JP5138272B2 - Disk unit - Google Patents

Description

  The present invention relates to a slot-in type disk device for inserting a disk from an insertion slot, and in particular, can detect whether the disk is normally loaded and held in a rotation drive unit, and the disk is ejected when the disk is ejected. The present invention relates to a disk device provided with a detection unit that can detect whether or not has reached the unloading completion position.

  A slot-in type disk device for in-vehicle use has a slit-shaped insertion opening at the front surface of a housing, and a disk such as a CD (compact disk) is inserted one by one from the insertion opening. A transport mechanism having a transport roller is provided inside the housing, and the disc inserted from the insertion port is carried toward the rotation drive unit provided in the housing by the transport mechanism.

  In this type of disk device, a detection unit composed of a plurality of optical detectors and the like is provided inside an insertion port in the housing. The disc inserted from the insertion slot is detected by the detection unit, and the transport mechanism is started based on this detection operation. Further, when the disc is carried in by the transport mechanism, it is determined whether or not a disc having a normal size has been normally carried in based on detection operations of a plurality of optical detectors and the like. Further, a loading completion detection unit for detecting the completion of loading is provided in the housing, and the loading operation by the conveyance mechanism is stopped when it is detected that the disk has been loaded to a position that can be held by the rotation driving unit.

  Further, when the disk is unloaded, the transport mechanism is detected when the ejection state of the disk is detected based on the detection operation of the detection unit, and the disk reaches the unloading completion position where a part of the disk projects from the insertion port. The carry-out operation by is stopped.

  Since this type of slot-in type disk device has a structure that can be accessed only from the insertion slot into the housing, the disk can be normally loaded based on the detection operations of a plurality of optical detectors provided in the detection unit. It is necessary to determine whether or not a foreign material other than a disk having a diameter smaller than the standard or a card-like disk is inserted and be sure to eject it from the insertion slot.

  However, when the disc is ejected by the transport mechanism, the disc or foreign object is inserted when the disc is quickly pushed into the housing by hand, or when the power is turned off and the detector is not functioning. For example, when it is forcibly pushed from the mouth, it is impossible to determine whether a disk or a foreign object exists in the housing when the operation is started thereafter. In such a case, there is a possibility that even if the ejection operation is performed, the transport mechanism does not start, or even if the transport mechanism is started, it becomes impossible to control and the discharge operation cannot be stopped automatically. .

  Or, when a normal disk is normally loaded and loaded in the rotation drive unit, if the optical detector of the detection unit suddenly fails and becomes inoperable, an eject operation is performed and the disk is ejected. When trying to do so, the ejecting operation becomes uncontrollable, and the disc cannot be stopped accurately at the unloading completion position.

  In the following Patent Document 1, when the ejection operation of the disc becomes uncontrollable, if the eject operation button is kept pressed, the transport mechanism continuously operates during that time, and the disc or the like is ejected from the insertion slot. A disk device capable of this is disclosed.

Further, in Patent Document 2 below, when ejecting a disk having a smaller diameter than the standard or a foreign object other than the disk from the inside of the housing, when the ejection amount from the insertion port is too short, the eject operation button is kept pressed, Further, a disc device is disclosed in which the operation of the transport mechanism is continued to eject the disc or foreign matter from the insertion slot.
JP 2000-090529 A JP 2000-315347 A

  However, in the disk devices described in Patent Document 1 and Patent Document 2, it is necessary to keep pressing the eject operation button when ejecting a disk or a foreign object from the housing. Therefore, the operation continues with one hand until the disc and foreign matter are completely ejected, and the operation becomes complicated. Also, it is dangerous for operations while driving.

  The present invention solves the above-described conventional problems, and recognizes that an operator is in an abnormal operation state when a disk or a foreign object is ejected from the housing in a state where a normal detection operation is not performed. An object of the present invention is to provide a disk device that is easy to remove and easily removes a disk protruding from an insertion port or a foreign object by hand.

The present invention includes a housing having an insertion slot, a transport mechanism that transports a disk inserted from the insertion slot, and a disk that holds the center of the disk that has been loaded by the transport mechanism and moved to a loading completion position. A rotation drive unit that rotates, and is disposed between the insertion slot and the rotation drive unit, and enters a detection state when a regular disk is in the loading completion position, and a part of the regular disk protrudes from the insertion slot. A detector that is in a non-detection state when in the unloading completion position,
A control unit that stops the unloading operation when the detector shifts from a detection state to a non-detection state when the disk in the housing is ejected by the unloading operation of the transport mechanism;
The control unit starts measuring a predetermined total time of discharge processing when the detector recognizes that the detector is in a failure state where normal detection operation cannot be performed and when there is a discharge request. In addition, the transport mechanism is intermittently operated in the discharge direction until the total time elapses .

The present invention also includes a housing having an insertion slot, a transport mechanism that transports a disk inserted from the insertion slot, and a center portion of the disk that has been loaded by the transport mechanism and moved to the loading completion position. A rotation drive unit that rotates the disk, a plurality of detectors disposed between the insertion port and the rotation drive unit , and a control unit,
The control unit determines whether the normal disk is normally loaded or the other abnormal loading operation according to the order in which the plurality of detectors are switched from the non-detection state to the detection state, and the abnormal loading operation is performed. When it is determined that, the transfer mechanism forcibly ejects the disk by the transport mechanism,
During the forced discharge operation, when the optical detector for carrying out completion detection of the plurality of detectors is in a non-detection state, the operation of the transport mechanism is stopped, and then it is determined that there has been a discharge request . Measurement of a predetermined total time of the discharge process is started, and the transport mechanism is intermittently operated in the discharge direction until the total time elapses .

In the disk device of the present invention, when the disk or foreign matter cannot be controlled to stop at the unloading completion position, the disk or foreign matter is ejected from the insertion slot by an intermittent operation. Since the disc and the foreign matter are ejected over time, the operator can easily recognize the abnormal ejection operation and remove the disc and the foreign matter before dropping from the insertion slot.

  Further, according to the present invention, the continuous discharging operation is performed until the middle of the discharging operation, and can be switched from the middle to the intermittent discharging operation. Alternatively, the pause time of the intermittent discharge operation becomes longer from the middle of the discharge operation. Alternatively, the driving time of the intermittent discharging operation is shortened from the middle of the discharging operation.

  By performing the above-described discharge control, it is possible to discharge the disc and the foreign matter from the insertion port over time, and it is easy to remove the disc and the foreign matter that are being discharged by hand.

  In the present invention, when a disc or a foreign object is ejected in a state in which the detection unit provided in the housing cannot be controlled normally, these are ejected from the insertion slot over time. It can be removed by hand before falling out of the mouth.

  FIG. 1 is a plan view showing an outline of a disk device according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing transition of detection operation of a detection unit. 3 to 8 are flowcharts showing the detection operation of the detection unit.

  The disk device 1 shown in FIG. 1 is for in-vehicle use, and has a hexahedral box-shaped housing 2. The housing 2 is embedded in an instrument panel in the interior of the automobile, and a decorative panel portion (not shown) provided on the front surface 3 of the housing 2 appears on the instrument panel. The decorative panel portion and the front surface 3 have slit-like insertion openings extending in the left-right direction (X1-X2 direction). In FIG. 1, a center line extending in the front-rear direction (Y1-Y2 direction) of the housing 1 by dividing the insertion slot in the left-right direction is indicated by O-O.

  A rotation drive unit 4 is provided inside the housing 2. The rotation drive unit 4 includes a spindle motor having a rotation shaft 5 and a turntable 6 fixed to the tip of the rotation shaft 5. The turntable 6 has a support surface 6a on which the lower surface of the disc D is installed, and a convex portion 6b that protrudes from the center portion of the support surface 6a and is fitted into the center hole Da of the disc D. In addition, the rotation drive unit 4 is provided with a clamper (not shown) that presses the lower surface of the disk D against the support surface 6a in a state where the convex portion 6b is fitted in the center hole Da.

  Further, inside the housing 2, the signal recorded on the recording surface of the disk D is read or the signal is recorded on the recording surface with the central hole Da facing the lower surface of the disk D clamped to the rotary table 6. An optical head (not shown) is provided.

  A transport mechanism 7 is provided inside the front surface 3 of the housing 2. The transport mechanism 7 is provided with a roller shaft 8 whose axial direction extends in the left-right direction (X1-X2 direction) and a synthetic rubber transport roller 9 mounted on the outer periphery of the roller shaft 5. A conveyance motor M is provided inside the housing 2, and the roller shaft 8 and the conveyance roller 9 are rotated in the disk loading direction and the unloading direction by the power of the conveyance motor M. The transport mechanism 7 is provided with a synthetic resin sliding pad facing the transport roller 9, and the transport roller 9 is urged by an elastic member and is elastically pressed against the sliding pad. The disc D inserted from the insertion port is sandwiched between the transport roller 9 and the sliding pad and is transported by the rotational force of the transport roller 9.

  An insertion side detection unit 10 is provided between the front surface 3 of the housing 2 and the transport mechanism 7. In the insertion side detection unit 10, optical detectors 11A, 11B, 11C, and 11D are provided at four locations. In each of the optical detectors 11A, 11B, 11C, and 11D, a light-emitting element such as a light-emitting diode is disposed on one side of the loaded disk D, and a light-receiving element such as a phototransistor is disposed on the other side. When the disk D does not exist between the light emitting element and the light receiving element, the light emitted from the light emitting element is detected by the light receiving element, and the detection output of the light receiving element is turned ON, and the light emitting element and the light receiving element are turned on. If the disk D exists between them, the light emitted from the light emitting element is blocked by the disk D, and the detection output of the light receiving element is turned OFF.

  That is, each of the optical detectors 11A, 11B, 11C, and 11D is in the “non-detection state” when the detection output from the light receiving element is ON, and is in the “detection state” when the detection output from the light receiving element is OFF. It is.

  In the insertion side detection unit 10, the optical detector 11A and the optical detector 11C are located on the X1 side from the center line OO, and the optical detector 11B and the optical detector 11D are X2 from the center line OO. Located on the side. The optical detector 11A is located closest to the front surface 3, the optical detector 11B is disposed on the far side (Y1 side), and the optical detector 11C is disposed on the far side. The optical detector 11D is disposed in the front.

  The distance in the left-right direction (X1-X2 direction) between the optical detector 11C located on the most X1 side and the optical detector 11D located on the most X2 side is set to 12 cm or less and longer than 8 cm. ing.

  Further, when the center hole Da of the normal disk D having a diameter of 12 cm is normally loaded on the rotary table 6, each of the optical detectors 11A, 11B, 11C, and 11D is more than the outer peripheral edge of the disk D. It is on the inner side and faces the outer periphery of the disk D. If a disk having a diameter of 8 cm is held on the rotary table, all of the optical detectors 11A, 11B, 11C, and 11D are detached from the disk.

  A loading completion detection unit 12 is provided inside the housing 2. The loading completion detection unit 12 includes a detection lever 13 that is pushed by the outer peripheral edge on the Y1 side of the disk D when the center hole Da of a normal disk D having a diameter of 12 cm is normally loaded on the rotary table 6. The switch 14 is turned on by the detection lever 13. Note that the loading completion detection unit may operate by combining a plurality of detection levers and detection sliders operated by the disk D, and the switch may be switched ON or OFF.

  In addition, a thread mechanism that moves the optical head along the lower surface of the disk D and the roller shaft 8 are driven by the same transport motor M. In this mechanism, a switch is provided to detect the position of the optical head when the disk D moves to a normal loading position and then the thread mechanism operates to bring the optical head closest to the rotary table 6. When the switch is operated, it is determined that the normal loading of the disk D has been completed.

  The detection outputs of the optical detectors 11A, 11B, 11C, and 11D provided in the insertion side detection unit 10 are detected by a detection unit (detection circuit) 22, and a control unit 21 having a CPU as a main body and a memory or the like. Given to. A detection output from the loading completion detection unit 12 is also given to the control unit 21. The transport motor M is driven and controlled by the control unit 21.

  Next, a detection operation when the disk D is carried in and a detection operation when the disk is carried out will be described.

  In this disk device 1, when a disk D such as a CD (compact disk), DVD (digital versatile disk) or CD-ROM having a diameter of 12 cm is inserted, the disk D is loaded and the rotary table 6. To be clamped. However, when other small-diameter discs having a diameter of 8 cm, for example, are inserted, it is determined that the foreign material is a foreign object and is discharged.

  In the control unit 21, it is determined whether or not a normal disk D is normally loaded by transition of changes in detection outputs of the optical detectors 11 </ b> A, 11 </ b> B, 11 </ b> C, and 11 </ b> D in the insertion side detection unit 10. FIG. 2 illustrates the transition of the detection output of each of the optical detectors 11A, 11B, 11C, and 11D when a normal disk D having a diameter of 12 cm is carried in. In FIG. 2, the arrangement of the optical detectors 11A, 11B, 11C, and 11D is schematically shown, and the “detection state” optical detectors that detect the disks are hatched.

  As shown in FIG. 2, when a normal disk D having a diameter of 12 cm is normally loaded by the transport mechanism 7 and the center hole Da of the disk D is loaded on the rotary table 6, the optical detectors 11A, 11A, The combination of detection outputs 11B, 11C, and 11D transitions in the order of “level (0)”, “level (1)”, “level (2)”, “level (3)”, and “level (4)”.

  “Level (0)” is a state in which the disk D has not yet been inserted from the insertion slot, and all the optical detectors 11A, 11B, 11C, and 11D are in the “non-detection state”.

  At “level (1)”, either the optical detector 11A or the optical detector 11B switches from the “non-detection state” to the “detection state”. When this "level (1)" is reached, the control unit 21 determines that the disk D has been inserted, starts the transport motor M, and rotates the roller shaft 8 and the transport roller 9 in the direction in which the disk D is loaded. It is done.

  There are only two kinds of judgments as “level (1)”, and after “level (0)”, only the optical detector C becomes “detection state”, or only the optical detector 11D. Is in the “detected state”, it is determined as “loading abnormality” at that time.

  At “level (2)”, both the optical detector 11A and the optical detector 11B are in the “detection state”. Alternatively, both the optical detector 11A and the optical detector 11C are in the “detection state”, or both the optical detector 11B and the optical detector 11D are in the “detection state”. There are only three kinds of judgments as “level (2)”, and only two of the optical detector 11A and the optical detector 11D are in the “detection state”, or the optical detector 11B and the optical detector. When only two of 11C are in the “detection state” or only two of the optical detector 11C and the optical detector 11D are both in the “detection state”, “loading abnormality” is indicated at that time. to decide.

  At “level (3)”, the optical detector 11A, the optical detector 11B, and the optical detector 11C are in the “detection state”. Alternatively, the optical detector 11A, the optical detector 11B, and the optical detector 11D are in the “detection state”. It is only these two ways that are determined as “level (3)”, and when only three of the optical detector 11C, the optical detector 11D, and the optical detector 11A are in the “detection state”, or When only the three of the optical detector 11C, the optical detector 11D, and the optical detector 11B are in the “detection state”, it is determined that “loading abnormality” occurs at that time.

  At “level (4)”, all of the optical detectors 11A, 11B, 11C, and 11D are simultaneously in the “detection state”.

  In the control unit 21, combinations of detection outputs of the optical detectors 11 </ b> A, 11 </ b> B, 11 </ b> C, and 11 </ b> D of the insertion side detection unit 10 are “level (0)”, “level (1)”, “level (2)”, “level (3 ) "" Level (4) "When the transition is made, it is determined that a normal disk D having a diameter of 12 cm is normally loaded. When the combination of detection outputs does not change in the above order, for example, when the level jumps from “level (1)” to “level (3)” or returns from “level (3)” to “level (2)” When it is closed, it is determined as “abnormal loading” at that time.

  The combination of the detection outputs of the optical detectors 11A, 11B, 11C, and 11D changes in the order of “level (0)”, “level (1)”, “level (2)”, and “level (3)”, and “level (4) Further, when the loading completion detection unit 12 detects that the disk D is normally loaded on the rotary table 6, the control unit 21 determines that “normal loading operation is completed”.

  The flowchart of FIG. 3 describes the disk loading operation in more detail, and FIG. 4 illustrates the disk loading operation in more detail. In the following flowchart, each step is indicated by a symbol “ST”.

  In each of the optical detectors 11A, 11B, 11C, and 11D of the insertion side detection unit 10, the light emitting element is always lit, but the detection output of the light receiving element is intermittently read out at a constant period in the control unit 21. . At this time, detection outputs of all the optical detectors 11A, 11B, 11C, and 11D are simultaneously acquired by the control unit 21. In FIG. 3, the period of intermittent acquisition (monitoring) of the detection output of the light receiving element is indicated by Ta. This period Ta is about 5 to 15 (msec), for example, 8 (msec).

  In the carry-in operation shown in FIG. 3, when the carry motor M starts and the roller shaft 8 and the carry roller 9 start rotating in ST1 (step 1) and the carry-in operation is started, in ST2, the inside of the control unit 21 is started. A timer is started.

  In ST3, when it is not yet determined that “normal carry-in operation is completed”, detection outputs are obtained (monitored) from the light receiving elements of all the optical detectors 11A, 11B, 11C, and 11D of the insertion side detection unit 10 in ST4. Then, it is determined whether or not the detection output has transitioned in the order of “level (1)”, “level (2)”, “level (3)”, and “level (4)” shown in FIG. When the detection output transitions in the normal order, it is determined that the normal carry-in operation is continued, and the detection output is “level (1)” “level (2)” “level (3)” “level ( 4) When the transition is not performed in the order of “”, it is determined as “loading abnormality” as described above.

  In ST4, when it is not determined as “abnormal carry-in”, the operation returns to ST3 and continues the carry-in operation until it is determined that “normal carry-in operation is completed”. When it is determined in ST4 that the “loading abnormality” is detected, in ST5, a time of Ta (msec) that is a detection output acquisition period (monitoring period) from the insertion-side detection unit 10 is released, and then in ST6, the insertion side It is determined whether or not the detection output from the detection unit 10 is “loading abnormality”. From ST4 to ST10, with a Ta (msec) period, the detection output from the insertion side detection unit 10 is acquired four times, and if it is determined that there is a continuous “loading abnormality” after four acquisitions, In ST11, it is determined that “abnormality detection is confirmed”. If it is determined that “abnormality detection is confirmed”, the process proceeds to ST12, the transport motor M is stopped, and the carry-in operation is stopped.

  If any of the four detection outputs of ST4, ST6, ST8, and ST10 determines that the normal carry-in operation is continued instead of the “load-in abnormality”, the carry-in operation is continued as it is. When it is determined that the “loading operation is complete”, that is, the detection output from the insertion side detection unit 10 transitions in the order of “level (1)” “level (2)” “level (3)” “level (4)”. When the loading completion detection unit 12 detects that the center hole Da of the disk D coincides with the center of the turntable 6, the process proceeds to ST12 and the loading operation is stopped.

Next, the processing operation of the carry-out process ST20 shown in FIG. 4 will be described.
In the unloading process ST20, the transport motor M is started in ST21, and the roller shaft 8 and the transport roller 9 are started in the direction of unloading the disc. In ST22, a timer is started. In ST23, detection outputs from the light receiving elements of the optical detectors 11A, 11B, 11C, and 11D of the carry-in side detection unit 10 are simultaneously acquired, and it is determined whether or not the disk D has reached a predetermined “unload completion position”. .

  As shown in FIG. 1, when a normal disk D having a diameter of 12 cm is normally loaded and is normally clamped on the rotary table 6, the detection output of the optical detector 11 </ b> D is always “detection state”. continue. In the unloading operation of the disk D, the control unit 21 determines that the disk D has moved to the “unloading completion position” when the optical detector 11D is switched from the “detected state” to the “non-detected state”. Alternatively, when the optical detector 11C is switched from the “detected state” to the “non-detected state”, or both the optical detector 11C and the optical detector 11D are switched from the “detected state” to the “non-detected state”. When changed, it may be determined that the disk D has reached the “unloading completion position”.

  When it is determined in ST23 of FIG. 4 that the disk D has been unloaded to the “unloading completion position”, a detection output is acquired again in ST24 after a predetermined period of time (monitoring period) Tb (msec). Then, it is determined whether or not the “unloading completion position” continues. In ST23 to ST27, the detection output from the insertion side detection unit 10 is acquired three times with a time of Tb (msec) that is an acquisition cycle. In all three acquisitions, when the “unload completion position” is continuous, it is determined that the disk D has reached the normal “unload completion position”. In ST28, the transport motor M is stopped, and the disk is D's carry-out operation is stopped.

  When the unloading operation is stopped in ST28, the end on the Y1 side of the disk D that has reached the “unloading completion position” is sandwiched between the stopped conveying roller 9 and the sliding pad, and the insertion slot It is possible to prevent the disk D protruding in the Y2 direction from being inadvertently dropped out.

  If it is determined that the “unload completion position” has not been reached at any of the three detection outputs of ST23, ST25, and ST27, the transport motor M is continuously driven and the disk D is unloaded. continue.

  Tb, which is the detection output acquisition period during the carry-out operation, is about 5 to 15 (msec), for example, 8 (msec), which is the same time as Ta.

  In the carry-in operation of FIG. 3, “abnormal detection” is detected only when it is determined that “carry-in abnormality” continuously at ST4 to ST10 at four detection output acquisition timings with a constant period Ta (msec). By determining “determined”, the probability of erroneously determining a normal disk normal loading operation as “abnormal loading” is reduced. Similarly, also in the unloading operation shown in FIG. 4, in ST23 to ST27, it was determined as the “unloading completion position” three times in succession at the acquisition timing of three detection outputs with a constant period Tb (msec). Occasionally, the unloading operation is stopped, so that it is difficult to cause a malfunction in which the unloading operation is erroneously stopped even though the disk D has not yet reached the “unloading completion position”.

  In this disk device 1, not only the normal disk D but also a foreign material such as a disk or card having a diameter too small is inserted from the insertion slot, and either the optical detector 11A or the optical detector 11B is in the “detection state”. Then, the “level (1)” shown in FIG. 2 is reached, the transport motor M is started, and the roller shaft 8 and the transport roller 9 start to rotate in the carry-in direction. Therefore, even a foreign object other than the normal disk D is sent into the housing 2 by the transport roller 9.

At this time, the detection outputs of the optical detectors 11A, 11B, 11C, and 11D of the insertion side detection unit 10 are “level (0)”, “level (1)”, “level (2)”, “level (3) shown in FIG. ) "" Level (4) "in order, and only when the loading completion detector 12 can detect the loading completion of the disk D, it is determined that the normal disk D has been normally loaded and loaded, When the detection state transition is other than that, it is determined as “ abnormality detection confirmed” based on the flowchart shown in FIG. 3 and discharged.

  However, in the middle of this ejection operation, a foreign object such as a small-diameter disk or card is forcibly pushed into the housing 2 by hand, and the optical detector 11D switches from the “detected state” to the “non-detected state”. In some cases, the control unit 21 recognizes that a normal disk has reached the “unloading completion position” despite the presence of foreign matter inside the housing 2. In this case, in the control unit 21, there is no flow for stopping all operations and then shifting to the discharge operation.

  This is the same when a disk D having a large damaged part in the periphery is inserted. In this case, it is determined that “abnormality detection has been confirmed” based on the flowchart of FIG. 3 and the disc is unloaded, but immediately after the unloading operation is started, the damaged portion reaches the position of the optical detector 11D and the optical detection is performed. When the container 11D enters the “non-detection state”, the control unit 21 recognizes that the disk has been normally unloaded and has reached the “unloading completion position” and stops the unloading operation.

  Also, if the optical detector 11D fails and the detection operation becomes impossible, the transition of the detection output shown in FIG. 2 cannot be obtained. However, only the output of the failed optical detector 11D is ignored at this time. It is also possible to accept the delivery of D. In this case, since the optical detector 11D cannot operate when the disc is ejected, the disc D cannot be stopped at the “unload completion position”.

  In this disk device 1, when the control for unloading the disk and stopping it at the “unloading completion position” cannot be performed normally, the transport mechanism 7 is intermittently operated in the ejection direction to slowly eject the disk and foreign matter. I try to let them. In this case, the disc and foreign matter cannot be stopped at the “unloading completion position”, but the disc or foreign matter is intermittently and slowly ejected from the insertion slot. Or foreign matter can be easily held and removed before dropping from the insertion slot.

FIG. 5 is a flowchart showing a control operation for shifting to intermittent discharge processing.
In the intermittent discharge process ST30, when an ejection request is issued by pressing an eject operation button provided in the operation unit in ST31, the control unit 21 performs optical detection for detecting completion of the disc ejection operation in ST32. It is confirmed whether or not the detector 11D recognizes a failure state. In ST32, when it is determined that the optical detector 11D is operating normally, the process proceeds to ST33 and it is confirmed whether or not a discharge operation different from normal is being performed. In this embodiment, if an eject operation button provided on the operation unit is kept pressed for a certain period of time (for example, 5 seconds or more or 10 seconds or more), it is recognized as a discharge operation different from the normal operation. If it is determined in ST33 that a discharge operation different from the normal operation has not been performed, the process proceeds to a normal carry-out operation in ST34.

  In the normal carrying-out operation of ST34, when it is not recognized that the detection output of the insertion-side detection unit 10 has reached “level (4)” in FIG. It is determined that it has not been carried out, and no carry-out operation is performed. Alternatively, the detection output of the optical detector 11D of FIG. 2 may be monitored, and it may be determined that there is no disk D to be carried out when the optical detector 11D is in the “non-detection state”.

  On the contrary, when the detection output of the insertion side detection unit 10 is “level (4)” in FIG. 2 or the optical detector 11D is in “detection state”, in ST34, the flowchart of FIG. Based on the above, a normal unloading process is performed, the disk D stops at the “unloading completion position”, and the unloading process stops in ST35.

  In ST32, when it is recognized that the optical detector 11D is in a failure state, the process proceeds to ST36, and after intermittent discharge processing is performed, the process ends in ST37. When the optical detector 11D and the like are operating normally and a discharge operation different from the normal operation is performed in ST33, the process proceeds to ST36, an intermittent discharge process is performed, and the process ends in ST37.

  Note that the “unusual ejection operation” in ST33 is set when the eject operation button is repeatedly pressed more than the specified number of times within a certain time, in addition to continuously pressing the eject operation button for a predetermined time or more. May be. Or, when the eject operation button and any of the other operation buttons are pressed together, or when a plurality of operation buttons other than the eject operation button are pressed together, “unusual discharge operation” It may be recognized that is set.

  FIG. 6 to FIG. 8 show flowcharts for executing the “intermittent discharge process” in ST36 of FIG. 5 according to the embodiment.

  When a request for intermittent discharge processing ST40 of the first embodiment shown in FIG. 6 is issued, time measurement by the discharge guard timer is started in ST41. This discharge guard timer determines the total time for intermittent discharge processing, and is sufficient for discharging foreign matter such as a disk or card inside the housing 2 from the insertion slot (for example, about 20 seconds to 1 minute). ) Is set.

  When the transport motor M is started in ST42 and the roller shaft 8 and the transport roller 9 start to rotate in the carry-out direction, at the same time, an operation timer for the transport motor M is started in ST43. This operation timer determines the time during which the transport motor M operates in the intermittent discharge process, and is set to about 0.5 to 5 seconds, for example.

  When the transport motor M operates, it is determined in ST44 whether or not the total time of the intermittent discharge process set by the discharge guard timer has elapsed. If it is determined in ST44 that the total time of the intermittent discharge process has not yet elapsed, the process proceeds to ST45, and it is determined whether or not the operation time of the transport motor M that has started measurement in ST43 has elapsed. If it is determined that the operation time has elapsed, the process proceeds to ST46 and the transport motor M is stopped. In ST47, a timer for determining the stop time (interruption time) of the conveyance motor M in the intermittent discharge process is started. This stop time is set to about 0.5 to 5 seconds, for example.

  In ST48, it is determined whether or not the total time of the intermittent discharge process has elapsed. If it is determined that it has not elapsed, the process proceeds to ST49. If it is determined in ST49 that the stop time (interruption time) of the conveyance motor M that has started measurement in ST47 has elapsed, the process returns to ST42.

  That is, the processing operation from ST42 to ST49 is repeated until the total time of the intermittent discharge processing for which the measurement is started in ST41, and the transport motor M repeats the operation and the stop (interruption). Therefore, the disk and the foreign material in the housing 2 are intermittently sent out from the insertion opening little by little. The operator can recognize that it is not a normal ejection process by looking at a disc or foreign matter that protrudes little by little intermittently from the insertion slot. In the intermittent discharge process, the disc and foreign matter are automatically and intermittently discharged, so there is no need to keep pressing the eject operation button or the like, and it is safe even during operation. And it becomes easy to remove the disk and foreign material discharged slowly before dropping from the insertion slot.

  In ST44 or ST48 of FIG. 6, when it is determined that the total time of the intermittent discharge process started in ST41 has elapsed, the process proceeds to ST50, the transport motor M is stopped, and the intermittent discharge process is ended in ST51. .

  The intermittent discharge process ST60 of the second embodiment shown in FIG. 7 includes the same operation processes ST42 to ST51 as the intermittent discharge process 40 of the first embodiment shown in FIG.

  In the intermittent discharge process ST60 shown in FIG. 7, time measurement by the discharge guard timer is started in ST61. This discharge guard timer determines the total time of intermittent discharge processing and corresponds to the processing in ST41 of FIG. In ST62, the continuous operation of the transport motor M is started, the roller shaft 8 and the transport motor M are continuously rotated in the ejection direction, and are continuously sent out toward the disk, foreign matter, and insertion port. At the same time, in ST63, measurement of the continuous operation time of the transport motor M is started. When the continuous operation time of the transport motor M has elapsed in ST64, the process proceeds to the intermittent discharge process of ST42 to ST51.

  In the intermittent discharge process shown in FIG. 7, first, the disc and foreign matter are continuously carried out by the conveying roller 9, and after the disc and foreign matter approach the insertion port, the operation moves to an intermittent carry-out operation. By shortening the time until the disk or foreign material starts to come out from the insertion slot after the ejection operation, it is possible to know early that the disk or foreign material in the housing 2 has been ejected, and thereafter Since it is slowly discharged by intermittent discharge, it is easy to hold the disk or foreign matter by hand and take it out.

  The intermittent discharge process ST70 of the third embodiment shown in FIG. 8 includes the same processes shown in ST41 to ST51 as the intermittent discharge process of the first embodiment shown in FIG.

  In the intermittent discharge process ST70 shown in FIG. 8, a process for shortening the measurement time of the operation timer of the motor M is provided as ST71 after ST43. Further, after ST47, as ST72, a process for extending the measurement time of the stop timer is provided.

  In the intermittent discharge process ST70 shown in FIG. 8, as the intermittent operation of the transport motor M is continued, the operation time of the motor M is gradually shortened and the stop time (interruption time) of the motor M is gradually increased. Therefore, the disc and the foreign matter are ejected so that they protrude slightly and are interrupted for a long time as the amount of protrusion from the insertion opening increases. Therefore, it can stay for a long time in the vicinity of the insertion port, and can be prevented from falling from the insertion port as much as possible.

  In the intermittent discharge process shown in FIG. 7, during the subsequent intermittent discharge process, as shown in FIG. 8, the operation time of the carry motor M is gradually shortened and the stop time of the carry motor M is gradually lengthened. Processing may be performed.

  In the process of FIG. 8, only ST71 is provided and the stop time (interruption time) of the transport motor M is uniform, but the operation time of the transport motor M is controlled to be gradually shortened, or only ST72 is provided. The operation time of the transport motor M is uniform, but the stop time (interruption time) of the transport motor M may be controlled to be gradually increased.

The top view which shows the outline | summary of the disc apparatus of embodiment of this invention, Explanatory drawing of the detection operation by the optical detector provided in the insertion side detection part, A flowchart showing the operation process at the time of disc loading, A flowchart showing an operation process at the time of carrying out the disk; A flowchart showing an operation process for shifting to an intermittent discharge process; The flowchart which shows the intermittent discharge process of 1st Embodiment, The flowchart which shows the intermittent discharge process of 2nd Embodiment, The flowchart which shows the intermittent discharge process of 3rd Embodiment,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Case 3 Front surface 4 Rotation drive part 6 Rotary table 7 Conveyance mechanism 8 Roller shaft 9 Conveyance roller 10 Insertion side detection part 11A, 11B, 11C, 11D Optical detector 12 Conveyance completion detection part 21 Control part D Disk

Claims (6)

A casing having an insertion slot, a conveyance mechanism for conveying a disk inserted from the insertion slot, and a rotational drive for rotating the disk while holding the central portion of the disk loaded by the conveyance mechanism and moved to the loading completion position And an unloading completion position where a regular disk is placed between the insertion port and the rotation driving unit and is in a detection state when a regular disk is in the loading completion position, and a part of the regular disk protrudes from the insertion port. A detector that is in a non-detection state when
A control unit that stops the unloading operation when the detector shifts from a detection state to a non-detection state when the disk in the housing is ejected by the unloading operation of the transport mechanism;
The control unit starts measuring a predetermined total time of discharge processing when the detector recognizes that the detector is in a failure state where normal detection operation cannot be performed and when there is a discharge request. And the disk drive is operated intermittently in the ejection direction until the total time has elapsed . A casing having an insertion slot, a conveyance mechanism for conveying a disk inserted from the insertion slot, and a rotational drive for rotating the disk while holding the central portion of the disk loaded by the conveyance mechanism and moved to the loading completion position Part, a plurality of detectors arranged between the insertion port and the rotation drive unit , and a control unit,
The control unit determines whether the normal disk is normally loaded or the other abnormal loading operation according to the order in which the plurality of detectors are switched from the non-detection state to the detection state, and the abnormal loading operation is performed. When it is determined that, the transfer mechanism forcibly ejects the disk by the transport mechanism,
During the forced discharge operation, when the optical detector for carrying out completion detection of the plurality of detectors is in a non-detection state, the operation of the transport mechanism is stopped, and then it is determined that there has been a discharge request . start the predetermined and are discharge process total time measurement, until the total time has elapsed, the disk apparatus characterized by causing operating intermittently said transport mechanism to the discharge direction. 3. The disk device according to claim 1, wherein when an operation different from a normal eject operation is performed, it is determined that the ejection request has been made. Continuous discharge operation up to the middle of the discharge operation is performed, the disk apparatus according to any one of 3 claims 1 is switched to the intermittent discharge operation from the middle. 4. The disk device according to claim 1, wherein a pause time of the intermittent ejection operation becomes longer from the middle of the ejection operation. 4. The disk device according to claim 1, wherein the driving time of the intermittent ejection operation becomes shorter from the middle of the ejection operation.

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