JP4465666B2 - Disk drive - Google Patents

Description

  The present invention relates to a disk drive device used for recording video or music information on a disk (optically transmissive optical disk or magneto-optical disk) and reproducing the recorded information, and more particularly to slot-in. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device that can exhibit an excellent illumination effect when a disk is inserted or ejected in a type of disk drive device.

  The disk drive device has a disk mounted on the tray to be carried into the disk drive device, and the disk drive device has no tray and is provided with a slit-like opening (slot) on the front surface of the disk drive device housing. In some cases, a disk is carried into the disk drive through this opening. A disk drive device that directly inserts a disk into the opening is called a slot-in type.

In this type of disk drive device, various proposals have been made to provide a light emitter in the disk drive device in order to enhance visibility in a dark place and to provide an illumination effect. In a disk drive device having a tray on which a disk is placed, the light emission of the tray is described, for example, in Japanese Utility Model Laid-Open No. 60-194797 (Patent Document 1). Making the vicinity emit light is described, for example, in Japanese Utility Model Publication No. 02-072497 (Patent Document 2).
Japanese Utility Model Publication No. 60-194797 Japanese Utility Model Publication No. 02-072497

  As described in Patent Document 2, the light emitting in the vicinity of the opening can obtain the effect that the position of the opening for inserting the disk becomes clear even in a dark place, but the light is not emitted from the disk itself. Ineffective. In a slot-in type disk drive device, a disk drive device excellent in visibility in a dark place and illumination effect has been desired.

  The present invention has been made in view of the circumstances as described above, and an object of the present invention is to insert a disk into the apparatus from a slit-like opening without using a tray and eject the disk from the apparatus. Is to provide a disk drive device excellent in visibility in a dark place and illumination effect.

To achieve the above object, the present invention provides a disk drive device for driving a disk (D), a housing (1) having an opening (3) for inserting and ejecting the disk, and the opening. A disc transport means (7) for transporting the disc inserted into the housing into the housing, and discharging the disc transported into the housing from the opening; Fixed at positions near both ends in the longitudinal direction of the opening, provided at a position facing the end surface of the disk transported by the disk transport means, and allows light to enter the inside of the disk from the end surface of the disk. a light source (30) is provided between the end face of said light source and said disk, the light emitted from the light source while converging to an end face of the disk, the light emitted from the light source To provide a disk drive device, characterized in that it comprises a light guide member (31) for splitting the second light towards the longitudinal ends of the first light and the opening towards the end face of the disc .

Here, it is preferable that the light guide member has a shape in which the thickness gradually decreases from the light source side toward the end face side of the disc .

  According to the disk drive device of the present invention, visibility in a dark place can be improved, and an excellent illumination effect can be exhibited.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view showing a slot-in type disk drive device according to the present invention. In FIG. 1, reference numeral 1 denotes a casing that forms the exterior of the apparatus, and the front surface thereof is an operation surface 2 provided with operation switches (not shown). The operation surface 2 has a light-transmitting disk D (optical disk or optical disk). A slit-like opening 3 (slot) for inserting and removing the magneto-optical disk) is formed. Here, the disk D is an optical disk such as a CD (compact disk) or a DVD (digital versatile disk).

  Note that a flap plate (not shown) that prevents dust from entering the opening 3 may be provided so that the opening 3 can be freely opened and closed. In this case, the flap plate is preferably formed of a transparent material, so that even when the opening 3 is closed with the flap plate, the light emitted from the light source, which will be described later, leaks out from the opening 3 to position the opening 3. Can be clear.

  In FIG. 1, the outer peripheral end surface f1 and the inner peripheral end surface f2 of the hatched disc D and the transparent portion f3 around the center hole become the main light emitting portion of the disc D as will be described in detail later.

Next, FIG. 2 shows the inside of the housing. In FIG. 2, 4 is a turntable for rotating the disk, 5 is a clamp plate for chucking the center of the disk D in cooperation with the turntable, and 6 is a pickup for detecting a pit row of the disk. A drive unit for recording / reproducing driving of the disk D is constructed by being assembled integrally with a chassis (not shown).
The disk D is rotated in one direction with its center portion chucked by the turntable 4 and the clamp board 5, and in this state, the pickup 6 moves in the radial direction along the board surface of the disk D. ing.

  Further, 7 is a disk transport means for transporting the disk D between the opening 3 and the turntable 4. In this example, the disk transport means 7 is constituted by a feed roller 8 and a fixed plate 9 provided inside the housing 1. The disk transport means 7 is not limited to this configuration, and can also be configured using a pair of feed rollers that sandwich the disk D.

The feed roller 8 is rotated in the forward and reverse directions by a drive source (not shown). The feed roller 8 is parallel to the longitudinal direction of the opening 3 and is spring-biased toward the fixed plate 9 (turntable). 4 in the direction of the rotation axis 4).
The fixed plate 9 is a flat plate-like member formed of synthetic resin or the like, and is provided at an upper portion in the housing 1 than the opening 3 so as to face the feed roller 8. The surface of the fixed plate 9 facing the feed roller 8 is made of a fluororesin and is a smooth surface with a small frictional force. As a result, the disc D that is in sliding contact with the fixed plate 9 is prevented from being damaged.

  Then, according to the disk transport means 7 as described above, the disk D inserted into the opening 3 is sandwiched between the feed roller 8 and the fixed plate 9, and the feed roller 8 is driven to rotate forward in this state so that the disk D is inserted. When the disk D and the turntable 4 are brought into contact with each other while being brought into sliding contact with the fixed plate 9 and the center of the disk D coincides with the center of the turntable 4, the feed roller 8 is lowered and separated from the disk D. The fixed plate 9 is provided with a detector (for example, a photo sensor) (not shown) that detects the insertion of the disk D, so that when the insertion of the disk D is detected, the feed roller 8 is driven to rotate forward. It is.

Further, when the disc D is ejected, the feed roller 8 rises to sandwich the disc D with the fixed plate 9, and in this state, the feed roller 8 is driven in reverse to open the disc D while sliding on the fixed plate 9. Unload to part 3.
When the operation of unloading the disk D by the disk transport means 7 is completed, a part of the disk D is sandwiched from the thickness direction by the feed roller 8 and the fixed plate 9 and about half of the whole is from the opening 3. It is discharged outside the housing 1. As a result, the user can extract the disk D, and after extracting the disk D from the opening 3, another disk D can be inserted into the opening 3.

  FIG. 3 is a schematic plan view showing the inside of the housing. In FIG. 3, reference numeral 10 denotes a pair of left and right rotating members (lever) that open and close the disk transport path. These rotating members 10 are located near the opening 3 in the housing 1 and transport the disk D. It is rotatably attached to the fixed plate 9 across the path. The tip portion of the rotating member 10 is a convex portion 11 projecting into the transport path of the disc D, and the end surface portion of the convex portion 11 contacts the end surface of the disc D when the disc D is inserted into and discharged from the opening 3. The disk contact portion 12 is made.

  Here, a light source 16 is provided in the convex portion 11 forming the disk contact portion 12 of the pair of rotating members 10 and 10. The light source 16 is, for example, a chip-type light emitting diode (LED), and is preferably a multi-color LED capable of generating various light colors by combining red, green, and blue light. It may be a color LED or a single color LED. As shown in FIG. 4, the light source 16 is positioned just opposite to the end surface of the disk D in a state where the disk contact portion 12 is in contact with the end surface of the disk D. Accordingly, the light emitted from the light source 16 enters the inside of the disk D from the end face of the disk D.

Further, in FIG. 3, reference numeral 13 denotes an arcuate guide plate that guides the rotation of the rotating member 10, and 14 denotes a spring that biases the rotating member 10 toward the opening 3, and both ends of the spring 14 are rotated. It is locked to the member 10 and the fixed plate 9.
The rotating member 10 is in the position of the solid line shown in FIG. 3 by the elastic force of the spring 14 before the disk D is inserted into the opening 3 and blocks the transport path of the disk D. When the disk D is inserted into the opening 3, a part of the rotating member 10 (disk contact portion 12) is pressed by the end surface of the disk D, and the opening 3 is centered on the node 15 with the fixed plate 9. By rotating to the back side, the transport path of the disk D is gradually opened. In other words, the distance between the disk contact portions 12 is increased by the disk D, thereby allowing the disk D to pass between the disk contact portions 12 and 12 of the pair of rotating members 10 and 10.

  When the disk D inserted into the opening 3 is carried to a fixed position by the disk transport means 7, the rotating member 10 is locked by the locking means described later, and as shown by the imaginary line in FIG. The portion 12 is held in a state of being separated from the end face of the disk D. When the disk contact portion 12 is separated from the end surface of the disk D, the disk D rotates.

  Before the disk D is inserted into the opening 3, the light emitted from the light source 16 illuminates the opening 3 from the inside. Therefore, even if the disk drive is installed in a dark place, the disk D Can be easily recognized. In combination with this, an excellent illumination effect is also exhibited.

  When the disk D is inserted into the opening 3 and the disk contact portion 12 comes into contact with the end face of the disk D, the light emitted from the light source 16 enters the inside of the disk D from the end face of the disk D as shown in FIG. And incident. The light incident on the inside of the disk D is guided to the outer peripheral end face f1 (externally exposed end) of the disk D outside the housing 1 by repeating reflection between the inner peripheral edge and the outer peripheral edge of the disk D. . Since the disk contact portion 12 keeps contacting the end surface of the disk D until the disk D is transported to the chucking position by the turntable 4 and the clamp board 5, the light emitted from the light source 16 is also transmitted in the process of transporting the disk D. The disk D enters the inside of the disk D from the end face of the disk D and causes the disk D itself to emit light.

  For this reason, the transparent portion of the disk D that is not covered by the light-shielding protective film, in particular, the outer peripheral end surface f1, the inner peripheral end surface f2, and the transparent portion f3 around the center hole are inserted and ejected from the opening D. It emits light with high brightness. As a result, an excellent illumination effect is exhibited. Further, when the disc D is ejected, the visibility is improved by the light emission of the disc D exposed from the opening 3, and the position of the disc D becomes clear even in a dark place, so that the disc D can be easily removed. Can do. When a multi-color LED is used as the light source 16, it is possible to further improve the illumination effect by periodically changing the emission color of the disk D by performing light color conversion control.

  In FIG. 6, reference numeral 17 denotes a substrate to which the light source 16 is conductively connected. The substrate 17 is fixed to the rotating member 10 on the back side of the light source 16. The substrate 17 is conductively connected to a connector 19 (see FIG. 3) disposed on the fixed plate 9 via a flexible signal line 18 (for example, FPC: flexible printed wiring).

  In FIG. 6, C is a cam constituting the locking means. The cam C is an L-shaped piece formed on an existing movable part such as a traverse mechanism that moves the pickup 6 in the radial direction of the disk D, for example. This cam C moves in the transport direction of the disk D (in the direction of the arrow in FIG. 6) in conjunction with the transport operation of the disk D by the disk transport means 7. When the conveyance of the disk D is completed and the disk D reaches the turntable 4 and the clamp board 5 which are the conveyance completion positions, the cam C moves to a position where it engages with the rotating member 10, and the disk contact portion 12 is moved to the disk D. The rotating member 10 is restricted from rotating to the opening 3 side by the urging force of the spring 14.

  The convex portion 11 of the rotating member 10 is a cam follower that engages with the cam C. When the disc D is unloaded by the disc transport means 7, the engagement between the convex portion 11 and the cam C is cut off. The disk contact portion 12 and the end face of the disk are brought into contact again. For this reason, the disk D emits light by the light emitted from the light source 16 regardless of whether the disk D is inserted into or discharged from the opening 3.

  In the disk drive device of the first embodiment configured as described above, the pair of rotating members 10 in the initial state shown by the solid line in FIG. 3 is not rotated before the disk D is inserted into the opening 3. The distance between the light sources 16 and 16 and the positional relationship between the light source 16 and the disk D are preferably as follows.

  In the disk drive device, a disk D12 having a diameter of 12 cm or a disk D8 having a diameter of 8 cm is inserted as the disk D. First, a preferable mode when only the disk D12 is considered will be described. As shown in FIG. 7, the pair of light sources 16 and 16 are arranged symmetrically so as to sandwich the center line L0 in the width direction of the disks D8 and D12. The center line L0 is parallel to the conveying direction of the disks D8 and D12. Since the center hole CH of the disk D12 has a diameter of 15 mm, the distance between the pair of light sources 16 and 16 is preferably 15 mm or more. More preferably, it is 20 mm or more. According to the experiment by the present inventor, it has been clarified that when the light source 16 is disposed outside the center line L0 beyond 50 mm, the illumination effect is hardly exhibited. Therefore, the pair of light sources 16 and 16 is preferably provided in the range of 7.5 mm or more and 50 mm or less in the direction perpendicular to the center line L0 from the center line L0, and more preferably provided in the range of 10 mm or more and 50 mm or less.

In the case of a disk drive dedicated to the disk D12 having a diameter of 12 cm, the pair of light sources 16 and 16 may be provided as described above. However, in consideration of inserting the disk D8 having a diameter of 8 cm, the following is further performed. It is preferable to do. Since the center hole CH of the disk D8 is also 15 mm in diameter, the distance between the pair of light sources 16 and 16 is preferably 15 mm or more, and more preferably 20 mm or more. According to the experiment by the present inventor, it is clear that when the light source 16 is disposed outside the center line L0 beyond 30 mm, the illumination effect in the disk D8 is hardly exhibited.
Therefore, the pair of light sources 16 and 16 is preferably provided in the range of 7.5 mm or more and 30 mm or less in the direction perpendicular to the center line L0 from the center line L0, and more preferably provided in the range of 10 mm or more and 30 mm or less.

  Further, as shown in FIG. 7, when the tangent lines connecting the light source 16 and the end portion (inner peripheral end face f2) of the center hole CH of the disk D12 are L1 and L2, the light indicated by the arrow DR emitted from the light source 16 is shown. The injection direction is preferably directed to the outer peripheral side rather than the inner peripheral side of the disks D8, D12 surrounded by the tangents L1, L2. Thus, even when a disk D8 having a diameter of 8 cm is inserted, the emission direction of light emitted from the light source 16 does not go into the center hole CH of the disk D8. FIG. 7 shows a state in which the light emission direction is parallel to the transport direction (center line L0) of the disks D8 and D12. The light emission direction may be directed to the outer peripheral side from a state parallel to the conveying direction of the disks D8 and D12. If the light from the light source 16 is diffused light having a predetermined cross-sectional area, the light emission direction is the direction in which the central light in the diffused light travels.

  In the first embodiment described above, the pair of rotating members 10 and 10 are provided on both sides of the transport path of the disk D, and the light source 16 is provided on both of them. It is good also as a structure provided only in the member 10, and it is good also considering only the rotation member 10 as one. However, the configuration in which the pair of rotating members 10 and 10 are provided and the light source 16 is provided on both of them provides better light emission of the disk D, so that the light sources 16 are separated from each other than the single light source 16. Two light sources 16 are preferable.

  In the first embodiment, when the disc D is transported by the disc transport means 7, the disc contact portion 12 (light source 16) is moved together with the disc D while the disc contact portion 12 is in contact with the end surface of the disc. As a configuration, the rotating member 10 is used. The configuration for moving the disk contact portion 12 (light source 16) together with the disk D is not limited to this. For example, the disk contact portion 12 (light source 16) is mounted on a member that moves in parallel in the transport direction of the disk D. It may be provided. Since the rotation mechanism such as the rotation member 10 can simplify the configuration, it is preferable to use the rotation member 10. The rotating member 10 is a suitable example of a moving member that moves the disk contact portion 12 (light source 16) together with the disk D.

<Second Embodiment>
Next, a second embodiment of the present invention will be described. In the second embodiment shown in FIGS. 8 and 9, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate. In the second embodiment, a light source 24 is provided on a rotating member 20 which is a detection member for detecting that the disk D is inserted into the opening 3, and light from the light source 24 is transmitted from the end surface of the disk D to the disk D. The disc D is made to emit light by being incident inside.

In FIG. 8, the pair of left and right rotating members 20 and 20 for detecting the insertion of the disk D are positioned in the vicinity of the opening 3 in the housing 1 and sandwich the conveyance path of the disk D with the fixed plate 9. Is pivotally attached to the. A projecting piece 22 corresponding to the detector S is formed at one end of the turning member 20 on the side of the node 21 that forms the turning center. The detector S is a contact type switch composed of a micro switch or the like, and is attached to the fixed plate 9 adjacent to one end of the rotating member 20.
When the disk D is inserted into the opening 3 and the rotating member 20 is rotated, the switching operation of the detector S is performed by the projecting piece 21, whereby the feed roller 8 (FIG. 2) constituting the disk transport means 7. Reference) is driven forward.

Note that a pin 23 that projects through the fixed plate 9 and hangs down in the conveyance path of the disk D protrudes from the tip of the rotation member 20, and rotates when the pin 23 is pressed by the end surface of the disk D. The member 20 is rotated.
The pin 23 serves as a disk contact portion with which the end surface of the disk D contacts when the disk D is inserted into and discharged from the opening 3. An arcuate guide groove (not shown) is formed in the fixed plate 9 to allow the movement of the pin 23.

The rotating member 20 is provided with a light source 24 for allowing light to enter from the end surface of the disk D whose end surface is in contact with the pin 23. The light emitted from the light source 24 and entering the inside of the disk D emits light when the disk D is inserted into and discharged from the opening 3.
In this example, the pin 23 is formed of a light transmissive material such as a transparent resin, and the light source 24 is embedded therein. However, the pin 23 is formed of a non-translucent member to position the light source 24. A light exit window may be formed on the light source 24, or the light source 24 may be provided adjacent to the pin 23.

  Here, the operation of the disk drive device of the second embodiment shown in FIG. 8 will be described with reference to FIG. FIG. 9A shows a state before the disk D is inserted. At this time, the pair of rotating members 20 are held in a state in which the pins 23 are spaced apart from each other by a spring (not shown). Has been.

When the disk D is inserted into the opening 3 in this state, the pair of left and right rotating members 20 and 20 are pushed and expanded by the disk D as shown in FIG. 9B, whereby the switching operation of the detector S by the projecting piece 22 is performed. Is done. The switching operation here is to detect that the protruding piece 22 is separated from the detector S. Then, the feed roller 8 constituting the disk transport means 7 is activated, and the loading of the disk D into the housing 1 is started.
Further, when the disk D is inserted into the opening 3, the light from the light source 24 enters the inside from the end face of the disk D in the housing 1, and the incident light is between the inner and outer peripheral edges of the disk D. The light is guided to the outer peripheral end face f1 (externally exposed end) of the disk D outside the housing 1 by repeating reflection. For this reason, the disk D is drawn into the housing 1 while emitting light.

  Then, the disk D enters the housing 1 while spreading the pair of left and right rotating members 20, 20, and when the central portion of the disk D passes between the pins 23, 23, the rotating member 20 is not shown. While the pin 23 is kept in contact with the end face of the disk D by the action of the spring, rotation gradually starts in the closing direction along the outer periphery of the disk D as shown in FIG. When the center of the disk D is guided onto the turntable 4, the rotating member 20 returns to the initial position as shown in FIG. 7D, and the pin 23 is separated from the end surface of the disk D.

  When the disk D in the housing 1 is transported toward the opening 3 by the disk transport means 7, the pins 23 and 23 are pressed by the disk D moving from the housing 1 toward the opening 3. As a result, the rotating member 20 is expanded. Then, the light from the light source 24 is incident on the inside of the end surface of the disk D, so that the disk D emits light. The disc D is discharged from the opening 3 to the outside of the housing 1 while being in a light emitting state, and is in a state of waiting for removal by the user.

Therefore, also in the disk drive device of the second embodiment, the position of the opening 3 is clarified by the light from the light source 24 leaking from the opening 3 before the disk D is inserted into the opening 3. Even in this place, the disk D can be easily inserted into the opening 3. Further, since the disc D emits light with high luminance when the disc D is inserted into and discharged from the opening 3, an excellent illumination effect is exhibited. Since the visibility of the disk D is improved when the disk D is ejected, the disk D can be easily removed.
In the second embodiment, since the light source 24 is provided in the detection member for detecting that the disk D is inserted, a dedicated mechanism for moving the light source 16 together with the disk D as in the first embodiment. Since it is not necessary, it has the effect that it can be configured at low cost.

  In the second embodiment described above, the pair of rotating members 20 and 20 for detecting the insertion of the disk D are provided on both sides of the transport path of the disk D, and the light source 24 is provided on both of them. It is good also as a structure which provides only any one rotation member 20, and is good also considering the rotation member 20 as only one. However, the provision of the pair of rotating members 20 and 20 can reliably detect the insertion of the disk D, and the configuration in which the light source 24 is provided on both the rotating members 20 makes the light emission of the disk D better. Rather than having only one moving member 20 and light source 24, it is preferable to have two rotating members 20 and light sources 24 that are spaced apart from each other.

  Also in the second embodiment, the positional relationship between the pair of light sources 24, 24 and the center line L0 in the width direction of the disk D is preferably as described in FIG.

<Third Embodiment>
Next, a third embodiment of the present invention will be described. In the third embodiment shown in FIGS. 10 and 11, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate. In the third embodiment, the fixed light source 30 is provided instead of the light sources 16 and 24 that move when the disk D is transported as in the first and second embodiments.

  FIG. 10 is a schematic plan view showing a state where the disk D is inserted or ejected from the opening 3. As shown in FIG. 10, a pair of light sources 30 are provided in the vicinity of both ends in the longitudinal direction of the opening 3 in the housing 1 with the conveyance path of the disk D interposed therebetween. The light source 30 is fixed at a position facing the end surface of the disk D when the disk D is inserted into and discharged from the opening 3, and the disk D emits light by light emitted from the light source 30. Note that the facing of the light source 30 and the end face of the disk D here does not only mean that they face each other directly, but other members are arranged between them so that they face each other indirectly. It also means that That is, it means that the position in the height direction between the light source 30 and the end surface of the disk D (the position in the direction orthogonal to the surface of the disk D) is substantially matched.

  In FIG. 10, a light guide member 31 is provided in the vicinity of the light source 30 for intensively guiding the light emitted from the light source 30 to the end surface of the disk D. The light source 30 and the light guide member 31 may be brought into close contact with each other. The light guide member 31 is made of, for example, a prism. The light guide member 31 preferably collects light emitted from the light source 30 and splits it into light Lt1 directed toward the disk D and light Lt2 directed toward both ends in the longitudinal direction of the opening 3. . In this way, light emitted from the light source 30 enters the inside of the disk D from the end face of the disk D, and the outer peripheral end face f1, the inner peripheral end face f2, and the transparent portion f3 around the center hole emit light. The light Lt2 leaks from the gap between the opening 3 and the disk D.

  As shown in FIG. 11, it is preferable that the light guide member 31 has a tapered shape in which the thickness gradually decreases from the light source 30 side toward the end face side of the disk D, thereby increasing the amount of light entering the disk D. be able to.

  Also in the disk drive device of the third embodiment, the position of the opening 3 is clarified by the light from the light source 30 leaking from the opening 3 before the disk D is inserted into the opening 3, so that even in a dark place. The disk D can be easily inserted into the opening 3. Further, since the disc D emits light with high luminance when the disc D is inserted into and discharged from the opening 3, an excellent illumination effect is exhibited. Since the visibility of the disk D is improved when the disk D is ejected, the disk D can be easily removed.

  The disk drive devices according to the first to third embodiments described above can be applied to CD players, DVD players, DVD recorders, car navigation DVD players, and the like. In addition, the disk drive devices of the first to third embodiments are suitable as vehicle-mounted disk drive devices, and of course are also suitable for indoor stationary types and portable type disk drive devices other than vehicle-mounted ones.

It is an external appearance perspective view of the 1st-3rd embodiment of this invention. It is the top view which showed roughly the internal structure of 1st-3rd embodiment seeing from the side surface side. It is the top view which showed roughly the internal structure of 1st Embodiment seeing from the upper surface side. It is a top view for demonstrating 1st Embodiment. It is a top view for demonstrating the effect | action at the time of insertion or discharge | emission of the disc in 1st Embodiment. It is an enlarged view for demonstrating the rotation member in 1st Embodiment. It is a figure for demonstrating the preferable form of 1st Embodiment. It is the top view which showed roughly the internal structure of 2nd Embodiment seeing from the upper surface side. It is a figure for demonstrating operation | movement of 2nd Embodiment. It is the top view which showed roughly the internal structure of 3rd Embodiment seeing from the upper surface side. FIG. 3 is a diagram for explaining a preferred embodiment of a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing | casing 3 Opening part 4 Turntable 6 Pickup 7 Disc conveyance means 8 Feed roller 9 Fixed plate 10,20 Rotating member 12 Disc contact part 16, 24, 30 Light source 23 Pin (disc contact part)
31 Light guide member C Cam (locking means)
D disc

Claims (2)

In a disk drive device for driving a disk,
A housing in which an opening for inserting and ejecting the disk is formed;
A disc transport means for transporting the disc inserted into the opening into the housing, and discharging the disc transported into the housing from the opening;
The inside of the housing is fixed at a position in the vicinity of both ends in the longitudinal direction of the opening, and is provided at a position facing the end face of the disk transported by the disk transporting means from the end face of the disk to the inside of the disk. a light source for incident light into,
A first light source is provided between the light source and the end surface of the disk, and condenses the light emitted from the light source onto the end surface of the disk, and directs the light emitted from the light source toward the end surface of the disk. A disk drive device comprising: a light guide member that splits the light into second light that travels toward both ends in the longitudinal direction of the opening . 2. The disk drive device according to claim 1 , wherein the light guide member has a shape in which the thickness gradually decreases from the light source side toward the end surface side of the disk.

Images