JPS60237677A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To obtain the titled easy-to-use reproducing device by providing an engagement state annunciating means which detects the change of the case body of a case engaging means between the fixed and unfixed states. CONSTITUTION:Guides 52 and 53 which guide a case 2 into the reproducing device 50 are fixed to a chassis 40 and guide grooves 52a and 53a are formed in the respective guides. A case spreading mechanism 60 is fixed on the chassis 40 near a case insertion slit 51, a spreading member 66 which is supported upward and downward rotatably is provided to a fixed base 80, and the case is spread by a support member 61 fixed to the fixed base 80. Then, microswitches 200- 205 are provided; the switch 200 detects the operation of the case spreading mechanism 60 and the switch 201 detects the operation of a disk clamping mechanism 90. Further, the switches 202-205 detect the position of the disk clamping mechanism.

Description

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

Conventional configurations and their problems Traditionally, in playback devices for high-density recording discs, such as video discs, as in Japanese Patent Application Laid-open No. 111158/1983, a player manually plays a disc in a cylindrical disk case. There are many playback devices that use a so-called semi-automatic loading method, in which the player inserts the player deep into the case and manually removes the empty case. However, with this type of semi-automatic loading method, when inserting and removing the case manually, the case must be moved back and forth significantly, and the loading mechanism does not function perfectly to withstand harsh use by the user. There were various problems such as difficulty in configuring the system.

Therefore, we have proposed a reclaimed rice pad that includes means for removably fixing the disc case to the main body of the playback device, and means for pulling the disc from the disc case into the playback device. According to this, when the user only slightly inserts the case, the disc is automatically taken out from the case and loaded, and playback becomes possible. Once the disc has been loaded, the case does not need to be fixed to the playback device;
The locking by the case engaging means is released. However, if you do not know whether this engagement has been released and the case is ready to be removed, you may carelessly attempt to remove the case, causing damage to the case or the device, or allowing the case to be removed more than necessary. There was also the problem that it took a long time for the operation to take place.

Purpose of the Invention This invention provides a disc case that, when a user slightly inserts a disc case into the main body of a playback device, the recording medium is pulled out from the case and loaded in a playable state, and the case can be removed from the main body of the playback device. To provide a recording disk reproducing device that is convenient to use and allows you to clearly see whether or not it has changed.

Composition of the Invention The recording disk reproducing device of the present invention includes a case main body which has a storage space capable of storing a disk-shaped recording medium therein and has an opening at one end for taking out the recording medium, and a case body which can be attached and detached from the opening. A device using a disc case comprising a lid that can be engaged with the player, the playback device main body having a playback means, a case engagement means for removably fixing the case body to the playback device main body, and the a lid release means for releasing the connection between the opening of the case body and the lid; a loading means for loading the recording medium into a playable position of the playback device body; and a case engagement means for fixing the case body. and engagement state notification means for notifying a change between a fixed state and an unfixed state.

Because of this configuration, when the user slightly inserts the case into the playback device main body, the case engagement means fixes the base to the playback device main body, and the lid release means releases the engagement between the case and the lid. Then, the loading means loads the recording medium into a position where it can be played. After loading is completed, when the case engagement means is in a non-engaged state and the case is ready to be removed from the playback device main body, the engagement state notification means notifies this and the user is informed that the case can now be removed. I understand.

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

First, the outline will be explained. As shown in FIG. 6, the playback device main body 50 includes a chassis 40, an exterior case 50a, a turntable 130, and an arm housing 120. The arm housing 120 mounts a reproducing head.

A fixed base 80 is fixed to the chassis 40, and an engaging member 62 serving as a case engaging means is attached to the fixed base 80 so as to be vertically movable. The chassis 40 has a movable base 9
A pair of claw-shaped release members 1 are installed on a movable base 91 so as to be movable back and forth (X, X2 directions) and serve as a lid release means.
07.108 is provided. An upper clamp arm 95 and a lower clamp arm 96 that clamp the disc 6 are further attached to the movable base 91, and these and the movable base 9
1 and its driving motor 114 constitute a loading means for loading the disc 6 onto the turntable 130. Whether or not the case 2 is engaged with the engagement member 62 is detected by the microswitch 200. The microswitch 200 is connected to a lamp 500 provided on the front of the playback device main body 50 as a notification means. Next, the whole will be explained in detail.

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

The case 2 and the lid 3 are made of styrene resin, for example. The interior of the case 2 is a flat disk storage space 5 over its entire width and length, and a disk 6 is stored within this space 5. This space 5 has the opening 7 on the side in the insertion direction X, and is closed on the remaining three sides. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protrusions 9, 10.1 along the three sides of the flat plate part 8.
1 and more. At the center near the opening 7 is a lid 3 which will be described later.
An engagement hole 13 is formed in which the convex portion of the opening 7 engages.
Engagement holes 16 are formed on the left and right sides of the lid 3, into which the protrusions of the lid 3 engage.

A flange portion 18 is provided at the end of the lid 3 to cool the opening 7 of the case 2 when the lid 3 is fixed to the case 2.
Moreover, a notch 19 into which a later-described expansion member can enter is provided symmetrically to the center line (ff).

A leaf spring 25 having a protrusion 24 at its tip that engages with the aforementioned engagement hole 16 and fixes the lid 3 to the case 2 is further provided at the end of M3. The tip of the protrusion 24 is provided with an inclined portion 26 that engages with the release member M3. 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 M3 engages with case 2 to close opening 7, disk 6 is housed without falling out of case 2.

FIG. 4 is a detailed view of M3, in which the shape of the side facing the disk 6 is formed, for example, by a circular arc in which the gap at both ends is larger than the gap a at the center. This is to ensure stable operation even if the relative positions of the lid 3 and the disk 6 are slightly shifted in the Z direction during a playback operation to be described later.

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

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

Reference numeral 60 denotes a case expansion mechanism, which 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. Fixed base 80 is fixed to chassis 40. The engaging member 62 is attached to a fixed base 80 with a shaft 74 . It is rotatably supported by a bearing 63 and functions to engage with the case 2 engagement hole 13. 90 is a disk holding mechanism. 95 is an upper clamp arm, and a movable base 91
is formed integrally with. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. Reference numerals 99 and 100 denote latch members, which are supported by pins 105 and 106 so as to be horizontally rotatable with respect to the movable head 91, and are connected to the notch 1 of M3.
9 to lock and stop M3. A leaf spring 94 is attached to the movable base 91 at a position where it contacts M3. Reference numerals 107 and 108 are claw-shaped release members formed integrally with the movable base 91, and the slope 2 of the protrusion 24 of the lid 3
6 to release the engagement between the lid 3 and the case 2.

The movable base 91 of the disk holding mechanism 90 is connected to the rail 45.
46 and 47 so as to be movable in the front and rear directions (X, X2 directions). The rail 45 has grooves on both sides as shown in FIG. 6(B), and a roller 92 rotatably provided on a movable base 91 is fitted into the Va of the rail 45. Therefore, the disk holding mechanism 90 is
It never deviates from 6.47. The movable base 91 is fixed to the heald 111 by a connecting piece. belt 111
is hung between gears 112 and 113, and a morph 114 equipped with a speed reducer drives the heald 111 and moves the disk holding mechanism 90. 120 is an arm housing, which includes a rail 126 and a shaft 122;
It is supported so as to be movable in the left and right directions (Y, Y2 directions) on the turntable 130. Arm no λ Uzing 1
Similar to the disk holding mechanism 90, the morph 20 is also moved in parallel over the disk 6 placed on the turntable 130 by the morph 124 and a belt (not shown), and is configured to pick up the signal of the disk 6.

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

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. By rotating the lift arm 142, the lift ring 136 (see FIG. 24) supported by the lift arm 142 and located at the lower part of the elevating ring 135 is raised and lowered, and the mounting ring 133 fixed to the elevating ring 135 raises and lowers the lift ring 136 (see FIG. 24). The disk 6 is raised and lowered between a state where it is supported above the turntable 130 and a state where it is placed on the turntable 130.

160 is a cam unit, the above-mentioned support 180,
Disc lifting mechanism 134. It drives the case expansion mechanism 60. The cam 161 is horizontally rotatably supported by a shaft 176, and is configured to rotate by the power of a cam driving morph 165 via a worm 166. 162 is a lever (shirt) 179. It is horizontally rotatably supported by a bearing 163 and urged in the P1 direction by a spring 172. The levers 167, 168 each have a shaft 178. It is rotatably supported by bearings 170, 17.1. Each reno＼-162゜16
7 and 168 are respectively linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15).

190 is a reversing lever for switching the operation of the disk holding mechanism 90. The reversing leno-190 is supported horizontally by a shaft 194, and is rotated horizontally by a spring 192.
direction and is positioned by block 191.

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

Micro switch notches 202 to 205 are switches for detecting the position of the disk holding mechanism 90.

The disc holding mechanism 90 will be explained in detail.

7(A)-(C), FIGS. 8(A), (B), FIG. 9, and FIG. 10 are explanatory diagrams of the structure and operation of the disk holding mechanism 90. The movable base 91 is provided with contact portions 91a on the left and right sides that contact the lid 3. 92 is four rollers, rotatably supported by the movable base 91,
It is engaged with the rail 45 as shown in FIG. 7(C). A roller 93 is rotatably supported on the opposite side of the movable base 91. Reference numeral 94 denotes a leaf spring, which is attached at a position where it comes into contact with the lid 3. Reference numeral 95 denotes an upper clamp arm, which is formed integrally with the movable base 91, and is provided with a claw 95a as shown in FIG. 7(B). The lower clamp arm 96 is rotatably supported by a bearing 97 and biased by a spring 98 in the direction of arrow 98a. Reference numerals 99 and 100 denote locking members that engage with the notches 19 of the lid 3 to lock and lock the lid 3.

The latching members 99 and 100 are attached to the bins 105 and 106, respectively.
It is supported so as to be horizontally rotatable relative to the movable base 91. Further, the latching member 99.degree. 100 is provided with driven ends 115, 116, respectively, which are guided by cam grooves 113.degree. 114 provided in the sliding member 102.

The sliding member 102 is approximately plate-shaped, and has cam grooves 113 and 114.
is guided by pins 105 and 109 and moves approximately linearly in the direction of arrow Y1 or Y2. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure.
Also, a protrusion 102b is provided, and a contact portion 102a is provided on the opposite side.
and a spring hook 110a. The protrusion 102b passes through the square hole 91b made in the movable base 91 and connects the rotating member 1.
01 (see FIG. 7(C)). Further, the sliding member 102 is always biased in the direction of arrow K12 by the spring 110 that is held between the spring hook 111 and the spring hook portion 112 of the movable base 91. Further, the sliding member 102 is provided with a wedge-shaped portion 102C, and FIGS.
), the wedge-shaped portion 102c is configured to come into contact with the contact end 96a of the lower clamp arm 96. The rotating member 101 is horizontally rotatably supported on the movable base 91 by a fulcrum 101a, and is supported by an arrow 104a by a spring 104.
It is urged to rotate in the direction shown in FIG. 7(A).

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

Release members 107 and 108 are provided at both ends of the movable base 91, and engage with the inclined portion 26 of the protrusion 24 of M3 to release the engagement between M3 and the case 2. Reference numeral 109 denotes a contact plate, which is provided at a position where it can come into contact with the microswitches 202-205. A connecting piece 110' connects the heald 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 "M disk holding state".

This is a state in which the lid 3 is closed and the disc 6 is clamped as shown in FIG. 7(A). In this state, the sliding member 10
2 is located closest to the right in the figure (in the direction of arrow Y2) among the three states. The locking members 99 and 100 are in the cam groove 1
The driven ends 115 and 116 are guided by the guides 13 and 114, respectively, so that the lid 3 is in a restricted position as shown in the figure.

The leaf spring 94 is in contact with M3 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 of clamping the group guard 33 of the disk 6 as shown in FIG. 7(B). In this state, the claw 95a of the upper clamp arm 95 and the contact end 96a of the lower clamp arm 96 are in a position to contact the group guard 33.

In addition, as shown in FIG. 10(B), the contact end 96a contacts the wedge-shaped portion 102c, and the sliding member 102 is urged to the right in the figure (in the direction of arrow Y1) by the urging force of the spring 110. As a result, the lower clamp arm 96 is biased in the direction of arrow 98b in FIG. 7(B) and clamps the group guard 33.

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

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

The third state is a "non-retention state". This state is the 9th
As shown in the figure, the lid 3 is not hooked and the disc 6 is not clamped. The sliding member 102 is in the position closest to the left side (Y direction) of the three states. The driven ends 115 and 116 of the latching members 99 and 100 are guided by the cams a 113 and 114, respectively, and are in an open state as shown in FIG. The lower clamp arm 96 is in the same state as in FIG. 8, and is open and does not clamp the disk 6. The rotating member 101 is in the position shown in the figure, and the contact portion 101b and the protrusion 102b of the sliding member 102 are in contact with each other, and the sliding member 102 is moved to the right side (in the figure) by the biasing force of the spring 110.
It is regulated so that it does not slide in the Y2 direction).

In this way, the disc holding mechanism 90 can take three states: "lid/disk holding state", "differential holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Y, Y2 direction) of 02. In other words, by changing the position of the sliding member 102 in the Yl and Y2 directions, an "M-disc holding state" and a "differential holding state" can be achieved.

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

The case expansion mechanism 60 will be explained in detail.

11(A)-(C), FIG. 12(A)-(C), and FIG. 13(A)-(C') are explanatory diagrams of the structure and operation of the case expansion mechanism 60. Reference numeral 80 is a fixing base for 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 61
is fixed to a fixed base 8o. Reference numeral 62 denotes an engaging member, which is supported by a bearing 63 and a pin 74 fixed to the fixed base 8° so as to be vertically movable. Further, the retaining member 62 is biased by the spring 72 in the direction of the arrow w1 in FIG. 11(B). The expansion member 66 is 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. 11(C). The slider 65 is provided with elongated holes 65a and 65b, into which pins 71 and 70 are engaged, respectively, as indicated by the arrows Y1 and 70 in the figure. It is configured to slide linearly in the Y2 direction. In addition, the contact portion 63a of the bearing 63 causes the
), the slider 65 is regulated at the center, and has a washer on the lower side so as not to bend. Also,
The slider 65 is provided with two retaining portions 69, and with this configuration, the expansion member 66 has the slider 65 on the right side (in the figure).
By acting in the direction of arrow Y2), it rotates in the direction of arrow 2 in the figure, and by acting in the left side of the figure (in the direction of arrow Y1), it rotates in the direction of arrow 1. Additionally, a spring 7 is connected between the slider 65 and the fixed base 80 as shown in the figure.
3 is applied, and slider 65 is moved to the right side of the figure (arrow Y
2) direction). Further, the slider 65 is provided with an abutting end 76 and a notch 65C. A case guide 75 serves to guide the case 2, and is fixed to the fixed base 80.

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

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

FIGS. 13(A) to 13(C) show the process of inserting the case 2 into the case expanding mechanism 6°.

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

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

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

Further, in this embodiment, as shown in FIGS. 11 and 12, a microswitch 200 is placed at a position where it can come into contact with the slider 65.
Therefore, when the case 2 is inserted into the expansion mechanism 60, the case 2 is engaged, and the slider 65 is operated, the microswitch 200 can detect that the case 2 is expanded and engaged. The structure is as follows. Further, when the case 2 is engaged with the engagement member 62, the movement of the engagement member 62 is regulated by the slider 65 as described above, so the case 2 does not come off easily.
It is in a state where it is substantially fixed to the playback device 50.

Further, the microswitch 200 detects whether or not the case 2 is engaged with the engagement member 62, and a lamp 500 serves as a notification means to notify this detection state.
(FIG. 5) is provided on the front of the playback device main body 50. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp 500 is connected to remain lit while the engagement member 62 is in the engaged state. Note that a buzzer may be used as this notification means. In the case of a buzzer, it should sound when the state changes from the engaged state to the non-engaged state.

The cam unit 160 will be explained in detail.

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

The lever 162 is connected to the shaft 179, and the levers 167 and 168
are rotatably supported by the shaft IL8, and the cam 1
An interlocking member (not shown) that engages with the cam groove 400 of 61 is provided, and when the cam 161 rotates, the cam groove 400
They operate in conjunction with each other. The lever 167 is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. The lever 168 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling member 174 (not shown in FIG. 14, see FIG. 16(C)), and can rotate the shaft 181. This is to raise and lower the support 18o. The lever 162 is biased in the P direction by a coil spring 163, so the interlocking member 404 provided on the lever 162 is always in the cam groove and biased in the P1 direction.

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

The cam a400 will be explained using FIG. 16(A). The cam groove 400 has cam paths 405a and 405b.

It is composed of 405c and 405d. Cam groove diameter 1
1 is greater than 12. Lever 167.168
The cams 400 for driving the cams 400 and 400 are respectively provided to operate according to the timing chart shown in FIG.

Next, the operation of the cam unit 160 will be explained with reference to FIGS. 8 and 16, focusing on the operations of the cam 161 and the lever 162. FIG. 14 shows a state in which the case 2 is not inserted into the playback device, and the corresponding cam 161 and interlocking member 404 are in the state shown in FIG. 16(A). When the case 2 is inserted, the slider 65 moves and the contact member 7
6 moves the engagement pin 1G'9, resulting in the state shown in FIG. The slider 65 is stopped by a stopper 410, as shown in FIG. 14(B), and does not move further. This state is the state shown in FIG. 16(B). The engagement pin 169 is connected to the contact member 7 by the coil spring 163.
6, and the interlocking member 404 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is 1 in Figure 15. (Hereinafter, the state will be indicated as tx in the timing chart of FIG. 15).

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

At this time, since the cam groove diameter ρ2 is smaller than β1, the lever 16
2 moves in the B2 direction. The slider 65 is the stopper 41
Since it is locked by 0, it does not move, and only the lever 162 moves. When the cam 6 rotates further,
The state shown in FIG. 16(D) is reached. When the cam 161 rotates further than in FIG. 16(C), the interlocking member 404 is located at the branch point of the cam paths 405a and 405c, as shown in FIG. 16(D), or the lever 162 is moved by the spring 163. P.

In this state, the contact member 76 is separated from the engagement pin 169, as shown in FIG. 16(D).
As shown in , the engagement pin 169 is in a state where it can further rotate in the B1 direction. Therefore, the interlocking member 404 is urged into contact with the inner wall surface of the cam path 405a by the coil spring 163, and when the cam 161 rotates in the A2 direction in this state, the interlocking member 404 enters the cam path 405a. Furthermore, cam 16
1 rotates, the lever 162 moves in the P direction shown in FIG. 14, and the lever 168 moves in the B1 direction. Lever 1
62 moves the slider 65 to the state shown in FIG. 14(A) by moving in the B1 direction, and releases the state in which the engagement member 62 engages the case 2 (state t4). At the same time, the lever 168 moves in the B1 direction shown in FIG.
It moves in one direction, lowers the elevating mechanism 134, and places the disc 6 on the turntable 130 (state 15).

When the cam 161 further rotates, it enters the L6 state, and each time the position is detected by a rotary switch (not shown) and the motor 165 is de-energized, the cam 161 stops (L6 state). This state is the state shown in FIGS. 14(A) and 16(A), 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 locking state of the slider 65 is released and the case 2 is expanded as described above. Almost fixed to the opening mechanism (
t7 state). This is the state shown in FIG. 9M and FIG. 16(B). The microswitch 200 detects this state,
The motor 165 is energized so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the square lever 167 is pulled in the direction B2 in FIG.
Support above 0. When the lever 168 is pulled, the re-port 180 rises and supports the disk 6 (t9
situation). When the cam 161 further rotates, the lever 167
moves in the B1 direction and ascends! The mechanism 134 is lowered (tl[l state). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During this operation, the cam 161 rotates, the lever 168 moves in the B1 direction, and the support 180 descends (state t11). When the cam 161 further rotates, the interlocking member 404
enters the cam path 4'05b after facing the branching member 403b, resulting in the state shown in FIG. Then, the state shown in FIG. 16(A) is obtained.

To briefly summarize each state in Fig. 15, to is the standby state, tl is the case inserted state, R2 is the lift raised position, R3 is the support raised position, t3' is the start of slider movement, and R4 is the slider lock (case removed). , R5 is the lift lowered position, R6 is the standby state, R7 is the case inserted state, R8 is the lift raised position, R9 is the support raised position, tlo is the lift lowered position, tI+ is the support lowered position, t1□ is the slider lock (case removal) ) are shown respectively.

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

24(B) and FIGS. 24(A) to 24(C) are all schematic explanatory diagrams showing how the operations of each part of the reproducing apparatus are performed in conjunction with each other.

First, FIG. 17 shows the state before the case 2 is inserted into the playback device main body 5o. 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 downward position as shown in FIG. 23(A).

Next, the case 2 passes through the insertion opening 51 and moves to the guide 52°53.
When the case 2 is guided and inserted into the case expansion mechanism 60, the opening of the case 2 is expanded by the expansion member 66, and in this state, the engagement hole 13 is engaged by the engagement member 62, and the playback device main body 5o It is approximately fixed at .

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the motor 114 operates, and the disk clamping mechanism 90 is moved forward (in the figure) by driving the bell) 111.
X1 direction).

Then, as shown in FIG. 18, the disk holding mechanism 90 enters the expanded case 2, and the rotating member 101 is inserted into the M3.
contact, the restriction on the sliding member 102 is released, the sliding member 102 slides to the right (arrow Y2 direction), and the disc holding mechanism 90 enters the "lid/disk holding state" as described above. At this time, the contact portion 102a of the sliding member 102 contacts the microswitch 201, and it is detected that the disc holding mechanism 90 is in the "lid/disk holding state" at this position. Then, the motor 114 rotates in reverse, and the disk holding mechanism 90 begins to be moved backward in the figure (in the X2 direction). At this time, the roller 103 provided on the sliding member 102 and the slope 190b of the reversing lever 190 come into contact with each other, but since the reversing lever 190 is rotatable in the direction of arrow R2 in FIG. There is no problem in transporting the disk holding mechanism 90 just by moving the disk holding mechanism 90.

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

As shown in the figure, the M3 and the disk 6 are held by a disk holding mechanism 90 and pulled out from the case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the sabot 180 rises as shown in FIG. 23(B) and holds the group guard 33 of the disk 6. At this time, support 1
80 only touches the group guard 33, so it does not damage the signal surface of the disc 6.

When the disk holding mechanism 90 is further moved rearward (in the X2 direction), the center hub 131 of the turntable 130 and the center hole 34 of the disk 6 almost correspond to each other, as shown in FIG. .

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

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

FIG. 24(A) is a diagram explaining this state from the side. Next, as shown in FIG. 24(B), the support 180 is lowered by the operation of the cam unit 160. Next, when the disk holding mechanism 90 is further moved backward (in the X2 direction), the roller 103 provided on the sliding member 102 of the disk holding mechanism 90 and the slope of the contact member 43 come into contact with each other, and the sliding member 102 acts to the left (Y direction), resulting in the above-mentioned "differential 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. 24(C). After that, when the loading link 133 is lowered by the operation of the cam unit 160, the disc 6 is placed on the turntable 130.
is operated, the engagement between the engagement member 62 of the case expansion mechanism 60 and the case 2 is released, and the empty case 2 can be removed from the playback device.

In this state, the turntable 130 rotates, the 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 differential holding members 41 and 42 as shown in FIG. 21, it does not hang down and come into contact with, for example, the arm housing 120 while traveling.

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

Next, the motor 114 drives the heald 111, and the disk holding mechanism 90 is now moved forward (in the direction of arrow X1), shifting to the state shown in FIG. 24(B). Then, by the operation of the support 180 or the cam unit 160, it is raised by one step, and becomes the state shown in FIG. 24(A). After that, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disc holding mechanism 90 moves forward (X) while holding the lid 3 and the disc 6.

direction) to morph 114. It is transported by the heald 111. In other words, the state shown in FIG. 20 shifts to the state shown in FIG. 19.

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

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

Then, the motor 114 rotates in reverse again, and the disk holding mechanism 90 is moved rearward (X2 direction) and returns to the position shown in FIG. 17. After this, the cam unit 160 also operates, and the engagement member 62 of the case 2 and the case expansion mechanism 60
With the disc 6 disengaged from the case 2, the disc 6 stored in the case 2, and engaged with the M3 case 2,
The case 2 can be taken out from the playback device main body 50.

In this way, the user attaches the case 2 to the playback device main body 50.
By just slightly inserting the disc 6, the disc 6 is automatically taken out from the case 2 and playback becomes possible, and the disc 6 is also automatically stored in the case 2. Therefore, 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 under severe use by the user. Further, since only the disc 6 and the lid 3 are pulled in without pulling the entire case 2 into the playback device main body 50, there is an advantage that the playback device main body 50 can be made thinner than when the entire case 2 is pulled in. .

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

In addition, the disk holding mechanism 90 may be configured as shown in FIG.
In order to stop at each position shown in FIG. 9, FIG. 20, FIG. 21, and FIG. 22, the microswitches 202 to 205 shown in FIG. It is detected that the plate 109 has come into contact with the motor 11.
This is possible by programming to stop 4.

Effects of the Invention In the recording disc playback device of the present invention, when the user just slightly inserts the disc case into the playback device main body, the recording medium is pulled out from the case and loaded in a playable state, and the case is attached to the playback device main body. It can be clearly seen whether or not the device can be removed from the device, which has the effect of making it convenient to use.

[Brief explanation of drawings]

Figures 1 (A) and (B) are a plan view and a sectional view, respectively, of a disk that can be used in an embodiment of the present invention, and Figures 2 and 3 are exploded perspective views, respectively, of a disk case that accommodates the disk. and a perspective view of the assembled state; FIGS. 4A to 4C are a front view, a plan view, and a side view of the lid of the disc case, respectively; FIG. 5 is an external perspective view of an embodiment of the present invention; FIG. 6(A) is a perspective view of its schematic configuration, FIG. 6(B) is a sectional view of the rail portion of the movable base, and FIG. 6(C) is a perspective view of the cam unit and lifting mechanism. , FIGS. 7(A) to (C) are a plan view, cross-sectional view, and front view of the lid/disk holding state of the disc holding mechanism, respectively, and FIGS. 8(A) and (B) are the same, respectively, showing the same disc holding state. A plan view and a sectional view of the mechanism in the lid holding state, FIGS. 9(A) and (B) are the same as a plan view and a sectional view of the disk holding mechanism in the non-holding state, and FIGS. 1O(A) and (B). ) is an explanatory view of the operation showing the relationship between the sliding member and the clamp arm of the disk holding mechanism, and FIGS. 11(A) to (C) are plan views of the case expansion mechanism in a state where the case is not inserted. , a sectional view and a front view, and FIGS. 12(A) to (C) are respectively a plan view, a sectional view, and a front view of the case expansion mechanism in the case insertion state, and FIGS. 13(A) to (C) are respectively Similarly, FIGS. 14A and 14B are explanatory diagrams of the operation of the case expansion mechanism, FIG. 15 is a time chart of the cam unit, and FIGS. D) is an explanatory diagram of the operation of the same cam unit, and Figs.
3A and 3B are operation explanatory diagrams showing the relationship between the support and the disc, and FIGS. 24A to 24C are operation explanatory diagrams showing the longitudinal side view of the playback apparatus. 1... Disc case, 2... Case body, 3...
- Lid, 6... Disc (recording medium), 40... Chassis, 50... Playback device main body, 51... Case insertion slot, 60... Case expansion mechanism, 62... Engagement Element,
65...Slider, 80...Fixed base, 90...
・Disc holding mechanism, 91... Movable base, 95...
- Upper clamp arm, 96...lower clamp arm, 99.
100... latching member (M latching means), 107, 10
8... Release member (lid release means), 120... Arm housing, 134... Disc lifting mechanism, 160...
...Cam unit, 180...Support, 200-2
05...Micro Suinochi Fig. 10 Fig. 13 (A) Fig. 14

Claims (1)

[Claims] A disk case consisting of a case body that has a storage space inside which can store a disk-shaped recording medium and has an opening at one end for taking out the recording medium, and a lid that removably engages with the opening. A recording disc playback device to be used, comprising: a playback device main body having a playback means; a case engagement means for fixing the case body to the playback device main body so as to be engageable with the playback device main body;
a lid release means for releasing the engagement between the opening of the case body and the lid; a loading means for loading the recording medium into a playable position of the playback device body; 1. A recording disk reproducing device comprising engagement state notification means for notifying a change between a fixed state and an unfixed state.