JPS6161260A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To keep an empty case without any worry during reproduction by fitting a disk into a reproducing device main body automatically so that reproducing can be made with the empty case being held in the reproducing device. CONSTITUTION:A case 2 is inserted from an inserting port 51 to a case engaging expanding mechanism 60, and the case is almost fixed to a reproducing device main body 50. A motor 114 is operated, and a disk sandwiching mechanism 90 holds a cover 3 and a disk 6, pulls them out from the case 2 and a center of a turntable 130 and a center of a disk 6 come to the almost corresponding position. A mounting ring 133 rises, the disk 6 is held, the disk sandwiching mechanism 90 is shifted in the backward direction, the mounting ring 133 falls and the disk 6 is mounted onto the turntable 130. Thus, the empty case 2 is almost fixed to a reproducing device main body 50 by a fitting memory 62 and it is not necessary to remove the empty case 2 for storing.

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a disk-shaped recording medium (hereinafter referred to as a disk).
Remove the disc from the disc case containing the
The present invention relates to a recording disk reproducing device that automatically reproduces data.

Conventional configurations and their problems Traditionally, in playback devices for high-density recording discs, such as video discs, as in Japanese Patent Application Laid-open No. 111158/1983, a player manually plays a disc in a cylindrical disk case. There are many playback devices that use a so-called semi-automatic loading method, in which the player inserts the player deep into the case and manually removes the empty case. However, with such a semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth (moving the case back and forth), and it is difficult for the user to fully operate the case under severe use. There were various problems such as difficulty in configuring the loading mechanism.

Therefore, we have proposed a system that allows the disc loading mechanism to automatically remove the disc from the case by simply inserting the disc case slightly into the main body of the playback device. However, in this case, after loading the recording medium into the playback device, it is necessary to remove the empty case body from the playback device and store it, which is inconvenient because it can be confused with other cases.

Purpose of the Invention This invention provides a system in which a disc is automatically loaded into the playback device body simply by the user slightly inserting the case into the playback device main body, and the disc can be played while the playback device main body holds the empty case. To provide a recording disc playback device that is easy to use and does not have to worry about storing an empty case during playback.

Composition of the Invention The recording disk reproducing apparatus of the present invention includes a disk case body that has an opening at one end, has a storage space inside that can accommodate a disk-shaped recording medium, and has an engaging portion near the opening. and a lid that removably engages with the opening, the engagement that engages with the engagement portion to substantially fix the disc case body to the device. means, a lid release means for releasing the engagement between the opening and the lid, and a loading means for loading the recording medium into a main body of the playback apparatus, and the recording medium is played back by the loading means. When loaded into the apparatus main body, the engaging means is configured to engage the disk case main body and maintain the state substantially fixed to the apparatus.

With this configuration, the user can automatically load a disc into the playback device body by simply inserting the case slightly into the playback device main body, and can play the disc while the playback device holds the empty case.

Description of examples Embodiments of this invention are shown in FIGS. 1 to 24.

First, the outline will be explained. As shown in FIG. 6, the playback device main body 50 includes a chassis 40, an exterior case 50a, a turntable 130, and a pickup unit 120. The BIC 120 is equipped with a reproducing head. A fixed base 80 is provided at the front of the chassis 40, and a case engaging/expanding mechanism 60 is provided on the fixed base 80. The case engaging and expanding mechanism 60 includes an engaging member 62 that serves as a retaining means for substantially fixing the case 2 (FIG. 2), and an expanding member 66 that opens the case 2. Further, a movable base 91 is installed on the chassis 40 so as to be movable back and forth (in the xl and x2 directions), and the movable base 91 is provided with a disk clamping mechanism 90 and claw-shaped release members 107 and 108 that serve as lid release means. It is being The release members 107 and 108 are for releasing the engagement between the case 2 and the lid 3. Disk holding mechanism 90
are upper and lower clamp arms 95 and 96 that sandwich the disc 6,
It has neck hanging members 99, 100 for hanging and stopping the lid 3. The chassis 40 is further provided with a disk elevating mechanism 134 at the retreated position of the movable base 91, which connects the disk holding mechanism 90, the movable base 91, and the disk elevating mechanism 13.
4 constitutes a loading means for loading the disk 6.

Next, the whole will be explained in detail.

FIGS. 1 to 4 respectively show the configurations of a disc and a disc case that can be used in the recording disc reproducing apparatus according to this embodiment. In Figure 1, disk 6
has a center hole 34 and a bank-like outer group guard 33
An inner group guard 32 is provided. In FIG. 2, a rectangular disk case 1 has a disk case main body 2 (hereinafter referred to as the case) and a lid that is removably connected to an opening 7 provided on the front side of the case 2 in the insertion direction X1 into the device. 3.

The case 2 and the lid 3 are made of styrene resin, for example. The interior of the case 2 is a flat disk storage space 5 over its entire width and length, and a disk 6 is stored within this space 5. This space 5 has the opening 7 on the insertion direction xl 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 protrusions 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.
An engagement 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 (N) into which an expanding member, which will be described later, can enter.

A leaf spring 25 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned engagement hole 16 and fixes the lid 3 to the case 2 . The tip of the protrusion 24 is provided with an inclined portion 26 that engages with the release member of the lid 3. FIG. 3 shows a state where the disk 6 and I3 are assembled into the case 2, and the disk 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. 4 is a detailed view of the lid 3, in which the shape of the side facing the disk 6 is formed, for example, into a circular arc with a gap at both ends larger than a gap a in the center. This is to ensure stable operation even if the relative positions of the lid 3 and the disk 6 are slightly shifted in the Z direction during a playback operation to be described later.

FIGS. 5 and 6 show the recording disk reproducing apparatus of this embodiment. FIG. 5 is an external view of the recording disk reproducing apparatus, and as shown in the figure, a case insertion opening 51 is provided in the outer case 50a of the reproducing apparatus main body 50. Figures 6(A) to 6(C) show the basic configuration of a recording disk reproducing apparatus. 6th
In the figure (A), 130 is a turntable on which the disc 6 is placed and brought into playback mode. Reference numeral 131 has a center boss, which centers the disc 6 placed on the turntable 130.

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

Reference numeral 60 denotes a case engagement and expansion mechanism, which is fixed on the chassis 40 near the case insertion opening 51. 66 is an expansion member supported by the fixed base 80 so as to be movable up and down;
The case 2 is expanded with the support member 61 fixed to the fixed base 80. Fixed base 80 is fixed to chassis 40. The engaging member 62 is attached to a fixed base 80 with a shaft 74 .
It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13. 90 is a disk holding mechanism. 95 is an upper clamp arm, which is formed integrally with the movable base 91. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. Reference numerals 99 and 100 are hanging members, and the movable base 9 is secured by the bins 105 and 106.
1, and engages with a notch 19 in the lid 3 to lock and lock the lid 3. A leaf spring 94 is attached to the movable base 91 at a position where it comes into contact with the lid 3. Denoted at 107 and 108 are claw-like release members formed integrally with the movable base 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 rails 45,
46.47, it is supported so as to be movable in the front and rear directions (XI and X2 directions). The rail 45 has V-grooves on both sides as shown in FIG. 6(B), and rollers 92 automatically and freely provided on a movable base 91 are fitted into the grooves of the rail 45. Therefore, the disk holding mechanism 90 is
It never deviates from 6.47. The movable base 91 is fixed to the belt 111 by a connecting piece. belt 111
is hung between gears 112 and 113, and a motor 114 with a speed reducer drives the belt 111 to transport the disk holding mechanism 90. 120 is a pickup unit, a rail 126. The shaft 122 supports the turntable 130 so as to be movable in the left and right directions (Yl, Y2 directions). Like the disk holding mechanism 90, the pickup unit 120 also has a motor 12.
4 and a belt (not shown), the turntable 130
It is configured to be transported in parallel over a disk 6 placed above and to pick up the signal from the disk 6.

In FIG. 6(C), 180 is a support that supports the disk 6, and shafts 181. It is supported by a bearing 182 so as to be able to move vertically (in M, M2 directions). The support 180 is provided in two parts, left and right, as shown in the figure, and the support 180 is provided with the disk 6 in the Yl and Y2 directions (see FIG. 6(A)) so as to hold the group guard 33 of the disk 6.
It is configured to be able to hold a larger range than the diameter of the group guard 33. Further, the support 180 is configured to be in a state below the turntable 130 and a state in which it can protrude above the turntable 130 and support the disc 6 held by the disc holding mechanism 90.

134 is a disk elevating mechanism, which is constructed as shown in FIG. The lift arm 142 is supported by a shaft 141 and a bearing 138 so as to be vertically movable. By rotating the lift arm 142, the lift ring 136 (see FIG. 24) supported by the lift arm 142 and located at the lower part of the elevating ring 135 is raised and lowered, and the mounting ring 133 fixed to the elevating ring 135 lifts and lowers the lift ring 136 (see FIG. 24). The disk 6 is raised and lowered between a state where it is supported above the turntable 130 and a state where it is placed on the turntable 130.

160 is a cam unit, the above-mentioned support 180,
Disc lifting mechanism 134. It drives the case expansion mechanism 60. The cam 161 is horizontally rotatably supported by a shaft 176, and is configured to rotate by the power of a cam drive motor 165 via a worm 166. 162 is a lever, and shaft 179. Bearing 1
63 for horizontal rotation, and is biased in the P direction by a spring 172. The levers 167.168 each have a shaft 178. It is rotatably supported by bearings 170 and 171. Each lever 162°167.1
68 are interlocked with the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15). 190
is a reversing lever for switching the operation of the disk holding mechanism 9°. The reversing lever 190 is horizontally rotatably supported by a shaft 194, biased in the Q direction by a spring 192, and positioned by a block 191.

140 is a turntable driving motor. Figure 6 (
In A), 200 to 205 are microswitches. The microswitch 200 is a switch for detecting the operation of the case expansion mechanism 60. The microswitch 201 is a switch for detecting the operation of the disk holding mechanism 90. Microswitches 202 to 205 are switches for detecting the position of the disk holding mechanism 90.

The disk holding mechanism 90 will be explained in detail.

7(A) to (C), FIGS. 8(A) and 8(B), FIG. 9, and FIG. 10 are explanatory diagrams of the structure and operation of the disk holding mechanism 90. The movable base 91 is provided with contact portions 91a on the left and right sides that contact the lid 3. 92 is 4
The rollers are rotatably supported by the movable base 91 and engaged with the rails 45 as shown in FIG. 7(C).

A roller 93 is rotatably supported on the opposite side of the movable base 91. Reference numeral 94 denotes a leaf spring, which is attached at a position where it comes into contact with the lid 3. Reference numeral 95 denotes an upper clamp arm, which is formed integrally with the movable base 91, and is provided with a claw 95a as shown in FIG. 7(B). The lower clamp arm 96 is rotatably supported by a bearing 97 and biased by a spring 98 in the direction of arrow 98a. Reference numerals 99 and 100 denote neck hanging members that engage with the notch 19 of the lid 3 to hang the lid 3.

Neck hanging members 99 and 100 have pins 105° and 106, respectively.
It is supported so as to be horizontally rotatable relative to the movable base 91. The neck hanging members 99 and 100 are respectively provided with driven ends 115 and 116 that are guided by cam grooves 113 and 114 provided in the sliding member 102, respectively.

The sliding member 102 is approximately plate-shaped, and has cams 1113 and 114.
is guided by pins 105 and 109 and moves approximately linearly in the direction of arrow Y1 or Y2. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure.
Also, a protrusion 102b is provided, and a contact portion 102a is provided on the opposite side.
and a spring hook 110a. The protrusion 102b passes through the square hole 91b made in the movable base 91 and connects the rotating member 1.
01 (see FIG. 7(C)). Further, the sliding member 102 is always urged in the direction of arrow Y2 by the spring 110 applied between the spring hook 111 and the spring hook portion 112 of the movable base 91. Further, the sliding member 102 is provided with a wedge-shaped portion 102c, which is shown in FIGS.
), the wedge-shaped portion 102c is configured 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 supported by an arrow 104a by a spring 104.
It is urged to rotate in the direction shown in FIG. 7(A).

Further, the rotating member 101 has a contact portion 101b as described above.
In addition, a contact end 101c that can come into contact with the lid 3 is formed. The contact portion 101b has a sloped shape as shown in the figure.

Reference numerals 107 and 108 are release members provided at both ends of the movable base 91, which engage with the inclined portion 26 of the 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 202-205. A connecting piece 110' connects the belt 111 and the disk holding mechanism 90.

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

The first state is the "lid/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 the most right side of the figure (direction of arrow Y2) among the three states.
It is located close to. The latching members 99 and 100 are in a position where the lid 3 is restricted as shown in the figure by having driven ends 115 and 116 guided by cam grooves 113 and 114, respectively.

(in the direction of arrow Y2). Latching member 9
9.100 is connected to the driven end 11 by the cam groove 113.114.
5 and 116 are guided, respectively, so that the lid 3 is in a regulated position as shown in the figure.

The leaf spring 94 is in contact with the lid 3 as shown in the figure, biasing the lid 3 forward (in the direction of arrow X1). The rotating member 101 is in contact with the contact end 101C. The lower clamp arm 96 is in a state of clamping the group guard 33 of the disk 6 as shown in FIG. 7(B). In this state, the claw 95a of the upper clamp arm 95 and the contact end 96 of the lower clamp arm 96
a is in a position where it contacts the group guard 33. Also,
As shown in FIG. 10(B), the contact end 96a is connected to the wedge-shaped portion 10.
2c, and by the biasing force of the spring 110, the sliding member 1
02 is biased toward the right side of the figure (in the direction of arrow Y1), as a result, the lower clamp arm 96 moves in the direction of arrow 9 in FIG. 7(B).
It is biased in the direction 8b and holds 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.

The latch members 99, 100, the leaf spring 94, and the rotating member 101 are all in the same state as the [lid/disc holding state], and the lid 3 is not hooked as shown in FIG. . However, in this state, since the sliding member 102 has moved from the "lid/disk holding state" to the left side (Y direction) in the figure, the wedge-shaped part 102 is no longer attached as shown in FIG. 10(B).
c and the contact end 96a are not in contact with each other. Therefore, the lower clamp arm 96 is moved by the biasing force of the spring 98 as shown in FIG.
), it opens in the direction of arrow 98a, and the disk 6
It is in a state where it is not pinched.

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).

In this way, the disc holding mechanism 90 can take three states: "lid/disk holding state", "differential holding state J", 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. That is, by changing the position of the sliding member 102 in the Yl and Y2 directions, the "lid/disk holding state" and the "lid holding state" can be achieved.

The disk holding mechanism 90 can be changed into three states including the "non-holding state". However, among the three states above, "
The "lid holding state" can be held when the sliding member 102 is regulated to the state shown in FIG. 8 by some means against the force of the spring 110.

The case engagement and expansion mechanism 60 will be explained in detail. 1st
Figure 1 (A) to (C), Figure 12 (A) to (C), Figure 13
Figures (A) to (C) are explanatory diagrams of the structure and operation of the case expansion mechanism 60. Reference numeral 80 denotes a fixed base of the case expansion mechanism, which is fixed to the chassis 40 of the playback device and is located near the insertion opening 51 as described above. The support member 61 is fixed to a fixed base 80. Reference numeral 62 denotes an engaging member, which is supported by a bearing 63 and a pin 74 fixed to the fixed base 80 so as to be vertically movable. Further, the engagement member 62 is biased by the spring 72 in the direction of the arrow W1 in FIG. 11(B). The expansion member 66 is provided at a position corresponding to the support member 61 as shown in the figure, and is supported by a bearing 67 fixed to a fixed base 80 so as to be vertically movable. The expanding member 66 is formed with an arm 64 and an abutment end 68 .

65 is a slider, as shown in FIG. 11(C),
It is slidably attached to the fixed base 80. The slider 65 is provided with elongated holes esa and 65b, into which pins 71 and 70 are engaged, respectively, and the arrows Y1 and 70 in the figure. Y
It is configured to slide linearly in two directions. Also,
As shown in FIG. 11(C), the slider 65 is restricted at its center by the abutting portion 63a of the bearing 63, and is configured to flex only slightly downward. Further, the slider 65 is provided with two engaging portions 69, and with this configuration, the expanding member 66 is arranged so that the slider 65 is positioned on the right side of the figure (arrow Y2).
By acting in the direction), it rotates in the direction of arrow 2 in the figure, and by acting in the left direction (direction of arrow Y1) in the figure, it rotates in the direction of arrow v1. Also, slider 6
As shown in the figure, a spring 73 is applied between the slider 5 and the fixed base 80, and constantly urges the slider 65 to the right (in the direction of arrow Y2) in the figure. Further, the slider 65 is provided with an abutting end 76 and a notch 65c. A case guide 75 serves to guide the case 2, and is fixed to the fixed base 80.

The above is the configuration of the case engaging/expanding mechanism 60. Next, how does the case engaging/expanding mechanism 60 expand the case 2 and engage the case 2 to substantially fix it to the playback device? Explain. When the case 2 is not inserted into the playback device, the case engaging/expanding mechanism 60 operates as shown in FIGS.
It is in the state shown in C). In other words, the notch 65 of the slider 65 and the engaging member 62 come into contact with each other, and the slider 65
It is regulated to the state shown in the figure against the urging force of. Therefore, the expanding member 66 is restricted to the position shown in FIGS. 11(B) and 11(C).

The case 2 is inserted into the case engaging and expanding mechanism 60 in this state through the insertion opening 51 of the playback device main body 50 and guided by the case guide 75.

FIGS. 13(A) to 13(C) show the process of inserting the case 2 into the case engaging and expanding mechanism 60. FIG. 13(A) shows the case engaging/expanding mechanism 60 in the same state as FIGS. 11(A) to (C). When the case 2 is inserted into the case engaging and expanding mechanism 60 in this state in the direction of arrow X2 as shown in the figure while being guided by the case guide 75, the vicinity of the opening of the case 2 first comes into contact with the expanding member 66. , case 2 is expanded as shown in FIG. 13(B). Then, when the case 2 is further inserted, the abutting end 6 of the engaging member 62
2a contacts the open end of the case 2, the engagement member 62 rotates in the W2 direction in the figure, and the engagement end 62b of the engagement member 62 engages the case 2 as shown in FIG. 13(C). It engages with the hole 13. When this happens, the notch 65C of the slider 65 and the engaging member 62 are no longer in contact with each other, and the slider 65 is moved by the spring 73.
Due to the urging force of , it slides to the right (Y2 direction) as shown in FIG. 12(B). In the state shown in FIG. 12(B), the expanding member 66 rotates in two directions as shown in the figure, so that it does not interfere with the removal of the disk 6 from the case 2.

In FIGS. 12(A) to 12(C), the state of the case 2 at this time, that is, the state of the expanded case 2, is shown by dashed lines. In this state, the retaining member 62 is restricted by the slider 65 so as not to rotate in the Wi direction as shown in FIG. 12(B). Next, for example, if the contact end 76 of the slider 65 is moved to the left side (Y+ direction) in the figure by some means, the slider 65 moves in the direction of arrow Y1, and the 11th
When the notch 65c comes to the position of the engagement member 62 as shown in the figure, the engagement member 62 rotates in the direction of arrow W1 due to the urging force of the spring 72 and engages with the engagement hole 13 of the case 2. The engagement with member 62 is released.

In this way, the case engaging and expanding mechanism 60 of this embodiment is
It has means for expanding the case 2 as well as means for engaging the case 2, and by moving the slider 65,
The bond with case 2 can be easily released.

In addition, in this embodiment, as shown in FIGS. 11 and 12, a microsinch 200 is placed at a position where it can come into contact with the slider 65.
Therefore, when the case 2 is inserted into the expansion mechanism 60, the case 2 is engaged, and the slider 65 is operated, the microswitch 200 can detect that the case 2 is expanded and engaged. The structure is as follows. Further, when the case 2 is engaged with the engagement member 62, the movement of the engagement member 62 is regulated by the slider 65 as described above, so the case 2 does 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 500 serves as a notification means to notify this detection state.
(FIG. 5) is provided on the front of the playback device main body 50. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp 500 is connected to remain lit while the engagement member 62 is in the engaged state. Note that a buzzer may be used as this notification means. In the case of a buzzer, it should sound when the state changes from the engaged state to the disengaged state.

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, a cam 161 is horizontally rotatably supported by a shaft 176, and a bell) 175. The power of the cam drive motor 165 is transmitted through the worm 166, and the cam drive motor 165 can rotate in both forward and reverse directions.

The lever 162 is connected to the shaft 179, and the levers 167 and 168
are rotatably supported on shafts 178, and cams 1
An interlocking member (not shown) that engages with the cam groove 400 of 61 is provided, and when the cam 161 rotates, the cam groove 400
They operate in conjunction with each other. The lever 167 is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. The lever 168 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling member 174 (not shown in FIG. 14, see FIG. 6(C)), and can rotate the shaft 181. This is to raise and lower the support 180. The lever 162 is biased in the direction P by a coil spring 163, so that the interlocking member 4 provided on the lever 162
04 is always in the cam groove and is biased in the P1 direction. The engagement pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 65 described above. The lever 162 is rotated by the cam 161,
Move the slider 65 in the Y1 direction against the spring 73,
This is to return the slider 65 to the state shown in FIG. 14(A).

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

It is composed of 405c and 405d. Cam groove diameter 2
1 is greater than β2. Lever 167.168
The cam grooves 400 that drive the cam grooves 400 are provided to operate according to the timing chart shown in FIG. 10, respectively.

Next, the operation of the cam unit 160 will be explained with reference to FIGS. 8 and 16, focusing on the operations of the cam 161 and the lever 162. FIG. 14 shows a state in which the case 2 is not inserted into the playback device, and the corresponding cam 161 and interlocking member 404 are in the state shown in FIG. 16(A). When the case 2 is inserted, the slider 65 moves and the contact member 7
6 moves the engagement pin 169, resulting in the state shown in FIG. The slider 65 is stopped by a stopper 410, as shown in FIG. 14(B), and does not move further. This state is the state shown in FIG. 16(B).

The engagement pin 169 is connected to the contact member 76 by the coil spring 163.
The interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is state 11 in Fig. 15 (hereinafter, state 1
(The status is shown in the form of tx in the timing chart in Figure 5).

The microswitch 200 detects this state, and the disc clamping mechanism 90 clamps the disc 6 and starts pulling it out from the case 2. The motor 165 is energized and the cam 16
1 is rotated in the A2 direction shown in FIG. 14(B), and the lever 167.
168 is pulled in the B2 direction shown in FIG.
situation). This state is the state shown in FIG. 16(C).

When the cam 161 further rotates (FIG. 16(D)), the lever 168 moves in the direction B shown in FIG. 14, and the support 180 is machined (T4 state). Furthermore, cam 161
When the cam 161 rotates, the lever 167 moves in the direction 81 in FIG. 14, lowering the elevating mechanism 134 and placing the disc 6 on the turntable 130 (Ts state). When the cam 161 further rotates, the T6 state is reached. Then, the position is detected by a low-return switch (not shown) and the energization of the motor 165 is cut off, so that the cam 161 stops (Ts
situation). This state is the same as the state shown in FIG. 16(B). After this, when the playback switch is turned on, playback starts. When the turntable stops after the playback is finished, the motor 16 is rotated so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above.
5 is energized. When the cam 161 rotates, the lever 167 is first pulled in the direction shown in FIG. After that, the lever 168 is pulled and the support 180
rises and supports the disk 6 (tg state). When the cam 161 further rotates, the lever 167 moves in the 81 direction, lowering the elevating mechanism 134 (tlo state). 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 81 direction, and the support 180 descends (tll-like feeling). When the cam 161 further rotates, the lever 162 moves in the B2 direction because the cam groove 122 is smaller than 21. Since the slider 65 is locked by the stopper 410, it does not move and the lever 1
Only 62 moves. When the cam 6 further rotates, the first
The state shown in Figure 6 (E) will be reached. FIG. 16(C) shows that when the cam 161 further rotates, the interlocking member 404 moves as shown in FIG. 16(E).
As shown in FIG.
In this state, the engagement pin 169 of the abutting member member 76 is in a state where the engagement pin 169 can further rotate in the B1 direction. Therefore, the interlocking member 404 is urged into contact with the inner wall surface of the cam path 405a by the coil spring 163, and when the cam 161 rotates in the A2 direction in this state, the interlocking member 404 enters the cam path 405b. 16th
Proceeding from the state shown in Figure (E), the lever 162 moves the slider 65 in accordance with the movement of the pin 404, and the case 2
The substantially fixed state of is released, and the state shown in FIG. 8 and FIG. 16(A) is achieved.

To briefly summarize each state in Fig. 15, to is the standby state, tl is the case inserted state, t2 is the lift raised position, t3 is the support raised position, t3' is the start of slider movement, and t4 is the slider lock (case removed). , t5 is the lift lowered position, L6 is the standby state, tl is the case inserted state, to is the lift raised position, t9 is the support raised position,
tto indicates the lift lowered position, t11 indicates the support lowered position, and tl2 indicates the slider lock (case detachment).

Operation Next, how the entire reproducing apparatus according to this embodiment operates with the above configuration will be explained step by step. 1st
7 teeth to Fig. 22, Fig. 23 (A).

24(B) and FIGS. 24(A) to 24(C) are all 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 main body 50 of the playback device. At this time, the disc holding mechanism 90 is located slightly in front of the center of the turntable 130 as shown in the figure.

The disk holding mechanism 90 is in the aforementioned "non-holding state".

Further, the support 180 is in a downward position as shown in FIG. 23(A).

Next, the case 2 passes through the insertion opening 51 and moves to the guide 52°53.
When it is guided by and inserted into the case engaging and expanding mechanism 60,
The opening of the case 2 is expanded by the expansion member 66, and in this state, the engagement hole 13 is engaged by the engagement member 62, and the case 2 is substantially fixed to the playback device main body 50.

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the motor 114 operates, and the belt IIT 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 (arrow Y2 direction), and the disc holding mechanism 90 enters the "lid/disk holding state" as described above. At this time, the contact portion 102a of the sliding member 102 contacts the microswitch 201, and it is detected that the disc holding mechanism 90 is in the "lid/disk holding state" at this position. Then, the motor 114 rotates in reverse, and the disk holding mechanism 90 begins to be moved backward in the figure (in the X2 direction). At this time, the roller 103 provided on the sliding member 102 and the slope 190b of the reversing lever 190 come into contact with each other, but 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 disk 6 are held by a disk holding mechanism 90 and pulled out from the case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the support 180 rises as shown in FIG. 23(B) and holds the group guard 33 of the disk 6. At this time, support 1
80 only touches the group guard 33, so it does not damage the signal surface of the disc 6.

When the disk holding mechanism 90 is further moved backward (X2 direction), the center boss 131 at the center of the turntable 130 and the center hole 3 of the disk 6 are
4 will come to a roughly corresponding position.

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

Next, the center mounting ring 133 is attached to the cam unit 160.
It rises by the action of , and holds the center of the disk 6.

FIG. 24(A) is a diagram explaining this state from the side. Next, as shown in FIG. 24(B), the support 180 is lowered by the operation of the cam unit 160. next,
When the disk holding mechanism 90 is further moved rearward (in the X2 direction), the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 and the slope of the contact member 43 come into contact with each other.
The sliding member 102 works to the left (Y1 direction), and the above-mentioned "
The state is "lid held". In other words, the disk 6 is not held by the disk holding mechanism 90, and this is the 21st
This is the state shown in the figure. In this state, the disk 6 is held by the mounting ring 133 in the center as shown in FIG. 24(C). Thereafter, when the mounting ring 133 is lowered by the operation of the cam unit 160, the disc 6 is mounted on the turntable 130. Next, the cam unit 16
0 operates, the engagement between the engagement member 62 of the case expansion mechanism 60 and the case 2 is released, and the empty case 2 can be removed from the playback device.

In this state, the turntable 130 rotates, the big-up unit 120 scans the top of the disc 6, and reproduction is performed. At this time, the lid 3 is held from below by lid holding members 41 and 42 as shown in FIG.
It hangs down so that, for example, the Big A7 Puunisoto 120 does not come into contact with it while driving.

At this time, as shown in FIG. 21, the empty case 2 remains substantially fixed to the playback device main body 50 by the engaging member 62, so there is no need to remove and store the empty case 2. When the regeneration is completed, the cam unit 160 operates and the mounting ring 133 rises, resulting in the state shown in FIG. 24(C).

Next, the motor 114 drives the bell 1-111, and the disk holding mechanism 90 is moved forward (in the direction of arrow X1), shifting to the state shown in FIG. 24(B). Next, the support 180 is raised by the operation of the cam unit 160, and becomes the state shown in FIG. 24(A). Thereafter, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disc holding mechanism 90 moves forward (in the X direction) with the motor 114. It is transported by belt 111. In other words, the state shown in FIG. 20 shifts to the state shown in FIG. 19.

When the disk holding mechanism 90 is further moved forward (X+ direction), the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact. At this time, since the reversing lever 190 is restricted from rotating to R1, the roller 103 climbs the slope 190a and the sliding member 102 moves to the left (Y).

direction) and enters the above-mentioned "non-holding state", and the lid 3 is pushed into the case 2 by the biasing force of the leaf spring 94 as shown in FIG.

Then, the motor 114 rotates in reverse again, and the disk holding mechanism 90 is moved rearward (X2 direction) and returns to the position shown in FIG. 17. After this, the cam unit 160 also operates, and the engagement member 62 of the case 2 and the case expansion mechanism 60
The case 2 is disengaged from the case 2, the disc 6 is stored in the case 2, and the case 2 can be taken out from the playback device main body 50 with the lid 3 engaged with the case 2.

In this way, the user attaches the case 2 to the playback device main body 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, it is convenient to use because there is no need to manually move the case 2 back and forth, and the operation can be expected to be reliable even when the user uses it harshly.In addition, the entire case 2 can be recycled. Since only the disc 6 and the lid 3 are pulled in without being pulled into the device main body 50, there is an advantage that the playback device main body 50 can be made thinner than when the entire case 2 is pulled in.

The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. In other words, the disk holding mechanism 9 is controlled by a microcomputer and a normal control circuit.
0 and the arm housing 120.
The above operation can be performed by sequentially operating the motor 124 that drives the cam drive motor 124 and the cam drive motor 165.

Further, the disk holding mechanism 90 may be configured as follows. To stop the disk at each position shown in FIG. 17, FIG. 19, FIG. 20, FIG. 21, and FIG. This is possible by detecting that the abutment plate 109 attached to the mechanism 90 abuts and programming to stop the motor 114.

Although it operates as described above, according to this recording disk reproducing apparatus, the disk 6 is loaded onto the turntable 13 by the loading means.
Since the case 2 is substantially fixed to the playback device main body 50 by the engaging member 62 while loading the
There is an advantage that there is no need to take the trouble to remove the empty case from the playback device main body 50. Also, while case 2 is playing,
Since it is substantially fixed to the playback device main body 50, the disc 6
If the relative relationship between and case 2 does not change, for example, if the front and back of disc 6 and the display on case 2 are matched in advance,
Just by looking at case 2, you can easily check whether the disc is on the front or back side.

Effects of the Invention The recording disc playback device of the present invention allows the user to automatically load a disc into the playback device by simply inserting the disc case slightly into the playback device main body, and furthermore, the empty case is retained in the device. It has the advantage that it can be played as is, and there is no need to take the trouble of removing the empty case from the device to play it. In addition, since the case is almost fixed to the playback device during playback, the relative relationship between the disc and the case does not change.
For example, if the front and back surfaces of the disc and the display on the case are matched in advance, it is possible to easily confirm whether the disc is on the front or back side just by looking at the case.

[Brief explanation of the drawing]

FIGS. 1A and 1B are a plan view and a sectional view of a disk that can be used in an embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views of a disk case that accommodates the disk, respectively. 4(A) to 4(C) are respectively a front view, a plan view, and a side view of the lid of the disc case. FIG. 5 is an external perspective view of an embodiment of the present invention. Figure 6(A) is a perspective view of its schematic configuration, Figure 6(CB) is a sectional view of the rail portion of the movable base, Figure 6(C) is a perspective view of the cam unit and lifting mechanism, and Figure 6(C) is a perspective view of the cam unit and lifting mechanism. Figures 7 (A) to (C) are a plan view, sectional view, and front view of the disk holding mechanism in the lid/disk holding state, respectively, and Figures 8 (A) and (B).
9(A) and 9(B) are a plan view and a sectional view of the disk holding mechanism in the lid holding state, respectively, and FIGS. A) and (B) are operation explanatory diagrams showing the relationship between the sliding member and the clamp arm of the disc holding mechanism, and Figures 11 (A) to (C) are the same when the case expansion mechanism is not inserted. state plan,
A sectional view and a front view, and FIGS. 12(A) to 12(C) are the same, respectively, and a plan view, a sectional view, and a front view of the case expansion mechanism in the case insertion state, and FIGS. 13(A) to (C) are the same. An explanatory diagram of the operation of the case expansion mechanism, Fig. 14 (A),
(B) is the same (explanatory diagram of the operation of the cam unit, Fig. 15 is a time chart of the same cam unit, Fig. 16 (
A) to (D) are explanatory diagrams of the operation of the same cam unit, Figures 17 to 22 are explanatory diagrams of the operation as seen from above of the entire playback device, and Figures 23 (A) and (B) are also explanatory diagrams of the operation. Operation explanatory diagram showing the relationship between the support and the disk, 2nd
4 (A) to (C) are operation explanatory diagrams showing the same vertical side view of the playback device. l...Disk case, 2.
... Case body, 3 ... Lid, 6 ... Disk (recording medium), 13 ... Engagement hole (engagement part), 40 ... Chassis, 50 ... Playback device main body, 51. ...Case insertion port, 60...Case engagement and expansion mechanism, 62...Engagement member (case engagement means), 62a...Abutment end, 62b.
...Engaging end, 65...Slider, 80...Fixed base, 90...Disk clamping mechanism, 91...Movable base, 95...Upper clamp arm, 96...Lower clamp arm , 99,100... Latching member, 107°108
...Release member, 120...Pickup unit,
134...Disk lifting mechanism, 160...Cam unit, 180...Support, 200-205...Micro switch 0J mountain Figure 13 Figure 14 Procedures procedure Month 04th

Claims (1)

[Claims] A disk case main body having an opening at one end and a storage space capable of storing a disk-shaped recording medium therein, and having an engaging portion near the opening and removably engages with the opening. A recording disk reproducing apparatus using a disc case comprising a lid, a lid releasing means for releasing the engagement between the opening and the lid, and a loading means for loading the recording medium into the reproducing apparatus main body. and an engaging means that engages with the engaging portion to substantially fix the disc case body to the playback device main body, and maintains the substantially fixed state while the recording medium is loaded in the playback device main body. A recording disc playback device equipped with