JPS62183052A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To load smoothly a disk onto a turntable by providing a slope supporting part of the outer peripheral of the disk and leading the disk onto the turntable in an aligning way in the vicinity of the upper face of the turntable from the upper part of the turntable. CONSTITUTION:A cover attachable/detachable to/from a case main body storing a disk is provided and inserted to a reproducer main body 50 having a reproducing means from a loading slit 51. A part of the outer peripheral of the disk in the case main body is clipped by a clipping carrying means 90, the disk is carried above the turntable 130 so as to make the center of the turntable 130 nearly coincident with the center of the disk. Then a release means releases the clipping of the disk and a guide means 600 being a member abutted with a part of the outer peripheral of the disk leads the disk onto the turntable 130.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a recording disk reproducing apparatus that automatically draws a disk-shaped recording medium into the reproducing apparatus and reproduces the medium.

2. Description of the Related Art Conventionally, in playback devices for high-density recording discs, such as video discs, etc., as described in Japanese Patent Laid-Open No. 56-111158, a so-called semi-automatic method has been used to manually take out a disc from a cylindrical disc case. There are many playback devices that use this loading method. However, with this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth significantly, and the loading mechanism does not function perfectly to withstand harsh use by the user. There were various problems such as difficulty in configuring the system.

Therefore, we attempted to create a playback device that would automatically take the disc out of the case and play it when the user inserts the case a little. The present invention has proposed a system that includes this clamping means and a transporting means for transporting the disc within the playback device.

However, in implementing this, there was a problem in mounting the disc on the turntable. That is, in order to accurately mount the disc automatically taken out from inside the case by the clamping means onto the turntable, it is necessary to align the center of the disc with the center of the turntable with high precision. Therefore, we proposed a configuration in which the positions of the clamping means are detected using a high-precision sensor (for example, a photoswitch, etc.) so that the centers can be aligned with high accuracy.

The above recording disk reproducing apparatus will be explained below with reference to the drawings. FIGS. 25(A) to 25(C) show the configuration of a conventional recording disk reproducing apparatus, and FIG. 26 is a sectional view of a main part explaining its operation.

In FIGS. 25 and 26, 60 is a case expansion mechanism;
90 is a disc holding mechanism, 130 is a turntable, 1
34 is a disk elevating mechanism, and 160 is a cam unit. The disk elevating mechanism 134 is driven in conjunction with the cam unit 16Q, and takes two states: a raised position and a lowered position. 600 is a disc guide slope. The disc holding mechanism 90 is configured to transport the disc 6 in the direction of loading and unloading from the case expanded by the case expanding mechanism 60. A photoswitch 700 detects the position where the center of the disk 6 pulled out by the disk holding mechanism 90 and the center of the turntable 130 coincide.

The operation of the recording disk reproducing apparatus configured as described above will be explained below.

First, the disc holding mechanism 9o enters the case body 2 expanded by the case expanding mechanism 60, grips the disc 6, and pulls it out from the case body 2.

During the transfer, the disk 6 is supported by the disk guide slope 500. When the position is detected by the photocoupler γ00, the disk holding mechanism 9o stops, and the disk lifting mechanism 134 rises to support the disk 6 (see FIG. 26).
m), ■)).

Problems to be Solved by the Invention However, when such a configuration is used, it is necessary to detect the disc pull-out position with high precision.
It was necessary to use an expensive switch such as a photo switch and to perform special motor control for positioning. Therefore, the cost of the player has been high. In addition, it took more time than necessary to mount the disc on the turntable, which caused a sense of anxiety to the user.

In view of the above problems, the present invention enables a disk to be reliably mounted on a turntable even if the concentricity between the center of the disk and the center of the turntable is low.

Means for Solving the Problems The present invention solves the above problems by providing a slope that supports a part of the outer periphery of the disk and guides the disk to align with the turntable from above the turntable to near the top surface of the turntable. It shall be established.

Effect of the Invention The present invention uses the above-mentioned configuration to provide a slope from the disk moving surface to the upper side of the turntable in the vicinity of the disk pull-out position, so that the disk can be reliably moved onto the turntable even if the concentricity between the center of the disk and the center of the turntable is low. It can be attached to the top.

As a result, since it is not necessary to once support the disk on the turntable when the disk is pulled out, the detection accuracy of the disk pull-out position does not have to be rough, which makes it possible to reduce the cost of the player.

Furthermore, it is possible to provide an autoloading player that can shorten the time from inserting the case to removing the case.

Embodiment A recording disk reproducing apparatus according to an embodiment of the present invention is shown in FIGS. 1 to 3 and 8 to 24. FIGS. 4 to 7 show the configurations of a disk and a disk case, respectively, which can be used in the recording disk reproducing apparatus according to this embodiment. The configuration of the first hem will be explained.

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

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 6 over its entire width and length, and the disk 6 is stored in this space S. This space 5 has the opening 7 on the insertion direction x1 side, and is closed on the remaining three sides. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and a protrusion 9°10.1 along the three sides of the flat plate part 8.
1 and more. At the center near the opening 7 is a lid 3 which will be described later.
A retaining hole 13 is formed in which the convex portion of the opening 7 engages.
Engagement holes 16 are formed on the left and right sides of the lid 3, into which the protrusions of the lid 3 engage.

The 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.
In addition, a notch 19 is provided symmetrically to the center line (6) into which an expanding member, which will be described later, can enter.

A leaf spring 26 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned engagement hole 16 and fixes the lid 3 to the case 2 . The tip of the protrusion 24 is provided with an inclined portion 26 that engages with the release member of the lid 3. FIG. 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. Furthermore, since the lid 3 engages with the case 2 to close the opening 7, the disc 6 is housed without falling out of the case 2.

FIG. 6 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 at the center. This is to ensure stable operation even if the relative positions of the lid 3 and the disk 6 are slightly shifted in two directions during a playback operation to be described later.

FIGS. 1(M) to (C) and FIG. 2 show the recording disk reproducing apparatus of this embodiment. FIG. 2 is an external perspective view of the recording disk reproducing apparatus, and as shown in FIG. 2, a case insertion opening 61 is provided in the outer case SOa of the reproducing apparatus main body 60.

FIGS. 1(M) to 1(C) show the basic configuration of a recording disk reproducing apparatus. In FIG. 1(m), numeral 130 is a turntable on which the disc 6 is placed and brought into playback mode. Reference numeral 131 denotes a center boss, which centers the disc 6 placed on the turntable 130. 132 is a clamp that clamps the disc 6 placed on the turntable 130 to the turntable 1;
30. 40 is a chassis;
a guide 52 for guiding the case 2 into the playback device main body 5o;
53 is fixed. The guides 52a and 63fL are the guide grooves. Reference numeral 60 denotes a case expansion mechanism, which is fixed on the chassis 4o near the case insertion opening 61. Reference numeral 66 denotes an expansion member that is supported by the fixed base 8o so as to be movable up and down, and the support member 6 fixed to the fixed base 80.
1. Expand case 2. Expand the fixed base 2. The fixed base 8o is fixed to the chassis 4o.

The retaining member 62 is attached to a fixed base 80 with a shaft 74. It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13. 9o is a disk holding mechanism.

Reference numeral 95 denotes an upper clamp arm, which is formed integrally with the movable base 91. 96 is the lower clamp arm, bearing 9
The disc 6 is supported by the disc 7 so as to be vertically movable, and the disc 6 is held between the two. 99°100 is a hanging member,
The pins 105 and 106 are horizontally rotatably supported with respect to the movable base 91, and engage with the notch 19 of the lid 3 to lock the lid 3. Reference numeral 94 is a leaf spring and is attached to the movable pace 91 at a position where it comes into contact with the lid 3.

Reference numerals 107 and 108 are claw-like release members formed integrally with the movable pace 91, which function to engage with the slope 26 of the protrusion 24 of the lid 3 to release the engagement between the lid 3 and the case 2.

The movable base 91 of the disk clamping mechanism 90 has a rail 45,
46.47, it is supported so as to be movable in 19 front and rear directions (XI, X2 directions). The rail 46 has V-grooves on both sides as shown in FIG. 1(B), and a port 92 rotatably provided on a movable base 91 fits into the V-groove of the rail 45. Therefore, the disk holding mechanism 90 is attached to the rail 45.4.
It never deviates from 6.47. The movable base 91 is fixed to the belt 111 by a connecting piece. belt 111
012o is hooked between the gears 112 and 113, and the motor 114 with a speed reducer drives the belt 111, and the disc holding mechanism 90ft is moved. C,
It is supported so as to be movable in the left and right directions (Y 11 Y2 directions) on the turntable 130 . Like the disk holding mechanism 90, the arm housing 12o is also moved in parallel over the disk e placed on the turntable 130 by a motor 124 and a belt (not shown), and is configured to pick up the signal of the disk 6. ing.

Reference numeral 500 denotes a disk guide member, which is provided in an inclined manner from the case expansion mechanism to the turn table 130, and supports the group guard 33 of the disk 6 being transferred.

134 is a disk elevating mechanism, which is constructed as follows. The lift arm 142 is supported by the shaft 141 and the bearing 138 so as to be vertically movable. By rotating the lift arm 142, the mounting ring 133 moves the disc 6 onto the turntable 1.
30 and the turntable 1
30 and is moved up and down.

160 is a cam unit, disk lifting mechanism 134
．． It drives the case expansion mechanism 6o. cam 16
1 is horizontally rotatably supported by a shaft 176;
It is configured to be rotated by the power of a cam drive motor 166 via a worm 166. 162 is a lever, shirt) 179. It is rotatably supported by a bearing 163 and biased in the P1 direction by a spring 172. The levers 167 and 168 each have a shaft 178
, are rotatably supported by bearings 170 and 171. Each lever 162, 167, 168 is linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15).

Reference numeral 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. 1st
In the figure (m), 2oo to 205 are microswitches. The microswitch 200 is a case expansion mechanism 60
This is an operation detection switch. Microsui Nochi 20
1 is a switch for detecting the operation of the disk holding mechanism 90; Microswitches 202 to 205 are switches for detecting the position of the disc holding mechanism 9o.

600 is a disc guide member, and the disc holding mechanism 9
The disc 6 pulled out by o is placed on the turntable 13.
Lead to 0.

The disk holding mechanism 90 will be explained in detail.

Figure 7 (Mu) - (9, Figure 8 (Mu), (B), 9th
Figures ( ), (B) and 10th figure) are structure and explanatory diagrams 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 rotatably supported by four rollers on the movable base 91 and engaged with the rail 45 as shown in FIG. 7(C). A row 293 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 96 denotes an upper clamp arm, which is formed integrally with the movable base 91, as shown in FIG.
Claws 95& are formed as shown in B). The lower two pump arm 96 is rotatably supported by a bearing 97, and is supported by a spring 9.
8 in the direction of arrow 981L.

Reference numeral 99.100 is a locking member that engages with the notch 19 of the lid 3 to lock the lid 3. The latching members 99 and 100 are each supported by pins 105 and 106 so as to be horizontally rotatable relative to the movable base 91. Further, the latching members 99 and 100 are provided with driven ends 115 and 115, respectively, which are guided by cam grooves 113 and 114 provided in the sliding member 102. The sliding member 102 has a substantially plate-like shape, and cam grooves 113 and 114 are guided by vias 105 and 109 to move substantially 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 a protrusion 102b is provided, and the opposite side has an abutting portion 102a and a spring hook 110ai. The protrusion 102b passes through a square hole 91bi drilled in the movable base 91 and connects to the contact portion 1o1b (seventh) of the rotating member 101.
(see Figure (C)). Further, the sliding member 102 is always biased in the direction of arrow Y by the spring 110 applied between the spring hook and the spring hook of the movable base 91. In addition, the sliding member 102
is provided with a wedge-shaped portion 102C, as shown in Fig. 10 (
As shown in (B), the wedge-shaped portion 1020 is configured to come into contact with the contact end 962L of the lower clamp arm 96. The rotating member 101 is horizontally rotatably supported by the movable base 91 by a fulcrum 1011L, and is urged by a spring 104 to rotate in the direction of an arrow 104a (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.

Reference numerals 107 and 108 denote release members provided at both ends of the movable base 91, which engage with the inclined portion 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 is a contact plate, which is provided at a position where it can come into contact with the microswitches 202-205. A connecting piece 110' connects the belt 111 and the disk holding mechanism 9o.

The operation of the disc holding mechanism 90 will be explained. The disk holding mechanism can be in the following three states.

The first state is the "lid/disk holding state".

This is a state in which the lid 3 is closed and the disc 6 is clamped as shown in FIG. 7(A). In this state, the sliding member 10
2 is located closest to the right in the figure (in the direction of arrow Y2) among the three states. The locking member 99.100 is in the cam groove 1
The driven ends 115 and 116 are guided by the guides 13 and 114, respectively, so that the lid 3 is in a restricted position as shown in the figure. The leaf spring 94 is in contact with the lid 3 as shown in the figure, biasing the lid 3 forward (in the direction of arrow x1). The rotating member 101 is in a state where the abutting end 1o1als is in abutment.

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 951L of the upper clamp arm 96 and the contact end 96a of the lower clamp arm 96 are in a position to contact the group guard 33. As shown in FIG. 10(B), the contact end 961L contacts the wedge-shaped portion 102C, and the spring 110
The sliding member 102 moves to the right side in the figure (arrow Y1
As a result, the lower clamp arm 96 is urged in the direction of the arrow 98b of ) in FIG. 7 to clamp the group guard 33.

The second state is a "differential hold state". This is shown in Figure 8 (
As shown in A), the lid 3 is closed and the disc 6 is not clamped. In this state, the sliding member 102 is in an intermediate position among the three states. Latching members 99, 100. The leaf spring 94 and the rotating member 101 are both in the same state as in the "lid/disk 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 (Y
+ direction), the wedge-shaped portion 1020 and the abutting end 96a are no longer in contact with each other, as shown in FIG. 10(B). Therefore, the lower clamp arm 96 has a spring 98
Due to the biasing force, the disc 6 is opened in the direction of the arrow 98a as shown in FIG. 8(B), and the disc 6 is not clamped.

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 (y+ direction) in the figure among the three states. The latching members 99 and 100 have driven ends 116 and 116, respectively.
are guided by the cam grooves 113 and 114 and are in an open state as shown in FIG. The lower clamp arm 96 is in a state similar to that shown in FIG. 8 in that it is open and does not clamp the disc 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,
The sliding member 102 is prevented from sliding to the right (Y2 direction) in the figure by the biasing force of the spring 110.

In this way, the disc holding mechanism 90 has three states: "lid/disc 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 (Y'+l Y2 direction) of 02. The position of the tab sliding member 102 is YI + Y2
By changing the direction, the "lid/disk holding state" and the "differential holding state J."

The disk holding mechanism 90 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 6o will be explained in detail.

11(M)-(C), FIGS. 12(A)-(C), and FIGS. 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 8o. 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 moved by the spring 72 as shown in FIG. 11(B).
is biased in the direction of arrow W1. As shown in the figure, the expanding member 66 is provided at a position corresponding to the supporting member 61, and is supported by a bearing 67 fixed to the fixed base 8o so as to be vertically movable. The expanding member 66 is formed with an arm 64 and an abutment end 68 . 65 is a slider, the first
As shown in FIG. 1(C), it is slidably attached to a fixed base 80. The slider 66 has an elongated hole 66
a.

esb are provided, and pins 71 and 70 are engaged with each of them, so that they slide linearly in the two directions indicated by the arrows "j!" in the figure. In addition, the contact portion 63a of the bearing 63
As shown in FIG. 11(C), the slider 65 is restricted at the center and is configured to bend only slightly downward. Further, the slider 66 has two engaging portions 69.
With this configuration, the expanding member 66 rotates in the direction of arrow v2 in the figure when the slider 65 acts on the right side in the figure (in the direction of arrow Y2), and also acts on the left side in the figure (in the direction of arrow Y1). This results in rotation in the direction of arrow v1. In addition, the slider 66 and the fixed base 8
As shown in the figure, a spring 73 is applied between o and o, and always urges the slider 65 to the right (in the direction of arrow Y2) in the figure. The slider 65 also has an abutting end 76 and a notch 65.
0 is set. A case guide 75 serves to guide the case 2, and is fixed to the fixed base 8Q.

The above is the configuration of the case expansion mechanism 60. Next, it will be explained how the case expansion mechanism 6o 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). The notch 65 of the pawl slider 65 and the engaging member 62 abut, and the slider 65 is regulated in the state shown in the figure against the biasing force of the spring 73. Therefore, the expanding member 66 is restricted to the position shown in FIGS. 11(B) and 11(C). In this state, the case 2 is inserted into the case expansion mechanism 6Q through the insertion opening 51 of the playback device main body 5o and guided by the case guide 76.

FIGS. 13(M) to 13(C) show the process of inserting the case 2 into the case expanding mechanism 6o. Figure 13 (A
) shows the case expansion mechanism 6o in the same state as in FIGS. 11(A) to 11(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 the arrow x2 as shown in the figure, first the expansion member 6
The vicinity of the opening of case 2 is still in contact with 6, and case 2 is in contact with the 13th
It is expanded as shown in Figure (B). Then, case 2
is inserted, the contact end 62& of the engagement member 62 comes into contact with the open end of the case 2, the engagement member 62 rotates in the W2 direction in the figure, and engages as shown in FIG. 13(C). The engagement end 62b of the mating member 62 engages with the engagement hole 13 of the case 2. When this happens, the notch 65c of the slider 66 and the engaging member 62 are no longer in contact with each other, and the slider 65 slides to the right (Y2 direction) as shown in FIG. 12(B) due to the biasing force of the spring 73. In the state of FIG. 12(B), the expansion member 6
6 rotates in the v2 direction to remove the disc 6 from the case 2! It is in an unbearable condition. Figure 12 (
A) to (C) show the state of the case 2 at this time, and the state of the case 2 with the tabs expanded is shown by a chain line. In this state, the retaining member 62 is moved to the 12th position by the slider 65.
As shown in Figure (B), the W direction is regulated so as not to rotate. Next, for example, if the abutting end 76 of the slider 65 is moved to the left side (Y+ direction) in the drawing by some means, the slider 65 moves in the direction of arrow Y1, and the notch 65C is opened as shown in FIG. When the position of the engaging member 62 is reached,
The engaging member 62 is rotated in the direction of arrow W1 by the biasing force of the spring 72, and the engagement between the engaging hole 13 of the case 2 and the engaging member 62 is released.

As described above, the case expanding mechanism 6° of this embodiment has a means for expanding the case 22 and a means for engaging the case 2, and can be easily engaged with the case 2 by moving the slider 65. It is possible to cancel the connection.

Further, in this embodiment, 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.
Since the case 2 is inserted into the expansion mechanism 6o, the case 2 is engaged, and the slider 65 is operated, so that the case 2 is expanded and engaged by the microswitch 200. The configuration is such that it can be detected. Furthermore, when the case 2 is engaged with the engagement member 62, the movement of the retaining member 62 is regulated by the slider 65 as described above, so the case 2 will not come off easily.
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 560 serves as a notification means to notify this detection state.
(FIG. 2) is provided on the front of the playback device main body 50. Therefore, the user can easily check whether or not the case 22 is engaged. The lamp 550 is connected to remain lit while the engagement member 62 is in the engaged state. Note that a buzzer may be used as this notification means. In the case of a buzzer, it should sound when the state changes from the engaged state to the non-engaged state.

The cam unit) 160 will be explained in detail.

14 and 16 are operation explanatory diagrams, and FIG. 15 is a timing chart diagram illustrating the movement of the lever. In FIG. 14, the cam 161 is horizontally rotatably supported by a shaft 176, and a bell) 175. The power of the cam drive motor 166 is transmitted through the worm 166, and the cam drive motor 166 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 coupled to the lifting mechanism 134 via a connecting member 173 to operate the lifting mechanism 134.

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 66 described above.

The L/bar 162 is rotated by the cam 161, moves the slider 66 in the Y1 direction against the spring 73, and returns the slider 65 to the state shown in FIG. 14(A).

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

4060.405d. Cam groove diameter 41
is a dog from 42. The cam grooves 400 that drive the levers 167 and 168 are provided to operate according to the timing chart shown in FIG. 15, 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 410, as shown in FIG. 14, and will not move back. This state is the state shown in FIG. 16(B). The engagement pin 169 is urged by the coil spring 163 to contact the contact member 76, 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.
(The status is shown in the form 1x in the timing chart in the figure). The microswitch 200 detects this state, and the disc holding mechanism 90 grips the disc 6 and starts pulling it out of the case 2. The motor 165 is energized, and the cam 161 moves the disc 6 as shown in FIG. 14(B). The lever 167 is rotated in the direction shown in FIG.
is pulled in the direction B2 shown in FIG. 14(B), and the elevating mechanism 134 rises to support the disc 6 above the turntable 130 (state t2).

This state is the state shown in FIG. 16(C). At this time, since the cam groove diameter 12 is smaller than el, the lever 162 moves in the P2 direction. Since the slider 65 is locked by the stopper 410, it does not move, and only the lever 162 moves. When the cam 6 further rotates, as shown in Fig. 16 (D
). In addition, cam 161 as shown in Fig. 16(C)
When the lever 162 rotates, the interlocking member 404 is located at the branch point between the cam paths 405a and 405c as shown in FIG. In this state, the contact member 76 is separated from the engagement pin 169, and the engagement pin 169 can further rotate in the Pl direction as shown in FIG. 16). Therefore, the interlocking member 404 has a cam path 4os
When the cam 161 contacts and is urged by the coil spring 163 to the inner wall surface of
04 enters the cam path 40B+L. When the cam 161 further rotates, the lever 162 moves in the P1 direction shown in FIG. By moving the lever 162 in the P1 direction, the system slider 66 is moved to the state shown in FIG. 14 (m), and the state in which the engagement member 62 engages the case 2 is released (t3 state).

When the cam 161 further rotates, the lever 167 moves in the direction 81 in FIG.
4 states). When the cam 161 further rotates, it enters the t5 state, and the rotary switch (not shown) detects the multi-position and de-energizes the motor 166.
61 stops (ts state). This state is the state shown in FIGS. 14 and 16 (A), and the cam 161 is 36
o0 It means it has rotated.

After this, when the playback switch is turned on, playback starts.

After the playback ends, the turntable 130 stops and becomes ready for removal. When the case 2 is inserted into the case expansion mechanism 60, the locking state of the slider 65 is released as described above, and Case 2 is almost fixed to the expansion mechanism (
t6 state). This is the state shown in FIG. 12 and FIG. 16(B). The microswitch 200 detects this state, and the motor 166 is energized so that the cam 161 rotates in the cam 1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the lever 167 is first pulled in the direction B2 in FIG.
Support above 30.

When the cam 161 further rotates, the lever 167 moves in the B1 direction, lowering the elevating mechanism 134 (t1o state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90.

When the cam 161 further rotates, the interlocking member 404 moves to the rear cam path 405 facing the branching member 403b, as described above.
b, the lever 162 is in the state shown in Fig. 16 (A).
moves the slider 65, and the substantially fixed state of the case 2 is released, resulting in the state shown in FIGS. 8 and 16 (m).

To briefly summarize each state in Fig. 15, to is the standby state, tl is the case inserted state, tl is the lift up state, t3 is the slider lock (case removed), t4 is the lift lowered position, t5 is the standby state, t6 is the case inserted state, t7 is the lift up state, t8 is the lift down state, t
9 is slider lock (case detachment)? :, respectively shown.

The operation of the recording disk reproducing apparatus configured as described above will be explained below.

Figures 17 to 22, Figure 23 (mu), 2)
4(M) and 4(C) are both schematic explanatory diagrams showing how the operations of each part of the reproducing apparatus are performed in conjunction with each other.

First, FIG. 17 shows the state before the case 2 is inserted into the playback device main body 6o. 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 9o is in the above-mentioned "non-holding state".

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 engagement hole 13 is engaged by the engagement 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 motor 114 operates, and the belt 111 is driven to move the disk holding mechanism 90 to the front (in the figure).
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/disc holding state" as described above. At this time, the contact portion 102& of the sliding member 102 comes into contact with the microswitch 2o1Ka, and it is detected that the disc holding mechanism 9o is in the "lid/disc 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 lid 3 and the disc 6 are held by the disc holding mechanism 9o and pulled out from the case 2. In this state, the disc 6 is supported by the case 2 and the disc holding mechanism, but if it is pulled out further, the case 2 no longer supports it), and the guide member 400 and the disc holding mechanism 9° interlock with each other. It will be in a supported state. At this time, since the disc guide slope SOO only contacts the group guard 33, it does not damage the signal surface of the disc 6.

(The state shown in FIG. 23G) When the disk holding mechanism 9o is further moved rearward (in the X2 direction), the center boss 131 at the center of the turntable 130 and the center hole 34 of the disk 6 are
and come to approximately corresponding positions.

When the disk holding mechanism 90 further moves backward (in the x2 direction), as shown in FIG.
Since the disk is not held, the disk 6 is guided by the guide member eoo and mounted on the turntable 130.

Next, the center mounting ring 133 is attached to the cam unit 160.
As a result of this action, it rises and holds the center of the disk 6.

FIG. 24(B) is a diagram explaining this state from the side. This ensures that the disk 6 is connected to the turntable 130.
This means that the focus is on the subject. 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,
Cam Uniso) 160 operates to open the case expansion mechanism e.

The engagement between the engagement member 62 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 reproduction is completed and the user inserts the empty case 2 into the reproduction device, the engaging member 6 of the case expansion mechanism 6°
2 is engaged with the case 2, and the case 2 is connected to the playback device main body 50.
It becomes approximately fixed to the next state. The microswitch 200 detects this state in the same way as described above, and this time the cam unit) 160 operates to raise the mounting ring 133.
The state is as shown in FIG. 24(B).

Next, the motor 114 drives the belt 111, and the disk holding mechanism 9o is moved forward (in the direction of arrow X1). After this, the mounting ring 1a3 is placed on the cam unit 1.
60, the disk clamping mechanism 9o lowers the lid 3.
Motor 114. It is transported by belt 111. Tsutb,
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 row 2103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact. Since the roller 103 climbs the slope 190a and the sliding member 102 moves to the left (Y+ direction), the above-mentioned "non-holding state" is reached, and the lid 3 is closed as shown in FIG. The case 2 is pushed into the case 2 by the biasing force of the leaf spring 94.

Then, the motor 114 rotates in reverse again, and the disk holding mechanism 90 is moved rearward (in the X2 direction) and returns to the position shown in FIG. 17. After this, the burnt cam unit 160 operates, and the engagement member e2 between the case 2 and the case expansion mechanism 60 is opened.
The case 2 is disengaged from the case 2, the disc 6 is housed 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 5o.
By just slightly inserting the disc 6, the disc 6 is automatically taken out from the case 2 and playback becomes possible, and the disc 6 is also automatically stored in the case 2. Therefore, there is no need to manually move the case 2 back and forth, making it convenient to use, and reliable operation can be expected even under severe use by the user. Furthermore, since only the disc 6 and the lid 3 are pulled in without pulling the entire case 2 into the playback device main body 60, there is an advantage that the playback device main body 60 can be made thinner than when the entire case 2 is pulled in. .

The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. The disk holding mechanism 9 is controlled by a tab, 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.

Further, the disk holding mechanism 90 may be configured as shown in FIG.
9, 20, 21, and 22, the microswitches 202 to 205 shown in FIG. 6(A) are attached to the disk holding mechanism 90. It is detected that the contact plate 109 is in contact with the motor 11.
This is possible by programming ↓ to stop 4.

As described above, according to the present embodiment, the case engagement means substantially fixes the case body to the playback device main body in a releasable manner, and the clamp transfer means that transfers the disc inside the case body in the direction of entering and exiting the playback device. a turntable on which the disc is mounted, and a guide member that guides a part of the outer periphery of the disc pulled out by the clamping and transporting means and guiding the disc onto the turntable. However, 4f, which automatically transfers the disk between the turntable and the case, can be achieved simply by performing the operation of transferring the disk.

Effects of the Invention As described above, according to the present invention, there is provided a main body of a playback device having a playback means, a holding and transferring means for transferring a disc from inside the case in a direction of loading and unloading the disc into the playback device, and a turntable on which the disc is mounted. By providing a release means for releasing the state in which the disk is fully held by the holding and transferring means, and a guide member that guides a part of the outer periphery of the disk that has been released from the holding state, and guides the disk onto the turntable, the disk can be moved. It is possible to provide an autoloading recording disc playback device that can smoothly mount a disc on a turntable and retrieve it from the turntable into a case.

[Brief explanation of drawings]

FIG. 1(M) 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(C) is a cam of the same. 2 is a perspective view of the unit and the elevating mechanism; FIG. 2 is an external perspective view of the device; FIGS. 4 and 5 are respectively a cutaway exploded perspective view and an assembled perspective view of the disk case housing the disk, and FIG.
Figures (M) to (C) are a front view, top view, and side view of the lid of the disc case, respectively, and Figures 7 (M) to (C) are plane views of the lid and disc holding state of the disc holding mechanism, respectively. figure. 8(A) and (B) are respectively a plan view and a sectional view of the disk holding mechanism in the differential holding state, and FIGS. A plan view and a sectional view of the non-holding state, FIGS. 10(A) and 10(B) are operation explanatory diagrams showing the relationship between the sliding member of the disk holding mechanism and the clamp arm, and FIGS. q is a plan view, sectional view, and front view of the case expansion mechanism in the case non-inserted state, and FIGS. 12(M) to (C) are respectively top views of the case expansion mechanism in the case inserted state, A sectional view and a front view, FIGS. 13 (M) to (Cl are also explanatory diagrams of the operation of the case expansion mechanism, FIG. 14 (M). Φ) are also explanatory diagrams of the operation of the cam unit, and FIG. Time chart of the same cam unit, Figure 16 (mu)~
(D) is an explanatory diagram of the operation of the cam unit, Figures 17 to 22 are explanatory diagrams of the operation of the entire playback device seen from above, and Figures 23 (A) to (C) are the same guide members. Operation explanatory diagram showing the relationship with the disk, Fig. 24 (m)
, (B) is an explanatory diagram of the operation shown in a vertical sectional side view of the reproducing device, and FIGS. 25(A) to (q are perspective views of the conventional row, a sectional view of the main part, and a perspective view of the main part, and FIG. 26(A) (B) and (C) are explanatory diagrams of the same operation. 1...Disk (recording medium), 2...
Case body, 3...Lid, 6...Disc (recording medium), 13...Engagement hole, 40...
... Chassis, 60 ... Playback device body, 61
...Case insertion port, 6o...Case expansion mechanism, 62...Engagement member, 66...
Slider, 80...Fixed base, 90...
・Disk holding mechanism (holding means), 91...
Movable base, 96... Upper clamp arm, 96.
...Lower clamp arm, 99°100...
Latching member (lid latching means), 107°108...
・Release member (lid release means), 120...Arm housing, 134...Disk lifting mechanism, 1
60...cam unit, 2oo~205...
... Micro switch, 500 ... Disc guide slope, 600 ... Guide member. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3 (A) ζBn. 33 Fig. 10 q/ q/ q6a-tozc toz Fig. 13 Δθ Fig. 14 (c) (f32 41) Sb Fig. 17 Fig. 18 Fig. 19 Fig. 20 Fig. 21 Fig. 22 Fig. 23

Claims (1)

[Claims] A disk case consisting of a case body that has a storage space inside which can store a disk-shaped recording medium and has an opening at one end for taking out the recording medium, and a lid that removably engages with the opening. a playback device main body having a playback means, a turntable for rotating the recording medium, an insertion port for guiding the case into the playback device, and the disc in the case main body inserted into the insertion port. a clamping and transporting means for gripping a part of the outer periphery of the disc and transporting the disc above the turntable to a position where the center of the turntable and the center of the disc substantially coincide; and the clamping and transporting means a releasing means for releasing the state in which the disc is held between the discs, and a member that comes into contact with a part of the outer periphery of the disc that has been released from the state in which it is held by the holding and transferring means, and that guides a part of the outer periphery of the disc;
A recording disk reproducing device comprising a guide member for guiding the disk onto the turntable.