JPH0235381B2 - - 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 significantly, and the loading mechanism is not designed to operate perfectly even under severe user use. There were various problems such as difficulty in configuring the system.

Therefore, an attempt was made to create a playback device that would automatically take out the disk from the case and play the disk just by slightly inserting the case into the case. As a configuration, we have considered one that includes a lid latching means for latching 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, since the lid latching means is latched by the pushing force of the disc case, due to variations in the pushing force of the disc case by the user, the latching of the lid may be incomplete, and the latching may be incomplete. During this time, the next operation may start and damage the playback device or disk.

Purpose of the Invention This invention enables the user to automatically take out the recording medium from the case by slightly inserting the case into the main body of the playback device, and to enable playback. Regardless of the degree of
It is an object of the present invention to provide a recording disk reproducing device that allows the recording medium to be taken out from the case without malfunction.

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. In a device using a disk case consisting of an engaging lid, the device body is equipped with a playback means having a turntable inside, and the disk case is slightly inserted from the insertion port provided on the front side of the device body. A lid release means is provided near the insertion slot to release the engagement between the opening of the case body and the lid, and a recording medium inside the case body is removed from the opening of the case body after the engagement between the opening and the lid is released. The clamping means that can be freely clamped and pulled out and loaded onto the turntable of the reproduction means, and the lid inside the case body, which has been disengaged from the opening and the lid, can be releasably latched and pulled out during the reproduction operation. The supporting lid latching means, the clamping means, and the lid latching means are moved between the vicinity of the insertion opening and the back of the device body to move the recording medium and the lid to the positions of the case body and the playback means. A transfer means for transferring between the two, a clamping means and a lid latching means, and a drawer position for pulling out the recording medium and the lid from the case body near the insertion opening, and a reproducing means for the recording medium at the back of the device body. It is provided with a transfer control means that controls the transfer means to stop at three positions: a loading position for loading, and a standby position between these two positions and close to the withdrawal position.

With such a configuration, the lid is released by the lid release means just by slightly inserting the disk case into the insertion opening of the main body of the playback device, and the clamping means and the lid latching means are moved from the standby position to the pull-out position. Then, the lid and the recording medium are sandwiched, and then the lid and the recording medium are transferred to a loading position, and the recording medium is automatically loaded onto the turntable of the playback device. After playback, the lid and recording medium are transferred from the loading position to the pull-out position and stored in the case body. Thereafter, by moving the clamping means and the lid latching means to the standby position and stopping them, the next disk case insertion standby state can be achieved.

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.

Furthermore, since the recording medium is directly clamped by the clamping 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 rollers are used as in the above-mentioned proposed example.

In this way, the clamping means and the lid latching means are kept in standby position, and when the disk case is inserted into the main body of the playback device, they are brought to the pull-out position and the lid is latched. Therefore, the lid can be reliably latched regardless of the degree of insertion force of the user into the disk case. Furthermore, since the disk case is made to stand by at a position close to the pull-out position, it takes less time to move to the pull-out position after inserting the disk case, and the recording medium can be loaded quickly.

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 is equipped with a playback head. A movable base 91 is installed on _the chassis 40 so as to be movable back and forth (in the directions of arrows X ₁ and A pair of lid latching members 99 and 100 serving as a latching means are provided. The lid hooking members 99, 100 are horizontally rotatable. The movable base 91 is driven by a motor 114, and further includes an upper clamp arm 95 and a lower clamp arm 9 that clamp the lid 3 and the disk 6.
6 is installed. These movable bases 91
The motor 114 and the clamp arms 95 and 96 constitute a transport means for transporting the lid 3 and the disk 6. The stop position of movable base 91 is regulated by micro switches 200-205. These microswitches 200 to 205 constitute a transfer control means. 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.

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 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. 95 is an upper clamp arm, which is formed integrally with the movable base 91. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down, and the disc 6 is 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.

Claw-shaped release members 107 and 108 are integrally formed with the movable base 91 and 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.

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 bottom 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 be rotated by the power of a cam drive motor 165 via a worm 166. 16
2 is a lever, a shaft 179, a bearing 163
It is supported horizontally rotatably by a spring 172, and is urged in the _P1 direction by a spring 172. Lever 167,1
68 are the shaft 178 and the bearings 170 and 1, respectively.
It is rotatably supported by 71. Each lever 162, 167, 168 has a cam 161
It is linked to a cam 161 so as to operate according to the cam diagram (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. 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 are supported by pins 105 and 106, respectively, so as to be horizontally rotatable relative to the movable base 91. Additionally, cam grooves 113 and 11 provided in the sliding member 102 are provided in the lid hooking members 99 and 100.
4 are provided with driven ends 115 and 116 respectively. The sliding member 102 is approximately plate-shaped, and the cam grooves 113 and 114 are connected to the pins 105 and 109.
It moves approximately linearly in the direction of arrow _Y1 or _Y2 guided by. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure, and a protrusion 102b is provided, and a contact portion 102 is provided on the opposite side.
a and a spring hook 110a. Protrusion 102
b is a contact portion 101b of the rotating member 101 (FIG. 7C) through a square hole 91b drilled in the movable base 91.
(see). Further, the sliding member 102 is always urged in the direction of arrow _Y2 by the spring 110 applied between the spring hook 111 and the spring hook portion 112 of the movable base 91. Further, the sliding member 102 has a wedge-shaped portion 10.
2c, and 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 FIGS. 10A and 10B. The rotating member 101 is horizontally rotatably supported by the movable base 91 at a fulcrum 101a, and is urged by a spring 104 to rotate in the direction of an arrow 104a (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. The contact portion 101b has a sloped shape as shown in the figure.

Reference numerals 107 and 108 are release members provided at both ends of the movable base 91, 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 in the figure (in the direction of arrow _Y2 ) among the three states. The lid retaining members 99, 100 are in a position where the lid 3 is restricted as shown in the figure, as the driven phlegm 115, 116 are guided by the cam grooves 113, 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 state shown in FIG. 2 is the "lid holding state". This is a state in which the lid 3 is latched and the disk 6 is not clamped as shown in FIG. 8A. In this state, the sliding member 102 is in an intermediate position among the three states.
The lid latching members 99, 100, the leaf spring 94, and the rotating member 101 are all in the same state as the "lid/disk holding state", and the lid 3 is latched as shown in FIG. However, in this state, the sliding member 102 has moved from the "lid/disk holding state" to the left side ( _Y1 direction) in the figure, so it is not the same as in Fig. 10B.
As shown, the wedge-shaped portion 102c and the abutting end 9
6a is not in contact. Therefore, the lower clamp arm 96 is opened in the direction of the arrow 98a as shown in FIG.

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 101b and the protrusion 10 of the sliding member 102
2b abut 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. Furthermore, the slider 65 is restricted at its center by the abutting portion 63a of the bearing 63, as shown in FIG. 11C, and is configured to flex only slightly downward. Further, the slider 65 is provided with two engaging portions 69, and with this configuration, the expanding member 66 moves in the direction indicated by the arrow V ₂ in the figure when the slider 65 acts on the right side (arrow Y ₂ direction) in the figure. direction, and also to the left side of the figure (arrow Y ₁
direction), it rotates in the direction of arrow _V1 . Additionally, a spring 73 is applied between the slider 65 and the fixed base 80 as shown in the figure, and the slider 65 is moved to the right side of the figure (in the direction of arrow _Y2 ).
is always encouraged. Further, 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 expansion mechanism 60. Next, how does this case expansion mechanism 60 work with the case 2?
Explanation will be made on how to expand the case 2 and 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 case expansion mechanism 60 in this state through the case insertion opening 51 of the playback device main body 50 and guided by the case guide 75.

13A to 13C show the process of inserting the case 2 into the case expansion mechanism 60. 13th
FIG. 11A 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 contacts the open end of the case 2, and the engagement member 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 expansion mechanism 60 of this embodiment
has a means for expanding the case 2 and a means for engaging the case 2, and furthermore, by moving the slider 65, the engagement with the case 2 can be easily 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 on shafts 178,
Further, an interlocking member (not shown) that engages with the cam groove 400 of the cam 161 is provided, and when the cam 161 rotates, the cam 161 operates in conjunction with the cam groove 400. 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 _t1 state in Figure 5 (hereinafter, the state will be indicated as _tX in the timing chart in Figure 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 abutment 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 connecting member 404 enters the cam path 405a.
When the cam 161 further rotates, the lever 162 moves in the P ₁ direction shown in FIG. 14, and the lever 168 moves in the B ₁ direction.
move in the direction. By moving the lever 162 in the _P1 direction, the slider 65 is moved to the first position.
4. The state shown in FIG. 4A is established, and the state in which the engagement member 62 engages the case 2 is released ( _t4 state). At the same time,
The lever 168 moves in the _B1 direction shown in FIG.
Support 180 falls (t ₄ state). When the cam 161 further rotates, the lever 167 moves as shown in FIG.
B Move in _one direction and lower the lifting mechanism 134,
The disk 6 is placed on the turntable 130 ( _t5 state). When the cam 161 further rotates, the cam 161 enters the t ₆ state, and when its position is detected by a rotary switch (not shown) and the motor 165 is de-energized, the cam 161 stops (t ₆ state). This state is the state shown in FIGS. 14A and 16A, and 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 in Figures 9 and 16B. The micro switch 200 detects this state, and the cam 161
The motor 165 is energized so that it 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 161
When rotates, the lever 167 moves in the _B1 direction,
The lifting mechanism 134 is lowered ( _t10 state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During its operation, cam 16
1 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 detachment),
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 bottom position, t ₁₂ each indicates a slider lock (case release).

Operation Next, how the main body of the 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 at a standby position slightly in front of the center of the turntable 130 and close to the drawn-out position, as shown in the figure. Disk holding mechanism 90
is in the "non-retention state" mentioned above. 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). , stops in the pulled out position. Then, as shown in FIG. 18, the disk holding mechanism 90 is placed inside the expanded case 2.
enters, the rotating member 101 comes into contact with the lid 3, the restriction of the sliding member 102 is released, the sliding member 102 slides to the right (arrow Y ₂ direction), and the disk holding mechanism 90 is moved as described above. is "lid/disc holding state"
becomes. At this time, the contact portion 10 of the sliding member 102
2a comes into contact with the micro switch 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 begins to be moved rearward in the figure (in the _X2 direction). At this time, the roller 103 provided on the sliding member 102 and the slope 190b of the reversing lever 190 come into contact with each other, but since the reversing lever 190 is rotatable in the direction of arrow _R2 in FIG. Just do
There is no problem in transferring the disk holding mechanism 90.

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 groove 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 groove 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 front. 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 (in the X ₂ direction) and stops at the loading position, the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 and the contact member 4
3 are in contact with each other, and the sliding member 102 is on the left side (Y ₁
The lid is held in 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. Thereafter, when the mounting ring 133 is lowered by the operation of the cam unit 160, the disk 6 is placed on the turntable 130. Next, the cam unit 160 operates and the case expansion mechanism 6
The engagement between the engagement member 62 of No. 0 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, the lid 3 does not hang down and come into contact with, for example, the arm housing 120 while traveling. FIG. 21B shows the state in which the lid 3 is held by the lid holding members 41 and 42. The lid holding members 41 and 42 are respectively fixed at left and right positions on the chassis 40, and when the lid 3 is pulled out from the case body and transported to the deep part of the device body, the lid 3 is moved to the left and right positions on the chassis 40. 42 from below and stably held. 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, there is no need to manually move the case 2 back and forth, making it convenient to use, and reliable operation can be expected even when the user uses it under heavy loads. 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 in 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 of pulling out the lid 302 from the case 301, for example, the roller 3 shown in FIG.
As shown in 70, it is also possible to have a configuration in which the cover 302 is brought into contact with the cover 302 and rotated in the direction of the arrow in the figure by some driving means to pull out the cover 302. In addition, in FIG. 25A, the case 300 in FIG. 25B is replaced by the lid 302.
and a state in which the disk 350 is housed.

Effects of the Invention As detailed above, according to the present invention, when the disk case is slightly inserted from the insertion opening provided on the front side of the device main body, the opening of the case main body is connected to the lid by the lid hooking means. The recording medium in the case body is detachably held by the holding means, pulled out and loaded onto the turntable of the playback means, and the lid is removably latched by the lid latching means. The holding means and the lid latching means are moved between the vicinity of the insertion slot and the back of the device body, and the recording medium and the lid are moved between the case body and the reproduction means. The clamping means and the lid latching means are moved between a drawer position near the insertion opening, a loading position at the back of the device body, and between these two positions and the drawer. The device is characterized in that the transfer means is controlled so as to stop at three positions, including a standby position close to the main body of the playback device. The lid is released by the lid release means, the recording disk is clamped by the clamping means, the lid and the recording medium are transported by the transporting means, and the recording medium is automatically loaded onto the turntable of the reproducing apparatus.

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.

Furthermore, since the recording medium is directly clamped by the clamping 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 disk.

Furthermore, the clamping means and the lid latching means are kept in standby position, and when the disk case is inserted into the main body of the playback apparatus, they are picked up at the pull-out position and the lid is latched. The lid can be reliably latched regardless of the degree of insertion force of the user into the disk case. Moreover,
Since the disk case is placed on standby at a position close to the pull-out position, it takes less time to move to the pull-out position after inserting the disk case, and the recording medium can be loaded quickly.

[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 to 20, FIGS. 21A and B, and 22 are explanatory diagrams of the operation of the same cam unit as seen from above, and FIGS. 23A and B are the same. Operation explanatory diagram showing the relationship between the support and the disk, Figures 24 A to C
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, 65... Slider, 80... Fixed base, 90... Disk clamping mechanism, 91... Movable base (transfer means), 9
5... Upper clamp arm, 96... Lower clamp arm, 99, 100... Lid hanging member (lid hanging means),
107, 108...Release member, 120...Arm housing, 134...Disc lifting mechanism, 16
0...Cam unit, 180...Support, 20
0-205...Micro switch (transfer control means).

Claims (1)

[Scope of Claims] 1. 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 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 the disk case slightly inserted through an insertion opening provided on the front side of the device main body. a lid release means provided near the insertion opening so as to release the engagement between the opening of the case body and the lid in a state where the lid is disengaged from the opening of the case body; holding means for removably holding and pulling out the recording medium inside the case body and loading it onto the turntable of the playback means; a lid latching means for removably latching the lid and supporting it during a reproducing operation by pulling it out; and arranging the clamping means and the lid latching means near the insertion opening and at the back of the main body of the apparatus. a transfer means for transporting the recording medium and the lid between the case body and the position of the playback means; A drawer position where the recording medium and the lid are pulled out from the case body nearby, a loading position where the recording medium is loaded into the playback means at the back of the device body, and a position between these two positions and when the drawer is pulled out. 1. A recording disk reproducing apparatus comprising: a standby position close to the recording disk reproducing apparatus; and a transfer control means for controlling the transfer means so as to stop the transfer means at three positions.