JP3891216B2 - Disc recording and / or playback device - Google Patents

Description

Invention relates to a plurality of recording disc holding means for holding a disk which is a medium is that disc recording employed for the to be for example automotive accommodated by stacking and / or reproducing apparatus.

  2. Description of the Related Art Conventionally, there are optical disks that can record and / or reproduce information signals such as music signals, map data, and information data processed by a computer using a light beam. In this optical disk recording and / or reproducing apparatus, a plurality of optical disks are accommodated in an accommodating apparatus, and the optical disk is appropriately drawn out to a recording / reproducing unit where recording and / or reproducing is performed, and recording and / or reproducing of the optical disk is performed. There is something to do. Such a recording and / or reproducing device is used in, for example, an in-vehicle recording and / or reproducing device.

  In-vehicle recording and / or reproducing devices are generally operated using an operating device disposed in a central console near the cockpit. In this recording and / or reproducing apparatus, an optical disk recording and / or reproducing mechanism is provided in an apparatus main body in which a plurality of optical disks accommodated in a trunk at the rear of the vehicle are accommodated. In this recording and / or reproducing apparatus, when the operating device is operated, an optical disk desired by the user in the apparatus is selected, and recording and / or reproducing is performed. In this recording and / or reproducing apparatus, the optical disk in the storage device is selected and reproduced by using the operation device of the central console, thereby eliminating the need for manual disk replacement and improving the operability.

  In such a recording and / or reproducing apparatus, the optical disk is held in a disk tray provided with a disk storage section on a substantially shallow dish and stored in the disk tray storage apparatus. That is, a plurality of disk trays are stacked and stored in the disk tray storage device. Specifically, the recording and / or reproducing apparatus is provided with guide portions on opposite side walls corresponding to the number of disc trays to be stored. The disc tray is supported by the guide portion and is slidably accommodated inside and outside the apparatus. When reproducing the optical disk, the disk tray is pulled out from the storage position where the disk tray is stored to the recording / reproducing position by a transport mechanism provided in the apparatus. Then, the optical disk is slightly lifted from the disk tray and clamped by the disk drive mechanism so that the optical disk can be rotated.

  In such a recording and / or reproducing apparatus, disk trays are stacked and accommodated in the apparatus. Therefore, it is necessary to ensure a gap so that the disk tray does not come into contact with the lower surface of the disk tray on the upper side.

  In some recording and / or reproducing apparatuses, the disk tray in the storage position and the disk tray in the recording / reproducing position are partially overlapped to reduce the size. In such a recording and / or reproducing apparatus, it is necessary to secure an interval between the disk tray at the recording / reproducing position and the disk tray at the storage position. This interval is required to the extent that the optical disk clamped to the lower surface of the disk tray at the storage position located above the disk tray at the recording / reproducing position does not come in contact with the recording / reproducing of the optical disk.

  In particular, in the case of an in-vehicle recording and / or reproducing apparatus, a large vibration is applied when the automobile is running. Therefore, it is necessary to ensure the space between the disk trays. Furthermore, it is necessary to prevent the stored optical disk from jumping out of the storage position due to vibration.

Japanese Patent Laid-Open No. 06-111513

  Accordingly, the present invention provides a disk recording device that can sufficiently and reliably secure a gap between the disk trays and regulate a storage position of the disk held by the disk holding means in an apparatus in which a plurality of disk holding means are stored. Another object of the present invention is to provide a playback device.

  In order to solve the above-described problems, the disk recording and / or reproducing apparatus according to the present invention includes a plurality of disk holding means for holding a disk and the plurality of disk holding means stacked in a parallel state. Storage means to be stored; guide means provided on the storage means so that the disk holding means is conveyed from the storage means in a direction perpendicular to the stacking direction; and the disk holding means is stored in the storage means. Transport means for transporting the disk holding means according to the guide means over a storage position and a recording / reproducing position at which recording and / or reproduction of the disk is performed. The guide means has a first support part for supporting the lower surface side of the disk holding means and a second support part for supporting the upper surface side of the disk holding means. The first support portion supports the disk holding means so that it is gently lowered from the storage position to the recording / reproducing position by the guide means when the disk holding means is transported from the storage position to the recording / reproducing position. Further, the disk holding means is provided with a first gap ensuring means that comes into contact with the second support portion in order to secure a gap between the disk holding means adjacent to each other in the vertical direction. Further, the second support part is provided with a disk restricting part for restricting the storage position of the disk held by the disk holding means.

  According to the present invention, the first support portion supports the disc holding means so as to be gently lowered from the storage position to the recording / reproducing position by the guide means when transporting the disk holding means from the storage position to the recording / reproducing position. Thus, a sufficient gap can be secured between the disk holding means at the storage position and the disk holding means at the recording / reproducing position.

  Further, since the disk holding means is provided with the first gap ensuring means that is brought into contact with the second support portion in order to secure a gap between the upper and lower adjacent disk holding means, a guide for the disk holding means is provided. It is possible to secure a gap with the second support portion that performs the above.

  Since the second support portion is provided with a disk restricting portion for restricting the storage position of the disk held by the disk holding means, the storage position of the disk held by the disk holding means at the storage position can be restricted. it can.

  Hereinafter, in an embodiment of the present invention, an in-vehicle optical disc reproducing apparatus to which the present invention is applied will be described in detail with reference to the drawings.

  The disk reproducing apparatus includes a disk tray storage device that stores a plurality of disk trays. In the disc tray storage device, when the disc tray is not loaded and removed from the disc reproducing device for exchanging the optical disc, the disc tray is moved between the inside and outside of the device, and the optical disc is exchanged. Further, when the disc tray storage device is stored in a predetermined storage portion of the disc playback device, it can be pulled out by the transport mechanism to a playback position where the optical disc of the disc playback device is played back.

[Description of disc tray]
As shown in FIG. 1, a disk tray storage device 1 used for this disk reproducing apparatus includes a disk tray 3 for holding an optical disk 2 and a tray storage body 4 in which 10 disk trays are stacked and stored. .

  As shown in FIGS. 2 and 3, the disc tray 3 is made of a synthetic resin material such as polycarbonate resin and has a rectangular thin plate shape as a whole. As shown in FIG. 2, the disc tray 3 has a concave disc storage recess 11 formed on almost the entire main surface. The disc storage recess 11 is formed in a shallow dish shape having a circular shape with a diameter slightly larger than the diameter of the optical disc 2 so that the optical disc 2 to be placed can be held.

  The disk storage recess 11 is further formed with an auxiliary disk storage recess 12 having a smaller diameter than the disk storage recess 11 with the center aligned. An optical disk having a diameter of 12 cm is placed in the disk housing recess 11, and an optical disk having a diameter of 8 cm is placed in the auxiliary disk housing recess 12. A bottom opening 13 is formed in the disc storage recess 11 from the center to the rear end located inward of the disc tray storage device 1. Of the bottom opening 13, the area provided at the center of the disk tray 3 is used as a disk table opening 13 a into which the disk table enters, and the area provided across the rear end side of the disk tray 3 is: Used as an optical pickup opening 13b facing the optical pickup. The auxiliary disc storage recess 12 is formed with an escape hole 14 that serves as an escape for the positioning mechanism when the disc tray 3 is transferred to the recording / reproducing unit.

  A pair of guide rail portions 15 are formed on the disc tray 3 at both side edges in the moving direction of the disc tray 3. In the guide rail portion 15, drop prevention portions 16 a and 16 b are formed on the rear end side of the disc storage recess 11 to prevent the disc tray 3 from dropping from the tray storage body 4. The drop-off prevention portions 16a and 16b are formed in a claw shape, and will be engaged with an engagement portion of a guide portion of the disc tray 3 provided in the tray housing 4 as will be described in detail later. Further, the guide rail portion 15 is provided with a gap guarantee protrusion 17 on the rear end side of the disc tray 3 for securing a gap with the guide portion for guiding the disc tray 3 provided in the tray housing 4. It has been.

  In such a disc tray 3, the region around the tray where the disc storage recess 11 is not provided is the first thick portion 26, and the region where the disc storage recess 11 is provided is thinner than the first thickness portion 26. The second thick portion 27 is formed as a second thick portion 27, and the region where the auxiliary disk storage recess 12 is provided is the third thick portion 28 formed thinner than the second thick portion 27. In the disc tray 3, a region where the guide rail portion 15 is provided is a fourth thick portion 29 formed thinner than the first thick portion 26. The disc tray 3 is made thinner in the order of the first thick part 26, the fourth thick part 29, the second thick part 27, and the third thick part 28. Accordingly, the disk tray 3 is formed to be easily elastically deformed because the disk storage recess 11 and the auxiliary disk storage recess 12 are formed thin and the bottom opening 13 is provided. The disk tray 3 can be easily removed from the tray housing 4 by utilizing this elastic deformation.

  In addition, the disk tray 3 is provided with a pull-out operation unit 18 biased to one of the front ends in the pull-out direction. The drawer operation unit 18 is formed in a knob shape. When the disk tray 3 is inserted into and removed from the tray storage body 4, the drawer operation unit 18 is picked up by a finger, and the disk tray 3 is exchanged from the storage position where the disk tray 3 is stored. At the same time, the disk tray 3 is moved to a removal operation position where the disk tray 3 is removed, and when attached to the disk reproducing apparatus, the disk tray 3 is engaged with the transport mechanism to reproduce the tray container 4 and the disk reproducing apparatus. Move across the section. Further, a notch portion 19 is formed on the leading end side of the disc tray 3 in the drawer operation portion 18. When the disc tray 3 is moved into the reproducing unit of the disc reproducing device, a position regulating projection for regulating the position of the disc tray 3 in the reproducing unit is abutted against the notch 19.

  At the rear end of the disc tray 3, a locking portion 21 is provided on one side by being cut out inward of the disc tray 3. An elastic piece provided on the inner back wall of the tray housing 4 is engaged with the locking portion 21. That is, the disc tray 3 is held at the storage position of the tray storage body 4 by engaging the elastic piece on the tray storage body 4 side with the engaging portion 21. A notch 22 is provided on the other side of the rear end of the disk tray 3. The notch 22 extends to the disk storage recess 11. A buffer portion made of an elastic material such as urethane provided on the back wall of the tray housing 4 enters the cutout portion 22 and protects the optical disc 2 placed on the disc tray 3 and the disc housing recess 11 from impact. .

  On both sides on the rear end side of the disc tray 3, the first protrusions 23 are formed to bulge out in a thick region where the disc storage recess 11 is not provided. The first protrusion 23 is abutted against the second protrusion 24 on the other surface side of the disc tray 3 to ensure a gap between the disc trays 3.

  Further, as shown in FIG. 3, second protrusions 24 are provided on both sides of the front end of the disk tray 3 on the other surface side. The second protrusion 24 is formed with a concave portion on the main surface thereof so that the second protrusion 24 can be easily aligned with the first protrusion 23. The first projecting portion 23 and the second projecting portion 24 are in contact with each other and are in the storage position in the disc tray 3 and the tray storage body 4 at the playback position in the playback portion of the disc playback apparatus. A gap with the disc tray 3 is secured.

[Description of tray housing]
Next, the tray storage body 4 in which the above-described disc tray 3 is stored will be described. As shown in FIGS. 1 and 4, the tray housing 4 includes an outer housing 31 made of a synthetic resin material that constitutes the tray housing 4, and a first outer housing 31 that is parallel to the moving direction of the disk tray 3. And a tray guide portion 32 provided on the inner surfaces of the second side surfaces 36 and 37. The outer casing 31 is formed in a rectangular shape that is large enough to accommodate ten disk trays 3 stacked together. The outer casing 31 is provided with an insertion direction display section 33 for displaying the insertion direction into the disk reproducing device on the main surface serving as the ceiling. Specifically, the insertion direction display unit 33 is configured by a triangular mark, an arrow, or the like indicating the insertion direction. The main surface of the outer casing 31 is provided with an operation unit 34 for improving the operability when the disk tray storage device 1 is inserted into and removed from the disk reproducing device. The operation unit 34 is formed with unevenness on the side edge in the direction of taking out the disc tray storage device 1. The user holds the operation unit 33 and performs an insertion / removal operation from the disk reproducing apparatus.

  The tray housing 4 is provided with a tray insertion / removal opening 35 for insertion / removal of the disk tray 3 in the insertion / removal direction of the disk tray 3. The tray insertion / removal opening 35 has a second side surface 37 opposite to the drawer operation unit 18 of the disk tray 3 in a state where the disk tray 3 is stored in the tray storage body 4. The first side surface 36 is provided so as to protrude in the direction in which the disk tray 3 is pulled out. That is, the tray insertion opening 35 is provided with a drawer operation notch 38 in which the drawer operation unit 18 faces outward. The drawer operation notch 38 is formed by cutting out the side edge on the tray insertion / removal opening 35 side across the ceiling surface, first side wall, and bottom surface of the tray housing 4. Thus, the pull-out operation notch 38 makes the pull-out operation of the disc tray 3 easy by allowing the pull-out operation portion 18 of the disc tray 3 to face outward.

  Further, as shown in FIG. 4, a disk in which the elastic piece 39 engaged with the above-described locking portion 21 is housed in the back wall of the outer casing 31 on the side facing the tray insertion / removal opening 35. It is provided corresponding to the number of trays 3. In addition, the back wall is provided with a buffer portion 40 that abuts against the notch 22 and protects the disc tray 3 and the optical disc 2 held on the disc tray 3.

  As shown in FIG. 4, 11 guide pieces for guiding the disc tray 3 are arranged in parallel on the opposite side walls of the outer case 31 in the same direction as the moving direction of the disc tray 3 in the outer case 31. Is provided. The tray guide portion 32 that is fitted with the guide rail portion 15 of the disc tray 3 and guides the movement of the disc tray 3 is configured as a pair of two upper and lower guide pieces. In other words, the tray guide portion 32 is formed in a concave shape by two adjacent guide pieces and the first and second side walls 36 and 37 provided with the guide pieces. The tray guide portion 32 is provided in 10 stages corresponding to the number of disk trays 3 stored in the tray storage body 4. The tray guide portion 32 is not provided on the entire surface of the first and second side walls 36 and 37 but is provided with a length necessary for supporting the disc tray 3.

  The tray guide portion 32 includes a first support portion 42 that supports the lower surface side of the guide rail portion 15 of the disc tray 3 and a second support portion 43 that supports the upper surface side of the guide rail portion 15 of the disc tray 3. Become. In addition, the second support portion 43 is provided with a disc restricting portion 44 that restricts the storage position of the optical disc 2 placed in the disc storage recess 11. The distance between the first support portion 42 and the second support portion 43 is the dimension obtained by adding the thickness of the guide rail portion 15 of the disk tray 3, that is, the amount of the fourth thick portion 29 and the gap ensuring protrusion 17. It is said. As shown in FIG. 5, when the guide rail portion 15 of the disc tray 3 is fitted, the concave portion constituted by the first support portion 42 and the second support portion 43 in this way is the second support portion. 43 is brought into contact with the gap ensuring protrusion 17. Further, the disc tray 3 is supported via a clearance 41 necessary for the tray guide portion 32 to slide from the side surface of the concave portion constituted by the first support portion 42 and the second support portion 43.

  As shown in FIGS. 4 and 5, the disk restricting portion 44 is formed from the upper side edge of the second support portion 43, and is formed to have a step by making the second support portion 43 thin. That is, the distance between the first support part 42 and the disk restricting part 44 is made larger than the distance between the first support part 42 and the second support part 43 and is slightly larger than the first thick part 26. It is said. Accordingly, the disc restricting portion 44 is positioned above the peripheral edge of the optical disc 2 placed in the first thick portion 26 and the disc accommodating recess 11 of the disc tray 3, and the disc tray 3 is brought into the accommodating position. The storage position of the optical disk 2 at a certain time is regulated.

  The first support part 42 and the disk restricting part 44 are formed so as to be gradually thinned so as to gently descend toward the tray insertion / removal opening 35 side. Therefore, the tray guide portion 32 is formed such that the gap between the first support portion 42 and the second support portion 43 is larger on the tray insertion / removal opening 35 side than on the inner side of the outer casing 31. Is done. Therefore, in the vicinity of the tray insertion / removal opening 35, the gap ensuring protrusion 17 and the second support 43 are not brought into contact with each other. The tray guide part 32 can reduce the thickness of the tray housing 4 by adopting such a configuration. That is, the distance between the first support portion 42 and the second support portion 43 may be provided in accordance with the thickness of the guide rail portion 15 and the fourth thick portion 28. Therefore, if the guide rail portion 15 has the same thickness as that of the first thick portion 26, the distance between the first support portion 42 and the second support portion 43 can be reduced. Thereby, thickness reduction of the tray storage body 4 is achieved.

  Further, the tray guide portion 32 of the second side wall 37 is provided with a convex engaging portion 46 a that is engaged with the drop-off preventing portion 16 a in the middle of the tray guide portion 32. The tray guide portion 32 of the first side wall 36 is provided with a convex engaging portion 46b that is engaged with the drop-off preventing portion 16b in the vicinity of the tray insertion / removal opening 35. These engaging portions 46 a and 46 b engage with the drop-off preventing portions 16 a and 16 b when the disc tray 3 is pulled out from the tray storage body 4, thereby preventing the disc tray 3 from falling off the tray storage body 4. Further, the engaging portion 46a is provided in the middle of the tray guide portion 32 from the engaging portion 46b provided in the vicinity of the tray insertion / removal opening 35 of the tray guide portion 32, but the details will be described later from one direction. The disk tray 3 can be easily removed from the tray housing 4.

  Note that an address display section that indicates the address of the tray guide section 32 may be provided in the vicinity of the tray insertion / removal opening 35 of the first side wall 36 or the second side wall 37. As a result, the user can attach the disc tray 3 on which the desired optical disc 2 is placed at the desired address.

  When the disc tray 3 is housed in the tray housing 4, it is in the state shown in FIG. That is, the disk tray 3 and the disk storage recess 11 in the storage position completely stored in the tray storage body 4 are stored in the outer casing 31, and the disk is removed from the drawer operation notch 38 of the outer casing 31. The drawer operation part 18 of the storage recessed part 11 is made to face outward. The disk tray 3 can be easily pulled out from the tray housing 4 when the drawer operating portion 18 faces outward from the drawer operation notch 38.

  Further, as shown in FIG. 1, when the disc tray 3 is pulled out outward according to the guide rail portion 15 by a disc player or a finger pull-out operation, the drop-off preventing portions 16a and 16b become the guide rail portion. It is moved until it is engaged with the 15 engaging portions 46a, 46b. The position of the disc tray 3 is a position where the disc tray 3 is pulled out to the outermost position, and is a position corresponding to the reproduction position of the optical disc 2 when attached to the disc reproducing apparatus. The removal operation position is set as the removal operation position. The disc tray 3b in this state is in a state where the bottom opening 13 is completely exposed outward.

  The disc tray 3 stored in such a tray storage body 4 has a removal operation position of the disk tray 3 with the bottom surface opening 13 facing completely outward from the storage position completely stored in the tray storage body 4 (see FIG. It moves according to the tray guide part 32 over the reproduction position of the optical disk 2 to be described later.

  The moving state of the disc tray 3 will be described with reference to FIG. FIG. 6 is a cross-sectional view taken along the line AA shown in FIG. 5, and is a cross-sectional view of the guide rail portion 15 and the first and second support portions 42 and 43 of the tray guide portion 32.

  In FIG. 6, a disk tray 3a is a disk tray in the storage position. The disc tray 3 a in the storage position has a front edge at the same position as the end surface of the tray insertion / removal opening 35. The rear end edge of the disc tray 3a is at a position where the gap ensuring protrusion 17 is not provided with the inner tray guide portion 32 of the outer casing 31. When the disc tray 3a is moved in the pull-out direction, the disc tray 3b is brought into a state.

  In the disc tray 3 b, the gap ensuring protrusion 17 is brought into contact with the second support portion 43 that constitutes the tray guide portion 32. As a result, a gap with the disk tray 3 stored above the disk tray 3b is secured.

  When the disc tray 3b is further moved to the removal operation position, the disc tray 3b is brought into a state of the disc tray 3c. That is, as described above, the first support portion 42 is formed so as to be gradually thinned so as to gently descend toward the tray insertion / removal opening 35 side. The disc tray 3c is moved to a state where the gap ensuring projection 17 is located on the side of the thinly formed tray insertion / removal opening 35. Then, the disc tray 3 c is lowered according to the first support portion 42. In this state, a clearance is formed between the gap ensuring protrusion 17 and the second support portion 43. As a result, the distance between the disc tray 3c and the disc tray 3 accommodated on the upper side of the disc tray 3c is widened, and the replacement work of the optical disc 2 placed on the disc tray 3c is facilitated. That is, as shown in FIG. 5, the disk tray 3c moves only to the state where the disk storage recess 11 is not completely exposed outward from the outer casing 31 even at the removal operation position. However, the disc tray 3c is easily spaced from the upper disc tray 3 so that the optical disc 2 can be easily replaced.

  Further, as shown in FIG. 7, the disc tray 3 is in a state where the front end portion of the disc tray 3a at the storage position and the rear end portion of the disc tray 3c at the reproduction position overlap each other. The optical disc 2 held on the disc tray 3c is rotated in a state where the periphery of the optical disc 2 overlaps the front end portion of the disc tray 3a. Therefore, in the disc tray storage device 1, a gap between the reproduction position (removal operation position) and the disc tray 3 in the storage position is secured by the first protrusion 23 and the second protrusion 24. As shown in FIG. 7, the second protrusion 24 on the back side of the disc tray 3a in the storage position and the front side of the disc tray 3c located below the disc tray 3a and in the reproduction position (removal operation position) 1st protrusion part 23 which exists in this. As a result, a gap between the disk tray 3a and the disk tray 3c is secured, and the replacement work of the optical disk 2 is facilitated. In addition, a gap between the disc tray 3a and the disc tray 3c is secured at the reproduction position, and a gap between the optical disc 2 held on the disc tray 3c at the reproduction position and the disc tray 3a above the disc tray 3a. Will be secured. Therefore, when the optical disc 2 is played back, the optical disc 2 is prevented from coming into contact with the disc tray 3a located on the upper side even when the optical disc 2 is shaken.

  As described above, the disc tray 3 moves only to a state where the disc storage recess 11 is not completely exposed outward from the outer casing 31. This state is the playback position when the disc tray storage device 1 is loaded in the disc playback device 50. The optical disc 2 is clamped by being slightly lifted from the disc tray 3 by the disc driving / reproducing mechanism when the disc tray 3 is in the reproduction position. By providing the first projecting portion 23 and the second projecting portion 24 and by providing the first support portion 42 in a lowered manner, a distance from the disc tray 3 in the storage position at the reproduction position is secured. be able to.

  Further, the second protrusion 24 of the disc tray 3a shown in FIG. 7 regulates the placement position of the optical disc 2 placed on the disc tray 3c located at the lower side and at the reproduction position. That is, as shown in FIGS. 7 and 8, the second protrusion 24 of the disc tray 3a is positioned above the inner peripheral edge of the tray housing 4 of the optical disc 2 at the reproduction position. As a result, the optical disc 2 placed on the disc tray 3 that moves from the storage position to the reproduction position is initially regulated by the disc regulation portion 44 of the tray guide portion 32, and then the disc tray 3 is brought to the reproduction position. Until then, the placement position of the optical disc 2 placed in the disc storage recess 11 of the disc tray 3 is regulated by the second protrusion 24. In particular, the second protrusion 24 prevents the disc tray 3 from falling off the disc storage recess 11 while the disc tray 3 is moving from the storage position to the playback position.

[Description of disk tray removal and installation]
Next, the removal operation and attachment operation of the disk tray 3 from the tray housing 4 will be described with reference to FIG. FIG. 9 shows the disc tray 3 in the removal operation position.

As described above, the disc tray 3 is engaged with the pulling operation unit 18 and a transport mechanism for transporting the finger or the disc tray 3 to the reproducing unit. At this time, the finger or the transport mechanism is engaged with the pull-out operation unit 18 from the guide rail unit 15 side. Then, the disc tray 3, a finger or the transport mechanism is moved in the arrow X ₃ direction in FIG. 9, pulled out from the tray body 4, disengagement prevention part 16a of the disc tray 3, 16b engaging portion of the tray guide unit 32 It is pulled out until it is engaged with 46a and 46b and stops. At this time, a force is applied to the disc tray 3 in the direction of the arrow X ₁ via the drawer operation unit 18.

  Then, the disc tray 3 is rotated using the fulcrum A at the side edge of the tray insertion / removal opening 35 of the second side wall 37 as a rotation fulcrum. Then, the drop prevention part 16b of the tray guide part 32 on the first side wall 36 side of the disc tray 3 draws a locus as shown by a locus a indicated by a dotted line in FIG. As shown in FIG. 9, the locus a is applied to the engaging portion 46 b provided on the first side wall 36, the drop-off preventing portion 16 b is engaged with the engaging portion 46 b, and the tray storage body of the disc tray 3. Omission from 4 will be prevented.

On the other hand, the user, for example, over the bottom opening 13 to grip the disc tray 3 by hand or the like, the case of performing the removal operation of the disc tray 3 by applying a force to the direction of arrow X ₂ in FIG. In this case, the disc tray 3 is rotated with the fulcrum B at the side edge of the tray insertion / removal opening 35 of the first side wall 36 as a rotation fulcrum. Then, the drop-off prevention part 16a of the tray guide part 32 on the second side wall 37 side of the disc tray 3 draws a locus as shown by a locus b indicated by a dotted line in FIG. As shown in FIG. 9, the locus b is applied on the engaging portion 46a provided on the second side wall 37, and the drop-off preventing portion 16a is engaged with the engaging portion 46a. However, when the disc tray 3 is elastically deformed, the engagement state between the drop-off prevention portion 16a and the engagement portion 46a is released, and the disc tray 3 is removed from the tray storage body 4.

That is, the radius r _{1 of the} circle drawn by the locus a when the disk tray 3 is rotated by the force in the direction of the arrow X _{1 in the} figure and the case where the disk tray 3 is rotated by the force in the direction of the arrow X _{2 in the} figure. The following relationship is established for the radius r _{2 of the} circle drawn by the locus b.

Radius r _{1 of} locus a> radius r _{2 of} locus b
This is because the second side wall 37 protrudes from the first side wall 36 by providing the notch 18 for pulling operation. Therefore, the circle drawn by the locus a is larger than the circle drawn by the locus b. Accordingly, the disc tray 3, when pulled out, force is applied in the drawing direction of arrow X _1, further, even the disc tray 3 is elastically deformed, can not be removed from the tray housing unit 4, falling off is prevented Will be. Also, the disc tray 3, when a force is applied in the drawing direction of arrow X _2, the disengagement prevention part 16a is to be engaged with the engagement portion 46a, by the disk tray 3 is elastically deformed The engaged state is released, and the disc tray 3 can be detached from the tray housing 4.

The disc tray 3 once removed from the tray housing 4 is attached to the tray housing 4 as follows. That is, first, the drop prevention portion 16b of the tray guide portion 32 is inserted into the predetermined tray guide portion 32 on the first side wall 36 side. Then, the disc tray 3, by being rotationally operated in the direction opposite to the direction of arrow X ₂ in FIG, predetermined tray guide portion of the disengagement prevention part 16a of the guide rail section 15 is the second side wall 37 side 32. At this time, the disc tray 3 is elastically deformed. As a result, the drop-off prevention portion 16a enters the tray guide portion 32 without being obstructed by the locking portion 46 of the tray guide portion 32, and the mounting operation to the tray storage body 4 is completed. It will be. That is, the operation of attaching the disc tray 3 to the tray housing 4 may be performed in the reverse manner of the operation of removing the disc tray 3.

  In this way, the disc tray 3 is prevented from falling out of the tray storage body 4 when the optical tray 2 is pulled out from the normal tray storage body 4 such as an exchange operation. Therefore, according to the disc tray storage device 1, the optical disc 2 can be easily replaced. Further, even when the disc tray 3 is removed from the tray housing 4, the disc tray 3 can be attached to the tray housing 4 by a relatively easy operation.

[Outline of disc player]
Next, the disc reproducing device 50 loaded with the disc tray storage device 1 described above will be described. As shown in FIG. 10, the disc reproducing apparatus 50 includes a loading unit 51 in which the tray housing 4 is loaded, and a reproducing unit 52 that reproduces the optical disc 2 along with the loading unit 51. The disc reproducing device 50 is provided with an opening 53 for insertion / removal of the disc tray storage device 1 on one main surface thereof. Disc tray housing device 1, the tray insertion and removal opening 35 toward the playback unit 52 side is inserted operated during 10 arrow X ₄ direction, it is loaded into the loading section 51. The reproducing unit 52 reads the data by clamping and rotating the optical disk 2 and irradiating the signal recording surface of the optical disk 2 with a laser from the optical pickup and detecting the return light reflected from the signal recording surface. A disk drive playback mechanism is provided. This disk drive reproduction mechanism moves up and down in the reproduction unit 52 to the height of the address of the selected disk tray 3. The disc playback device 50 plays the optical disc 2 by pulling the selected disc tray 3 to the playback section 52, and clamping and rotating the optical disc 2 by a disc drive playback mechanism.

[Description of Disc Tray Storage Device Attachment / Removal Mechanism]
The attaching / detaching operation of the disc tray storage device 1 to / from the loading unit 51 is performed by an attaching / detaching mechanism described below. As shown in FIG. 11, the attachment / detachment mechanism is provided on the bottom surface of the chassis 60 of the disk reproducing device 50, a drive motor 61 that moves the disk drive / reproducing mechanism up and down in the reproducing unit 52, and a transmission mechanism from the drive motor 61 A connection gear 63 rotated through 62 and a first moving body 64 meshed with the connection gear 63 are provided. The transmission mechanism 62 includes a worm gear 65 that is pivotally supported by the drive shaft of the drive motor 61, a first gear portion 66a having a large diameter and a second gear portion 66b having a small diameter that are meshed with the worm gear 65. A second gear 67 having a large-diameter first gear portion 67a and a small-diameter second gear portion 67b meshed with the second gear portion 66b, and a second gear portion 67b. A third gear 68 having a large-diameter first gear portion 68a and a small-diameter second gear portion 68b to be engaged with each other is provided. The second gear portion 68 b is meshed with the connecting gear 63. The connection gear 63 is meshed with a gear part 64 a provided on the first moving body 64. Therefore, the first moving body 64 moves in the direction of the arrow X ₅ or the arrow X ₆ in FIG. 11 when the driving force of the driving motor 61 is transmitted.

  Further, as shown in FIGS. 11 and 12, this attachment / detachment mechanism is pressed by the disc tray storage device 1 and rotated so as to maintain the disc tray storage device 1 in the loading position loaded in the loading unit 51. And a detection lever 71 for detecting that the disc tray storage device 1 is loaded in the loading unit 51.

The lock lever 69 is rotatably supported by the chassis 60 that constitutes the bottom surface of the disk reproducing device 50 by a support shaft 70 planted in the chassis 60. In the middle of the lock lever 69, a lock pin 72 that is pressed against the bottom surface of the disc tray storage device 1 and holds the disc tray storage device 1 in the loading position is planted. The lock pin 72 faces the loading portion 51 through a guide hole 73 provided in the chassis 60. Further, the lock lever 69 is connected to the detection lever 71 via a contraction spring 74. Therefore, the lock lever 69, as shown in FIGS. 11 and 12, in a state where the disc tray housing device 1 is not loaded on the loading section 51, the support shaft 70 in FIG. 11 the arrow X ₈ direction as the rotation fulcrum It is in a state of being urged to rotate. Furthermore, as shown in FIG. 11, the lock lever 69 is provided with a lock release pin 95 that is engaged with an engagement portion 94 provided in the first moving body 64 at the tip end portion thereof. Unlocking pin 95 by the first moving body 64 is moved in the arrow X ₆ direction in FIG. 11, to rotate the lock lever 69 in FIG arrow X ₈ direction.

The detection lever 71 is rotatably supported by the support shaft 75 on the chassis 60 in the vicinity of the lock lever 69. The detection lever 71 is provided with a detection piece 76 that is pressed against the bottom surface of the disc tray storage device 1 and detects whether or not the disc tray storage device 1 is loaded in the loading unit 51 in the middle thereof. The detection piece 76 is exposed to the loading unit 51 from an opening 77 formed in the chassis 60. Then, the detection lever 71, as shown in FIGS. 11 and 12 are rotationally biased in the arrow X ₁₀ direction by contraction spring 74. Detection lever 71 by being pressed by the disc tray housing device 1 is rotated in the arrow X ₉ direction in FIG. 11, and is configured to press the detection switch 78 by its distal end. The detection switch 78 detects that the disc tray storage device 1 has been loaded in the loading unit 51 by being pushed by the tip of the detection lever 71.

  Further, as shown in FIG. 12, the attachment / detachment mechanism is provided with a discharge mechanism 79 of the disk tray storage device 1 at the ceiling of the chassis 60. The discharge mechanism 79 includes a discharge member 81 that discharges the disc tray storage device 1 and two elastic bodies 80 that urge the discharge member 81 in the discharge direction of the disc tray storage device 1.

The discharge member 81 is provided with a discharge portion 82 that abuts against the inner side surface of the disc tray storage device 1 toward the inner side of the loading portion 51 at the side edge located in the depth direction of the loading portion 51. The discharge part 82 faces the inside of the loading part 51 from a guide hole 85 provided from the deepest part of the ceiling of the chassis 60 to the middle of the short side direction of the chassis 60. The discharge member 81 is provided with a long guide hole 83 at the center in the longitudinal direction. Correspondingly to this guide hole 83, an engagement piece 84 provided on the ceiling near the side edge of the guide hole 85 of the chassis 60 on the side of the attaching / detaching opening 53 is engaged. Accordingly, the discharge member 81 is attached to be movable along the short side direction of the chassis 60. Such a discharge member 81 has one end locked to the ceiling surface of the chassis 60 and the other end locked to the discharge member 81 in the direction of the attachment / detachment opening 53, that is, the figure. during 12 is urged in the arrow X ₁₁ direction. That is, the discharge part 82 is moved by the length of the guide hole 85.

  On the other hand, as shown in FIG. 13, the disc tray storage device 1 has a first recess 87 that guides the insertion / removal operation to the loading portion 51 at the center of the other main surface of the tray storage body 4. Is provided. The first concave portion 87 is provided with the insertion end side to the loading portion 51 opened, and is engaged with a plurality of guide pins 88 provided at the center of the bottom surface of the loading portion 51 shown in FIG. As a result, the first recess 87 prevents the disc tray storage device 1 from being erroneously inserted into the loading unit 51 from the wrong direction, aligns the insertion operation, and guides the insertion / removal operation.

  Next to the first recess 87, as shown in FIG. 13, a second recess 89 for holding the disc tray storage device 1 in the loading position is provided. The second recessed portion 89 is provided with the insertion end side of the loading portion 51 open, and is inclined at one side edge to press the lock pin 72 of the lock lever 69 and the first pressing portion 90. The lock portion 91 is provided continuously with the first pressing portion 90 so as to be engaged with the lock pin 72, and is provided on the side facing the first pressing portion 90 and the lock portion 91. A second pressing portion 92 that presses the detection piece 76 of the detection lever 71.

In such a disc tray storage device 1, as shown in FIG. 10, the insertion operation is performed from the attachment / detachment opening 53 to the loading unit 51 in accordance with the display direction of the insertion direction display unit 33. Then, first, as shown in FIG. 12, the disc tray storage device 1 is inserted into the loading unit 51 until the side surface on the insertion end side of the tray storage body 4 abuts against the discharge unit 82 of the discharge member 81, and temporarily loaded. Held in position. Then, the disc tray housing device 1, when further pressed in the insertion direction from the temporary loading position, presses the discharge portion 82 against the contracting force of the elastic body 80 is moved in FIG. 12 the arrow X ₁₂ direction Will be. At this time, the lock lever 69 is rotated in the direction of arrow X _{7 in} FIG. 11 by the lock pin 72 being pressed by the first pressing portion 90 of the second recess 89 provided on the bottom surface of the tray housing 4. It will be. Then, the lock pin 72 is pushed in the insertion direction while being rotated in the direction of the arrow X _{7 in} FIG. 11 and reaches the lock portion 91. is rotated in the X ₈ direction is engaged with the lock portion 91 will be retained in the loaded position. At the same time, the detection lever 71, the detection piece 76 is pressed by the second pressing portion 92 is rotated in 11 arrow X ₉ direction, the tip presses the detection switch 78, the detection switch 78 It is detected that the disc tray storage device 1 is completely loaded in the loading unit 51.

The disc tray storage device 1 is discharged from the loading unit 51 as follows. As shown in FIG. 11, the ejection mechanism of the disk tray housing device 1 is in a state where the lock lever 69 is rotated in the arrow X ₈ direction in FIG. 11, the detection lever 71 is rotated in the arrow in FIG X ₉ direction There is a state that has been. In this state, the driving motor 61 is driven, the first moving body 64 is moved in the arrow in FIG X ₅ direction via the transmission mechanism 62. Then, the engaging portion 94 of the first moving body 64 presses the unlocking pin 95 of the lock lever 69 to rotate the lock lever 69 in FIG arrow X ₇ direction. As a result, the engagement state between the lock portion 91 of the disk tray storage device 1 and the lock pin 72 of the lock lever 69 is released. Then, the discharge mechanism 79, by the elastic force of the elastic body 80, the discharge portion 82 presses the side surface of the insertion end side of the tray body 4 in the discharge direction, the disc tray housing device 1 in FIG. 12 the arrow X ₁₁ direction It is moved and discharged from the loading unit 51. At this time, the detection lever 71, by the elastic force of the contraction spring 74 is rotated in the arrow X ₁₀ direction in FIG. 11, the state of pressing the detection switch 78 is released. Accordingly, the detection switch 74 detects that the disc tray storage device 1 is ejected from the loading unit 51.

[Description of the transport mechanism of the disc tray 3]
In the disc playback device 50, the disc tray 3 is moved from the storage position of the disc tray 3 of the loading unit 51 to the playback position of the playback unit 52 and from the playback position to the storage position by the transport mechanism of the disc playback device 50. It is conveyed to. As shown in FIG. 14, this transport mechanism is provided in an upper chassis 101 to which a disk clamper for clamping the optical disk 2 constituting the drive reproduction mechanism of the optical disk 2 is attached. As shown in FIGS. 14 and 15, the transport mechanism includes a loading motor 102 for driving the transport mechanism, and a disk tray extending from a storage position in the disk tray storage device 1 to a playback position in the playback unit 52. 3, the first rotating arm 105 that is rotated from the loading motor 102 via the drive transmission mechanism 104, the engaging member 103 is rotatably supported at one end, and others And a second rotating arm 106 on which the first rotating arm 105 is rotatably supported.

  As shown in FIGS. 14 and 15, the drive transmission mechanism 104 that transmits the driving force of the loading motor 102 to the first rotating arm 105 is meshed with a worm gear attached to the drive shaft of the loading motor 102. A first transmission gear 108, a cam gear 109 meshed with the first transmission gear 108, a second transmission gear 110 that is coaxial with the cam gear 109 and attached to the upper side of the upper chassis 101, and the upper chassis 101 A first sector gear 111 that is rotatably supported, an intermediate lever 112 that meshes with and rotates with the first sector gear 111 and rotates the first rotation arm 105, and a second transmission. And a second sector gear 113 meshed with the gear 110. The first sector gear 111 is provided with a guide shaft 114. The guide shaft 114 is inserted into a guide hole 115 formed by bending the second sector gear 113 in a substantially C shape, and is stopped by a support member 116, and the first sector gear 111 and the second sector gear 113. And connect. As a result, the second sector gear 113 is restricted in its rotation region. The intermediate lever 112 is rotatably supported by a support shaft 117 planted in the upper chassis 101. The second sector gear 113 is provided with an engagement piece 119 that is engaged with a guide hole 118 provided in the upper chassis 101. As a result, the second sector gear 113 is restricted in its rotation region. In addition to the intermediate lever 112, the first rotating arm 105 and the second sector gear 113 are rotatably supported on the support shaft 117 in a coaxial manner.

  The first rotating arm 105 is provided with a boss 121 and a slit 122 in the middle thereof. The boss 121 is fitted with the base of the elastic body 123. Both ends of the elastic body 123 extend to the slit 122. From the slit 122, a support protrusion 124 provided on the intermediate lever 112 faces between both ends of the elastic body 123. Thereby, the intermediate lever 112 and the first rotation arm 105 are connected, and the first rotation arm 105 is rotated.

Further, the first rotating arm 105 rotatably supports the second rotating arm 106 at the distal end opposite to the base end side on which the first rotating arm 105 is supported. A linear member 125 having an elastic force is attached to the second rotating arm 106 over the first rotating arm 105. One end of the linear member 125 is locked to the first rotating arm 105, the other end is locked to the second rotating arm 106, and the second rotating arm 106 is shown in FIG. biasing the middle arrow X ₁₃ direction. The second rotating arm 106 is provided with a long hole-shaped guide hole 126. The support shaft 103a of the engagement member 103 is engaged and inserted into the guide hole 126 and is rotatably supported. The support shaft 103a of the engagement member 103 is slidably supported according to the guide hole 126. Yes.

  The engaging member 103 is formed in a substantially C shape as a whole, and is engaged with the drawer operating portion 18 of the disc tray 3. The engaging member 103 is provided with a tray retracting section 127 on the loading section 51 side and a tray pushing section 128 on the reproducing section 52 side. The tray pull-in unit 127 comes into contact with the inner surface of the pull-out operation unit 18 when the disk tray 3 is pulled out from the loading unit 51 to the reproduction unit 52. Further, the tray push-out unit 128 is brought into contact with the outer side surface of the pull-out operation unit 18 when pushing out the disc tray 3 from the reproducing unit 52 to the loading unit 51.

Further, the engaging member 103 is moved in the direction of the arrow X ₁₅ or the arrow X _{16 in} FIG. 14 according to the guide hole 129 provided along the side edge of the upper chassis 101. As a result, the locking member 103 performs the operation of pulling out and pushing out the disk tray 3.

The upper chassis 101 is provided with a concave guide portion 129 when the disc tray 3 is pulled into or pushed out from the reproducing portion 52 on the open end side where the disc tray 3 is inserted and removed. Also, the upper chassis 101, the second rotary arm 106 when it is moved in the arrow X ₁₅ direction in FIG. 14, the second rotary arm 106 is abutted position regulating protrusion 131 is provided . The upper chassis 101 is provided with a rotational position restricting protrusion 132 adjacent to the position restricting protrusion 131. When the second rotating arm 106 is moved in the direction of the arrow X _{15 in} the figure according to the guide hole 129 through the engaging member 103, the second rotating arm 106 is first abutted against the position restricting protrusion 131, and then the rotating position restricting protrusion 132. by abutting be enough, it is rotated in the arrow in FIG X ₁₄ direction.

Such a transport mechanism is in a state as shown in FIG. 15 in a state where the disk tray 3 is started to be pulled out from the loading unit 51. That is, in the state where the disk tray 3 is started to be pulled out from the storage position of the loading section 51 to the playback section 52 of the playback section 52, the disk tray 3 is in the storage position, and the first rotating arm 105 is moved to the arrow X in FIG. The second rotating arm 106 is rotated in the ₁₇ direction and is in contact with the position restricting protrusion 131. At this time, the engaging member 103 is located in the drawing while being rotated in the arrow X ₁₃ direction by the elastic force of the linear member 125, the inner side surface of the pulled out portion 18 of the disc tray 3 in the tray pull-in portion 127 It is in a state of being abutted and engaged.

When the loading motor 102 is driven, the state shown in FIG. 16 is obtained. That is, the first rotating arm 105 is moved in the direction of the arrow X _{18 in} the drawing via the drive transmission mechanism 104. Then, the engaging member 103, along the guide hole 129, to be moved reproducing section 52 inwardly, i.e. 15 in toward the arrow X ₁₅ direction. Accordingly, the engaging member 103 pulls the disc tray 3 into the reproducing unit 52. The disc tray 3 is not housed in the reproducing unit 52 but is in a state in which the bottom opening 13 is housed. In other words, the disc tray 3 is stopped by moving the bottom opening 13 where the disc reproducing mechanism necessary for rotating and reproducing the optical disc 2 is exposed into the reproducing unit 52. Thereby, the disk reproducing device 50 can be downsized. In this state, the optical disk 2 is brought into a state in which the reproducing unit 52 can be rotated. Incidentally, the engaging member 103 is in a state in which drawing has been rotated in the arrow X ₁₃ direction by the elastic force of the linear member 125.

Then, the reproduction optical disk 2 is completed, again, when it is moving operation from the playback position of the playback unit 52 in the storage position of the loading unit 51, the first rotary arm 105 in FIG. 16 the arrow X ₁₇ direction The engagement member 103 is moved in the direction of arrow X _{16 in the} same figure according to the guide hole 129. At this time, the pushing portion 128 of the engaging member 103 is brought into contact with the outer side surface of the drawer operation portion 18 of the disc tray 3. As shown in FIG. 17, the engaging member 103 pushes the disc tray 3 and moves it from the reproduction position to the storage position. Then, first, the second rotating arm 106 is brought into a state of being abutted against the position restricting protrusion 131.

Further, the first rotating arm 105 is rotated in the direction of arrow X ₁₇ in FIG. Then, as shown in FIG. 18, the second rotating arm 106 is rotated in the direction of the arrow X ₁₄ against the elastic force of the linear member 125, and is provided adjacent to the position restricting protrusion 131. It is rotated until it is abutted against the rotation position restricting projection 132. Engaging member 103 will be rotated slightly in FIG. 18 the arrow X ₁₄ direction. As a result, the engaging member 103 is in a state in which neither the tray pull-in portion 127 nor the tray push-out portion 128 is brought into contact with the pull-out operation portion 18 of the disc tray 3, The clearance 133 is provided in the above. That is, in the state of the disc tray 3 shown in FIG. 18 from the state of the disc tray 3 shown in FIG. 17, the position of the disc tray 3 is not changed. In the state shown in FIG. 18, the optical disk reproducing mechanism including the upper chassis 101 moves up and down to the position of the disk tray 3 on which the predetermined optical disk 2 is placed.

  At this time, since the clearance 133 is provided between the engaging member 103 and the pulling operation unit 18 of the disc tray 3 when the optical disc reproducing mechanism is moved up and down, the engaging member 103 collides with the pulling operation unit 18. It is prevented. In addition, when the disc tray 3 is stored in the disc tray storage device 1, there is a slight variation in the storage position. Since such a variation is also provided with a clearance 133, the optical disc playback is performed. It does not affect the lifting / lowering operation of the mechanism.

  Further, such a transport mechanism is provided with a position regulating mechanism for positioning the disc tray 3 at the reproduction position when the disc tray 3 is pulled into the reproduction position. This position restricting mechanism includes a position restricting protrusion 136 provided on the inner side of a lower chassis 141 constituting an optical disc reproducing mechanism 140 described later, and the elastic body 123 described above. Then, the disc tray 3 drawn into the reproduction position of the reproduction unit 52 is abutted against a reproduction position restricting projection 136 provided on the inner surface in the depth direction of the optical disc reproduction mechanism, as shown in FIGS. . Specifically, the reproduction position restricting protrusion 136 is formed in a substantially cylindrical shape, and is engaged with a notch 19 provided on the front end side of the disc tray 3. As a result, the disc tray 3 is positioned in the transport direction at the reproduction position.

  Further, as described above, the elastic body 123 is made of a linear member having elasticity, and the base portion 137 configured in a coil shape is provided in the first rotating arm 105 as shown in FIGS. 14 and 16. The boss 121 is fitted and attached. The elastic body 123 has two arms 138 and 139 extending from the base 137. The distal ends of the arms 138 and 139 are locked to locking portions provided on the first rotating arm 105. Such arms 138 and 139 are urged so that their tip portions are close to each other. Then, a support protrusion 124 exposed from the slit 122 is engaged between the arms 138 and 139. Thereby, the first rotating arm 105 is connected to the intermediate lever 112.

The elastic body 123 also functions as follows when the disc tray 3 is pulled into the reproduction position. That is, the disc tray 3 is pulled into the reproduction position by the transport mechanism, and the reproduction position restricting projection 136 is engaged with the notch 19 provided at the front edge of the disc tray 3. Thus, the disc tray 3 is positioned in FIG. 16 in the arrow X ₁₅ direction at the reproduction position is performed.

At this time, when the first rotating arm 105 is rotated in the arrow X ₁₈ direction in FIG. 16 and FIG. 19, the support protrusion 124 of the intermediate lever 112 is pressed against the arm 138 side, further, the elastic force Therefore, it is pushed in a direction away from the arm 139. Thus, the engaging member 103, together with the force of pulling the disc tray 3 in the arrow X ₁₅ direction is generated, the disc tray 3, a force such that the disc tray 3 in the arrow X ₁₉ direction in FIG. 16 rotates Arise. Then, the disc tray 3 comes into contact with the side wall of the tray guide portion 32 by the drop prevention portion 16b provided on the guide rail portion 15. As a result, the disc tray 3 is positioned in a direction orthogonal to the transport direction at the reproduction position.

  Further, as shown in FIGS. 16 and 19, the cutout portion 19 of the disc tray 3 with which the reproduction position restricting protrusion 136 is engaged is provided in a substantially V shape. And the reproduction | regeneration position control protrusion 136 engaged with such a notch part 19 is formed in the column shape. Accordingly, the position restricting projection 136 is always supported by being abutted at two points on the side edges adjacent to each other of the V-shaped notch 19. Therefore, the reproduction position restricting projection 136 can steadily position the disk tray 3 in the transport direction and the direction orthogonal thereto.

  In particular, the disk playback device 50 is used for in-vehicle use. Since the disk tray 3 is steadily positioned at the playback position in this way, large vibrations such as vibration during running of the vehicle are also generated during playback of the optical disk 2. Even if there is, the disc tray 3 is prevented from rattling. Therefore, it is possible to prevent an adverse effect such as a surface wobbling on the optical disk 2 during the rotation operation due to the rattling of the disk tray 3 during the reproduction of the optical disk 2. Further, since the disk tray 3 is accurately positioned at the reproduction position when it is pulled into the reproduction position, the centering portion of the disk table 142 of the optical disk reproduction mechanism 140 and the center hole of the optical disk 2 will be described in detail later. Therefore, the centering portion is securely fitted into the center hole of the optical disc 2 at the time of clamping.

[Description of optical disc playback mechanism]
As shown in FIG. 20, the optical disk reproducing mechanism 140 that rotates the optical disk 2 and reads the information signal recorded on the optical disk includes a lower chassis 141 including a disk table 142 and an upper chassis 101 including a disk clamper. Prepare.

  As shown in FIG. 20, the lower chassis 141 is provided with a disk table 142 rotatably on the insertion end side of the disk tray 3. The disc table 142 is provided with a convex centering portion 143 fitted in the center hole of the optical disc 2 at the center thereof, and a disc holding portion 144 that holds the periphery of the center hole of the optical disc 2 around the centering portion 143. It is provided and is formed in a substantially disk shape as a whole. Such a disk table 142 is pivotally supported by a drive shaft of an optical disk drive motor 145 for rotating the optical disk 2 disposed on the lower surface of the lower chassis 141 on the insertion end side of the disk tray 3. ing.

  The lower chassis 141 is provided with an optical pickup opening 146 that is adjacent to the disk table 142 and faces the optical pickup outward from the disk table 142 side to the inner side of the lower chassis 141. . That is, the optical pickup opening 146 is formed so that laser irradiation can be performed over the inner and outer circumferences of the optical disc 2. The optical pickup 147 facing outward from the optical pickup opening 146 is attached to the lower chassis 141 so as to be able to move in parallel with the signal recording surface of the optical disc 2.

  That is, the transfer mechanism of the optical pickup 147 includes an optical pickup motor 145, a thrust shaft 148 disposed along one longitudinal direction of the optical pickup opening 146 and rotated by the optical pickup motor 145, and the optical pickup A guide shaft 149 disposed along the other longitudinal direction of the opening 146 for use, and a pickup attachment portion 151 attached to the thrust shaft 148 and the guide shaft 149 and holding the optical pickup 147 is provided. The optical pickup 147 moves through the optical pickup opening 146 according to the thrust shaft 148 and the guide shaft 149 when the optical pickup motor 145 is driven. The optical pickup 147 is provided with an optical block that allows a light beam to be incident on the objective lens 152 disposed to face the signal recording surface of the optical disc 2 and to receive reflected light from the objective lens 152. ing.

  The upper chassis 101 is provided with a disk clamper 153 that holds the optical disk 2 in cooperation with the disk table 142 in addition to the above-described transport mechanism for the disk tray 3. The disc clamper 153 is supported by a clamper support member 154 and faces the disc table side from a clamper opening 155 provided at the disc tray 3 insertion end of the upper chassis 101. The clamper support member 154 is rotatably supported and attached to a clamper support member mounting portion 156 provided as an opening at one corner portion on the insertion end side of the disc tray 3. Further, a torsion coil spring 157 is attached to the clamper support member 154 at an end portion on the attachment side to the upper chassis 101. The torsion coil spring 157 has a coil portion attached to a support shaft, a pair of arms extending from the coil portion being locked to a locking portion provided in the upper chassis 101, and the clamper support member 154 as a reproducing portion 52. It is energizing downward toward the.

  The clamper support member 154 is provided with a clamper rotation restricting shaft 158 at the other end. The clamper rotation restricting shaft 158 is engaged with a cam hole 193 of a third slider 163 slidably attached to the side surface of the upper chassis 101. As a result, the clamper support member 154 moves the disc clamper 153 upwardly away from the disc table 142 against the elastic force of the torsion coil spring 157, and the disc clamper 153 moves downward so as to clamp the optical disc 2. Move to.

  The upper chassis 101 has first to third sliders 161 to 163 slidably attached to three side surfaces excluding the insertion end side of the disk tray 3. Specifically, the first slider 161 is slidably attached to the inner side of the reproducing unit 52 and inside the side wall 164 facing the insertion end of the disc tray 3. On the first slider 161, a first first position restricting projection 165 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60 is exposed outward from a guide opening 166 provided on the side wall 164. ing. The first slider 161 is also provided with a second position restricting protrusion 170 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60 at the side edge on the second slider 162 side. The first slider 161 is provided with a long hole-shaped guide hole 168 for slidably supporting the side wall 164. Although not shown, a guide pin provided on the side wall 164 is engaged with the guide hole 168. The first slider 161 is supported by a support piece 169 provided on the side wall 164. The first slider 161 is provided with a connecting shaft 171 for connecting to the second slider 162 at an end adjacent to the second slider 162.

  The second slider 162 is slidably attached to the outer side of one side wall 172 parallel to the transport direction of the disc tray 3. Specifically, the second slider 162 is provided with guide holes 174 for engaging the guide pins 173 provided on the side wall 172 and guiding the slide of the second slider 162 at both ends thereof. . The side wall 172 is provided with a first lifting guide protrusion 175 and a second lifting guide protrusion 180 that guide the lifting operation of the optical disc reproducing mechanism 140. The first raising / lowering guide protrusion 175 faces outward from the opening 176 provided in the second slider 162. A connecting shaft 177 for connecting to the first slider 161 is provided at the end of the second slider 162 adjacent to the first slider 161. Further, the second slider 162 is provided with a guide hole 179 provided in a stepped shape so that the rotation restricting shaft 178 provided in the lower chassis 141 faces outward. As a result, the lower chassis 141 is rotated, and when the optical disk 2 is clamped, the disk table 142 is rotated in the direction approaching the disk clamper 153, and the disk table 142 is rotated in the separating direction. Will be.

  The first slider 161 and the second slider 162 are connected via a connecting member 181. The connecting member 181 has a long hole-like first shaft hole 182 with which the connecting shaft 171 of the first slider 161 is engaged, and a long hole-like shape with which the connecting shaft 177 of the second slider 162 is engaged. A second shaft hole 183 and a third shaft hole 184 that is fitted to a support shaft 185 provided at a rear corner portion of the upper chassis 101 and rotatably supports the connection member 181 are provided. Thereby, the second slider 162 is slid in accordance with the sliding operation of the first slider 161.

  The third slider 163 is slidably attached to the outer side of the other side wall 186 parallel to the conveying direction of the disc tray 3. Specifically, the third slider 163 is engaged with a guide pin (not shown) provided on the side wall 186, and a guide hole 187 for guiding the slide of the third slider 163 is provided. The side wall 172 is provided with a third lifting guide protrusion 188 that guides the lifting operation of the optical disc reproducing mechanism 140. The third lifting guide protrusion 188 faces outward from an opening 189 provided in the third slider 163.

  The third slider 163 is provided with a guide hole 191 provided in a stepped manner so that the rotation restricting shaft 190 provided in the lower chassis 141 faces outward. As a result, the guide hole 191 is rotated together with the guide hole 179 on the second slider 162 side, and when the optical disk 2 is clamped, the disk table 142 rotates in a direction close to the disk clamper 153. In addition, the disk table 142 is rotated in the direction of separating.

  Further, the third slider 163 is provided with a third position restricting protrusion 192 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60. Further, a rising piece is provided in the vicinity of the third position restricting projection 192, and a stepped cam hole 193 for rotating the disk clamper 153 is provided on the rising piece. A clamper rotation restricting shaft 158 of the clamper support member 154 is engaged with the cam hole 193. The third slider 163 slides to rotate the clamper support member 154.

Such a third slider 163 and the first slider 161 are connected by a link mechanism 196 as follows. Further, the first to third sliders 161 to 163 are slid together through the link mechanism 196. As shown in FIG. 21, the link mechanism 196 includes a cam gear 109 that is rotated by the loading motor 102 via a transmission gear 197, and a connecting member 198 that connects the first slider 161 and the third slider 163. And a connecting arm 199 for connecting the connecting member 198 and the cam gear 109. The rotating shaft 201 of the cam gear 109 is connected to the second transmission gear 110 that constitutes the drive transmission mechanism 104 on the upper chassis 101 through the shaft hole 202 of the connection member 198.

  In addition to the shaft hole 202, the connection member 198 is provided with a first connection hole 203 and a second connection hole 204. The first connecting hole 203 is engaged with the first connecting convex portion 205 provided on the third slider 163 side of the first slider 161, and the second connecting hole 204 is connected to the third connecting hole 203. The second connecting projection 206 provided on the first slider 161 side of the slider 163 is engaged, and the connection with the connecting member 198 is achieved.

  The connecting arm 199 is provided with a shaft hole 207 at one end portion, and a support shaft 208 planted in the upper chassis 101 is fitted into the shaft hole 207 and supported rotatably. In addition, the connection arm 199 is provided with a guide hole 211 at the other end thereof in which a connection protrusion 209 provided on the surface of the connection member 198 on the connection arm 199 side is engaged. Furthermore, the connection arm 199 is provided with an engagement pin 213 that is engaged with a spiral cam groove 212 formed in the cam gear 109 on the surface on the cam gear 109 side.

  In such a link mechanism 196, when the loading motor 102 is driven and the cam gear 109 is rotated, the connection arm 199 is rotated according to the cam groove 212. Then, the connection member 198 is rotated according to the rotation operation of the connection arm 199, and the first slider 161 and the third slider 163 connected to the connection member 198 are slid. Further, since the second slider 162 is connected to the first slider 161 via the connecting member 181 as described above, the second slider 162 is slid together with the first slider 161 and the third slider 163.

  As shown in FIG. 20, the upper chassis 101 and the lower chassis 141 are formed in the shaft holes 215 of the lower chassis 141 provided with support convex portions 214 provided on both side edges in the back direction. By being fitted, it is rotatably supported.

The first to third sliders 161 to 163 constituting the optical disc reproducing mechanism 140 are slid as follows when the loading motor 102 is driven. First, a state where the optical disc 2 is not clamped by the disc clamper 153 and the disc table 142 will be described. As shown in FIGS. 20 and 22A, the first slider 161 is slid in the direction of the arrow X ₂₀ on the second slider 162 side.

Therefore, the second slider 162 connected to the first slider 161 via the connecting member 181 is shown by the arrow X on the insertion end side of the disc tray 3 as shown in FIGS. _It has been slid in ₂₁ directions. At this time, the rotation restricting shaft 178 of the lower chassis 141 is positioned at the lower step of the guide hole 179 provided in the second slider 162 in a step shape.

The third slider 163, by the first slider 161 is slid in the arrow X ₂₀ direction, as shown in FIG. 20 and FIG. 22 (C), the state of being slid in the figure the arrow X ₂₂ direction is there. At this time, the rotation restricting shaft 190 of the lower chassis 141 is positioned at the lower step of the guide hole 191 formed in the step shape of the third slider 163. Accordingly, the lower chassis 141 is rotated in a direction away from the upper chassis 101 by positioning the rotation regulating shafts 178 and 190 at the lower step of the guide holes 179 and 191 formed in a step shape. It will be in the state. In other words, the disk table 142 is moved in a direction away from the disk clamper 153.

  At this time, as shown in FIG. 22C, the clamper rotation restricting shaft 158 is positioned at the lower step of the cam hole 193 formed in the step shape provided in the third slider 163. . As a result, the clamper support member 154 is maintained in the state of being rotated upward against the elastic force of the torsion coil spring 157. That is, as shown in FIG. 22D, the clamper support member 154 is rotated upward in the drawing, so that the disk table 142 is positioned substantially on the same plane as the ceiling surface of the upper chassis 101. Evacuate until. At the same time, the lower chassis 141 is rotated in a direction away from the upper chassis 101. As a result, a clearance is provided between the disc table 142 and the disc clamper 153, and a transport operation between the storage position of the disc tray 3 and the reproduction position is enabled.

Next, a state where the disc clamper 153 and the disc table 142 clamp the optical disc 2 will be described. The first slider 161, as shown in FIGS. 20 and 23 (A), from the state shown in FIG. 22 (A), by loading motor 102 is driven, is slid in the arrow in FIG X ₂₃ direction Will be. Along with this, the second slider 162 connected to the first slider 161 via the connecting member 181 is slid in the direction of the arrow X _{24 in} the same figure to be in the state shown in FIG. At this time, the rotation restricting shaft 178 of the lower chassis 141 is shown in FIG. 23B from the lower step shown in FIG. 22B of the guide hole 179 provided in the second slider 162 in a step shape. Moved to the upper stage.

The third slider 163 is slid in the direction of the arrow X ₂₅ as shown in FIGS. 20 and 23C because the first slider 161 is slid in the direction of the arrow X ₂₃ . At this time, the rotation regulating shaft 190 of the lower chassis 141 is shown in FIG. 23C from the lower step shown in FIG. 22C of the guide hole 191 formed in the step shape of the third slider 163. Moved to the upper stage. Accordingly, the lower chassis 141 is rotated in a direction close to the upper chassis 101 by positioning the rotation restricting shafts 178 and 190 on the upper step of the guide holes 179 and 191 formed in a step shape. .

  At this time, as shown in FIG. 23C, the clamper rotation restricting shaft 158 moves from the lower step to the upper step of the cam hole 193 formed in the step shape provided in the third slider 163. Moved. As a result, the clamper support member 154 is rotated downward by the elastic force of the torsion coil spring 157. That is, the clamper support member 154 is rotated downward in the drawing as shown in FIG. Thereby, the disk table 142 slightly lifts the optical disk 2 and clamps the optical disk 2 in cooperation with the disk clamper 153. The optical disk 2 is rotated by driving an optical disk driving motor 145.

  Then, the optical pickup 147 moves in the optical pickup opening 146 by the transfer mechanism, and the light beam emitted from the optical block over the inner and outer circumferences of the optical disc 2 is applied to the signal recording surface of the optical disc 2 by the objective lens 152. Irradiated. At the same time, the reflected light reflected from the signal recording surface enters the optical block via the objective lens 152 and is detected by the photodetector provided in the optical pickup 147. As a result, the information signal recorded on the optical disc 2 is read out.

  By the way, as shown in FIG. 24, the optical disc 2 is prevented from dropping out of the disc storage recess 11 when the disc tray 3 is transported to the playback position, as shown in FIG. For this purpose, a disc restricting mechanism 220 for the optical disc 2 is provided. As shown in FIG. 24, the disc restricting mechanism 220 includes an optical disc restricting member 221 that is rotatably attached to the innermost side of the optical disc reproducing mechanism 140. The optical disc regulating member 221 includes a regulating portion 222 that holds the optical disc 2 and the disc tray 3 provided at one end, a pivot 223 provided at the other end on the side where the regulating portion 222 is not provided, and an optical disc. And an engaging portion 224 that maintains the restricting member 221 at the innermost side of the optical disc reproducing mechanism 140.

  The restricting portion 222 is formed in a substantially C shape as a whole, and includes a first support portion 225 that supports the front end edge of the disc tray 3 where the disc storage recess 11 is provided and the periphery of the optical disc 2, and the disc tray 3. A second support part 226 that holds the front end edge on the back surface side and a third support part 227 that supports the front end edge of the disc tray 3 are provided. The distance between the first support portion 225 and the second support portion 226 is formed to be slightly thicker than the thickness of the front edge of the disc tray 3. Further, the first support portion 225 is a length from the front end edge of the disc tray 3 to above the peripheral portion of the optical disc 2 placed on the disc tray 3 in order to prevent the optical disc 2 from dropping from the disc tray 3. And is longer than the second support portion 226. Further, each of the first support portion 225 and the second support portion 226 is provided with a tapered portion in which each end portion is lowered outward. Thereby, the taper portion makes it easy for the disc tray 3 to enter the restricting portion 222.

Also, pivot portion 223 is pivotally supported by the support shaft 228 formed in erected on the upper chassis 101 inner surface, rotatably supported by the 24 arrow X ₂₅ or the arrow X ₂₆ direction. Further, the engaging portion 224 is provided by protruding from the base portion of the optical disc regulating member 221, and is constituted by a substantially L-shaped rising wall with the regulating portion 222 side opened. An engaging protrusion 231 provided on the first slider 161 is engaged with the engaging portion 224.

  On the other hand, the first slider 161 described above includes a locking portion space portion 229 into which the engaging portion 224 enters. The space 229 is formed by bending the side edge of the first slider 161 into a convex shape. An engagement protrusion 231 that is engaged with the engagement portion 224 is provided on the ceiling surface that is a part of the first slider 161 that constitutes the space portion 229. The engaging protrusion 231 enters when the first slider 161 is slid from the opening side of the engaging portion 224 to be engaged with the engaging portion 224.

The optical disk regulating member 221 supported in this way is connected to the lower chassis 141 by an elastic body 232 made of a coil spring. That is, as shown in FIGS. 20 and 24, the elastic body 232 is locked at one end to a locking portion 233 provided on the pivotal support portion 223 side of the optical disc regulating member 221, and the other end is at the bottom. The side chassis 141 is locked to a locking pin 234 planted in the inner corner portion. As a result, the optical disc regulating member 221 is urged in the direction of the arrow X _{25 in} FIG. 24, which is the direction opposite to the insertion direction of the disc tray 3.

Such disk control mechanism 220, as shown in FIG. 27 (A), in the state the disc tray 3 is not in the playback position, an optical disc regulating member 221 is urged in the arrow X ₂₅ direction by the elastic force of the elastic body 232 The first position.

When the disc tray 3 is conveyed to the reproduction position, the optical disc regulating member 221 is moved to the third support portion of the regulating portion 222 at the first position, as shown in FIGS. 25 and 27B. The front end edge of the disc tray 3 is abutted against 227 and the front end edge of the optical disc 2 and the disc tray 3 is held between the restricting portions 222. At this time, as described above, the first slider 161 is moved in the direction of the arrow X ₂₀ in FIG.

Further, when the disc tray 3 is transported to the reproduction position by the transport mechanism described above, the optical disc restricting member 221 is moved to the third support portion 227 of the restricting portion 222 as shown in FIG. 25 and FIG. 25 is rotated in the direction of arrow X _{26 in} FIG. 25 in the same direction as the insertion direction of the disc tray 3 with the side edge of the disc tray 3 being abutted on and the front end edge of the optical disc 2 and the disc tray 3 being held between the restricting portions 222. The second position indicated by the dotted line in FIG.

Then, the first slider 161 is slid in the arrow X ₂₃ direction in FIG. 25 and 26, as shown in FIG. 26, is in a state where the engaging portion 224 and the engagement projections 231 are engaged. As shown in FIG. 26, the optical disc regulating member 221 is further rotated in the direction of the arrow X ₂₆ from the second position indicated by the dotted line in FIG. 25 when the engaging protrusion 231 enters and is pulled into the engaging portion 224. , And the third position shown in FIG. As a result, the optical disc regulating member 221 is positioned at the innermost side of the optical disc reproducing mechanism 140 that is abutted against the side wall 164. At the same time, the first support portion 225 is retracted from the periphery of the optical disc 2. As a result, as shown in FIG. 27E, the optical disc 2 can be slightly lifted from the disc storage recess 11 of the disc tray 3 and is in a state in which it can be rotated.

The disc regulating mechanism 220 is as follows when the disc tray 3 is transported from the reproduction position to the storage position. That is, as shown in FIG. 26, the optical disc regulating member 221 by the first slider 161 is slid in Figure 26 the arrow X ₂₄ direction, the engagement between the engaging portion 224 and the engaging protrusion 231 It is released and rotated in the direction of the arrow X ₂₅ in the figure by the elastic force of the elastic body 232 and returns from the third position to the first position.

  As shown in FIGS. 27 (B) to 27 (D), such a disc regulating mechanism 220 is used when the disc tray 3 is transported from the storage position to the playback position or when transported from the playback position to the storage position. The first support portion 225 extends from the front edge of the disc tray 3 to the disc storage recess 11 of the disc tray 3 until the optical disc restricting member 221 reaches the third position from the first position or from the third position to the first position. It is positioned over the periphery of the optical disk 2 placed thereon. Accordingly, the optical disk 2 is prevented from protruding from the disk storage recess 11 of the disk tray 3 during conveyance from the storage position to the playback position, and is prevented from dropping from the disk tray 3 in the optical disk playback mechanism 140.

  Such a disc restricting mechanism 220 can steadily restrict the position of the optical disc 2 held on the disc tray 3 even when the disc reproducing apparatus 50 is placed in various postures such as vertically or horizontally. . Further, the disc regulating mechanism 220 can steadily regulate the position of the optical disc 2 even from a large vibration applied to the disc reproducing apparatus 50 such as a vibration generated while the automobile is running.

[Description of lifting mechanism of optical disk playback mechanism]
The optical disc reproducing mechanism 140 described in detail above is moved to a height corresponding to the address of the disc tray 3 selected for reproducing the optical disc 2 in the reproducing unit 52 of the disc reproducing device 50. As shown in FIGS. 11 and 28, this lifting mechanism is a first moving body that is moved via a transmission mechanism 62 and a connecting gear 63 by a drive motor 61 that constitutes the attachment / detachment mechanism of the disk tray storage device 1 described above. 64 and a second moving body 241. The first moving body 64 and the second moving body 241 are moved in a direction orthogonal to the ascending / descending direction of the optical disc reproducing mechanism 140, that is, in the same direction as the conveying direction of the disc tray 3.

  As shown in FIGS. 11 and 28, the first moving body 64 is formed in a substantially L shape as a whole, and has one first side surface 142 of the chassis 60 parallel to the transport direction of the disk tray 3. It is attached along the bottom surface of the chassis 60. As described above, the first moving body 64 is provided with the gear portion 64 a at the side edge located on the bottom surface of the chassis 60 and meshed with the connecting gear 63. Further, the first moving body 64 is provided with a long hole-shaped guide hole 243 on a surface aligned with the first side surface 142, and the guide pin 244 on the chassis 60 side is engaged and guided in the guide hole 243. .

  On the other hand, the first side surface 242 of the chassis 60 is provided with first cam holes 245, 246 and 247 provided in a direction perpendicular to the bottom surface of the chassis 60. A first lifting guide protrusion 175 on the second slider 162 side that constitutes the optical disc reproducing mechanism 140 is engaged with and inserted into the first cam hole 245. The first cam hole 246 is engaged with a rotation restricting shaft 178 on the second slider 162 side of the optical disc reproducing mechanism 140. A second lifting guide protrusion 180 on the second slider 162 side of the optical disc reproducing mechanism 140 is engaged with and inserted into the first cam hole 247. As described above, the first cam holes 245, 246, and 247 are engaged with the first elevating guide protrusion 175, the rotation restricting shaft 178, and the second elevating guide protrusion 180 so that the optical disc reproducing mechanism 140 is engaged. Guides the lifting and lowering movement.

The first moving body 64 has second cam holes 248 and 249 corresponding to the first cam holes 245 and 247 and inclined at a predetermined angle with respect to the first cam holes 245 and 247. Is provided. A first lifting guide protrusion 175 is engaged with the second cam hole 248, and a second lifting guide protrusion 180 is engaged with the second cam hole 249. Such a first moving body 64 is moved in the direction of the arrow X ₅ or the arrow X _{6 in} FIG. 28 via the transmission mechanism 62 and the connecting gear 63 when the drive motor 61 is driven.

  Further, as shown in FIG. 11, the first moving body 64 is provided with a detection mechanism 251 for detecting the position of the optical disc reproduction mechanism 140. The detection mechanism 251 includes a movable terminal portion 252 attached to the chassis 60 side and a fixed terminal portion 253 attached to the first moving body 64 side. The fixed terminal portion 252 is provided at a predetermined angle with respect to the moving direction of the first moving body 64, and a rail portion 254 made of a concave groove is provided at the center thereof. Although not shown, the rail portion 254 is engaged with a movable terminal that is provided in the movable terminal portion and moves in a direction orthogonal to the moving direction of the first moving body 64. When the first moving body 64 is moved, the detection mechanism 251 moves the movable terminal in the direction perpendicular to the moving direction of the first moving body 64 according to the rail portion 254, so that the first moving body 64, that is, the position of the optical disk playback mechanism 140 in the playback unit 52 (address of the disk tray 3) is detected.

  As shown in FIGS. 11 and 28, the second moving body 241 is formed in a substantially L shape as a whole, and is connected to the other second side surface 156 of the chassis 60 parallel to the transport direction of the disk tray 3. It is attached along the bottom surface of the chassis 60. The second moving body 241 is provided with a gear portion 241 a at a side edge located on the bottom surface of the chassis 60 and meshed with the connecting gear 63. Further, the first moving body 64 is provided with a long hole-shaped guide hole 257 on a surface aligned with the first side surface 142, and the guide pin 258 on the chassis 60 side is engaged with and guided by the guide hole 257. .

  On the other hand, the second side surface 256 of the chassis 60 is provided with a first cam hole 258 provided in a direction perpendicular to the bottom surface of the chassis 60. A third lifting guide protrusion 188 on the third slider 163 side that constitutes the optical disc reproducing mechanism 140 is engaged with and inserted through the first cam hole 258. The first cam hole 258 guides the lifting operation of the optical disc playback mechanism 140 by engaging the third lifting guide protrusion 188.

The second moving body 241 is provided with second cam holes 259 corresponding to the first cam grooves 258 and inclined at a predetermined angle with respect to the first cam grooves 258. A third lifting guide protrusion 188 is engaged with the second cam hole 259. Such a second moving body 241 is moved in the direction of arrow X ₅ or arrow X _{6 in} FIG. 28 via the transmission mechanism 62 and the connecting gear 63 when the drive motor 61 is driven.

Such a lifting mechanism is moved in the same direction as the conveying direction of the disk tray 3 by driving the drive motor 61 and rotating the connecting gear 63 via the transmission mechanism 62. Specifically, when the first moving member 64 is connected a gear 63 is moved to rotated in Figure 28 the arrow X ₅ in one direction, the second moving body 241, the moving direction of the first moving body 64 It will be moved in the arrow X ₆ direction opposite directions. Further, On the contrary, when the first moving member 64 is connected a gear 63 is moved to rotated in Figure 28 the arrow X ₆ direction in the other direction, the second moving body 241, the first mobile 64 will be moved in the arrow X ₅ direction opposite direction to the moving direction of the. At this time, in the optical disk reproducing mechanism 140, the first lifting guide protrusion 175, the second lifting guide protrusion 180, and the third lifting guide protrusion 188 are lifted and lowered according to the second cam holes 248, 249, and 259. Then, the optical disc reproducing mechanism 140 is moved up and down to a position corresponding to the address of the disc tray 3 selected by the user.

  Further, as shown in FIG. 28, the lifting mechanism is provided with two first positionings provided on the third side wall 263 adjacent to the first and second side walls 242 and 256 inside the reproduction unit 52 of the chassis 60. Mechanisms 261a and 261b and a second positioning mechanism 262 provided on the second side wall 256 are provided. The first and second positioning mechanisms 261 a, 261 b, and 262 position the optical disc playback mechanism 140 in the playback unit 52. The first positioning mechanism 261a is provided corresponding to the first position restricting protrusion 165 on the first slider 161 side of the optical disc reproducing mechanism 140, and the first positioning mechanism 261b is the first positioning mechanism 261b on the first slider 161 side. 2 corresponding to the two position restricting projections 170. The second positioning mechanism 262 is provided corresponding to the third position restricting protrusion 192 provided on the third slider 163 side of the optical disc reproducing mechanism 140.

  As shown in FIGS. 28 and 29, the first positioning mechanisms 261a and 261b are configured by forming holes in the third side wall 263a, and are provided in the same direction as the optical disk reproducing mechanism 140 moving up and down. First lift guide portions 264a, 264b, first slide guide portions 265a, 265b provided in a direction orthogonal to the upward / downward movement direction of the optical disc reproducing mechanism 140, and above the first slide guide portions 265a, 265b. It is comprised from the 1st positioning recessed part 266a, 266b provided toward the direction. The first slide guide portions 265 a and 265 b and the first positioning recesses 266 a and 266 b are provided corresponding to the number of sheets that can be stored in the disc tray storage device 1.

As shown in FIG. 29, the first raising / lowering guide portions 264a and 264b are passages for the first and second position restricting projections 165 and 170 when the optical disc reproducing mechanism 140 moves up and down. It is provided corresponding to the up-and-down movement area. The first slide guide portion 265a, 265b is the first slider 161 in FIG. 24 in the arrow X ₂₃ direction when the optical disk reproducing mechanism 140 in the direction perpendicular to the transport direction of the disc tray 3 clamps the optical disc 2 It is provided corresponding to the area to move. The first positioning recesses 266a and 266b are provided in a substantially V shape, and when the first and second position restricting protrusions 165 and 170 are abutted, the first and second position restricting protrusions 165 and 170 are provided. Are formed so that the two peripheral edges of the two are abutted.

The second positioning mechanism 262 is configured by forming a hole in the second side wall 256, and is provided with a second lifting guide portion 267 provided in the same direction as the moving direction of the optical disk playback mechanism 140, and an optical disk playback. a second slide guide portion 268 provided towards in FIG. 28 is a discharge direction of the disc tray 3 in the arrow X ₆ direction in the direction perpendicular to the vertical movement direction of the mechanism 140, above the second slide guide portion 268 It is comprised from the 2nd positioning recessed part 269 provided toward the direction. The second slide guide portion 268 and the second positioning recess 269 are provided corresponding to the number of sheets that can be stored in the disc tray storage device 1.

As shown in FIG. 29, the second raising / lowering guide portion 267 is a path of the third position restricting projection 192 when the optical disc reproducing mechanism 140 moves up and down, and corresponds to the up and down movement region of the optical disc reproducing mechanism 140. Is provided. The second slide guide portion 268 corresponds to a region where the third slider 163 moves in the direction of the arrow X _{25 in} FIG. 24 when the optical disc reproducing mechanism 140 clamps the optical disc 2 in the same manner as the transport direction of the disc tray 3. Is provided. The second positioning recess 269 is provided in a substantially V shape and is formed such that when the third position restricting protrusion 192 is abutted, two peripheral edges of the third position restricting protrusion 192 are abutted. ing.

The lifting mechanism of the constructed optical disc drive 140 as is when the drive motor 61 is driven to rotate the connection gear 63 in one direction, the first moving body 64 is moved in the arrow X ₅ direction in FIG. 28, When the second mobile 241 is moved in the arrow in FIG X ₆ direction, to move the optical disc playback mechanism 140 downward. The vertically moving mechanism, when the drive motor 61 is driven to rotate the connection gear 63 in the other direction, the first moving body 64 is moved in FIG. 28 the arrow X ₆ direction, the second moving body 241 is drawing When it moved in the arrow X ₅ direction to move the optical disc playback mechanism 140 upward. As a result, the first position restricting protrusion 165, the second position restricting protrusion 170, and the third position restricting protrusion 192 move up and down the first and second lifting guide portions 264a, 264b, and 267 in FIG. . As described above, the optical disk reproducing mechanism 140 is moved up and down to a position corresponding to a predetermined address of the disk tray 3 by the lifting mechanism.

Then, the optical disk reproducing mechanism 140 is retracted to the playback position a predetermined disc tray 3 from the housed position, the operation of clamping the optical disc 2 is started, the first slider 161 is slid in the arrow X ₂₀ direction as described above , also will be slid in the arrow X ₂₂ direction third slider 163 linked thereto. Then, as shown in FIG. 29, the first position restricting protrusion 165 and the second position restricting protrusion 170 provided on the first slider 161 are moved from the first lifting guide portions 264a and 264b to the first slide guide. It is moved until it abuts against the ends of the portions 265a, 265b. Similarly, the third position restricting protrusion 192 provided on the third slider 163 is also moved from the second elevating / lowering guide portion 267 until it abuts against the end portion of the second slide guide portion 268.

Thereafter, the elevating mechanism moves the first moving member 64 in FIG. 28 in the arrow X ₆ direction, the second moving body 241 is moved in the arrow in FIG X ₆ direction, moving the optical disc playback mechanism 140 upward Let Accordingly, the first position restricting protrusion 165, the second position restricting protrusion 170, and the third position restricting protrusion 192 are moved from the first and second slide guide portions 265a and 265b to the first and second positioning recesses. 266a, 266b, and 269. As a result, the optical disc reproducing mechanism 140 is positioned at a position corresponding to a predetermined address of the disc tray 3. In this state, the optical disc reproducing mechanism 140 rotates the optical disc 2 to read out an information signal.

  As shown in FIG. 29, such an elevating mechanism has a first position restricting protrusion 165, a second position restricting protrusion 170, and a third position restricting protrusion 192, which are first and second positioning recesses 266a, 266b. 269 is abutted at two points, and positioning can be performed accurately. That is, the elevating mechanism is positioned in the X-axis direction in FIG. 28 by causing the two points of the first and second position restricting protrusions 165 and 170 to abut on the first positioning recesses 266a and 266b in the reproducing unit 52. The third position restricting projection 192 is abutted against the second positioning recess 269 and positioned in the Y-axis direction in FIG. Further, the elevating mechanism has the first position restricting protrusion 165, the second position restricting protrusion 170, and the third position restricting protrusion 192 projecting upward from the first and second position restricting recesses 266a, 266b, 269. By being applied, positioning in the Z-axis direction in FIG. 28 is performed. Therefore, according to such an elevating mechanism, it is possible to prevent the optical disk reproducing mechanism 140 from rattling even when a large vibration such as vibration during driving of the automobile is applied to the disk reproducing apparatus 50. It is also possible to prevent the optical disc from being shaken during the rotation operation.

  Of course, the first and second positioning mechanisms 261a, 261b, and 262 described in detail above may be provided at least one on each adjacent side surface, and may be provided on the first side surface. The number of positioning mechanisms is not limited to this.

As described above, the present invention has been described in detail using the disk reproducing apparatus 50, but the present invention is not limited to this, and can be applied to a disk recording and / or reproducing apparatus. Further, the present invention is not limited to the on-vehicle disk reproducing device as described above.

It is an external perspective view of a disk tray storage device. It is the whole perspective view which looked at the disc tray from the front side. It is the whole perspective view which looked at the disk tray from the back. It is a see-through | perspective perspective view for demonstrating the tray guide part provided in the inner wall of a tray storage body. It is a principal part top view of a disc tray and a tray guide part. FIG. 6 is a cross-sectional view taken along the line AA shown in FIG. 5, specifically, a cross-sectional view of a tray guide portion and a guide rail portion fitted to the tray guide portion. It is a figure for demonstrating the state which the 1st protrusion part and 2nd protrusion part of the disk tray contact | abutted. It is a top view for demonstrating the relationship between the optical disk in a reproduction | regeneration position, and the 2nd protrusion part of a disk tray. It is a top view for demonstrating removal operation of the disc tray from a tray storage body. 1 is an external perspective view of a disc playback device and a disc tray storage device. FIG. It is a bottom view as viewed from the bottom side of the chassis of the disc reproducing apparatus for illustrating the attaching and detaching mechanism of the disc tray housing device. It is a top view for demonstrating the discharge mechanism of the disc tray storage apparatus provided in the chassis ceiling of the disc reproducing | regenerating apparatus. It is the perspective view which looked at the disk tray storage apparatus from the other main surface side. It is a disassembled perspective view of a conveyance mechanism. FIG. 10 is a plan view showing when the transport mechanism starts to pull the disc tray from the storage position to the reproduction position. FIG. 6 is a plan view showing a state in which the transport mechanism has pulled the disc tray into the reproduction position. FIG. 6 is a plan view of the main part around the engaging member showing a first state in which the transport mechanism pushes the disc tray from the reproduction position to the storage position. FIG. 10 is a plan view of the main part around the engaging member showing a second state in which the transport mechanism pushes the disc tray from the reproduction position to the storage position. It is the top view which showed notionally the conveyance mechanism used in order to demonstrate positioning of the disc tray in a reproduction | regeneration position. It is an exploded perspective view of an optical disk reproducing mechanism. It is a disassembled perspective view of the link mechanism which connects a 1st slider and a 3rd slider. In a state where the optical disc is not clamped, (A) is a side view of the optical disc playback mechanism viewed from the first slider side, and (B) is a side view of the optical disc playback mechanism viewed from the second slider side. (C) is a side view of the optical disc playback mechanism as viewed from the third slider side, and (D) is a side view of the optical disc playback mechanism as viewed from the front side. In a state where the optical disk is clamped, (A) is a side view of the optical disk reproducing mechanism viewed from the first slider side, and (B) is a side view of the optical disk reproducing mechanism viewed from the second slider side. FIG. 7C is a side view of the optical disk reproducing mechanism viewed from the third slider side, and FIG. 10D is a side view of the optical disk reproducing mechanism viewed from the front side. It is a disassembled perspective view for demonstrating the disc control mechanism of an optical disk. It is a top view which shows the 1st position where a disk tray approachs a disk control mechanism. It is a top view which shows the state of the disk control mechanism at the time of reproduction | regeneration of an optical disk (3rd position). It is a figure which shows the state of the optical disk and disc tray which are regulated by the optical disc regulating member, and more specifically, (A) is a side view showing a state where the disc tray is not approaching the disc regulating mechanism in the first position. FIG. 7B is a side view showing a state in which the optical disc and the disc tray are held between the restricting portions at the first position, and FIG. 7C is a side view of the restricting portion at the second position. (D) is a side view of the restricting portion at the third position, and (E) is a side view of the restricting portion when the optical disc is clamped. It is a whole perspective view of the disc reproducing apparatus used for explaining the raising / lowering mechanism of the optical disc reproducing mechanism. It is a figure for demonstrating the position control part in which the chassis of an optical disk reproduction | regeneration mechanism is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc tray storage device, 2 Optical disc, 3 Disc tray, 4 Disc tray storage part, 11 Disc storage recessed part, 13 Bottom opening part, 15 Guide rail part, 16 Drop-off prevention part, 17 Gap | interval guarantee protrusion, 18 Pull-out operation part, 19 Notch portion, 21 locking portion, 23 first projection portion, 24 second projection portion, 31 outer casing, 32 tray guide portion, 35 tray insertion / removal opening portion, 36 first side surface, 37 second portion Side, 38 Notch portion for drawer operation, 42 First support portion, 43 Second support portion, 44 Disc restricting portion, 46 engaging portion, 50 Disc playback device, 51 Loading portion, 52 Playback portion, 53 Detachable opening Part 61 driving motor 64 first moving body 69 lock lever 71 detection lever 72 lock pin 74 contraction spring 79 discharge mechanism 101 upper chassis 102 load Motor, 103 engaging member, 105 first rotation lever, 106 second rotation lever, 109 cam gear, 123 elastic body, 124 support protrusion, 125 linear member, 131 position restriction protrusion, 132 rotation restriction Protrusion, 136 Position restricting protrusion, 140 Optical disc playback mechanism, 141 Lower chassis, 142 Disc table, 147 Optical pickup, 153 Disc clamper, 154 Clamper support member, 161 First slider, 162 Second slider, 163 Third Slider, 165 first position restricting protrusion, 170 second position restricting protrusion, 175 first lifting guide protrusion, 178 rotation restricting shaft, 180 second lifting guide shaft, 188 third lifting guide shaft, 192 first 3 position restricting protrusion, 220 disc restricting mechanism, 221 optical disc restricting member, 222 restricting portion 231 engaging protrusion, 232 elastic body, 234 locking pin, 241 second moving body, 245, 246, 247 first cam hole, 248, 249 second cam hole, 258 first cam hole, 259 first 2 cam holes, 261 first positioning mechanism, 262 second positioning mechanism, 264 first lifting guide section, 265 first slide guide section, 266 first positioning recess, 267 second lifting guide section, 268 Second slide guide portion, 269 Second positioning recess

Claims (3)

A plurality of disk holding means for holding the disk;
Storage means in which the plurality of disk holding means are stacked and stored in parallel with each other;
Guide means provided in the storage means so that the disk holding means is conveyed perpendicularly to the stacking direction from the storage means;
Conveying means for conveying the disk holding means according to the guide means over a storage position where the disk holding means is stored in the storage means and a recording / reproducing position where recording and / or reproduction of the disk is performed;
The guide means includes a first support portion that supports a lower surface side of the disk holding means;
A second support part for supporting the upper surface side of the disk holding means,
The first support portion supports the disk holding means so as to be gently lowered from the storage position to the recording / reproducing position by the guide means when being transported from the storage position to the recording / reproducing position,
The disk holding means is provided with a first gap ensuring means that comes into contact with the second support portion in order to secure a gap between the disk holding means adjacent to each other vertically.
The disc recording and / or reproducing apparatus according to claim 1, wherein the second support portion is provided with a disc restricting portion for restricting a storage position of the disc held by the disc holding means.   Protruding portions provided on the upper surface of the rear end side of the disk holding means at the recording / reproducing position and the lower surface of the front end side of the disk holding means at the storage position above the disk holding means are in contact with each other. 2. The disk recording and / or reproducing apparatus according to claim 1, further comprising second gap ensuring means for ensuring a gap between the holding means.   3. The disk recording and / or reproducing according to claim 2, wherein the protrusion provided on the lower surface of the front end side of the disk holding means in the storage position regulates the disk held by the disk holding means being transported. apparatus.

Images