JP2003109370A - Disk type recorder/player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk type recorder/player assembling work for which is simplified and assembling man-hour is reduced. SOLUTION: An optical pickup 33 for a DVD, an optical pickup 34 for a DVR and a turntable 43 constituting a rotary driving part for a disk are mounted on a base unit 30 of a flat dish shape. Chucking sliders 20 are incorporated with both sides of the base unit 30 with pins 31 at both sides of the base unit 30 inserted into cam grooves 23 of the chucking sliders 20, and the both chucking sliders 20 are connected with a connection plate 50. The base unit 30 is inserted downward into an outer housing 10 in this state, point parts of the pins 31 are guided into vertical grooves 32 formed on inner side faces of both side plates of the outer housing 10, and a screw 22 is made to go through a long hole 21 of the connection plate 50 to be screwed into a cap nut 51 fixed to the bottom part of the outer housing 10 through a though hole 52 formed on the base unit 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc-type recording / reproducing apparatus, and more particularly to a disc-type recording / reproducing apparatus which records and / or reproduces by a pickup while rotating a disc-shaped recording medium.

[0002]

2. Description of the Related Art A disk type recording / reproducing apparatus for recording and / or reproducing using a disk-shaped recording medium composed of an optical disk such as a CD (compact disk) or a DVD is widely used for recording and reproducing music and video. Has been. Further, such a disk-shaped recording medium is used as a storage device of an information processing device such as a computer.

In this case, the disc-shaped recording medium is placed on a tray, and the tray is pulled from the pull-out position to the recording / reproducing position. Then, in this state, the turntable rises from below, and the disk-shaped recording medium is floated from the tray and driven to rotate. In such a state, recording or reproducing is performed on the disc-shaped recording medium while moving the optical pickup in the radial direction.

[0004]

As described above, in the disk type recording / reproducing apparatus, the recording medium composed of the optical disk is moved to the recording / reproducing position by the tray, and recording or reproduction is performed by using the optical pickup provided in the housing. I am trying. Here, since the base unit in which the optical pickup is mounted is a precision instrument, the parts to be held during assembly are limited. In addition, since it is vulnerable to shock and dust, it requires careful handling. Particularly, in the case of a drive unit having a dustproof housing structure, there is a problem that the assemblability is generally poor due to various restrictions.

Further, when a structure is adopted in which an optical pickup for recording or reproducing to and from a disk-shaped recording medium and a rotary drive section for rotating the disk are incorporated into the base unit, the tray is pulled to the recording / reproducing position. In this state, the base unit must be raised and the base unit must be lowered after the recording / reproducing operation is completed to prevent interference with the tray. The base unit having such an elevating function has a problem that rattling is likely to occur particularly at the time of recording / reproducing at the ascended position.

Further, by making the housing of such a disk type recording / reproducing device a dustproof structure, it becomes possible to protect the optical head for recording / reproducing at a particularly high density from dust. However, when the dustproof structure is adopted, the heat is hardly dissipated due to the sealed structure inside, which causes a problem that the temperature rise of the components such as the laser diode generating the laser beam of the optical pickup cannot be avoided.

The present invention has been made in view of the above problems, and it is easy to assemble the base unit, which is a precision component that is vulnerable to impact and dust, and the base unit rattles during operation. It is an object of the present invention to provide a disk type recording / reproducing device which does not cause sticking and can suppress the temperature rise of internal parts even if a sealed structure is adopted.

[0008]

The main invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium. A base unit having a rotary drive unit for rotationally driving the medium; and chucking sliders arranged on both sides of the base unit so as to support the base unit so as to be lifted and connected to each other by connecting plates. The present invention relates to a disc-type recording / reproducing device, wherein the base unit is assembled in a housing while being sandwiched by the chucking slider.

Screws that pass through the through holes of the base unit and are screwed into the bottom of the housing are inserted into the long holes of the connecting plate of the chucking slider, and the chucking slider slides in the housing. May be supported as possible. Further, the housing may have a dustproof structure.

Further, pins protruding laterally on both sides of the base unit are passed through the cam grooves of the chucking slider so that the tips of the pins are formed into vertical grooves formed on the inner side surface of the housing. A restraining means may be provided for receiving and elastically restraining the ascending / descending operation of the pin along the vertical groove. Further, the suppressing means is composed of an arm rotatably mounted on the inner side surface of the housing near the vertical groove and a spring held by the arm, and is provided on the chucking slider. The rotation of the arm may be restricted by a restriction part that is present, and the spring may press the pin whose tip is received in the vertical groove.

Another main invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium, and a casing has a hermetically sealed structure and is internally The present invention relates to a disk-type recording / reproducing device, which is provided with a blower fan that sends cooling air.

Here, the blower fan may have fins that regulate the direction of the blown air. Further, the blower fan may blow air to the upper portion and the lower portion of the base unit having the head and the rotation driving unit for the disk-shaped recording medium, respectively. The head is composed of an optical pickup,
Moreover, the optical pickup has a laser diode,
The laser diode may be cooled by the blower fan.

Still another main invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium, and the disk-shaped recording medium is set at a recording / reproducing position. A tray that moves between the tray and the pull-out position is slidably attached by a horizontally elongated opening formed in the front panel of the housing, a front lid is provided at the tip of the tray, and a sealing member is provided around the horizontally elongated opening. The present invention relates to a disk-type recording / reproducing apparatus, wherein the front lid and the sealing member are brought into contact with each other when the tray is pulled into the housing to seal the laterally long opening.

Here, a rotatable outer lid is provided so as to cover the front end portion of the tray when the tray is retracted into the housing, and the outer lid and the front lid of the tray are brought into contact with each other. The tray may be provided with blocking guide means.

In assembling a disk type recording / reproducing apparatus using an optical pickup, it is necessary to assemble a base unit consisting of precision equipment, and the portion held at the time of assembly is limited. In addition, it must be handled with care because it is weak against shock and dust. Further, in the case of a dust-proof structure, assemblability generally deteriorates due to various restrictions. A disk type recording / reproducing apparatus according to a preferred embodiment of the present invention included in the present invention includes a base unit made of precision equipment and an ascending / descending drive unit of the base unit. A simple assembly structure is used, in which the connecting plate of the lifting drive unit is slidably attached to the housing using the through holes,
It realizes simplification of the assembling work and easy assembling.

Therefore, in a base unit which is composed of precision equipment and has a limited part to be held at the time of assembling, and the structure is weak against impact and dust, the assembling work is simplified and the assembling is easy. The above-mentioned configuration is adopted to realize the above-mentioned features. Since the assembling work is simplified by such a configuration, the number of assembling steps can be reduced. Further, the easy assembly work can prevent the parts from being broken or damaged due to the handling, and the reliability is improved.

Another embodiment of the invention included in the present application is the operation of an optical pickup for reading and writing information from and to a disk-shaped recording medium and a base unit for holding a motor for rotating the disk with high accuracy. In the spring mechanism that has the function of suppressing rattling, an arm that can be rotated by a limited angle with a built-in spring and a chuck-up mechanism of the base unit that has a cam that drives this arm are provided. I have it.

Therefore, according to this structure, when the disk is driven, in the standby state, or when the base unit is chucked up, the base unit pressing arm is rotated by the restricting portion of the chucking slider. Is regulated, and the pins of the base unit that are moved upwardly deform the spring incorporated in the pressing arm of the base unit to generate a pressing force. Further, at the time of assembly, it becomes possible to rotate the base unit pressing arm so that the spring does not hit the pin.

Another aspect of the invention included in the present application is a hermetically sealed apparatus having a structure in which the temperature inside the housing of a disk type recording / reproducing apparatus cannot be escaped to the outside of the housing by sending and exhausting air. It is designed to prevent the internal temperature distribution from becoming non-uniform.By installing a blower fan inside the device, the uneven internal ambient temperature distribution in the housing is made uniform, and in particular optical It is intended to suppress the temperature rise of parts such as a laser diode which constitutes a laser beam generating part of the pickup.

By attaching fins for restricting the direction of the air flow to the fan mounting base, the direction of the cooling air flow is controlled so that the flow of the air flow does not directly hit the objective lens or the biaxial portion of the optical pickup. Further, one blower fan blows air to the upper part and the lower part of the base unit, respectively, thereby making the non-uniform internal atmospheric temperature in the upper and lower parts of the base unit uniform. Further, the temperature rise is suppressed by directly hitting the laser diode or the like having a large temperature rise with cooling air.

According to this aspect, in the hermetically sealed drive unit having a structure in which the heat generated in the housing cannot be released to the outside by sending and exhausting air, the following effects can be obtained by installing a blower fan in the drive unit. Is played.

First, it is possible to equalize the uneven internal atmosphere temperature in the apparatus. Further, the temperature rise of heat-generating components such as laser diodes is suppressed. Further, from these facts, the temperature rise in the device is suppressed, and the reliability and performance of parts such as the laser diode are improved.

According to another aspect of the invention included in the present application, a front lid is provided at the tip of the tray so that the periphery of the front lid comes into contact with the sealing member when the tray is retracted into the apparatus. . Moreover, the front panel is also preferably provided with an outer lid that is rotatable around the lower edge. Here, in order to prevent the outer lid from catching on the front lid provided on the tray, a catching prevention guide configured to be retractable is provided at the lower part of the tray. This guide is designed to be retracted inside the tray when the tray is completely retracted, so that the front lid of the tray comes into contact with the sealing member over the entire circumference to improve dustproofness. .

By adopting such a structure that the front lid on the front end side of the tray is brought into contact with the seal member, it becomes possible to enhance dustproofness and soundproofness. Further, the double structure of the front lid and the outer lid not only enhances the dustproof property, but also improves the degree of freedom in design.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Description of Configuration Overall Configuration FIGS. 1 and 2 show the overall configuration of a disk type recording / reproducing apparatus according to an embodiment of the present invention. The recording / reproducing apparatus has an outer casing 1 having a flat rectangular parallelepiped shape.
It has 0. The front side opening of the outer casing 10 is closed by the front panel 11. A horizontally long opening 12 is formed in the front panel 11,
Due to the laterally long opening 12, the tray 13 is moved to the position shown in FIGS.
As shown in, it can be inserted freely. The tray 13 slides inside the outer casing 10 while being supported by step portions 18 provided on both sides of the outer casing 10.

The tray 13 has a recessed portion 14 at the center thereof.
Is formed, and the concave portion 14 accommodates and holds the disc-shaped recording medium. Further, an opening 15 extending in the moving direction is formed so as to cross the recess 14. The back side of the opening 15 is formed by a U-shaped cut 16, and the front side is formed by a semicircular cut 17. An optical pickup is allowed to enter these notches 16 and 17, respectively.

A chucking slider 20 is attached to the inside of the outer casing 10 as shown in FIGS. The chucking slider 20 includes a left and right wall portion and an intermediate connecting plate 50.
And a long hole 21 extending in the sliding direction is formed in the connecting plate 50, and the long hole 21 engages with a screw 22 screwed to the outer casing, whereby the long hole 21 extends in the length direction of the tray 13. It is slidably supported.

The chucking slider 20 is formed with a pair of front and rear cam grooves 23, and a rack 24 is formed on one side. This rack 2
4 is for making the tray 13 self-propelled. The emergency carry-out rack 2 is provided below the rack 24 and on the front end side.
5 are provided. The rack 25 is for ejecting the tray 13 by engaging with the emergency drawer pinion when the tray 13 cannot be ejected due to a failure of the drive portion of the tray 13.

Structure of Base Unit 30 Above the chucking slider 20, a base unit 30 is arranged as shown in FIGS. The base unit 30 has a flat container shape, and two pins 31 are provided on both left and right sides thereof. These pins 31 are received in the cam grooves 23 of the wall portions on both sides of the chucking slider 20, and the tip end side portions of the pins 31 are further provided with vertical grooves 32 provided inside the wall portions on both sides of the outer casing 10. (See FIG. 15), whereby the base unit 30 is supported so as to be movable up and down in the height direction, and its height is controlled by the cam groove 23 of the chucking slider 20.

A DVD optical pickup 33 and a DVR optical pickup 34 are arranged on the base unit 30. The DVD optical pickup 33 is guided by a guide rod 35 and a feed screw 36, and when a stepping motor 37 provided at the end of the feed screw 36 is driven, the feed screw 36 causes the DVD optical pickup 33 to move in the radial direction of the disk-shaped recording medium. It is supposed to be moved.

On the other hand, the DVR optical pickup 3
4 is supported by a pair of guide rods 38 and 39, and is driven in the radial direction of the disk-shaped recording medium by driving the feed screw 40 by a stepping motor 41.

Incidentally, the pair of optical pickups 33 and 3 described above.
Reference numeral 4 is located in front of and behind a turntable 43 mounted on the base unit 30 via a bracket 42. That is, the DVD optical pickup 33 is arranged on the pull-out side of the turntable 33,
An optical pickup 34 for DVR is arranged on the insertion direction side of the turntable 43.

The base unit 30 also includes a pair of support pins 44 and support arms 45 on both sides.
As shown in FIGS. 7 to 9, the DVR cartridge 12 is supported by the support pin 44 and the support arm 45.
When the tray 2 is pulled by the tray 13, the cartridge 122 is supported in a state of being floated from the tray 13 by the raising operation of the base unit 30. The bare disk 121 has these support pins 4
4 and the support arm 45, the center portion thereof is supported by the turntable 43 as shown in FIGS.

Assembly Structure of Base Unit 30 Next, the assembly structure of the base unit 30 in such a disc type recording / reproducing apparatus will be described. The base unit 30 is sandwiched by the chucking slider 20 as shown in FIGS. 13 and 14, and is inserted into the outer casing 10 from the upper portion of the outer casing 10 as shown in FIG. There is. That is, the base unit 30 is sandwiched and held by the pair of chucking sliders 20 connected by the connecting plate 50. At this time, the two pins 3 that are respectively planted on both sides of the base unit 30.
1 is inserted in the cam groove 23 of the chucking slider 20.

When the base unit 30 is inserted into the outer casing 10 while being sandwiched by the chucking slider 20 as shown in FIGS. 16 and 17, in this state, as shown in FIGS. King slider 2
The connection plate 50 of 0 is connected to the bottom of the outer casing 10 by the screw 22. The base unit 30 has a flanged screw 22
A through hole 52 that is slightly larger than the outer shape of the.
On the other hand, a cap nut 51 is fixed to the bottom of the outer casing 10 in a molded state. Therefore, the chucking slider 20 holding the base unit 30 slides on the outer casing 10 by penetrating the through hole 52 of the base unit 30 and screwing the screw 22 from above into the cap nut 51 of the outer casing 10 through the elongated hole 21. Mounted as possible.

Suppression Mechanism of Base Unit 30 Next, a structure for suppressing rattling in the height direction during operation of the base unit 30 mounted via the chucking slider 20 in this way will be described with reference to FIGS.
Will be described. An arm 56 is attached inside the side plate of the outer casing 10 and near the vertical groove 32. As shown in FIG. 20, the arm 56 is provided with a mounting shaft 57 and a locking claw 58 on the back surface thereof, so that the arm 56 is rotatably mounted in mounting holes 59 provided on both side plates of the outer casing 10. Moreover, the pin 60 on the back side of the arm 56 is attached to the outer casing 10.
Is received in the concave groove 61 of the side plate of the arm 5
Reference numeral 6 is adapted to rotate by a predetermined rotation angle.

A spring 62 curved in an arc shape is held by the holding portion of the arm 56.
22 is the end portion of FIG.
As shown in, the pin 3 received in the vertical groove 32 of the outer casing 10
I am trying to hold 1 from above. The arm 56 has an abutting surface 63 on the lower side thereof, and the abutting surface 63 is provided on the lower edge of the chucking slider 20.
By contacting with, the rotation is restricted at that position as shown in FIG.

Mechanism for Suppressing Temperature Rise of Laser Diode 73 As shown in FIGS. 23 and 24, a rectangular opening 70 is formed in the rear portion of the base unit 30, and
A blower fan 71 is mounted on the bottom plate of the outer casing 10 so as to project into the base unit 30 through the opening 70. The blower fan 71 is provided with a fin 72 on one side surface thereof, and the fin 72 prevents the cooling air from directly hitting the objective lens 74 of the DVR optical pickup 34, and at the same time, the DVR optical pickup 34.
The cooling air is applied to the portion of the laser diode 73. As a result, as shown in FIG. 25, the temperature of the atmosphere inside the outer casing 10 having a closed structure in which the upper portion is closed by the top plate 78 is made uniform, and the temperature rise of the laser diode 73 inside the outer casing 10 is prevented. I am trying.

Double lid structure on the front side Next, the dustproof structure of the front side portion where the tray 13 is pulled out will be described. As shown in FIGS. 26 and 27, a front lid 82 is attached to the front end side portion of the tray 13 which is movable between the recording / reproducing position and the pulling-out position. The front lid 82 has a ridge 83 on its inner side.
And the projection 83 is provided on the front side of the tray 13 with the locking groove 8
4 is locked.

A guide guide 87 is provided on the bottom of the tray 13.
Can be installed. The guide guide 87 is attached to the attached portion 88, and the guide guide 87 is provided by a compression coil spring 89 interposed between the guide guide 87 and the attached portion 88 of the tray 13.
Are urged to be pushed downward as shown in FIG.

Further, as shown in FIG. 28, a seal member 92 is attached to the peripheral portion of the laterally long opening 12 of the front panel 11 of the outer casing 10. An outer lid 93 is attached to the outside of the front lid 82 of the tray 13 so as to cover the front lid 82. The outer lid 93 is the support shaft 9 on the lower end side.
It is rotatably supported by the portion 4 and is urged to rotate in a closing direction by a spring (not shown).

(2) Operations and Operations Overall Operations Next, the overall operations of the disk type recording / reproducing apparatus having the above-mentioned configuration will be described. As shown in FIG. 2, a switch (not shown) is operated to drive the tray 13 by the drive unit 47 so that the tray 13 can be pulled out from the laterally long opening 12 of the front panel 11 of the outer casing 10, and the inside of the recess 14 of the tray 13 can be pulled out. Mount a bare disk or DVR cartridge on.

By operating a switch (not shown) in such a state, the drive unit 47 mounted on the tray 13 is driven by the motor 48, and thereby the tray 13 is pulled by the pinion and the rack 24 so as to be self-propelled. Let As a result, the tray 13 is housed in the outer casing 10 as shown in FIG.

After this, the drive portion 47 of the tray 13 is subsequently continued.
The chucking slider 20 to the tray 1 using the output of
Then, the base unit 30 is moved up by the cam groove 23 of the chucking slider 20. This allows the base unit 30
The upper turntable 43 moves up to rotate the bare disk or the disk in the cartridge. In the case of a bare disk, the stepping motor 3 shown in FIG.
The DVD optical pickup 33 is moved in the radial direction of the optical disk by the 7 and the feed screw 36 to perform recording and / or reproducing operation. On the other hand, when the DVR cartridge is mounted, recording or reproduction is performed while the DVR optical pickup 34 is moved in the radial direction of the optical disk by the stepping motor 41 and the feed screw 40.

As the base unit 30 moves up, the base unit 30 approaches the tray side. Then, when the DVR cartridge 122 is pulled into the recording / reproducing position by the tray 13, the base unit 3 is raised.
The support pin 44 of 0 and the support arm 45 support the cartridge 122 as shown in FIGS. When the base unit 30 is lifted, the upper ends of the support pins 44 and the support arms 45 move to the tray 13.
Through the opening formed in the concave portion 14 of the cartridge 13 so that the cartridge 122 is supported above the concave portion 14 of the tray 13 in a floating state.
In the case of the bare disk 121, as shown in FIGS. 10 to 12, the center portion is supported by the turntable 43 provided on the ascending base unit 30 and lifted from the recess 14 of the tray 13. It is driven to rotate in this state.

As described above, while using the common turntable 43, the DVD optical pickup 33 and the DVR optical pickup 34 having different formats each have driving means for moving them in the radial direction of the disc, and one of the optical pickups corresponds thereto. When accessing a recording medium of this format, at least the objective lens of the other optical pickup, that is, the head portion is retracted outside the projected area of this recording medium. Therefore, it is possible to avoid interference between the plurality of types of optical pickups 33 and 34 and the recording medium, reduce the number of parts, and eliminate unnecessary space and mechanism in the axial direction of the disc.
It is possible to provide a recording / reproducing device in which the size of the device in the height direction is suppressed.

When the predetermined recording or reproducing operation is completed, the base unit 30 is then lowered by the drive unit 47 of the tray 13 via the chucking slider 20, and then the tray 13 is automatically driven by the output of the drive unit 47. Run and pull out the tray 13 as shown in FIG. Then, the bare disk or the cartridge is taken out from the recess 14 of the tray 13.

Assembling operation of the base unit 30: The base unit 30 having a DVD optical pickup 33, a DVR optical pickup 34, and a turntable 43 which constitutes a rotation driving unit for a disc-shaped recording medium.
Is composed of precision equipment, and due to mechanical restrictions, the part to be held during assembly is limited. In addition, it must be handled with care because it is weak against shock and dust.

Therefore, in this disk type recording / reproducing apparatus, as shown in FIGS. 13 and 14, the base unit 30 and the chucking sliders 20 on both sides are connected.
That is, two pins 31 provided on each side of the base unit 30 are inserted through the cam grooves 23 of the chucking slider 20, and the chucking sliders 20 on both sides are connected by the connecting plate 50. As a result, the base unit 30 is assembled in a state where it is sandwiched by the chucking sliders 20 on both sides as shown in FIGS. 13 and 14.

Next, as shown in FIGS. 15 and 16, the base unit 30 in which the chucking sliders 20 are assembled on both sides is assembled in the outer casing 10 while holding the front end portion 53 and the rear end portion 54 thereof. . At this time, the pins 31 on both sides of the base unit 30 are inserted into the vertical grooves 32 formed on the side walls on both sides of the outer casing 10 and gently lowered from the upper side to the lower side. At this time, the base unit 3
Since the finger having the rear end portion 0 of 0 is received in the recessed portion 55 (see FIG. 16) formed on the rear side of the rear wall portion of the outer casing 10, a smooth insertion operation is possible.

As shown in FIGS. 15 and 16, the outer casing 10
After the base unit 30 is mounted therein, a connecting plate 50 connecting the chucking sliders 20 on both sides with screws 22 is attached to the bottom of the outer casing 10 after this, as shown in FIGS. 18 and 19. Base unit 30
Since the through holes 52 are formed at the positions where the screws 22 are inserted, the screws 22 are inserted through the long holes 21 of the connecting plate 50 through the through holes 52 and further embedded on the bottom surface of the outer casing 10 on the outer side. The cap nut 51 is screwed on. Then, as shown in FIG. 19, the connecting plate 50 has the long hole 2
1 is slidably coupled to the bottom of the outer casing 10.

Therefore, this operation is performed by simply screwing the screw 22 from above with the base unit 30 incorporated in the outer casing 10 as shown in FIGS. Therefore, the assembling work can be simplified and easy assembling can be realized. Further, since the assembling work is easy, it is possible to prevent the parts on the base unit 30 from being broken or damaged, which improves the reliability of the disk type recording / reproducing apparatus.

Rattling prevention operation of the base unit 30 As described above, the disk type recording / reproducing apparatus of the present embodiment is
Optical pickups 3 of different formats are provided before and after the turntable 43 that constitutes the rotating portion of the disc.
The base unit 30 provided with 3, 34 is provided. The base unit 30 has two pins 31 provided on each of the left and right sides and penetrates into the cam groove 23 of the chucking slider 20, and the chucking slider 20 is moved back and forth to perform a lifting operation. The rattling of the base unit 30 in the vertical direction is caused by the spring 31 of the arm 56 shown in FIG.
Achieved by pressing. Here, the arm 56 holds the rotational position shown in FIG. 21 during assembly, so that the pin 31 of the base unit 30 is dropped into the vertical groove 32 of the outer casing 10.

More specifically, the base unit 3
In No. 0, the DVD optical pickup 33 and the DVR optical pickup 34 are arranged in front of and behind the disc rotating portion 43. In order to move the base unit 30 up and down horizontally, two pins are provided on each side of the base unit 30 so that a total of four pins 31 project laterally. Then, the left and right pins 31 of the base unit are inserted into the cam grooves 23 of the chucking slider 20 so that when the chucking slider 20 moves back and forth, the base unit 30 moves up and down while maintaining a horizontal posture. There is. When assembling the base unit 30 into the outer casing 10, the chucking slider 20 is provided with a cam 64 that causes the spring 62 of the arm 56 to act when the base unit 30 rises so that the base unit 30 avoids the spring 62 of the arm 56. ing.

As shown in FIG. 20, the arm 56 has a rod spring 62 incorporated therein, and is provided with a mounting shaft 57 which is inserted into a mounting hole 59 of the outer casing 10 and a boss-shaped pin 60 which limits a rotation angle. ing. The mounting shaft 57 is the outer casing 1.
The locking claws 58 are engaged with the edge portions of the mounting holes 59 and are temporarily fixed in a state of being inserted into the mounting holes 59 formed on the side surfaces on both sides of 0. Outer casing 1
Reference numeral 0 constitutes a housing of this drive device, which has a guide function for the chucking slider 20 and the base unit 30, and further has a mounting hole 59 for receiving the mounting shaft 57 of the arm 56 and a pin 60 for receiving. It has a concave groove 61 for limiting the rotation angle of the arm 56.

As shown in FIGS. 15 and 16, a base unit 30 having chucking sliders 20 connected to both sides is used.
21, the protrusion 64 of the chucking slider 20 does not come into contact with the contact surface 63 of the arm 56 when the is assembled into the outer casing 10. Therefore, the arm 56 is rotated to a position where its spring 62 does not interfere with the pin 31. This enables a smooth insertion operation of the base unit 30 into the outer casing 10.

On the other hand, when the disk-shaped recording medium is rotating, in the standby state, or when the base unit 30 is moving upward, the protrusions 64 of the chucking slider 20 cause the arm 56 to move. The contact surface 63 contacts the protrusion 64 of the chucking slider 20, whereby the arm 56 is restricted at the rotation angle shown in FIG. Then, the pin 31 of the base unit 30 lifted up by the cam groove 23 of the chucking slider 20 presses the tip end of the spring 62 incorporated in the arm 56 while deforming the pin 31.
The vertical play of 0 is prevented.

Therefore, the bare disk 121 or DVR
A spring attached to the arm 56 to prevent rattling at the time of operation of the base unit 31 that holds the optical pickups 33 and 34 for reading or writing information with respect to the recording cartridge 122 and the rotation drive unit 43 for rotating the optical disc with high accuracy. This can be suppressed by 62, and the accuracy of the information read or write operation can be guaranteed.

Cooling Operation in Enclosure Enclosure The disk type recording / reproducing apparatus of the present embodiment employs an airtight structure, and when the bare disk 121 or the DVR cartridge 122 is pulled in by the tray 13, The inside of the recording / reproducing apparatus does not communicate with the outside and maintains a sealed structure. And the outer casing 10
The blower fan 71 provided at the bottom of the housing is projected upward through the opening 70 of the base unit 30 to cool the inside of the housing.

The air blown from the cooling fan 71 directly hits the laser diode 73 of the DVR optical pickup 34, which has a large temperature rise, thereby suppressing the temperature rise of the laser diode 73. In addition, fins 72 are provided on the side of the blower fan 71 so that the flow of the blower is DV.
The wind direction is regulated so as not to directly hit the objective lens 74 and the biaxial portion of the R optical pickup 34.

As shown in FIG. 24, a single blower fan 71
By blowing air to the upper portion and the lower portion of the base unit 30 respectively, the internal atmospheric temperature divided into upper and lower parts with respect to the base unit 30 of this apparatus is made uniform. Further, the blower fan 71 makes the uneven internal atmosphere temperature of the device uniform and suppresses the temperature rise of the parts such as the laser diode 73.

Therefore, according to such a cooling structure, not only the ambient temperature inside the entire apparatus can be made substantially uniform, but also the heat-generating components such as the laser diode 73 are prevented from rising in temperature, and the laser temperature is reduced. Diode 7
The reliability of 3 can be maintained. Note that, in FIG. 17, the direction of the wind indicated by the arrow 75 indicates the overall flow of the wind inside the housing.

Dust-proofing due to the closed structure of the drawer portion of the tray 13, as shown in FIG. 25, when the tray 13 is drawn in, this disk type recording / reproducing apparatus has a closed structure in which air communication with the outside is cut off. I am trying. In particular, FIG.
As shown in FIG. 5, a front lid 82 is attached to the front end side of the tray 13, whereby the tray 13 has a lateral T-shape when viewed from the side, and a seal of the laterally long opening 12 with which the back surface of the front lid 82 contacts. The member 92 is attached to the structure so as to enhance the dustproof property. Further, an outer lid 93 is provided so as to be located outside the front lid 82 to improve the design. The outer lid 93 is centered around the support shaft 94 on the lower end side thereof, as shown in FIG.
It has a structure that opens with a pattern as shown in. A guide guide 87 is provided at the bottom of the tray 13 so that the front lid 82 and the outer lid 93 of the tray 13 are not caught.

When the tray 13 is pulled out as shown in FIG. 27, it is pushed by the front end portion of the tray 13 and the outer door 9 is pulled out.
3 is opened so as to rotate clockwise around the support shaft 94, and the tray 13 comes out from the laterally long opening 12. Here, the guide guide 87 provided in the lower portion of the tray 13 has its tip end portion projected below the tray 13 due to the incorporated compression coil spring 89.

When the tray 13 is pulled inward through the horizontally long opening 12, the spring force of the guide guide 87 causes the outer lid 9 to move.
Since it is larger than the force to close 3, the tip portion of the outer lid 93 is pushed by the guide guide 87 to get over the front lid 82 of the tray 13. When the tray 13 is completely retracted, the guide guide 87 is pushed into the inside of the tray against the compression coil spring 89 as shown in FIG. It becomes possible to improve the dustproof property by sandwiching the seal member 92. Then, the outer lid 93 is closed on the outer side of the outer lid 93 to provide high designability.

Therefore, according to such a structure, the tray 1
The front lid 82 of No. 3 comes into contact with the seal member at the peripheral portion of the laterally long opening 12, and when the tray 13 is pulled in, high dustproofness and soundproofing can be exhibited. Also, the front lid 82 and the outer lid 9
By adopting the double lid structure of No. 3, not only the dustproof property can be enhanced, but also the degree of freedom in design can be improved.

Although the present invention has been described with reference to the illustrated embodiments, the invention included in the present application is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the invention included in the present application. Is possible. For example, in the above embodiment, the optical disc and the pair of optical pickups 3 are used.
Although the present invention is not limited to such a configuration, the present invention is not limited to such a configuration, and recording on a magneto-optical disk, a magnetic disk, an electrostatic capacity disk, or the like. The present invention can be widely applied to a device including a combination of a medium and a head device that performs recording and / or reproducing on the recording medium.

[0068]

The main invention of the present application is, in a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium, a rotation for rotationally driving the head and the disk-shaped recording medium. The base unit has a drive unit, and chucking sliders arranged on both sides of the base unit so as to support the base unit so that the base unit can be moved up and down and connected to each other by connecting plates. It is designed to be incorporated in the housing in a state of being sandwiched.

Therefore, according to such a disk type recording / reproducing apparatus, the assembling work can be simplified and the assembling man-hour can be reduced. Further, since the assembling work is facilitated, it is possible to prevent the parts from being broken or damaged, and the reliability is improved. In particular, such an assembly is suitable for a device having a housing having a dustproof structure or a sealed structure.

Another main invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium, and a housing has a hermetically sealed structure and is internally sealed. It is provided with a blower fan that sends cooling air.

Therefore, according to such a disk type recording / reproducing apparatus, it is possible to send the cooling air to the inside by the air blowing fan, and a disk type recording / reproducing apparatus having an excellent cooling property is provided.

Still another invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating the disk-shaped recording medium, and the disk-shaped recording medium is provided with a recording / reproducing position and a withdrawing position. The tray that moves between the two is slidably attached by the horizontally long opening formed in the front panel of the housing, the front lid is provided at the tip of the tray, and the sealing member is provided around the horizontally long opening. When it is pulled in, the front lid and the sealing member come into contact with each other so that the horizontally long opening is sealed.

Therefore, according to such a disc type recording / reproducing apparatus, when the tray for moving the disc-shaped recording medium between the recording / reproducing position and the pulling-out position is moved to the recording / reproducing position, the horizontally long opening is in front of the tray. A disk-type recording / reproducing device which is completely closed by a lid and has high dust resistance is provided.

[Brief description of drawings]

FIG. 1 is an external perspective view showing the overall configuration of a disc-type recording / reproducing apparatus.

FIG. 2 is an external perspective view of the apparatus with the tray pulled out.

FIG. 3 is an external perspective view showing a state where the upper part of the outer casing is opened.

FIG. 4 is an external perspective view of a chucking slider.

FIG. 5 is a plan view of an outer casing incorporating a base unit.

FIG. 6 is an external perspective view of a base unit.

FIG. 7 is a plan view of a base unit in which a DVR cartridge is mounted.

FIG. 8 is a side view of the same.

FIG. 9 is a perspective view of the same appearance.

FIG. 10 is a plan view of a base unit on which a bare disk is mounted.

FIG. 11 is a side view of the same.

FIG. 12 is a perspective view of the same appearance.

FIG. 13 is an external perspective view of a base unit in which a chucking slider is assembled.

FIG. 14 is a perspective view showing the opposite state.

FIG. 15 is an external perspective view showing an assembling operation of the base unit with respect to the outer casing.

FIG. 16 is a perspective view showing a state where the base unit is incorporated in the outer casing.

FIG. 17 is a plan view of the relevant part.

FIG. 18 is a perspective view of relevant parts showing attachment of the base unit to the outer casing.

FIG. 19 is an enlarged sectional view of the relevant part.

FIG. 20 is an external perspective view of an arm.

FIG. 21 is a front view of the arm when the base unit is assembled.

FIG. 22 is a front view of the arm when the base unit is raised.

FIG. 23 is a perspective view of a main part showing the arrangement of cooling fans.

FIG. 24 is a perspective view of relevant parts showing the operation of cooling the inside of the housing by the cooling fan.

FIG. 25 is an external perspective view of a housing having a closed structure.

FIG. 26 is a perspective view of relevant parts showing the attachment of the front lid to the tray.

FIG. 27 is a longitudinal cross-sectional view of a main part showing the rotating operation of the outer lid when the tray is pulled out.

FIG. 28 is a longitudinal sectional view of an essential part showing the dustproof structure in a state where the tray is pulled in.

[Explanation of symbols]

10 ... Outer casing, 11 ... Front panel, 12 ... Horizontal opening, 13 ... Tray, 14 ... Recess, 15 ... Opening,
16 ... U-shaped notch, 17 ... Semi-circular notch, 18
Steps, 20 Chucking sliders, 21 long holes, 22 screws, 23 cam slots, 24 racks
25 ... Emergency discharge rack, 30 ... Base unit,
31 ... pin, 32 ... vertical groove, 33 ... DVD optical pickup, 34 ... DVR optical pickup, 35
Guide rod, 36 Feed screw, 37 Stepping motor, 38, 39 Guide rod, 40
Feed screw, 41 stepping motor, 42 bracket, 43 turntable, 44 support pin, 45 support arm, 50 connection plate, 51
Cap nut, 52, through hole, 53, front end, 54
Rear end, 55, concave, 56, arm, 57, mounting shaft, 58, locking claw, 59, mounting hole, 60
Pins, 61 ... concave groove, 62 ... spring, 63 ... contact surface,
64 ... ridge, 70 ... opening, 71 ... blower fan, 7
2 ... Fins, 73 ... Laser diode, 74 ... Objective lens, 75 ... Arrow (wind flow), 78 ... Top plate,
82 ... front lid, 83 ... ridge, 84 ... locking groove, 87
Guide guide, 88 ... Attached part, 89 ... Compression coil spring, 92 ... Seal member, 93 ... Outer lid, 94 ...
Spindle, 121 ... Bare disk, 122 ... DVR cartridge

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 12, 2001 (2001.11.
12)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 13

[Correction method] Change

[Correction content]

[Fig. 13]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 14

[Correction method] Change

[Correction content]

FIG. 14

[Procedure 3]

[Document name to be corrected] Drawing

[Correction target item name] Figure 15

[Correction method] Change

[Correction content]

FIG. 15

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 16

[Correction method] Change

[Correction content]

FIG. 16

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 17

[Correction method] Change

[Correction content]

FIG. 17

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 18

[Correction method] Change

[Correction content]

FIG. 18

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

FIG. 19

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 20

[Correction method] Change

[Correction content]

FIG. 20

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 21

[Correction method] Change

[Correction content]

FIG. 21

[Procedure Amendment 10]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 22

[Correction method] Change

[Correction content]

FIG. 22

[Procedure Amendment 11]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 23

[Correction method] Change

[Correction content]

FIG. 23

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 24

[Correction method] Change

[Correction content]

FIG. 24

[Procedure Amendment 13]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 25

[Correction method] Change

[Correction content]

FIG. 25

[Procedure Amendment 14]

[Document name to be corrected] Drawing

[Correction target item name]

[Correction method] Change

[Correction content]

FIG. 26

[Procedure Amendment 15]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 27

[Correction method] Change

[Correction content]

FIG. 27

[Procedure Amendment 16]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 28

[Correction method] Change

[Correction content]

FIG. 28

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Manabu Obata             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation (72) Inventor Mitsunori Matsumura             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation (72) Inventor Hideaki Tsutsumi             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation (72) Inventor Yusuke Hirano             Soni, 2-17-1, Higashigotanda, Shinagawa-ku, Tokyo             -In EMCS Co., Ltd. (72) Inventor Ippei Suzuki             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation (72) Inventor Akira Yoshino             Soni, 2-17-1, Higashigotanda, Shinagawa-ku, Tokyo             -In EMCS Co., Ltd. (72) Inventor Morihiro Murata             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation

Claims (11)

[Claims] 1. A disk-type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating the disk-shaped recording medium, and a base having a rotary drive unit for rotationally driving the head and the disk-shaped recording medium. A unit, and chucking sliders arranged on both sides of the base unit so as to support the base unit so that the base unit can be moved up and down, and the chucking sliders are connected to each other by connecting plates, and the base unit is sandwiched between the chucking sliders. A disc-type recording / reproducing apparatus, characterized in that the disc-type recording / reproducing apparatus is incorporated in a housing in a worn state. 2. A screw which penetrates a through hole of the base unit and is screwed into a bottom portion of the housing is inserted into a long hole of a connecting plate of the chucking slider, and the chucking slider slides in the housing. The disk type recording / reproducing apparatus according to claim 1, wherein the disk type recording / reproducing apparatus is supported so as to be capable of being supported. 3. The disk type recording / reproducing apparatus according to claim 1, wherein the housing has a dustproof structure. 4. A vertical groove formed by laterally projecting pins on both sides of the base unit through a cam groove of the chucking slider so that a tip end portion of the pin is formed on an inner side surface of the housing. The disc-type recording / reproducing apparatus according to claim 1, further comprising: a suppressing unit that elastically suppresses an ascending / descending operation of the pin along the vertical groove. 5. The chucking slider, wherein the suppressing means comprises an arm rotatably mounted on the inner side surface of the housing near the vertical groove, and a spring held by the arm. 5. The disk type recording / reproducing according to claim 4, wherein the rotation of the arm is restricted by a restricting part provided on the disk, and the spring presses a pin whose tip is received in the vertical groove. apparatus. 6. A disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating a disk-shaped recording medium, wherein a housing has a hermetically sealed structure, and a blower fan for sending cooling air to the inside is provided. A disc-type recording / reproducing device characterized by being provided. 7. The disk-type recording / reproducing apparatus according to claim 6, wherein the blower fan has a fin that regulates the direction of the blown air. 8. The disk-type recording / reproducing apparatus according to claim 6, wherein the blower fan blows air to the upper portion and the lower portion of a base unit having a rotation driving unit for the head and the disc-shaped recording medium, respectively. . 9. The disk-type recording according to claim 6, wherein the head comprises an optical pickup, and the optical pickup has a laser diode, and the laser diode is cooled by the blower fan. Playback device. 10. A disk-type recording / reproducing apparatus in which recording and / or reproduction is performed by a head while rotating the disk-shaped recording medium, wherein the disk-shaped recording medium is moved between a recording / reproducing position and a pulling-out position. The tray is slidably attached by a horizontally elongated opening formed in the front panel of the housing, a front lid is provided at the tip of the tray, and a seal member is provided around the horizontally elongated opening so that the tray is drawn into the housing. The disc-type recording / reproducing apparatus, wherein the front lid and the sealing member are brought into contact with each other to seal the laterally long opening. 11. A rotatable outer lid is provided so as to cover a front end portion of the tray in a state where the tray is pulled into the housing, and the outer lid and the front lid of the tray are brought into contact with each other. 11. The disk type recording / reproducing apparatus according to claim 10, wherein guide means for blocking is provided on the tray.