JPS60256952A - Recording disc reproducing device - Google Patents

Abstract

PURPOSE:To attain smooth drawing-out by providing a suport member provided movably to a support position and a non-support position, moved to the support position on the way of a recording medium from the 1st position to the 2nd position by means of a carrying means and supporting the recording medium up to the 2nd position. CONSTITUTION:A reproducing device main body 50 having a reproducing means, a turntable 130 loading a disc, over locking members 99, 100 locking the cover, and a moving base 91 moving the locking members 99, 100 and the disc to the 1st position where the cover locking members 99, 100 lock the cover and the 2nd position where the center of disc is made nearly coincident with the center of the turntable 130 are provided. Further, a support 180 provided movably at the support position and the non-support position, moving them to the support position on the way of carrying the disc from the 1st position to the 2nd position by the moving base 91 and supporting the disc up to the 2nd position is provided.

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 configuration and its problems True Conventionally, in playback devices for high-density recording disks, such as video discs, as in Japanese Patent Application Laid-open No. 5,641-1158, the disk in a cylindrical disk case is manually inserted into the back of the playback device. There are many playback devices that use a so-called semi-automatic loading method, in which the empty case is inserted until the empty case is inserted and the empty case is manually removed. However, with this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth 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, an attempt was made to create a playback device that would allow the user to automatically take out the disc from the case and play the disc by simply inserting the case slightly. As a structure, we have devised one that is equipped with a lid latching means for latching and securing the lid of the disc case, and a means for transporting the lid latching means and the disc within the main body of the playback apparatus.

However, in implementing this, there was a problem in supporting the disk during transportation. That is, when the disk is pulled out from the case body together with the lid by the lid latching means and the transfer means, if the entire disk is pulled out from the case body,
It is necessary to support the disc so that it does not fall. However, if a fixed guide is provided, the lid hooking means will interfere with the guide at the beginning of the drawer, making it impossible to draw out the drawer smoothly.

Purpose of the Invention This invention enables the user to automatically pull out the recording medium from the case and play it by simply inserting the case slightly into the main body of the playback device, and also allows the user to remove the lid from the case when pulling out the recording medium. It is an object of the present invention to provide a recording disk reproducing device which can support a recording medium without interfering with the transfer of a stop means and can smoothly draw out the recording medium.

Composition of the Invention The recording disk reproducing device of the present invention includes a case main body which has a storage space capable of storing a disk-shaped recording medium therein and has an opening at one end for taking out the recording medium, and a case body which can be attached and detached from the opening. A recording and reproducing device using a disc case consisting of a lid that can be engaged with each other, the main body of the reproducing device having a reproducing means, a turntable on which the recording medium is mounted, and a lid latch that hooks and stops the lid. and a first position where the lid latching means and the recording medium are transported together so that the center of the recording medium and the first position where the lid latching means performs the latching operation of the lid are approximately at the center of the turntable. a transporting means for moving the recording medium between a corresponding second position; and a transporting means movable between a supported position and a non-supported position, and the recording medium is transported from the first position to the second position by the transporting means. and a support member that moves to the support position midway and supports the recording medium up to the second position.

With this configuration, when a disc case containing a recording medium is slightly inserted into the main body of the playback device, the lid latching means latches and stops the lid of the disc case, and in this state, the lid latching means is transferred to record. The medium can be pulled out from the disc case and transported to a position that substantially coincides with the center of the turntable.

Furthermore, by moving the lid latching means in the opposite direction, the recording medium and the lid can be recovered into the disc case.

During the above-mentioned transfer of the lid latching means, the recording medium pulled out from the case is supported by the support member. The support member advances to the support position to support the recording medium during the transfer, and remains retracted to the non-support position while the lid and lid latching means pass. Therefore, the support member can support the recording disk when it is pulled out without interfering with the movement of the lid latching means.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the invention is shown in FIGS. 1-24. 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 an arm housing 120. The arm housing 120 mounts a reproducing head.

A movable base 91 moves back and forth on the chassis 40 (arrow X1
．． 107, on a pair of claw-shaped release members that serve as means for releasing the G4 lid at both ends of the movable base 91.
108, a pair of latch members 99' serving as lid latch means,
100 are set up.

The latching members 99, 100 are horizontally rotatable.

The movable base 91 is driven by a motor 114. Furthermore, an upper clamp arm 95 and a lower clamp arm 96 for clamping the lid 3 and the disc 6 are attached.

The movable base 91, the motor 114, and the clamp arms 95,96 constitute a means for transporting the lid 3 and the disk 7G. A support 180 (FIG. 6(C), FIG. 24), which serves as a supporting member on which the disk 6 is placed, is provided on the transfer path of the disk 6. The support 180 is driven by the cam unit 160 to move up and down.

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 is in the insertion direction
One side is the opening 7, and the remaining three sides are closed. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and ridges 9, 10, .
It consists of 11 and more. An engagement hole 13 is formed in the center near the opening 7, into which a protrusion of the lid 3 (to be described later) engages, and on the left and right sides of the opening 7, there are retention holes 16 into which projections of the lid 3 engage. is formed.

The end of the lid 3 is provided with a flange portion 18 that closes the opening 7 of the case 2 when the lid 3 is securely fixed to the case 2.
In addition, a notch 19 is provided symmetrically to the center line (1) into which an expanding member, which will be described later, can enter.

A leaf spring 25 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned engagement hole 6 to fix 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 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. Further, since the lid 3 engages with the case 2 to close the opening 7, the disc 6 is housed in the case 2 without falling out.

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 two directions 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.

, 132 are clamps that press the disc 6 placed on the turntable 130 into contact with the turntable 130. 40 is a chassis to which guides 52 and 53 for guiding the case 2 into the playback device main body 50 are fixed. Guides 52a and 53a are guide grooves. Reference numeral 60 denotes a case expansion mechanism, which is fixed on the chassis 40 near the case insertion opening 51. 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 on the top.

It is a clamp arm and 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. 99, 100 are lid hanging members, pin 105
．． 106, it is supported horizontally rotatably with respect to the movable base 91, and engages with the notch 19 of the lid 3 to open the lid 3.
Stop hanging. 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-rear direction (X1, X2 directions). The rail 45 has V grooves on both sides as shown in FIG. 6(B), and a roller 92 rotatably provided on a movable base 91 fits into the V groove of the rail 45. Therefore, the disk holding mechanism 90 is connected to the rail 45,
It never deviates from 46.47. The movable base 91 is fixed to the belt 111 by a connecting piece. belt 11
1 is hung between gears 112 and 113, and drives the belt 111 with a motor 114 equipped with a reduction gear.
The disk holding mechanism 90 is transferred. 120 is an arm housing, rail 126. The shaft 122 supports the turntable 130 so as to be movable in the left and right directions (Yl, Y2 directions). Like the disk holding mechanism 90, the arm housing 120 is also configured to be moved in parallel over the disk 6 placed on the turntable 130 by a motor 124 and a belt (not shown), and to pick up signals 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 in the Y, Y2 direction (see FIG. 6(A)) so that the group guard 33 of the disk 6 can be held.
It is configured to be able to hold a larger range than the diameter of the group guard 33. Further, the support 180 is configured to be in a state below the turntable 130 and a state in which it can protrude above the turntable 130 and support the disc 6 held by the disc holding mechanism 90.

Reference numeral 134 denotes a disk elevating mechanism, which is constructed as follows. The lift arm 142 is supported by a shaft 141 and a bearing 138 so as to be vertically movable. By rotating the lift arm 142, the lift ring 136 (not shown in FIG. 6(C), see FIG. 24) supported by the lift arm 142 and located at the lower part of the elevating ring 135 is raised and lowered. A mounting ring 133 fixed to a ring 135 moves the disk 6 up and down between a state where it is supported above the turntable 130 and a state where it is placed on the turntable 130.

160 is a cam unit, the above-mentioned support 180,
Disc lifting mechanism 134. It drives the case expansion mechanism 60. The cam 161 is horizontally rotatably supported by a shaft 176, and is configured to rotate by the power of a cam drive motor 165 via a worm 166. 162 is a lever, and shaft 179. Bearing 1
63 for horizontal rotation, and is biased by a spring 172 in the P1 direction. The levers 167 and 168 are rotatably supported by a shaft 17B and bearings 170 and 171, respectively. Each lever 162°167.1
68 are interlocked with the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15). 190
is a reversing lever for switching the operation of the disk holding mechanism 90. The reversing lever 190 is horizontally rotatably supported by a shaft 194, biased in the Q direction by a spring 192, and positioned by a block 191.

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

The disc holding mechanism 90 will be explained in detail.

7(A)-(C), FIGS. 8(A), (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 four rollers, which are rotatably supported by the movable head 91;
It is engaged with the rail 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. An upper clamp arm 95 is formed integrally with the movable base 9, and has a claw 95a formed thereon as shown in FIG. 7(B). The lower clamping arm 9.6 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 cam grooves 113 and 114.
is guided by pins 105 and 109 and moves approximately linearly in the direction of arrow Y1 or Y2. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure.
Also, a protrusion 102b is provided, and a contact portion 102a is provided on the opposite side.
and a spring hook 110a. The protrusion 102b passes through the square hole 91b made in the movable base 91 and connects the rotating member 1.
01 (see FIG. 7(C)). Further, the sliding member 102 is always 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. Furthermore, the sliding member 102 is provided with a wedge-shaped portion 102c, as shown in FIGS. 1.0 (A) and (B).
It is configured so that the wedge-shaped portion 102c can come into contact with the abutting end 96a of the lower clamp arm 96 as shown in FIG. 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 1otb 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. 110' is a connecting piece that 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 located closest to the right in the figure (in the direction of arrow Y2) among the three states. Neck hanging member 99.100 has cam groove 1
The driven ends 115 and 116 are guided by 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 contact with the lid 3 at the contact end 101C.

The lower clamp arm 96 is attached to the disc 6 as shown in FIG. 7(B).
The group guard 33 is held in between. In this state, the claw 95a of the upper clamp arm 95 and the lower clamp arm 9
The contact end 96a of G is in a position to contact the group guard 33. In addition, as shown in FIG. 10(B), the contact end 96a contacts the wedge-shaped portion 102c, and the sliding member 102 is urged to the right in the figure (in the direction of arrow Y1) by the urging force of the spring 110. As a result, the lower clamp arm 96 is biased in the direction of arrow 98b in FIG. 7(B) and clamps the group guard 33.

The second state is the "lid holding state". This is shown in Figure 8 (
A) The lid 3 is closed and the disc 6 is not clamped as shown in the figure. In this state, the sliding member 102 is in an intermediate position among the three states.

The neck hanging 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 hung as shown in FIG. . However, in this state, since the sliding member 102 has moved from the "lid/disk holding state J to the left side (Y1 direction) in the figure, the wedge-shaped portion 102 is no longer connected to the wedge-shaped part 102 as shown in FIG. 10 (B').
2C 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.
As shown in B), it opens in the direction of arrow 98a and is in a state in which the disc 6 is not clamped.

The third state is on the [non-holding 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 neck hanging 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", "lid holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Yl, Y'2 direction) of 02. In other words, by changing the position of the sliding member 102 in the Yl and Y2 directions, the "lid/disk holding state" and "
"Lid holding state".

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

The case expansion mechanism 60 will be explained in detail.

11(A)-(C), FIG. 12(A)-(C), and FIG. 13(A)-(C) are explanatory diagrams of the structure and operation of the case expansion mechanism 60. . 80 is a fixed base of the case expansion mechanism, which is fixed to the chassis 40 of the playback device;
As described above, it is located near the insertion port 51. The support member 61 is fixed to a fixed base 80. 62 is a retaining member;
It is supported by a bearing 63 and a pin 74 fixed to a fixed base 80 so as to be vertically movable. Further, the retaining member 62 is biased by the spring 72 in the direction of the arrow W1 in FIG. 11(B). The expansion member 66 is connected to the support member 6 as shown in the figure.
1, and is supported by a bearing 67 fixed to a fixed base 80 so as to be vertically movable. The expanding member 66 is formed with an arm 64 and an abutment end 68 . A slider 65 is slidably attached to the fixed base 80, as shown in FIG. 11(C). The slider 65 is provided with elongated holes 65a and 65b, into which pins 71 and 70 are engaged, respectively, as indicated by the arrows Y1 and 70 in the figure. It is configured to slide linearly in the Y2 direction. Furthermore, the abutting portion 63a of the bearing 63 is also shown in FIG.
As shown in C), the slider 65 is restricted at the center and is configured to bend only slightly downward. Furthermore, the slider 65 is provided with two retaining portions 69, and with this configuration, the expansion member 66 is rotated in the direction of arrow 2 in the figure by the slider 65 acting on the right side (direction of arrow Y2) in the figure. However, by acting to the left in the figure (in the direction of arrow Y1), it rotates in the direction of arrow V1. Also,
As shown in the figure, a spring 73 is applied between the slider 65 and the fixed base 80, and always urges the slider 65 to the right (in the direction of arrow Y2) in the figure. Also, the slider 65
is provided with an abutting end 76 and a notch 65C. 75
is a case guide which serves to guide the case 2 and is fixed to the fixed base 80.

The above is the configuration of the case expanding mechanism 60. Next, it will be explained how this case expanding mechanism 60 expands the case 2 and engages the case 2 to substantially fix it to the playback device. . When the case 2 is not inserted into the playback device, the case expansion mechanism 60 is in the state G shown in FIGS. 11(A) to 11(C).

That is, the notch 65 of the slider 65 and the engaging member 62 come into contact with each other, and the slider 65 is regulated in the state shown in the figure against the biasing force of the spring 73. Therefore, the expanding member 66
It is regulated to the positions shown in Figures (B) and (C). The case 2 passes through the insertion opening 51 of the playback device main body 50 into the case expansion mechanism 60 in this state, and the case guide 7
5 and inserted.

FIGS. 13A to 13C show the process of inserting the case 2 into the case expansion mechanism 60.

FIG. 13(A) shows the case expansion mechanism 60 in the same state as FIGS. 11(A) to (C).

When the case 2 is inserted into the case expansion mechanism 60 in this state while being guided by the case guide 75 in the direction of arrow 2 is expanded as shown in FIG. 13(B). Then, when the case 2 is further inserted, the engaging member 6
The contact end 62a of the case 2 contacts the open end of the case 2, the engagement member 62 rotates in the W2 direction in the figure, and the engagement end 62b of the engagement member 62 rotates as shown in FIG. 13(C). Engagement hole 1 of case 2
3. In this case, the notch 65 of the slider 65
C and the engaging member 62 are no longer in contact with each other, and the slider 6
5 slides to the right (Y2 direction) as shown in FIG. 12(B) by the biasing force of the spring 73. In the state shown in FIG. 12(B), the expanding member 66 rotates in two directions as shown in the figure, so that it does not interfere with the removal of the disk 6 from the case 2. In FIGS. 12(A) to 12(C), the state of the case 2 at this time, that is, the state of the expanded case 2, is shown by dashed lines. In this state, the retaining member 62 is restricted by the slider 65 so as not to rotate in the W1 direction as shown in FIG. 12(B). Next, for example, the contact end 76 of the slider 65 is moved to the left side (Y
, direction), the slider 65 moves in the direction of arrow Y1, and when the notch 65C comes to the position of the engaging member 62 as shown in FIG. 62 rotates in the direction of arrow W1, and the engagement between the engagement hole 13 of the case 2 and the engagement member 62 is released.

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

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.
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. Furthermore, when the case 2 is engaged with the engagement member 62, the movement of the engagement member 62 is regulated by the slider 65 as described above, so the case 2 will not 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, the buzzer should sound when the state changes from a consistent state to a non-coordinated 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
is rotatably supported by the shaft 178, and the cam 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. 16(C)), and can rotate the shaft 181. This is to raise and lower the support 180. The lever 162 is biased in the B1 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 B1 direction.

The retaining pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 65 described above. The lever 162 is rotated by the cam 161, moves the slider 65 in the Y1 direction against the spring 73, and returns the slider 65 to the state shown in FIG. 14(A).

The cam a400 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 1
1 is greater than i2. Lever 16T, 168
The cam grooves 400 that drive the cam grooves 400 are provided so as to operate according to the timing chart shown in FIG. 1θ.

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
The interlocking member 404 is in the state shown in FIG. 16(A). When the case 2 is inserted, the slider 65 moves and the abutment member 76 moves the engagement pin 169, resulting in the state shown in FIG. 9. The slider 65 is stopped by a stopper 410, as shown in FIG. 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 7 by the coil spring 163.
6, and the interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is the t1 state in FIG. 15 (hereinafter, the state will be indicated as Lx in the timing chart of FIG. 15).

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

At this time, since the cam groove diameter 12 is smaller than 11, the lever 16
2 moves in the B2 direction. The slider 65 is the stopper 41
Since it is locked by 0, it does not move, and only the lever 162 moves. When the cam 6 rotates further,
The state shown in FIG. 16(D) is reached. When the cam 161 rotates further than in FIG. 16(C), the interlocking member 404 is located at the branch point of the cam paths 405a and 405C, as shown in FIG. The contact member 76 is urged to rotate in the B1 direction, and in this state, the contact member 76 is separated from the engagement pin 169, as shown in FIG.
As shown in D), the engagement pin 169 is in a state where it can further rotate in the 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 405a. When the cam 161 further rotates, the lever i62 moves to B shown in FIG.
In one direction.

The lever 168 moves in the B1 direction. By moving the lever 162 in the P direction, the slider 65 is moved to the state shown in FIG. 14(A), and the state in which the engagement member 62 engages the case 2 is released (state 14). At the same time, the lever 168 moves in the B1 direction shown in FIG.
Support 180 falls (state 14). Furthermore cam 1
61 rotates, the lever 167 moves in the B1 direction in FIG. 14, lowers the elevating mechanism 134, and places the disc 6 on the turntable 130 (state 15). When the cam 161 further rotates, it enters the t6 state, its position is detected by a rotary switch (not shown), and the motor 165
The cam 161 stops when the current is turned off (
16 states). This state is shown in Figures 14(A) and 16.
This is the state shown in Figure (A), meaning that the cam 161 has rotated 360 degrees.

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

After the playback is finished, the turntable 130 stops and becomes ready for removal, and when the case 2 is inserted into the case expansion mechanism 60, the locking state of the slider 65 is released and the case 2 is expanded as described above. Almost fixed to the opening mechanism (
R7 state). This is the state shown in FIGS. 9 and 16(B). The microswitch 200 detects this state,
The motor 165 is energized so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the lever 167 is first pulled in the 2 direction of FIG.
Support above 30. The lever 168 is pulled, and the support 180 rises to support the disk 6 (R9 state). When the cam 161 further rotates, the lever 167 moves in the B1 direction, lowering the elevating mechanism 134 (t1
o state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During that operation, cam 1
61 rotates, the lever 168 moves in the B1 direction, and the support 180 descends (state t11). Furthermore, cam 16
1 rotates, the interlocking member 404 faces the branching member 403b and then enters the cam path 405b, as described above, and enters the cam path 405b.
6 (A), the lever 162 is moved to the slider 65.
, the almost fixed state of case 2 is released,
The state is as shown in FIG. 8 and FIG. 16 (A,).

To briefly summarize each state in Fig. 15, to is the standby state, tl is the case inserted state, R2 is the lift raised position, R8 is the support raised position, t8' is the start of slider movement, and R4 is the slider lock (case removed). , R5 is the lift lowered position, R6 is the standby state, R7 is the case inserted state, R8 is the lift raised position, R9 is the support raised position,
tlG is the lift lowering position, tll is the support lowering position,
R12 indicates a slider lock (case removal).

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

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 the case 2 is guided and inserted into the case expansion mechanism 60, the opening of the case 2 is expanded by the expansion member 66, and in this state, the engagement hole 13 is engaged by the retention member 62, and the playback device main body 50 It is approximately fixed at .

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the motor 114 operates, and the belt 111 is driven to move the disk holding mechanism 90 to the front (in the figure).
X1 direction). Then, as shown in FIG. 18, the disk holding mechanism 90 enters into the expanded case 2, the rotating member 101 comes into contact with M3, and the sliding member 102
is released, the sliding member 102 slides to the right (arrow X2 direction), and as described above, the disk holding mechanism 90 moves to [
"Lid/disc holding state". At this time, sliding member 1
The contact portion 102a of 02 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 motor 1
14 is reversed, and the disk holding mechanism 90 is positioned at the rear (X) in the figure.
2 directions). At this time, the sliding member 102
The slope 1 of the roller 103 and reversing lever 190 provided in
90b, but since the reversing lever 190 is rotatable in the direction of arrow R2 in FIG. 18, there is no problem in transferring the disk holding mechanism 90 just by rotating the reversing lever 190.

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. Further, since the support 180 remains lowered until this time, there is no problem of interference with the support 180 when the lid 3 passes.

When the disk holding mechanism 90 is further moved rearward (in the X2 direction), as shown in FIG.
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 backward (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, and the sliding member 102 acts to the left (X1 direction), and the above-mentioned "
The state becomes "type retention state". In other words, the disc 6 is not clamped by the disc clamping mechanism 90, and this is the state in which the disc 6 is not clamped by the disc clamping mechanism 90.
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 works and 1. The engagement between the engaging member 62 of the case expanding mechanism 60 and the case 2 is released, and the empty case 2 can be removed from the playback device.

In this state, the turntable 130 rotates, the arm housing 120 scans over the disk 6, and reproduction is performed. At this time, since the lid 3 is held from below by the lid holding members 41 and 42 as shown in FIG. 21, it will not hang down and come into contact with, for example, the arm housing 120 while traveling.

When the playback is completed and the user inserts the empty case 2 into the playback device, the engaging member 6 of the case expansion mechanism 60
2 is engaged with the case 2, and the case 2 is connected to the playback device main body 50.
It is in a state where it is approximately fixed to . The microswitch 200 detects this state in the same manner as described above, and this time the cam unit 160 operates to raise the mounting ring 133.
The state shown in FIG. 24(C) is reached.

Next, the motor 114 drives the belt 111, and the disk holding mechanism 90 is now moved forward (in the direction of arrow X1), shifting to the state shown in FIG. 24(B). Then, the support 180 is raised by the operation of the cam unit 160,
The state shown in FIG. 24(A) is reached. After this, place ring 1
33 is lowered by the operation of the cam unit 160, and the disc holding mechanism 90 moves the motor 114.33 forward (in the X1 direction) while holding the lid 3 and the disc 6. It is transported by the heald 111. In other words, the state shown in FIG. 20 shifts to the state shown in FIG. 19.

When the disk holding mechanism 90 is further moved forward (in the X direction), the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact. At this time, since the reversing lever 190 is restricted from rotating toward R1, the roller 103 climbs the slope 190a, and the sliding member 102 moves to the left (Y1 direction), resulting in the aforementioned "non-holding state". As shown in FIG. 22, the lid 3 is pushed into the case 2 by the biasing force of the leaf spring 94.

Then, the motor 114 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 50.
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 since there is no need to manually move the case 2 back and forth significantly, and reliable operation can be expected even under severe use by the user. In addition, since only the disc 6 and the lid 3 are pulled in without pulling the entire case 2 into the playback 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. be.

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 operations can be performed by sequentially operating the motor 124 that drives the cam drive morph 165 and the cam drive morph 165.

In addition, the disk holding mechanism 90 may be configured as shown in FIG.
In order to stop at each position shown in FIG. 9, FIG. 20, FIG. 21, and FIG. 22, the microswitches 202 to 205 shown in FIG. It is detected that the plate 109 has come into contact with the motor 1,
This is possible by programming to stop 14.

Note that, instead of relying on the mechanism in which the disk holding mechanism 90 directly holds the disk 6 as in the above embodiment, for example, the structure shown in FIG.
As shown in A) and (B), the lid 302 is formed into a frame shape,
If a case 300 that surrounds the disk 350 is used, the lid 302 and the disk 350 can be removed from the case body 301.
In order to pull out the cover, it is only necessary to hook the notch 303 as shown in the figure using, for example, a lid hooking means and pull it out.

However, in this case, from the state shown in Fig. 20 mentioned above to Fig. 21
There is no need to move to the state shown in the figure, and playback can be performed by lowering the disc in the state shown in FIG. 20. In other words,
It is also possible to provide a regeneration device that does not require the upper clamp arm 95 and the lower clamp arm 96. Further, as a method for pulling out the lid 302 from the case 301, for example, the roller 370 in FIG. It is also possible to create a configuration that brings out the following. Note that FIG. 25(A) shows the case 300 of FIG. 25(B) with the lid 302 and the disk 305 housed therein.

Effects of the Invention In the recording disc playback device of the present invention, when the user only slightly inserts the disc case into the main body of the playback device, the disc is automatically taken out from the disc case and playback becomes possible. When the recording medium is pulled out, the recording medium can be supported without interfering with the movement of the lid hooking means, and the recording medium can be smoothly pulled out.

[Brief explanation of the drawing]

Figures 1 (A) and (B) are a plan view and a sectional view, respectively, of a disk that can be used in an embodiment of the present invention, and Figures 2 and 3 are exploded perspective views, respectively, of a disk case that accommodates the disk. 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. 6(A) is a perspective view of its schematic configuration, FIG. 6(B) is a sectional view of the rail portion of the movable base, and FIG. 6(C) is a perspective view of the cam unit and lifting mechanism. FIGS. 7(A) to (C) are a plan view, a sectional view, and a front view of the lid/disk holding state of the disk holding mechanism, respectively, and FIGS. 8(A) and (B) are the same disk holding mechanism. 9 (A) and (B) are the same (plan view and sectional view of the disk holding mechanism in the non-retained state, and FIGS. 10 (A) and (B)). is also an operation explanatory diagram showing the relationship between the sliding member of the disc clamping mechanism and the clamp arm,
Figures 11 (A) to (C) are a plan view, cross-sectional view, and front view of the case expansion mechanism in the state where the case is not inserted, and Figures 12 (A) to (C) are the case expansion mechanism. A plan view, a sectional view, and a front view of the mechanism in the case insertion state, FIGS. 13(A) to 13(C) are also explanatory diagrams of the operation of the case expansion mechanism, and FIGS. 14(A) and (B) are also the same. 15 is a time chart of the cam unit, FIGS. 16 (A) to (D) are illustrations of the operation of the cam unit, and FIGS. 17 to 22 are the entire playback device. Explanatory diagram of the operation seen from above, No. 23
Figures (A) and (B) are operational explanatory diagrams showing the relationship between the support and the disc, Figures 24 (A) to (C) are operational explanatory diagrams showing the longitudinal side of the playback device, and Figure 25. (A) is a perspective view of a disk case of another embodiment, No. 25
Figure (B) is a perspective view showing the relationship between the disc case and the rollers. 1... Disc case, 2... Case body, 3...
- Lid, 6... Disc (recording medium), 13... Retaining hole (engaging part), 40... Chassis, 50... Playback device body, 51... Case insertion slot, 60... ...Case expansion mechanism, 62...Engagement member, 65...Slider, 8
0...Fixed base, 90...Disk clamping mechanism, 9
1... Movable base (transfer means), 95... Upper clamp arm, 96... Lower clamp arm, 99i100...
- Neck hanging member (lid hanging means), 107, 108... release member, 120... arm housing, 134...
Disc lifting mechanism, 160...cam unit, 180
...Support (supporting member), 200-205...Micro switch Fig. 13 (A) Fig. 14

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 recording disc reproducing apparatus using a reproducing apparatus, which includes a reproducing apparatus main body having a reproducing means, a turntable on which the recording medium is mounted, a lid latching means for latching and fixing the lid, the lid latching means and the The recording medium is transferred together and moved between a first position where the lid latching means performs a latching operation of the lid and a second position where the center of the recording medium substantially coincides with the center of the turntable. a transfer means, which is provided movably between a supported position and a non-supported position, and which moves the recording medium to the support position while the transfer means is transferring the recording medium from the first position to the second position; and a support member for supporting the recording medium up to the second position.