JPS60237676A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To prevent malfunction by providing a sliding member so that a lid is locked and unlocked by lid lock members and a recording medium is clamped and unclamped by clamping members successively. CONSTITUTION:When a user only inserts a disk case into a reproducing device slightly, the lid is released from the case by a lid releasing means and locked lid locking means 99 and 100 and the recording medium is supported by upper and lower clamping arms 95 and 96 as clamping members. Those operations are carried out as the sliding member 102 with cam parts 113 and 114 which abut on the lid lock members 99 and 100 and clamping members 95 and 96 slides in one direction. Thus, the respective operations are carried out by the cam parts 113 and 114 of the one sliding member 102, so the structure is simple, there is no deviation among the operation, and malfunction is prevented.

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, a means for removably fixing the disc case to the main body of the playback device, a latching member for removably latching the lid, a holding member for holding the recording medium, and these latching members and The present invention has proposed an apparatus equipped with a transfer means for transferring the holding member within the main body of the reproducing apparatus. According to this, when the user only slightly inserts the case, the disc is automatically taken out from the case and playback becomes possible. However, when the latching member and the clamping member are sequentially operated, the structure becomes complicated and malfunctions are likely to occur.

Purpose of the Invention This invention provides a member that allows the user to automatically take out the recording medium from the case and play it by simply slightly inserting the case into the main body of the playback device. Another object of the present invention is to provide a recording disk reproducing device in which the structure of the drive means for the members that sandwich the recording medium is simple and malfunctions are less likely to occur.

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. An apparatus using a disc case comprising a lid that can be engaged with the player, the player body having a playback means, a lid release means for disengaging the lid from an opening of the case body, and the lid. a latching member that releasably engages and locks the recording medium; a clamping member that clamps the recording medium; a transfer means that transports the latching member and the clamping member within the main body of the playback apparatus; The sliding member is provided as a cam portion and comes into contact with the latching member and the holding member. The sliding member has a latching state in which the latching member latches and locks the lid by sliding, a non-latching state in which the latching member does not latching or locking the lid, and a non-latching state in which the latching member latches and locks the lid. A nipping state in which the recording medium is nipped and a non-nipping state in which the nipping member does not nip the recording medium are sequentially performed.

With this configuration, when the user only slightly inserts the disc case into the main body of the playback apparatus, the lid is released from the case by the lid release means and is latched by the latching means. Next, the recording medium is held between the holding members.

These operations are performed by sliding in one direction a sliding member having a cam portion that contacts the latching member and the clamping member. In this way, since each operation is performed by the cam portion of one sliding member, the structure is simple, there is no deviation in mutual operation, and malfunctions are prevented. The latching member, the clamping member, and the sliding member are transported within the main body of the reproducing apparatus by a transporting means, whereby the recording medium is automatically loaded to a position where it can be reproduced.

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.

The chassis 40 has a movable base 91 at the front and rear (Xl.

X2 direction) is movably installed, and the movable base 91
, a pair of claw-shaped release members 100, 1 serving as lid release means.
08, a pair of horizontally rotatable latch members 99°100 that removably latch the lid 3 of the case 2, and a disc 6.
An upper clamp arm 95 and a lower clamp arm 96 that serve as clamping members for clamping are attached. The lower clamp arm 96 is vertically movable. The movable base 91 is driven by a motor 114, and the motor 114 and the movable base 91 constitute a transfer means. Movable base 9
1 further includes a plate-shaped sliding member 102 on the left and right sides (Yl, Y2
direction) so that it can slide freely. Sliding member 102
is the driven end 115, 116 (of the latching member 99, 100)
The sliding member 10 has cam grooves 113, 114 that come into contact with the sliding member 10 (see FIG.
2, the interlocking members 99, 100 and the lower clamp arm 96 are rotated. 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 main 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 X into the device. M3.

Case 2 and M3 are made of, for example, styrene resin. 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 insertion direction X1 side, and is closed on the remaining three sides. As shown in the figure, the case 2 includes a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protrusions 9, 10.1 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.
In addition, a notch 19 is provided symmetrically to the center line (1) into which an expanding member, which will be described later, can enter.

A leaf spring 25 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned retaining hole 16 and fixes the lid 3 to the case 2 . The tip of the protrusion 24 is provided with an inclined portion 26 that engages with the release member of the lid 3. FIG. 3 shows a state in which the disc 6 and the lid 3 are assembled into the case 2, and the disc 6 is locked in the depth and width directions. Furthermore, since the lid 3 engages with the case 2 to close the opening 7, the disc 6 is housed without falling out of the case 2.

FIG. 4 is a detailed view of the lid 3, in which the shape of the side facing the disk 6 is formed, for example, into 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 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 4° above the chassis near the case insertion opening 51. Reference numeral 66 is an expansion member that is supported by the fixed base 8o so as to be movable up and down, and the support member 61 fixed to the fixed base 80 allows the case 2
expand. The fixed base 8o is fixed to the chassis 4°. The engaging member 62 is attached to a fixed base 8° 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 numeral 99.100 denotes a latch member, which is supported by pins 105.106 so as to be horizontally rotatable with respect to the movable base 91, and is attached to the notch 1 of the lid 3.
9 to lock and stop M3. A leaf spring 94 is attached to the movable base 91 at a position where it comes into contact with the lid 3. 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 clamping mechanism 90 has rails 45,
46.47, it is supported so as to be movable in the front-rear direction (X1, X2 directions). The rail 45 has V@ on both sides as shown in FIG. 6(B), and a roller 92 rotatably provided on a movable base 91 is fitted into the groove 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 belt 111 by a connecting piece. belt 111
is hung between gears 112 and 113, and a motor 114 with a speed reducer drives the belt 111 to transport 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 housing 12
Similarly to the disk holding mechanism 90, the disk holding mechanism 90 is also configured to be moved in parallel over the disk 6 placed on the turntable 130 by a motor 124 and a belt (not shown), and to pick up 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 with the disk 6 in the Yl and Y2 directions (see FIG. 6(A)) so as to hold the group guard 33 of the disk 6.
It is configured to be able to hold a larger range than the diameter of the group guard 33. Further, the support 180 is configured to be in a state below the turntable 130 and a state in which it can protrude above the turntable 130 and support the disc 6 held by the disc holding mechanism 90.

Reference numeral 134 denotes a disk elevating mechanism, which is constructed as follows. The lift arm 142 is supported by a shaft 141 and a bearing 138 so as to be vertically movable. By rotating the lift arm 142, the lift ring 136 (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 drive motor 165 via a worm 166. 162 is a lever, and shaft 179. Bearing 1
63 for horizontal rotation, and is biased by a spring 172 in the P1 direction. The levers 167.168 each have a shaft 178. It is rotatably supported by bearings 170 and 171. Each lever 162°167.1
68 are interlocked with the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 15). 190
is a reversing lever for switching the operation of the disk holding mechanism 90. The reversing lever 190 is horizontally rotatably supported by a shaft 194, biased in the Q direction by a spring 192, and positioned by a block 191.

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

The disc holding mechanism 90 will be explained in detail.

7(A)-(C), FIGS. 8(A), (B), FIG. 9, and FIG. 10 are explanatory diagrams of the structure and operation of the disk holding mechanism 90. The movable base 91 is provided with contact portions 91a on the left and right sides that contact the lid 3. 92 is four rollers, 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 heath 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 neck hanging members that engage with the notch 19 of the lid 3 to hang the lid 3.

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

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

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 M3.
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 110' connects the belt 111 and the disk holding mechanism 90.

The operation of the disk holding mechanism 90 will be explained. The disk holding mechanism can take the following three states.

The first state is "lid/disc holding state J".

This is a state in which the lid 3 is closed and the disc 6 is clamped as shown in FIG. 7(A). In this state, the sliding member 10
2 is located closest to the right in the figure (in the direction of arrow Y2) among the three states. Neck hanging member 99. 100 Hakam 1113. 114 yo.

By guiding the driven ends 115 and 116, respectively, the lid 3 is in a restricted position as shown in the figure.

The leaf spring 94 is in contact with the lid 3 as shown in the figure, and is in a state where the lid 3 is biased forward (arrow X, force direction). The lower clamp arm 96 is in a state where it is holding the group guard 33 of the disk 6 as shown in FIG. The end 96a is in a position where it comes into contact with the group guard 33. Also, as shown in FIG. Since it is biased toward the right side of the figure (arrow Y1 direction), the lower clamp arm 96 is biased as shown in FIG. 7 (B
) is biased in the direction of arrow 98b, and the group guard 3
It is holding 3.

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 neck hanging members 99, 100, the leaf spring 94, and the rotating member 101 are all in the same state as [lid/disk holding state J, and the lid 3 is not hung as shown in FIG. . However, in this state, since the sliding member 102 has moved from the "lid/disk holding state" 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 cam grooves 113 and 114, respectively, and are in an open state as shown in FIG. The lower clamp arm 96 is in the same state as in FIG. 8, and is open and does not clamp the disk 6. The rotating member 101 is in a circular position, and the contact portion 101b and the protrusion 102b of the sliding member 102 are in contact with each other, and the sliding member 102 is moved to the right side (in the figure) by the biasing force of the spring 110.
It is regulated so that it does not slide in the Y2 direction).

In this way, the disc holding mechanism 90 can take three states: "lid/disk holding state", "lid holding state", and "non-holding state". In all these three states, the sliding member 1
It is regulated at the position in the sliding direction (Y, Y2 direction) of 02. That is, by changing the position of the sliding member 102 in the Y and Y2 directions, the "lid/disc holding state" and the "lid 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 "lid holding state" 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 denotes a fixed base of the case expansion mechanism, which is fixed to the chassis 40 of the playback device and is located near the insertion opening 51 as described above. The support member 61 is fixed to a fixed base 80. Reference numeral 62 denotes an engaging member, which is supported by a bearing 63 and a pin 74 fixed to the fixed base 80 so as to be vertically movable. Further, the retaining member 62 is biased by the spring 72 in the direction of the arrow W1 in FIG. 11(B). The expansion member 66 is attached to the support member 61 as shown in the figure.
It 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, each with a pin 71. When To is engaged, arrow Y in the figure,
, and is configured to slide linearly in the Y2 direction. Furthermore, the slider 65 is restricted at its center by the abutting portion 63a of the bearing 63, as shown in FIG. 11(C), and is configured to flex only slightly downward. Further, the slider 65 is provided with two engaging portions 69, and with this configuration, the expanding member 66 is rotated in the direction of the arrow V2 in the figure by the slider 65 working to the right in the figure (in the direction of the arrow Y2). , it also rotates in the direction of arrow V1 by working to the left in the figure (in the direction of arrow Y1). Further, a spring 73 is applied between the slider 65 and the fixed base 80 as shown in the figure, and always urges the slider 65 to the right side (in the direction of arrow Y2) in the figure. 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 expanding mechanism 60. Next, it will be explained how this case expanding mechanism 60 expands the case 2 and engages the case 2 to substantially fix it to the playback device. . When the case 2 is not inserted into the playback device, the case expansion mechanism 60 is in the state 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 restrained 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 position shown in FIGS. (13) and (C). The case 2 is attached to the case expansion mechanism 60 in this state.
is guided and inserted into the case guide 75 through the insertion opening 51 of the playback device main body 50.

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 while being guided by the case guide 75 in the direction of arrow 2 is expanded as shown in FIG. 13(B). Then, when the case 2 is further inserted, the engaging member 6
The contact end 62a of the case 2 contacts the open end of the case 2, the engagement member 62 rotates in the W2 direction in the figure, and the engagement end 62b of the engagement member 62 rotates as shown in FIG. 13(C). Engagement hole 1 of case 2
3. In this case, the notch 65 of the slider 65
c and the engaging member 62 are no longer in contact with each other, and the slider 6
5 slides to the right (Y2 direction) as shown in FIG. 12(B) by the biasing force of the spring 73. In the state shown in FIG. 12(B), the expanding member 66 rotates in two directions (1) as shown in the figure, so that it does not interfere with taking out 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 engaging 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 7G 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 has a means for expanding the case 2 as well as a means for engaging the case 2, and moreover, by moving the slider 65, the case 2 can be easily engaged with the case 2. can be canceled.

Further, in this embodiment, as shown in FIGS. 11 and 12, a microswitch 200 is placed at a position where it can come into contact with the slider 65.
Therefore, when the case 2 is inserted into the expansion mechanism 60, the case 2 is engaged, and the slider 65 is operated, the microswitch 200 can detect that the case 2 is expanded and engaged. The structure is as follows. 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 disengaged state.

The cam unit 160 will be explained in detail.

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

The lever 162 is connected to the shaft 179, and the levers 167 and 168
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 a400
They operate in conjunction with each other. The lever 167 is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. The lever 168 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling member 174 (not shown in FIG. 14, see FIG. 16(C)), and can rotate the shaft 181. This is to raise and lower the support 180. The lever 162 is biased in the B1 direction by a coil spring 163, so the interlocking member 404 provided on the lever 162 is always in the cam groove and biased in the B1 direction.

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

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

It is composed of 405c and 405d. Cam groove diameter P
1 is greater than B2. Lever 167.168
The cam grooves 400 that drive the cam grooves 400 are provided to operate according to the timing chart shown in FIG. 10, respectively.

Next, the operation of the cam unit 160 will be explained with reference to FIGS. 8 and 16, focusing on the operations of the cam 161 and the lever 162. 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 169, 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 76 by the coil spring 163.
The interlocking member 40"4 is in a neutral state without contacting the inner wall surface of the cam groove 400. This state is the state t1 in FIG. 15 (hereinafter referred to as "t1" in FIG. 15). (The status is shown in the form of tx in the timing chart.)

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 β2 is smaller than Ill, lever 1
62 moves in the B2 direction. Slider 65 is stopper 4
10, it does not move, and only the lever 162 moves. Further rotation of the cam 6 results in the state shown in FIG. 16(D). When the cam 161 rotates further from FIG. 16(C), the interlocking member 404 moves to the 16th
As shown in Figure (D), the lever 162 is located at the branch point between the cam paths 405a and 405c, and the lever 162 is urged to rotate in the B1 direction by the spring 163, and in this state, the abutment member 76 is engaged. It is separated from the pin 169, and as shown in FIG. 16(D), the engagement pin 169 is in a state where it can further rotate in the B1 direction. Therefore, the interlocking member 404 is urged into contact with the inner wall surface of the cam path 405a by the coil spring 163, and when the cam 161 rotates in the A2 direction in this state, the interlocking member 404 enters the cam path 405a. When the cam 161 further rotates, the lever 162 moves in the B1 direction shown in FIG. 14, and the lever 168 moves in the B1 direction. By moving the lever 162 in the direction P, the slider 65 is moved to the state shown in FIG. 14(A), and the state in which the engagement member 62 engages the case 2 is released (state t).
. At the same time, the lever 168 moves in the direction B shown in FIG. 14, and the support 180 descends (1. position B).

When the cam 161 further rotates, the lever 167 moves to the 14th position.
It moves in the B1 direction in the figure, lowers the elevating mechanism 134, and places the disc 6 on the turntable 130 (state 15).

When the cam 161 further rotates, it enters the t6 state, and 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 (16 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.

When the turntable 130 stops and 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 opened. Almost fixed to the expansion mechanism (
17 states). This is the state shown in FIGS. 9 and 16(B). The microswitch 200 detects this state,
The motor 165 is energized so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above. When the cam 161 rotates, the lever 167 is first pulled in the direction B2 in FIG.
Support above 0. The lever 168 is pulled, and the support 180 rises to support the disk 6 (state t9). When the cam 161 further rotates, the lever 167 moves to B.
move in one direction and lower the elevating mechanism 134 (t10
situation). Thereafter, the disk 6 is recovered into the case 2 by the disk holding mechanism 90. During its operation cam 16
1 rotates, the lever 168 moves in the B1 direction, and the support 180 descends (state t11). Furthermore, cam 161
When the linking member 404 rotates, the interlocking member 404 faces the branching member 403b and enters the cam path 405b, as described above, and enters the 16th cam path 405b.
The state shown in FIG. 8A is reached, the lever 162 moves the slider 65, the substantially fixed state of the case 2 is released, and the state shown in FIGS. 8 and 16A is achieved.

To briefly summarize each state in Fig. 15, to is the standby state, tl is the case inserted state, t2 is the lift raised position, t3 is the support raised position, t81 is the start of slider movement, t4 is the slider lock (case 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,
tIo is the lift lowering position, [, 1 is the support lowering position,
'+2 indicates slider lock (case detachment).

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

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

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

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

Further, the support 180 is in a downward position as shown in FIG. 23(A).

Next, the case 2 passes through the insertion opening 51 and moves to the guide 52°53.
When the case 2 is guided and inserted into the case expansion mechanism 60, the opening of the case 2 is expanded by the expansion member 66, and in this state, the retention hole 13 is engaged by the retention member 62, and the playback device main body 50 It is approximately fixed at .

Next, the micro switch 20 in this state as shown in FIG.
0 is detected, the motor 114 operates, and the disk holding mechanism 90 is moved forward (in the figure) by driving the heald 111.
X, 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/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 transferring the disk holding mechanism 90 just by doing so.

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

As shown in the figure, the lid 3 and the disk 6 are held by a disk holding mechanism 90 and pulled out from the case 2. Now, when the disk 6 is pulled out halfway as shown in this figure, the 23rd disk
As shown in Figure (B), the support 180 rises and the disk 6
The group guard 33 is held. At this time, since the support 180 only contacts the group guard 33, it does not damage the signal surface of the disk 6.

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

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

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

A side view of this state is shown in FIG. 24 (A). Next, as shown in FIG. 24 (B), the support 180 is lowered by the operation of the cam unit 160. Next, the disk holding mechanism 90 When the disk is 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.
The sliding member 102 works to the left (X1 direction) and enters the above-mentioned "mold 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). Thereafter, when the mounting ring 133 is lowered by the operation of the cam unit 160, the disc 6 is mounted on the turntable 130. Next, the cam unit 160
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 lid holding members 41 and 42 as shown in FIG. 21, it will not hang down and come into contact with, for example, the arm housing 120 while traveling.

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

Next, the motor 114 drives the belt 111, and the disk holding mechanism 90 is now moved forward (in the direction of arrow X1), shifting to the state shown in FIG. 24(B). Then, the support 1'80 is raised by the operation of the cam unit 160, 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 is moved forward (X) while holding the lid 3 and the disc 6.

motor 114. It is transported by belt 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 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 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 operates again, and the engagement member 62 of the case 2A case expansion mechanism 60
The case 2 is disengaged from the case 2, the disc 6 is stored in the case 2, and the case 2 can be taken out from the playback device main body 50 with the lid 3 engaged with the case 2.

In this way, the user attaches the case 2 to the playback device main body 50.
By just slightly inserting the disc 6, the disc 6 is automatically taken out from the case 2 and playback becomes possible, and the disc 6 is also automatically stored in the case 2. Therefore, it is convenient to use since there is no need to manually move the case 2 back and forth significantly, and reliable operation can be expected even under severe use by the user. Furthermore, 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 can be made 5° thinner than when the entire case 2 is pulled in. be.

The reproducing apparatus of this embodiment operates in this manner, and these operations can be controlled by, for example, a microcomputer. In other words, the disk holding mechanism 9 is controlled by a microcomputer and a normal control circuit.
0 and the arm housing 120.
The above operation can be performed by sequentially operating the motor 124 that drives the cam drive motor 124 and the cam drive motor 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 slightly inserts the case into the main body of the playback device, the recording medium is automatically taken out from the case and can be played. The structure of the driving means for the member that latches the recording medium and the member that clamps the recording medium is simple, and there is no deviation in their operations, thereby preventing malfunctions.

[Brief explanation of the drawing]

Figures 1 (A) and (B) are a plan view and a sectional view, respectively, of a disk that can be used in an embodiment of the present invention, and Figures 2 and 3 are exploded perspective views, respectively, of a disk case that accommodates the disk. 4(A) to 4(C) are respectively a front view, a plan view, and a side view of the lid of the disc case. FIG. 5 is an external perspective view of an embodiment of the present invention. Figure 6(A) is a perspective view of its schematic configuration, Figure 6(B) is a sectional view of the rail portion of the movable base, and Figure 6(C) is a perspective view of the cam unit and ascending mechanism. , FIGS. 7(A) to (C) are a plan view, a sectional view, and a front view of the lid/disk holding state of the disk holding mechanism, and FIGS. 8(A) and (B) are the same disk holding mechanisms. A plan view and a cross-sectional view of the mechanism in the lid holding state, FIGS. 9(A) and (B), and FIGS. 10(A) and (B) respectively a plan view and a cross-sectional view of the disk holding mechanism in the non-holding state. is also an operation explanatory diagram showing the relationship between the sliding member of the disc clamping mechanism and the clamp arm,
Figures 11 (A) to (C) are a plan view, cross-sectional view, and front view of the case expansion mechanism in the state where the case is not inserted, and Figures 12 (A) to (C) are the case expansion mechanism. A plan view, a sectional view, and a front view of the mechanism in the case insertion state, FIGS. 13(A) to (C) are also explanatory diagrams of the operation of the case expansion mechanism, and FIGS. 14(A) and (B) are the same. FIG. 15 is a time chart of the cam unit, FIGS. 16 (A) to (D) are illustrations of the operation of the cam unit, and FIGS. 17 to 22 are the playback device. Operation explanatory diagram as seen from above, No. 23
FIGS. 24A and 24B 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... Disk (recording medium), 13... Engagement hole, 4°... Chassis, 50... Playback device main body, 5
1...Case insertion port, 60...Case expansion mechanism, 6
2... Engaging member (case engaging means), 62a... Contact end, 62b... Engaging end, 65... Slider, 80
...Fixed base, 90...Disk clamping mechanism, 91
...Movable base (transfer means), 95...Upper clamp arm (clamping member), 96...Lower clamp arm (clamping member), 99,100...Latching member, 102... Sliding member, 102C... Wedge-shaped part (cam part), 107
．． 108...Release member (lid release means), 113, 11
4... (cam part), 120... arm housing,
134...Disk lifting mechanism, 160...Cam unit, 180...Support, 200-205...Micro switch Figure 10 Figure 13 (A) Figure 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. The recording disk playback device used includes a playback device main body having a playback means, a lid release means for releasing the connection between the opening of the case body and the lid, and a releasably latched lock on the lid. A latching member, a clamping member that clamps the recording medium, a transfer means for transporting the latching member and the clamping member within the playback apparatus main body, and a latching member that is provided to be slidable back and forth. and a latching state in which the latching member has a cam portion that contacts the clamping member and locks the lid by sliding, and a non-latching state in which the latching member does not latching or locking the lid. A recording disk reproducing device characterized by comprising a sliding member that sequentially performs a clamping state in which the clamping member clamps the recording medium and a non-clamping state in which the clamping member does not clamp the recording medium.