JPS60236155A - Recording disc playback device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

Industrial Application Field This invention is a disk-shaped recording medium (hereinafter referred to as a disk).
Remove the disc from the disc case containing the
The present invention relates to a recording disk reproducing device that automatically reproduces data. Conventional configurations and their problems Traditionally, in playback devices for high-density recording discs, such as video discs, as in Japanese Patent Application Laid-open No. 111158/1983, a player manually plays a disc in a cylindrical disk case. There are many playback devices that use a so-called semi-automatic loading method, in which the player inserts the player deep into the case and manually removes the empty case. However, with this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth significantly, and the loading mechanism does not function perfectly to withstand harsh use by the user. It is difficult to configure! Therefore, we developed a playback device that is equipped with a means for removably fixing the 5-disc case to the main body of the playback device, and a means for transporting the disk from the disk case into the playback device. According to this proposal, when the user inserts the case slightly, the recording medium is automatically removed from the case and playback is possible. Since the lid is transported by a transporting means, there is a problem that the lid interferes with the reproducing head during reproduction, which has prevented the realization of the reproducing apparatus. It is an object of the present invention to provide a recording disc playback device which does not have the problem of interference and allows the user to automatically take out the recording medium from the case and play it back just by slightly inserting the case into the main body of the playback device. Composition of the Invention The recording disk reproducing apparatus of the present invention includes a case body which has a storage space capable of storing a disk-shaped recording medium therein and has an opening at one end for taking out the recording medium, and a case body which has an opening for taking out the recording medium at one end; A device using a disc case comprising a lid that removably engages with the opening of the case, the device comprising: a playback device main body having a playback means; and a lid release means for releasing the connection between the opening of the case and the cover. a lid-hanging stop means for hanging and stopping the lid; a transport means for reciprocating the lid-hanging means together with the recording medium within the main body of the playback apparatus; and a part of the transport route by the transport means. and a lid support means for supporting the lid at the top. According to this configuration, when the user only slightly inserts the case into the reversible device main body, the lid is released from the case by the lid release means, and the lid is removed from the case. The stop means stops the lid from being hung, and the transport means transports the lid together with the disc into the main body of the playback apparatus, and the disc is placed at a position where it can be played.At this time, the lid is provided in a part of the transport path. The disk is supported apart from the disk by the lid supporting means, thereby avoiding interference with playback, gutter, etc., and making it possible to re-enter the disk.Description of Embodiments Embodiments of the present invention are shown in FIGS. First, the outline will be explained. As shown in FIG. The head is mounted on the chassis 40.A movable base 91 is movable back and forth (arrow x 1) on the chassis 40.
, ×2 directions), and claw-shaped release members 107 and 108 serving as lid release means are provided at both ends of the movable base 91. The release members 107 and 108 are connected to case 2 (second
(Fig.) and the lid 3 are released. Movable base 9
1 further includes a pair of neck hanging members 99 serving as hanging means,
100 is mounted so as to be horizontally rotatable. The movable base 91 is attached with two side clamp arms 95 and a lower clamp arm 96 that clamp the disk 6, and together with these constitute means for transporting the lid 3 and the disk 6. At the rear end of the chassis 40 is a mold holding member 4 on which the disk 6 is placed.
1.42 is provided, thereby forming a lid support means for supporting the lid 3 in a part of the transfer path by the movable base 91. Next, the whole will be explained in detail. FIGS. 1 to 4 respectively show the configurations of a disc and a disc case that can be used in the recording disc reproducing apparatus according to this embodiment. In Figure 1, disk 6
has a center hole 34 and a bank-like outer group guard 33
An inner group guard 32 is provided. In FIG. 2, a rectangular disk case 1 has a disk case main body 2 (hereinafter referred to as the case) and a lid that is removably connected to an opening 7 provided on the front side of the case 2 in the insertion direction X1 into the device. 3. The case 2 and the lid 3 are made of styrene resin, for example. The interior of the case 2 is a flat disk storage space 5 over its entire width and length, and a disk 6 is stored within this space 5. This space 5 has the opening 7 on the insertion direction x1 side, and is closed on the remaining three sides. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and ridges 9, 10, . I
It consists of I. At the center near the opening 7 is a lid 3 which will be described later.
A retaining hole 13 is formed in which the convex portion of the opening 7 engages.
Engagement holes 16 are formed on the left and right sides of the lid 3, into which the protrusions of the lid 3 engage. The X1 portion of the lid 3 is provided with a flange portion 18 that cools the opening 7 of the case 2 when the X3 is engaged and fixed to the case 2, and is provided with an expansion member (described later) symmetrically to the center line (1). A notch 19 is provided into which the user can enter. A leaf spring 25 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned engagement hole 16 and fixes the lid 3 to the case 2 . The tip of the protrusion 24 is provided with an inclined portion 26 that engages with the release member of the lid 3. FIG. 3 shows a state in which the disc 6 and the lid 3 are assembled into the case 2, and the disc 6 is locked in the depth and width directions. Furthermore, since the jaw 3 engages with the case 2 to close the opening 7, the disc 6 is housed without falling out of the case 2. FIG. 4 is a detailed view of X3, in which the shape of the side facing the disk 6 is formed, for example, by a circular arc in which the gap at both ends is larger than the gap a at the center. This is to ensure stable operation even if the relative positions of the lid 3 and the disk 6 are slightly shifted in the Z direction during a playback operation to be described later. FIGS. 5 and 6 show the recording disk reproducing apparatus of this embodiment. FIG. 5 is an external view of the recording disk reproducing apparatus, and as shown in the figure, a case insertion opening 51 is provided in the outer case 50a of the reproducing apparatus main body 50. Figures 6(A) to 6(C) show the basic configuration of a recording disk reproducing apparatus. 6th
In the figure (A), 130 is a turntable on which the disc 6 is placed and brought into playback mode. Reference numeral 131 has a center boss, which centers the disc 6 that is H'M-ed on the turntable 1301. Reference numeral 132 denotes a clamp, which presses the disc 6 placed on the turntable 130 into contact with the turntable 130. Reference numeral 4o denotes a chassis to which a guy 1'52, 53 for guiding the case 2 into the playback device main body 50 is fixed. Guys F52a and 53a are the guide grooves. Reference numeral 60 denotes a case expansion mechanism, which is fixed to the chassis 40, -h near the case insertion opening 51. Reference numeral 66 denotes an expansion member that is supported by the fixed base 8o so as to be movable up and down, and expands the case 2 by means of the support part +J'61 fixed to the fixed base 80. Fixed base 80 is Soyashi 40
is fixed. The retaining member 62 is attached to a fixed base 80 with a shaft 74. It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13. 90 is a disk holding mechanism. 95 is an upper clamp arm, which is formed integrally with the movable base 91. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down.
The disk G is held between these two. Reference numerals 99 and 100 denote latch members, which are supported by bins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91, and which are attached to the lid 3.
The X3 is engaged with the notch 19 of the X3. Reference numeral 94 denotes a leaf spring, which is mounted on the movable base 91 at a position where it comes into contact with the lid 3. 107° 108 is the movable base 91
It is a claw-shaped release member integrally formed with the lid 3 and functions to engage with the slope 26 of the projection 24 of the lid 3 to release the engagement between the lid 3 and the case 2. The movable base 91 of the disk holding mechanism 90 is connected to the rail 45.
46. It is supported so that it can move freely in the front and rear directions (X, X2 directions) from 4 H, 1 m. The rail 45 has grooves on both sides as shown in FIG. 6(B), and a roller 92 rotatably provided on a movable base 91 fits into the groove of the rail 45. Therefore, the disk holding mechanism 90 does not come off the rails 45, 46, 47. The movable base 91 is fixed to the belt 111 by a connecting piece. Heald 111 is hung between gears 112 and 113, and is driven by a motor 114 equipped with a speed reducer to move disk holding mechanism 90. 120 is an arm housing, a rail 126, a shaft 12
2, move the top of the turntable 130 in the left and right direction (Y,...
It is supported movably in both directions (Y2 direction). Similarly to the disk holding mechanism 90, the arm housing 120 also supports the motor 1.
24 and Held (not shown), the turntable 13
A disk 6'' placed on top of the disk 6'' is transported in parallel, and the signal from the disk 6 is picked up. In FIG. 6(C), reference numeral 80 denotes a support that supports the disk 6, and a shaft 181. It is supported by bearings 0182 so as to be able to move vertically (M, M2 directions). The nabot 180 is provided in two parts, left and right, as shown in the figure, in order to hold the group guard 33 of the disk 6 in the Y, Y2 directions (see FIG. 6(A)).
is configured to be able to hold a larger area than the diameter of the group guard 33 of the disk 6. In addition, the support 180 is below the turntable 130,
It is configured so that it can protrude above the turntable 130 and support the disc 6 held by the disc holding mechanism 90. Reference numeral 134 denotes a disk elevating mechanism, which is constructed as follows. The lift arm 142 is supported by a shaft 141 and a bearing 138 so as to be vertically movable. By rotating the lift arm 142, the lift ring 136 (see FIG. 24) supported by the lift arm 142 and located at the lower part of the elevating ring 135 is raised and lowered, and the mounting ring 133 fixed to the elevating ring 135 raises and lowers the lift ring 136 (see FIG. 24). The disk 6 is moved up and down between a state where it is supported above the turntable 130 and a state where it is placed on the turntable 1301. 160 is Camunino I, and the above-mentioned support 180
, disk promotion mechanism 134. It drives the case expansion mechanism 60. The cam 161 is horizontally rotatably supported by a shaft 176, and is configured to rotate by the power of a cam drive motor 165 via a worm 166. 162 is a lever, and shaft 179. It is horizontally rotatably supported by a bearing 163 and urged in the P1 direction by a spring 172. The levers 167.168 each have a shaft 178. It is rotatably supported by bearings 170 and 171. Each lever 162°167
．． 168 is the cam diagram of the cam 161 (Fig. 15)
It is linked to the cam 161 so as to operate according to the following. 1
Reference numeral 90 is a reversing lever for switching the operation of the disc clamping device t190. The reversing lever 190 is horizontally rotatably supported by a shaft 194, biased in the Q direction by a spring 192, and positioned by a block 191. 2 140 is a turntable driving motor. Figure 6 (
In A), 200 to 205 are microswitches. The microswitch 200 is a switch for detecting the operation of the case expansion mechanism 60. The microswitch 201 is a switch for detecting the operation of the disk holding mechanism 90. Microswitches 202 to 205 are switches for detecting the position of the disk holding mechanism 90. The disc holding mechanism 90 will be explained in detail. 7(A) to (C), FIGS. 8(A) and 8(B), and FIGS. 9-1 and 10 are explanatory diagrams of the structure and operation of the disk holding mechanism 90. The movable base 91 is provided with contact portions 91a on the left and right sides that contact the lid 3. Reference numeral 92 indicates four rollers, which are rotatably supported by the movable base 91 and engaged with the rail 45 as shown in FIG. 7(C). A roller 93 is rotatably supported on the opposite side of the movable base 91. Reference numeral 94 denotes a leaf spring, which is attached at a position where it comes into contact with the lid 3. 95 is an upper clamp arm;
It is formed integrally with the movable base 91, and a claw 95a is formed as shown in FIG. 7(B). The lower clamp arm 96 is rotatably supported by a bearing 97 and biased by a spring 98 in the direction of arrow 98a. 99
, 100 are latching members that engage with the notches 19 of the lid 3 to lock the lid 3. The latching members 99 and 100 have pins 105° and 106, respectively.
It is supported so as to be horizontally rotatable relative to the movable base 91. In addition, driven ends 115 and 11.6 are provided at the latching portion (A 99° 100) respectively to be guided by cam grooves 113° 114 provided in the sliding member 1.02. is substantially plate-shaped, and the cam groove 113,
114 is guided by the bins 105 and 109 to the arrow Y
1 or Y2 direction. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure, and a protrusion 102b is provided, and a contact portion 1 is provided on the opposite side.
02a and a spring hook 110a. Protrusion 102b
is configured so that it can come into contact with the contact portion 101b (see FIG. 7(C)) of the rotating member 101 through a square hole 91b drilled in the movable base 91. Also, the spring hook 4 III and the spring hook of the movable base 91 are located between the portion 112.
The sliding member 102 is always biased in the direction of the arrow Y2 by the spring 110 that is bent. Further, the sliding member 102 is provided with a wedge-shaped portion 102C, which is shown in FIG.
), (B), the wedge-shaped portion 102c is configured to abut against the abutting end 96a of the lower clamp arm 96. The rotating member 101 is attached to the movable base 9 by the fulcrum 101a.
1 for horizontal rotation, and is biased by a spring 04 to rotate in the direction of arrow 04a (FIG. 7 (Δ)). In addition, the rotating member +01 has a contact portion ]01b as described above.
In addition, a contact end 101C that can come into contact with the lid 3 is formed. The contact portion 101b has a sloped shape as shown in the figure. Reference numerals 107 and 108 are release members provided at both ends of the movable base 91, which engage with the inclined portion 26 of the projection 24 of N3 to release the lid 3.
This is to release the engagement between the case 2 and the case 2. Reference numeral 109 denotes a contact plate, which is provided at a position where it can come into contact with the microswitches 202-205. 110' is a connecting piece that connects the heald 111 and the 5-disk holding mechanism 90. The operation of the disk holding mechanism 90 will be explained. The disk holding mechanism can take the following three states. The first state is the "lid/disk holding state". This is a state in which the lid 3 is closed and the disc 6 is clamped as shown in FIG. 7(A). In this state, the sliding member 10
2 is located closest to the right in the figure (in the direction of arrow Y2) among the three states. The locking member 99.100 is in the cam groove 1
The driven ends 115 and 116 are guided by 13 and 114, respectively, so that the lid 3 is in a restricted position as shown in the figure. The leaf spring 94 is in contact with the lid 3 as shown in the figure, biasing the lid 3 forward (in the direction of arrow X1). The rotating member 101 is in contact with the lid 3 at the contact end 101c. The lower clamp arm 96 is in a state of clamping the group guard 33 of the disk 6 as shown in FIG. 7(B). In this state, the claw 95a of the upper clamp arm 95 and the contact end 96a of the lower clamp arm 96 are in a position to contact the group guard 33. Further, as shown in FIG. 10(B), the contact end 96a contacts the wedge-shaped portion 102c, and the sliding portion 1J' 102 is urged to the right side in the figure (in the direction of arrow Y1) by the urging force of the spring 11O. As a result, the lower clamp arm 96 is as shown in Fig. 7 (
The group guard 3 is biased in the direction of arrow 98b in B).
It is holding 3. The second state is the "lid holding state". This is shown in Figure 8 (
As shown in A), the lid 3 is closed and the disc 6 is not clamped. In this state, the sliding member 102 is in an intermediate position among the three states. The latch members 99, 100, the leaf spring 94, and the rotating member 101 are all in the same state as the [lid/disc holding state], and the lid 3 is not hooked as shown in FIG. . However, in this state, since the sliding member 102 has moved from the "lid/disk holding state" to the left side (Y direction) in the figure, the wedge-shaped part 102 is no longer attached as shown in FIG. 10(B).
C and the contact end 96a are not in contact with each other. Therefore, the lower clamp arm 96 is moved by the biasing force of the spring 98 as shown in FIG.
), it opens in the direction of arrow 98a, and the disk 6
It is in a state where it is not pinched. 7 The third state is the "non-retention state". This state is the 9th
As shown in the figure, N3 is in a state where the hook is not stopped and the disc 6 is not clamped. The sliding member 102 is in the position closest to the left side (Y direction) of the three states. The respective driven ends 115, 116 of the latching members 99, 100 are guided by the cam/I4]13°114 and are in the open state as shown in FIG. The lower clamp arm 96 is in the same state as in FIG. 8, and is open and does not clamp the disk 6. The rotating member 101 is in a position as shown in the figure, the contact portion 101b and the protrusion 102b of the sliding member 102 are in contact with each other, and the sliding member 102 is slid to the right (Y2 direction) in the figure by the biasing force of the spring 110. It is regulated not to do so. In this way, the disc holding mechanism 90 can take three states: "lid/disk holding state", "lid holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Y, Y2 direction) of 02. That is, by changing the position of the sliding member 102 in the Y and Y2 directions, the "lid/disk holding state" and the "lid holding state" can be achieved. The disk holding mechanism 90 can be changed into three states including a "non-holding state". However, among the three states above,
The lid holding shape gJ can be held when the sliding member 102 is regulated in the state shown in FIG. 8 by some means against the force of the spring 110. The case expansion mechanism 60 will be explained in detail. 11(A)-(C), FIG. 12(A)-(C), and FIG. 13(Δ)-(C) are explanatory diagrams of the structure and operation of the case expansion mechanism 60. Reference numeral 80 denotes a fixed base of the case expansion mechanism, which is fixed to the chassis 40 of the playback device and is located near the insertion opening 51 as described above. The support member 61 is fixed to a fixed base 80. Reference numeral 62 denotes a retaining member, which is supported by a bearing 63 and a pin 74 fixed to the fixed base 80 so as to be vertically movable. Further, the retaining member 62 is biased by the spring 72 in the direction of the arrow W1 in FIG. 11(B). The expansion member 66 is attached to the support member 61 as shown in the figure.
It is supported by a bearing 67 fixed to a fixed base 80 so as to be vertically movable. The expanding member 66 is formed with an arm 64 and an abutment end 68 . 65 is a slider;
As shown in FIG. 11(C), it is slidably attached to the fixed base 80. The slider 65 is provided with elongated holes 65a and 65b, each with a pin 71.7.
0 engages and slides linearly in the directions of arrows Y and Y2 in the figure. In addition, the contact portion 63 of the bearing 63
As shown in FIG. 11(C), the slider 65 is regulated at its center by a, and is configured to flex only a small amount iJ downward. Further, the slider 65 has an engaging portion 69.
With this configuration, the expanding member 66 rotates in the direction of arrow ■2 in the figure when the slider 65 acts on the right side in the figure (in the direction of arrow Y2), and also rotates on the left side in the figure (in the direction of arrow Y1). ), it rotates in the direction of arrow v1. In addition, the slider 65 and the fixed base 80
A spring 73 is applied between them as shown in the figure, and always urges the slider 65 to the right side (in the direction of arrow Y2) in the figure. Further, the slider 65 is provided with an abutment 0:ii 7 G0 and a notch 65c. A case guide 75 serves to guide the case 2, and is fixed to the fixed base 80. The above is the configuration of the case expanding mechanism 60. Next, it will be explained how the case expanding mechanism 60 expands the case 2 and engages the case 2 to substantially fix it to the playback device. do. When the case 2 is not inserted into the playback device, the case expansion mechanism 60 is in the state shown in FIGS. 11(A) to 11(C). That is, the notch 65 of the slider 65 and the engaging member 62 come into contact with each other, and the slider 65 is regulated in the state shown in the figure against the biasing force of the spring 73. Therefore, the expanding member 66
It is regulated to the positions shown in Figures (B) and (C). The case 2 passes through the insertion opening 51 of the playback device main body 50 into the case expansion mechanism 60 in this state, and the case guide 7
5 and inserted. FIGS. 13A to 13C show the process of inserting the case 2 into the case expansion mechanism 60. FIG. 13(A) shows the case expansion mechanism 60 in one state, which is the same as FIGS. 11(A) to (C). When the case 2 is inserted into the case expansion mechanism 60 in this state while being guided by the case guide 75 in the direction of arrow 2 is expanded as shown in FIG. 13(B). Then, when the case 2 is further inserted, the engaging member 6
The contact end 62a of the engagement member 62 contacts the open end of the case 2, the retaining member 62 rotates in the W2 direction in the figure, and the engagement end 62b of the engagement member 62 contacts the opening end of the case 2, as shown in FIG. 13(C). Engagement hole 1 of case 2
3. In this case, the notch 65 of the slider 65
c and the engaging member 62 are no longer in contact with each other, and the slider 6
5 slides to the right (Y2 direction) as shown in FIG. 12(B) by the biasing force of the spring 73. In the state shown in FIG. 12(B), the expanding member 66 rotates in two directions as shown in the figure, so that it does not interfere with the removal of the disk 6 from the case 2. In FIGS. 12(A) to 12(C), the state of the case 2 at this time, that is, the state of the expanded case 2, is shown by dashed lines. In this state, the engaging portion 2 62 is restricted by the slider 65 so as not to rotate in the W1 direction as shown in FIG. 12(B). Next, for example, if the abutting end 76 of the slider 65 is moved to the left side (Y direction) in the figure by some means, the slider 65 moves in the direction of arrow Y1, and the notch is opened as in the state of the 11th [F]. 6
5C comes to the position of the engaging member 62, the engaging member 62 rotates in the direction of arrow W1 due to the biasing force of the spring 72, and engages the engaging hole 13 of the case 2 with the engaging portion (A 62). In this way, the case expanding mechanism 60 of this embodiment has a means for expanding the case 2 as well as a means for engaging the case 2, and moreover, by not moving the slider 65, the case expanding mechanism 60 can be easily opened. It is possible to release the engagement with the case 2. In addition, in this embodiment, as shown in FIGS.
When the case 2 is inserted into the expansion mechanism 60, the case 2 is engaged, and the slider 65 is operated, the microswitch 200 detects that the case 2 has been expanded and engaged. It is configured so that it can be done. Also, case 2
When the engaging member 62 is engaged, the movement of the engaging member 62 is regulated by the slider 65 as described above, so the case 2 does not come off easily and the playback device 50
It is approximately fixed at . Further, the microswitch 200 detects whether or not the case 2 is engaged with the engagement member 62, and a lamp 500 serves as a notification means to notify this detection state.
(FIG. 5) is provided on the front of the playback device main body 50. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp 500 is connected to remain lit while the engagement member 62 is in the engaged state. Note that a buzzer may be used as this notification means. In the case of a buzzer, it should sound when the state changes from the engaged state to the non-engaged state. The cam unit 160 will be explained in detail. 14 and 16 are operation explanatory diagrams, and FIG. 15 is a timing chart diagram illustrating the movement of the lever. In FIG. 14, the cam 161 is horizontally rotatably supported by a shaft 176, and a bell) 175. War l heat 6
6, the 0" force of the cam drive motor 165 is transmitted, and the cam drive motor 165 can be rotated in both forward and reverse directions. The lever 162 is connected to the shaft 179, and the levers 167 and 168
are rotatably supported on shafts 178, and cams 1
An interlocking member (not shown) that engages with the cam groove 400 of 61 is provided, and when the cam 161 rotates, the cam groove 400
They operate in conjunction with each other. The lever 167 is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. The lever 168 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling member 174 (not shown in FIG. 14, see FIG. 6(C)), and can rotate the shaft 181. This is to raise and lower the support 180. The lever 162 is biased in the P1 direction by a coil spring 163, and therefore the interlocking member 4 provided on the lever 162
04 is always in the cam groove and is biased in the P1 direction. Engagement 5 The pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 65 described above. The lever 162 is rotated by the cam 161 and moves the slider 65 against the spring 73. direction to return the slider 65 to the state shown in FIG. 14(A). The cam groove 400 will be explained using FIG. 16(A). The cam groove 400 includes cam paths 405a and 405h. It is composed of 405c and 405d. Cam groove diameter p
1 is I! It is greater than 2. Lever 167.16
The cam grooves 400 that drive the cam grooves 8 are provided so as to operate according to the timing chart shown in FIG. 10, respectively. Next, the operation of the cam unit 160 will be explained with reference to FIGS. 8 and 16, focusing on the operations of the cam 161 and the lever 162. FIG. 14 shows a state in which the case 2 is not inserted into the playback device, and the corresponding cam 161 and interlocking member 404 are in the state shown in FIG. 16(A). When the case 2 is inserted, the slider 65 moves and the contact member 7
By moving the dowel pin 169, the state shown in FIG. 9 is achieved. The slider 65 is stopped by a stopper 410, as shown in FIG. 14(B), and does not move further. This state is the state shown in FIG. 16(B). The engagement pin 169 is biased by the coil spring 163 so as to come into contact with the contact member 76, and the interlocking member 404 is pushed into the cam groove 400.
It is in a neutral state without contacting the inner wall surface. This state is the t1 state in FIG. 15 (hereinafter, the state will be indicated as tx in the timing chart of FIG. 15). The microswitch 200 detects this state, and the disc clamping mechanism 90 clamps the disc 6 and starts pulling it out from the case 2. The motor 165 is energized, and the cam 61 moves in the A2 direction shown in FIG. 14(B). The above-mentioned first
According to timing chart 1- in Fig. 5, lever 167.
168 is pulled in the B2 direction shown in FIG.
3 states). This state is the state shown in FIG. 16(C). 7 At this time, since the cam groove diameter p2 is smaller than 11, lever 16
2 moves in the B2 direction. The slider 65 is the stopper 41
Since it is locked by 0, it does not move, and only the lever 162 moves. When the cam 6 rotates further,
The state shown in FIG. 16(D) is reached. When a force of 1.16+ is further rotated from FIG. 16(C), the interlocking member 404 moves to the 16th position.
As shown in Figure (D), the lever 162 is located at the branch point between the cam paths 405a and 405c, and the lever 162 is urged to rotate in the B1 direction by the spring 163, and in this state, the abutment member 76 is engaged. It is separated from the pin 169, and as shown in FIG. 16(D), the engaging pin 69 can further rotate in the B1 direction. Therefore, the interlocking member 404 is urged into contact with the inner wall surface of the cam path 405a by the coil spring 163, and when the cam 161 rotates in the A2 direction in this state, the interlocking member 404 enters the cam path 405a. When the cam 161 further rotates, the lever 162 moves in the B1 direction (not shown in FIG. 14), and the lever 168 moves in the B direction. By moving the lever 162 in the B1 direction, the slider 8 is moved to the state shown in FIG. 14(A), and the state in which the engagement member 62 engages the case 2 is released (state 14). At the same time, lever 168 is moved to B1 (not shown in FIG. 14).
direction, and the support 180 descends (state 14)
. When the cam 161 further rotates, the lever 167 moves to the first position.
Move in the direction B in Figure 4, lower the lifting mechanism 134,
Place the disc 6 on the turntable 130 (t5
situation). When the cam 161 further rotates, it enters the t6 state, and the position is detected by a low-return switch (not shown) and the motor 165 is de-energized, so that the force l, 161 is stopped (t6 state). This state is the state shown in FIG. 14(A) and FIG. 16(A), and the cam 161 is rotated 360 degrees.
It will have rotated. After this, when the playback switch is turned on, playback starts. After the playback is finished, the turntable 130 stops and becomes ready for removal, and when the case 2 is inserted into the case expansion mechanism 60, the engagement state of the slider 65 is released and the case 2 is expanded as described above. Almost fixed to the opening mechanism (
t7 state). This is the state shown in FIG. 99 and FIG. 16(B). The microswitch 200 detects this state, and the motor 165 is energized so that the cam l[i+ is rotated in the A1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the lever 167 is first pulled in the direction B2 in FIG. 14, and the elevating mechanism 134 rises.
The disk 6 is supported above a turntable 130. The lever 168 is pulled, the support 180 rises,
The disk 6 is supported (19 state). Furthermore, cam 161
When the lever 167 rotates, the lever 167 moves in the B1 direction and lowers the elevating mechanism 134 (tIG state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During this operation, the cam 161 rotates, and the lever 1
68 moves in the B1 direction, and the support 180 descends (
t11 state). When the cam 161 further rotates, the interlocking member 404 faces the branching member 403b and then enters the cam path 405b, as described above, and becomes the 1 dog state shown in FIG. Case 2
The substantially fixed state of is released, resulting in the state shown in FIGS. 8 and 160 (A). To briefly summarize each state in Fig. 15, 1o is the standby state, tl is the case inserted state, R2 is the lift-L field position, R3 is the support raised position, t3' is the start of slider movement, and R4 is the slider lock (case (withdrawal) R5 is the lift lowering position,

[6 is standby state, R7 is case inserted state, R8 is lift up position, R9 is support up position,
tlo is the lift lowering position, tI+ is the support lowering position,
t1□ indicates slider lock (case detachment). Operation Next, how the entire reproducing apparatus according to this embodiment operates according to the above-mentioned configuration will be explained step by step. Figures 17 to 22, and Figure 23 (A). (B) and Figures 24 (A) to (C) are all 41:
FIG. 2 is a schematic explanatory diagram showing how the various parts of the device operate in conjunction with each other. First, FIG. 17 shows the state before the case 2 is inserted into the main body 50 of the playback device. At this time, the disk holding mechanism 90 is located slightly in front of the center of the turntable 1-pull 130 as shown in the figure. The disk holding mechanism 90 is in the aforementioned "non-holding state". Furthermore, the sabot 180 is in a downward position as shown in FIG. 23(A). Next, the case 2 passes through the insertion opening 51 and moves to the guide 52°53.
When the case 2 is guided and inserted into the case expansion mechanism 60, the opening of the case 2 is expanded by the expansion member 66, and in this state, the engagement hole 13 is engaged by the retention member 62, and the playback device main body 50 It is approximately fixed at . Next, in this state, the microswitch 20 shown in FIG.
07! When l< is detected, the motor 114 operates, and the heald 11
1, the disk holding mechanism 90 is moved forward (X direction) in the figure. Then, as shown in FIG.
contact, the restriction on the sliding member 102 is released, the sliding member 102 slides to the right (arrow Y2 direction), and the disc holding mechanism 90 enters the "lid/disk holding state" as described above. At this time, the contact portion 102a of the sliding member 102 touches the microswitch 20.
1, and the disc clamping mechanism 90 is in this position.
It is detected that the disk is in a "disk hold state". Then, the motor 114 rotates in reverse, and the disk holding mechanism 90 begins to be moved backward in the figure (in the X2 direction). At this time, the roller 103 provided on the sliding member 102 and the slope 190b of the reversing lever 190 come into contact with each other, but the reversing lever 190
Since it can be rotated in the direction of arrow R2 in Figure 8, the reversing lever 19
0 only rotates, there is no problem in transporting the disk holding mechanism 90. Next, FIG. 19 shows the state during the transfer. As shown in the figure, the lid 3 and the disk 6 are held by a disk holding mechanism 90 and pulled out from the case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the sabot 180 rises as shown in FIG. 23(B) and holds the group guard 33 of the disk 6. At this time, support 1
80 only touches the group guard 33, so it does not damage the signal surface of the disc 6. 3. When the disk holding mechanism 90 is further moved backward (in the
and come to approximately corresponding positions. Even in this state, the support 180 is configured as shown in the figure so as to hold the group guard 33 of the disk 6. Next, the center mounting ring 133 is attached to the cam unit 160.
It rises by the action of , and holds the center of the disk 6. FIG. 24(A) is a diagram explaining this state from the side. Next, as shown in FIG. 24(B), the support 180 is lowered by the operation of the cam unit 160. Next, when the disk holding mechanism 90 is further moved backward (in the X2 direction), the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 and the slope of the contact member 43 come into contact with each other, and the sliding member 102 acts to the left (Y direction), resulting in the above-mentioned "lid holding state". In other words, the disk 6 is not held by the disk holding mechanism 90, which is the state shown in FIG. In this state, the disk 6 is held by the mounting ring 33 in the center as shown in FIG. 24(C). Thereafter, when the mounting ring 133 is lowered by the operation of the cam unit 160, the disc 6 is mounted on the turntable 130. Next, the cam unit 160 operates to release the engagement between the engagement member 62 of the case expansion mechanism 60 and the case 2, allowing the empty case 2 to be removed from the playback device. In this state, the turntable 130 rotates, the arm housing 120 scans over the disk 6, and reproduction is performed. At this time, since the lid 3 is held from below by the lid holding members 41 and 42 as shown in FIG. 21, it will not hang down and come into contact with, for example, the arm housing 120 while traveling. When the playback is completed and the user inserts the empty case 2 into the playback device, the engaging member 6 of the case expansion mechanism 60
2 is engaged with the case 2, and the case 2 is connected to the playback device main body 50.
It is in a state where it is approximately fixed to . The microswitch 200 detects this state in the same manner as in step 5 above, and the cam unit 7) 160 operates this time, causing the 'R1 ring 133 to rise, resulting in the state shown in FIG. 24(C). Next, the motor 114 drives the heald 111, and the disk holding mechanism 90 is now moved forward (in the direction of arrow X1), shifting to the state shown in FIG. 24(B). Then, the support 180 is raised by the operation of the cam unit 16°,
The state shown in FIG. 24(A) is reached. After this, place ring 1
33 is lowered by the operation of the cam unit 160, and the disc holding mechanism 90 moves the motor 114.33 forward (in the X direction) while holding the lid 3 and the disc 6. It is transported by the heald 111. In other words, the state shown in FIG. 20 shifts to the state shown in FIG. 19. When the disk holding mechanism 90 is further moved forward (in the X direction), the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact. At this time, since the reversing lever 190 is restricted from rotating in R1, the roller 103 climbs the slope 190a and the sliding member 102 moves to the left (Y direction), resulting in the above-mentioned "non-holding state". ", and the lid 3 is pushed into the case 2 by the biasing force of the leaf spring 94 as in the 22nd time. Then, the motor 114 rotates in reverse again, and the disk holding mechanism 90 is moved rearward (X2 direction) and returns to the position shown in FIG. 17. After this, the cam unit 160 also operates, and the engagement member 62 of the case 2 and the case expansion mechanism 60
The case 2 is disengaged from the case 2, the disc 6 is stored in the case 2, and the case 2 can be taken out from the playback device main body 50 with the lid 3 engaged with the case 2. In this way, the user attaches the case 2 to the playback device main body 50.
By just slightly inserting the disc 6, the disc 6 is automatically taken out from the case 2 and playback becomes possible, and the disc 6 is also automatically stored in the case 2. Therefore, it is convenient to use since there is no need to manually move the case 2 back and forth significantly, and reliable operation can be expected even under severe use by the user. Furthermore, since only the disk 6 and R3 are pulled in without pulling the entire case 2 into the playback device main body 50, there is an advantage that the playback device main body 50 can be made thinner than when the entire case 2 is pulled in. be. The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. In other words, the disk holding mechanism 9 is controlled by a microcomputer and a normal control circuit.
0 and the arm housing 120.
The above operation can be performed by sequentially operating the motor 124 that drives the cam drive motor 124 and the cam drive motor 165. In addition, the disk holding mechanism 90 may be configured as shown in FIG.
In order to stop at each position shown in FIG. 9, FIG. 20, FIG. 21, and FIG. 22, the microswitches 202 to 205 shown in FIG. It is detected that the plate 109 has come into contact with the motor 11.
This is possible by programming to stop 4. Effect 8 of the invention The recording disc playback device of the present invention does not have the problem of the case lid interfering with the playback head during playback, and the user can easily remove the recording medium from the case by simply inserting the case slightly into the playback device main body. This has the effect that the data can be automatically taken out and played back.

[Brief explanation of drawings]

Figures 1 (A) and (B) are a plan view and a sectional view, respectively, of a disk that can be used in an embodiment of the present invention, and Figures 2 and 3 are exploded perspective views, respectively, of a disk case that accommodates the disk. 4(A) to 4(C) are respectively a front view, a plan view, and a side view of the lid of the disc case. FIG. 5 is an external perspective view of an embodiment of the present invention. 6(A) is a perspective view of its schematic configuration, FIG. 6(B) is a sectional view of the rail portion of the movable base, and FIG. 6(C) is a perspective view of the cam unit and lifting mechanism. 7(A) to 7(C) are the same plan view, sectional view, and front view of the lid/disk holding state of the disk holding mechanism, and FIGS. 8(A) and 8(B) are the same (the disk 9 Top view and sectional view of lid holding state of sufu holding mechanism, No. 9
Figures (A) and (B) are a plan view and a sectional view of the disk holding mechanism in the non-holding state, respectively, and Figure 10 (A>
, (B) is an operation explanatory diagram showing the relationship between the sliding member of the disk holding mechanism and the clamp arm, and Fig. 11 (A) -
(C) is a plan view, a sectional view, and a front view of the case expansion mechanism in a state where the case is not inserted, and Fig. 12 (A
) to (C) are a plan view, a sectional view, and a front view of the case expansion mechanism in the case insertion state, respectively, and FIG. 13 (
A) to (C) are diagrams explaining the operation of the case expansion mechanism, Figures 14 (A> and (B) are diagrams explaining the operation of the cam unit, and Figure 15 is a time chart of the cam unit. 16(A) to (D) are explanatory diagrams of the operation of the cam unit, FIGS. 17 to 22 are explanatory diagrams of the operation of the entire playback device seen from above, and FIGS. 23(A) and (B).
24 is an explanatory view of the operation showing the relationship between the support and the disc, and FIGS. 24A to 24C are explanatory views of the operation of the reproducing apparatus shown in longitudinal sectional views. 0 1...Disc case, 2...Case body, 3...
- Lid, 6... Disk (recording medium), 13... Engagement hole, 40... Chassis, 41. ．． 42... Lid holding member (lid supporting means), 50... Playback device main body, 51...
・Case insertion port, 60...Case expansion mechanism, 62...
- Engagement member, 65...Slider, 80...Fixed base, 90...Disc clamping mechanism, 91...Movable base, 95...Upper clamp arm, 96...Lower clamp arm, 99,100... latching member (M latching means),
107, 108...Release member (lid means), 120...
・Arm housing, 134...disc lifting mechanism,
160...Cam unit, 180...Support, 2
00~205...Micro switch 1 Figure 5

Claims (1)

[Claims] A disk case consisting of a case body that has a storage space inside which can store a disk-shaped recording medium and has an opening at one end for taking out the recording medium, and a lid that removably engages with the opening. The recording disk reproducing apparatus used herein includes a reproducing apparatus main body having a reproducing means, a lid releasing means for releasing the connection between the opening of the case body and the lid, and a stopper for hooking and locking the lid. a stop means, a transport means for reciprocating the stop means together with the recording medium within the main body of the playback apparatus, and a lid support means for supporting the lid within a part of the transport path by the transport means. Equipped with a recording disc playback device.