanism for loading between the delivery position of the optical disc cartridge and the optical disc mounting position is provided in the optical disc apparatus main body, and the optical disc cartridge is mounted at the optical disc mounting position on the base member. In an optical disc device in which an optical disc in a cartridge is connected to the drive motor and the optical head is arranged to face the optical disc so as to be accessible, the optical disc cartridge is mounted in the optical disc device body. Is provided with a sealing means for sealing the space around the optical disk and the optical head to fill the gap between the optical disk cartridge with the operation to be attached to location and an inner wall portion of the optical disc apparatus body.

According to a second aspect of the present invention, there is provided a base member which is disposed in the optical disk device main body and supports the optical disk drive motor and the optical head, and an optical disk cartridge which is inserted from a cartridge insertion port of the optical disk device main body. The cartridge holder for holding and the optical disk cartridge inserted in the cartridge holder are opposed from the transfer position of the optical disk cartridge, the optical disk in the optical disk cartridge is connected to the drive motor, and the optical head is accessible to the optical disk. A loading mechanism that loads the optical disk to a mounting position on the base member, and a substantially frame-shaped first member that is disposed on the base member in a state of surrounding the mounting portion of the optical disk drive motor and the optical head. sticker An elastic body, a second sealing elastic body arranged at the entrance of the optical disc cartridge in the cartridge holder, and the optical disc cartridge and the cartridge holder with the operation of mounting the optical disc cartridge at the optical disc mounting position. To the first sealing elastic body, and the second sealing elastic body to the first sealing elastic body so that the first sealing elastic body and the second sealing elastic body are in contact with each other. The optical disk cartridge is held between the elastic body and the sealing means for sealing the space around the optical disk and the mounting portion of the optical head.

According to a third aspect of the present invention, the second sealing elastic body according to the second aspect is such that the optical disc cartridge is mounted at the optical disc mounting position and the base member of the optical disc cartridge is used. Of the optical disc cartridge, and a straight portion which is pressed against the outer wall surface of the optical disk cartridge opposite to the facing surface and a bent portion which is disposed on both sides of the straight portion and is pressed against both side portions of the optical disk cartridge.

According to a fourth aspect of the present invention, a chamfered shape for guiding the insertion of the optical disk cartridge is provided at an edge portion on the insertion side of the optical disk cartridge in the second sealing elastic body according to the second aspect. A guide inclined surface is formed.

According to a fifth aspect of the present invention, the cartridge holder according to the second aspect is formed by a sealed structure in which a shutter opening / closing mechanism of the optical disk cartridge is incorporated in a holder body.

[0020]

According to the first aspect of the invention, the loading operation of the loading mechanism in the main body of the optical disk device is utilized to
By applying pressure to the sealing means to fill the gap between the optical disk cartridge and the inner wall of the main body of the optical disk device to seal the space around the optical disk and the optical head, an extremely advanced hermetic structure is realized. Is.

According to the second aspect of the present invention, the optical disk cartridge and the cartridge holder are pressed against the first sealing elastic member as the optical disk cartridge inserted into the optical disk apparatus main body is mounted at the optical disk mounting position. And, the second sealing elastic body is brought into pressure contact with the first sealing elastic body to hold the optical disc cartridge between the first sealing elastic body and the second sealing elastic body. By sealing the space around the mounting part, a necessary minimum area in the optical disk device body is made a sealed structure so that sufficient cooling air can be passed through the heating elements inside the optical disk device body. Therefore, the internal temperature of the optical disk device body is controlled to a state necessary for stable information recording / reproducing operation, and the optical system inside the optical disk device body is prevented from becoming dirty even during long-term operation. Can be

According to the third aspect of the present invention, the linear portion of the second sealing elastic body is opposite to the pressure contact surface of the optical disc cartridge with the base member when the optical disc cartridge is mounted at the optical disc mounting position. And the bent portions arranged on both sides of the linear portion are pressed against both side portions of the optical disk cartridge.

According to a fourth aspect of the invention, the insertion of the optical disk cartridge is guided by the chamfered guide slanting surface of the second sealing elastic body.
According to a fifth aspect of the present invention, when the optical disk cartridge is mounted at the optical disk mounting position, the sealing structure of the cartridge holder further enhances the sealing property of the sealed structure portion in the optical disk apparatus main body.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 4 shows a schematic configuration of the optical disk device, and reference numeral 1 denotes a device body of the optical disk device. An optical disc cartridge 4 for accommodating an optical disc 3 as an information storage medium is provided on a front panel 2 of the apparatus body 1.
Is provided with an insertion port 5. Further, on the inner surface side of the front panel 2, a door 5a that is opened / closed by inserting / removing the optical disk cartridge 4 is provided.

Further, as shown in FIG. 1, the cartridge body 4a of the optical disc cartridge 4 is formed with access window portions 4b for recording / reproducing on both sides at the end in the insertion direction. The access window portion 4b is configured to be opened and closed by a shutter 4c that is a double-sided integrated type. The shutter 4c is normally closed by the action of a spring (not shown), and has a structure that opens when it is inserted into the optical disk device body 1.

A circuit board 6 is provided on the top of the apparatus main body 1 and a base member 7 is provided on the bottom thereof. The base member 7 has a spindle motor (optical disc drive motor) 8 as an optical disc drive means and an optical system for irradiating a laser beam for recording or reproducing information on the optical disc 3 which is rotationally driven by the spindle motor 8. The head 9 is mounted.

The spindle motor 8 is provided with a turntable 10 as shown in FIG. 1, and this turntable 1
A motor for driving 0 is provided. In addition,
The table 10 is provided with a positioning projection 10A that fits into a rotation center hole (not shown) provided in the rotation center of the optical disk 3 and a support surface 10B that also serves as a positioning surface that regulates the lower surface position of the optical disk 3. There is.

Further, the optical head 9 has a fixed optical system 11 having a laser light source for outputting a laser beam, and a moving optical system having an objective lens 12 for condensing the laser beam sent from the fixed optical system 11 on the optical disc 3. A system 13 is provided. In this case, the base member 7 is formed with a guide groove 7 a for moving the moving optical system 13 of the optical head 9 in the radial direction (track control direction) of the optical disc 3. The moving optical system 13 of the optical head 9 is reciprocated in the radial direction of the optical disc 3 along the guide groove 7a by a linear motor (not shown).

Further, the apparatus body 1 is provided with a loading mechanism for loading the optical disk cartridge 4 inserted from the cartridge insertion opening 5 between the delivery position on the cartridge insertion opening 5 side and the optical disk mounting position in the apparatus body 1. It is built in. The loading mechanism is provided with a cartridge holder 14 formed of a sealed structure, and the optical disc cartridge 4 inserted from the cartridge insertion port 5 is held by the cartridge holder 14.

An auxiliary magnetic field device 16 and a cartridge holder pressing spring 17 are mounted on the holder body 15 of the cartridge holder 14. Furthermore, this holder body 15
As shown in FIG. 3, a shutter opening / closing mechanism 18 for opening / closing the shutter 4c of the disk cartridge 4 is incorporated therein.

The shutter opening / closing mechanism 18 has first and second
Shutter open arms 19 and 20 are provided. Here, one end of the first shutter open arm 19 is rotatably connected to the holder body 15 via an arm rotation shaft 21. The other end of the first shutter open arm 19 is connected to one end of the second shutter open arm 20 via a hinge portion 22. Further, the other end portion of the second shutter open arm 20 is provided with a pressing member 4d on the shutter 4c side of the disc cartridge 4.
Is provided with an engaging claw 20a that engages with the terminal end of the. Further, the shutter opening / closing mechanism 18 has the first and second shutter open arms 1 when the disc cartridge 4 is ejected.
There is provided a return spring (not shown) that holds 9, 20 in the standby position shown in FIG.

When the disc cartridge 4 is inserted, the engaging claw 20a of the second shutter open arm 20 is inserted.
Engages with the end of the pressing member 4d on the shutter 4c side of the disc cartridge 4, and then the first shutter open arm 19 rotates against the spring force of the return spring with the insertion operation of the disc cartridge 4 from here. The shutter 4c of the disk cartridge 4 is opened by rotating the shaft 21 in the clockwise direction in FIG.

A plurality of guide pins 23 are provided on both sides of the holder body 15 of the cartridge holder 14 so as to project therefrom. The guide pin 23 is inserted into a guide groove 25 of a loading guide 24 provided on the frame of the apparatus body 1. The guide pin 23 of the cartridge holder 14 during the loading operation of the loading mechanism.
Are guided and moved along the guide groove 24 of the loading guide 25.

Further, as shown in FIG. 1, a substantially rectangular frame-shaped first elastic member 26 for sealing is mounted on the upper surface of the base member 7 of the optical disk device main body 1. The first sealing elastic body 23 is arranged so as to surround the spindle motor 8 and the moving optical system 13 of the optical head 9 which are arranged in an exposed state on the upper surface of the base member 7.

Further, a second sealing elastic member 27 is arranged at the entrance of the optical disc cartridge 4 in the holder body 15 of the cartridge holder 14. As shown in FIG. 6, the base member 7 of the optical disc cartridge 4 is attached to the second sealing elastic body 27 with the optical disc cartridge 4 mounted at the optical disc mounting position.
The straight portion 27 pressed against the outer wall surface on the side opposite to the surface facing the
There are provided a and a bent portion 27b which is arranged on both sides of the linear portion 27a and is brought into pressure contact with both sides of the optical disc cartridge 4.

As shown in FIG. 2 (A), the second sealing elastic body 27 has a chamfered guide for guiding the insertion of the optical disk cartridge 4 to the edge portion on the insertion opening side of the optical disk cartridge 4. An inclined surface 28 for use is formed.

While the optical disk cartridge 4 is being loaded together with the cartridge holder 14 by the loading mechanism, the cartridge holder 14
The linear portion 27a of the second sealing elastic body 27 is pressed against the upper surface of the disc cartridge 4 with the descending operation of the disc, and at the same time, the bent portions 27b on both sides are bent inward as shown in FIG. The frame claws 29 are pressed against both side surfaces of the disk cartridge 4. As a result, the disc cartridge 4 is completely positioned and fixed. Therefore, the optical disk cartridge 4 and the cartridge holder 14 are brought into pressure contact with the first sealing elastic body 26 as the optical disk cartridge 4 is loaded together with the cartridge holder 14 by the loading mechanism and mounted at the optical disk mounting position. Two
The sealing elastic body 27 is pressed against the first sealing elastic body 26 to hold the optical disc cartridge 4 between the first sealing elastic body 26 and the second sealing elastic body 27, and the optical disc 3 and Sealing means for sealing the surrounding space 30 of the mounting portion of the optical head 9 between the base member 7, the optical disk cartridge 4, the cartridge holder 14, the first sealing elastic body 26, and the second sealing elastic body 27 is configured. There is.

Next, the operation of the above configuration will be described.
First, when the optical disk cartridge 4 is ejected from the optical disk apparatus body 1, the door 5a of the apparatus body 1 is closed and the cartridge holder 14 of the loading mechanism is held at the cartridge insertion standby position shown in FIG. 2 (A). To be done.

When the disc cartridge 4 is inserted, the disc cartridge 4 is inserted into the cartridge holder 14 by passing through the cartridge insertion port 5 of the front panel 2 and pushing the door 5a open. At this time, the optical disk cartridge 4 inserted from the insertion opening 5 is horizontally taken into the interior of the apparatus main body 1 and the shutter opening / closing mechanism 18 of the cartridge holder 14 causes the shutter 4c to be opened by the operation of being inserted into the cartridge holder 14. It is opened.

Further, in a state where the optical disk cartridge 4 is pushed into the inside of the apparatus main body 1 and is horizontally taken in to a predetermined position and the shutter 4c is completely opened, the disk cartridge 4 and the cartridge holder 14 are integrated. Is loaded. At this time, the guide pin 23 of the cartridge holder 14 moves along the guide groove 24 of the loading guide 25. Then, when the cartridge holder 14 reaches a predetermined position, as shown in FIG. 2B, the cartridge holder 14 moves along the guide groove 24 in an obliquely downward direction. At this time, the optical head 9 moves to the optical disk cartridge 4
It is held in a state of standing by facing the window portion 4b on the lower surface.

When the cartridge holder 14 is lowered and the optical disk 3 is chucked on the turntable 10 of the spindle motor 8, the optical head 9 moves the optical disk 3 through the window 4b on the lower surface of the optical disk cartridge 4. It is set close to the bottom surface.

Further, the optical disk 3 is the turntable 10
At the same time that the optical disc cartridge 4 and the lower surface of the cartridge holder 14 are chucked onto the upper surface of the first ring-shaped elastic body 26, the lower surfaces of the optical disk cartridge 4 and the cartridge holder 14 are pressed against the first ring-shaped elastic body 26. This pressure contact force is obtained by the cartridge holder restraining spring 17, and the spring 1
7 also serves to position the auxiliary magnetic field device 16.

Further, during the loading operation of the optical disk cartridge 4 together with the cartridge holder 14 by the loading mechanism, the linear portion 2 of the second sealing elastic body 27 is accompanied by the lowering operation of the cartridge holder 14.
7a is pressed against the upper surface of the disk cartridge 4, and at the same time, the bent portions 27b on both sides are pressed against both side surfaces of the disk cartridge 4 by the claws 29 of the frame bent inwardly as shown in FIG. . As a result, the disc cartridge 4 is completely positioned and fixed.

Therefore, the following effects can be obtained in the above embodiment. That is, the optical disc cartridge 4 and the cartridge holder 14 are pressed against the first sealing elastic body 26 as the optical disc cartridge 4 is loaded together with the cartridge holder 14 by the loading mechanism and mounted in the optical disc mounting position. The second sealing elastic body 27 is brought into pressure contact with the first sealing elastic body 26 so that the first sealing elastic body 26
Since the optical disc cartridge 4 is held between the second sealing elastic body 27 and the second sealing elastic body 27, the surrounding space 30 of the mounting portion of the optical disc 3 and the optical head 9 is set to the base member 7, the optical disc cartridge 4, the cartridge holder 14, and the first The sealing elastic body 26 and the second sealing elastic body 27 can be hermetically sealed. Therefore, it is possible to prevent the optical system inside the device body 1 from being contaminated and the surface of the optical disc 3 to be contaminated when the optical disc device body 1 is operated for a long period of time.

Further, when the main body 1 of the apparatus is incorporated in a casing such as a personal computer having a cooling fan of a discharge type, a flow of cooling air as shown by an arrow in FIG. Is formed. Therefore, the circuit board 6 that is the main heat source inside the apparatus body 1
It is possible to ventilate a sufficient amount of cooling air around, and to allow the cooling air to flow directly onto the upper surface of the auxiliary magnetic field device 16, thereby improving the cooling efficiency. Therefore, it is possible to prevent contamination of the optical system inside the apparatus body 1 and contamination of the surface of the optical disc 3 that occur when the optical disc apparatus body 1 is operated for a long time, and at the same time suppress the temperature rise inside the apparatus body 1. Therefore, high reliability can be obtained over a long period of time.

Further, since the optical disk cartridge 4 and the cartridge holder 14 can be used as a partition for preventing the intrusion of dust, a dedicated partition for preventing the intrusion of dust into the optical system inside the apparatus body 1. It is possible to simplify the internal structure of the apparatus main body 1, reduce the number of constituent parts of the apparatus main body 1, and reduce the size of the entire apparatus main body 1 without the need for specially providing.

The present invention is not limited to the above embodiment. For example, as in another embodiment shown in FIGS. 7 and 8, a seal ring 41 into which the optical disk cartridge 4 is inserted is provided on the inlet end side of the optical disk cartridge 4 in the base member 7 in the apparatus main body 1, and
The seal sheet 42 is provided on the entrance end side of the optical disc cartridge 4 in the cartridge holder 14, and the optical disc cartridge 41 and the optical disc device main body 1 are installed by the operation of mounting the optical disc cartridge 41 at the optical disc mounting position in the optical disc device main body 1. A sealing means may be configured to fill the gap between the inner wall of the optical disk 3 and the inner space of the optical disk 3 and seal the space around the optical disk 3 and the optical head 9. In this case, the seal ring 41 is the elastic pipe 43.
The fluid 44 is filled in the inside, and is deformable.

Therefore, in the above-mentioned structure, the seal ring 41 is pressed by the optical disk cartridge 4 along with the operation in which the optical disk cartridge 4 is loaded together with the cartridge holder 14 by the loading mechanism and mounted in the optical disk mounting position. By moving the fluid 44 inside the elastic pipe 43, the entire seal ring 41 can be deformed to fill the gap between the optical disc cartridge 4 and the inner wall portion of the optical disc device body 1. Therefore, also in this case, it is possible to prevent contamination of the optical system inside the apparatus body 1 and contamination of the surface of the optical disc 3 which occur when the optical disk apparatus body 1 is operated for a long period of time. In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0049]

According to the present invention, contamination of the optical system inside the apparatus body and contamination of the surface of the optical disk which occur when the optical disk apparatus body is operated for a long period of time can be prevented, and at the same time the temperature inside the apparatus body can be prevented. The rise can be suppressed, and high reliability can be obtained over a long period of time.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a main part configuration of an embodiment of an optical disk device of the present invention.

2A is a vertical cross-sectional view of a side surface showing a state where an optical disk cartridge is started to be inserted into the optical disk device of the embodiment, and FIG. 2B is a vertical cross-sectional view showing a state where the optical disk cartridge is mounted at an optical disk mounting position. Face view.

FIG. 3 is a plan view showing a cartridge shutter opening / closing mechanism in the holder body of the cartridge holder of the embodiment.

FIG. 4 is a side vertical cross-sectional view showing a ventilation state of cooling air inside the optical disk device main body of the embodiment.

FIG. 5 is a front vertical cross-sectional view showing a state where the cartridge holder of the optical disk cartridge is brought into pressure contact with the first sealing elastic body.

FIG. 6 is a front vertical cross-sectional view showing a state in which a second sealing elastic body is pressed against the optical disc cartridge.

FIG. 7 is a perspective view showing a schematic configuration of another embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view of a side surface showing a configuration of a main part of the embodiment.

9A is a perspective view of a conventional example, and FIG. 9B is a perspective view of another conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical disk device main body, 3 ... Optical disk, 4 ... Optical disk cartridge, 5 ... Cartridge insertion port, 7 ... Base member, 8 ... Spindle motor (optical disk drive motor), 9 ... Optical head, 14 ... Cartridge holder, 1
8 ... Shutter opening / closing mechanism, 26 ... First sealing elastic body,
27 ... Second sealing elastic body, 30 ... Surrounding space.

Claims (5)

[Claims] 1. An optical disk drive motor and an optical head are mounted on a base member in an optical disk apparatus main body, and an optical disk cartridge inserted from a cartridge insertion port of the optical disk apparatus main body is provided between a delivery position of the optical disk cartridge and an optical disk mounting position. A loading mechanism for loading between the optical disc device main body is provided, and the optical disc in the optical disc cartridge is connected to the drive motor in a state where the optical disc cartridge is mounted at the optical disc mounting position on the base member, and In the optical disc device in which the optical head is arranged to face the optical disc so as to be accessible, the optical disc cartridge is mounted at an optical disc mounting position in the main body of the optical disc device. Optical disk apparatus characterized in that a sealing means for sealing the surrounding space to fill the gap of the optical disk and the optical head between the ink cartridge and the inner wall portion of the optical disc apparatus body. 2. A base member, which is disposed in the main body of the optical disk device and supports an optical disk drive motor and an optical head, a cartridge holder for holding an optical disk cartridge inserted from a cartridge insertion opening of the optical disk device main body, and the cartridge. On the base member, the optical disk cartridge inserted into the holder is connected from the transfer position of the optical disk cartridge to the optical disk in the optical disk cartridge, and the optical head is arranged to face the optical disk so as to be accessible. A loading mechanism for loading to an optical disc mounting position; a substantially frame-shaped first elastic member for sealing disposed on the base member so as to surround the optical disc drive motor and the mounting portion of the optical head; A second sealing elastic body disposed at the entrance of the optical disk cartridge in the holder, and the first optical disk cartridge and the cartridge holder with the operation of mounting the optical disk cartridge at the optical disk mounting position. Between the first sealing elastic body and the second sealing elastic body by pressing the second sealing elastic body against the first sealing elastic body and pressing the second sealing elastic body against the first sealing elastic body. An optical disk device comprising: a sealing unit that holds the optical disk cartridge and seals a space around the optical disk and a mounting portion of the optical head. 3. The second elastic body for sealing is pressed against an outer wall surface of the optical disk cartridge opposite to a surface facing the base member in a state where the optical disk cartridge is mounted at the optical disk mounting position. 3. The optical disc apparatus according to claim 2, further comprising: a straight line portion that is provided on both sides of the straight line portion, and bent portions that are disposed on both sides of the straight line portion and are pressed against both side portions of the optical disc cartridge. 4. The chamfered guide inclined surface for guiding the insertion of the optical disk cartridge is formed at the edge portion of the second sealing elastic body on the insertion opening side of the optical disk cartridge. The optical disk device according to claim 2, wherein: 5. The optical disk device according to claim 2, wherein the cartridge holder is formed by a closed structure in which a shutter opening / closing mechanism of the optical disk cartridge is incorporated in a holder body.