JPH0235380B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a recording disc reproducing device that automatically plays a disc by taking out the disc from a disc case containing a disc-shaped recording medium (hereinafter referred to as a disc). It is.

Conventional configurations and their problems Traditionally, in playback devices for high-density recording disks, such as video disks, as in Japanese Patent Application Laid-Open No. 111158/1983, a disk placed in a cylindrical disk case is manually played back. 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 this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth a lot, and 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.

Purpose of the Invention The present invention aims to provide a recording disc playback device in which the user can automatically take out the disc from the case and play it by simply inserting the case slightly into the main body of the playback device. purpose.

Composition of the Invention The recording disc playback device of the present invention has a case body which has a storage space capable of storing a disc-shaped recording medium therein, and has an opening at one end for taking out the recording medium, and a case body which can be detachably attached to the opening. A device that uses a disc case consisting of a lid that engages with the playback device body, which is equipped with a playback means having a turntable inside, and a disk case that is slightly inserted into the playback device body through an insertion opening provided on the front side of the playback device body. a case engaging means that removably fixes the case body to the playback device body in a state in which the case body is removably fixed to the playback device body, and a recording medium in the case body fixed to the case engagement means is removably held and pulled out together with the lid, and the playback device is opened. A loading means for loading a recording medium into the turntable, and a loading means for moving the loading means between the case body fixed near the insertion port and the back of the device body to place the recording medium and the lid between the case body and the playback means. The device is characterized by comprising a transport means for transporting the device to and from the location.

With this configuration, by simply inserting the disk case a little into the insertion slot of the main body of the playback device, the case body is engaged and fixed to the main body of the playback device by the case engaging means, and the loading means and the transfer means are connected. The recording medium is held between the lid and the recording medium, and the recording medium is automatically loaded onto the turntable of the playback device.

Therefore, when playing a recording medium, it is only necessary to insert the disk case a little into the main body of the device.
Because there is no need to insert it deep into the device body,
The operability during playback can be greatly improved.
At this time, since the case body is engaged and fixed to the playback device body and then transferred and loaded with the recording medium, it is possible to prevent the recording medium from coming into contact with the case body, etc., and the case body from being accidentally removed. Safe and reliable loading of media can be achieved.

Furthermore, since the recording medium is directly held between the loading means, there is no need to provide a special feeding frame or the like surrounding the recording medium in the disk case, unlike the case where a feeding roller is used as in the above-mentioned proposed example.

DESCRIPTION OF THE EMBODIMENTS Examples of the present 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 an arm housing 120. The arm housing 120 mounts the reproducing head. A fixed base 80 is fixed to the chassis 40, and an engaging member 62 serving as a case engaging means is attached to the fixed base 80 so as to be vertically movable. The fixed base 80 is further provided with a case expansion mechanism 60 for opening the opening of the case 2. The chassis 40 is further provided with a movable base 91 that is movable in the front and rear directions (X ₁ and X ₂ directions). The movable base 91 is provided with a disk holding mechanism 90 and lid hooking members 99, 100, and these constitute a retracting means for pulling the disk 6 from the case 2 onto the turntable 130 together with the lid 3.
Next, the whole will be explained in detail.

FIGS. 1 to 4 respectively show the configurations of a disk and a disk case that can be used in the recording disk reproducing apparatus according to this embodiment. 1st
In the figure, the disk 6 has a center hole 34, and is provided with a bank-like outer circumferential groove guard 33 and an inner circumferential groove guard 32. In Fig. 2, a rectangular disk case 1 is a disk case main body 2.
(hereinafter referred to as a case) and a lid 3 that is removably connected to an opening 7 provided on the front side of the case 2 in the insertion direction _X1 into the device.
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,
A disk 6 is housed within this space 5. This space 5 has the opening 7 on the insertion direction _X1 side, and is closed on the remaining three sides. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protrusions 9, 10, 11 along the three sides of the flat plate part 8.
It becomes more. An engagement hole 13 is formed in the center near the opening 7, into which a protrusion of the lid 3, which will be described later, engages, and on the left and right sides of the opening 7, engagement holes 16, into which projections of the lid 3 engage, are formed. is formed.

At the end of the lid 3, there is a flange portion 1 that closes the opening 7 of the case 2 when the lid 3 is engaged and fixed to the case 2.
8 is provided, and a notch 19 is provided symmetrically about the center line l 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 has an inclined portion 26 that engages with the release member of the lid 3.
is provided. 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. Furthermore, since the lid 3 engages with the case 2 to close the opening 7, the disk 6 is housed without falling out of the case 2.

In the detailed view of the lid 3 in FIG. 4, the shape of the side facing the disk 6 is formed, for example, into an arc with a gap b 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 reproducing 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. FIGS. 6A to 6C show the basic configuration of a recording disk reproducing apparatus. In FIG. 6A, 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 disk 6 placed on the turntable 130. Reference numeral 132 denotes a clamp, which presses the disk 6 placed on the turntable 130 into contact with the turntable 130. 40 is a chassis, and a guide 52 that guides the case 2 into the playback device main body 50;
53 is fixed. Guides 52a and 53a are guide grooves. A case expansion mechanism 60 is fixed on the chassis 40 near the case insertion opening 51. Reference numeral 66 denotes an expansion member that is supported by the fixed base 80 so as to be able to move up and down.
expand. The fixed base 80 is fixed to the chassis 40. The engaging member 62 is rotatably supported on the fixed base 80 by a shaft 74 and a bearing 63, and functions to engage with the case 2 engaging hole 13. 90 is a disk holding mechanism. Reference numeral 95 denotes 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 held between these arms. Reference numerals 99 and 100 indicate lid hooking members, which are supported by pins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91, and engage with the notch 19 of the lid 3 to latch 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. 10
7, 108 is a claw-shaped release member formed integrally with the movable base 91, and the slope 2 of the protrusion 24 of the lid 3
6 to release the engagement between the lid 3 and the case 2.

A movable base 91 of the disk holding mechanism 90 is supported by rails 45, 46, and 47 so as to be movable in the front and rear directions (X ₁ and X ₂ directions). rail 45
has V-grooves on both sides as shown in FIG. 6B, 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 does not come off the rails 45, 46, 47. The movable base 91 is fixed to the belt 111 by a connecting piece. belt 111
is hung between gears 112 and 113,
The belt 111 is driven by a motor 114 equipped with a speed reducer, and the disk holding mechanism 90 is moved. 1
20 is an arm housing, a rail 126,
The shaft 122 supports the turntable 130 so as to be movable in the left and right directions (Y ₁ and Y ₂ directions). Like the disk holding mechanism 90, the arm housing 120 is also moved in parallel over the disk 6 placed on the turntable 130 by a motor 124 and a belt (not shown).
It is configured to pick up signals.

In FIG. 6C, 180 is a support that supports the disk 6, and includes a shaft 181 and a bearing 18.
2 for vertical movement (in the M ₁ and M ₂ directions). The support 180 is provided in two parts, left and right, as shown in the figure, and in order to hold the groove guard 33 of the disk 6, the support 180 is provided with the groove guard 33 of the disk 6 in the Y ₁ and Y ₂ directions (see FIG. 6A). 3
It is constructed so that it can hold a range larger than the diameter of 3. 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 disk 6 held by the disk holding mechanism 90.

134 is 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. lift arm 142
By rotating the lift ring 136 (see FIG. 24) supported by the lift arm 142 and located at the lower part of the lifting ring 135, the disk 6 is lifted and lowered by the mounting ring 133 fixed to the lifting ring 135. The device is moved 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.

A cam unit 160 drives the support 180, the disk elevating mechanism 134, and the case expanding mechanism 60 described above. 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, supported horizontally by a shaft 179 and a bearing 163, and is supported by a spring 172.
P is biased in _one direction. Lever 167, 16
8 is the shaft 178 and bearings 170 and 17, respectively.
It is rotatably supported by 1. Each lever 162, 167, 168 is linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15). 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. In FIG. 6A, 200 to 205 are micro switches. The micro switch 200 is a switch for detecting the operation of the case expansion mechanism 60. The micro switch 201 is a switch for detecting the operation of the disk holding mechanism 90. Micro switches 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. FIGS. 7A to 7C, FIGS. 8A and 8B, FIGS. 9 and 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.
Reference numeral 92 indicates four rollers, which are rotatably supported by the movable base 91 and engaged with the rail 45 as shown in FIG. 7C. 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 attached to the claw 9 as shown in FIG. 7B.
5a is formed. Lower clamp arm 96 is rotatably supported by bearing 97 and biased by spring 98 in the direction of arrow 98a. 9
Reference numerals 9 and 100 denote lid hooking members that engage with the notches 19 of the lid 3 to latch the lid 3. Lid hanging member 99,
100 is supported by pins 105 and 106, respectively, so as to be horizontally rotatable relative to the movable base 91. In addition, cam grooves 113 and 114 provided in the sliding member 102 are provided in the lid hooking members 99 and 100.
A driven end 115, 116 is provided, respectively, which is guided by. The sliding member 102 is approximately plate-shaped,
The cam grooves 113, 114 are guided by pins 105, 109 and move approximately linearly in the direction of arrow _Y1 or _Y2 . The sliding member 102 has a roller 103 rotatably attached to the left side of the center in the figure, a protrusion 102b, and an abutting portion 102a and a spring catch 110a on the opposite side. The protrusion 102b passes through the square hole 91b raised in the movable base 91 and the contact portion 101b of the rotating member 101 (see FIG. 7C).
It is configured so that it can come into contact with the In addition, the spring hook 111 and the spring hook portion 112 of the movable base 91
A spring 110 applied between the sliding member 1
02 is always biased in the direction of arrow _Y2 . Further, the sliding member 102 is provided with a wedge-shaped portion 102c, and as shown in FIGS.
It is configured so that it can come into contact with the Rotating member 10
1 is horizontally rotatably supported on a movable base 91 by a fulcrum 101a, and is supported by a spring 104 as indicated by an arrow 1.
It is urged to rotate in the direction 04a (FIG. 7A). Further, as described above, the rotating member 101 is formed with an abutting end 101c that can abut the lid 3 in addition to the abutting portion 101b. Contact part 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, and the inclined portion 26 of the protrusion 24 of the lid 3
This is to release the engagement between the lid 3 and the case 2. Reference numeral 109 denotes an abutment plate, which is provided at a position where it can abut against 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/disc holding state". To do this, latch the lid 3 as shown in Figure 7A,
This is a state in which the disk 6 is sandwiched. In this state, the sliding member 102 is in a position closest to the right side in the figure (in the direction of arrow _Y2 ) among the three states. The lid 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.
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 in a state where the groove guard 33 of the disk 6 is clamped as shown in FIG. 7B. In this state, the claw 95a of the upper clamp arm 95 and the contact end 96a of the lower clamp arm 96 are in a position where they contact the groove guard 33. Also,
As shown in FIG. 10B, the abutting end 96a is wedge-shaped
02c, and the sliding member 102 is biased to the right in the figure (arrow _Y1 direction) by the biasing force of the spring 110. As a result, the lower clamp arm 96 moves in the direction of the arrow in FIG. 7B. It is biased in the direction of 98b and grips the groove guard 33.

The second state is the "lid holding state". this is,
As shown in FIG. 8A, the lid 3 is latched and the disk 6 is not clamped. In this state, the sliding member 1
02 is in the middle position among the three states. The lid hanging members 99, 100, the leaf spring 94, and the rotating member 101 are all in the "lid/disk holding state"
The condition is similar to that shown in FIG. 8, and the lid 3 is latched as shown in FIG. However, in this state, the sliding member 1
02 has moved from the "lid/disk holding state" to the left side of the figure ( _Y1 direction), so as shown in FIG. 10B, the wedge-shaped part 102c and the contact end 96a are no longer
are not in contact. Therefore, the lower clamp arm 9
6 is opened in the direction of arrow 98a as shown in FIG. 8B by the biasing force of the spring 98, and is in a state in which the disk 6 is not clamped.

The third state is a "non-retention state." In this state, as shown in FIG. 9, the lid 3 is not latched and the disc 6 is not clamped. Sliding member 10
2 is the most left side of the three states (Y ₁ direction)
It is located in the same position. The lid hooking members 99 and 100 have driven ends 115 and 116 that are connected to the cam grooves 113 and 116, respectively.
114 and is in the 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 101 and the protrusion 102 of the sliding member 102
b abuts against each other, and the sliding member 102 is restricted from sliding to the right ( _Y2 direction) in the figure by the biasing force of the spring 110.

In this way, the disk holding mechanism 90 can be operated in "lid/disk holding state", "lid holding state", and "non-holding state".
It can take three states. These three states are all based on the sliding direction of the sliding member 102 (Y ₁ , Y ₂ direction)
It is regulated by the position of In other words, by changing the position of the sliding member 102 in the Y ₁ and Y ₂ directions,
The disk holding mechanism 90 can be changed into three states: "lid/disk holding state", "lid holding state", and "non-holding state". However, among the above three states, in the "lid holding state", the sliding member 102 is held by the spring 1.
It can be held when it is regulated to the state shown in FIG. 8 by some means against a force of 10.

The case expansion mechanism 60 will be explained in detail.
Figure 11 A-C, Figure 12 A-C, Figure 13 A-
C is an explanatory diagram 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. Support member 6
1 is fixed to a fixed base 80. Reference numeral 62 denotes an engaging member, which includes a bearing 63 fixed to the fixed base 80.
It is supported by pins 74 so as to be vertically movable. Also, the spring 72 causes the engagement member 62 to move to the first position.
It is biased in the direction of arrow _W1 in Figure 1B. 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 . A slider 65 is slidably attached to the fixed base 80, as shown in FIG. 11C. The slider 65 has a long hole 65
a, 65b are provided, and pins 71, 7 are provided respectively.
0 engages with each other and slides linearly in the directions of arrows Y ₁ and Y ₂ in the figure. In addition, the bearing 63
As shown in FIG. 11C, the slider 65 is restrained at its center by the abutting portion 63a of the slider 65, and is configured to bend only slightly downward. Also,
The slider 65 is provided with two engaging portions 69,
With this configuration, the expanding member 66 is connected to the slider 65.
By acting on the right side of the figure (in the direction of arrow Y ₂ ), it rotates in the direction of arrow V ₂ in the figure, and by acting on the left side of the figure (in the direction of arrow Y ₁ ), it rotates in the direction of arrow V ₁ . It will rotate. Further, a spring 73 is applied between the slider 65 and the fixed base 80 as shown in the figure, and always urges the slider 65 to the right side (in the direction of arrow _Y2 ) in the figure. Also, 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 expansion mechanism 60. Next, how does this case expansion mechanism 60 work with the case 2?
Expanding the case 2, it will be explained how to engage the case 2 so as to substantially fix it to the playback device. When the case 2 is not inserted into the playback device, the case expansion mechanism 60
is in the state shown in FIGS. 11A to 11C. 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 is restricted to the position shown in FIGS. 11B and 11C. The case 2 is inserted into the insertion opening 5 of the playback device main body 50 in the case expansion mechanism 60 in this state.
1 and is guided and inserted into the case guide 75.

13A to 13C show the process of inserting the case 2 into the case expansion mechanism 60. 13th
FIG. A shows the case expansion mechanism 60 in the same state as FIGS. 11A to 11C. When the case 2 is inserted into the case expansion mechanism 60 in this state as shown in the figure in the direction of _arrow Case 2 is expanded as shown in FIG. 13B. Then, when the case 2 is further inserted, the contact end 62a of the engagement member 62 comes into contact with the open end of the case 2, and the engagement part 62 rotates in the _W2 direction in the figure.
As shown in FIG. 13C, the engaging end 62b of the engaging member 62
engages with the engagement hole 13 of the case 2. In this case, the notch 65c of the slider 65 and the engaging member 62
is no longer in contact with the slider 65 and the spring 7
3, it slides to the right ( _Y2 direction) as shown in FIG. 12B. In the state shown in Figure 12B,
As shown in the figure, the expansion member 66 is rotated in the _V2 direction so that it does not interfere with the removal of the disk 6 from the case 2. Figures 12 A to C show the state of case 2 at this time, that is, expanded case 2.
The state is shown by a dashed line. In this state,
The engaging member 62 is moved by the slider 65 as shown in FIG. 12B.
It is regulated so that it does not rotate in the W ₁ direction as shown in the figure. Next, for example, if the abutting end 76 of the slider 65 is moved to the left side ( _Y1 direction) in the figure by some means, the slider 65 moves in the direction of the arrow _Y1 ,
When the notch 65c comes to the position of the engaging member 62 as in the state shown in _FIG . The engagement between the hole 13 and the engagement member 62 is released.

In this way, 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 opened and closed. The engagement can be released.

Further, in this embodiment, as shown in FIGS. 11 and 12, the micro switch 200 is provided at a position where it can come into contact with the slider 65, so that the case 2 is inserted into the expansion mechanism 60 and the case 2 is engaged. When the slider 65 is engaged and the slider 65 is operated, it is possible to detect that the case 2 is opened and engaged by the microswitch 200. In addition, 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 and the playback device 50 It is in a substantially fixed state.

Further, the micro switch 200 detects whether or not the case 2 is engaged with the engaging member 62, and a lamp 500 (FIG. 5) serving as a notification means for notifying this detection state is connected to the main body of the playback device. 50. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp 500 includes an engaging member 6
2 is connected so that it continues to light up while it 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 explaining the movement of the lever. In FIG. 14, a cam 161 is horizontally rotatably supported by a shaft 176, and the power of a cam drive motor 165 is transmitted via a belt 175 and a worm 166, so that the cam 161 can rotate in both forward and reverse directions.
The lever 162 is attached to the shaft 179, and the lever 167,
168 are rotatably supported by the shafts 178, and are provided with interlocking members (not shown) that engage with the grooves 400 of the cam 161. When the cam 161 rotates, the cams 168 interlock with the cam grooves 400 and operate. do. 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. 6C), and by rotating the shaft 181, The support 180 is raised and lowered. The lever 162 is biased in the _P1 direction by a coil spring 163, and therefore the interlocking member 404 provided on the lever 162 is always in the cam groove and biased in the _P1 direction. The engagement pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 65 described above. The lever 162 is rotated by the cam 161, moves the slider 65 in the _Y1 direction against the spring 73, and returns the slider 65 to the state shown in FIG. 14A.

The cam groove 400 will be explained using FIG. 16A. The cam groove 400 is connected to the cam paths 405a, 40
5b, 405c, and 405d.
The cam groove diameter l ₁ is larger than l ₂ . Lever 1
The cam grooves 400 that drive the cam grooves 67 and 168 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. Figure 14 shows
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. 16A. 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. 14B, and will not move further. This state is the state shown in FIG. 16B. The engagement pin 169 is biased by the coil spring 163 so as to come into contact with the abutment member 76.
The interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is the first
This is the t ₁ state in FIG. 5 (hereinafter, the state will be indicated as t _x in the timing chart in FIG. 15). The micro switch 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 161 rotates in the _A2 direction shown in FIG. 14B. The levers 167 and 168 are moved as shown in FIG. 14B according to the timing chart of FIG. 15 described above.
It is pulled in the _B2 direction, and the support 180 and lifting mechanism 134 rise to support the disk 6 above the turntable 130 (states t ₂ and t ₃ ). This state is the state shown in FIG. 16C. At this time, the cam groove diameter
Since l ₂ is smaller than l ₁ , the lever 162 moves in the P ₂ direction. 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 state shown in FIG. 16D is achieved. When the cam 161 rotates further than in FIG. 16C, the interlocking member 404 moves between the cam paths 405a and 4 as shown in FIG.
05c, the lever 162 is urged to rotate in the _P1 direction by the spring 163, and in this state, the abutting member 76 engages the engagement pin 16.
9, and as shown in FIG. 16D, the engagement pin 169 is in a state where it can further rotate in the _P1 direction. Therefore, the interlocking member 404 is connected to the cam path 40
When the cam 161 is rotated in the _A2 direction in this state, the interlocking member 404 enters the cam path 405a. When the cam 161 further rotates, the lever 16
2 is the lever 168 again in the _P1 direction shown in FIG.
moves in _B1 direction. By moving the lever 162 in the _P1 direction, the slider 65 is moved to the state shown in FIG.
Release the state of engagement (t ₄ state). At the same time, the lever 168 moves in the _B1 direction shown in FIG. 14, and the support 180 descends ( _t4 state).
When the cam 161 further rotates, the lever 167 moves in the _B1 direction in FIG. 14, lowers the elevating mechanism 134, and places the disk 6 on the turntable 130 (state _t5 ). When the cam 161 further rotates, it enters the t ₆ state, and the position is detected by a rotary switch (not shown) and the motor 165 is de-energized, thereby stopping the cam 161 (t ₆ state). This state is shown in Figures 14A and 16.
In the state shown in Figure A, 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 engagement state of the slider 65 is released and the case 2 is expanded as described above. It is almost fixed to the opening mechanism ( _t7 state). This is the situation shown in FIGS. 9 and 16B. The micro switch 200 detects this state, and the cam 16
The motor 165 is energized so that the motor 165 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 _B2 direction in FIG. The lever 168 is pulled and the support 180 rises to support the disk 6 (state _t9 ). Furthermore, cam 16
1 rotates, the lever 167 moves in the _B1 direction and lowers the elevating mechanism 134 ( _t10 state). After that, the disk holding mechanism 90 holds the disk 6.
is collected into case 2. During that operation, cam 1
61 rotates, lever 168 moves in direction _B1 ,
Support 180 falls (t ₁₁ state). When the cam 161 further rotates, the interlocking member 4
04 is the rear cam path 4 facing the branching member 403b.
05b, the state shown in FIG.
It will be in the state shown in Figure A.

To briefly summarize each state in Fig. 15, t ₀ is standby state, t ₁ is case inserted state, t ₂ is lift raised position, t ₃ is support raised position, t ₃ ′ is slider movement start, t ₄ is Slider lock (case removal),
t ₅ is the lift lowered position, t ₆ is the standby state, t ₇ is the case inserted, t 8 is the lift raised position, t ₉ is the support raised position, _{t 10 is} the lift lowered position, t ₁₁ is the support lowered position, t ₁₂ indicate the slider lock (case release).

Operation Next, how the entire reproducing apparatus according to this embodiment operates with the above configuration will be explained step by step. 17 to 22, FIGS. 23A and 23B, and FIGS. 24A to 24C are all schematic explanatory diagrams showing how the various parts of the reproducing apparatus are operated 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 disk 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 lowered position as shown in FIG. 23A.

Next, the case 2 passes through the insertion port 51 into the guide 5.
2 and 53 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 opened by the engagement member 62. They are engaged and become substantially fixed to the playback device main body 50.

Next, the micro switch 200 shown in FIG. 6 detects this state, and the motor 114 operates to drive the belt 111, thereby moving the disk holding mechanism 90 forward in the figure (in the _X1 direction). Ru.
Then, as shown in FIG. 18A, the disk holding mechanism 90 enters the expanded case 2, the rotating member 101 comes into contact with the lid 3, the restriction on the sliding member 102 is released, and the sliding member 102 is released. 102 slides to the right ( _two directions of arrow Y), and as described above, the disk holding mechanism 9
0 is the "lid/disc holding state". At this time, the contact portion 102a of the sliding member 102 contacts the micro switch 201, and the disk holding mechanism 90
is detected to be in the "lid/disk holding state" at this position. Then, the motor 114 rotates in reverse, and the disk holding mechanism 90 moves backward in the figure (X ₂ direction).
begins to be transferred to 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 transporting the disk holding mechanism 90 just by moving it.

Here, FIG. 18B shows the state when an empty disk case without a lid 3 is inserted. At this time, since there is no lid 3, the contact end 101c of the rotating member 101 is not pushed by the lid 3, and therefore,
Since the sliding member 102 does not move to the right (Y direction), the contact portion 102a of the sliding member does not contact the micro switch 201, and the absence of the lid 3 is detected. If this state continues for a certain period of time or more, it is determined that an empty case has been inserted, and the apparatus does not proceed to the next step of nipping and transporting the recording disk.

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, as shown in this figure, disk 6 is inserted halfway.
When the support 180 is pulled out, the support 180 rises as shown in FIG. 23B, and the group guard 3 of the disk 6
Hold 3. At this time, the support 180 only touches the groove guard 33, so the disk 6
will not damage the signal surface.

Furthermore, the disk holding mechanism 90 is located at the rear (X ₂ direction).
20, the center boss 131 at the center of the turntable 130 and the center hole 34 of the disk 6 come to approximately correspond to each other. Even in this state, the support 180 holds the group guard 33 of the disk 6.
It is configured as shown in the figure.

Next, the central mounting ring 133 is raised by the operation of the cam unit 160 and holds the central portion of the disk 6. FIG. 24A is a diagram explaining this state from the side. Next, as shown in FIG. 24B, the support 180 is lowered by the operation of the cam unit 160. Next, when the disk holding mechanism 90 is further moved backward ( _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 ( _Y1 direction) and enters the above-mentioned "lid holding state". In other words, the disk 6 is not held by the disk holding mechanism 90, which is the state shown in FIG. In this state, the disk 6 is held by the mounting ring 133 in the center as shown in FIG. 24C. After this, the mounting ring 13 is moved by the operation of the cam unit 160.
3 is lowered, disk 6 is placed on turntable 1.
30. Next, cam unit 16
0 operates, and the engaging member 6 of the case expansion mechanism 60
2 and the case 2 is released, and the empty case 2 can be removed from the playback device.

In this state, the turntable 130 rotates, the arm housing 120 scans over the disk 6, and reproduction is performed. At this time, since the lid 3 is held from below by the lid holding members 41 and 42 as shown in FIG. 21, it hangs down, for example, as shown in FIG. 21B while the arm housing 120 is traveling.
The state in which the lid 3 is held by the lid holding members 41 and 42 is shown. The lid holding members 41 and 42 are respectively attached to the chassis 4.
When the lid 3 is pulled out from the case body and transported to the innermost part of the device body, the lid 3 is held from below by lid holding members 41 and 42. It is maintained stably. As a result, even if there is vibration from the outside, it will not fall off or hang down, and will not get in the way of the clamping means or the transfer means.

When the playback is finished and the user inserts the empty case 2 into the playback device, the case expansion mechanism 6 opens.
The engagement member 62 of No. 0 engages with the case 2, and the case 2 becomes substantially fixed to the playback device main body 50. The micro switch 200 detects this state in the same manner as described above, and this time the cam unit 160
operates, the mounting ring 133 rises, and the 24th
It will be in the state shown in Figure C.

Next, the motor 114 drives the belt 111, and this time the disk holding mechanism 90 moves forward (arrow
_X1 direction) and transitions to the state shown in FIG. 24B. Next, the support 180 connects to the cam unit 1.
It rises due to the operation 60 and becomes the state shown in FIG. 24A. Thereafter, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disk holding mechanism 9
0 is transported forward (in the _X1 direction) by a motor 114 and a belt 111 while holding the lid 3 and disk 6. In other words, from the state in Figure 20 to the first
This results in a transition to the state shown in Figure 9.

Furthermore, the disk holding mechanism 90 is located at the front ( _X1 direction).
When the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact with each other. At this time, since the reversing lever 190 is restricted from rotating to _R1 , the roller 1
03 climbs the slope 190a, and the sliding member 102 moves to the left ( _Y1 direction), resulting in the above-mentioned "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 is reversely rotated again, and the disk holding mechanism 90 is moved rearward (in the _X2 direction) and returned to the position shown in FIG. After this, the cam unit 160 operates again, and the engagement between the case 2 and the engagement member 62 of the case expansion mechanism 60 is released, the disk 6 is housed in the case 2, and the lid 3 is moved from the case 2. Case 2 is engaged with Case 2.
can be taken out from the playback device main body 50.

In this way, the user only needs to slightly insert the case 2 into the main body 50 of the playback device, and the disc 6
The disc 6 is automatically taken out of the case 2 to enable playback, and the disc 6 is 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. Also, since only the disk 6 and the lid 3 are pulled in without pulling the entire case 2 into the playback device main body 50, the playback device main body 50 is lower than when the entire case 2 is pulled in.
It has the advantage that it can be made thinner.

The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. That is, by sequentially operating the motor 114 that drives the disk holding mechanism 90, the motor 124 that drives the arm housing 120, and the cam drive motor 165 using a microcomputer and a normal control circuit, the above is achieved. You can do something like this.

Further, the disk holding mechanism 90 may be
In order to stop the disk at each position shown in FIGS. This is possible by detecting that the contact plate 109 has abutted and programming the motor 114 to stop.

Note that, as in the above embodiment, the disk holding mechanism 9
0 does not directly hold the disk 6, but if a case 300 is used in which the lid 302 is formed into a frame shape and surrounds the disk 350, as shown in FIGS. 25A and 25B, for example, it is possible to In order to pull out the lid 302 and the disk 350, the notch 3 as shown in the figure is inserted, for example, by a lid hooking means.
All you have to do is hook 03 and pull it out. However, in this case, there is no need to move from the state shown in FIG. 20 to the state shown in FIG. 21, and reproduction can be performed by lowering the disk in the state shown in FIG.
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. In addition,
In FIG. 25A, the case 300 in FIG. 25B is the lid 30.
2 and a disk 350 are shown housed.

Effects of the Invention As described in detail above, according to the present invention, the case body is inserted into the playback device body by the case engagement means in a state where the disk case is slightly inserted from the insertion opening provided on the front side of the device body. The recording medium in the case body, which is engaged and fixed in a removable manner, is removably held by a loading means and pulled out to be loaded onto a turntable of a playback means,
The apparatus is characterized by comprising a transfer means for moving the loading means between the vicinity of the insertion port and the inner part of the apparatus main body to transfer the recording medium and the lid between the case main body and the position of the playback means. Therefore, by simply inserting the disk case slightly into the insertion slot of the main body of the playback device, the case main body is engaged and fixed, the recording medium is clamped by the loading means, and the lid and the recording medium are separated by the transport means. The recording medium is then automatically loaded onto the turntable of the playback device.

Therefore, when playing a recording medium, it is only necessary to insert the disk case a little into the main body of the device.
Because there is no need to insert it deep into the device body,
The operability during playback can be greatly improved.
At this time, since the recording medium is transferred and loaded after the case body is engaged and fixed to the playback device body, it is possible to prevent the recording medium from coming into contact with the case body, etc., and to prevent the case body from accidentally coming off. Safe and reliable loading of media can be achieved.

Furthermore, since the recording medium is directly held between the loading means, unlike the case where a feed roller is used, there is no need to provide a special frame for feeding the disk case surrounding the recording medium.

Furthermore, it detects whether the case body is fixed to the playback device body or not, and whether or not a recording medium is being held between the playback device and detecting whether the case body is fixed and whether the recording medium is being held. Since the loading means can be moved by the transporting means when it is detected that the loading means has been loaded, safety can be further improved.

In addition, since it is equipped with an engagement state notification means that detects whether or not the case body is in a fixed state to the playback device main body and notifies the operator whether or not the case body is in a fixed state. The operator can be informed in an easy-to-understand manner whether or not the disk case can be taken in and taken out, thereby further improving operability.

[Brief explanation of drawings]

1A and 1B are a plan view and a sectional view, respectively, of a disk that can be used in one embodiment of the present invention, and FIG.
3 and 3 are respectively a cutaway exploded perspective view and an assembled perspective view of the disk case that houses the disk, and FIGS. 4A to 4C are a front view, top view, and side view of the lid of the disk case, 5 is an external perspective view of an embodiment of the present invention, FIG. 6A is a perspective view of its schematic configuration, FIG. 6B is a sectional view of the rail portion of the movable base, and FIG. 6C is a cam unit thereof. and a perspective view of the elevating mechanism, FIGS. 7A to 7C are a plan view, a sectional view, and a front view of the disk holding mechanism in the lid/disk holding state, and FIGS. 8A and B are respectively the same disk holding mechanism. 9A and 9B are a plan view and a sectional view of the disk holding mechanism in a non-holding state, and FIGS. 10A and 10B are a plan view and a sectional view of the disk holding mechanism in a sliding state. An operation explanatory diagram showing the relationship between the member and the clamp arm,
11A to 11C are respectively plan views, cross-sectional views, and front views of the case expansion mechanism in the case non-insertion state, and FIGS. 12A to 12C are respectively top views of the case expansion mechanism in the case insertion state. , a sectional view and a front view, FIGS. 13A to 13C are explanatory diagrams of the operation of the case expansion mechanism, FIGS. 14A and B are explanatory diagrams of the operation of the cam unit, and FIG. 15 is a time chart of the cam unit. Figure 16 A-D
17 and 1 are explanatory diagrams of the operation of the same cam unit.
Figure 8 A, B, Figure 19, Figure 20, Figure 21 A,
B and FIG. 22 are also explanatory diagrams of the operation of the entire playback device seen from above, FIGS. 23A and B are explanatory diagrams of the operation showing the relationship between the support and the disk, and FIGS. 24A to C are the same diagrams. FIG. 25A is a perspective view of a disk case of another embodiment, and FIG. 25B is a perspective view showing the relationship between the disk case and rollers. 1...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 slot, 60...
Case expansion mechanism, 62... engaging member (case engaging means), 62a... abutting end, 62b... engaging end,
65...Slider, 80...Fixed base, 90...
... Disc clamping mechanism (retracting means), 91 ... Movable base, 95 ... Upper clamp arm, 96 ... Lower clamp arm, 99, 100 ... Lid retaining member (lid retaining means), 107, 108 ... ...Release member, 120
...Arm housing, 134...Disk lifting mechanism, 160...Cam unit, 180...Support, 200-205...Micro switch.

Claims (1)

[Scope of Claims] 1. A case body that has a storage space inside which can store a disc-shaped recording medium and has an opening at one end for taking out the recording medium, and a case body that is removably engaged with the opening. A recording disc playback device using a disk case consisting of a lid, a playback device main body having a playback means having a turntable inside, and a playback device body with the disk case slightly inserted from an insertion opening provided on the front side of the playback device main body. a case engaging means for removably fixing the case body to the playback device body in an inserted state; and a case engaging means for detachably fixing the recording medium in the case body fixed to the case engaging means together with the lid. loading means for clamping and pulling out the recording medium and loading the recording medium onto the turntable of the playback means; and loading means for loading the recording medium between the case body fixed near the insertion opening and the inner part of the device body. A recording disk reproducing apparatus comprising: a transport means for moving the recording medium and the lid between the case body and the position of the reproducing means. 2. The case engaging means detects whether or not the case body is in a fixed state to the playback device main body, and when it is detected that the case body is in the fixed state, the loading means is activated by the transporting means. 2. The recording disk reproducing apparatus according to claim 1, further comprising a detection means for enabling movement of the recording disk. 3. The case engagement means is an engagement state notification means for detecting whether or not the case body is in a fixed state to the playback device main body, and notifying the operator whether or not the case body is in the fixed state. A recording disc reproducing apparatus according to any one of claims 1 to 2, characterized in that the recording disc reproducing apparatus is equipped with the following. 4. The case engaging means has a cam provided in a cam unit that operates an elevating mechanism for placing the recording medium on the turntable or lifting it from the turntable. A patent characterized in that it is provided with a sliding member capable of reciprocating between the two positions, and a means for detecting that the sliding member is in a latching position to enable transport by a transporting means. A recording disk reproducing apparatus according to any one of claims 1 to 3. 5. A patent characterized in that the holding means includes a holding means for holding a recording medium, and a means for detecting that the holding means is holding the recording medium and enabling transfer by a transfer means. A recording disk reproducing apparatus according to any one of claims 1 to 4.