JP3022224B2 - Magazine for recording and playback discs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine for recording / reproducing discs which accommodates a plurality of recording / reproducing discs and which is attached to and detached from a recording / reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, as a recording / reproducing apparatus adopting a recording / reproducing method for selectively recording / reproducing one of a plurality of superimposed recording / reproducing discs, for example, a compact disc (hereinafter referred to as a CD) is reproduced. There is a CD changer that performs

[0003] This CD changer is disclosed in
As described in Japanese Unexamined Patent Publication No. 85992 or Japanese Unexamined Utility Model Application Publication No. Sho 62-90452, there is provided a magazine for accommodating, for example, six CDs in a stack, and a changer device for setting and reproducing the magazine. . The changer device includes a magazine insertion space for accommodating a magazine to be set, and a reproduction space portion for pulling out an arbitrary compact disk from the magazine in a direction parallel to the disk radial direction and performing reproduction on a side of the magazine insertion space. And

However, in this CD changer, it is necessary to separately provide a magazine insertion space and a reproduction space in the changer device, and the changer device is relatively large. Therefore, for example, in the case of a six-unit CD changer for a car, it is impossible to install the changer device in the central portion of the dashboard. Therefore, only the controller is incorporated in the central portion, and the changer device is separately installed in a trunk or the like. ing.

Therefore, as described in, for example, JP-A-3-235248, the magazine inserted into the magazine insertion space of the changer device is disassembled in the disk stacking direction, and the magazine formed between the holders is disassembled. By inserting a playback unit incorporating a CD rotation drive motor and a laser pickup into the gap, and performing CD playback in the magazine insertion space, there is no need to provide a separate playback space, and the lateral area of the changer device is reduced by about half. A compact CD changer has been proposed.

The magazine used in the CD changer has a pair of upper and lower halves provided so as to be vertically disassembled from each other, and holds a recording / reproducing disk between the upper and lower halves. Are arranged without being connected to each other. This magazine assembly and disassembly structure is provided with a plurality of cylinders on the peripheral edge of the lower half, and a locking member that can be disengaged from the disk circumferential direction at the upper end of each cylinder on the inner surface of the upper half. It is provided as possible.

When the magazine is assembled, the upper half and the lower half are connected to each other by the engagement of the locking members with the upper ends of the columns, and the upper half and the lower half are joined together. And a plurality of holders. When disassembling the magazine, the engaging member is rotated to release the engagement with each of the columns, and the upper half and the lower half are disassembled from each other. The holder can be moved between.

[0008]

However, in the magazine described in JP-A-3-235248, a plurality of columns provided on the lower half and a locking member provided rotatably on the upper half are disclosed. The upper half body and the lower half body are assembled and disassembled with each other by the assembly and disassembly structure, so that the assembly and disassembly structure is complicated, and the assembly and disassembly are performed due to the variation in the engagement positions between the plurality of columns and the locking members. However, there is a problem that high accuracy is required to reliably assemble and disassemble over a long period of time.

Further, since the locking member is provided on the inner surface side of the upper half body in which the CD is stored, if the magazine is to be housed within a certain vertical dimension, the number of CDs to be connected is equal to that of the locking member. On the other hand, if it is attempted to secure the number of consecutively mounted CDs, for example, about six, there is a problem that the magazine becomes thicker in the disk stacking direction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a simple structure that can be reliably opened and closed with a simple structure, and that allows a plurality of recording / reproducing disks within a certain vertical dimension to be provided in multiple units. The purpose is to provide a magazine.

[0011]

A magazine for a recording / reproducing disc according to the present invention comprises an outer body, an inner body fitted inside the outer body, and an outer body on the side where the outer body and the inner body overlap. The body and the inner body are rotatable in mutually opposite disk circumferential directions, and are connected to and separated from each other in the disk stacking direction with the rotation in the disk circumferential direction so that they can be opened and closed. Holding means, a plurality of holders provided in the inner body so as to be movable in the disk stacking direction with rotation in the disk circumferential direction, and respectively holding a plurality of recording / reproducing disks; the outer body and the inner body And a lock body in which a lock release portion for unlocking the lock is projected outwardly.

[0012]

In the magazine for a recording / reproducing disk according to the present invention, the outer body and the inner body rotate in mutually opposite disk circumferential directions and are rotated in the disk circumferential direction by the connection holding means for holding the connected state. The outer body and the inner body open and close as they move in contact with and separate from each other in the disk stacking direction. When the outer body and the inner body are opened, a plurality of holders in the inner body can be moved in the disk stacking direction for recording / reproducing a recording / reproducing disk. Further, when the magazine is not inserted into the recording / reproducing apparatus, the outer body and the inner body are locked in a closed state by the lock body, and when the magazine is inserted into the recording / reproducing apparatus, the unlocking portion of the lock body is pushed. The lock is released.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, a description will be given of a CD changer as a recording / reproducing apparatus which handles a reproduction-only compact disc (hereinafter, referred to as a CD) as a recording / reproducing disc.

[0015] As shown in FIG.
The magazine 1 includes a magazine 1 for storing D, and a changer device 2 for mounting and reproducing the magazine 1.

The magazine 1 is provided with an outer body 11 and an inner body 12 as shown in FIG. 1 (in which the outer body 11 is opened while changing its direction) or FIG. 3, and is inserted into the changer device 2. An opening 13 is formed on the end face in the insertion direction.

The outer body 11 includes an upper plate portion 14 and the upper plate portion 14.
It is integrally formed from a peripheral wall portion 15 extending downward from the lower surface except for the opening portion 13, a parallel side wall portion 16 on both sides in the magazine insertion direction, and a side wall portion 17 opposite to the magazine insertion direction. Both edges facing the opening 13 of the peripheral wall portion 15 are formed with inclined edges 18 inclined downward and leftward, and guide grooves 19 are formed in parallel with the inner edge of each inclined edge 18. At three locations on the inside of each inclined edge 18 of the peripheral wall portion 15 and on the inner surface facing the opening 13, inclined projections 20 having the same inclination as the inclined edge 18 are formed to project.

The inner body 12 is formed integrally with a substantially circular bottom plate portion 21 and a peripheral wall portion 22 protruding upward from the periphery of the bottom plate portion 21 except for the opening 13. Both edges facing the opening 13 of the peripheral wall portion 22 are formed with an inclined edge portion 23 having the same inclination as the inclined edge portion 18 which is inclined leftward and downward, and the outer side is provided on the inside facing the opening portion 13 of the peripheral wall portion 22. A guide groove 24 with which the inclined protrusion 20 of the body 11 is engaged is formed. Surrounding wall 22
The inclined projections 25 having the same inclination as the inclined edges 23 and the like are formed at three places on the inside of each inclined edge 23 and on the side of the guide groove 24. One end of the peripheral wall 22 has a closing projection on the outer surface.
26 are protrudingly formed. Furthermore, the opening 13 of the bottom plate 21
An opening projection 27 is formed at the edge portion facing.

The inner body 12 is incorporated inside the lower surface of the outer body 11, and the inclined projection 20 and the guide groove 24 are slidably engaged with each other.
A screw 29 is screwed to the inner body 12 via a slide member 28 that slidably engages with the inner body 12, and when the inner body 12 rotates counterclockwise with respect to the outer body 11 due to their engagement structure. It moves downward and moves upward when turned clockwise. Note that the slide member 28 and the screw 29 constitute a connection holding unit for connecting the outer body 11 and the inner body 12.

Between the outer body 11 and the inner body 12,
A plurality of holders 30 each mounting a CD one by one, and a separator 31 arranged between the holders 30 are arranged in an overlapping manner.

The holder 30 is formed in a disk shape having a fan-shaped notch 32 facing the opening 13, and a holding wall 33 for holding a peripheral portion of a mounted CD is formed on a peripheral upper surface thereof. Grooves 34, 35 with which the respective inclined projections 20, 25 are respectively engaged are formed at three positions on the peripheral edge, and a selection lever 36 is formed to protrude outward from the peripheral edge at one end facing the notch 32. The selection levers 36 of the holders 30 are arranged so as to be lined up and down in a closed state as shown in FIG.

The separator 31 is formed in a disk shape having a hole 37 at the center, and each of the inclined projections 20 and 25
A guide member 40 in which grooves 38 and 39 with which are engaged is formed. Guide member 40 facing the other end of opening 13
The positions of the opening levers 41 are arranged so as to be lined up and down in a closed state as shown in FIG.

Then, as shown in FIG. 3, for example, as shown in FIG. 3, the magazine 30 is rotated counterclockwise along with the inner body 12 with respect to the holder 30 on which the selected CD is mounted, so that the lower side thereof is rotated. The holder 30 moves downward while rotating counterclockwise, and a gap is formed between the holder 30 and the upper holder 30, and the reproducing operation of the selected CD is performed through the gap. When the magazine 1 is opened, the selection lever 36 of the lower holder 30 that has been moved with respect to the position of the selection lever 36 of the holder 30 that is not moved moves counterclockwise and downward, and the separator 31 that is not moved is opened. Lever for opening lower separator 31 moved with respect to position of lever 41
41 moves counterclockwise downward.

On both side wall portions 16 of the outer body 11, a magazine-side rack gear 42 and a guide portion 43 are formed along the magazine insertion / removal direction. Guide piece under the guide part 43
44 are protrudingly formed.

The peripheral wall 15 of the outer body 11 and one side wall 16
A lock body 45 that locks the outer body 11 and the inner body 12 in a closed state is disposed between the lock member 45 and the lock member 45. The lock body 45 has an intermediate portion rotatably mounted by a pin 46, and a claw portion 47 formed at one end so as to be able to protrude inside the peripheral wall portion 15 through a window hole 15a formed in the peripheral wall portion 15. At the other end, a lock release portion 48 is formed which can project outside the side wall portion 16 through a window hole 16a formed in the side wall portion 16. The pin 46 has a claw part 47 and an unlock part
A spring 49 is attached to bias 48 in a direction in which it protrudes from the window holes 15a and 16a.

When the outer body 11 and the inner body 12 are closed, the claw 47 projecting from the window hole 15a engages with a locking hole 22a formed in the peripheral wall 22 of the inner body 12 to lock. I do. In this locked state, the unlocking section 48 is
When the lock release portion 48 is pushed inward against the bias of the spring 49, the claw portion 47 is
It can be unlocked by removing from a.

Next, as shown in FIG. 7, the changer device 2 includes a case 51 as a recording / reproducing device main body.
The case 51 is formed in a substantially square frame shape having a size slightly larger than the magazine 1, and a magazine loading portion 52 is formed in the case 51, and the magazine 1 is inserted into and removed from the front of the magazine loading portion 52. An insertion port 53 is formed.

In the case 51, eject units 55 (shown in FIGS. 4A and 4B) are arranged on both sides of the magazine loading section 52, and a CD is played at the far corner of the magazine loading section 52. A reproducing unit 56 as a recording / reproducing unit for performing is provided,
A selection unit 57 for selecting a CD to be played is provided on one side of the magazine loading unit 52, and an opening / closing unit 58 as an opening / closing mechanism for opening / closing the magazine 1 is provided at a lower rear portion of the magazine loading unit 52. Unit 57 and opening / closing unit 58
A drive unit 59 as a transmission mechanism for transmitting a driving force to the drive unit 59 is provided.

The eject unit 55 is shown in FIGS.
As shown in FIG. 5, the guide members 61 are attached to the inside of both side plates 51a facing the insertion opening 53 of the case 51. The guide member 61 is formed with a guide surface 62 for guiding both side walls 16 of the outer body 11 of the magazine 1 to be inserted into and removed from the magazine loading portion 52. The guide surface 62 has a magazine-side rack gear 42 and a guide. A guide groove 63 with which the portion 43 is engaged is formed, and a guide surface 62 and an introduction surface 64 inclined toward the guide groove 63 are formed at an end facing the insertion port 53.

A concave portion is formed substantially at the center of the guide surface 62 of the guide member 61.
A fixed rack gear 66 is formed on the inner wall surface of the recess 65 along the magazine insertion / removal direction, and a long hole 67 is formed on the upper and lower wall surfaces along the magazine insertion / removal direction.

A pinion gear 68 meshing with the fixed rack gear 66 is disposed in the recess 65, and the upper and lower ends of a rotating shaft 69 penetrating the pinion gear 68 are inserted into the elongated holes 67. The upper and lower ends of a rotating shaft 69 protruding from the long hole 67 are rotatably attached to a slide member 70. The slide member 70 is slidable in the magazine insertion / removal direction with respect to the guide member 61, and A slide member 70 is provided by a spring 71 as an urging means stretched between the slide member 70 and the guide member 61.
And the pinion gear 68 is urged in the ejecting direction of the magazine 1.

A magazine lock mechanism (not shown) for locking the magazine 1 inserted into a predetermined position of the magazine loading section 52 is provided, and as shown in FIG.
An eject lever 72 for releasing the lock by the magazine lock mechanism is attached to the inner surface of one side plate 51a of the case 51. The eject lever 72 is slidably attached to the inner surface of the side plate 51a along the magazine insertion / removal direction, and is attached in the eject direction of the magazine 1 by a spring 74 stretched between the eject lever 72 and a pin 73 attached to the side plate 51a. It is being rushed.

The eject lever 72 has a magazine 1
An eject operation prohibiting means 75 for preventing an eject operation at the time of opening is installed. The ejecting operation prohibiting means 75 is configured such that a lock lever 76 is swingably attached by a screw 77 facing an end 72a of the eject lever 72, and an engaging portion 76a at one end of the lock lever 76 is attached by a spring 78 attached to the screw 77. It is urged to the lock position (the position indicated by the solid line in FIG. 5) which engages with the end 72a. At the other end of the lock lever 76, there is formed a contact portion 76b with which a slide body 171 of the opening / closing unit 58 contacts when the magazine 1 is closed. When the contact portion 76b is pressed, the operation of the eject lever 72 is performed. To the lock release position (two-dot chain line in FIG. 5) that allows

As shown in FIG. 6, the bottom surface of the insertion port 53 is formed by the bottom plate 51b of the case 51, and the edge of the bottom plate 51b facing the magazine loading section 52 is inclined toward the insertion port 53. A guide plate 51c is formed as a means. When the magazine 1 is ejected in a state where the inner body 12 is not completely closed due to the bottom protruding from the lower edge of the outer body 11, the lower part of the inner body 12 contacts the guide plate 51c, Inner body 12 by tilting 51c
Is lifted up and the outer body 11 is closed.

Next, as shown in FIGS. 7 to 11, the reproducing unit 56 includes a base 81, an arm 82 having a base end attached to the base 81, a turntable 83 attached to a distal end side of the arm 82, and Motor as drive
M1 and a head 85 mounted on the arm 82.

The base 81 is formed in a plate shape, and has a cylindrical portion 91 which is a center of rotation protrudingly formed on the upper surface thereof.
A recess 93 for the standby position and a recess 94 for the reproduction position are formed at the peripheral edge of the projection through a rib 92. Cylindrical part
A female screw (not shown) is formed on the inner periphery of the 91, and a fan-shaped gear portion 95 is formed to protrude on the upper side of the outer periphery.

The arm 82 has a pair of arm portions 101a and 101b, a base end side mounting plate 102 is formed on the base end side of the pair of arm portions 101a and 101b, and a front end side mounting plate 103 is formed on the front end side. Is formed. The base-side mounting plate 102 has a notch 104 through which the cylindrical portion 91 is inserted. As shown in FIG. 9, the base 81 is formed by two connecting means 105 and one adjusting means 106.
Attached to.

The connecting means 105 is disposed near the connecting portion of each of the arm portions 101a and 101b on the arm tip side with respect to the cylindrical portion 91. A hollow bush 107 made of rubber or the like is provided in a mounting hole 96 formed in the base 81. The sleeve 108 is inserted into the center of the bush 107 from below, and the pressing plate 109 of the sleeve 108 is pressed against the lower surface of the bush 107, and the connecting screw 110 is screwed into the base-side mounting plate 102 through the sleeve 108. Have been combined. A bush 107 is sandwiched between the base-side mounting plate 102 and the pressing plate 109, and a base 81 is supported at an intermediate portion of the peripheral surface of the bush 107. The base 81, the base-side mounting plate 102, and the sleeve A bush 107 is interposed between the connecting screw 108 and the connecting screw 110. The lower surface around the mounting hole 96 of the base 81 and the base-side mounting plate
On the lower surface of 102, an annular rib 87 for fitting a bush 107,
111 are respectively formed.

The adjusting means 106 is arranged closer to the base end of the arm than the two connecting means 105, and a spring 112 as an elastic body is arranged below the through hole 88 formed in the base 81. An adjusting screw 114 as a body is screwed to the base-side mounting plate 102 through a spring 112 and a through hole 88. Then, the elasticity of the spring 112 urges the proximal mounting plate 102 in a direction approaching the base 81 via the adjusting screw 114.

As shown in FIG. 10, a motor M1 is mounted on the lower surface of the mounting plate 103 on the distal end of the arm 81, and a turntable 83 is mounted on a spindle 84 projecting from the upper surface of the mounting plate 103 on the distal end. .

The turntable 83 has a boss 121 fixed to the spindle 84.
A table section 122 on which the D is placed is formed.
At the center of the upper surface of 122, a cap portion 123 into which the center hole h of the CD is detachably fitted is formed. The cap portion 123 accommodates three claw members 124 and a detachable mechanism 125 for operating the claw members 124 and is covered with a cover 126.

The claw body 124 is disposed so as to be able to advance and retreat in the radial direction from three openings 127 formed at three places around the cap portion 123. An introduction surface 128 formed of an inclined surface that allows mounting on the CD is formed, and a holding surface 129 formed of an inclined surface that engages with the edge of the center hole h of the CD and presses the turntable 83 below the outer surface. A cam surface 130 is formed on the inner surface facing the inside of the cap portion 123.

The attachment / detachment mechanism 125 has an elevating plate 131 which fits around the boss portion 121 and is movable only in the vertical direction.
A spring 132 for pressing the lifting plate 131 downward is disposed above the lifting plate 131, and a cam plate 13 is provided below the lifting plate 131.
3 is rotatably arranged. Then, the turntable 83 is rotated by a predetermined angle in the normal rotation direction with respect to the cam plate 133, so that the elevating plate 131 is moved to the chuck release position by the cam portion 134 of the cam plate 133 as shown in FIG. As a result, the pawl body 124 can move forward and backward, and the turntable 83 rotates in the reverse direction by a predetermined angle with respect to the cam plate 133, thereby urging the spring 132 as shown in FIG. As a result, the elevating plate 131 is lowered to the chuck position, and the pressing portion 135 of the elevating plate 131 presses the cam surface 130 of the claw body 124 so that the claw body 124 is advanced.

A detachable lever 13 is provided on the lower surface of the turntable 83.
6 is rotatably arranged, and a bush 137 is attached to the lower end of the attachment / detachment lever 136 to cover the lower surface of the attachment / detachment lever 136. The detachable lever 136 is integrally connected to the cam plate 133 by a pin 138 penetrating a guide groove 83a formed in the turntable 83, and the pin 138 is connected to the guide groove 83a.
It is rotatable within a range in which it can move inside. The detachable lever 136 has an engaging portion 139 projecting from the periphery of the turntable 83.

When the turntable 83 rotates forward, the engaging portion 139 of the detachable lever 136 engages with a stopper 145 of the head 85, which will be described later, so that the cam plate 133 integral with the detachable lever 136 stops and turns. Only the table 83 rotates,
As shown in FIG. 10 (c), the lifting plate 131 from which the lifting of the cam plate 133 by the cam portion 134 is released is lowered to the chuck position by the urging of the spring 132, and each of the claws 124 is moved by the lifting plate 131.
Moves out of the cap portion 123, and the holding surface 129 of the claw body 124 engages with the edge of the center hole h of the CD to chuck. Also,
When the turntable 83 rotates in the reverse direction, the engaging portion of the detachable lever 136
139 engages with the stopper 145 of the head 85,
The cam plate 133 integral with the attachment / detachment lever 136 stops, and only the turntable 83 rotates, and as shown in FIG. 10B, the elevating plate 131 is raised to the chuck release position by the cam portion 134 of the cam plate 133. Then, the claw body 124 can move forward and backward, and the chuck of the CD is released.

The head 85 is mounted on the laser pickup 14
8 and 9, the moving body 142 includes the arm portions 101a and 101a of the arm 82, as shown in FIGS.
Along with being mounted movably along 101b,
It is screwed to a screw shaft 143 arranged inside one arm portion 101a. A gear 144 is attached to the end of the screw shaft 143, and the moving body 142 is moved by driving the gear 144 to rotate forward and reverse with a feed motor (not shown). The laser pickup 141 irradiates the laser beam upward to
The reflected light reflected by D is received and read.

As shown in FIG. 10, a detachable lever is provided at the innermost position closest to the turntable 83, as shown in FIG.
A stopper 145 that engages with the engagement portion 139 of the 136 is provided.

As shown in FIGS. 7 and 8, a screw shaft 151 as a support shaft is rotatably erected in the case 51, and the cylindrical portion 91 of the reproducing unit 56 is mounted on the outer periphery of the screw shaft 151.
Is fitted and the cylindrical part is inserted into the male screw 152 of the screw shaft 151.
91 female screws are screwed. Gear 15 at the upper end of screw shaft 151
3, a gear 155 of a gear shaft 154 rotatably mounted on the case 51 is meshed with the gear 153, and a gear 156 of the gear shaft 154 is provided with a motor M2 for lifting and lowering mounted on the case 51. The worm gear 158 is screwed. Therefore, the forward / reverse drive of the motor M2 for vertical movement causes the gear shaft 154 to rotate forward / backward, and the reproducing unit 56 to be moved in the vertical direction.

Next, the selection unit 57 will be described with reference to FIGS.
As shown in FIG. 11, a slide plate 161 is attached to a bracket (not shown) provided upright in the case 51 so as to be vertically movable. The slide plate 161 has two inclined grooves 162 having the same inclination as the inclined edge 23 of the magazine 1 at one end, a horizontal groove (not shown) formed at the other end, and a drive unit 59 from the lower end at the other end. An engagement piece 163 is formed to project in the direction of.

A holder selector 164 is arranged on the inner side of the slide plate 161.
A pair of stoppers 165 are attached to one end through the respective inclined grooves 162, and are slidably supported in the inclined direction along the inclined grooves 162. The other end of the holder selector 164 has a vertical groove
166 are formed, and a holding frame 167 having a substantially U-shaped cross section is formed to fit on both sides of the selection lever 36 of the magazine 1.

A rack gear 168 is disposed on the other end side of the slide plate 161. The rack gear 168 is provided with a stopper 169 through a vertical groove 166 of the holder selector 164 and a horizontal groove of the slide plate 161.
164 is slidably supported in the horizontal direction along the horizontal groove simultaneously with the sliding in the oblique direction.

The bracket, slide plate 161 and holder selector 164 are formed in an arc shape according to the shape of the circumferential surface of the magazine 1.

Next, as shown in FIGS. 8 and 12, the opening / closing unit 58 has an arc-shaped slide body 171 corresponding to the circumferential surface of the magazine 1 on the opening 13 side.
The slide member 171 is provided on the case 51 with stoppers which fit into four groove portions 172 formed near both ends and near the center.
173, a closing movement position corresponding to the closed position of the magazine 1 (a position rotated clockwise in the circumferential direction) and an opening movement position corresponding to the open position of the magazine 1 (a position rotated clockwise in the circumferential direction). Are mounted so as to be freely movable in the circumferential direction between them.

The slide body 171 has a gear portion on one end outer surface.
174, a concave portion 175 for opening movement positioning and a pushing portion 176 are formed, and a closing engaging portion 177 that can be engaged with the closing protrusion 26 of the magazine 1 is provided upright on one end upper surface. As shown in FIG. 5, the pushing portion 176 contacts the contact portion 76b at the closing movement position of the slide body 171 to rotate the lock lever 76 to the unlock position.

At the other end of the slide body 171, a support shaft 178 is provided upright, and a screw shaft 179 is provided so as to be rotatable.
A separator 181 having a mounting portion 180 to be screwed into the separator 181 is mounted. This separator 181 includes:
An opening engaging portion 182 is formed to be engageable with the opening protrusion 27 of the inner body 12 of the magazine 1. A gear 183 is fixed to the screw shaft 179, and a gear 184 rotatably provided on a support shaft 178 is meshed with the gear 183, and a gear 185 integrated with the gear 184 is mounted on a slide body 171 for lifting. The worm gear 187 of the motor M3 is meshed via the gear 188. Therefore, the screw shaft 179 rotates forward and backward by the forward and reverse rotation drive of the motor M3 for lifting and lowering, and the separator
1 is moved up and down.

On the outer surface near the center of the slide body 171, a closing recess 189 and an opening recess 190 are formed, and a closing detecting piece 191 and an opening detecting piece 192 are formed.

As shown in FIG. 12, a leaf spring 193 is attached to the case 51 so as to face the outer surface of the slide body 171. The leaf spring 193 contacts the outer surface of the slide body 171 and engages with the closing recess 189 at the closing movement position of the slide body 171, and engages with the opening recess 190 at the opening movement position of the slide body 171. It is positioned and held at the closing movement position and the opening movement position.

The case 51 is provided with a switch SW1 as a detecting means facing the outer surface of the slide body 171. This switch SW1 is connected to the detection axis
Detection lever 1 that can be engaged with 191 or opening detection piece 192
96 is attached, the detection lever 196 is pushed by the closing detection piece 191 at the closing movement position of the slide body 171 and swings, and the detection lever 196 is pushed by the opening detection piece 192 at the opening movement position and swings. Then, the closing movement position and the opening movement position of the slide body 171 are detected by the swing of the detection lever 196.

Next, as shown in FIGS. 7 and 8 and FIGS. 11 and 12, the drive unit 59 has a shaft 201 rotatably erected in a case 51. A gear 202 of a gear shaft 203 rotatably mounted on the case 51 meshes with the gear 202, and loading as a driving means mounted on the gear 51 of the gear shaft 203 on the case 51. The worm gear 207 of the motor M4 engages. Accordingly, the shaft body 201 is driven by the reverse rotation drive and the forward rotation drive of the loading motor M4.
Are the reverse direction (the direction of the arrow in FIG. 8; the direction of movement of the slide body 171 to the open position, the direction of the movement of the playback unit 56 to the playback position) and the forward direction (the direction opposite to the direction of the arrow in FIG. (The direction in which the slide body 171 moves to the closing position, and the direction in which the playback unit 56 moves to the standby position).

Below the gear 202 of the shaft 201, a gear 208 capable of meshing with the gear 174 of the slide 171 is formed so as to protrude only in a predetermined angle range corresponding to the meshing range. A disk portion 209 is formed in an angle range other than 208 so as to be able to engage with the concave portion 175 for positioning the open movement.

Above the gear 202 of the shaft body 201, a gear portion 210 capable of meshing with the gear portion 95 of the reproducing unit 56 protrudes over the entire area in the axial direction near the position of the upstream portion of the gear portion 208 in the reverse rotation direction. Is formed.

Above the gear 202 of the shaft 201, a cylindrical tubular body 211 is fitted to the gear 210 so as to be slidable in the vertical direction. A groove 212 is formed on the lower peripheral edge of the cylindrical body 211 so that the base 81 of the reproducing unit 56 and the engaging piece 163 of the slide plate 161 can be engaged with each other. Integrated rack gear 16
A gear portion 213 that can mesh with the gear 8 is formed. Therefore, the reproduction unit 56 and the slide plate 161 move up and down integrally via the cylinder 211.

A gear 214 which is rotatably provided on the case 51 meshes with a gear 202 of the shaft body 201, and the gear 214 integral with the gear 214 is adjacent to the screw shaft 151 of the reproducing unit 56. A rotatable gear 216 meshes with a cam shaft 217 formed integrally with the gear 216. The cam shaft 217 has a peripheral surface which can be engaged with the concave portion 93 for the standby position or the concave portion 94 for the reproduction position of the base 81, and the peripheral surface of the cam shaft 217 faces the rib portion 92 when the reproduction unit 56 is rotated. A notch 218 that allows rotation is formed.

Next, the operation of the present embodiment will be described.

First, the magazine 1 will be described. In order to mount a CD on the magazine 1, the CD is inserted and mounted on the upper surface of each holder 30 through the opening 13 with its recording surface as the lower surface. It is also possible to release the lock of the magazine 1 and open the outer body 11 and the inner body 12 to mount a CD.

Since the outer body 11 and the inner body 12 are locked in a state where the outer body 11 and the inner body 12 are closed by the lock body 45, the outer body 11 and the inner body 12 are used when the magazine 1 is handled.
Can be reliably mounted and removed from the changer device 2 in the closed state.

Next, the loading and unloading of the magazine 1 to and from the changer device 2 will be described.

For loading the magazine 1, the magazine 1 loaded with the CD is inserted into the magazine loading section 52 through the insertion opening 53 of the changer device 2 with the opening 13 side facing the insertion direction.

Then, as shown in FIG. 4, when the magazine 1 is inserted between the two guide members 61 through the insertion port 53,
In the magazine 1, the magazine rack gear 42 meshes with the pinion gear 68 at the position indicated by the two-dot chain line, and the pinion gear 68 moves in the magazine insertion direction against the bias of the spring 71 while rotating by meshing with the rack gears 42 and 66. When the magazine 1 is inserted to a predetermined position of the magazine loading section 52, the magazine 1 is locked by a magazine lock mechanism (not shown).

At this time, the moving distance L1 of the magazine 1 after the magazine rack gear 42 of the magazine 1 meshes with the pinion gear 68 is the pinion gear 68 that moves while rotating.
Is approximately twice as long as the moving distance L2.

When the magazine 1 is taken out, the lock by the magazine lock mechanism is released by pushing the eject lever 72. As shown in FIG. 5, the eject lever 72 can be moved only when the pusher 176 is in contact with the contact portion 76b at the closing position of the slide body 171 and the lock lever 76 is rotated to the unlock position. Operation can be performed, and ejection in the open state of the magazine 1 can be prevented.

When the lock of the magazine 1 is released, the pinion gear 68 is moved by the urging of the spring 71 so that each rack gear 4
The magazine 1 moves in the ejecting direction while rotating by meshing with the gears 2 and 66, and the magazine 1 moves in the ejecting direction through meshing between the pinion gear 68 and the magazine-side rack gear 42,
The rear part of the magazine 1 projects from the insertion port 53.

At this time, the moving distance L1 of the magazine 1 is approximately twice as long as the moving distance L2 of the pinion gear 68 which moves while rotating.

Therefore, the ejection distance of the magazine 1 can be reduced while the ejection distance of the magazine 1 is secured. In addition, the magazine 1 can be smoothly inserted when the magazine 1 is inserted, and the magazine 1 can be smoothly ejected when the magazine 1 is ejected.

Further, while the magazine 1 is being inserted into the magazine loading section 52, the lock release section 48 of the lock body 45 comes into contact with the guide member 61, and the lock body 45 rotates to form the outer body 11 and the inner body 12 with each other. Is released and can be opened. On the other hand, during the ejection of the magazine 1, the lock release portion 48 of the lock body 45 comes off the guide member 61, and the lock body 45 rotates to lock the outer body 11 and the inner body 12.

When the magazine 1 is ejected, as shown in FIG. 6, even if the magazine 1 is ejected in a state where the inner body 12 is not completely closed,
The lower portion of 12 abuts on the guide plate 51c, and the inclination of the guide plate 51c guides the inner body 12 upward, so that the outer body 11 can be reliably closed.

Next, the changer device 2 will be described.

In the standby state of the changer device 2, as shown in FIG. 7, the arm 82 of the reproducing unit 56 is located at the standby position on the back side of the magazine loading section 52,
The peripheral surface of the cam shaft 217 is engaged with 93 and is locked at its standby position, and its height position is set to the position of the first CD by the initialization processing or to the position of the C which was reproduced last time.
It is located at position D. The head 85 on the arm 82 is located at the outermost periphery (base end side). Claw body 124 of turntable 83
As shown in FIG. 10B, the cam portion 134 of the cam plate 133 is
As a result, the elevating plate 131 rises to the chuck release position, and can move forward and backward.

The slide plate 161 of the selection unit 57 is located at a height integral with the reproduction unit 56. Slide plate
The holder selector 164 attached to the 161 is positioned along the inclined groove 162 because the rack gear 168 is positioned at the most end (the inclined groove 162 side) of the horizontal groove of the slide plate 161 in contact with the peripheral surface of the cylindrical body 211. At the highest elevation.

The slide body 171 is, as shown in FIG.
The gear 174 is located at the closing position rotated clockwise in the circumferential direction, a part of the gear 174 meshes with the gear 208 of the shaft 201, and the leaf spring 193 engages with the recess 189 for closing. It is held in the closed movement position. Separator selector 1 on slide body 171
81 is located at the position of the first CD or the position of the CD where the previous reproduction was performed.

When the magazine 1 is inserted into the changer device 2, the selection lever 36 of the magazine 1 is moved to the holder selector.
164 and the inner frame 12 of the magazine 1
The opening projection 27 of the slide body 171 is engaged with the opening engagement section 182 of the slide body 171, and the closing projection 26 is
177 is engaged.

At the time of reproducing a CD, the operating section for controlling the changer device 2 is operated to operate a certain holder.
When the CD mounted on 30 is selected, the playback unit 56
If the arm 82 is not at the position of the selected CD, the motor M2 for elevation is driven forward or reverse, and the arm 82 of the reproduction unit 56 is elevated and slightly lower than the holder 30 on which the selected CD is mounted. Move to height position. This arm 82
With the movement of the slide plate 161, the slide plate 161 moves up and down integrally via the cylindrical body 211, and the holding frame 167 of the holder selector 164 that moves integrally with the slide plate 161 moves to the holder 30 on which the selected CD is mounted. It moves to a height position that engages with the selection lever 36.

Thereafter, the loading motor M4 is driven to rotate in the reverse direction, and the shaft body 201 starts to rotate in the reverse direction.

In the initial stage of the reverse rotation of the shaft 201, the slide 171 rotates counterclockwise in the circumferential direction toward the open movement position through the engagement of the gear 202 of the shaft 201 and the gear portion 174 of the slide 171. Then, the inner body 12 of the magazine 1 with which the opening engagement portion 182 of the slide body 171 engages is lowered while rotating counterclockwise integrally, and at the same time, the holding frame 167 of the holder selector 164 is fitted. Holder 30 below holder 30 whose rotation is restricted
And the separator 31 descends while rotating counterclockwise with the inner body 12.

Then, when the shaft body 201 rotates by a predetermined angle,
The slide body 171 reaches the open movement position. At this time, the gear 202 of the shaft 201 is disengaged from the gear 174 of the slide 171, and the disc 209 engages with the recess 175 of the slide 171,
The slide 171 is locked at the open position. Further, the opening detecting piece 192 of the slide 171 comes into contact with the detection lever 196 of the switch SW1 to swing, and detects that the switch SW1 is turned on and the slide 171 has reached the open movement position. In addition, the leaf spring 193 engages with the opening concave portion 190, and holds the slide body 171 at the opening movement position.

Therefore, a gap is provided below the holder 30 on which the selected CD is mounted so that the reproducing unit 56 can enter.

The selection lever 36 of the holder 30 that has been moved down with respect to the position of the selection lever 36 of the holder 30 held by the holder selector 164 moves counterclockwise and downward, and the holder held by the holder selector 164.
The opening lever 41 of the lower separator 31 that has been moved down with respect to the position of the opening lever 41 of the separator 31 on the upper 30 moves counterclockwise and downward. Then, as shown in FIG. 14, the slide body 171 is placed below the opening lever 41 of the separator 31 on the holder 30 held by the holder selector 164.
Of the separator 31 restricts the lowering of the separator 31.

Further, at the beginning of the reverse rotation of the shaft 201, the cam shaft 217 rotates counterclockwise in the figure, and the notch 218 is formed in the standby position recess 93 of the base 81 of the reproduction unit 56 and the reproduction position depression 93. The rib portion 92 faces the concave portion 94.

Subsequently, during the middle period of the reverse rotation of the shaft 201, the gear portion 210 of the shaft 201 meshes with the gear portion 95 of the reproducing unit 56, and the arm 82 of the reproducing unit 56 rotates clockwise in the figure. It moves into the opened gap of the magazine 1. At this time, the notch 218 of the cam shaft 217 faces the rib 92 between the standby position recess 93 and the playback position recess 94 of the base 81 of the playback unit 56, so that the arm 82 is unlocked at the standby position. Thus, the rotation of the arm 82 is allowed.

Then, the turntable at the tip of the arm 82
When 83 reaches the playback position corresponding to the center position of the magazine 1, that is, the center position of the CD, the gear portion 210 of the shaft 201
Is disengaged from the gear portion 95 of the reproducing unit 56 and the camshaft 21
7 engages with the concave portion 94 for the reproduction position of the base 81 to lock the arm 82 at the reproduction position.

Subsequently, in the latter half of the reverse rotation of the shaft body 201, the gear portion 213 of the cylindrical body 211 fitted to the shaft body 201 meshes with the rack gear 168 of the holder selector 164, and the holder selector 164
Moves in the counterclockwise direction and descends along the inclined groove 162 of the slide plate 161, and the holding frame 16 of the holder selector 164 is moved.
7, the holder 30 holding the selection lever 36 is lowered while rotating counterclockwise. At this time, since the notch 32 is formed in the holder 30, the holder 30 moves without contacting the arm 82 of the reproducing unit 56.

Therefore, the CD mounted on the selected holder 30 is also lowered, and the hole h of the CD fits into the cap 123 of the turntable 83 during the lowering and is placed on the table 122. Then, at the position where the holder 30 is further lowered, the reverse rotation drive of the loading motor M4 is stopped. At this time, since the descending holder 30 and the upper separator 31 of the CD are restricted by the separator selector 181, the lower holder 30 for the selected CD is not moved.
And the upper separator 31 is also separated.

Subsequently, the CD is chucked on the turntable 83. In other words, the head 85 is the innermost circumference (turntable
83), the motor M1 is driven to rotate forward, and the turntable 83 rotates forward. This allows the turntable 83
The engaging portion 139 of the detachable lever 136 that rotates integrally with the engaging lever engages with the stopper 145 of the head 85, the cam plate 133 integrated with the detachable lever 136 stops, and only the turntable 83 rotates.
As shown in FIG. 10 (c), the lifting plate 131 from which the lifting of the cam plate 133 by the cam portion 134 is released is lowered to the chuck position by the urging of the spring 132, and each of the claws 124 is moved by the lifting plate 131.
Moves out of the cap portion 123, and the holding surface 129 of the claw body 124 engages with the edge of the center hole h of the CD to chuck.

When the head 85 is moved to the outer peripheral side (base end side) after the CD is chucked, the CD is rotated integrally with the turntable 83, and the laser pickup of the head 85 is performed while the head 85 moves. At 141, the signal recorded on the CD is read and reproduced.

When the reproduction of the CD is stopped, the normal rotation of the motor M1 is stopped, the head 85 is moved to the innermost circumference (the turntable 83 side), and the motor M1 is driven to rotate in the reverse direction for a predetermined time. 83 reverses. As a result, the engaging portion 139 of the detachable lever 136 which rotates integrally with the turntable 83 engages with the stopper 145 of the head 85, and the cam plate 133 integral with the detachable lever 136 stops to turn the turntable 83.
10B, the elevating plate 131 is raised to the chuck release position by the cam portion 134 of the cam plate 133, and the pawl body 124 can freely move forward and backward to release the CD chuck. . Thereafter, the head 85 is moved to the outermost periphery (the base end side).

Subsequently, the loading motor M4 is driven to rotate forward, and the shaft 201 starts to rotate forward.

At the initial stage of the forward rotation of the shaft 201, the holder selector 164 is moved clockwise by the engagement of the gear portion 213 of the cylindrical body 211 fitted to the shaft 201 and the rack gear 168 of the holder selector 164. And rises along the inclined groove 162 of the slide plate 161 to move the holding frame 16 of the holder selector 164.
At 7, the holder 30 holding the selection lever 36 rises while rotating clockwise.

Therefore, the reproduced CD is pushed up while the holder 30 is being lifted up, the CD is removed from the turntable 83, and the CD is mounted on the holder 30 and rises together.

When the gear portion 213 of the cylinder 211 comes off the rack gear 168 of the holder selector 164, the peripheral surface of the cylinder 211 contacts the rack gear 168, and the holder selector 164 is held at the raised position.

Subsequently, during the forward rotation of the shaft 201, the gear portion 210 of the shaft 201 meshes with the gear portion 95 of the reproducing unit 56, and the arm 82 of the reproducing unit 56 moves counterclockwise in the drawing. The magazine rotates and withdraws from the opened gap of the magazine 1. At this time, the notch 218 of the cam shaft 217 is
Since the rib 82 faces the rib 92 between the standby position concave portion 93 and the reproduction position concave portion 94 of the base 81, the lock of the arm 82 at the reproduction position is released, and the rotation of the arm 82 is allowed.

When the arm 82 reaches the initial standby position, the gear portion 210 of the shaft 201 is moved to the gear portion of the reproducing unit 56.
95, and the peripheral surface of the cam shaft 217 engages with the standby position recess 93 of the base 81 to lock the arm 82 at the standby position.

Subsequently, in the latter half of the forward rotation of the shaft body 201, the disk portion 209 of the shaft body 201 is disengaged from the concave portion 175 of the slide body 171 and the gear portion 208 of the shaft body 201 is moved to the slide body 171.
The sliding body 171 moves clockwise in the circumferential direction, and the closing engaging portion 177 of the sliding body 171 pushes the closing projection 26 of the inner body 12 of the magazine 1 to thereby engage the inner body.
The CD 12 and the CD at the lowered position, the holder 30 and the separator 31 ascend upward while rotating clockwise integrally. Therefore, the gap opened in the magazine 1 is closed.

When the slide body 171 reaches the initial closing movement position, the normal rotation drive of the loading motor M4 is stopped, and the apparatus returns to the initial standby state. At this time, the closing detection piece 191 of the slide body 171 comes into contact with the detection lever 196 of the switch SW1 to swing, and the switch SW1 is turned on to detect that the slide body 171 has reached the closing movement position. In addition, the leaf spring 193 engages with the closing recess 189 to hold the slide body 171 at the open movement position.

When the CD to be reproduced is changed, the reproducing unit 56 is once returned to the standby position from the reproduction state, and once returned to the standby state in which the magazine 1 is closed. Play unit
The reproduction is performed from the standby state to the reproduction state as described above by setting the 56 and the holder selector 164 to the height position of the holder 30 on which the next selected CD is mounted.

In the standby state, the magazine 1 can be ejected from the changer device 2 by pushing the eject lever 72.

As described above, a plurality of CDs arranged one on top of another
Move any of the CDs in the disk stacking direction,
A gap is opened in front of the CD to be reproduced, and the reproducing unit 56 is caused to enter the gap.
Can be rotated for reproduction, and the changer device 2 can be downsized.

In addition, the magazine 1 has a disk circle in which the outer body 11 and the inner body 12 are opposite to each other on the side where the outer body 11 and the inner body 12 overlap by a slide member 28 or a screw 29 as a connection holding means. The outer body 11 and the inner body 12 have a simple structure because they rotate in the circumferential direction and, in conjunction with the rotation in the circumferential direction of the disk, are held in a connected state in which they are opened and closed by coming and going in the laminating direction of the disks. It can be opened and closed reliably, and moreover, multiple CDs can be installed within a certain vertical dimension.

Therefore, when adopted as a six-unit CD changer for an automobile, for example, the changer device 2 can be incorporated in the central portion of the instrument panel.

Further, the magazine 1 is locked in a state where the outer body 11 and the inner body 12 are closed by the lock body 45, so that the outer body 11 and the inner body 12 may be opened when the magazine 1 is handled. No, changer device 2
Mounting and unloading can be performed reliably in the closed state.

A pinion gear 68 meshed with the fixed rack gear 66 and urged in the ejecting direction by a spring 71 is arranged on the inner surface of the magazine loading section 52.
When the magazine 1 is inserted into the magazine 52, the magazine-side rack gear 42 of the magazine 1 is meshed with the pinion gear 68 and inserted. Only needs to be done. Therefore, after securing the ejection distance of the magazine 1,
The size of the eject unit 55 in the magazine insertion / removal direction can be reduced. In addition, the magazine 1 can be smoothly inserted when the magazine 1 is inserted, and the magazine 1 can be smoothly ejected when the magazine 1 is ejected.

Further, at the time of ejecting the magazine 1, even if the magazine 1 is to be ejected in a state where the inner body 12 is not completely closed, the lower part of the inner body 12 abuts on the guide plate 51c, and the guide plate 51c is ejected. The inclination allows the inner body 12 to be guided upward and to be reliably closed by the outer body 11.

When the CD is loaded or unloaded by the turntable 83, the head 85 is brought close to the turntable 83 and the turntable 83 is rotated forward, so that the engaging portion 139 of the attaching / detaching lever 136 of the turntable 83 is turned on. The stopper body 145 engages with the stopper 145 of the turntable 83 so that the claw body 124 can advance from the cap portion 122 of the turntable 83 to hold the CD, and the head 85 approaches the turntable 83 so that the turntable 83
Is reversed, the engaging portion 139 of the detachable lever 136 of the turntable 83 is engaged with the stopper 145 of the head 85, and the claw body 124 can be retracted from the cap portion 122 of the turntable 83. Therefore, no special external force is required,
A CD can be loaded and unloaded in a narrow space in the changer device 2.

In the reproducing unit 56, an arm 82 is supported via a bush 107 of a connecting means 105 and a spring 112 of an adjusting means 106 with respect to a base 81 attached to the case 51 via a screw shaft 151. The arm 82 has a cantilever support structure in which only the base end is supported, but the effect of vibration from the outside, that is, the case 51 side, on the arm 82 can be reduced, and the occurrence of reproduction failure can be reduced. Can be prevented.

The recording / reproducing disc includes a read-only disk,
Includes both recording and playback. Therefore, the recording / reproducing disk is not limited to a CD, but includes a video disk, a magneto-optical disk capable of recording / reproducing, a magnetic disk, and the like, and can be applied to a recording / reproducing apparatus for recording / reproducing the recording / reproducing disk.

In a recording / reproducing apparatus for recording / reproducing a magnetic disk, a magnetic recording / reproducing head for performing magnetic recording / reproducing on a magnetic disk is used for the reproducing unit 56.

Further, in the magazine 1, the inner body 12 is fitted inside the outer body 11 in the above embodiment, but the combination of the outer body 11 and the inner body 12 may be reversed. Further, when the outer body 11 is rotated for opening and closing, the outer body 11 may be provided with a closing projection 26 and an opening projection 27.

[0117]

According to the recording / reproducing disk magazine of the present invention, the outer body and the inner body rotate in mutually opposing disk circumferential directions, and the disk rotates with the disk circumferential direction. The outer and inner bodies can be reliably opened and closed with a simple structure to maintain the connection state that opens and closes in the stacking direction, and furthermore, multiple recording / reproducing disks within a certain vertical dimension can be provided. .
In addition, the use of the undivided magazine simplifies the structure of the recording / reproducing apparatus. Further, when the magazine is not inserted into the recording / reproducing apparatus, the outer body and the inner body are locked in a closed state by the lock body, so that the outer body and the inner body do not open when the magazine is handled, Mounting and unloading to and from the recording / reproducing apparatus can be reliably performed in the closed state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a magazine for a recording / reproducing disc according to the present invention.

FIG. 2 is a perspective view of the magazine of the embodiment in a closed state.

FIG. 3 is a perspective view of the magazine of the embodiment in an open state.

FIGS. 4A and 4B show the structure of an eject unit of the changer device to which the magazine of the embodiment is mounted, wherein FIG. 4A is a partially cutaway plan view and FIG. .

FIG. 5 is a plan view of an ejection mechanism of the changer device of the embodiment.

FIG. 6 is a side view of guide means of the changer device of the embodiment.

FIG. 7 is a partially cutaway plan view of the changer device of the embodiment in a magazine loaded state.

FIG. 8 is an exploded perspective view of a part of the changer device of the embodiment.

9A and 9B show the structure of a reproducing unit of the changer device of the embodiment, wherein FIG. 9A is a side view with a part cut away, FIG. 9B is a bottom view with a part cut off, and FIG. It is the side view which notched.

10A and 10B show the structure of a regeneration unit of the changer device of the embodiment, wherein FIG. 10A is a partial plan view, FIG. It is the side view which cut out some states.

FIG. 11 is a partially cutaway plan view of the changer device of the embodiment.

FIG. 12 is a plan view of the changer device of the embodiment, with a part cut away.

FIG. 13 is a sectional view taken along line AA of FIG. 7 of the embodiment.

FIG. 14 is a view on arrow B in FIG. 7 of the embodiment.

[Explanation of symbols]

 11 Outer body 12 Inner body 28 Slide member as connecting and holding means 29 Screw as connecting and holding means 30 Holder 45 Lock body CD Recording / reproducing disc

Claims (1)

(57) [Claims] 1. An outer body, an inner body fitted inside the outer body, and a side surface where the outer body and the inner body overlap each other. A connecting and holding means for holding a connection state in which the disc can be opened and closed while being rotatable and openable and closable with each other in the disc laminating direction with the rotation in the disc circumferential direction; A plurality of holders which are provided so as to be movable in the disk stacking direction with the rotation and respectively hold a plurality of recording / reproducing disks, and the outer body and the inner body are locked in a closed state and unlocked. A recording / reproducing disc magazine, comprising: a lock body having an unlocking portion protruding outward.