JP4813303B2 - Slot-in type disk unit - Google Patents

Description

  The present invention relates to a disk device that performs recording or reproduction on a disk-shaped recording medium such as a CD or DVD, and more particularly to a slot-in type disk device that can directly insert or eject a disk from the outside.

Conventional disk devices often employ a loading method in which a disk is placed on a tray or turntable, and the tray or turntable is mounted in the device body. In such a loading method, the tray or turntable is used. There was a limit to making the disk drive body thinner as much as a table was required. Therefore, recently, there is a slot-in type disk device in which a disk is directly operated by a lever or the like by a loading motor (for example, Patent Document 1).
JP 2002-352498 A

  However, even in a slot-in type disk device that directly operates the disk with a lever, etc., in order to further reduce the thickness of the device, it is necessary to prevent the disk from coming into contact with the pickup objective lens when the disk is inserted or ejected. You have to guide the disc into.

  Therefore, the present invention provides a slot-in type disk apparatus that can further reduce the thickness of the apparatus by preventing the contact with the objective lens by accurately guiding the moving position of the disk when the disk is inserted and ejected. For the purpose.

According to a first aspect of the present invention, there is provided a slot-in type disk device comprising a base body and a lid, and forming a chassis exterior, and forming a disk insertion slot for directly inserting a disk on a front surface of the chassis exterior. A traverse base is disposed on the front surface side of the main body, and a pickup held by the traverse base is disposed on the outer peripheral side of the base body during standby. The traverse base is provided with a traverse base cover, and the traverse base cover on the outer peripheral side upper surface of the protective cover is provided, the protective cover, wherein at the time of mounting the disk to the traverse base onto arranged at a position not overlapping with the disc, to displace the protective cover on the cover side displacement means are provided, said displacement means, said traverse base of operation and phosphorus Slot-loading disc device which is characterized in that the slider is moved.
According to a second aspect of the present invention, in the slot-in type disk device according to the first aspect, the displacement means is a pressurizing spring provided between the traverse base cover and the protective cover. To do.
According to a third aspect of the present invention, in the slot-in type disk device according to the first aspect, the displacement means is an elastic deformation of the protective cover itself.

  According to the present invention, contact with the pickup can be prevented by displacing the protective cover toward the lid. In addition, by using a pressurizing spring provided between the traverse base cover and the protective cover as the displacement means, the disc can be regulated to the lid side by the protective cover when the disc is inserted. In addition to preventing contact, the protective cover is urged toward the lid after the disc is loaded, so that the pickup can be prevented from touching the protective cover, and when the disc is rotated, wind generated by the rotation of the disc can be prevented. Can be cooled by efficiently sending to the pickup.

The slot-in type disk device according to the first embodiment of the present invention comprises a base body and a lid body to form a chassis exterior, and a disk insertion slot for directly inserting a disk is formed on the front surface of the chassis exterior. A traverse base is disposed on the front surface side of the vehicle, and a pickup held on the traverse base is disposed on the outer peripheral side of the base body during standby. The traverse base is provided with a traverse base cover, and an upper surface on the outer peripheral side of the traverse base cover the protective cover is provided, a protective cover, at the time of loading of the disk onto the traverse base is disposed at a position not overlapping the disk, the displacement means for displacing a protective cover on the lid side is provided, the displacement means, the traverse It is a slider that moves in linkage with the movement of the base . According to the present embodiment, the contact with the pickup can be prevented by displacing the protective cover toward the lid. In addition, since the protective cover is urged toward the lid after the disc is installed, the pickup can be prevented from touching the protective cover, and the wind generated by the rotation of the disc can be efficiently sent to the pickup when the disc rotates. Can be cooled.
The second embodiment of the present invention is a slot-in type disk device according to the first embodiment, wherein the displacement means is a pressurizing spring provided between the traverse base cover and the protective cover. According to the present embodiment, when the disc is inserted, the disc can be regulated to the lid side by the protective cover, so that the contact of the disc with the pickup can be prevented, and the protective cover is closed after the disc is loaded. Since it is biased toward the body side, it is possible to prevent the pickup from contacting the protective cover, and at the time of rotation of the disk, cooling can be performed by efficiently sending the wind generated by the rotation of the disk to the pickup.
The third embodiment of the present invention is such that in the slot-in type disk device according to the first embodiment, the displacement means is an elastic deformation of the protective cover itself. According to the present embodiment, when the disc is inserted, the disc can be regulated to the lid side by the protective cover, so that the contact of the disc with the pickup can be prevented, and the protective cover is closed after the disc is loaded. Since it is biased toward the body side, it is possible to prevent the pickup from contacting the protective cover, and at the time of rotation of the disk, cooling can be performed by efficiently sending the wind generated by the rotation of the disk to the pickup.

A disk device according to an embodiment of the present invention will be described below.
FIG. 1 is a plan view of a base body of a disk apparatus according to the present embodiment, FIG. 2 is a sectional side view showing a main part before a disk is inserted, and FIG.
In the disk apparatus according to the present embodiment, a chassis exterior is constituted by a base body and a lid, and a bezel is attached to the front surface of the chassis exterior. The disk device according to this embodiment is a slot-in type disk device in which a disk is directly inserted from a disk insertion opening provided in a bezel.
As shown in FIG. 1, each component that performs a disc recording / reproducing function and a disc loading function is mounted on a base body 10.
The base body 10 has a deep bottom portion 10A and a shallow bottom portion 10B, and a wing portion extending from the front surface to the rear surface is formed by the shallow bottom portion 10B.
A disk insertion slot 11 into which a disk is directly inserted is formed on the front side of the base body 10, and a connector 12 is disposed at the end of the rear surface of the base body 10. A traverse base 30 is disposed on the disc insertion slot 11 side of the base body 10, and a rear base 13 is disposed on the connector 12 side of the base body 10. The traverse base 30 and the rear base 13 are arranged so as not to overlap each other. A printed circuit board 14 is provided on the base body 10 surface side of the rear base 13.

The traverse base 30 holds a spindle motor 31, a pickup 32, and drive means 33 that moves the pickup 32. The spindle motor 31 is provided on one end side of the traverse base 30, and the pickup 32 is provided so as to be movable from one end side to the other end side of the traverse base 30. Further, the pickup 32 is disposed on the other end side of the traverse base 30, that is, on the outer peripheral side of the base body 10 during standby.
In the traverse base 30, the spindle motor 31 is located at the center of the base body 10, the reciprocating range of the pickup 32 is located closer to the disc insertion opening 11 than the spindle motor 31, and the reciprocating direction of the pickup 32 is the disc reciprocating direction. It is arrange | positioned so that it may differ from the insertion direction. Here, the reciprocating direction of the pickup 32 and the disc insertion direction are set to an angle of 40 to 45 degrees.
The traverse base 30 is supported on the base body 10 by a pair of insulators 34A and 34B. Further, a traverse base cover 30 </ b> A is provided on the lid side of the traverse base 30. And the protective cover 30B is provided in the outer peripheral side upper surface of 30 A of traverse base covers.

The pickup 32 is provided with an objective lens 32A and an ACT cover 32B that covers the actuator.
Here, the protective cover 30B extends also above the ACT cover 32B, and is disposed closer to the disc insertion opening than the position of the objective lens 32A. Further, at least the upper surface of the protective cover 30B is made of a felt material or is coated with a urethane fluorine coating. As a coating material, urethane beads in which a urethane resin with a bead diameter of 20 microns is blended with fluorine having a blending ratio of 5% with respect to the urethane resin and silicon having a blending ratio with respect to the urethane resin of 1.0 to 1.5%. A blended fluorine-based coating may be applied. The friction coefficient of the coating material is preferably 0.2 to 0.6, and more preferably 0.55 or less.
By providing the protective cover 30B above the ACT cover 32B and closer to the disc insertion port than the position of the objective lens 32A, it is possible to prevent the disc and the pickup 32 from interfering when the disc is inserted.
In particular, since the protective cover 30B on the ACT cover 32B has a high height in the apparatus, there is a possibility that the disk is rubbed and damaged when the disk is inserted. Therefore, it is preferable to apply felt or coating so as not to damage the disk.
The protective cover 30B is disposed at a position that does not overlap the disk when the disk is loaded. Further, the protective cover 30B is provided with a protective cover shaft 30C on the front side and a pressurizing spring (displacement means) 30D on the rear side. The pressurizing spring 30D is provided on the traverse base cover 30A side of the protective cover 30B, and always urges the protective cover 30B toward the lid side.

  The pair of insulators 34 </ b> A and 34 </ b> B is disposed closer to the stationary position of the pickup 32 than the position of the spindle motor 31. In this embodiment, the insulator 34 </ b> A is provided at one end near the inside of the disk insertion slot 11, and the insulator 34 </ b> B is provided at the center near the inside of the disk insertion slot 11. The insulators 34A and 34B are provided with a damper mechanism made of an elastic material. The traverse base 30 operates so that the spindle motor 31 side approaches and separates from the base body 10 with the insulators 34A and 34B as fulcrums.

Below, the main slider 40 and the sub slider 50 provided with the cam mechanism will be described. Cam mechanisms for displacing the traverse base 30 are provided in the main slider 40 and the sub-slider 50, respectively. Here, the main slider 40 and the sub-slider 50 are arranged so as to be located on the side of the spindle motor 31. One end of the main slider 40 is disposed on the front surface side of the chassis body 10 and the other end is disposed on the rear surface side of the chassis body 10. Further, the sub-slider 50 is disposed between the traverse base 30 and the rear base 13 in a direction orthogonal to the main slider 40.
A cam mechanism for displacing the traverse base 30 includes a first cam mechanism 41 and a second cam mechanism 51. The first cam mechanism 41 is provided on the surface of the main slider 40 on the spindle motor 31 side, and the second cam mechanism 51 is provided on the surface of the sub slider 50 on the spindle motor 31 side.
A base member 15 is provided between the main slider 40 and the traverse base 30, and a base member 16 is provided between the sub-slider 50 and the traverse base 30. Here, the base member 15 and the base member 16 are fixed to the base body 10, and the position of the cam pin of the traverse base 30 is restricted by the vertical groove provided in the base member 15, and the cam pin of the traverse base 30 is provided by the vertical groove provided in the base member 16. The position is regulated.

  Here, the base member 16 and the sub-slider 50 are connected by a third cam mechanism (not shown). The third cam mechanism moves the sub-slider 50 in the direction away from the base body 10 when the second cam mechanism 51 moves the traverse base 30 away from the base body 10. It has a function.

A loading motor 60 is disposed on one end side of the main slider 40. The driving shaft of the loading motor 60 and one end side of the main slider 40 are connected via a gear mechanism.
The main slider 40 can be slid in the longitudinal direction by driving the loading motor 60. The main slider 40 is connected to the sub slider 50 by a cam lever 70.
The cam lever 70 has a rotation fulcrum 71, a pin 72, a pin 73, and a pin 74. The pins 72 and 73 engage with a cam groove provided on the upper surface of the main slider 40, the pin 74 engages with a cam groove provided on the upper surface of the sub-slider 50, and the cam lever 70 rotates about the rotation fulcrum 71 as an axis. Move.

  The connector 12, the traverse base 30, the rear base 13, the printed circuit board 14, the insulators 34A and 34B, the main slider 40, the sub slider 50, and the loading motor 60 described above are provided on the deep bottom portion 10A of the base body 10, and A disc insertion space is formed between the member and the lid.

Next, a guide member that supports the disk when the disk is inserted and a lever member that operates when the disk is inserted will be described.
A first disc guide 17 having a predetermined length is provided on one end of the deep bottom portion 10A near the disc insertion slot 11. The first disk guide 17 has a groove with a “U” shape as viewed from the disk insertion side. The disk is supported by this groove.
On the other hand, a pull-in lever 80 is provided at the shallow bottom portion 10B on the disk insertion slot 11 side, and a second disk guide 81 is provided at the movable side end of the pull-in lever 80. The second disk guide 81 is configured by a cylindrical roller, and is rotatably provided at the movable side end of the pull-in lever 80. A groove is formed on the outer periphery of the roller of the second disk guide 81, and the disk is supported by the groove.
The pull-in lever 80 is arranged so that the movable side end portion operates on the disc insertion port 11 side relative to the fixed side end portion, and has a rotation fulcrum at the fixed side end portion.

The pull-in lever 80 is operated by the sub lever 90.
The sub lever 90 includes a convex portion at one end on the movable side, and a rotation fulcrum 92 on the other end side. The convex portion of the sub lever 90 slides in the long groove of the pulling lever 80. Further, the rotation fulcrum 92 of the sub lever 90 is located on the main slider 40. The rotation fulcrum 92 is not linked to the main slider 40 and is fixed to the base body 10. Further, a pin 93 is provided on the lower surface of the sub-lever 90 on the convex portion side of the rotation fulcrum 92. The pin 93 slides in a cam groove provided on the upper surface of the main slider 40. Accordingly, the angle of the sub lever 90 is changed with the movement of the main slider 40, and the turning angle of the pull-in lever 80 is changed by changing the angle of the sub lever 90. That is, the operation of the sub lever 90 causes the second disk guide 81 of the pull-in lever 80 to move closer to and away from the spindle motor 31.
A front guider 21 is provided on the front side of the base body 10. The front guider 21 is disposed at one end of the disc insertion slot 11 and between the pull-in lever 80 and the disc insertion slot 11. The front guider 21 is provided closer to the lid than these members so as to cover a part of the loading motor 60, the gear mechanism, and the main slider 40.

The operation of the cam lever 70 will be described below.
The cam lever 70 does not rotate while the pin 73 is engaged with the cam groove of the main slider 40. This state is a standby state. Even after the disc is loaded, this state is maintained for a while, and the traverse base 30 is in a state of being close to the base body 10.
When the center of the disk is located above the spindle motor 31, the pin 73 is disengaged from the cam groove of the main slider 40, and the cam lever 70 starts to rotate.
The main slider 40 has a groove in which the pin 72 of the cam lever 70 slides, and moves the first cam mechanism 41 in the same direction as the main slider 40 by the operation of the cam lever 70. The sub slider 50 is moved by the rotation of the cam lever 70, and the second cam mechanism 51 is operated by moving the sub slider 50.
That is, as the cam lever 70 rotates, the first cam mechanism 41 and the second cam mechanism 51 move by a predetermined distance, and the traverse base 30 is displaced.
When the chucking operation is finished, the rotation of the cam lever 70 is finished.

Next, the function of the protective cover 30B will be described.
In the state before the disc is inserted, as shown in FIG. 2, the protective cover 30B is urged toward the lid by the pressurizing spring 30D.
In this state, when the disc is inserted from the disc insertion slot 11, the protective cover 30B is pushed toward the base body 10 by the disc, but the disc is pushed toward the lid by the protective cover 30B. Accordingly, it is possible to prevent the disc from coming into contact with the pickup 32.
When the disk is pulled to a predetermined position, the protective cover 30B is again urged toward the lid by the pressurizing spring 30D. The protective cover 30B is held at the same position even when the disk is rotated. Therefore, at the time of recording and reproduction of the disk device, even if the pickup 32 moves to the outer peripheral position, the pickup 32 does not contact the protective cover 30B. Further, at the time of recording and reproduction of the disk device, the pickup 32 can be cooled by efficiently sending the wind generated by the rotation of the disk to the pickup 32.
In the present embodiment, the pressurizing spring 30D is provided as the displacement means on the traverse base cover 30A side of the protective cover 30B. However, the elastic deformation of the protective cover 30B itself is performed without using the pressurizing spring 30D. Therefore, the rear side of the protective cover 30B may always be urged toward the lid.

4 to 7 show a disk device according to another embodiment, FIG. 4 is a plan view of a base body showing a state before the disk is inserted in the disk device, FIG. 5 is a side sectional view of the main part in the same state, FIG. FIG. 7 is a plan view of the base main body showing the disk mounted state of the disk device, and FIG. The same members as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted.
In this embodiment, a slider 55 is used as a displacement means. The slider 55 is connected to the main slider 40 via the link lever 56. As shown in FIG. 4, the slider 55 is arranged on the rear side in the standby state, and moves so as to be arranged on the front side when the disc is loaded.
On the other hand, also in the present embodiment, the protective cover 30B is disposed at a position that does not overlap the disk when the disk is mounted. Further, the protective cover 30B is provided with a protective cover shaft 30C on the front side and a lever portion 30E on the rear side. The lever portion 30E is provided on the traverse base cover 30A side of the protective cover 30B, and when the slider 55 moves to the front side, the protective cover 30B is displaced to the lid side by the slider 55.

Next, the function of the protective cover 30B will be described.
In a state before the disc is inserted, as shown in FIG. 5, the protective cover 30B is disposed on the traverse base cover 30A side.
When the disk is mounted on the spindle motor 31, the slider 55 moves to the front side and displaces the lever portion 30E to the lid side, so that the protective cover 30B is also displaced to the lid side. The protective cover 30B is held at the same position even when the disk is rotated. Therefore, at the time of recording and reproduction of the disk device, even if the pickup 32 moves to the outer peripheral position, the pickup 32 does not contact the protective cover 30B. Further, at the time of recording and reproduction of the disk device, the pickup 32 can be cooled by efficiently sending the wind generated by the rotation of the disk to the pickup 32.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a disk device that records or reproduces a disk-shaped recording medium such as a CD or DVD, and particularly to a disk device that needs to be thinned and is used as a peripheral device for home video equipment or a computer.

The top view of the base main body of the disk apparatus by a present Example Cross section of the main part showing the state before inserting the disc Cross-sectional side view of the main part showing the disc insertion state The top view of the base main body which shows the state before the disk insertion of the disk apparatus by other Examples. Cross-sectional side view of the main part in the same state A plan view of the base body showing the disk mounted state of the disk device Cross-sectional side view of the main part in the same state

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Base main body 11 Disc insertion port 13 Rear base 30 Traverse base 30A Traverse base cover 30B Protective cover 30D Displacement means (pressurizing spring)
30E Lever part 32 Pickup 55 Displacement means (slider)

Claims (3)

The chassis exterior is composed of the base body and lid,
Forming a disk insertion slot for directly inserting a disk on the front surface of the chassis exterior;
A traverse base is arranged on the front surface side of the base body,
The pickup held on the traverse base is arranged on the outer peripheral side of the base body during standby,
The traverse base is provided with a traverse base cover,
On the outer peripheral side upper surface of the traverse base cover, the protective cover is provided,
The protective cover is disposed at a position that does not overlap the disk when the disk is mounted on the traverse base, and a displacement means for displacing the protective cover toward the lid is provided .
The slot-in type disk device according to claim 1, wherein the displacing means is a slider that moves in linkage with the operation of the traverse base . 2. The slot-in type disk device according to claim 1, wherein the displacing means is a pressurizing spring provided between the traverse base cover and the protective cover. 2. The slot-in type disk device according to claim 1, wherein the displacement means is an elastic deformation of the protective cover itself.

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