JPS6185665A - Recording disk reproducer - Google Patents

Abstract

PURPOSE:To attain sure pull-out and collection actions of a disk by securing such constitution where a disk case is opened when the case is put into a reproducer main body to hold the disk by a disk holding mechanism and at the same time the disk is pulled out of the case by a cover hook means with the cover kept hooked and then collecting the disk in a non-hook state of the cover. CONSTITUTION:When a disk case 2 is put into a reproducer main body, the opening part of the case 2 is opened by an opening mechanism. Then the case is substantially fixed to the reproducer. This state is detected by a microswitch, and a motor is driven to move forward (direction X1) a disk holding mechanism 90. The mechanism 90 enters the case 2 and a rotary member 101 has contact with a cover 3. Thus a slide member 102 whose restriction is released is moved in the direction Y2. Then clamp arms 95 and 96 hold a disk 6, and cover hook members 99 and 100 hook the cover 3. Then the disk 6 is pulled out together with the cover 3 by the reverse revolutions of the motor. On the contrary the disk 6 is collected when the cover 3 is not hooked.

Description

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

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 such a semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth significantly, 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 proposed a playback device that can automatically take out a 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 and an outer case 50a.
, turntable 130 , and arm housing 120
It is made up of.

The arm housing 120 mounts a reproducing head. A fixed base 80 is fixed to the chassis 40, 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 is further provided with a movable base 91 that is movable in the front and rear directions (X, X2 directions). A movable base 91 is provided with a disk holding mechanism 90 and latching members 99, 100,
These constitute a transfer means for drawing the disc 6 from the case 2 onto the turn chil 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. 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. Ll is the inner diameter of the disk 6, L2 is the diameter of the disk 6, T1 is the thickness of the group guard, and T2 is the thickness of the recording surface. Second
In the figure, a rectangular disk case 1 includes a disk case body 2 (hereinafter referred to as the case), and a lid 3 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. It is made up of. 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 consists of a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protrusions 9, 10, and 11 along the three sides of the flat plate part 8. An engagement hole 13 is formed in the center near the opening 7, into which a convex portion of the lid 3 to be described later engages, and on the left and right sides of the opening 7, engagement holes 16 into which M3 protrusions engage are formed. It is formed.

The end of M3 is provided with a flange portion 18 that closes the opening 7 of the case 2 when the lid 3 is engaged and fixed to the case 2,
In addition, a notch 19 is provided symmetrically to the center line (1) 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 is provided with an inclined portion 26 that engages with the release member M3. 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. Moreover, since M3 engages with case 2 and closes opening 7, disk 6 is housed without falling out of 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 a circular arc with a gap 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 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 placed on the turntable 130.

Reference numeral 132 denotes a clamp, which presses the disc 6 placed on the turntable 130 into contact with the turntable 130. 40 is a chassis to which guides 52 and 53 for guiding the case 2 into the playback device main body 50 are fixed. Guides 52a and 53a are guide grooves.

Reference numeral 60 denotes a case expansion mechanism, which 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. Fixed base 80 is fixed to chassis 40. The engaging 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, and a movable base 91
is formed integrally with. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. Reference numeral 99.100 is a latch member, which is supported by pins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91.
9 and locks M3. A leaf spring 94 is attached to the movable base 91 at a position where it comes into contact with the lid 3.

Reference numerals 107 and 108 designate claw-like release members integrally formed with the movable base 91, which move 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.

The movable base 91 of the disk clamping mechanism 90 has rails 45,
46 and 47 so as to be movable in the front and rear directions (X, X2 directions). 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 is
It never deviates from 6.47. The movable base 91 is fixed to the belt 111 by a connecting piece. belt 111
is hung between gears 112 and 113, and a motor 114 with a speed reducer drives the belt 111 to transport the disk holding mechanism 90. The movable base 91 includes a switch 515 (not shown in FIG. 6, see FIG. 7).
is provided, and the position of the movable base 91 is detected by the switch plate 515 blocking the photoswitches 513 and 514 fixed to the chassis 40.

In FIG. 6(C), reference numeral 508 is a release mechanism that releases the state in which the holding mechanism 90 is holding the disk. The release mechanism 508 is composed of a slope 510, a block 509, and a rotating lever 511.
It is rotatably supported in the E2 direction. Rotating lever 51
1 is a lever provided on the lifting mechanism 134 via a wire 512! -515, and is configured to rotate in conjunction with the operation of the lifting mechanism. 120 is an arm housing, rail 126. The shaft 122 supports the turntable 130 so as to be movable in the left and right directions (Y, Y2 directions). Like the disc holding mechanism 90, the arm housing 120 is also configured to be moved in parallel over the disc 6 placed on the turntable 130 by the motor 24 and the heald (not shown), and to pass the signal of the disc 6. There is.

In FIG. 6(C), 180 is a support that supports the disk 6, and shafts 181. It is supported by a bearing 182 so as to be able to move vertically (in the Ml and M2 directions). The support 180 is provided in two parts, left and right, as shown in the figure, and the support 180 is provided with the disk 6 in the Yl and Y2 directions (see FIG. 6(A)) so as to hold the group guard 33 of the disk 6.
It is configured to be able to hold a larger range than the diameter of the group guard 33. 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 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 lifts and lowers the lift ring 136 (see FIG. 24). The disc 6 is supported above the turntable 130, and the fi! Move up and down from the current state.

160 is a cam unit, the above-mentioned support 180,
Disc lifting 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. Bearing 1
63 for horizontal rotation, and is biased by a spring 172 in the P1 direction. The levers 167, 168 each have a shaft 178. It is rotatably supported by bearings 170 and 171. Each lever 162°167.1
68 are interlocked with 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. 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. Microsinches 202 to 205 and photoswitch 51
3.514 is a switch 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), FIG. 9, and FIG. 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. 92 is 4
The rollers are rotatably supported by the movable base 91 and engaged with the rails 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. Reference numeral 95 denotes an upper clamp arm, which is formed integrally with the movable base 91, and is provided with a claw 95a 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. Reference numerals 99 and 100 denote latching members that engage with the notches 19 of the lid 3 to latching the lid 3.

The latching members 99 and 100 are attached to the bins 105 and 106, respectively.
It is supported so as to be horizontally rotatable relative to the movable base 91. Further, the latching member 99.degree. 100 is provided with driven ends 115, 116, respectively, which are guided by cam grooves 113.degree. 114 provided in the sliding member 102.

The sliding member 102 is approximately plate-shaped, and has cam grooves 113 and 114.
is guided by pins 105 and 109 and moves approximately linearly in the direction of arrow Y1 or Y2. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure.
Also, a protrusion 102b is provided, and a contact portion 102a is provided on the opposite side.
and a spring hook 110a. The protrusion 102b passes through the square hole 91b made in the movable base 91 and connects the rotating member 1.
01 (see FIG. 7(C)). Further, the sliding member 102 is always biased in the direction of arrow Y2 by the spring 110 applied between the spring hook 111b and the spring hook portion 112 of the movable base 91. Furthermore, the sliding member 102 is provided with a wedge-shaped portion 102c, as shown in FIG.
As shown in B), the wedge-shaped portion 102c and the lower clamp arm 96
It is configured such that it can be closed by abutting against the abutting end 96a of the abutting end 96a. The rotating member 101 is horizontally rotatably supported by a movable base 91 by a fulcrum 101a, and is supported by a spring 104 as indicated by the arrow 10.
4a (FIG. 7(A)). 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. The contact portion 101b has a sloped shape as shown in the figure.

1 (57, 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 the lid 3 to release the engagement between the lid 3 and the case 2. 109 is a release member provided at both ends of the movable base 91. It is a contact plate and is provided at a position where it can come into contact with the microswitches 202 to 205. 110' is a connecting piece;
It connects the heald 111 and the disk clamping machine JJ90.

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 M3 is latched and the disk 6 is clamped as shown in FIG. 7(A). In this state, the sliding member 10
2 is the most right side of the figure (direction of arrow Y2) among the three states.
It is located close to. The latching members 99 and 100 are in a position where M3 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 M3 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 attached to the disc 6 as shown in FIG. 7(B).
is in a state where the group guard 33 is sandwiching the. In this state, the claw 95a of the upper clamp arm 95 and the lower clamp arm 9
The contact end 96a of 6 is in a position to contact the group guard 33. In addition, as shown in FIG. 10(B), the contact end 96a contacts the wedge-shaped portion 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 9G is biased in the direction of the arrow 98b in FIG. 7(B) and clamps the group guard 33.

The second state is the "mold holding state". This is shown in Figure 8 (
As shown in A), the lid 3 is latched 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 latched 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.

The third state is a "non-retention state". This state is the 9th
As shown in the figure, the lid 3 is not latched and the disc 6 is not clamped. The sliding member 102 is in the position closest to the left side (in the direction of Yl) in the figure among the three states. The driven ends 115 and 116 of the latching members 99 and 100 are guided by the cam grooves 113 and 114, respectively, and are in an 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 102b of the sliding member 102 are in contact with each other, and the sliding member 102 is moved to the right side (in the figure) by the biasing force of the spring 110.
It is regulated so that it does not slide in the Y2 direction).

In this way, the disk holding mechanism 90 can take three states: "lid/disc holding state jGJ", "mold holding state", and "non-holding state". These three states are all regulated by the position of the sliding member 102 in the sliding direction (Yl, Y2 direction). In other words, by changing the position of the sliding member 102 in the Yl and ¥2 directions, the "M disk holding state" and "
Type-retaining state.”

The disk holding mechanism 90 can be changed into three states including a "non-holding state". However, among the three states above, "
The "mold holding state" can be held when the sliding member 102 is regulated to 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(A)-(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 an engaging member, which is supported by a bearing 63 and a pin 74 fixed to a fixed base 80 so as to be vertically movable. Further, the engagement 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 . A slider 65 is slidably attached to the fixed base 80, as shown in FIG. 11(C). The slider 65 is provided with elongated holes 65a and 65b, and pins 71 and 70 are engaged with each of them, and the arrow Y1 in the figure
．． It is configured to slide linearly in the Y2 direction. Furthermore, the slider 65 is restricted at its center by the abutting portion 63a of the bearing 63, as shown in FIG. 11(C), 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 is rotated in the direction of arrow 2 in the figure by the slider 65 acting on the right side (direction of arrow Y2) in the figure. However, by acting to the left in the figure (in the direction of arrow Y1), it rotates in the direction of arrow V1. Further, a spring 73 is applied between the slider 65 and the fixed base 80 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 abutting end 76 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 this case expanding mechanism 60 expands the case 2 and engages the case 2 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. 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 will be regulated at the positions shown in Figures (B) and (C). The case 2 is inserted into the case expansion mechanism 60 in this state through the insertion opening 51 of the playback device main body 50 and guided by the case guide 75.

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 the same state 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 case 2 contacts the open end of the case 2, the engagement member 62 rotates in the W2 direction in the figure, and the engagement end 62b of the engagement member 62 rotates 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 member 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, the contact end 76 of the slider 65 is moved to the left side (Y
1 direction), the slider 65 moves in the direction of arrow Y1, and when the notch 65c comes to the position of the engaging member 62 as shown in FIG. Rotate in the direction of arrow W1 to engage the engagement hole 1 of the case 2.
3 and the engagement member 62 is released.

As described above, the case expanding mechanism 60 of this proposed example has a means for expanding the case 2 as well as a means for engaging the case 2, and moreover, by moving the slider 65, the case 2 can be easily engaged with the case 2. can be canceled.

In addition, in this proposed example, as shown in FIGS. 11 and 12, a microswitch 200 is placed at a position where it can come into contact with the slider 65.
When the case 2 is inserted into the expansion mechanism 60, the case 2 is engaged, and the slider 65 is operated, it is detected that the case 2 is expanded and engaged by the micro-sinch 200. It is configured so that it can be done. Further, 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 will not easily come off.
It is in a state where it is substantially fixed to the playback device 50.

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 disengaged state.

I will explain in detail about Cam Uniso 1-160.

14 and 16 are operation explanatory diagrams, and FIG. 15 is a timing chart diagram illustrating the movement of the lever. In FIG. 14, cam 161 is horizontally rotatably supported by shaft 176, and heald 175. The power of the cam drive motor 165 is transmitted through the worm 166, and the cam drive motor 165 can rotate 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
It 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)), the support 180 is raised and lowered by rotating the shaft 181. The lever 162 is biased in the P1 direction by a coil spring 163, so the interlocking member 404 provided on the lever 162 is always in the cam groove and biased 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, moves the slider 65 in the Y1 direction against the spring 73, and returns the slider 65 to the state shown in FIG. 14(A).

The cam f4400 will be explained using FIG. 16(A). The cam groove 400 has cam paths 405a and 405b.

It is composed of 405c and 405d. Cam groove diameter β
1 is greater than β2. Lever 167.168
The cam grooves 400 that drive the cam grooves 400 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. 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
6 moves the engagement pin 169, resulting in the state shown in FIG. The slider 65 is stopped by a stopper 4.10, as shown in FIG. 14(B), and will not move beyond that point. This state is the state shown in FIG. 16(B). The engagement pin 169 is connected to the contact member 7 by the coil spring 163.
6, and the interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. 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 16
1 is rotated in the A2 direction shown in FIG. 14(B), and the lever 167 is rotated according to the timing chart of FIG.
．． 168 is pulled in the B2 direction shown in FIG.
3 states). This state is the state shown in FIG. 16(C).

At this time, since the cam groove diameter 12 is smaller than 11, the lever 16
2 moves in the P2 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 the cam 161 rotates further than in FIG. 16(C), the interlocking member 404 is located at the branch point of the cam paths 405a and 405c, as shown in FIG. 16(D), but the lever 162 is moved by the spring 163. The contact member 76 is urged to rotate in the P1 direction, and in this state, the contact member 76 is separated from the engagement pin 169, as shown in FIG.
As shown in D), the engagement pin 169 is in a state where it can further rotate in the P1 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 to the position shown in FIG.
In one direction, the lever 168 also moves in the B1 direction. The lever 162 moves the slider 6 by moving in the P1 direction.
5 to the state shown in FIG. 14(A), and the engaging member 6
2 releases the state in which case 2 is engaged (L, state).

At the same time, the lever 168 moves in the B1 direction shown in FIG. 14, and the support 180 descends (state 14).

When the cam 161 further rotates, the lever 167 moves to the 14th position.
It moves in the direction 81 in the figure, lowers the elevating mechanism 134, and places the disc 6 on the turntable 130 (state 15).

When the cam 161 further rotates, it enters the t6 state, its position is detected by a low-frith inch (not shown), and the energization of the motor 165 is cut off, thereby stopping the cam 161 (16 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 FIGS. 9' and 16(B). The micro-sinch 200 detects this state, and the motor 165 is energized so that the cam 161 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 direction of FIG.
Support above 30. The lever 16B is pulled, and the support 180 rises to support the disk 6 (shape 19B). When the cam 161 further rotates, the lever 167 moves in the B1 direction, lowering the elevating mechanism 134 (t1
0 state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During that operation, cam 1
61 rotates, the lever 168 moves in the B1 direction, and the support 180 descends (state t11). Furthermore, cam 16
1 rotates, the interlocking member 404 faces the branching member 403b and then enters the cam path 405b, as described above, and enters the cam path 405b.
6 (A), the lever 162 is moved to the slider 65.
, the almost fixed state of case 2 is released,
The state will be as shown in FIG. 8 and FIG. 16(A).

To briefly summarize each state in Fig. 15, to is the standby/f state, tl is the case inserted state, t2 is the lift upper limit position, t3 is the support raised position, t3' is the start of slider movement, and t4 is the slider rotation (case t5 is the lift lowered position, t6 is the standby state, t7 is the case inserted state, t8 is the lift upper limit position, t9 is the support raised position, tIG is the lift lowered position, "11 is the support lowered position, tl2 is the slider 1 Kotuku (case withdrawal) is shown respectively.

Next, the release mechanism will be explained in detail using FIGS. 25 and 26. 25 and 26 show the operation of the releasing mechanism 508 to release the state in which the holding mechanism 90 holds the disk 6 when the disk 6 is used. Figure 25 (
A) is the state shown in FIG. 26(B). Reference numeral 103 denotes a roller provided on the sliding member 102 mentioned earlier in the description of the clamping mechanism. Figure 26 (B) shows the “lid/disk holding state”
It is. Next, when the lever 511 is pulled, the release mechanism is E1
It rotates in the direction shown in FIG. 26(C). If the clamping mechanism 90 moves in the X2 direction in this state, the roller 103 climbs the slope 510 and reaches the state shown in FIG. 26(D). This state is the "differential holding state" mentioned above. This state is shown in FIG. 25, and the state in which the disk 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. 1st
Figures 7 to 22, and Figure 23 (A).

B) and FIGS. 24(A) to 24(C) are all schematic explanatory diagrams showing how the respective parts of the reproducing apparatus 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 disc 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 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 1:3 is engaged by the engagement member 62, and the reproducing device It will be in a state where it is substantially fixed to the main body 50.

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the motor 114 operates, and the disk holding mechanism 90 is moved forward (in the figure) by driving the belt ll■.
X, direction).

Then, as shown in FIG.
contact, the restriction on the sliding member 102 is released, the sliding member 102 slides to the right (in the direction of arrow X2), 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 contacts the micro-sinch 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 X2 direction) in the figure.

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 since the reversing lever 190 is rotatable in the direction of arrow R2 in FIG. There is no problem in transferring the disk holding mechanism 90 just by doing so.

Next, FIG. 19 shows the state during the transfer.

As shown in the figure, the M3 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 support 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.

When the disc clamping mechanism 90 is further moved rearward (X2 direction), the slot plate 515 of the disc clamping mechanism 90
is at a position where it blocks the photoswitch 514. From this position, the speed at which the disk holding mechanism 90 is transferred is reduced.
It is stopped accurately at the position of the photo switch 513. This position is inside the turntable 130 as shown in FIG.
-4 center boss 131 and center hole 3 of disk 6
4 will come to a roughly corresponding position. Even in this state,
The support 180 is configured as shown to hold the group guard 33 of the disk 6.

Next, the center YaW ring 133 is attached to the cam unit 16.
0 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 action Cζ of the cam unit 160. Next, when the disc clamping mechanism 90 is further moved backward (X2 direction), the sliding member 102 of the disc clamping mechanism 90
roller 103 and slope 51 of release mechanism 508 provided in
0 acts, the sliding member 102 moves to the left (Y direction), and the above-mentioned "differential holding state" is achieved. In other words, disk 6
The disk clamping mechanism 90 is in a state where it is not clamping,
This 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. 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 M3 is held from below by the lid holding members 41 and 42 as shown in FIG. 21, it does not hang down and come into contact with, for example, the arm housing 120 while traveling.

When the playback is finished, the user selects the empty case 2 mentioned above.
When inserted into the IG reproduction device, the engaging portion 62 of the case expansion mechanism 60 engages with the case 2, and the case 2 becomes substantially fixed to the reproduction device main body 50. The micro-sinch 200 detects this state in the same manner as described above, and the cam unit 160 operates this time to raise the mounting ring 133, resulting in the state shown in FIG. 24(C).

Next, the motor 114 drives the belt 111, and the disk holding mechanism 90 is now moved forward (in the direction of the arrow x1), shifting to the state shown in FIG. 24(B). Then, the support 180 is raised by the operation of the cam unit 160,
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 forward (X) while holding the lid 3 and the disc 6.

motor 114. It is transported by belt 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 to R1, the roller 103 climbs the slope 190a and the sliding member 102 moves to the left (Y).

direction) and enters the aforementioned "non-holding state", and the M3 is pushed into the case 2 by the biasing force of the leaf spring 94 as shown in FIG.

Then, the motor 114 is reversely rotated again, and the disk holding mechanism 90 is moved rearward (x2 direction) and returned 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 M3 engaged with the case 2.

In this way, the user can automatically take out and collect 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 collecting the disk, the roller 103 of the disk holding mechanism 90 climbs the slope of the reversing lever 190 and becomes the aforementioned "non-holding state" at the position of the micro-sinch 202, and the force of the leaf spring 94 causes the lid to be closed. 3 was pushed into the case 2, but since the "non-retained state" was determined by the position of the disc holding mechanism 90, due to variations in the position of the microswitch 202, the lid 3 and the disc were pushed into the case 2 sufficiently. At the position where you pushed in 6,
It was difficult to bring the lid 3 into the non-retained state, and accidents occurred in which the lid 3 was not completely pushed into the case 2. This has prevented autoloading regeneration devices from becoming marketable.

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 disc playback device of the present invention comprises: a disc case main body having an opening at one end and having a storage space therein capable of storing a disc-shaped recording medium; and a lid that removably engages with the opening. A recording disc playback device using a disc case comprising: a latching state in which the lid engaged with the disc case inserted into the disc case insertion slot of the main body of the playback device is latched; 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 disc-shaped recording medium in a direction in which the disc-shaped recording medium is taken in and out of the disc case; 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 28 (A) to (D).
). The configuration and operation of the playback device main body 50 are the same as those in the proposed example. In FIG. 27, 700 is a reversing lever, which is rotatably supported by a bearing 702. Reference numeral 701 is a contact portion provided on the reversing lever 700, which connects the locking pin 710 provided on the cam 161
As shown in FIG. 7(B), they are in opposing positions. Second
8, 705 is a tension coil spring that biases the reversing lever 700 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. 28(A). Further, the locking pin 710 is provided at one location on the cam 161, and the cam 161 rotates, as shown in FIG.
C).

CD), when it comes to the position facing the contact part 701,
The reversing lever 700 can be brought into a state where it cannot rotate in the R2 direction from the state shown in FIGS. 28(C) and 28(D).

The position of the cam 161 in FIGS. 28(C) and (D) is as follows:
This is the state of tll 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, and the elevating mechanism 134 and the support 180 are lowered. 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 moving the upper hanging members 99, 100, which serve as lid latching means, from a latching state to a non-latching state. The M latching members 99 and 100 are interlocked with the sliding member 102 as described above, but the roller 103 provided on the sliding member 102 climbs the slope of the reversing lever 700 as the movable base 91 moves. , latching member 99. Cause too to move to the unlatched state. The locking pin 710 serves as a regulating means for regulating the reversing lever 700, which is an operating means. Furthermore, the claw-like release members 107 and 108 provided on the movable base 91 in FIG. 6(A) constitute a release means for releasing the engagement between the case 2 and the lid 3. moreover,
The movable base 91 and its driving device constitute means for transporting clamp arms 95 and 96, which serve as clamping means.

Operation Next, we will explain how this embodiment operates within a playback device. 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 "M disk holding state". This state is the state shown in FIG. 28(B). 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 this time, the reversing lever 700 is pulled by the coil spring 705 and returns to its original position. Thereafter, the disc holding mechanism 90 is moved in the direction of pulling out the disc 6 and the lid 3 with the lid/disk holding member 1iLl, and the roller 103 comes into contact with the slope 703a of the reversing lever 700, but the reversing lever 700 is rotatable. Therefore, there is no problem in transferring the disk holding mechanism 90, and the disk 6 is transferred and placed on the turntable 130, and becomes ready for playback.

After the reproduction is completed, when the empty case 2 is inserted into the reproduction apparatus main body 50, the transfer of the disc 6 and the lid 3 is started as in the proposed example. The disk holding mechanism 90 is transferred, and its roller 103 comes to the position shown in FIG. 28(C). In this state, the cam 161 is stopped at the tll state in the tamming 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. If the roller 103 is transferred in this state, it will be in the state shown in FIG. In addition to the force of the spring 94 pushing the lid 3 into the case 2, the pushing force of the disk holding mechanism 90 is added, so that the M3 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 storing the disc into the main body of the playback device, the disc is automatically taken out from the case and can be played. . In addition, after playback is complete, simply inserting the empty case slightly into the main body of the playback device will automatically transfer the disc into the case, store the disc in the case, and securely engage the lid with the case. This has the effect of preventing accidents during disk recovery and ensuring reliable recovery operations.

[Brief explanation of drawings]

11a (A) and (B) are respectively a plan view and a sectional view of a disk that can be used in an embodiment of the present invention, and FIGS. A perspective view of the assembled state; FIGS. 4A to 4C are a front view, a plan view, and a side view of the lid of the disc case; FIG. 5 is a proposed example of a recording disc playback device that is the basis of this invention. External perspective view of
FIG. 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.
) are the same (a perspective view of the cam unit and the elevating mechanism, FIGS. 7(A) to 7(C) are a plan view, sectional view, and front view of the disk holding mechanism in the lid/disk holding state, respectively). Figure 8 (A). (B) is a plan view and cross-sectional view of the disk holding mechanism in the lid holding state, respectively, and Figure 9 (A) is the same plane view of the disk holding mechanism in the non-holding state. Figures and sectional views, Figure 10 (A). Figure 11 (B) is an operational explanatory diagram showing the relationship between the sliding part of the disk holding mechanism and the clamp arm, Figures 11 (A) to (
C) are a plan view, a cross-sectional view, and a front view of the case expansion mechanism in a state where the case is not inserted, and Fig. 12 (A).
-(C) are respectively plan views of the case expansion mechanism in the case insertion state. A sectional view and a front view, FIGS. 13(A) to 13(C) are also explanatory diagrams of the operation of the case expansion mechanism, FIG. 14(A),
(B) is also an explanatory diagram of the operation of the cam unit, the first
Figure 5 is the time chart of the same cam unit, Figure 16 (A
) ~ (D) are the same Cam Uni. Figures 17 to 22 are explanatory diagrams of the operation of the 11th generation device as seen from above, and Figure 23 (
A) and (B) are operation explanatory diagrams showing the relationship between the support and the disc, Figures 24 (A) to (C) are operation explanatory diagrams showing the longitudinal side of the playback device, and Figure 25 is an explanatory diagram showing the relationship between the support and the disc. FIG. 26 is a side view for explaining the operation of the mechanism, FIG. 26 is a plan view for explaining the release mechanism, FIG. 27 is a diagram for explaining the operation of the reversing lever which is a main part of an embodiment of the present invention, and FIG. 28 is for explaining the operation of the reversing lever. FIG. 1... Disc case, 2... Case body, 3...
- Lid, 6... Disc (recording medium), 13... Engagement hole (engaging part), 40... Chassis, 50... Playback device main body, 51... Case insertion slot, 60... ...Case expansion mechanism, 62...Engagement member (case stop means), 62
a... Contact end, 62b... Engagement end, 65... Slider, 80... Fixed base, 90... Disc clamping mechanism, 91... Movable base, 95... Upper clamp arm, 96...Lower clamp arm, 99.100... Latching member (lid hooking means), 102... Sliding member, 1
07.108...Release member (release means), 120...
・Arm housing, 134...disc lifting mechanism,
160...Cam Uniso h, 180...Support, 2
00-205... Micro switch, 700... Reversing lever (vJ production, 701... Contact part, 702
...bearing, 703a...slope, 705...coil spring, 710...locking pin (regulating means) □ h Fig. 13 DJcL Fig. 14 (ζ 0 RO, J
. Figure 27 Go 'J28i''710

Claims (1)

[Claims] a disc case body having an opening at one end and a storage space inside that can store a disc-shaped recording medium;
A recording disc playback device using a disc case comprising a lid removably engaged with the opening, wherein the disc case inserted into the disc case insertion slot of the playback device main body and the lid are disengaged from each other. a lid latching means that changes the lid from the latching state to the non-latching state; a moving means for moving the lid latching means to move the lid and the disc-shaped recording medium in a direction in which the disc-shaped recording medium is taken in and out of the disk case; A recording disc reproducing device comprising: a regulating means for regulating the operating means so that the lid latching means is operated from the latching state to the non-latching state only when the medium is transferred to be collected in the disc case. .