JP2009157955A - Disk player, and method and program for controlling disk player - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eject a disk at a position substantially matched with a position where the disk can be re-inserted (reloaded) even when the ambient temperature of the disk player is changed or the loading motor is deteriorated with time. <P>SOLUTION: The disk player performs reproduction by loading a disk inserted in an inserting port onto an inner side of a body. The disk player includes a loading motor, which has a transfer motor for ejection and transfers the disk. A disk transfer speed of ejecting the disk to a reloadable position by the loading motor is detected, and based on the detected disk transfer speed, a transfer time required for transferring the disk to the reloadable position is calculated and set. Based on the set transfer time, drive time of the loading motor is controlled. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disc player that is mounted on a vehicle and reproduces information on a recording medium disc such as a CD (compact disc) or a DVD (digital versatile disc), a control method and a control program for the disc player, and is particularly inserted. TECHNICAL FIELD OF THE INVENTION

Generally, in a conventional disc player such as a CD or DVD player mounted on a vehicle, the disc drawn into the main body by sucking a disc having a different diameter (size) such as an 8 cm disc or a 12 cm disc from an insertion slot. Is clamped on a turntable and chucked for reproduction (see, for example, Patent Document 1).
By the way, in such a disc player, when the inserted disc is ejected (ejected), it is necessary to eject the disc to a position where it can be reinserted (reloaded).
For this reason, conventionally, when a disk is transported to a re-insertable (reloadable) position using a loading motor, the disk is always ejected to a certain place using a mechanical sensor or an optical sensor. It was.
WO / 2001/091119

However, when the ambient temperature of the disc player or the disc player is used for a long period of time, the disc transport speed differs from the predetermined speed due to the deterioration of the loading motor over time.
As a result, the position of the disc at the time of ejection is different, and in some cases, the ejection may not be completed or it may be transported to a position where it cannot be reinserted (reloaded).
Accordingly, an object of the present invention is to eject a disc almost uniformly at a position where it can be re-inserted (reloaded) even if the ambient temperature of the disc player changes or the loading motor deteriorates over time. The present invention provides a disc player, a disc player control method, and a control program.

In order to solve the above problems, in a disk player that loads and reproduces a disk inserted into an insertion slot inside a main body, the disk player has an ejection transport motor, and transports the disk by the transport section. Based on the detected disk transport speed, a transport time for transporting the disk to the reloadable position is calculated based on the detected disk transport speed and a disk transport speed when ejecting to a reloadable position. , And a drive control unit that controls the drive time of the ejection transport motor according to the set transport time.
According to the above configuration, the ejection speed detection unit detects the disk conveyance speed when the conveyance unit ejects the disk to a position where it can be reloaded.
Thereby, the transport time setting unit calculates and sets the transport time when transporting the disk to the reloadable position based on the detected disk transport speed, and the drive control unit follows the set transport time. Controls the drive time of the ejection transport motor.

In this case, the ejection speed detection unit may detect the ejection speed based on a time for transporting the disk over a predetermined distance.
A loading position detector for detecting a loading completion position of the disc;
A reload position detection unit that detects that the disk is positioned in the vicinity of the reloadable position, and the ejection speed detection unit detects the reload position after the disk is detected by the loading position detection unit. The disk transport speed may be calculated based on the time until the disk is detected in the section.
Furthermore, the transport time setting unit may calculate the transport time as a function of the time required for ejecting the disk to a position where the disk can be reloaded by the transport unit.

  Further, in a control method of a disc player having an ejection transport motor and loading and reproducing the disc inserted into the insertion slot inside the main body, a transport process of transporting the disc by the eject transport motor, and the transport An ejection speed detection process for detecting a disk transport speed when ejecting the disk to a reloadable position in the process, and a transport when transporting the disk to the reloadable position based on the detected disk transport speed A transport time setting process unit for calculating and setting time, and a drive control process for controlling the drive time of the ejection transport motor according to the set transport time are provided.

  In addition, in a control program for controlling a disc player that has an ejection transport motor and loads and reproduces the disc inserted into the insertion slot inside the main body, the disc is transported by the ejection transport motor. , Detecting a disk transport speed when ejecting the disk to a reloadable position, and calculating a transport time when transporting the disk to the reloadable position based on the detected disk transport speed, The driving time of the ejection transport motor is controlled according to the set transport time.

  According to the present invention, even when the ambient temperature of the disc player changes or the loading motor deteriorates over time, the disc can be ejected at a substantially constant position where it can be reinserted (reloaded). It becomes possible.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the external appearance of the disc player according to the present embodiment.
In the disc player 1, a recording medium disc having a different size such as a diameter of 8 cm or a diameter of 12 cm, such as a CD or a DVD, is drawn and information recorded on the disc is reproduced. The disc player 1 includes a chassis 3 made of sheet metal. The chassis 3 includes a lower chassis 5 and an upper chassis 7 that covers the upper portion of the lower chassis 5, and a loading mechanism for loading a disk, which is not shown in FIG. There are provided a clamper mechanism for driving, a drive mechanism for driving the clamper mechanism, and the like.
Further, on the upper surface of the upper chassis 7, a loading switch SWA for detecting the loading position of the disc and a reloading switch SWB for detecting the reloading position of the disc are provided. The detection method will be described later.

FIG. 2 is a perspective view with the upper chassis removed. FIG. 3 is a perspective view of the lower chassis. FIG. 4 is a left perspective view of the drive unit attached to the lower chassis. FIG. 5 is a right perspective view of the drive unit attached to the lower chassis.
The lower chassis 5 is formed in a frame shape as shown in FIG. 3, and three vibration isolation structures 11 having dampers and springs are attached to the lower chassis 5. As shown in FIG. 2, a drive unit 9 in which a clamper mechanism and a drive mechanism are integrated is placed and supported in a floating manner. 4 and 5, the drive unit 9 includes a base plate 13 and a swing plate 17 that is connected to both sides of the rear end portion of the base plate 13 by hinges 15 and spring-biased in a direction to close the front end 17A. It is prepared for. A rotating plate 19 is supported on the tip 17 A of the swing plate 17, and a turntable 21 containing a magnet facing the rotating plate 19 is supported on the base plate 13. As will be described later, when the disc is inserted and the swing plate 17 is closed, the disc can be rotated by being sandwiched between the rotating plate 19 at the tip 17A and the turntable 21 with magnet.

As shown in FIG. 1, a horizontally long disk insertion slot 23 is formed in the front surface of the main body 1, and at the back of the insertion slot 23 is a motor 24 at the front of the lower chassis 5 as shown in FIG. 2. A loading roller 25 to be driven is provided.
When the disc is detected, the loading roller 25 is driven by the motor 24 to draw the disc into the main body 1. The loading roller 25 is supported by a roller support plate 27, and the base of the roller support plate 27 is connected to the lower chassis 5 by a hinge pin 28. Therefore, the loading roller 25 displaces its height position by the swinging of the roller support plate 27.

  A trigger plate 31 is swingably supported via a support pin 30 on the left rear portion of the upper surface of the drive unit 9. The trigger plate 31 is biased counterclockwise by a spring 31S, and two claw portions 32 and 33 bent inward of the drive unit 9 are integrally formed at one end 31A thereof. Yes. The pulled-in 8 cm disc can come into contact with one claw portion 32, and the drawn-in 12 cm disc can come into contact with the other claw portion 33. The other end 31 </ b> B of the trigger plate 31 extends to the outside of the drive unit 9 and is bent downward along the outer wall of the drive unit 9. The other end 31 </ b> B contacts the rear surface 35 </ b> K of the trigger 35 disposed in the lower chassis 5. Then, when the disc is drawn into the main body 1 and abuts against one of the claws 32 and 33 and the trigger plate 31 rotates counterclockwise, the trigger plate 31 advances the trigger 35 (in the direction of arrow X). Let As shown in FIG. 4, the trigger 35 is normally biased toward the other end 31 </ b> B (in the direction of arrow Y) by a spring 34.

  A part of the trigger 35 extends forward from the bottom of the lower chassis 5, and a trigger rack gear 35A is integrally formed on the upper surface of the extension. A final gear 37 (see FIG. 3) supported by the side plate 5A of the lower chassis 5 is disposed in front of the trigger rack gear 35A. The final gear 37 is supported at a position where it does not mesh with the trigger rack gear 35A at normal times, and meshes with the trigger rack gear 35A only when the trigger plate 31 rotates and the trigger 35 moves forward. As shown in FIG. 2, the final gear 37 is connected to the motor 24 at the front of the lower chassis 5 via a gear train 38 composed of a plurality of gears. When the motor 24 is driven, the trigger rack gear 35A is connected. Once the final gear 37 is engaged, the trigger 35 is advanced by the driving force of the final gear 37 and the motor 24 thereafter.

As shown in FIG. 4, a trigger cam 41 is integrally connected to the trigger 35. The trigger cam 41 extends inside the gear wheel train 38 in parallel with the gear wheel train 38, and a cam surface 41A is formed on the middle upper surface. The part is formed with a step-like inclined groove 41B that rises forward to guide the drive shaft 25A (see FIG. 2) of the loading roller 25. A part 17B of the swing plate 17 of the drive unit 9 is in contact with the cam surface 41A.
After the trigger 35 meshes with the final gear 37 and moves to the stroke end, the trigger cam 41 is pushed out, the rack of the trigger cam 41 meshes with the final gear 37, and the trigger cam 41 moves forward (in the direction of arrow X).

  When the trigger cam 41 moves forward (in the direction of the arrow X), the cam surface 41A with which the part 17B is in contact is gradually lowered, and the swing plate 17 is swung in the closing direction by the spring force. When the trigger cam 41 further moves forward and moves to the forward limit position, the part 17B is completely separated from the cam surface 41A, and the disc clamping by the rotary plate 19 at the tip of the swing plate 17 and the turntable 21 is completed. . At the same time, the engagement of the part 17B of the swing plate 17 and the cam surface 41A causes the drive unit 9 to be completely supported by floating via the three vibration isolation structures 11. At the same time, the drive shaft 25A of the loading roller 25 moves to a low position along the inclined groove 41B, and the loading roller 25 is displaced low by the swinging of the roller support plate 27. Move away from the bottom of the disc. In this state, the turntable 21 is rotated to reproduce the disc.

  When the motor 24 is rotated in the reverse direction, the trigger 35 and the trigger cam 41 move backward (in the direction of arrow Y) via the gear wheel train 38, the final gear 37, and the trigger rack gear 35A. Along with this, the cam surface 41A with which the part 17B abuts gradually increases, and the swing plate 17 is pushed up against the spring force and swings in the opening direction. When the trigger cam 41 further moves backward and moves to the retreat limit position, a part 17B rides on the highest position of the cam surface 41A, and the disk is located between the rotary plate 19 at the tip of the swing plate 17 and the turntable 21. A gap for insertion is formed.

At the same time, the drive shaft 25A of the loading roller 25 gradually moves to a higher position along the inclined groove 41B. At the retreat limit position, the loading roller 25 is brought into contact with the lower surface of the disk by the swinging of the roller support plate 27. High displacement until contact. Then, the disc is ejected by the loading roller 25.
After ejecting the disc, it is in a waiting state for loading. In an eject or loading standby state, the drive unit 9 is locked to the lower chassis 5 by a mechanism not shown.

FIG. 6 is a top view of the upper chassis.
In this configuration, as shown in FIG. 1, a pair of gate members 59 that come in contact with the outer peripheral portion of the disk to be inserted and retract to the side of the insertion slot 23 are provided in the disk insertion slot 23. Yes.
The gate member 59 is provided with a pair of turn plates 62 and 63 arranged substantially at the center with respect to the insertion port 23, and these turn plates 62 and 63 are formed on the front outer surface of the upper chassis 7 as shown in FIG. Are connected via pins (support members) 64 and 65, respectively. The turn plates 62 and 63 are biased in the closing direction (in the direction of arrow A) by the springs 60 and 61, and a pair of gate pins 67 and 68 facing the insertion port 23 are attached to the turn plates 62 and 63. Yes.

Further, slide holes 62A and 63A are formed in the base portions of the turn plates 62 and 63, and pins 71 and 72 that fit into the slide holes 62A and 63A are attached to the connecting plate 73, respectively. The bases of these turn plates 62 and 63 are connected by a connecting plate 73. A pin 173 is fixed to the connecting plate 73, and the pin 173 is fitted in the vertical hole 107 of the upper chassis 7 and faces the lower surface of the upper chassis 7 as shown in FIG. 9. Arc holes 107A and 170B having a diameter larger than the width W of the vertical hole 107 are formed in both hole walls in the middle of the vertical hole 107.
Further, the turn plate 62 is in contact with the loading switch SWA and the reloading switch SWB shown in FIG. 1, and is connected to the protrusion 62X for turning on and the loading switch SWA and the reloading switch SWB for maintaining the on state. And a sliding portion 62Y that is slidably contacted. With this configuration, when the reloading switch SWB is in the on state, the loading switch SWA is always on by the sliding portion 62Y.
As shown in FIG. 6, a pair of guide holes 74 and 75 extending in the disc insertion direction (the direction of arrow Z) are formed in the connection plate 73, and guide portions that fit into the guide holes 74 and 75 are formed. 76 and 77 are formed by cutting and raising a part of the upper chassis 7, raising it upward, and then bending it horizontally. The raised thin parts fit into the guide holes 74 and 75. Reference numeral 78 denotes a plate attached to the upper chassis 7, and this plate 78 functions as a stopper in the closing direction of the turn plates 62 and 63.

FIG. 7 is a perspective view showing a state in which a pair of gate members are opened with a 12 cm disc.
When the disc is inserted into the insertion slot 23, the disc pushes the gate pins 67 and 68 sideways. For example, when the disc 100 having a large 12 cm diameter is inserted, as shown in FIG. 7, the outer peripheral portion 100A of the disc 100 pushes the pair of gate pins 67 and 68 toward the side of the insertion slot 23, thereby turning the turn plates 62 and 63. Rotates in the direction of opening (direction of arrow B). Along with this rotation, the pins 71 and 72 move in the slide holes 62A and 63A, thereby interlocking with the swinging of the turn plates 62 and 63, and the connecting plate 73 along the guide portions 76 and 77. Reciprocate in the disc insertion direction (in the direction of arrow Z).

FIG. 8 is a perspective view showing a state in which a pair of gate members are opened with an 8 cm disc.
In this case, since the disc diameter is smaller than the width of the insertion port 23, there is a possibility that the disc is inserted biased to one end of the insertion port 23. For example, when the disk 200 is inserted in a biased manner toward one gate pin 67, the other gate pin 68 is hardly pushed away, and only one pin 67 is pushed away. In this case, only the turn plate 62 on the side of one gate pin 67 rotates in the opening direction (the direction of arrow B).

  In this configuration, when the other turn plate 63 is not opened and only the one turn plate 62 is opened, the connecting plate 73 is rotated only on the pin 71 side without rotating on the pin 72 side. In this case, the connecting plate 73 is inclined.

  When the connecting plate 73 is inclined, referring to FIG. 9B, the pin 173 that moves through the vertical hole 107 is fitted into one of the arc grooves 107A and 107B inclined in the middle of the vertical hole 107, and the connecting plate 73 is Further, the disc 200 does not move in the insertion direction of the disc 200 (in the direction of the arrow Z). Therefore, further rotation of the turn plates 62 and 63 is prevented, and disc insertion is prevented. This state is the same when the disc 200 is inserted with a bias toward the other gate pin 68. The pin 173 and the arc grooves 107A and 107B constitute the locking means for the turn plates 62 and 63.

  In other words, in this configuration, when the disc 200 is inserted with a bias toward the end of the insertion slot 23, the pin 173 is caught by the arc grooves 107A and 107B to become resistance, and the connecting plate 73 is locked. According to this, the insertion of the disc biased toward the end of the so-called insertion slot 23 is prohibited. Therefore, a conventional mechanism for guiding the disk sucked in a state of being close to one side to the center inside the main body becomes unnecessary, and the apparatus can be miniaturized correspondingly, particularly in the thickness direction of the apparatus. The dimensions can be reduced.

FIG. 9 is a perspective view of the upper chassis 7 as viewed from the back side.
In the present embodiment, when the upper chassis 7 is assembled, it projects downward (on the side facing the loading roller 25) to the inner surface of the upper chassis 7 and guides the disk inserted into the insertion slot 23 downward (or upward). Guide bars (guide mechanisms) 81 and 82 extending in two rows are provided.

  These guide bars 81 and 82 extend in parallel to each other in the lateral direction of the insertion port 23, and each gradually increases in height toward the end of the insertion port 23. The front guide bar 81 gradually increases the height of the protrusion 81A from the position m near the center, and the back guide bar 82 gradually increases the height of the protrusion 82A from the position n closer to the end. Make it bigger. A loading roller 25 is opposed to the pair of guide bars 81 and 82, and is sandwiched between the roller 25 and the guide bars 81 and 82 to load the disc.

FIG. 10 is a cross-sectional view when an 8 cm diameter disc is inserted.
FIG. 11 is a perspective view when an 8 cm diameter disc is inserted.
FIG. 12 is a cross-sectional view when a 12 cm diameter disk is inserted.
FIG. 13 is a perspective view when a 12 cm diameter disk is inserted.
As shown in FIG. 10, when an 8 cm diameter disc 200 is inserted, the disc 200 inserted from the insertion slot 23 is placed between the loading roller 25 and the low protrusions 81A and 82A of the guide bars 81 and 82. It is sandwiched and loaded into the back of the main body 1 along the first loading path RK1 positioned at a high position inside the main body 1. A first disk contact portion 83 is located at the end of the first loading path RK1, and the disk 200 stops by contacting the first disk contact portion 83. At this stage, the disk 200 is As shown in FIG. 11, the claw portion 32 of the trigger plate 31 is pushed, and this is used as a trigger to perform the clamping operation of the disc 200 as described above.

As shown in FIG. 12, when a 12 cm diameter disc 100 is inserted, the disc 100 inserted from the insertion slot 23 is formed between the loading roller 25 and the protruding portions 81A and 82A of the respective guide bars 81 and 82 which are raised. It is sandwiched between and loaded into the back of the main body 1 along the second loading path RK2 located in the lower part inside the main body 1.
As shown in FIG. 13, a guide bar 331 is formed on the outer periphery (right back in the figure) of a 12 cm diameter disc 100 so as to be in contact therewith. The guide bar 331 is rotatably supported by a pin 310 and is urged clockwise around the pin 310 via a spring 312.

As shown in FIG. 11, a taper surface 313 is formed on the lower surface of the free end of the guide bar 331, and when a 12 cm diameter disc 100 is inserted, first, the disc 100 is moved along the taper surface 313. The tip 100A of the trigger plate 31 is directed downward, and the claw portions 32 of the trigger plate 31 are crossed. When the disk 100 further enters the back, the guide bar 331 rotates counterclockwise around the pin 310, and the guide bar 331 guides the outer periphery of the disk 100, and stable loading is executed. A second disk abutting portion 84 is located at the end of the second loading path RK2, and the disk 100 comes into contact with and stops at the second disk abutting portion 84. As shown in FIG. 13, 100 pushes the claw portion 33 of the trigger plate 31, and this is used as a trigger to execute the clamping operation of the disc 100 as described above. When this clamping is completed, the protrusion 314 on the lower surface of the guide bar 331 is fitted into a recess (not shown) on the swing plate 17 side, and the guide bar 331 is fixed away from the outer periphery of the disk 100. Therefore, the guide bar 331 does not come into contact with the disc 100 during performance.

  In this configuration, since different loading paths RK1 and RK2 are formed separately inside the main body 1, a complicated mechanism for holding discs having different diameters at the end of the loading path as in the prior art. There is no need to provide the device, and the device can be thinned. The present configuration can also be applied to, for example, a disc player that loads discs of different materials. In this case, if the loading path is devised according to the material, etc., a disc that is not damaged or the like is provided. .

Next, the operation at the time of disc ejection will be described.
FIG. 14 is a block diagram of the control system.
The control system includes a controller 110 that controls the whole, a loading switch SWA that detects the loading position of the disk, a reloading switch SWB that detects the reloading position of the disk, a chucking switch SWC that detects the disk chucking position, And a loading motor 24 for loading.

FIG. 15 is a process flowchart for ejecting a 12 cm disc.
First, the controller 110 sets a 5 sec timer (step S11).
Next, the loading motor 24 is rotated in the eject direction (step S12).
Next, the controller 110 determines whether or not the loading switch SWA is turned on by ejecting the disk and rotating the turn plate 62 (step S13).
If the loading switch SWA is off in step S13 (step S13; No), the controller 110 determines whether the 5 sec timer has timed out because the disc has not yet been ejected. (Step S14).

If it is determined in step S14 that the 5 sec timer has not yet timed out, the controller 110 shifts the process to step S13 again and enters a standby state.
If it is determined in step S14 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S15).
If it is determined in step S13 that the loading switch SWA is on (step S13; Yes), the disk is being ejected, and therefore the controller 110 sets a 5 sec timer again (step S16).
Then, in order to set the eject position to a predetermined reloadable position, measurement of a reloadable position determination timer is started (step S17).

Next, the controller 110 determines whether or not the reloading switch SWB is turned on by ejecting the disk and rotating the turn plate 62 (step S18).
If the reloading switch SWB is off in step S18 (step S18; No), since the disk has not yet reached the end position of the reloadable position, the controller 110 has a 5 sec timer. It is determined whether or not a timeout has occurred (step S19).
If it is determined in step S19 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S18 again and enters a standby state.
If it is determined in step S19 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S20).

If it is determined in step S18 that the reloading switch SWB is on (step S18; Yes), the end position of the reloadable position has been reached, and the reloadable position determination timer is measured. Stop (step S21).
Then, the controller 110 again sets a 5 sec timer (step S22).
Next, the controller 110 determines whether or not the reloading switch SWB is turned off again by ejecting the disk and rotating the turn plate 62 (step S23).
If the reloading switch SWB is in the ON state in the determination in step S23 (step S23; No), since the disk has not yet reached the end position of the reloadable position, the controller 110 has a 5 sec timer. It is determined whether or not a timeout has occurred (step S24).

If it is determined in step S24 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S23 again and enters a standby state.
If it is determined in step S24 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S25).
If the reloading switch SWB is in the OFF state in the determination in step S23 (step S23; Yes), the reloadable position determination weight (waiting time) is set to a predetermined percentage (for example, the value measured by the reloadable position determination timer). , 35%) (step S26).
Then, the controller 110 stops the loading motor 24 (step S27), clears the disk diameter data, and ends the process (step S28).

Next, the eject retry process will be described.
FIG. 16 is a process flowchart (No. 1) of the eject retry process for a 12 cm disc. FIG. 17 is a process flowchart (part 2) of the eject retry process for a 12 cm disc.
When the process proceeds to the eject retry process, that is, when the disk ejection fails, the controller 110 sets a retry counter to a predetermined value (step S31). In this embodiment, the count value of the retry counter is set to 3. This corresponds to a retry count of 3 times.
Subsequently, the controller 110 performs a stop process for the loading motor 24 (step S32).
Subsequently, the controller 110 rotates the loading motor 24 in the loading direction (step S33).
Then, the controller 110 sets a 5 sec timer so as to secure a sufficient time for chucking the disk (step S34).
Subsequently, the controller 110 determines whether or not the chucking switch SWC is on (step S35).

If it is determined in step S35 that the chucking switch SWC is off (step S35; No), the controller 110 determines whether or not the 5 sec timer has timed out (step S36).
If it is determined in step S36 that the 5 sec timer has not yet timed out (step S36; No), the controller 110 proceeds to step S35 again.
If it is determined in step S36 that the 5 sec timer has timed out (step S36; Yes), the controller 110 shifts the process to a full ejection process described later (step S37).

If it is determined in step S35 that the chucking switch SWC is on (step S35; Yes), the controller 110 waits for 300 msec (step S38), rotates the disk (step S39), and waits for 32 msec (step S35). Step S40).
Then, the controller 110 stops the disk rotation (step S41).
Next, the controller rotates the loading motor 24 in the eject direction to transport the disc in the eject direction (eject direction) (step S42).
Subsequently, the controller 110 sets a 5 sec timer (step S43).
Next, the controller 110 determines whether or not the disk is transported and the loading switch SWA is on (step S44).

If it is determined in step S44 that the loading switch SWA is in the OFF state (step S44; No), the controller 110 determines whether or not the 5 sec timer has timed out (step S45).
If it is determined in step S45 that the 5 sec timer has timed out (step S45; Yes), the controller 110 proceeds to step S56 described later.
If it is determined in step S45 that the 5 sec timer has not yet timed out (step S45; No), the controller 110 shifts the process to step S44 again.
If it is determined in step S44 that the loading switch SWA is on (step S44; Yes), the controller 110 starts measuring a reloadable position determination timer to set the eject position to a predetermined reloadable position. (Step S46).

Next, the controller 110 determines whether or not the reloading switch SWB is turned on by ejecting the disk and rotating the turn plate 62 (step S47).
If the reloading switch SWB is in the OFF state in the determination in step S47 (step S47; No), the controller 110 has a 5 sec timer because the disk has not yet reached the end position of the reloadable position. It is determined whether or not a timeout has occurred (step S48).

If it is determined in step S48 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S47 again and enters a standby state.
If it is determined in step S48 that the 5 sec timer has timed out, the controller 110 proceeds to step S56.
If it is determined in step S47 that the reloading switch SWB is in the on state (step S18; Yes), the end position of the reloadable position has been reached, so the reloadable position determination timer is measured. Stop (step S49).
Then, the controller 110 again sets a 5 sec timer (step S50).
Next, the controller 110 determines whether or not the reloading switch SWB is turned off again by ejecting the disk and rotating the turn plate 62 (step S51).

If the reloading switch SWB is in the ON state in the determination in step S51 (step S51; No), since the disk has not yet reached the end position of the reloadable position, the controller 110 has a 5 sec timer. It is determined whether or not a timeout has occurred (step S52).
If it is determined in step S52 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S51 again and enters a standby state.
If it is determined in step S51 that the reloading switch SWB is in the OFF state (step S51; Yes), the reloadable position determination weight (waiting time) is set to a predetermined percentage (for example, the value measured by the reloadable position determination timer). , 35%).

Then, the controller 110 stops the loading motor 24 (step S54), clears the disk diameter data, and ends the process (step S55).
If it is determined in step S52 that the 5 sec timer has timed out, the controller 110 determines whether or not three retry processes have been completed (step S56).
If it is determined in step S56 that the retry process has not been completed three times (step S56; No), the process proceeds to step S32 again, and the same process is performed thereafter.
If it is determined in step S56 that the retry process has been completed three times (step S56; Yes), the loading motor 24 is stopped (step S57), the mechanical error flag is set (step S), and the following description will be given. The process proceeds to full ejection processing (step S59).

Next, the full ejection process will be described.
FIG. 18 is a flowchart (part 1) of the full eject process. FIG. 19 is a process flowchart (part 2) of the full eject process.
When shifting to the full ejection process, the controller 110 first rotates the loading motor 24 in the ejection direction (step S81).
Next, the controller 110 determines whether or not there is an eject command when the disk is not inserted (NODISC) (step S82).
If it is determined in step S82 that there is no eject command when the disk is not inserted (NODISC) (step S82; Yes), the controller 110 determines whether the loading switch SWA is OFF, that is, the disk is not inserted (NODISC). Is determined (step S83).

If it is determined in step S83 that the loading switch SWA is on, that is, the disc is in the inserted state (step S83; No), the process proceeds to step S89.
If it is determined in step S83 that the loading switch SWA is off, that is, the disk is not inserted (NODISC), the controller 110 sets a 2-second timer (step S84).
Subsequently, the controller 110 determines whether or not the 2-second timer has timed out (step S85).
If it is determined in step S85 that the 2-second timer has timed out (step S85; Yes), the controller 110 stops the loading motor 24 (step S86), and the process proceeds to step S94.

On the other hand, if it is determined in step S82 that there is an eject command when the disc is not inserted (NODISC) (step S82; No), the loading switch SWA is turned off, that is, whether or not the disc is not inserted (NODISC). Is determined (step S87).
If it is determined in step S87 that the loading switch SWA is on, that is, if the disc is in the inserted state (step S87; No), the controller 110 shifts the process to step S82 again.
If it is determined in step S87 that the loading switch SWA is OFF, that is, the disk is not inserted (NODISC), the controller 110 determines whether the photo sensor is OFF or the 8 cm disk error detection flag is OFF (step S87). S88).

If it is determined in step S88 that either the photosensor or the 8 cm disc erroneous detection flag is on (step S88; No), the controller 110 proceeds to step S84.
If it is determined in step S88 that the photo sensor is off or the 8 cm disc erroneous detection flag is off, a 500 msec timer is set (step S89).
Subsequently, the controller 110 determines whether or not the 500 msec timer has timed out (step S90). If the time has not timed out, the controller 110 enters a standby state.
If it is determined in step S90 that the 500 msec timer has timed out (step S90; Yes), the controller 110 sets a 2-second timer (step S91).

Subsequently, the controller 110 determines whether or not the 2-second timer has timed out (step S92), and enters a standby state if it has not timed out.
If it is determined in step S92 that the 2-second timer has timed out (step S92; Yes), the controller 110 stops the loading motor 24 (step S93), and the loading switch SWA is turned off, that is, the disk. It is determined whether or not it is in a non-insertion (NODISC) state (step S94).
If it is determined in step S94 that the loading switch SWA is on, that is, the disc is in the inserted state (step S87; No), the controller 110 determines that it is in the ejected state and ends the processing (step S98).
If it is determined in step S94 that the loading switch SWA is OFF, that is, the disk is not inserted (NODISC), the controller 110 determines whether the photo sensor is OFF or the 8 cm disk error detection flag is OFF (step S94). S95).

If it is determined in step S95 that either the photo sensor or the 8 cm disc erroneous detection flag is on (step S95; No), the controller 110 determines that the ejection state is set and ends the process (step S98). .
If it is determined in step S95 that the photo sensor is off or the 8 cm disc error detection flag is off, it is assumed that the disc is not inserted (NODISC) (step S96), and the disc diameter data is cleared and the process is terminated (step S96). Step S97).

FIG. 20 is a processing flowchart for ejecting an 8 cm disc.
First, the controller 110 sets a 5 sec timer (step S101).
Next, the loading motor 24 is rotated in the eject direction (step S102).
Next, the controller 110 determines whether or not the loading switch SWA is turned on by ejecting the disk and rotating the turn plate 62 (step S103).
If the loading switch SWA is off in step S103 (step S103; No), the controller 110 determines whether the 5 sec timer has timed out because the disc has not yet been ejected. (Step S104).

If it is determined in step S104 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S103 again and enters a standby state.
If it is determined in step S104 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S105).
If it is determined in step S103 that the loading switch SWA is on (step S103; Yes), since the disk is being ejected, the controller 110 determines whether the disk is ejected and the loading switch SWA is turned off. It is determined whether or not (step S106).

If it is determined in step S106 that the loading switch SWA is not turned off (step S106; No), the disk has not yet been ejected, so the controller 110 determines whether or not the 5 sec timer has timed out. It discriminate | determines (step S107).
If it is determined in step S107 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S106 again and enters a standby state.
If it is determined in step S104 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S108).
If it is determined in step S106 that the loading switch SWA is in the OFF state, that is, the disc is not inserted (NODISC), the controller 110 determines whether the photo sensor is OFF or the 8 cm disc erroneous detection flag is OFF ( Step S109).

If it is determined in step S109 that either the photosensor or the 8 cm disc erroneous detection flag is on (step S109; No), the controller 110 determines that the 5 sec timer has timed out because the disc has not yet been ejected. It is determined whether or not (step S110).
If it is determined in step S110 that the 5 sec timer has not yet timed out, the controller 110 proceeds to step S106 again and enters a standby state.
If it is determined in step S110 that the 5 sec timer has timed out, the controller 110 shifts the process to an eject retry process described later (step S111).
If it is determined in step S109 that the photo sensor is off or the 8 cm disc erroneous detection flag is off, a 4 sec timer is set (step S112), and the process proceeds to the above-described full ejection process (steps S81 to S98) ( Step S113).

Next, the eject retry process will be described.
FIG. 21 is a flowchart (No. 1) of an eject retry process for an 8 cm disc. FIG. 22 is a process flowchart (No. 2) of the eject retry process for the 8 cm disc.
When the process proceeds to the eject retry process, that is, when the disk ejection fails, the controller 110 sets a retry counter to a predetermined value (step S121). In this embodiment, the count value of the retry counter is set to 3. This corresponds to a retry count of 3 times.
Subsequently, the controller 110 performs a stop process of the loading motor 24 (step S122).

Subsequently, the controller 110 rotates the loading motor 24 in the loading direction (step S123).
Then, the controller 110 sets a 5 sec timer so as to secure a sufficient time for chucking the disk (step S124).
Subsequently, the controller 110 determines whether or not the chucking switch SWC is in an on state (step S125).
If it is determined in step S125 that the chucking switch SWC is in the OFF state (step S125; No), the controller 110 determines whether or not the 5 sec timer has timed out (step S126).
If it is determined in step S126 that the 5 sec timer has not yet timed out (step S126; No), the controller 110 proceeds to step S125 again.

If it is determined in step S126 that the 5 sec timer has timed out (step S126; Yes), the controller 110 shifts the processing to the above-described full ejection processing (steps S81 to S98) (step S127).
If it is determined in step S125 that the chucking switch SWC is on (step S125; Yes), the controller 110 waits for 300 msec (step S128), rotates the disk (step S129), and waits for 32 msec (step S125). Step S130).
Then, the controller 110 stops the disk rotation (step S131).
Next, the controller rotates the loading motor 24 in the eject direction to transport the disc in the eject direction (eject direction) (step S132).
Subsequently, the controller 110 sets a 5 sec timer (step S133).
Next, the controller 110 determines whether or not the disk is transported and the loading switch SWA is on (step S134).

If it is determined in step S134 that the loading switch SWA is in the OFF state (step S134; No), the controller 110 determines whether or not the 5 sec timer has timed out (step S135).
If it is determined in step S135 that the 5 sec timer has timed out (step S135; Yes), the controller 110 proceeds to step S146, which will be described later.
If it is determined in step S135 that the 5 sec timer has not yet timed out (step S135; No), the controller 110 proceeds to step 134 again.

If it is determined in step S134 that the loading switch SWA is on (step S134; Yes), the controller 110 determines whether or not the loading switch SWA is off, that is, whether the disk is not inserted (NODISC). (Step S136).
If it is determined in step S136 that the loading switch SWA is off (step S136; No), the controller 110 determines whether or not the 5 sec timer has timed out (step S137).
If it is determined in step S137 that the 5 sec timer has timed out (step S137; Yes), the controller 110 proceeds to step S146 described later.
If it is determined in step S137 that the 5 sec timer has not yet timed out (step S137; No), the controller 110 proceeds to step 136 again.

If it is determined in step S136 that the loading switch SWA is OFF, that is, the disk is not inserted (NODISC), the controller 110 determines whether the photo sensor is OFF or the 8 cm disk error detection flag is OFF (step S136). S138).
If it is determined in step S138 that the photo sensor is ON and the 8 cm disc error detection flag is ON, the controller 110 determines whether or not the 5 sec timer has timed out (step S139).
If it is determined in step S138 that the photo sensor is off or the 8 cm disc error detection flag is off, the controller 110 sets a 4 sec timer (step S140).
Subsequently, the controller 110 determines whether or not the 4 sec timer has timed out (step S141), and enters a standby state if it has not timed out.
If it is determined in step S141 that the 4 sec timer has timed out (step S141; Yes), the controller 110 stops the loading motor 24 and determines whether the photo sensor is off or the 8 cm disc erroneous detection flag is off. Is determined (step S143).

If it is determined in step S143 that either the photosensor or the 8 cm disc erroneous detection flag is on (step S143; No), the process is terminated.
If it is determined in step S143 that the photo sensor is off or the 8 cm disc erroneous detection flag is off, it is assumed that the disc is not inserted (NODISC) (step S144), the disc diameter data is cleared (step S145), and the processing is terminated. .
If it is determined in step S139 that the 5 sec timer has timed out, the controller 110 determines whether or not three retry processes have been completed (step S146).
If it is determined in step S146 that the retry process has not been completed three times (step S146; No), the process returns to step S122, and the same process is performed thereafter.
If it is determined in step S146 that the retry process has been completed three times (step S146; Yes), the loading motor 24 is stopped (step S147), the mechanical error flag is set (step S148), and the above-described full ejection is performed. The process proceeds to step S149.

As described above, according to the present embodiment, even when the ambient temperature of the disc player changes or the loading motor deteriorates with time, the position where re-insertion (reloading) is possible is almost constant. Thus, the disc can be ejected, and the user cannot easily remove the disc or the disc will not pop out more than necessary.
Although the above description has been for the playback apparatus, the present invention can also be applied to the recording / playback apparatus.
In the above description, only the case of the 8 cm disk and the 12 cm disk has been described, but the present invention can be applied to a disk having other dimensions by the same method. Further, the present invention can be similarly applied to a disc having three or more types of diameters.

1 is a perspective view showing an embodiment of a disc player according to the present invention. It is the perspective view which removed the upper chassis. It is a perspective view of a lower chassis. It is the perspective view of the left view which attached the drive unit to the lower chassis. It is the perspective view of the right view which attached the drive unit to the lower chassis. It is a perspective view which shows a pair of gate member. It is a perspective view which shows the state which opened a pair of gate member with a 12 cm disk. It is a perspective view which shows the state which opened a pair of gate member with the 8 cm disk. A is a perspective view of the upper chassis as viewed from the back side, and B is a view showing a vertical hole. It is sectional drawing at the time of inserting an 8 cm disc. It is a perspective view at the time of inserting an 8-cm disc. It is sectional drawing at the time of inserting a 12 cm disc. It is a perspective view at the time of inserting a 12 cm disc. It is a block diagram of a control system. It is a processing flowchart at the time of ejection of a 12 cm disc. It is a process flowchart (the 1) of the eject retry process of a 12 cm disk. It is a process flowchart (the 2) of the eject retry process of a 12 cm disk. It is a process flowchart (the 1) of a full eject process. It is a process flowchart (the 2) of a full eject process. It is a process flowchart at the time of ejection of an 8 cm disc. It is a process flowchart (the 1) of the ejection retry process of an 8 cm disk. It is a process flowchart (the 2) of the eject retry process of an 8 cm disk.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 3 Chassis 5 Lower chassis 7 Upper chassis 23 Insertion slot 59 Gate member 62,63 Turn plate 62X Protrusion part 62Y Sliding part 64,65 Pin (support member)
67, 68 Gate pin 73 Connecting plate 74, 75 Guide hole 76, 77 Guide portion 81, 82 Guide bar 83, 85 Disc contact portion 100, 200 Disc 107A, 170B Arc groove 110 Controller (disc diameter discriminating portion)
SWA loading switch (first detector, mechanical switch)
SWB reloading switch (second detector, mechanical switch)
SWC chucking switch RK1, RK2 Loading path

Claims (6)

In a disc player that loads and plays the disc inserted into the insertion slot inside the main body,
A transport unit having a transport motor for ejection and transporting the disc;
An ejection speed detection unit that detects a disk conveyance speed when the disk is ejected to a position where the disk can be reloaded by the conveyance unit;
Based on the detected disk transport speed, a transport time setting unit for calculating and setting the transport time when transporting the disk to the reloadable position;
A drive control unit that controls the drive time of the ejection transport motor according to the set transport time;
A disc player comprising: The disc player according to claim 1, wherein
The disc player is characterized in that the ejecting speed detecting unit detects the ejecting speed based on a time for transporting the disc over a predetermined distance. The disc player according to claim 1 or 2,
A loading position detector for detecting a loading completion position of the disc;
A reload position detector that detects that the disk is positioned in the vicinity of the reloadable position;
The ejection speed detection unit calculates the disk conveyance speed based on a time from when the disk is detected by the loading position detection unit to when the disk is detected by the reload position detection unit. Disc player to play. The disc player according to any one of claims 1 to 3,
The disc player according to claim 1, wherein the transport time setting unit calculates the transport time as a function of a time required for ejecting the disc to a position where the disc can be reloaded by the transport unit. In a control method of a disc player having an ejection transport motor and loading and playing a disc inserted into an insertion slot inside the main body,
A transport process for transporting the disk by the eject transport motor;
An ejection speed detection process for detecting a disk transport speed when ejecting the disk to a position where the disk can be reloaded in the transport process;
A transport time setting process unit for calculating and setting a transport time when transporting the disk to the reloadable position based on the detected disk transport speed;
A drive control process for controlling the drive time of the ejection transport motor according to the set transport time;
A control method for a disc player, comprising: . In a control program for controlling by a computer a disc player that has an ejecting conveyance motor and loads and reproduces a disc inserted into an insertion slot inside the main body.
The disc is transported by the ejection transport motor,
Let the disc transport speed be detected when ejecting the disc to a reloadable position,
Based on the detected disc transport speed, the transport time for transporting the disc to the reloadable position is calculated and set,
Controlling the drive time of the ejection transport motor according to the set transport time;
A control program characterized by that.

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