JPS6228969A - Recording disc reproducing device - Google Patents

Abstract

PURPOSE:To perform the taking in and out of a disc without damaging a recording surface by providing a control means which controls so that an energizing means that strengthens an unfolding means to be in the unfolding state of a case when a standwitching and carrying means carries the disc. CONSTITUTION:A device is equipped with a disc case consisting of a case main body having a space where the disc is to be contained inside and an aperture part for the taking out of the disc on one end and a cover with engages in such a way that the cover can freely be attached to and detached from the aperture part, and an unfolding means 60 that makes a folding state where the aperture part of the disc case inserted to an inserting opening 51 guiding to a reproducing device main body 50 having a reproducing means is not unfolded, and a perfect shunting state where the disc is not prevented from the taking in and out of the disc case. And the device is equipped with a sandwitching and carrying means 90 that carries the disc while the disc is sandwitched within the disc case and is taken in and out to the reproducing device 50, and the energizing means by a slider 65, etc. that energizes the unfolding means 60 to a perfect shunt state when the disc is carried by the carrying means 90.

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 disk reproducing apparatus that automatically draws a disc into a reproducing apparatus and performs reproduction.

Conventional technology Traditionally, in playback devices for high-density recording discs, such as video discs, it has been necessary to manually move the disc in a cylindrical disk case to the back of the playback device, as disclosed in Japanese Patent Application Laid-open No. 111158/1983. There are many playback devices that employ a so-called semi-automatic loading method, in which a player is inserted and an empty case is manually removed. However, with this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth a lot, and it does not work perfectly even under the harsh conditions of use by the user. There have been various problems such as difficulty in constructing a loading mechanism.

Therefore, we attempted to create a playback device that would automatically take the disc out of the case at 3/-7, allowing the user to play the disc by simply inserting the case slightly. As for its configuration, we considered one that includes an expansion mechanism for expanding the case, a clamping mechanism for clamping the disc, and a transport means for transporting the clamping mechanism and the disc.

A conventional example will be described below with reference to the drawings.

FIGS. 26(A) and 26(B) if show a conventional recording disk reproducing apparatus. FIGS. 26 and 27 are explanatory diagrams of the operation of the conventional expanding means.

In FIGS. 25 to 27, 60 is a case expansion mechanism;
90 is a disc holding mechanism, 130 is a turntable, 1
60 is a cam unit. The disc holding mechanism 90 is expanded further than the case expanded by the case expansion mechanism 60.
Further, the disc 76 is configured to be transferred from the case in the direction of ejection and insertion.

The operation will be explained below.

When the case 2 is inserted into the case expansion mechanism 60 without being separated,
The slider'-65 is pulled by the spring 72, and the expansion portion 66 spreads the case 2, and then the disc holding mechanism grips and pulls out the disc 6.

Problems to be Solved by the Invention However, when a case expansion mechanism with such a configuration is used, the case is expanded using a spring or the like, so the case size may fluctuate and the case expansion operation may be caused by user's erroneous operation. There is a possibility that defects may occur.

If you pull out the disc in this state, there is a risk of damaging the recording surface of the disc.

A technical means of the present invention for solving the problem is to cause the case expansion mechanism to fully expand the case in response to the case expansion mechanism's operation to expand the case. This provides an old-fashioned means of biasing the state.

Effect The effect of this technical means - be as follows. In other words, the case expansion mechanism expands the case at one end using a spring force, and then forces the case into the expanded state using an old-fashioned means, so that the case can be fully expanded. .

Page 5 As a result, an autoloading player that can fully expand the case even if the size of the case varies or the user makes a mistake, and can transfer the disc reliably without damaging the recording surface of the disc. can be provided.

Embodiments Examples of the present invention are shown in FIGS. 1, 2, and 8 to 24. Figures 3 to 6 refer to this embodiment, respectively.
This figure shows a disc that can be used in a recording disc playback device and its configuration.

In FIG. 3, the disk 6 has a center hole 34 and is provided with a bank-like outer group guard 33 and an inner group guard 32. In FIG. 4, a rectangular disk case 1 has a disk case main body 2 (hereinafter referred to as the case) and a lid that is removably connected to an opening 7 provided on the front side of the case 2 in the insertion direction x1 into the device. 3.

The case 2 and the lid 3 are made of styrene resin, for example. The inside of the case 2 is a flat disk storage space 5 over its entire width and length, and a disk 6 is stored in this space 6. This space 6 has the opening 7 on the side in the insertion direction x1, and the remaining side is closed. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and 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 protrusion of the lid 3, which will be described later, engages, and on the left and right sides of the opening 7, engagement holes 16, into which projections of the lid 3 engage, are formed. is formed.

The end of the lid 3 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.
Also, a notch 19 is provided symmetrically to the center line (O) through which an expanding member, which will be described later, can enter.At the end of the lid 3, it is further engaged with the aforementioned engagement hole 16 to attach the lid 3 to the case. A leaf spring 25 is provided which has a protrusion 24 at its tip that is fixed to the slanted part 2 that engages with the release member of the lid 3.
6 is provided. FIG. 6 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. In addition, since the lid 3 engages with the case 2 to bring the open part 7 into the closed state, the disc 6 often falls out of the case 2 and is retracted.

FIG. 6 is a detailed view of the lid 3, which faces the disc 6.
The shape of l is, for example, formed into an elliptical arc, with the gaps at both ends being larger than the gap a at the center. This 11 is designed to operate stably even if the lid 3 and the disk 6 are slightly deviated in two directions from their four-eye pairing positions during a reproducing operation to be described later.

FIG. 1 shows the recording disk reproducing apparatus of this embodiment.

FIG. 2 is an external view of the recording disc playback device, and as shown in the figure, a case insert 1''] 51 is provided in the exterior case 50a of the playback device main body 60.
The figure shows the basic configuration of a recording disk reproducing apparatus. In FIG. 1 (5), 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. 60 is a case expansion mechanism, which opens the chassis 40 near the case insertion opening 51.
Fixed on top.

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, and the support part 4' fixed to the fixed base 80;
Expand case 2 with AC3. Fixed base 80 is fixed to chassis 40. The retaining part 62 is attached to the fixed base 80 with the shaft 4. It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13.

9o is a disk holding mechanism. 96 is an upper clamp arm formed integrally with the movable base 91. 96
A lower clamp arm is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. 9
Reference numerals 9 and 100 denote latching members, which are supported by pins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91, and are engaged with the notches 199/, -7 of the lid 3 to lock the lid 3. Stop hanging. 94 is a leaf spring;
It is attached to a movable base 91 at a position where it contacts the lid 3.

Reference numerals 107 and 108 designate claw-like release members integrally formed with the movable base 91, which function to engage with the inclination 126 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 a rail 45,
46 and 47 so as to be movable in the front and rear directions (xl, x2 directions). The rail 45 has V grooves on both sides as shown in FIG. 1(B), and a roller 92 rotatably provided on a movable base 91 is fitted 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 mounted between gears 112 and 113, and a motor 114 with a speed reducer drives the belt 111 to transport the disk holding mechanism 90. 120 is an arm housing, rail 126. Sha10,-,.

The turntable 130 is supported by a foot 122 so as to be movable in the left and right directions (Yl, Y2 directions). Similarly to the disk holding mechanism 90, the arm housing 120 is also
A motor 124 and a belt (not shown) are used to transport the disc 6 in parallel over a turntable 130, and to pick up signals from the disc 6.

In FIG. 1 (q), 180 is a support that supports the disk 6, and is supported by a shaft 181 and a bearing 182 so as to be able to move up and down (in the Ml and M2 directions). It is set up in two parts,
To be able to hold the group guard 33 of the disc 6,
In the Yl and Y2 directions (see FIG. 1(A)), it is configured to be able to hold an area larger than the diameter of the group guard 33 of the disk 6. In addition, the support 180 is located below the turntable 130, and the support 180 is located below the turntable 130.
It is configured so that it can protrude above 0 and support the disk 6 held by the disk holding mechanism 9o.

11/, -1・134 is a disk elevating mechanism, which is constructed as shown in the figure. 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 disc 6 is placed on the turntable 1 by the mounting ring 133.
30 and the turntable 1
It is raised and lowered between the state where it is placed on 30 and the state where it is placed.

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 166 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 Pl direction. The levers 167 and 168 are respectively shirt) 178. It is rotatably supported by a bearing 171. Each lever 162.167.
168 are respectively linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 16). 19
0 is a reversing lever for switching the operation of the disk holding mechanism 9o. 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 and a driving motor. In FIG. 1(5), 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. Micro switch 202-20
6 is a switch for detecting the position of the disk holding mechanism 90.

The disc holding mechanism 9o will be explained in detail.

7(A)-(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. A roller 92 is rotatably supported by a movable base 91 and engaged with the rail 45 as shown in FIG. 94 is a plate ridge, which is attached at a position where it comes into contact with the lid 3.

An upper clamp arm 96 is formed integrally with the movable base 91, and is provided with a claw 95a as shown in FIG. 7 (03). 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 locking members that engage with the notches 19 of the lid 3 to lock and lock the lid 3. Latching member 99
, 100 are supported by pins 106, 106, respectively, so as to be horizontally rotatable relative to the movable base 91.

In addition, the latching members 99 and 100 have driven ends 11 that are guided by cam grooves 113 and 114 provided in the sliding member 102.
5,116 are provided respectively.

The sliding member 102 is approximately plate-shaped, and has cam grooves 113° and 114
is guided by pins 106 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, and is provided with a protrusion 102b, and has an abutting portion 102a and a splash 110a on the opposite side. The protrusion 102b is configured so that it can come into contact with the contact portion 101b (see FIG. 7 (q)) of the rotating member 101 through a square hole 91b drilled in the movable base 91. The sliding member 102 is always (
is biased in the direction of arrow Y2. Damn it, sliding member 1
02 is provided with a wedge-shaped portion 102c, and the first
As shown in FIGS. 0GA) and (B), the wedge-shaped portion 102c is configured so as to be able to come into contact with the contact end 96a of the lower clamp arm 96. The rotating member 101 is horizontally rotatably supported on the movable base 91 by a fulcrum 101a, and is biased by a spring 104 to rotate in the direction of an arrow 104a (FIG. 7-4). 1, the rotating member 101 has a contact end 1 that can contact the lid 3 in addition to the contact portion 101b as described above.
01c is formed. The contact portion 101b has a shape with one extra surface as shown in the figure.

16. Reference numerals 107 and 108 indicate release parts provided at both ends of the movable base 91, which engage with the inclined part 26 of the protrusion 24 of the lid 3 to release the lid 3.
This is to release the engagement between the case 2 and the case 2. Reference numeral 109 denotes a contact plate, which is provided at a position where it can come into contact with the microswitches 202-206. A connecting piece 110' connects the belt 111 and the disk holding mechanism 90.

The operation of the disc holding mechanism 9o will be explained. The disk holding mechanism can take the following three states.

The first state d is "lid disc holding state".

This is a state in which the lid 3 is closed and the disc 6 is clamped as shown in FIG. 7(A). In this state, the sliding part
2 is located closest to the right in the figure (in the direction of arrow Y2) among the three states. The locking member 99.100 is in the cam groove 1
The driven ends 116 and 116 are guided by the driven ends 13 and 114, respectively, so that the lid 3 is in a restricted position as shown in the figure. The leaf spring 94 is in contact with the lid 3 as shown in the figure, biasing the lid 3 forward (in the direction of arrow X1). The rotating member 101 is still in contact with the contact ring 101c.

The lower clamp arm 96 is attached to the disc 6 as shown in FIG. 7(B).
The group guard 33 is in a state of being held in place.

In this state, the claw 95a of the upper clamp arm 95 and the contact end 96a of the lower clamp arm 96 are in a position to contact the group guard 33. The abutting end 9 as shown in Figure 10)
6a comes into contact with the wedge-shaped portion 102C, and the sliding member 102 moves to the right side in the figure (in the direction of arrow Y1) due to the force of the spring 110.
As a result, the lower clamp arm 96 is urged in the direction of the arrow 98b in FIG.

The second state is a "differential hold state". This is shown in Figure 8 (
As shown in 5), the lid 3 is not opened and the disc 6 is not clamped. In this state, the sliding member 102 is in an intermediate position among the three states. The latch members 99, 100, the leaf spring 94, and the rotating member 101 are all in the same state as the "lid/disc holding state", and the lid 3 is not hooked as shown in FIG. . However, in this state, the sliding member 102 changes from the "lid/disc holding state" to the left side 17 in the figure.
,,,,.

(Yl direction), the wedge-shaped portion 102C and the contact end 96a are no longer in contact with each other, as shown in FIG. 10(B). Therefore, the lower clamp arm 96 is opened in the direction of an arrow 98a as shown in FIG.

The third state is a "non-retention state". This state is the 9th
As shown in the figure, the lid 3 is not hooked 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).

18, 7 As described above, the disc holding mechanism 90 can take three states: "lid/disk holding state", "differential holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Yl, Y2 direction) of 02. By changing the position of the sliding member 102 in the Yl and Y2 directions, the lid/disc holding state and the differential holding state can be achieved.

The disk holding mechanism 9° can be changed into three states including a "non-holding state". However, among the three states above,
The differential holding state is one that 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.

Figure 1 (5) to (Q, Figure 12 (8) to (q, 13)
Figures A to (q) are explanatory diagrams of the structure and operation of the case expansion mechanism 60. 8o is a fixed base of the case expansion mechanism, which is fixed to the chassis 4o of the playback device, and is connected to the insertion slot as described above. 51. The support part 61 is fixed to a fixed base 80. 62 is a retaining member, which is supported by bearings 63 and 19 fixed to the fixed base 8o, and a pin 74 so as to be freely movable. ing.

1, the joint part A'62 is shown in Figure 11 (B) by the gene 72.
) is biased in the direction of arrow W. The expansion member 66 is provided at a position corresponding to the support part A'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 arm 64 is attached to the expanded part A66.
and an abutting end 68 are formed. 65 is a slider, and as shown in FIG. 11 (q), it is slidably attached to the fixed base 8Q. The slider 65 has an elongated hole 66a.

e5b are provided, and pins 71 and 70 are engaged with each of them, so that the arrow Y1. It is configured to slide linearly in the Y2 direction. The contact sound of the bearing 63 1t63a causes the slider 66 to be restrained at its center as shown in FIG. Two blind engaging portions 69 are provided, and with this configuration, the expanding member 66 is rotated in the direction of arrow v2 in the figure by the slider 65 working to the right in the figure (in the direction of arrow Y2). Left side of the diagram (arrow Y
1 direction), it will rotate in the direction of arrow ■1. As shown in the figure, a spring 73 is applied between the slider 65 and the fixed base 80, and it always urges the sliders 66 in the direction of the giant arrow Y2 at 101 on the right in the figure. .The contact end 76 of the slider 66
A notch 65c is provided. A case guide 76 serves to guide the case 2, and is fixed to a fixed base 80.

The slider 65 is provided with contact walls 6a, 76b, and the engagement pin 169 contacts the contact walls 76a, 7eb to move the slider 66 in the Yl and Y2 directions.

The configuration of the case expansion mechanism 60 is as follows-1-. When the case 2 is not inserted into the playback device, the case expansion mechanism 60 is in the state shown in FIGS. 11(8) to (q). The slider 66 is regulated in the state shown in the figure 21, - against the biasing force of the spring 73. Therefore, the expansion member 66 is in the state shown in FIG. 11(B).

(It is regulated at the position shown in q.

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 5o and guided by the case guide 76.

Figures 13 (4) to (q) show the process of inserting the case 2 into the case expansion mechanism 60. Figure 13 (A) shows the case expansion in the same state as Figures 11 (A) to (q). This figure shows the opening mechanism 60.The case 2 is guided by the case guide 75 in the direction of the arrow X2 as shown in the figure in the case expanding mechanism 60 in this state.
When the case 2 is guided and inserted, the vicinity of the opening of the case 2 comes into contact with the size expansion member 66, and the case 2 is inserted as shown in FIG. 13(B).
It is expanded as follows. 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.
The engaging end 62b of the engaging member 62 engages with the engaging hole 13 of the case 2 as shown in FIG.
The slider 65 is not connected to the spring 22. The biasing force of 73 causes the right side (Y
(2 directions). This state is shown in FIG. 13 (q). The micro sinch 200 detects this state and the cam 161 rotates in the A2 direction shown in FIG. Contact end 76
b, and mechanically urges the slider 65 to the position q shown in FIG.

In this state, the expanding member 66 is in a state that does not interfere with the removal of the disk 6 from the case 2, as shown in FIG. 13p). Next, the abutting end 76 of the slider 66
If a is moved in the Y1 direction in FIG. 12 by the engagement 169, the slider 66 moves in the direction of the arrow Y1, and when the notch 65c comes to the position of the engaging member 62 as in the state shown in FIG.
The engagement member 62 is rotated in the direction of arrow W1 by the biasing force of the barb 72, and the engagement between the engagement hole 13 of the case 2 and the engagement member 62 is released.

As described above, the case expanding mechanism 6° of this embodiment has means for expanding the case 2 as well as means for engaging the case 2, and can be easily opened by moving the slider 65 23, -. The engagement with the case 2 can be released.

Additionally, in this embodiment, the microswitch 200 is provided at a position where it can come into contact with the slider 66, as shown in FIGS. 11 and 12, so that the case 2 is inserted into the expansion mechanism 60 and the case is 2 is engaged and the slider 65 is operated, the microswitch 200 can detect that the case 2 is expanded and engaged. Furthermore, when the case 2 is in the state where the engagement part Io 62 is engaged 1 to 1, the movement of the engagement part fA62 is not restricted by the slider 65 as described above, so the case 2 does not come off easily. It is in a state where it is substantially fixed to the playback device 5o.

Unfortunately, the microswitch 200 detects whether or not the case 2 is engaged with the engagement member 62, but the lamp 60o 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 so that it remains lit while the engaging member 62 is in the engaged state. Note that a buzzer may be used as this notification means. The buzzer is set to sound when the engaged state changes to the disengaged state.

The cam unit l-160 will be explained in detail.

14 and 16 are configuration diagrams, and FIG. 16 is a timing chart explaining the movement of the lever. In FIG. 14, the cam 161 is transmitted to the cam drive motor 165 through water 166 by a shaft 176, and is rotatable in both forward and reverse directions. The lever 162 is rotatably supported on a shaft 179, and the levers 167 and 168 are rotatably supported on a shaft 178, and an interlocking member (not shown) that engages with the cam groove 400 of the cam 161 is provided. When 161 rotates, the cam groove 40oyc is interlocked and operates accordingly.

After the lever 16 is completed, the lifting mechanism 13 is connected via the connecting member 173.
4, and operates the elevating mechanism 134. The lever 168 connects the coupling member 1 fixed to the shaft 71181 via the coupling members 25 and 174.
84 (not shown in FIG. 14, see FIG. 16), and by rotating the shirt 181, the port 180 is raised and lowered. The lever 162 is
It is biased in the Pl direction by a coil spring 163,
Therefore, the interlocking member 404 provided on the lever 162 is always in the cam groove and is biased in the Pl 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 66 described above. The lever 162 is rotated by the cam 161, moves the slider 65 in the Yl direction against the spring 3, and returns the slider 66 to the state shown in FIG. 14(A).

The cam groove 400 will be explained using FIG. 16(A). Cam groove 400b, cam paths 405a, 405b
.

It is composed of 405c and 405d. Cam groove diameter t1
is more dog than t2. The cam grooves 400 for driving the levers 167 and 168 are provided so as to operate according to the timing chart shown in FIG. 10, respectively.

Next, the operation of the cam unit 160 will be explained with reference to FIGS. 8 and 16, focusing on the operations of the cam 161 and the lever 162. FIG. 14 shows a state in which the case 2 is not inserted into the playback device, and the corresponding cam 161 and interlocking member 404 are in the state shown in FIG. 16(A). When the case 2 is inserted, the slider 65 moves and the abutment member 76a moves the engagement pin 169, thereby causing the first
The state will be as shown in Figure 4B. The engagement pin 169 is connected to the coil spring 16
3, the interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is 1 in Figure 16.
1 state (hereinafter, the state will be indicated as tx in the timing chart of FIG. 16).

The microswitch 200 detects this state, and the cam 16
1 is rotated, resulting in the state shown in FIG. 14 (CI) and FIG. 16 (q. In this state, the interlocking member 404
It is urged by an urging wall 600 provided at 00. As a result, the retaining pin 169 biases the abutting end 76t of the slider 65, so that the expanding member 66 reliably expands the opening 7 of the case 2 (see Fig. 13). )). A rotary switch (not shown) detects the state of the disc 6, and the disc holding mechanism 90 starts to grip the disc 6 and pull it out from the case 2, the motor 165 is energized, and the cam 161 moves as shown in FIG.
), the levers 167 and 168 are pulled in the B2 direction shown in FIG. 14(B), and the support 180 and the lifting mechanism 134 rise, according to the timing chart shown in FIG. The disk 6 is supported above the turntable 130 (states t2 and t3).

This state is the state shown in FIG. 16 (q).At this time, since the cam groove diameter t2 is smaller than tl, the lever ~162 moves in the B2 direction.The slider 66 is stopped by the stopper 410, so it moves. Without a doubt, lever 162
only move. When the cam 6 further rotates, the state shown in FIG. 16 p) is achieved. Fig. 16 (cam 161 further from q)
When the lever 162 rotates, the interlocking part 404 is located at the branch point between the cam paths 405a and 405c, as shown in FIG. , and in this state, the contact portion A]7
6 is apart from the engagement pin 169, and as shown in FIG.
It is in a state where it can move. Therefore, the interlocking member 404 enters the coil spring 163 on the inner wall surface of the cam path 406a. When the cam 161 moves further, the lever 162 moves in the Pl direction shown in FIG. 14, and the lever 168 moves in the B1 direction. By moving the lever 162 in the Pl direction, the slider 66 is moved to the state shown in FIG.
The state in which the retaining member 62 engages the case 2 is released (t
4 states).

At the same time, lever 16875i B1 shown in FIG.
direction, and the support 18o descends (t4 state)
. When the cam 161 moves further, the lever 167 moves to the second position.
Move in direction B1 in the figure, lower the elevating mechanism 134, and place the disk 6 on the turn chill pulls 291, -130 (state 16). When the cam 161 further rotates, it becomes the 16th state, and the position is detected by a rotary switch (not shown) and the motor 1650 is de-energized, thereby stopping the cam 161 (16th state).
. This state is the state shown in FIG. 14A and FIG. 16(A), and the cam 161 has rotated 3600 times.

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 locking state of the slider 66 is released and the case 2 is expanded as described above. It is substantially fixed to the opening mechanism (17 state). This is the state shown in FIGS. 9 and 16(B). The microswitch 200 detects this state.
Then, the motor 166 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 first lever 167 is pulled in the B2 direction in FIG. Its lever 30, -168, is pulled, and the support 180 is closed and supports the disc 6 (state t9). When the cam 161 further rotates, the lever 167 moves in the B1 direction, and the lifting mechanism 1
34 (11° state).

The rotary switch detects this position and the cam 161 stops. In this position, the interlocking portion 404 is again urged by the urging wall 601, and the opening 7 with respect to the case is reliably expanded by the expanding member 66. Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During this operation, the cam 161 rotates, the lever 168 moves in the B1 direction, and the support 1
80 falls (t11 state). When the cam 161 further rotates, the interlocking member 404 moves the branching member 40 as described above.
3b, the case 2 enters the cam path 405b, and becomes the state shown in FIG. The state will be as follows.

To briefly summarize each state in Fig. 16, to is the standby state, tl is the case inserted state, t2 is the lift upper row position, t3 is the support raised position, t3' is the start of slider movement, and t4 is the slider lock (case NL theory), t5
is the lift lowered position, t6 is the standby state, t7 is the case inserted state, t8 is the lift 2nd position, t is the support raised position, tl.

is the lift lowering position, tll is the support lowering position, t12
swerve the slider lock (case release). 17th
Figure 22, Figure 23 (8-(B), Figure 24A)
~(q) Both are schematic explanatory diagrams showing how the operations of each part of the playback device are performed 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 9o 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".

In fact, the support 180 is in a lowered position as shown in FIG. 23 (8).

Next, the case 2 passes through the insertion port 51 into the guides 52 and 53.
When the case 2 is guided and inserted into the case expansion mechanism 6o, the opening of the case 2 is expanded by the expansion member 66, and in this state, the retention hole 13 is engaged by the retention member 62, and the playback device main body 50 It is approximately fixed at .

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the cam 161 is rotated, and the state shown in FIG. By driving the belt 111, the disc holding mechanism 9
0 is transferred forward in the figure (X1 direction). Then the 18th
As shown in the figure, the disk holding mechanism 90 enters into the expanded case 2, the li'=1 moving member 101 comes into contact with the lid 3, the restriction on the sliding member 102 is released, and the sliding member 10
2 slides to the right (arrow Y2 direction), and as mentioned above, the disc holding mechanism 90 is in the "lid/disk holding state" 33.
−.

becomes. At this time, the contact portion 102a of the sliding member 102 contacts the microswitch 201, and the disc holding mechanism 9
0 is detected to be in the "lid/disc holding state J" at this position.Then, the motor 114 rotates in reverse, and the disc holding mechanism 9o begins to be moved backward in the figure (in the X2 direction).At this time, the sliding Roller 103 provided on member 102
and the slope 190b of the reversing lever 190 come into contact with each other, but since the reversing lever 190 can rotate in the direction of arrow R2 in FIG. There isn't.

FIG. 19 shows the state during the transfer. As shown in the figure, the lid 3 and the disc 6 are connected by a disc holding mechanism 90.
is held in place and pulled out from case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the 23rd
As shown in FIG. 13, the support 180 rises and holds the group guard 33 of the disk 6. At this time, the signal surface of the disc 6 will not be damaged because it only touches the support 180 group guard 33.

When the disc holding mechanism 90 is further moved backward (in the X2 direction), as shown in FIG.
and come to approximately corresponding positions.

Even in this state, the support 180 is configured as shown in the figure so as to hold the group guard 33 of the disk 6.

Next, the center mounting ring 133 is attached to the cam unit 160.
The central portion of the disk 6 is held by the movements 1 to 1. FIG. 24 (8) is a diagram explaining this state from the side. Next, as shown in FIG. 24(B), the support 180 is lowered by the operation of the cam unit 160. next,
When the disk holding mechanism 90 is further moved rearward (in the X2 direction), the slope of the contact member 43 comes into contact with the slope 103 provided on the sliding portion 102 of the disk holding mechanism 90.
The sliding member 102 moves to the left (Y1 direction) and enters the above-mentioned "lid holding state". Then, the disk holding mechanism e○ is not holding the disk 6, and the disk 6 is held by the mounting ring 133 in the center as shown in Fig. 24 (q). When the mounting ring 133 is lowered by the operation shown in FIG.
The connection between the case 2 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, it will not hang down and come into contact with, for example, the arm housing 120 while traveling.

When the playback is completed and the user inserts the empty case 2 into the playback device, the engaging member 6 of the case expansion mechanism 60
2 is engaged with the case 2, and the case 2 is connected to the playback device main body 60.
It is in a state where it is approximately fixed to . The microswitch 200 detects this state in the same manner as described above, and this time the cam unit 1-160 operates, and the mounting ring 133 is placed in the upper row, resulting in the state shown in FIG. 24 (q).

Next, the motor 114 drives the bell l-111 by 1,
This time, the disk holding mechanism 90 is moved forward (in the direction of arrow X1) and transitions to the state shown in FIG. 24(B).

At this point, the cam unit 180 is raised by the operation of the cam unit 160, resulting in the state shown in FIG. 24(A). Thereafter, the mounting ring 133 is lowered by the operation of the cam unit 1-160. In this state, the expansion part 66 is case 2.
The opening 7 of the opening 7 is energized to reliably expand. The disc holding mechanism 90 holds the lid 3 and the disc 6 and moves forward (in the X1 direction) with a motor 114. It is transported by belt 111. First, 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 X1 direction), the roller 103 provided on the sliding portion side 102 and the slope 190a of the reversing lever 190 still come into contact with each other. At this time, since the reversing lever 190 is restricted from rotating in R1, the roller 103 climbs the slope 190a and the sliding member 102 moves to the left (Y1 direction), causing the above-mentioned " The lid 3 is pushed into the case 2 by the force 4=j of the leaf spring 94 as shown in FIG. 22.

Then, the motor 114 rotates in the reverse direction again, and the disk holding mechanism 90 is moved rearward (X2 direction) and returns to the position shown in FIG. 1Y. 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 60 with the lid 3 engaged with the case 2.

In this way, the user attaches the case 2 to the playback device main body 6o.
By just slightly inserting the disc 6, the disc 6 is automatically taken out from the case 2 and can be played, and the disc 60 is automatically stored in the case 2. Therefore, there is no need to manually move the case 2 back and forth significantly, which is convenient for use, and it can be expected to operate reliably even under severe use by the user. Case 2
The entire disc 6 must be pulled into the main body 50 of the playback device.
Since only the lid 3 is retracted, there is an advantage that the playback device main body 50 can be made thinner than when the entire case 2 is retracted.

The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. In other words, the disk holding mechanism 9 is controlled by a microcomputer and a normal control circuit.
0 and the arm housing 120.
The above operation can be performed by sequentially operating the motor 124 that drives the cam drive motor 124 and the cam drive motor 166.

For example, the disk holding mechanism 9o is shown in FIG.
In order to stop the disk at each position shown in FIGS. 9, 20, 21, and 22, the microswitches 202 to 206 shown in FIG. It is detected that the plate 109 has come into contact with the motor 11.
This is possible by programming to stop 4.

As described above, according to this embodiment, there is an expanding means for expanding the case, a holding and transporting means for gripping the disc and transporting it in the direction of inserting the disc into the playback apparatus, and an expanding means for expanding the case. −
By providing a biasing means for biasing the case to the expanded state and a control means for controlling the biasing means to cause the expanding means to reach the case expanded state in the disk transport state, the disc can be opened without damaging the disc. This allows ZJi to automatically take things in and out of the case.

Effects of the Invention As described above, the present invention combines an expanding means for expanding a case, a holding and transporting means for clamping a disc and transporting it into a playback device in a direction that accommodates seven people, and an expanding means. By providing a biasing means for biasing the case to the expanded state, and a control means for controlling the biasing means to bias the expanding means to the case expanded state when the clamping and transferring means is transporting the disc. ,
Without damaging the recording surface of the disc when transporting the disc,
It is possible to provide an autoloading recording disc playback device that can load and unload discs.

[Brief explanation of drawings]

FIG. 1(A) is a perspective view of a recording disk reproducing apparatus according to an embodiment of the present invention, FIG. 1(B) is a sectional view of the rail portion of the movable base, and FIG. 1 (q is the cam unit). and a perspective view of the unloader section, Figure 2 is an external perspective view of the device, Figure 3 (8),
(B) kl is a plan view and a sectional view of a disk that can be used in an embodiment of the present invention, respectively; FIGS. 4 and 6 are an exploded perspective view of a disk case housing the disk, and a perspective view of an assembled state; Figures 6 (A) - (q are front views, top views and side views of the lid of the fidget disc case; Figures 7 (8) - (q) are plan views of the lid and disc holding state of the disc holding mechanism, respectively. , a cross-sectional view and a front view, FIG.
~. (B) is a plan view and a cross-sectional view of the disk holding mechanism in a non-holding state, respectively; FIGS. 1o (A) and (B) are configuration diagrams showing the sliding member and clamp arm of the disk holding mechanism; Figures (to) to (q are the same case enlarged 41.
1. . (CI U: A plan view, a cross-sectional view, a front view, and a front view showing the case opening mechanism in a case-uninserted state; FIG. Figures 13 (A) to ρ are block diagrams of the same case expansion mechanism, Figures 14 (8) to (q are block diagrams of the same cam unit,
Fig. 16 is a time chart of the cam unit, Fig. 16 (8) to (5) are configuration diagrams showing the operation of the cam unit,
Figures 17 to 22 are top views of the playback device, Figures 23 (8) and (B) are configuration diagrams showing the same port and disk, and Figures 24 (3) to (q are longitudinal sections of the playback device). Side view, Fig. 26 (~ is a perspective view of a conventional recording disk reproducing device, Fig. 25)
(in the figure) is a cross-sectional view of the same rail, Figure 26 (to), (B),
(C1, Fig. 27 (), (B), (C) are a plan view, sectional view, and front view of the conventional expansion means, Fig. 28 (A), (
B), (C1 is a configuration diagram of the same case expansion mechanism. 1... Disc case, 2... Case body, 3... Lid, 6... ...Disc, 1
3...Engagement hole, 40...Chassis, 50
...Playback device main body, 61...Case insertion slot, 60...Case expansion means, 62...
・Engagement member, 66...Slider, 66...
... Expansion 42, -1 member, 76a, Tab... Contact part A, 8o.
...Fixed base, 90...Disk holding and transferring means, 91...Movable base, 95...
Upper clamp arm, 96...Lower clamp arm, 9
9,100... Latching member, 107,108.
...Release member, 120...Arm housing, 134...Disc lifting mechanism, 160...
...Cam unit, 163...Coil spring, 169...Engagement pin, 180...
The boat, 200-205... micro switch, 400... cam groove, 404... interlocking member, 600... biasing wall. Name of agent: Patent attorney Toshio Nakao and 1 other person ≧
q

Claims (1)

[Claims] A disc case consisting of a case body having a storage space inside which can store a disc-shaped recording medium and having an opening at one end for taking out the recording medium, and a lid that removably engages with the opening. , a playback device main body having a playback means;
an insertion port for guiding the case body to the playback device main body; a non-expanded state in which the opening of the disc case inserted into the insertion port is not expanded; and a non-expanded state in which the opening is expanded;
an expanding means that takes the disc-shaped recording medium into a completely retracted state that does not prevent the disc-shaped recording medium from being taken in and taken out of the disc case; a clamping transfer means for
A recording disk reproducing apparatus comprising urging means for urging the expanding means to the completely retracted state when the disk-shaped recording medium is transferred by the clamping and transferring means.