JPH0259544B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a recording medium that automatically takes out a disk from a disk case containing a disc-shaped recording medium (hereinafter referred to as a disk) and returns it to the disk case. This invention relates to a disc playback device.

Conventional configurations and their problems Traditionally, in playback devices for high-density recording disks, such as video disks, as in Japanese Patent Application Laid-Open No. 111158/1983, a disk placed in a cylindrical disk case is manually played back. Increasingly, playback devices are adopting the so-called semi-automatic loading method, in which the player is inserted deep into the case and manually takes out the empty case. However, with this type of semi-automatic loading method, when inserting and removing the case on the Tezuka, the case must be moved back and forth a lot, and the loading method is difficult to perform in a perfect manner to withstand harsh use by the user. There were various problems such as difficulty in constructing the mechanism.

Therefore, we have proposed a playback device that can automatically take out the disk from the disk case and return it to the disk case by simply inserting the disk case slightly into the playback device main body.

Next, the configuration and operation of the playback device will be explained in detail. First, the outline will be explained. As shown in FIG. 6, the playback device main body 50 includes a chassis 40
, the outer case 50a, and the turntable 130
and an arm housing 120. The arm housing 120 mounts the reproducing head. Base 80 fixed to chassis 40
is fixed, and an engaging member 62 serving as a case engaging means is attached to the fixed base 80 so as to be vertically movable. The fixed base 80 is further provided with a case expansion mechanism 60 for opening the opening of the case 2.
The chassis 40 also has front and back directions (X ₁ and X ₂ directions).
A movable base 91 is provided.
The movable base 91 is provided with a disk holding mechanism 90 and lid hooking members 99, 100, and these constitute a transfer means for pulling the disk 6 from the case 2 onto the turntable 130 together with the lid 3. Next, the whole will be explained in detail.

FIGS. 1 to 4 respectively show the configurations of a disk and a disk case that can be used in the recording disk reproducing apparatus according to this proposed example. 1st
In the figure, the disk 6 has a center hole 34, and is provided with a bank-like outer circumferential groove guard 33 and an inner circumferential groove guard 32. L ₁ is the inner diameter of the disk 6, L ₂ is the diameter of the disk 6, T ₁ is the thickness of the groove guard, and T ₂ is the thickness of the recording surface. In FIG. 2, a rectangular disk case 1 includes a disk case body 2 (hereinafter referred to as the case) and a case 2.
and a lid 3 that is removably connected to an opening 7 provided on the front side in the insertion direction _X1 into the device. 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 has groove-shaped recesses 1 on the left and right sides.
It consists of a flat plate part 8 having a flat plate part 7, and protruding strip parts 9, 10, 11 along the three sides of the plate part 8. At the center near the opening 7 is an engagement hole 13 into which a convex portion of the lid 3 to be described later engages.
is formed, and engagement holes 16 are formed on the left and right sides of the opening 7, into which the protrusions of the lid 3 engage.

At the end of the lid 3, there is a flange portion 1 that closes the opening 7 of the case 2 when the lid 3 is engaged and fixed to the case 2.
8 is provided, and a notch 19 is provided symmetrically about the center line l into which an expanding member, which will be described later, 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 has an inclined portion 26 that engages with the release member of the lid 3.
is provided. 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 lid 3 engages with the case 2 to close the opening 7, the disk 6 is housed without falling out of the case 2.

FIG. 4 is a detailed view of the lid 3, in which the shape of the side facing the disk 6 is formed, for example, into an arc with a gap b at both ends larger than a gap a in 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 reproducing 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. FIGS. 6A to 6C show the basic configuration of a recording disk reproducing apparatus. In FIG. 6A, 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 disk 6 placed on the turntable 130. Reference numeral 132 denotes a clamp, which presses the disk 6 placed on the turntable 130 into contact with the turntable 130. 40 is a chassis, and a guide 52 that guides the case 2 into the playback device main body 50;
53 is fixed. Guides 52a and 53a are guide grooves. A case expansion mechanism 60 is fixed on the chassis 40 near the case insertion opening 51. Reference numeral 66 denotes an expansion member that is supported by the fixed base 80 so as to be able to move up and down.
expand. The fixed base 80 is fixed to the chassis 40. The engaging member 62 is rotatably supported on the fixed base 80 by a shaft 74 and a bearing 63, and functions to engage with the case 2 engaging 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, and the disc 6 is held between these arms. Reference numerals 99 and 100 indicate lid hooking members, which are supported by pins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91, and engage with the notch 19 of the lid 3 to latch the lid 3. . A leaf spring 94 is attached to the movable base 91 at a position where it comes into contact with the lid 3.

Claw-shaped release members 107 and 108 are integrally formed with the movable base 91 and function to engage with the slope 26 of the protrusion 24 of the lid 3 to release the engagement between the lid 3 and the case 2.

A movable base 91 of the disk holding mechanism 90 is supported by rails 45, 46, and 47 so as to be movable in the front and rear directions (X ₁ and X ₂ directions). rail 45
has V-grooves on both sides as shown in FIG. 6B, and a roller 92 rotatably provided on a movable base 91 fits into the V-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. belt 111
is hung between gears 112 and 113,
The belt 111 is driven by a motor 114 equipped with a speed reducer, and the disk holding mechanism 90 is moved. The movable base 91 is provided with a switch 515 (not shown in FIG. 6, see FIG. 7), which includes a photo switch 513, which is fixed to the chassis 40.
514 is blocked by a switch plate 515 to detect the position of the movable base 91.

In FIG. 6C, reference numeral 508 is a release mechanism that releases the disk holding state of the holding mechanism 90. The release mechanism 508 has a slope 510 and a block 5.
09 and a rotating lever 511, and is supported by a pin 520 so as to be rotatable in the E ₁ and E ₂ directions. The rotating lever 511 is connected to a lever 515 provided on the lifting mechanism 134 via a wire 512.
It is connected to and is configured to rotate in conjunction with the operation of the elevating mechanism. Reference numeral 120 denotes an arm housing, which moves the top of the turntable 130 in the left-right direction (Y ₁ ,
It is movably supported in two directions (Y ₂ directions). Like the disk holding mechanism 90, the arm housing 120 is also operated by a motor 124 and a belt (not shown).
Disc 6 placed on turntable 130
It is configured so that the signal from the disk 6 is picked up by being transferred in parallel above the disk 6.

In FIG. 6C, 180 is a support that supports the disk 6, and includes a shaft 181 and a bearing 18.
2 for vertical movement (in the M ₁ and M ₂ directions). The support 180 is provided in two parts, left and right, as shown in the same figure, and the groove guard 33 of the disk 6 is provided in the Y ₁ and Y ₂ directions (see FIG. 6A) so that the groove guard 33 of the disk 6 can be held. 3
It is constructed so that it can hold a range larger than the diameter of 3. Further, the support 180 is configured to be in a state below the turntable 130 and a state in which it can protrude above the turntable 130 and support the disk 6 held by the disk holding mechanism 90.

134 is 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. lift arm 142
By rotating the lift ring 136 (see FIG. 24) supported by the lift arm 142 and located at the lower part of the lifting ring 135, the disk 6 is lifted and lowered by the mounting ring 133 fixed to the lifting ring 135. The device 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 130.

A cam unit 160 drives the support 180, the disk elevating mechanism 134, and the case expanding mechanism 60 described above. 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, supported horizontally by a shaft 179 and a bearing 163, and is supported by a spring 172.
P is biased in _one direction. Lever 167, 16
8 is the shaft 178 and bearings 170 and 17, respectively.
It is rotatably supported by 1. Each lever 162, 167, 168 is linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15). 190 is a reversing lever for switching the operation of the disk holding mechanism 90. 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. 140 is a turntable driving motor. In FIG. 6A, 200 to 205 are micro switches. The micro switch 200 is a switch for detecting the operation of the case expansion mechanism 60. The micro switch 201 is a switch for detecting the operation of the disk holding mechanism 90. Micro switches 202 to 205 and photo switch 51
3,514 is a position detection switch for the disk holding mechanism 90.

The disk holding mechanism 90 will be explained in detail. FIGS. 7A to 7C, FIGS. 8A and 8B, FIGS. 9 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. 7C. 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. Reference numeral 95 denotes an upper clamp arm, which is formed integrally with the movable base 91, and is attached to the claw 9 as shown in FIG. 7B.
5a is formed. Lower clamp arm 96 is rotatably supported by bearing 97 and biased by spring 98 in the direction of arrow 98a. 9
Reference numerals 9 and 100 denote lid hooking members that engage with the notches 19 of the lid 3 to latch the lid 3. Lid hanging member 99,
100 is supported by pins 105 and 106, respectively, so as to be horizontally rotatable relative to the movable base 91. In addition, cam grooves 113 and 114 provided in the sliding member 102 are provided in the lid hooking members 99 and 100.
A driven end 115, 116 is provided, respectively, which is guided by. The sliding member 102 is approximately plate-shaped,
The cam grooves 113, 114 are guided by pins 105, 109 and move approximately linearly in the direction of arrow _Y1 or _Y2 . The sliding member 102 has a roller 103 rotatably attached to the left side of the center in the figure, a protrusion 102b, and an abutting portion 102a and a spring catch 110a on the opposite side. The protrusion 102b passes through the square hole 91b drilled in the movable base 91 and is inserted into the contact portion 101b of the rotating member 101 (see FIG. 7C).
It is configured so that it can come into contact with the In addition, the spring hook 111b and the spring hook portion 11 of the movable base 91
The sliding member 102 is always biased in the direction of arrow _Y2 by a spring 110 applied between Y2.
Further, the sliding member 102 is provided with a wedge-shaped portion 102c, and as shown in FIGS. 10A and 10B, the wedge-shaped portion 102c and the contact end 96 of the lower clamp arm
It is configured so that it can come into contact with a. Rotating member 1
01 is horizontally rotatably supported by a movable base 91 by a fulcrum 101a, and urged by a spring 104 to rotate in the direction of an arrow 104a (FIG. 7A). Further, as described above, the rotating member 101 is formed with an abutting end 101c that can abut the lid 3 in addition to the abutting portion 101b. Contact part 101
b 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, and the inclined portion 26 of the protrusion 24 of the lid 3
This is to release the engagement between the lid 3 and the case 2. Reference numeral 109 denotes an abutment plate, which is provided at a position where it can abut against the microswitches 202-205. A connecting piece 110' connects the belt 111 and the 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/disc holding state". To do this, latch the lid 3 as shown in Figure 7A,
This is a state in which the disk 6 is sandwiched. In this state, the sliding member 102 is in a position closest to the right side in the figure (in the direction of arrow _Y2 ) among the three states. The lid hooking members 99 and 100 are in a position where the lid 3 is restricted as shown in the figure by having driven ends 115 and 116 guided by cam grooves 113 and 114, respectively.
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 abutting end 101c. The lower clamp arm 96 is in a state where the disk 6 is held between the groove guard 33 as shown in FIG. 7B. In this state, the claw 95a of the upper clamp arm 95
The contact end 96a of the lower clamp arm 96 is in a position to contact the groove guard 33. Also, the 10th
As shown in Figure B, the abutting end 96a is wedge-shaped part 102c.
, and the sliding member 102 is urged to the right in the figure (in the direction of arrow _Y1 ) by the urging force of the spring 110. As a result, the lower clamp arm 96 moves in the direction of arrow 98b in FIG. 7B. The groove guard 33 is held in place by being biased in the direction shown in FIG.

The second state is the "lid holding state". this is,
As shown in FIG. 8A, the lid 3 is latched and the disk 6 is not clamped. In this state, the sliding member 1
02 is in the middle position among the three states. The lid hanging members 99, 100, the leaf spring 94, and the rotating member 101 are all in the "lid/disk holding state"
The condition is similar to that shown in FIG. 8, and the lid 3 is latched as shown in FIG. However, in this state, the sliding member 1
02 has moved from the "lid/disk holding state" to the left side of the figure ( _Y1 direction), so as shown in FIG. 10B, the wedge-shaped part 102c and the contact end 96a are no longer
are not in contact. Therefore, the lower clamp arm 9
6 is opened in the direction of arrow 98a as shown in FIG. 8B by the biasing force of the spring 98, and is in a state in which the disk 6 is not clamped.

The third state is a "non-retention state." In this state, as shown in FIG. 9, the lid 3 is not latched and the disc 6 is not clamped. Sliding member 10
2 is the most left side of the three states (Y ₁ direction)
It is located in the same position. The lid hooking members 99 and 100 have driven ends 115 and 116 that are connected to the cam grooves 113 and 116, respectively.
114 and is 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 the position shown in the figure, and the contact portion 101b and the protrusion 10 of the sliding member 102
2b abut against each other, and the sliding member 102 is restricted from sliding to the right ( _Y2 direction) in the figure by the biasing force of the spring 110.

In this way, the disk holding mechanism 90 can be operated in "lid/disk holding state", "lid holding state", and "non-holding state".
It can take three states. These three states are all based on the sliding direction of the sliding member 102 (Y ₁ , Y ₂ direction)
It is regulated by the position of In other words, by changing the position of the sliding member 102 in the Y ₁ and Y ₂ directions,
The disk holding mechanism 90 can be changed into three states: "lid/disk holding state", "lid holding state", and "non-holding state". However, among the above three states, in the "lid holding state", the sliding member 102 is held by the spring 1.
It can be held when it is regulated to the state shown in FIG. 8 by some means against a force of 10.

The case expansion mechanism 60 will be explained in detail.
Figure 11 A-C, Figure 12 A-C, Figure 13 A-
C is an explanatory diagram 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. Support member 6
1 is fixed to a fixed base 80. Reference numeral 62 denotes an engaging member, which includes a bearing 63 fixed to the fixed base 80.
It is supported by pins 74 so as to be vertically movable. Also, the spring 72 causes the engagement member 62 to move to the first position.
It is biased in the direction of arrow _W1 in Figure 1B. The expansion member 66 is provided at a position corresponding to the support member 61 as shown in the figure, and 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 . A slider 65 is slidably attached to the fixed base 80, as shown in FIG. 11C. The slider 65 has a long hole 65
a, 65b are provided, and pins 71, 7 are provided respectively.
0 engages with each other and slides linearly in the directions of arrows Y ₁ and Y ₂ in the figure. Furthermore, the slider 65 is restricted at its center by the abutting portion 63a of the bearing 63, as shown in FIG. 11C, and is configured to flex only slightly downward. Further, the slider 65 is provided with two engaging portions 69, and with this configuration, the expanding member 66 moves in the direction indicated by the arrow V ₂ in the figure when the slider 65 acts on the right side (arrow Y ₂ direction) in the figure. direction, and also to the left side of the figure (arrow Y ₁
direction), it rotates in the direction of arrow _V1 . Additionally, a spring 73 is applied between the slider 65 and the fixed base 80 as shown in the figure, and the slider 65 is moved to the right side of the figure (in the direction of arrow _Y2 ).
is always encouraged. Further, the slider 65 is provided with an abutting end 76 and a notch 65c. 75
is a case guide which serves to guide the case 2 and is fixed to the fixed base 80.

The above is the configuration of the case expansion mechanism 60. Next, how does this case expansion mechanism 60 work with the case 2?
Explanation will be made on how to expand the case 2 and engage the case 2 so as to substantially fix it to the playback device. When the case 2 is not inserted into the playback device, the case expansion mechanism 60
is in the state shown in FIGS. 11A to 11C. 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 is restricted to the position shown in FIGS. 11B and 11C. In this state, the case 2 is attached to the insertion opening 51 of the playback device main body 50 in the case expansion mechanism 60.
It is guided through the case guide 75 and inserted.

13A to 13C show the process of inserting the case 2 into the case expansion mechanism 60. 13th
FIG. A shows the case expansion mechanism 60 in the same state as FIGS. 11A to 11C. When the case 2 is inserted into the case expansion mechanism 60 in this state as shown in the figure in the direction of _arrow Case 2 is expanded as shown in FIG. 13B. Then, when the case 2 is further inserted, the contact end 62a of the engagement member 62 contacts the open end of the case 2, and the engagement member 62 rotates in the _W2 direction in the figure.
As shown in FIG. 13C, the engaging end 62b of the engaging member 62
engages with the engagement hole 13 of the case 2. In this case, the notch 65c of the slider 65 and the engaging member 62
is no longer in contact with the slider 65 and the spring 7
3, it slides to the right ( _Y2 direction) as shown in FIG. 12B. In the state shown in Figure 12B,
As shown in the figure, the expansion member 66 is rotated in the _V2 direction so that it does not interfere with the removal of the disk 6 from the case 2. Figures 12 A to C show the state of case 2 at this time, that is, expanded case 2.
The state is shown by a dashed line. In this state,
The engaging member 62 is moved by the slider 65 as shown in FIG. 12B.
It is regulated so that it does not rotate in the W ₁ direction as shown in the figure. Next, for example, if the abutting end 76 of the slider 65 is moved to the left side ( _Y1 direction) in the figure by some means, the slider 65 moves in the direction of the arrow _Y1 ,
When the notch 65c comes to the position of the engaging member 62 as in the state shown in _FIG . The engagement between the hole 13 and the engagement member 62 is released.

In this way, the case expansion mechanism 60 of this proposed example
The device has a means for expanding the case 2 and a means for engaging the case 2, and furthermore, by moving the slider 65, the engagement with the case 2 can be easily released.

In addition, in this proposed example, as shown in FIGS. 11 and 12, the micro switch 200 is provided at a position where it can come into contact with the slider 65, so that the case 2 is inserted into the expansion mechanism 60 and the case 2 is engaged. When the slider 65 is engaged and the slider 65 is operated, it is possible to detect that the case 2 is opened and engaged by the microswitch 200. In addition, when the case 2 is engaged with the engagement member 62, the movement of the engagement 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 will be in a substantially fixed state.

Further, the micro switch 200 detects whether or not the case 2 is engaged with the engaging member 62, and a lamp 500 (FIG. 5) serving as a notification means for notifying this detection state is connected to the main body of the playback device. 50. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp 500 includes an engaging member 6
2 is connected so that it continues to light up while it 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 disengaged state.

The cam unit 160 will be explained in detail.
14 and 16 are operation explanatory diagrams, and FIG. 15 is a timing chart explaining the movement of the lever. In FIG. 14, a cam 161 is horizontally rotatably supported by a shaft 176, and the power of a cam drive motor 165 is transmitted via a belt 175 and a worm 166, so that the cam 161 can rotate in both forward and reverse directions.
The lever 162 is attached to the shaft 179, and the lever 167,
168 is rotatably supported by the shaft 178, and is provided with an interlocking member (not shown) that engages with the cam groove 400 of the cam 161.
1 rotates, each operates in conjunction with the cam groove 400. The lever 167 is coupled to the lifting mechanism 134 via a connecting member 173, and the lever 167 is connected to the lifting mechanism 134 via a connecting member 173.
4. 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. 6C), and by rotating the shaft 181, The support 180 is raised and lowered. The lever 162 is a coil spring 16
Therefore, the interlocking member 404 provided on the lever 162 is always in the cam groove and is urged in _{the P1} direction. The engagement 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.
Y ₁ direction and slider 65 in Fig. 14A.
This is to restore the state to.

The cam groove 400 will be explained using FIG. 16A. The cam groove 400 is connected to the cam paths 405a, 40
5b, 405c, and 405d.
The cam groove diameter l ₁ is larger than l ₂ . Lever 1
The cam grooves 400 that drive the cam grooves 67 and 168 are provided 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. Figure 14 shows
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. 16A. When the case 2 is inserted, the slider 65 moves and the abutment member 76 moves the engagement pin 169, resulting in the state shown in FIG. 9. The slider 65 is stopped by a stopper 410, as shown in FIG. 14B, and will not move further. This state is the state shown in FIG. 16B. The engagement pin 169 is biased by the coil spring 163 so as to come into contact with the abutment member 76.
The interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is the first
This is the _t1 state in Figure 5 (hereinafter, the state will be indicated as _tX in the timing chart in Figure 15).

The micro switch 200 detects this state,
The disc clamping mechanism 90 clamps the disc 6 and starts pulling it out from the case 2, and the motor 165
is energized, and the cam 161 moves to A ₂ as shown in FIG. 14B.
15, the levers 167, 168 are pulled in the _B2 direction shown in FIG. 14B, the support 180 and the lifting mechanism 134 rise, and the turntable 13
The disk 6 is supported above 0 (t ₂ , t ₃ states).
This state is the state shown in FIG. 16C. At this time, since the cam groove diameter l ₂ is smaller than l ₁ , the lever 162 moves in the P ₂ direction. Since the slider 65 is locked by the stopper 410, it does not move, and only the lever 162 moves. When the cam 6 further rotates, the state shown in FIG. 16D is achieved. When the cam 161 rotates further from FIG. 16C, the interlocking member 40
4 is a cam path 405a as shown in FIG. 16D.
and 405c, lever 16
2 is biased to rotate in the _P1 direction by a spring 163,
In this state, the contact member 76 is separated from the engagement pin 169, and the engagement pin 169 is further rotatable in the _P1 direction as shown in FIG. 16D. 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 16
2 is the lever 168 again in the _P1 direction shown in FIG.
moves in _B1 direction. By moving the lever 162 in the _P1 direction, the slider 65 is moved to the state shown in FIG.
Release the state of engagement (t ₄ state). At the same time, the lever 168 moves in the _B1 direction shown in FIG. 14, and the support 180 descends ( _t4 state).
When the cam 161 further rotates, the lever 167 moves in the _B1 direction in FIG. 14, lowers the elevating mechanism 134, and places the disk 6 on the turntable 130 (state _t5 ). When the cam 161 further rotates, it enters the t ₆ state, and the position is detected by a rotary switch (not shown) and the motor 165 is de-energized, thereby stopping the cam 161 (t ₆ state). This state is shown in Figures 14A and 16.
In the state shown in Figure A, the cam 161 has rotated 360 degrees.

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. It is almost fixed to the opening mechanism ( _t7 state). This is the situation shown in FIGS. 9 and 16B. The micro switch 200 detects this state, and the cam 16
The motor 165 is energized so that the motor 165 rotates 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 _B2 direction in FIG. The lever 168 is pulled and the support 180 rises to support the disk 6 (state _t9 ). Furthermore, cam 16
1 rotates, the lever 167 moves in the _B1 direction and lowers the elevating mechanism 134 ( _t10 state). After that, the disk holding mechanism 90 holds the disk 6.
is collected into case 2. During that operation, cam 1
61 rotates, lever 168 moves in direction _B1 ,
Support 180 falls (t ₁₁ state). When the cam 161 further rotates, the interlocking member 4
04 is the rear cam path 4 facing the branching member 403b
05b, the state shown in FIG.
It will be in the state shown in Figure A.

To briefly summarize each state in Fig. 15, t ₀ is standby state, t ₁ is case inserted state, t ₂ is lift raised position, t ₃ is support raised position, t ₃ ′ is slider movement start, t ₄ is Slider lock (case removal),
t ₅ is the lift lowered position, t ₆ is the standby state, t ₇ is the case inserted, t 8 is the lift raised position, t ₉ is the support raised position, _{t 10 is} the lift lowered position, t ₁₁ is the support lowered position, t ₁₂ indicate the slider lock (case release).

Next, the release mechanism will be explained in detail using FIGS. 25 and 26. 25 and 26 show that when the disc 6 is used, the release mechanism 508 is
0 indicates the operation of releasing the disk 6 from being held between them. FIG. 25A is the state shown in FIG. 26B. Reference numeral 103 denotes a roller provided on the sliding member 102 mentioned earlier in the description of the clamping mechanism. 26th
Figure B shows the "lid/disc holding state". Next, when the lever 511 is pulled, the release mechanism rotates in the _E1 direction and enters the state shown in FIG. 26C. If the clamping mechanism 90 moves in the _X2 direction in this state, the roller 103
climbs up the slope 510 and reaches the state shown in FIG. 26D. This state is the aforementioned "lid holding state". This state is shown in FIG. 25, and the state in which the disc 6 is held by the holding mechanism 90 is released.

Operation Next, how the entire reproducing apparatus according to this embodiment operates with the above configuration will be explained step by step. 17 to 22, FIGS. 23A and 23B, and FIGS. 24A to 24C are all schematic explanatory diagrams showing how the various parts of the reproducing apparatus are operated 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 130 as shown in the figure.
The disk holding mechanism 90 is in the aforementioned "non-holding state". Further, the support 180 is in a lowered position as shown in FIG. 23A.

Next, the case 2 passes through the insertion port 51 into the guide 5.
2 and 53 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 opened by the engagement member 62. They are engaged and become substantially fixed to the playback device main body 50.

Next, the micro switch 200 shown in FIG. 6 detects this state, and the motor 114 operates to drive the belt 111, thereby moving the disk holding mechanism 90 forward in the figure (in the _X1 direction). Ru.
Then, case 2 is expanded as shown in Figure 18.
The disk holding mechanism 90 enters into the lid 3, the rotating member 101 comes into contact with the lid 3, and the sliding member 102, which is released from its regulation, moves to the right side (arrow Y ₂ direction).
As described above, the disc holding mechanism 90 enters the "lid/disc holding state". At this time, the contact portion 102a of the sliding member 102 contacts the microswitch 201, and it is detected that the disc holding mechanism 90 is in the "lid/disk holding state" at this position. Then, the motor 114 rotates in reverse, and the disk holding mechanism 90' begins to be moved rearward in the figure (in the _X2 direction). At this time, the roller 103 provided on the sliding member 102 and the slope 19 of the reversing lever 190
0b, but the reversing lever 190
Since it can rotate in _{the two} directions indicated by arrow R in the figure, just by rotating the reversing lever 190, the disk clamping mechanism 90
There will be no problem in transporting.

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, as shown in this figure, disk 6 is inserted halfway.
When the support 180 is pulled out, the support 180 rises as shown in FIG. 23B, and the groove guard 3 of the disk 6
Hold 3. At this time, the support 180 only touches the groove guard 33, so the disk 6
will not damage the signal surface.

Furthermore, the disk holding mechanism 90 is located at the rear (X ₂ direction).
When the disk is moved to the position, the switch plate 515 of the disk holding mechanism 90 comes to a position where it blocks the photo switch 514. From this position, the disk holding mechanism 90
The speed at which the image is transferred is reduced and the image is accurately stopped at the position of the photo switch 513. At this position, as shown in FIG. 20, the center boss 131 at the center of the turntable 130 and the center hole 34 of the disk 6 almost correspond to each other. Even in this state, the support 180 is configured as shown in the figure so as to hold the groove guard 33 of the disk 6.

Next, the central mounting ring 133 is raised by the operation of the cam unit 160 and holds the central portion of the disk 6. FIG. 24A is a diagram explaining this state from the side. Next, as shown in FIG. 24B, 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 X ₂ direction), the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 comes into contact with the slope 510 of the release mechanism 508, and the sliding The member 102 works to the left (Y ₁ direction),
The state will be in the "lid holding state" mentioned above. 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 133 in the center as shown in FIG. 24C. After this, the mounting ring 1 is moved by the operation of the cam unit 160.
33 is lowered, the disk 6 is placed on the turntable 130. Next, cam unit 1
60 operates, the engagement between the engagement member 62 of the case expansion mechanism 60 and the case 2 is released, and the empty case 2 can 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, the lid 3 does not hang down and come into contact with, for example, the arm housing 120 while traveling.

When the playback is finished and the user inserts the empty case 2 into the playback device, the case expansion mechanism 6 opens.
The engagement member 62 of No. 0 engages with the case 2, and the case 2 becomes substantially fixed to the playback device main body 50. The micro switch 200 detects this state in the same manner as described above, and this time the cam unit 160
operates, the mounting ring 133 rises, and the 24th
It will be in the state shown in Figure C.

Next, the motor 114 drives the belt 111, and this time the disk holding mechanism 90 moves forward (arrow
_X1 direction) and transitions to the state shown in FIG. 24B. Next, the support 180 connects to the cam unit 1.
It rises due to the operation 60 and becomes the state shown in FIG. 24A. Thereafter, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disk holding mechanism 9
0 is transported forward (in the _X1 direction) by a motor 114 and a belt 111 while holding the lid 3 and disk 6. In other words, from the state in Figure 20 to the first
This results in a transition to the state shown in Figure 9.

Furthermore, the disk holding mechanism 90 is located at the front ( _X1 direction).
When the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact with each other. At this time, since the reversing lever 190 is restricted from rotating to _R1 , the roller 1
03 climbs the slope 190a, and the sliding member 102 moves to the left ( _Y1 direction), resulting in the above-mentioned "non-holding state".
As shown in FIG. 22, the lid 3 is pushed into the case 2 by the biasing force of the leaf spring 94.

Then, the motor 114 is reversely rotated again, and the disk holding mechanism 90 is moved rearward (in the _X2 direction) and returned to the position shown in FIG. After this, the cam unit 160 operates again, and the engagement between the case 2 and the engagement member 62 of the case expansion mechanism 60 is released, the disk 6 is housed in the case 2, and the lid 3 is moved from the case 2. Case 2 is engaged with Case 2.
can be taken out from the playback device main body 50.

In this way, the user can automatically take out and recover the disc 6 by simply inserting the case 2 that houses the disc 6 into the main body 50 of the playback device.

However, in the proposed example, when recovering the disk, the roller 103 of the disk holding mechanism 90 climbs the slope of the reversing lever 190, and the micro switch 202
At the position, the above-mentioned "non-holding state" is reached, and the leaf spring 9
The lid 3 was pushed into the case 2 with a biasing force of 4, but since the "non-retained state" was determined by the position of the disk clamping mechanism 90, due to variations in the position of the micro switch 202, the lid 3 was pushed into the case 2. It is difficult to bring the lid 3 and disk 6 into the "non-retained state" when they are fully pushed in, and accidents have occurred in which the lid 3 is not completely pushed into the case 2. This has been an obstacle to the widespread use of autorotating regeneration devices in the market.

OBJECTS OF THE INVENTION It is an object of the present invention to provide an autoloading type recording disk reproducing device that can reliably take out and recover a disk from a case.

Composition of the Invention The recording disk reproducing device of the present invention includes a disk case main body having an opening at one end and a storage space inside which can accommodate a disk-shaped recording medium, and a lid that is removably engaged with the opening. A recording disk playback device using a disk case consisting of a latching state in which the lid is latched and engaged with the disk case inserted into a disk case insertion slot of the main body of the playback device, and a latching state in which the lid is latched. a lid latching means that takes a non-latching state, an operating means that moves the lid latching means from the latching state to the non-latching state, and a lid latching means that moves the lid latching means to move the lid. and a transport means for transporting the disk-shaped recording medium in a direction to take it in and out of the disk case, and a movement means for moving the clamping means to the clamping means only when the clamping means is transported in a direction to collect the disc-shaped recording medium. and a regulating means for regulating the movement from the stopped state to the non-latched state.

With this configuration, when collecting the disc-shaped recording medium, the holding means can be operated reliably, and the disc-shaped recording medium and the lid can be automatically collected into the disc case.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention is shown in FIGS. 27 and 28A-
Shown in D. The configuration and operation of the playback device main body 50 are the same as those in the proposed example. In Figure 27,
700 is a reversing lever, which is rotatably supported by a bearing 702. Reference numeral 701 denotes a contact portion provided on the reversing lever 700, and is in a positional relationship facing the locking pin 710 provided on the cam 161 as shown in FIG. 27B. In the 28th,
705 is a tension coil spring, and the reversing lever 70
0 to rotate in the _R1 direction. In addition,
The reversing lever 700 is locked by the pin 178 and will not rotate further in the _R1 direction due to the state shown in FIG. 28A. Further, the locking pin 710 is provided at one location on the cam 161, and
rotates, and as shown in FIG. 28C and D, the contact portion 701
When the reversing lever 700 comes to the position facing the R 2 direction, the reversing lever 700 becomes unable to rotate in the _R2 direction from the state shown in FIGS. 28C and 28D.

In addition, the position of the cam 161 in FIGS. 28C and D is as follows.
This is the state at _t11 shown in the timing chart of FIG. In this state, the disk 6 is supported by the disk holding means 90 and the case 2 during recovery,
The lifting mechanism 134 and the support 180 are in a lowered state. By stopping the cam 161 in this state, the reversing lever 700 can be locked. Note that the reversing lever 700 serves as an operating means for operating the lid latching members 99, 100, which serve as lid latching means, from the latching state to the non-latching state. The lid hooking members 99, 100 are attached to the sliding member 1 as described above.
02, the roller 103 provided on the sliding member 102 climbs the slope of the reversing lever 700 as the movable base 91 moves, thereby moving the lid latching members 99, 100 to the non-latching state. Have them do the action. The locking pin 710 serves as a regulating means for regulating the reversing lever 700, which is an operating means. In addition, the case 2
A release means for releasing the engagement of the lid 3 is configured.
Furthermore, with the movable base 91 and its driving device,
A means for transporting clamp arms 95 and 96 serving as a clamping means is constructed.

Operation Next, how this embodiment operates within the playback device will be explained. The operations other than those described below are the same as those of the proposed example described above.

First, when the case 2 is inserted into the playback device main body 50, the case 2 is expanded by the case expansion mechanism 60, engaged by the engaging member 62, and substantially fixed to the playback device main body 50. Next, the disk holding mechanism 90 is transferred and enters the case 2, and enters the "lid/disk holding state". This state is the state shown in FIG. 28B. At this time, since the rotation of the reversing lever 700 is not restricted by the locking pin 710, it rotates in the _R2 direction, and the roller 103 of the disk holding mechanism 90 moves. At that time, the reversing lever 70
0 is pulled by the coil spring 705 and returns to its original position. Thereafter, the disk holding mechanism 90 is moved in the direction of pulling out the disk 6 and the lid 3 in the "lid/disk holding state", and the roller 103 comes into contact with the slope 703a of the reversing lever 700, but the reversing lever 700 is rotatable. Therefore, the disk holding mechanism 90
There is no problem in transferring the disk 6, and the disk 6 is transferred and placed on the turntable 130, and becomes ready for playback.

After the playback is completed, when the empty case 2 is inserted into the playback device main body 50, the disk 6 is inserted as in the proposed example.
Then, the transfer of the lid 3 is started. The disk holding mechanism 90 is transferred and its roller 103 comes to the position shown in FIG. 28C. In this state, the cam 161 is stopped at _t11 in the timing chart of FIG. 15, and the disk 6 is supported by the disk holding mechanism 90 and the case 2 and is being transferred into the case 3. At this time, the locking pin 710
prevents the reversing lever 700 from rotating. When the roller 103 is transferred in this state, the state shown in FIG. In addition to the force pushing the lid 3 into the case 2, the pushing force of the disk holding mechanism 90 is added, so the lid 3 and the disk 6 can be reliably recovered into the case 2.

Effects of the Invention In the recording disc playback device of the present invention, when the user slightly inserts the case housing the disc into the main body of the playback device, the disc is automatically taken out from the case and playback becomes possible. . In addition, after playback is complete, just by slightly inserting the empty case into the main body of the playback device, the disk is automatically transferred into the case, stored in the case, and the lid is securely engaged with the case. can do,
This has the effect of preventing accidents during disk recovery and ensuring reliable recovery operations.

[Brief explanation of the drawing]

1A and 1B are a plan view and a sectional view, respectively, of a disk that can be used in one embodiment of the present invention, and FIG.
3 and 3 are respectively a cutaway exploded perspective view and an assembled perspective view of the disk case that houses the disk, and FIGS. 5
The figure is an external perspective view of a proposed example of a recording disc playback device that is the basis of this invention, FIG. 6A is a perspective view of its schematic configuration, FIG. Figure C is a perspective view of the cam unit and lifting mechanism, Figures 7A to C are a plan view, cross-sectional view, and front view of the disk holding mechanism in the lid/disk holding state, Figures 8A,
B is a plan view and a sectional view of the disk holding mechanism in the lid holding state, FIGS. 9A and B are a plan view and a sectional view of the disk holding mechanism in the non-holding state, and FIGS. 10A and B are Similarly, FIGS. 11A to 11C are operational explanatory diagrams showing the relationship between the sliding member and the clamp arm of the disk holding mechanism, and FIGS. Figure 12 A~
C is a plan view, a sectional view, and a front view of the case expansion mechanism in the case insertion state;
Figures A to C are diagrams explaining the operation of the case expansion mechanism, Figures 14A and B are diagrams explaining the operation of the cam unit, Figure 15 is a time chart of the cam unit, and Figures 16A to D are diagrams of the cam unit. FIGS. 17 to 22 are explanatory diagrams of the operation of the playback device as seen from above, and FIGS.
Figures A and B are operation explanatory diagrams showing the relationship between the support and the disk, Figures 24 A to C are operation explanatory diagrams showing the longitudinal side of the playback device, and Figure 25
26 is a plan view illustrating the release mechanism, FIG. 27 is a diagram illustrating the operation of the reversing lever which is a main part of an embodiment of the present invention, and FIG. 28 is a diagram illustrating the operation of the reversing lever. It is a top view for explaining operation. 1...Disk case, 2...Case body, 3
...Lid, 6...Disk (recording medium), 13...
Engagement hole (engagement part), 40... Chassis, 50...
Playback device main body, 51... Case insertion slot, 60...
Case expansion mechanism, 62... engaging member (case engaging means), 62a... abutting end, 62b... engaging end,
65...Slider, 80...Fixed base, 90...
...Disc holding mechanism, 91...Movable base, 95
...Upper clamp arm, 96...Lower clamp arm,
99,100...Lid hanging member (lid hanging means), 1
02...Sliding member, 107, 108...Release member (release means), 120...Arm housing, 13
4... Disk lifting mechanism, 160... Cam unit, 180... Support, 200-205... Micro switch, 700... Reversing lever (operating means), 701... Contact portion, 702... Bearing, 70
3a...Slope, 705...Coil spring, 710...
...Locking pin (regulating means).

Claims (1)

[Claims] 1. A recording disc playback device that uses a disc case consisting of a disc case body that has an opening at one end and has a storage space inside that can accommodate a disc-shaped recording medium, and a lid that removably engages with the opening. A release means for releasing the engagement state between the disc case inserted into the disc case insertion slot of the playback device main body and the lid, and a latching state for latching the lid and a non-latching state for not latching the lid. a lid latching means that takes the lid latching state; an operating means that moves the lid latching means from the latching state to the non-latching state; a transport means for transporting a recording medium in a direction of taking it in and out of the disk case, and a means for latching the lid latching means only when the disc-shaped recording medium is transferred to be collected into the disk case. and a regulating means for regulating the operating means so as to operate from the state to the non-latched state.