JPS61211869A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To produce no problem even when an user erroneously operate, by having a detecting means for a presence of a cover when a disk case is engaged by an engaging means, an engagement releasing means for releasing an engaging condition of the disk case and the cover and a control means for controlling the detecting means and the engagement releasing means. CONSTITUTION:A case engagement opening mechanism 60 is fixed on a chassis in the vicinity of a case inserting opening 51. An opening member 66 is rotatably supported in vertical direction on a fixed base 80. A case 2 is opened by a supporting member 61 fixed on the fixed base 80. The case is engaged by an engaging member 62. When a cover is not engaged with the case, the light 88B of an LED 88 is situated at a position is which a phototransistor 88 received it. When the case 2 is engaged with the cover 3, the cover interrupts the light of the LED 88 as shown by an arrow 88A.

Description

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

2. Description of the Related Art Traditionally, in playback devices for high-density recording discs, such as video disks, discs housed in a cylindrical disk case have been manually inserted into the back of the playback device, as disclosed in Japanese Unexamined Patent Publication No. 56-111158. Insert it all the way to the end and manually take out the empty case.
There are many playback devices that employ a so-called semi-automatic loading method. However, with this semi-automatic loading method, when manually inserting and removing cases,
You may have to move the case a lot back and forth,
Furthermore, there have been various problems such as the difficulty of constructing a loading mechanism that operates perfectly even under severe use by users. Therefore, we have proposed a device that has a means for engaging the disc case with the main body of the apparatus, a holding means for holding the disk in order to load the disk into the apparatus from the engaged disk case, and a transport means for transporting these. . According to this, the user can take out the disc from the case by just slightly inserting the disc case.
'− is automatically performed and playback becomes possible.

Problems to be Solved by the Invention In such a playback device, when a disk is already in the playback device and another disk is to be played, the empty case is first engaged with the device, and then the transfer means is removed. By this operation, the disk in the device is placed in the case. Then, the disk case containing another disk is engaged with the device to load that disk into the device. However, when a disc is already in the playback device, a disc case containing another disc may be accidentally inserted into the playback device. If the transfer means operates at this time, the disk will not be properly accommodated in the case, resulting in a serious failure of the device.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method for determining whether the lid is engaged with the disc case when the disc case is inserted into the device and the disc case is engaged by the retaining means. In order to detect whether or not there is a lid, the disc case has a detection means for detecting the presence or absence of a lid, a lock release means for releasing the lock state between the disk case and the device, and a control means for controlling the detection means and the lock release means. Ru.

According to the above-described structure, the present invention determines whether a disc is stored in the disc case or is empty by detecting the presence or absence of the lid of the disc case with which the detection means is engaged. When a case containing a disc is inserted into the device and the engaging means engages the case while there is a disc in the device, the control means operates the disengaging means to disengage the case and remove the empty case. When the disc is inserted, the transport means operates to store the disc in the empty case. This prevents any problems from occurring even if the user operates the device incorrectly.

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

First, the outline will be explained. As shown in FIG. 1, the playback device main body 60 includes a chassis 4o, an exterior case 50a,
It is composed of a turntable 130 and a pick-up unit 120. Bikshisopuunisoto 120 is a product that has been equipped with the goal of regeneration. A fixed base 80 is provided at the front of the chassis 40, and a case engagement and expansion mechanism 60 is provided on the fixed base 80.

The case engaging/expanding mechanism 6° includes a retaining member 62 serving as an engaging means for substantially fixing the case 2 (FIG. 3), and an expanding member 66 for opening the case 2. Also, chassis 4
A movable base 91 is installed on the movable base 91 so as to be movable back and forth (Xl, X2 directions).
0, and claw-shaped release members 107 and 108 that serve as lid release means.
and is provided. The release members 107 and 108 are for releasing the engagement between the case 2 and the lid 3. The disc clamping mechanism 90 includes upper and lower clamp arms 95 that clamp the disc 6.
96, and latching members 99, 100 for hooking and fixing the lid 3. The chassis 40 is further provided with a disk elevating mechanism 134 at the retreated position of the movable base 91, and the disk holding mechanism eo, the movable base 91, and the disk elevating mechanism 134 form a loading means for loading six disks 6. configured.

Next, the whole will be explained in detail.

FIGS. 2 to 6 respectively show the configurations of a disc and a disc case that can be used in the recording disc reproducing apparatus according to this embodiment. In Figure 2, disk 6
has a center hole 34, and ↓Chiaki's outer group guard 33
An inner group guard 32 is provided. In FIG. 3, a rectangular disk case 1 has a disk case main body 2 (hereinafter referred to as the case) and a lid that is removably connected to an opening 7 provided on the front side of the case 2 in the insertion direction x1 into the device. 3, the case 2 and the lid 3 are made of, for example, styrene resin. The inside of the case 2 is a flat disk storage space 6 over its entire width and length, and the disk 6 is stored in this space 6. This space 6 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 consists of a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protruding stripes 9 along the three sides of the flat plate part 8. 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.

Furthermore, a detection hole 3o is provided near the opening of the case 2, as shown in FIGS. 3 and 4. This detection hole 3 is located in a position where it is covered by the lid 3 when the lid 3 is engaged with the case, and when the lid 3 is not present, the detection hole 30 on the front and back side is covered so that light can pass through.

The end of the lid 3 is provided with a flange portion 18 that closes the opening 7 of the case 2 when the lid 3 is securely fixed to the case 2.
In addition, a notch 19 is provided symmetrically 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. 4 shows the 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. Also, lid 3 is case 2
Since the disc 6 is engaged with the opening 7 to close the opening 7, the disc 6 is housed in the case 2 without falling out.

FIG. 5 is a detailed view of the lid 3, in which the shape of the side facing the disk 6 is formed, for example, into a circular arc with a gap at both ends larger than a gap a in the center. This is to ensure stable operation even if the relative positions of the lid 3 and the disk 6 are slightly shifted in two directions during a playback operation to be described later.

FIG. 1 shows a recording disk reproducing apparatus according to this embodiment.

FIGS. 1(8)-(q) show the basic configuration of a recording disc reproducing apparatus. In FIG. 1(8), 130 is a turntable on which the disc 6 is placed and brought into a reproducing state. 131 is the center boss, turntable 1
This is for centering the disk 6 placed on the disk 30. 132 is a clamp, and the turntable 13
The disk 6 placed on the turntable 130 is brought into pressure contact with the turntable 130. 4o is a chassis, and guides 52 and 53 for guiding the case 2 into the main body 50 of the playback device are fixed thereto. Guides 52a and 53a are guide grooves. 60 is a case engagement and expansion mechanism, and the case insertion opening 6
1 on the chassis 4o. Reference numeral 66 denotes an expansion member that is supported by the fixed base 80 so as to be movable up and down, and expands the case 2 with the support member 61 fixed to the fixed base 8o. The fixed base 8o is fixed to the chassis 4o. The engaging member 62 is attached to the fixed base 8o with the shaft 7.
4. It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13.

90 is a disk holding mechanism. 95 is an upper clamp arm, which is formed integrally with the movable base 91. 96
A lower clamp arm is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. 9
9 and 1oO are latching members, and are supported by dovetails and pins 105 and 106 so as to be horizontally rotatable with respect to the movable base 91, and are engaged with the notch 19 of the lid 3 to hang the lid 3. Stop it.

Reference numeral 94 denotes a leaf spring, which is attached to the movable 1o vane base 91 at a position where it comes into contact with the lid 3. Numerals 107 and 108 are claw-like release members formed integrally with the movable base 91, which engage with the slope 26 of the protrusion 24 of the lid 3 to release the lid 3 and the case 2.
functions to release the engagement.

The movable base 91 of the disk clamping mechanism 90 has a rail 45,
46.47, it is supported so as to be movable in the front-rear direction (X1, X2 directions). The rail 46 has V-grooves on both sides as shown in FIG. 1B, and a roller 92 rotatably provided on a movable base 91 fits into the V-groove of the rail 46.

Therefore, the disk holding mechanism 90 is connected to the rails 45, 46, .
It will never deviate from 47. The movable base 91 is fixed to the belt 111 by a connecting piece. A belt 111 is placed between gears 112 and 113, and is driven by a motor 114 equipped with a speed reducer to transport the disk holding mechanism 90.

120 is a pick-up unit, rail 126,
The shaft 122 supports the turntable 130 so as to be movable in the left and right directions (Yl, Y2 directions). Vinoku Asp Uninote 12° disc holding mechanism 90
Similarly, a motor 124 and a belt (not shown) are configured to transport a disk 6'' placed on a turntable 130 in parallel and pick up the signal of the disk 6.

In FIG. 1C, 180 is a support that supports the disk 6, and 181. It is supported by a bearing 182 so as to be able to move vertically (in the Ml and M2 directions). The support 180 is provided in two parts, left and right, as shown in the figure, and has a Y-shaped support 180 so as to hold the group guard 33 of the disc 6.
In the L and Y2 directions (see FIG. 2), the group guard 33 of the disk 6 is configured to hold a larger diameter area. Further, the support 18o is configured to be able to be in a state below the turntable 13o, and a state in which it can protrude above the turntable 130 and support the disc 6 held by the disc holding mechanism 9o.

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

160 is a cam unit, the above-mentioned support 180,
Disc lifting mechanism 134. It drives the case expansion mechanism 60. The cam 161 is horizontally rotatably supported by a shaft 176, and is configured to rotate by the power of a cam drive motor 165 via a worm 166. 162 is a lever (shank) 179. Bearing 1
63 [, and is horizontally rotatably supported and biased in the P1 direction by a spring 172. The levers 167.168 each have a shaft 178. It is rotatably supported by bearings 170 and 171. Each reno (-162,167,
168 are 13 of the cam 161, respectively.

The cam 161 operates according to the cam diagram (Fig. 16).
is linked to. Reference numeral 190 is a reversing lever for switching the operation of the disk holding mechanism 90. The reversing lever 190 is horizontally rotatably supported by a shaft 194, biased in the Q direction by a spring 192, and positioned by a block 191. 140 is a turntable driving motor.

88 shown in FIG. 1A is an LED, 89 is a phototransistor, and the phototransistor 89
is received and can be detected. Moreover, as shown in FIG. 6B, when the case 2 is engaged by the engagement member 62 and the lid is not engaged with the case 2, the phototransistor 88 cannot receive the light 88B from the LEDss. It is in a position where it can be done. Also, case 2 has lid 3.
When the lid is engaged, the lid will display LEDs as shown in Figure 6A.
This will block the light of s as shown by arrow 88A.

In FIG. 1, 202.203.204.

Each of the 14 vanes 205 is a microsinch. The microswitch 200 is a switch for detecting the operation of the case expansion mechanism 60. The microswitch 201 is a switch for detecting the operation of the disk holding mechanism 90. micros inch 2
02 to 206 are switches for detecting the position of the disk holding mechanism 90.

The disc holding mechanism 90 will be explained in detail.

7A-C, 8A and 8B, 9A and 9B, and 10A and 10B are explanatory diagrams of the structure and operation of the disk holding mechanism 9o. The movable base 91 is provided with contact portions 91a on the left and right sides that contact the lid 3. 92 is four rollers, rotatably supported by the movable base 91,
It is 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. 96 is an upper clamp arm, which is formed integrally with the movable base 91, and has a claw 95a as shown in FIG. 7B.
is formed. The lower clamp arm 96 is rotatably supported by a bearing 97 and is supported by a spring 98 in the direction of arrow 98a.
is energized by the configuration.

Reference numeral 99.100 is a locking member that engages with the notch 19 of the lid 3 to lock the lid 3. The latching members 99 and 100 are supported by pins 105 and 106, respectively, so that they can rotate horizontally relative to the movable base 91. The latching members 99 and 100 also include a driven end 116 that is guided by cam grooves 113 and 114 provided in the sliding member 102, and
116 are provided respectively. The sliding member 102 is approximately plate-shaped, and the cam grooves 113 and 114 are connected to the pins 105 and 10.
9 and moves approximately linearly in the direction of arrow Y1 or Y2. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure, and a protrusion 102b
is provided, and a contact portion 102a and a spring hook 110 are provided on the opposite side.
It has a. The protrusion 1o2b passes through the square hole 91b formed in the movable base 91 and connects to the abutting portion 10 of the rotating member 101.
1b (see FIG. 7C). 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. Also,
The sliding member 102 is provided with a wedge-shaped portion 102c, and is configured so that the wedge-shaped portion 192c can come into contact with the abutting end 96a of the lower clamp arm 96, as shown in FIGS. 10A and 10H. The rotating member 101 is horizontally rotatably supported by the movable base 91 by a fulcrum 101a, and is urged by a spring 104 to rotate in the direction of arrow 1o4a (FIG. 7A). In addition to the contact portion 101b as described above, the rotating member 101 has a contact end 1o that can contact the lid 3.
1c is formed. The contact portion 101b has a sloped shape as shown in the figure.

Reference numerals 107 and 108 are release members provided at both ends of the movable base 91, which engage with the inclined portion 26 of the protrusion 24 of the lid 3 to release the lid 3.
This is to release the engagement between the case 2 and the case 2. Reference numeral 109 denotes a contact plate, which is provided at a position where it can come into contact with the microswitches 202-205. A connecting piece 11o' connects the belt 111 and the disk holding mechanism 90.

The operation of the disc holding mechanism 90 will be explained. D17'・ The spoon holding mechanism can take the following three states.

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

To do this, as shown in Fig. 7A, cover the lid 3 and stop it, and the disc 6.
It is in a state where it is held in place. 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 latching member 99.100 is in the cam groove 11.
The driven ends 115 and 116 are guided by the guides 3 and 114, respectively, so that the lid 3 is in a restricted position as shown in the figure.

(in the direction of arrow Y2). Latching member 9
9.100 is connected to the driven end 11 by the cam grooves 113 and 114.
5 and 116 are guided, respectively, so that the lid 3 is in a regulated position as shown in the figure.

The leaf spring 94 is in contact with the lid 3 as shown in the figure, biasing the lid 3 forward (in the direction of arrow x1). The rotating member 1o1 is in contact with the contact end 101C. The lower clamp arm 96 is attached to the group guard 3 of the disc 6 as shown in FIG. 7B.
It is in a state where it is holding 3. In this state, the claw 95a of the upper clamp arm 96 and the rear end 96a of the lower clamp arm 96 are in a position where they come into contact with the group 18'--no guard 33. Further, as shown in FIG. 10B, the contact end 96a comes into contact with the wedge-shaped portion 102C, and the sliding member 102 is moved to the right side (in the figure) by the biasing force of the spring 110.
As a result, the lower clamp arm 96 is urged in the direction of the arrow 98b in FIG. 7B and clamps the group guard 33.

The second state is the "lid holding state". This is Figure 8A
The lid 3 is closed and the disc 6 is not clamped as shown in FIG. In this state, the sliding member 102 is in the middle position among the three states. In this state, the lid 3 is not hooked 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 (Y1 direction) in the figure, the wedge-shaped portion 102C and the abutting end 96a are no longer in contact with each other, as shown in FIG. 10B.

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". This state is the 9th
As shown in the figure, the lid 3 is not locked and the day screen is not clamped. The sliding member 102 is in the position closest to the left side (in the direction of Yl) in the figure among the three states. The latching members 99 and 100 have driven ends 115 and 116, respectively.
are guided by the cam grooves 113 and 114 and are in an open state as shown in FIG. The lower clamp arm 96 is in the same state as in FIG. 8 and is open and does not clamp the disk 6. The rotating member 101 is in the position shown in the figure, and the contact portion 101b and the protrusion 102b of the sliding member 102 are in contact with each other,
The sliding member 102 is prevented from sliding to the right (Y2 direction) in the figure by the biasing force of the spring 110.

In this way, the disc holding mechanism 90 can take three states: "lid/disc holding state", "lid holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Yl, Y2 direction) of 02. By changing the position of the tab sliding member 102 in the Yl and Y2 directions, the disc holding mechanism 90 can be changed into three states: a lid/disc holding state, a lid holding state, and a non-holding state. Can be done. However, the above three states.

Among them, in the "lid holding state", the sliding member 1o2 is held by the spring 11.
It can be held when it is regulated to the state shown in FIG. 8 by some means against a zero force.

The case engagement and expansion mechanism 6o will be explained in detail. 1st
1A-C, 12A-C, and 13A-C are explanatory diagrams of the structure and operation of the case expansion mechanism 60. 8o
is 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 port 61 as described above. The support member 61 is fixed to a fixed base 80. A retaining member 62 is supported by a bearing 63 and a pin 74 fixed to the fixed base 8o so as to be vertically movable. Further, the retaining member 62 is biased by the spring 72 in the direction of arrow W1 in FIG. 11B. As shown in the figure, the expanding member 66 is provided at a position corresponding to the supporting member 61, and is supported by a bearing 67 fixed to the fixed base 8o so as to be vertically movable. The expansion member 66 has an arm 64 and an abutment end 68 formed thereon. 66 is a slider, the first
As shown in FIG. 1C, it is slidably mounted on the fixed base 8o. The slider 65 has a long hole 65a.

65b are provided, and pins 71 and 70 are engaged with each of them to indicate arrows Y1 and 70 in the figure. It is configured to slide linearly in the Y2 direction. Furthermore, the slider 66 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. Furthermore, the slider 66 is provided with retaining portions 69 at two locations, and with this configuration, the expanding member 66 is rotated in the direction of arrow v2 in the figure when the slider 65 acts on the right side (direction of arrow Y2) in the figure. , and by acting on the left side of the figure (arrow Y1 direction), it rotates in the direction of arrow v1. As shown in the figure, a spring 73 is applied between the slider 65 and the fixed base 8o, and always urges the slider 65 to the right (direction of arrow Y2) 22'\-7 in the figure. The slider 66 also has an abutting end 7.
6 and a notch 65C are provided. A case guide 76 serves to guide the case 2, and is fixed to a fixed base 80.

The above is the configuration of the case engagement/expansion mechanism 60. Next, how does the case engagement/expansion mechanism 6o expand the case 2 and engage the case 2 with the playback device so as to substantially fix it? Explain. When the case 2 is not inserted into the playback device, the case engaging and expanding mechanism 60 is in the state shown in FIGS. 11A to 11C.

That is, the notch 66 of the slider 66 and the engaging member 62 come into contact with each other, and the slider 65 is regulated in the state shown in the figure against the biasing force of the spring 73. Therefore, the expanding member 66
It will be regulated to the positions shown in Figures B and C. The case 2 is inserted into the case engaging and expanding mechanism 6o in this state through the insertion opening 51 of the playback device main body 60 and guided by the case guide 75.

13A to 13C show the process of inserting the case 2 into the case engaging and expanding mechanism 60. Figure 13A is the first
This figure shows the case engaging/expanding mechanism 60 in the same state as that shown in FIG. When the case 2 is inserted into the case engaging and expanding mechanism 60 in this state in the direction of arrow When they come into contact, the case 2 is expanded as shown in FIG. 13B. Then, when the case 2 is further inserted, the contact 162a of the engagement member 62 contacts the open end of the case 2, the retaining member 62 rotates in the W2 direction in the figure, and the 13th
As shown in FIG. C, the engagement end 62b of the engagement member 62 engages with the engagement hole 13 of the case 2. When this happens, the notch 650 of the slider 66 and the engaging member 62 are no longer in contact with each other, and the slider 66 slides to the right (Y2 direction) as shown in FIG. 12B by the biasing force of the spring 73. In the state shown in FIG. 12B, the expanding member 66 rotates in the v2 direction as shown in the figure, so that it does not interfere with the removal of the disk 6 from the case 2. Referring to FIG. 1C, the state of the case 2 at this time, that is, the state of the expanded case 2, is shown by a dashed line. In this state, the engaging member 62 is restricted by the slider 65 so as not to rotate in the W1 direction as shown in FIG. 12B. Next, for example, the contact end 7 of the slider 65
6 to the left side (Y1 direction) in the drawing by some means, the slider 66 moves in the direction of arrow Y1, and the notch 6.5c comes to the position of the engaging member 62 as shown in FIG. Then, the engaging member 62 is rotated in the direction of arrow W1 by the biasing force of the spring 72, and the engagement between the engaging hole 13 of the case 2 and the engaging member 62 is released.

In this way, the case engaging and expanding mechanism 6o of this embodiment is
It has means for expanding the case 2 as well as means for engaging the case 2, and by moving the slider 65,
The engagement with the case 2 can be easily released.

one! In addition, in this embodiment, as shown in FIGS. 11 and 12,
Micro switch 2 is placed in a position where it can come into contact with the slider 66.
o○ is provided, so when the case 2 is inserted into the expansion mechanism 6o, the case 2 is engaged, and the slider 65 is operated, the case 2 is expanded and engaged by the micro switch 25... The configuration is such that it is possible to detect when something has happened. Further, when the case 2 is engaged with the engagement member 62, as described above, the engagement member 62 is engaged with the case 2.
Since the movement of the case 2 is restricted by the slider 66, the case 2 will not easily come off and will remain substantially fixed to the playback device 60.

The cam unit 160 will be explained in detail.

14 and 16 are operation explanatory diagrams, and FIG. 15 is a timing chart diagram illustrating the movement of the lever. In FIG. 14, the cam 161 is horizontally rotatably supported by a shaft 176, and a bell) 175. The power of the cam drive motor 165 can be transmitted through the worm 166, and the cam drive motor 165 can be rotated in both forward and reverse directions.

The lever 162 is connected to the shaft 179, and the levers 167 and 168
are rotatably supported on shafts 178, and cams 1
An interlocking member (not shown) that engages with the cam groove 400 of 61 is provided, and when the cam 161 rotates, the cam groove 400
They operate in conjunction with each other. The lever 167 is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. The lever 168 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling member 174 (not shown in FIG. 14, see FIG. 1C), and by rotating the shaft 181, This is for raising and lowering the support 18Q. Lever 16
2 is biased in the P1 direction by a coil spring 163, so that the movement member 404 provided on the lever 162
is always inside the cam groove and is biased in the P1 direction.

The engagement pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 66 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 has cam paths 405 a and 405 b.
.

4050.405d. The cam groove diameter 11 is larger than the cam groove diameter 12. Lever 167°16
The cam grooves 400 that drive the cam grooves 8 are provided so as to operate according to the timing chart shown in FIG. 10, respectively.

Next, the operations of the cam 161 and the lever 162 will be mainly explained, and the operations of the cam unit 16o will be explained using FIG. 8 and FIG. 16. FIG. 14 shows a state in which the case 2 has not been completely 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 66 is stopped by a stopper 410, as shown in FIG. 14B, and is unlikely to move beyond that point. This state is the state shown in FIG. 16B. Engagement pin 16
9 is biased by a coil spring 163 so as to come into contact with the contact member 76, and the moving member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is the t1 state in FIG. 15 (hereinafter, the state will be indicated as tx in the timing chart of FIG. 16).

The micro-sinch 200 detects this state, and the disc holding mechanism 90 grips the disc 6 and starts pulling it out from the case 2. The motor 166 is energized and the cam 16
1 is rotated in the A2 direction shown in FIG. 14B, and the first
According to the timing chart in Fig. 6, levers 167, 1
68 is pulled in the B2 direction shown in FIG. 14B, and support 1
8o and the lifting mechanism 134 rise, and the turntable i
Support the disk 6 above 30 (t2, t3 state)
.

This state is the state shown in FIG. 16C. Furthermore, cam 161
When the lever 168 rotates (FIG. 16D), 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 1
67 moves in direction B1 in FIG. 14, lowers the elevating mechanism 134, and places the disc 6 on the turntable 130 (state T5). When the cam 161 further rotates, T6
The position is detected by a rotary switch (not shown) and the energization of the motor 165 is cut off, thereby stopping the cam 161 (T6 state).

29・＼.

This state is the same as the state shown in FIG. 16B. After this, when the playback switch is turned on, playback starts. When the turntable stops after the playback ends, the motor 166 is energized so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the first lever 167 moves to the first position.
When pulled in the direction B2 in FIG. 4, the elevating mechanism 134 rises and supports the disc 6 above the turntable 130. Thereafter, the lever 168 is pulled, and the support 18o rises to support the disk 6 (state 19). When the cam 161 further rotates, the lever 167 moves in the B1 direction, lowering the elevating mechanism 134 (t10 state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During this operation, the cam 161 rotates, and the lever 1
68 moves in the B1 direction, and the support 18o descends (
t11 state). When the cam 161 further rotates, the lever 162 moves in the B2 direction because the cam groove 12 is smaller than 11. Since the slider 66 is locked by the stopper 410, it does not move, and only the pan bar 162 moves. Further rotation of the cam 6 results in the state shown in FIG. 16E. Figure 16C further shows cam 1.
61 rotates, the interlocking member 404 is located at the branch point between the cam paths 406b and 4050, as shown in FIG. In this state, the abutting member 76 and the engagement pin 169 are further rotatable in the B1 direction. Therefore, the interlocking member 404 is connected to the cam path 40
The coil spring 163 abuts against the inner wall surface of 5a and is biased.
When the cam 161 rotates in the A2 direction in this state, the interlocking member 404 enters the cam path 405b.

Proceeding from the state shown in FIG. 16E, the lever 162 moves the slider 66 in accordance with the movement of the pin 404, and the case 2
The substantially fixed state of is released, and the state shown in FIGS. 8 and 16A is achieved.

To briefly summarize each state in Fig. 16, to is the standby state, tl is the case inserted state, t2 is the lift raised position, t3 is the support raised position, t3' is the start of slider movement, and t4 is the slider lock (ke31). - one step removed), t5 is the lift lowered position, t6 is the standby state, t7 is the case inserted state, t8 is the lift raised position,
t9 is the support raised position, tlo is the lift lowered position, t
11 indicates the support lowered position, and t12 indicates the slider lock (case detachment).

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

B1 FIGS. 24A to 24C are schematic explanatory diagrams showing how the various parts of the reproducing apparatus operate in conjunction with each other.

First, FIG. 17 shows the state before the case 2 is inserted into the main body 50 of the playback device. At this time, the disc holding mechanism 90 is located slightly in front of the center of the turntable 130 as shown in the figure.

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

Further, the support 18o is in a lowered position as shown in FIG. 23A.

Next, the case 2 passes through the insertion port 61 into the guides 52 and 53.
When the case is fully inserted into the case engaging and expanding mechanism 60,
The opening of the case 2 is expanded by the expanding member 66, and in this state, the retaining hole 13 is engaged by the retaining member 62, and the case 2 is substantially fixed to the playback device main body 6o.

Next, in this state, the microsinch 20 shown in FIG.
0 is detected, the motor 114 operates, and the belt 111 is driven to move the disk holding mechanism 90 to the front (in the figure).
Xl direction).

Then, as shown in FIG.
contact, the restriction on the sliding member 102 is released, the sliding member 102 slides to the right (arrow Y2 direction), and the disc holding mechanism 90 enters the "lid/disk holding state" as described above. At this time, the contact portion 102a of the sliding member 102 contacts the microswitch 201, and it is detected that the disc holding mechanism 90 is in the "lid/disc holding state" at this position. Then, the motor 114 rotates in reverse, and the disk holding mechanism 9o begins to be moved backward in the figure (in the X2 direction). At this time, the rollers 103 provided on the sliding member 102 come into contact with the slope 190b of the reversing lever 190, but since the reversing lever 190 can rotate in the direction of arrow R2 in FIG. There is no problem in transferring the disk holding mechanism 9o just by rotating the Reno-190.

Next, FIG. 19 shows the state during the transfer.

As shown in the figure, the lid 3 and the disc 6 are held by a disc holding mechanism 90 and pulled out from the case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the support 180 rises twice as shown in FIG. 23B and holds the group guard 33 of the disk 6. At this time, support 18
Since o only contacts the group guard 33, it does not damage the signal surface of the disk 6.

When the disc holding mechanism 90 is further moved rearward (X2 direction), the center boss 131 at the center of the turntable 13o and the center hole 34 of the disc 6 are
and come to approximately corresponding positions.

Even in this state, the support 18o is configured as shown at 34 in the figure so as to hold the group guard 33 of the disk 6.

Next, the center mounting ring 133 is placed on the cam uni, throat 16
0 and holds the center 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 9o is further moved backward (in the X2 direction), the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 and the slope of the contact member 43 come into contact with each other, and the sliding member 102 acts to the left (Yl direction), twists the disk 6 into the "differential holding state" mentioned above, and moves the disk 6 to the disk holding mechanism 9.
o is in a non-clamped state, which is the state shown in FIG. In this state, as shown in Figure 24C, the disk 6
is held by a mounting ring 133 in the center.

After this, the mounting ring 13 is moved by the operation of the cam unit 16o.
3 is lowered, the disc 6 is placed on the turntable. Next, the force unit 160 operates to release the engagement between the engagement member 62 of the case expansion mechanism 60 and the case 2, and remove the empty case 2 from the playback device. I can do it.

In this state, the turntable 130 rotates, the pisokupunisoto 12o scans the top of the disc 6, and reproduction is performed. At this time, the lid 3 is held from below by lid holding members 41 and 42 as shown in FIG.
It hangs down and does not come into contact with the Pinocquanobu Uninote 120 while driving, for example.

When the playback is completed, the disc 6 is returned to the case. At this time, if a case in which the disk 6 is stored and the lid 3 is engaged is accidentally inserted into the device instead of an empty case, the phototransistor 89 receives the light from the LEDss, so it is determined that the case is not an empty case. be able to.

This information is processed by, for example, an ordinary microcomputer, and the cam 161 is changed from the state shown in FIG. 16B to the state shown in FIG. 16E.
When the motor 165 is energized to rotate in the A2 direction to the state shown in FIG. 16, and then reversed in the A1 direction to return to the state shown in FIG. 16, the case is released and returns to its original state. It detects that the lid 3 is engaged with the case 2, and operates to release the case from the device instead of the normal disc storage operation. Control in this manner is easy with a normal microcomputer. Additionally, the user will become aware of the error when the case is canceled.゛Also, when the empty case 2 is normally inserted into the device and engaged by the engaging member 62, the motor 114 drives the belt 111, and the disk holding mechanism 90 moves forward (in the direction of arrow X1). is,
The state shifts to the state shown in FIG. 24B. Then support 180
is raised by the operation of the cam unit 160, resulting in the state shown in FIG. 24A. After that, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disk holding mechanism 9
0 moves the motor 114.0 forward (in the Xl direction) while holding the lid 3 and disc 6. It is transported by belt 111. In other words, the state shown in FIG. 20 shifts to the state shown in FIG. 19.

37.

When the disk holding mechanism 90 is further moved forward (in the X1 direction), the roller 103 provided on the sliding member 102 and the slope 190a of the reversing lever 190 come into contact. At this time, since the reversing lever 190 is restricted from rotating in R1, the roller 103 climbs the slope 190d, and the sliding member 102 moves to the left (Y1 direction) K, 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 rotates in reverse again, and the disk holding mechanism 90 is moved rearward (in the X2 direction) and returns to the position shown in FIG. 17. After this, the cam unit 160 also operates, and the engagement member 62 of the case 2 and the case expansion mechanism 6o
The case 2 is disengaged from the case 2, the disc 6 is stored in the case 2, and the case 2 can be taken out from the playback device main body 50 with the lid 3 engaged with the case 2.

In this way, the user attaches the case 72 to the playback device main body 6o.
Just by slightly inserting the disc, disc 6 is automatically taken out of case 2, enabling 38-channel playback, and disc 6 is automatically stored in case 2. It is convenient to use since there is no need to move the case 2 back and forth significantly, and reliable operation can be expected even under severe use by the user. In addition, the entire case 2 is attached to the playback device main body 60.
Since only the disc 6 and the lid 3 are pulled in without pulling them in, the playback device body 6 is smaller than when the entire case 2 is pulled in.
This 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. The disk clamping mechanism 9 is controlled by the tabs, a microcomputer, and a normal control circuit.
0 drive motor 114 and arm housing 120
By making the motor 124 that drives the cam drive motor 124 and the cam drive motor 165 perform the j@th order operation, the above operations can be performed.

In addition, the disk holding mechanism 90 may be configured as shown in FIG.
9, 20, 21, and 22, the microswitches 202 to 205 shown in FIG. 6A are attached to the disk holding mechanism 90. Detecting that the contact plate 109 has contacted,
This is possible by programming the motor 114 to stop.

Effects of the Invention As described above, according to the present invention, the detection means detects the presence or absence of the disc case engaged with the device, thereby determining whether a disc is stored in the disc case or whether the disc case is empty. When a case containing a disk is inserted into the device and the engagement means engages the case when there is already a disk in the device, the control means operates the engagement release means to release the engagement of the case; When the empty case is inserted, the transfer means operates to store the disc in the empty case. This prevents any problems from occurring even if the user operates the device incorrectly. Moreover, the configuration is simple and the effects are impressive.

[Brief explanation of the drawing]

FIG. 1A is a perspective view showing a schematic configuration of a recording disk reproducing device according to an embodiment of the present invention, FIG. 1B is a cross-sectional view of the main part of the rail portion of the movable base, and FIG. FIGS. 2A and 2B are a plan view and a sectional view of a disk that can be used in an embodiment of the present invention, and FIGS. 3 and 4 are respectively a perspective view of a unit and a lifting mechanism. A cutaway exploded perspective view and a perspective view of the assembled state, FIGS. 6A-C are main part sectional views showing the relationship between the respective disc cases, and FIGS. 7A-C respectively show the lid and disc holding state of the disc holding mechanism. FIGS. 8A and 8B are a plan view, a sectional view, and a front view of the disk holding mechanism, respectively, and FIG. B is a plan view and a cross-sectional view of the disk holding mechanism in a non-holding state, FIGS. 10A and B are operation explanatory diagrams showing the relationship between the sliding member of the disk holding mechanism and the clamp arm, and FIG. 11. A-C411... are the same plan views, sectional views, and front views of the case expansion mechanism in the case non-insertion state, and FIGS. 12A-C are respectively the same 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. 16 is a time diagram of the cam unit. Charts, FIGS. 16A-E are explanatory diagrams of the operation of the same cam unit, FIGS. 17 to 22 are explanatory diagrams of the operation of the entire playback device seen from above, and FIG. 23A
, B are operational explanatory diagrams showing the relationship between the support and the disc, and FIGS. 24A to 24C are operational explanatory diagrams similarly showing the longitudinal side of the reproducing apparatus. 1...Disk case, 2...Case body,
3... Lid, 6... Disc (recording medium), 13... Engagement hole (engaging part), 40...
・Chassis, 60... Playback device body, 51...
・Case insertion port, 6o...Case engagement and expansion mechanism, 6
2...Engaging member (case engaging means), 62a.
... Contact portion, 62b ... Engagement 42' - end, 65 ... Slider, 80 ... Fixed base, 88 ... LED, 89...Phototransistor, 90...Disk holding mechanism,
91...Movable base, 96...Upper clamp arm, 96...Lower clamp arm, 99.100.
...Latching member, 107, 108...Release member, 120...Pickup unit, 134...
...Disk lifting mechanism, 160...Cam unit, 180...Support, 20o~205...
···Microswitch.

Claims (1)

[Claims] A disc case consisting of a case body having a storage space inside which can store a disc-shaped recording medium and having an opening at one end for taking out the recording medium, and a lid that removably engages with the opening. comprising: a playback device main body having a playback means; an engagement means for engaging the disc case with the device; an engagement release means for releasing the engagement; and a playback device main body having a playback means; A recording disk reproducing apparatus characterized by comprising a lid detecting means for detecting whether or not the lid is engaged with the disk case when the lid is engaged with the disc case.