JP4327228B2 - Disc identification device, disc insertion / extraction device, and disc device - Google Patents

Description

  The present invention relates to a disk device, a disk identification device for identifying a disk inserted in the disk device, a disk insertion / ejection device for inserting and ejecting a disk, and an electronic device including the disk device.

  As shown in FIG. 28 and FIG. 29, a disk device such as an in-vehicle audio device having a conventional disk identification device has a gap between the upper and lower fixed disk guide members 30, 31, 32, and 33. It has a configuration that prevents the insertion of two discs into the apparatus by setting the thickness to be equal to or greater than the thickness of two and less than the thickness of two.

JP 2001-31850 A (FIGS. 7 and 9B)

  However, in the conventional disc apparatus, when two discs are inserted with a force greater than the proof strength of the upper and lower disc guide members, the upper and lower disc guide members are deformed or damaged, and the proof strength against the subsequent insertion of two discs is significantly reduced. At the same time, there are cases in which the inserted disc is damaged or scratched.

  The present invention has been made in view of the above circumstances, and electrically discriminates the number of discs inserted in the disc device, and controls the mechanism of the disc device based on the identification result to stably insert the disc. It is an object of the present invention to provide a disk device that can realize the elimination and reduce the damage of the disk device mechanism and the disk.

The disc identification device of the present invention is a disc identification device for discriminating a disc inserted into the disc device, which is movable in the thickness direction of the disc, contacts the upper or lower surface of the disc, and presses the disc The thickness detection member having a disk transport roller for transporting the disk, a disk position detection unit for detecting the thickness direction position of the thickness detection member, and the output of the disk position detection unit based on the output of the disk position detection unit Number discriminating means for discriminating whether one or a plurality of discs are inserted into the disc, and converting the displacement in the thickness direction of the disc transport roller into a displacement in a direction different from the thickness direction. And a first lever member that increases the displacement of the roller in the thickness direction and transmits it to the disk position detecting means.

With this configuration, by detecting the position of the member in contact with the disk inserted into the apparatus in the thickness direction of the disk, it is possible to electrically identify whether one or more disks are inserted into the apparatus, By controlling the mechanism based on the results, it is possible to achieve stable disk thickness detection and disk transport without being affected by the characteristics of the disk, such as light transmittance and light reflectance, and to reduce damage to the mechanism and disk . reduce the possibility of false detection of disc thickness detection by improving the detection sensitivity to the thickness of the inserted disk, Ru can be realized stable disc thickness detection.

In the disc identification device of the present invention, the first lever member increases by converting the displacement in the thickness direction of the disc transport roller into the displacement in the rotation direction of the transport roller .

In the disc identification device of the present invention, the disc position detecting means includes switch means whose state changes according to the position of the thickness detecting member, and the first lever member includes a shaft member serving as a rotation fulcrum. A groove engaging with the conveying roller and a switch contact portion provided so as to be able to contact the switch means, wherein a distance from the shaft member to the switch contact portion is larger than a distance from the shaft member to the groove. It is set.

Further, the disc identification device of the present invention includes a second lever member which is disposed on the near side in the disc insertion direction and moves by contacting the disc, and the number identification means includes the second lever member. Based on the movement timing, the number of inserted discs is identified.

  The disc insertion / ejection device of the present invention inserts and ejects the disc based on the identification result of the disc identification device. With this configuration, it is possible to prevent the stable insertion of two discs regardless of the types of discs inserted into the apparatus, the characteristics such as light transmittance and light reflectance, and the amount of deviation.

  Further, the disk insertion / ejection device of the present invention includes an apparatus having a disk conveyance path capable of inserting and ejecting a plurality of disks. With this configuration, even if a plurality of disks are forcibly pushed in, the apparatus and the disk are not damaged, so that stable disk insertion and removal can be realized, and damage to the mechanism and the disk can be reduced.

  The disk device of the present invention includes the above-described disk identification device and the above-described disk insertion / ejection device. With this configuration, it is possible to stably prevent two discs from being inserted regardless of the types of discs inserted into the apparatus, the characteristics such as light transmittance and light reflectivity, and the amount of deviation, and a plurality of discs. Since the device or the disk is not damaged even if it is forced to be pushed, stable disk insertion and removal can be realized, and damage to the mechanism and the disk can be reduced.

  According to the present invention, stable disc insertion / ejection can be realized by electrically identifying the number of discs inserted into the disc device and controlling the mechanism of the disc device based on the identification result. The damage of the mechanism and the disk can be reduced. Further, by improving the detection sensitivity for the thickness of the disc inserted in the apparatus, the possibility of erroneous detection of the disc thickness detection can be reduced, and stable disc thickness detection can be realized.

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

(First embodiment)
1 and 2 show a disk device according to a first embodiment of the present invention. FIG. 1 is a top view of the main part of the disk device according to the first embodiment of the present invention, FIG. 2 is a side view of the main part of the disk device according to the first embodiment of the present invention, and FIG. It is a front view of the disk apparatus principal part of embodiment. 1, 2, and 3, a disk insertion slot 100 a is disposed on the front surface of the housing 100.

  Near the disc insertion slot 100a of the housing 100 is a conveying means for contacting the inserted disc and transmitting power to convey the disc 300 and insert (load) and eject (eject) the disc 300. The constituting roller members 101 and 102 and a power source (not shown) for rotating the roller member 101 are provided. The roller member 102 rotates together with the roller member 101 when the disk 300 is inserted (loaded) and ejected (ejected).

  The roller member 101 is restricted from moving in the vertical direction (the direction of the drawing A or B) with respect to the housing 100. Further, the roller member 102 is movable in the vertical direction (direction A or B in the drawing) with respect to the housing 100, and the roller member is acted on by an elastic member (not shown) that urges the roller member 102. The reference numeral 102 is biased downward (direction B in the drawing) with respect to the housing 100.

  Therefore, when the disc 300 is inserted into the apparatus, the roller member 102 moves upward (direction A in the drawing A) with respect to the housing 100, and the disc 300 is pressed between the roller member 101 and the roller member 102. . The movable amount of the roller member 102 in the upward direction (the direction of the drawing A) is more than the moving amount when a plurality of discs (for example, two) are inserted, and a plurality of discs are inserted into the apparatus. Even in such a case, the roller member 101 and the roller member 102 are configured to be able to load and eject by pressing the disk rotatably. As described above, the roller member 102 functions as a thickness detection member that contacts the upper surface of the disk 300 and moves in the vertical direction (direction A or B in the drawing) with respect to the housing 100, that is, in the thickness direction of the disk 300.

  Further, in the vicinity of the disk insertion opening 100a of the housing 100, on the back side in the loading direction from the roller members 101 and 102, there is a shaft portion 103a that contacts the outer periphery of the disk 300 when the disk 300 is inserted into the disk device. A lever member 103 having a shaft portion 104a that comes into contact with the outer periphery of the disc 300 when the disc 300 is inserted into the disc device is provided.

  The lever member 103 and the lever member 104 are provided so as to be slidable in the left-right direction (the C direction and the D direction in the drawing) with respect to the housing 100. Between the lever member 103 and the lever member 104, the lever member 103 and the lever are provided. An elastic member (not shown) that urges the member 104 toward the center of the disc insertion slot is provided. Therefore, in a state in which no disc is inserted into the apparatus, the lever member 103 and the lever member 104 come into contact with a stopper portion (not shown) provided in the housing 100 and the two lever members 103 and 104 are in an initial state. Held in position.

  Further, a position sensor 105 having a protrusion 105a and a position sensor 106 having a protrusion 106a are provided in the vicinity of the disc insertion slot 100a of the housing 100. The projection 105 a of the position sensor 105 is engaged with the groove 103 b of the lever member 103, and the position sensor 105 can detect the displacement of the lever member 103 in the left and right direction (C direction and D direction in the drawing). Similarly, the protrusion 106 a of the position sensor 106 is engaged with the groove 104 b of the lever member 104, and the position sensor 106 can detect the displacement of the lever member 104 in the left and right direction (C direction and D direction in the drawing). Yes.

  Further, a light emitting element 107 and a light receiving element 108 paired with the light emitting element 107 are provided in the vicinity of the disk insertion opening 100a of the housing 100. When a disk is inserted into the apparatus, the light emitting element 107 is provided. The light emitted from the light is blocked by the disk, and the output of the light receiving element 108 changes to Hi so that the insertion of the disk into the apparatus can be detected. The light receiving element 108 outputs Hi when it is shielded from light, and outputs Lo when it is receiving light.

  Further, a lever switch 109 and a push switch 110 whose state changes according to the position of the lever member 109 are provided near the disc insertion slot 100 a of the housing 100. The lever member 109 is provided with a shaft member 109a, a groove 109b, a switch contact portion 109c, and a stopper contact portion 109d. The lever member 109 is disposed so as to be rotatable about the shaft member 109 a with respect to the housing 100. A lever engaging portion 102a provided on the roller member 102 is engaged with the groove 109b of the lever member 109. When the roller member 102 moves upward (direction A in the drawing), the lever member 109 moves in the direction H in the drawing. It is configured to rotate. The casing 100 is provided with an elastic member (not shown) that urges the lever member 109 in the direction G in the drawing G. When the disk 300 is not inserted in the apparatus, the lever member 109 is The provided stopper contact portion 109d comes into contact with the stopper portion 100b provided in the housing 100, and the lever member 109 is held at the initial position.

  Therefore, when the disc 300 is inserted, the roller member 102 moves in contact with the disc 300, and the lever member 109 rotates according to the movement of the roller member 102. Since the state of the push switch 110 changes according to the amount of rotation of the lever member 109, an electrical signal corresponding to the position of the inserted disk can be obtained. The lever member 109 increases the displacement of the roller member 102 in the upward direction (direction A in the drawing A) by making the distance from the shaft member 109a serving as the rotation fulcrum to the switch contact portion 109c larger than the distance from the shaft member 109a to the groove 109b. Configured to improve the detection accuracy of whether one disc has been inserted due to variations in the thickness of the disc inserted into the apparatus, or whether a plurality of discs (for example, two discs) have been inserted. Has been.

  When the disc 300 is not inserted into the apparatus or when one disc 300 is pressed between the roller member 101 and the roller member 102, the switch contact portion 109c provided on the lever member 109 is pushed by the push switch 110. Since the output of the push switch 110 remains Hi, the switch contact provided on the lever member 109 when a plurality of (for example, two) disks are pressed between the roller member 101 and the roller member 102 is not touched. Since the part 109c contacts the push switch 110, the output of the push switch 110 is configured to indicate Lo. In this way, the thickness of the disc inserted in the apparatus can be detected by the output of the push switch 110.

  Further, the disk device includes a roller member 111 a that contacts the disk 300, a lever member 111 that is rotatably provided with a shaft member 100 c provided on the housing 100 as a fulcrum, and the lever member 111. A push switch 112 that detects the displacement of the lever member 111 by contacting the switch contact portion 111b and an elastic member 112 that urges the lever member 111 in the direction F in the drawing are provided. More specifically, the lever member 111 is biased in the direction of the drawing F by the elastic member 112 when the disk is not inserted into the disk device, and the roller member 111a of the lever member 111 is applied to the housing 100. The lever member 111 is held at the initial position by contacting the provided stopper portion 100d. At this time, the switch contact portion 111 b of the lever member 111 is not in contact with the push switch 113. When a disk is inserted into the disk device, the roller member 111a provided on the lever member 111 comes into contact with the disk, so that the lever member 111 rotates in the direction F in FIG. 111 b contacts the push switch 113. The push switch 113 outputs Hi when the disk is detected, and outputs Lo when the disk is not detected.

  The disc recording / reproducing unit 200 includes a spindle motor 201 for rotating the disc, an optical pickup 202 for recording / reproducing disc information, and a traverse motor 203 for driving the optical pickup 202 in the inner and outer circumferential directions of the disc. ing.

(1) Loading operation of the disc 300 First, the loading operation of the disc device with respect to the disc 300 will be described with reference to FIGS. 4, 5, 6, 7, 8, 9, 10, and 11. The disk device according to the present embodiment performs reproduction or recording by inserting and ejecting a 12 cm disk, but an 8 cm disk can also be handled. When reproducing or recording an 8 cm disc, an adapter that holds the 8 cm disc in the center is used. Since the adapter holding the 8 cm disc is handled in the same manner as the 12 cm disc 300, the description is omitted.

  When the disc 300 is inserted into the disc insertion slot 100a of the housing 100 provided in the disc device by the user, the light emitted from the light emitting element 107 is blocked by the disc 300, and the output of the light receiving element 108 becomes Hi. By changing, it is detected that the disc 300 is inserted into the disc device, and the disc device starts the operation of the power source and starts the rotation of the roller member 101 (see FIGS. 4 and 5).

  When the disc 300 is further inserted by the user, the disc 300 is pressed between the roller members 101 and 102, and auto loading of the disc 300 is started. Further, when the roller member 102 is displaced in the upward direction (direction A in the drawing), the lever member 109 has the shaft member 109a as a fulcrum due to the relationship between the lever engaging portion 102a of the roller member 102 and the groove 109b of the lever member 109. Rotate in the H direction. However, when one disk is inserted into the apparatus, the switch contact portion 109c of the lever member 109 and the push switch 110 do not contact each other, and the output of the push switch 110 remains Hi (see FIG. 6).

  When the auto loading of the disc 300 is continued, the disc 300 comes into contact with the shaft members 103a and 104a of the lever members 103 and 104, the lever member 103 starts to slide in the direction C, and the lever member 104 starts to slide in the direction D. To do. As a result, the output levels of the position sensors 105 and 106 are increased, and the output levels of the position sensors 105 and 106 are maximized while the maximum diameter portion of the disk 300 is in contact with the shaft members 103a and 104a (see FIG. 7). .

  When the disc 300 further advances, the disc 300 comes into contact with the roller member 111a of the lever member 111, and the lever member 111 starts to rotate in the direction of the drawing E against the urging force of the elastic member 112. Then, the lever member 111 rotates and the switch contact portion 111b of the lever member 111 comes into contact with the push switch 113, whereby the output of the push switch 113 changes from Hi to Lo (see FIG. 8).

  When the disk 300 further advances, the contact between the disk 300 and the shaft member 103a of the lever member 103 and the shaft member 104a of the lever member 104 is released, and the lever members 103 and 104 are held at the initial positions. Then, the output levels of the position sensors 105 and 106 also return to the initial positions (see FIG. 9).

  When the disc 300 further advances, the press of the disc 300 and the roller members 101 and 102 is released, and the disc 300 is moved in the recording / reproducing position direction by the action of the lever member 111 and the elastic member 112. Further, the engagement between the lever member 111 and the push switch 113 is released, and the output of the push switch 113 changes from Lo to Hi. The rotation of the roller member 101 is stopped by stopping the operation of a drive source (not shown) at the timing when the output of the push switch 113 changes to Hi.

  Next, the disc 300 is transported to a recording / reproducing position by the disc recording / reproducing unit 200 by a mechanism (not shown) and held on the spindle motor 201. With this operation, the loading operation of the disc 300 is completed, and the disc device becomes ready for recording and reproduction of the disc 300 (see FIG. 10).

  FIG. 11 shows the states of the position sensors 105 and 106, the light receiving element 108, and the push switches 110 and 113 during the above operation.

(2) Ejecting Operation of Disc 300 Next, the ejecting operation of the disc device with respect to the disc 300 will be described with reference to FIGS.

  First, the holding of the disk 300 on the spindle motor 201 is released by a mechanism not shown, and the ejection operation of the disk 300 is started.

  Next, the disc 300 is conveyed in the eject direction by a mechanism not shown, the disc 300 contacts the roller member 111a of the lever member 111, and the lever member 111 moves in the direction of the drawing E against the urging force of the elastic member 112. Start turning. Then, when the lever member 111 rotates and the switch contact portion 111b of the lever member 111 comes into contact with the push switch 113, the output of the push switch 113 changes from Hi to Lo. The rotation of the roller member 101 is started by starting the operation of a drive source (not shown) at the timing when the output of the push switch 113 changes to Hi (see FIG. 12).

  Further, when the disk 300 is transported by a mechanism (not shown), the disk 300 and the roller member 101 come into contact with each other and are pressed between the roller members 101 and 102 to start the disk transport by the roller member 101 of the disk 300. Is done.

  The disc 300 advances in the ejecting direction at a timing opposite to that at the time of loading, and the disc 300 is transported to the ejection completion position. Note that the completion of ejection of the disc 300 is detected by the light receiving element 108, the position sensors 105 and 106, or detection means (not shown) (see FIG. 13).

  With this operation, the ejection operation of the disc 300 is completed.

(3) Operation for Multiple Disks 300 Next, the operation of the disk device for multiple disks 300 will be described with reference to FIGS. 14, 15, 16, 17, and 18. FIG. Here, it is assumed that the two discs overlap each other with a slight shift and are inserted into the disc insertion slot 100a.

  When a plurality of discs 300 are inserted into the disc insertion slot 100a of the housing 100 provided in the disc device by the user, the light emitted from the light emitting element 107 is blocked by the preceding disc 300 and received. When the output of the element 108 changes to Hi, it is detected that the disk 300 has been inserted into the disk device, and the disk device starts the operation of the power source and starts the rotation of the roller member 101.

  When a plurality of discs 300 are further inserted by the user, the disc 300 is automatically loaded by being pressed between the preceding disc 300 and the roller members 101 and 102 (see FIG. 14).

  When the roller member 102 is displaced upward (direction A in the drawing), the lever member 109 has the shaft member 109a as a fulcrum in the drawing H direction due to the relationship between the lever engaging portion 102a of the roller member 102 and the groove 109b of the lever member 109. To turn. When the overlapping portion of the two discs 300 in the thickness direction is pressed between the roller members 101, 102, the roller member 102 and the lever member 109 are brought into contact with the switch contact portion 109c of the lever member 109 and the push switch 110. The state is displaced to the state, and the output of the push switch 110 changes from Hi to Lo (see FIG. 15). When the output of the push switch 110 changes, it is recognized that a plurality of discs 300 have been inserted into the apparatus, the autoloading of the discs 300 is stopped, and the operation direction of a drive source (not shown) is reversed. Thus, the rotation direction of the roller member 101 is reversed, and a plurality of (for example, two) discs 300 are conveyed to the ejection completion position.

  FIG. 16 shows the states of the position sensors 105 and 106, the light receiving element 108, and the push switches 110 and 113 during the above operation. Note that detection of a change in the output of the push switch 110, determination of insertion of a plurality of sheets, and an instruction to reverse the roller member 101 are performed by a control unit (not shown).

  Next, an operation when a plurality of (for example, two) discs 300 are inserted into the apparatus with a large shift amount and no overlapping in the thickness direction will be described. In this case, when the first disk 300 is loaded, the output level of the push switch 110 does not change. Further, the engagement between the preceding disk 300 and the shaft member 103a of the lever member 103 and the shaft member 104a of the lever member 104 is released, and the output levels of the position sensors 105 and 106 return to the initial positions.

  In this state, when the second disk 300 is advanced, the rear disk 300 is engaged with the shaft member 103a of the lever member 103 and the shaft member 104a of the lever member 104, and the lever member 103 moves the lever in the direction C in FIG. The member 104 starts to slide in the direction D in the drawing. Thereby, the output levels of the position sensors 105 and 106 are increased. At this timing, it is detected that a plurality of discs 300 are inserted into the apparatus, the auto loading of the discs 300 is stopped, and the operation direction of a drive source (not shown) is reversed to rotate the roller member 101. The direction is reversed and the second disk 300 is conveyed to the ejection completion position.

  In the present embodiment, the roller member 101 is rotated by a power source (not shown) to load and eject the disc 300. However, according to the present invention, a power source (not shown) is used. The configuration may be such that the disk member 300 is loaded or ejected by rotating the roller member 102.

  In this embodiment, the position of the lower surface of the disk 300 is regulated by the roller member 101 so that the roller member 102 can be moved according to the position of the upper surface of the disk 300, and the displacement of the roller member 102 is pushed with the lever member 109. The switch 110 detects the position, but the position of the upper surface of the disk 300 is regulated by the roller member 102 so that the roller member 101 can be moved in accordance with the position of the lower surface of the disk 300. It may be configured to detect with the push switch 110.

  In the present embodiment, the displacement of the lever member 109 and the lever member 111 is detected by the push switches 110 and 113, respectively. However, the displacement of the two levers is determined by a combination of a light emitting element and a light receiving element or a position sensor. It may be configured to detect at.

  In this embodiment, the displacement of the roller member 102 is detected by the lever member 109 and the push switch 110. However, the displacement of the roller member 102 is directly detected by a push switch, a combination of a light emitting element and a light receiving element, or It may be configured to detect with a position sensor. Similarly, the displacement of the roller member 102 is restricted and the roller member 101 can be displaced, and the displacement of the roller member 101 is directly detected by a push switch, a combination of a light emitting element and a light receiving element, or a position sensor. Also good.

  In the present embodiment, the position sensors 105 and 106 detect the displacement of the lever members 103 and 104 in the left-right direction of the device (directions C and D in the drawing). However, the lever members 103 and 104 start to slide. A configuration in which the position and the maximum displacement position in the left-right direction of the apparatus are detected may be detected by a combination of a light emitting element and a light receiving element or by a push switch.

(Second Embodiment)
19 and 20 show a disk device according to a second embodiment of the present invention. FIG. 19 is a top view of the main part of the disk device according to the second embodiment of the present invention, and FIG. 20 is a side view of the main part of the disk device according to the second embodiment of the present invention.

  In the present embodiment, a roller member 115 that contacts the lever member 114 and the disk 300 inserted in the apparatus is provided, and functions as a thickness detection member. Further, a push switch 116 whose state changes depending on the position of the lever member 114 is provided. The lever member 114 is provided with a shaft member 114a, a switch contact portion 114b, and a stopper contact portion 114c. The lever member 114 is provided with a roller member 115 so as to be rotatable about a shaft member 115a. The lever member 114 is disposed so as to be rotatable about the shaft member 114 a with respect to the housing 100. Further, the casing 100 is provided with an elastic member (not shown) for urging the lever member 114 in the direction K in the drawing, and is provided on the lever member 114 when no disk is inserted in the apparatus. The stopper contact portion 114c comes into contact with the stopper portion 100e provided on the housing 100, and the lever member 114 is held at the initial position. At this position, the roller member 115 rotatably provided on the lever member is configured to protrude into the disc conveyance path formed by the roller members 101 and 102. Further, the roller member 115 is provided on the lever member 114, and the roller member 115 is brought into contact with the disk inserted in the apparatus, thereby reducing contact damage to the disk inserted in the apparatus.

  Further, the roller member 115 that comes into contact with the disk 300 inserted in the apparatus is disposed on the back side in the disk insertion direction with respect to the disk conveying roller members 101 and 102 and at a position adjacent to the roller members 101 and 102. . Thereby, it is configured to reduce the possibility of erroneously detecting whether one disk is inserted or a plurality of disks are inserted due to the inclination of the disk when the disk is inserted into the apparatus.

  In the disk device according to the present embodiment, an adapter that holds an 8 cm disk at the center can be inserted as in the disk device according to the first embodiment. FIG. 22 shows a top view of an 8 cm adapter holding an 8 cm disk, and FIG. 23 shows a cross-sectional view of the 8 cm adapter holding an 8 cm disk. FIG. 21 shows a top view of the main part of the disk device in which the 8 cm disk mounted on the 8 cm adapter is inserted.

  As shown in FIG. 21, when the 8 cm adapter 301 is inserted into the apparatus, the roller member 115 that contacts the disk 300 inserted into the apparatus has a plurality of 8 cm disk holding claws 301 a provided on the 8 cm adapter 301. It is arranged on the outer side in the width direction with respect to the disc insertion direction than the range that can pass. This prevents the roller member 115 from coming into contact with the thickness (drawing t301a) of the plurality of 8 cm disc holding claws protruding from the disc thickness (drawing t302) and the adapter thickness (drawing t301), and at the center of the apparatus. When the 8 cm adapter 301 holding the 8 cm disk 302 is inserted, it is configured to reduce the possibility of erroneous detection of whether one disk is inserted or a plurality of disks are inserted.

  When the disc 300 is not inserted into the apparatus or when one disc 300 is inserted, the switch contact portion 114b provided on the lever member 114 does not come into contact with the push switch 116, so that the output of the push switch 116 is The switch contact portion 114b provided on the lever member 114 comes into contact with the push switch 116 when a plurality of (for example, two) discs are pressed between the roller member 101 and the roller member 102 without changing Hi. The output of the push switch 116 is configured to indicate Lo. Thus, the thickness of the disc inserted into the apparatus can be detected by the output of the push switch 116.

  The configuration of the other devices is the same as that of the first embodiment of the present invention, and the description thereof is omitted.

  Next, a loading operation, an ejecting operation, and operations for a plurality of disks of the disk device according to the present embodiment will be described.

(1) Loading operation of the disc 300 When the disc 300 is inserted into the disc insertion slot 100a of the housing 100 provided in the disc device by the user, the light emitted from the light emitting element 107 is blocked by the disc 300, When the output of the light receiving element 108 changes to Hi, it is detected that the disk 300 is inserted into the disk device, and the disk device starts the operation of the power source and starts the rotation of the roller member 101.

  When the disc 300 is further inserted by the user, the disc 300 is pressed between the roller members 101 and 102 and the auto loading of the disc 300 is started.

  When the auto loading of the disc 300 is continued, the disc 300 comes into contact with the roller member 115 provided on the lever member 114, and the lever member 114 rotates in the direction J in the drawing with the shaft member 114a as a fulcrum. However, when one disk is inserted into the apparatus, the switch contact portion 114b of the lever member 114 and the push switch 116 are not in contact with each other, and the output of the push switch 116 remains Hi.

  When the disc 300 further advances, the disc 300 comes into contact with the shaft members 103a and 104a of the lever members 103 and 104, respectively, and the lever member 103 starts to slide in the drawing C direction and the lever member 104 starts to slide in the drawing D direction. As a result, the output levels of the position sensors 105 and 106 are increased, and the output levels of the position sensors 105 and 106 are maximized while the maximum diameter portion of the disk 300 is in contact with the shaft members 103a and 104a.

  When the disc 300 further advances, the disc 300 comes into contact with the roller member 111a of the lever member 111, and the lever member 111 starts to rotate in the direction of the drawing E against the urging force of the elastic member 112. Then, when the lever member 111 rotates and the switch contact portion 111b of the lever member 111 comes into contact with the push switch 113, the output of the push switch 113 changes from Hi to Lo.

  When the disk 300 further advances, the contact between the disk 300 and the shaft member 103a of the lever member 103 and the shaft member 104a of the lever member 104 is released, and the lever members 103 and 104 are held at the initial positions. The output levels of the position sensors 105 and 106 also return to the initial position.

  When the disc 300 further advances, the press of the disc 300 and the roller members 101 and 102 is released, and the disc 300 is moved in the recording / reproducing position direction by the action of the lever member 111 and the elastic member 112. Further, the engagement between the lever member 111 and the push switch 113 is released, and the output of the push switch 113 changes from Lo to Hi. The rotation of the roller member 101 is stopped by stopping the operation of a drive source (not shown) at the timing when the output of the push switch 113 changes to Hi.

  Next, the disc 300 is transported to a recording / reproducing position by the disc recording / reproducing unit 200 by a mechanism (not shown) and held on the spindle motor 201. By this operation, the loading operation of the disc 300 is completed, and the disc device becomes ready for recording and reproduction of the disc 300.

(2) Ejecting operation of the disc 300 First, the holding of the disc 300 on the spindle motor 201 is released by a mechanism not shown, and the ejecting operation of the disc is started. Next, the disc 300 is conveyed in the eject direction by a mechanism not shown, the disc 300 contacts the roller member 111a of the lever member 111, and the lever member 111 moves in the direction of the drawing E against the urging force of the elastic member 112. Start turning. Then, when the lever member 111 rotates and the switch contact portion 111b of the lever member 111 comes into contact with the push switch 113, the output of the push switch 113 changes from Hi to Lo. The rotation of the roller member 101 is started by starting the operation of a drive source (not shown) at the timing when the output of the push switch 113 changes to Hi.

  Further, when the disk 300 is transported by a mechanism (not shown), the disk 300 and the roller member 101 come into contact with each other and are pressed between the roller members 101 and 102 to start the disk transport by the roller member 101 of the disk 300. Is done. The disc 300 advances in the ejecting direction at a timing opposite to that at the time of loading, and the disc 300 is transported to the ejection completion position.

  Note that the completion of ejection of the disc 300 is detected by the light receiving element 108, the position sensors 105 and 106, or a detection means (not shown). With this operation, the ejection operation of the disc 300 is completed.

(3) Operation for Plural Discs 300 Next, the operation of the disc apparatus for plural discs (two in this example) will be described with reference to FIGS. 24, 25, 26, and 27. FIG. FIG. 24 is a top view of the main part of the disk device when two disks are passing through the disk insertion / ejection part in the second embodiment of the present invention, and FIG. 25 is a diagram of the second embodiment of the present invention. FIG. 26 is a side view of the main part of the disk device when one disk passes through the disk insertion / extraction part, and FIG. 26 shows that two disks according to the second embodiment of the present invention pass through the disk insertion / extraction part. FIG. 27 is a timing chart of the output of each sensor of the disk device when two disks of the second embodiment of the present invention pass through the disk insertion / ejection unit. .

  When the two discs 300 are inserted into the disc insertion slot 100a of the housing 100 provided in the disc device by the user, the light emitted from the light emitting element 107 is blocked by the preceding disc 300 and received. When the output of the element 108 changes to Hi, it is detected that the disk 300 has been inserted into the disk device, and the disk device starts the operation of the power source and starts the rotation of the roller member 101.

  When the two discs 300 are further inserted by the user, the disc 300 is automatically loaded by being pressed between the preceding disc 300 and the roller members 101 and 102.

  When the auto loading of the disc 300 is continued, the disc 300 comes into contact with the roller member 115 provided on the lever member 114, and the lever member 114 rotates in the direction J in the drawing with the shaft member 114a as a fulcrum. When the overlapping portions of the plurality of (for example, two) discs 300 in the thickness direction come into contact with the roller member 115, the lever member 114 rotates until the switch contact portion 114b of the lever member 114 and the push switch 116 come into contact with each other. Then, the output of the push switch 116 changes from Hi to Lo. When the output of the push switch 116 changes, it is recognized that a plurality of (for example, two) discs 300 have been inserted into the apparatus, the autoloading of the disc 300 is stopped, and the operation of a drive source (not shown) By reversing the direction, the rotation direction of the roller member 101 is reversed, and the two discs 300 are conveyed to the ejection completion position.

  Regarding the operation when a plurality of (for example, two) discs 300 are inserted into the apparatus with a large shift amount and no overlapping in the thickness direction, the position of the disc is determined using the lever member 114 and the push switch 116. Except for detection, the description is omitted because it is the same as the disk device of the first embodiment.

  In the present embodiment, the roller member 101 is rotated by a power source (not shown) to load and eject the disc 300. However, according to the present invention, a power source (not shown) is used. The configuration may be such that the disk member 300 is loaded or ejected by rotating the roller member 102.

  Further, in the present embodiment, the position of the lower surface of the disk 300 is regulated by the roller member 101, the roller member 102 can be moved according to the position of the upper surface of the disk 300, and the lever member 114 and the roller member 115 are connected to the disk 300. Although the structure is arranged on the upper surface side, the position of the upper surface of the disk 300 is regulated by the roller member 102, the roller member 101 can be moved according to the position of the lower surface of the disk 300, and the lever member 114 and the roller member 115 are moved to the disk 300. The structure arrange | positioned on the lower surface side of may be sufficient.

  In the present embodiment, the displacement of the lever member 111 and the lever member 114 is detected by the push switches 113 and 116, respectively, but the displacement of the two levers is a combination of a light emitting element and a light receiving element or a position sensor. It may be configured to detect at.

  In the present embodiment, the lever member 114, the roller member 115, and the push switch 116 that detects the displacement of the lever member 114 are configured to detect the thickness of the disk inserted in the apparatus. The configuration may be such that the thickness of the disc inserted into the apparatus is directly detected by the provided push switch.

  In the present embodiment, the position sensors 105 and 106 detect the displacement of the lever members 103 and 104 in the left-right direction of the device (directions C and D in the drawing). However, the lever members 103 and 104 start to slide. A configuration in which the position and the maximum displacement position in the left-right direction of the apparatus are detected may be detected by a combination of a light emitting element and a light receiving element or by a push switch.

  As described above, the disk device of the present invention is movable in the thickness direction of the disk inserted in the disk device, and is in contact with the upper surface or the lower surface of the disk, and the thickness direction of the thickness detection member. A number of discs inserted into the disc device, comprising: a disc position detecting means for electrically detecting the position; and a number discriminating means for identifying the number of inserted discs based on the output of the disc position detecting means. The disk device is electrically identified, and the disk device mechanism is controlled based on the identification result, so that stable disk insertion and removal can be realized, and the disk device mechanism and disk damage can be reduced. It is useful as a device.

The top view of the principal part of the disk apparatus of the 1st Embodiment of this invention The side view of the principal part of the disc apparatus of the 1st Embodiment of this invention The front view of the principal part of the disc apparatus of the 1st Embodiment of this invention The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The side view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention The side view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. In the disk device according to the first embodiment of the present invention, the timing chart of the output of each sensor of the disk device when the disk passes through the disk insertion / ejection unit The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The top view of the principal part of a disk apparatus when the disk is passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The top view of the principal part of a disk apparatus when two disks are passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. The side view of the principal part of a disk apparatus when two disks are passing the disk insertion / extraction part in the disk apparatus of the 1st Embodiment of this invention. In the disk device according to the first embodiment of the present invention, the timing chart of the output of each sensor of the disk device when two disks pass through the disk insertion / ejection unit The top view of the principal part of a disk apparatus when two disks are passing the disk insertion / ejection part in the disk apparatus of the 1st Embodiment of this invention. In the disk device according to the first embodiment of the present invention, the timing chart of the output of each sensor of the disk device when two disks pass through the disk insertion / ejection unit The top view of the principal part of the disk apparatus of the 2nd Embodiment of this invention Side view of the main part of the disk device according to the second embodiment of the present invention. The top view of the principal part of the disk apparatus in which the 8 cm disk with which the 8 cm adapter was mounted | worn was inserted in the disk apparatus of the 2nd Embodiment of this invention. The top view of the 8 cm adapter holding the 8 cm disk used for the disk apparatus of embodiment of this invention Sectional drawing of the 8 cm adapter holding the 8 cm disk used for the disk apparatus of embodiment of this invention The top view of the principal part of a disk apparatus when two disks are passing the disk insertion / extraction part in the disk apparatus of the 2nd Embodiment of this invention. The side view of the principal part of a disk apparatus when one disk is passing the disk insertion / ejection part in the disk apparatus of the 2nd Embodiment of this invention. The side view of the principal part of a disk apparatus when two disks are passing the disk insertion / extraction part in the disk apparatus of the 2nd Embodiment of this invention. In the disk device according to the second embodiment of the present invention, the timing chart of the output of each sensor of the disk device when two disks pass through the disk insertion / ejection unit Front view showing a conventional disk insertion / extraction device Front view showing the main part of the disk insertion / ejection device when two disks are inserted into the conventional disk insertion / ejection device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Housing | casing 100a Disc insertion slot 100b Stopper part 100c Shaft member 100d Stopper part 101 Roller member 102 Roller member 102a Lever engaging part 103 Lever member 103a Shaft member 103b Groove 104 Lever member 104a Shaft member 104b Groove 105 Position sensor 105a Shaft member 106 Position sensor 106a Shaft member 107 Light emitting element 108 Light receiving element 109 Lever member 109a Shaft member 109b Groove 109c Switch contact portion 109d Stopper contact portion 110 Push switch 111 Lever member 111a Roller member 111b Switch contact portion 112 Elastic member 113 Push switch 200 Disc recording / playback Part 201 Spindle motor 202 Optical pickup 203 Traverse motor 300 Disc 01 8cm adapter 301a 8cm disc holding claw 302 8cm disc

Claims (7)

A disc identification device for identifying a disc inserted into the disc device,
A thickness detecting member having a disk transport roller that is movable in the thickness direction of the disk, contacts the upper or lower surface of the disk, and presses the disk to transport the disk;
Disk position detection means for detecting the thickness direction position of the thickness detection member;
Based on the output of the disk position detecting means, a number identifying means for identifying whether the disk inserted in the apparatus is one or more,
A displacement in the thickness direction of the disk transport roller is converted into a displacement in a direction different from the thickness direction to increase the displacement in the thickness direction of the disk transport roller and transmitted to the disk position detecting means. And a lever member. The disc identification device according to claim 1,
The first lever member is a disc identification device that increases the displacement of the disc transport roller in the thickness direction by converting the displacement in the thickness direction of the transport roller into a rotational direction. The disc identification device according to claim 1,
The disk position detection means includes switch means whose state changes according to the position of the thickness detection member, and the first lever member includes a shaft member serving as a rotation fulcrum, a groove engaging with the transport roller, A switch contact portion provided to be able to contact the switch means ,
A disk identification device in which a distance from the shaft member to the switch contact portion is set larger than a distance from the shaft member to the groove. The disc identification device according to any one of claims 1 to 3,
A second lever member that is disposed on the near side in the disc insertion direction and moves by contacting the disc;
The disc identification device is for discriminating the number of inserted discs based on the movement timing of the second lever member. 5. A disk insertion / ejection device that inserts and ejects the disk based on the identification result of the disk identification device according to claim 1 . The disc insertion / extraction device according to claim 5,
A disc insertion / ejection device having a disc conveyance path capable of inserting and ejecting a plurality of discs . A disk identification device according to any one of claims 1 to 4,
  A disk device comprising the disk insertion / ejection device according to claim 5.

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