JPS61211871A - Recording disk reproduction device - Google Patents

Abstract

PURPOSE:To prevent an accident by a miss operation of an user by providing a case engaging means for detachably fixing a case body and a control means for controlling the case body of the engaging means to an engaging condition capable of engaging and to a dis-engaging condition incapable of engaging. CONSTITUTION:An engaging member 62 is rotatably supported to a fixed base 80 through a shaft 74 and a bering 63 and engages with an engaging hole 13 of a case 2. A movable base 91 of a disk holding mechanism 90 is movably supported forward and back ward (X1*, X2 directions) by rails 45, 46, 47. The rail 45 has at both sides thereof V grooves and rollers 92 rotatably provided to the movable base 91 are fitted into the V shape grooves of the rail 45. A rotating member 101 abuts on an abutting section 101b and a protrusion 102b of a slide member 102 from sliding in a direction of Y2 by an energizing force of a spring 110.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a recording disk reproducing apparatus that automatically draws a disk-shaped recording medium into the reproducing apparatus and reproduces the medium.

Conventional technology 2 - Conventionally, in playback devices for high-density recording discs, such as video discs, as shown in Japanese Patent Application Laid-Open No. 111158,
Many playback devices employ a so-called semi-automatic loading method, in which a disc is manually removed from a cylindrical disc case.

Problems to be Solved by the Invention However, with the semi-automatic loading method configured as described above, when manually inserting and removing the coos, the case must be moved back and forth significantly, and the user There have been various problems such as the difficulty of constructing a loading mechanism that operates perfectly even under severe use. Therefore, the present invention provides a disc case that allows the user to insert the disc case slightly into the main body of the playback device. The recording medium is automatically removed from the case and playback is possible, and the autorope ink prevents malfunctions even if the case is pushed into the disk insertion slot by mistake. The purpose is to provide a recording disc playback device.

Means for solving the problems and the technical means of the present invention for solving the above-mentioned problems are: a case engaging means for removably fixing a case body to a recording disc playback device; and a case body of the engaging means. The recording disc reproducing apparatus is provided with a regulating means for regulating the disc into a temporary state in which it can be engaged and a disengaged state in which it cannot be engaged.

Function: This technical means detects whether the case can be inserted or not, and if it is not possible to insert the case, the case engagement means is restricted by the restriction means, thereby preventing accidents caused by user's incorrect operation. can be prevented.

Embodiment Hereinafter, a recording disk reproducing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

Examples of this invention are shown in FIGS. 1 to 3 and 8 to 24. FIGS. 4 to 7 respectively show the configurations of a disk and a disk case that can be used in the recording disk reproducing apparatus according to this embodiment. .

In FIG. 5, the disk 6 has a center hole 34, a bank-like outer group guard 33, and an inner group guard 3.
2 is provided. In FIG. 6, 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 x1 into the device. It is composed of a lid 3. The case 2 and the lid 3 are made of styrene resin, for example. The inside of the case 2 is a flat disk storage space 6 over its entire width and length, and the disk 6 is stored in this space 6.

This space 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 consists of a flat plate part 8 having groove-like recesses 17 on the left and right sides, and protruding parts 9, 10, and 11 along the three sides of the flat plate part 8. At the center near the opening 7 is an engagement hole 1 into which a convex portion of the lid 3 to be described later engages.
3 is formed, and engagement holes 16 are formed on the left and right sides of the opening 7, into which the protrusions of the lid 3 engage.

A clamp portion 18 is provided at the end of the lid 3 to close the opening 7 of the case 2 when the lid 3 is engaged and fixed to the case 2.
A notch 19 into which a later-described expansion member can enter is provided symmetrically to the center line (O).

A leaf spring 26 is further provided at the end of the lid 3 and has a protrusion 24 at its tip that engages with the aforementioned engagement hole 16 and fixes the lid 3 to the case 2 . The tip of the protrusion 24 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. In addition, since the lid 3 engages with the case 2 and closes the opening 7, the disc 6 is stored inside the case 2 without falling out. Figure 4 is a detailed view of the lid 3. The shape of the side facing the disk 6 is, for example, a circular arc in which the gaps at both ends are 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 two directions during the playback operation, which will be described later. 3 shows the recording disk 71) recording device of this embodiment.

As shown in FIG. 3, an exterior case 50 of the playback device main body 6o
A case insertion 1] 51 is provided at a.

FIG. 1 (5) and FIG. 2 show the basic configuration of a recording disk reproducing apparatus. In FIG. 1(3), 130 is a turntable on which the disc 6 is placed and brought into playback mode. Reference numeral 131 denotes 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 against the turntable 130. Reference numeral 40 denotes a chassis to which guides 52 and 53 for guiding the case 2 into the playback device main body 60 are fixed. Guide 52a.

53a is its guide groove. Reference numeral 60 denotes a case expansion mechanism, and o66, which is fixed on the chassis 4o near the case insertion opening 61, is an expansion member supported by a fixed base 80 so as to be movable up and down, and fixed to a fixed pace 80. A fixed space 8o for expanding the case 2 and the supporting member 61 is fixed to the chassis 4o. 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. 9o is a disk clamping mechanism, and 096 is an upper clamp arm, which is formed integrally with the movable base 91. A lower clamp arm 96 is supported by a bearing 97 so as to be movable up and down, and the disc 6 is clamped between these arms. 99.100 is a hanging member, bottle 105,1
06, it is horizontally rotatably supported on a movable base 91, and engages with the notch 19 of the lid 3 to lock the lid 3. 94 is a leaf spring, and 0107, 10 is attached to the movable base 91 at a position where it comes into contact with the lid 3.
B is a claw-shaped release member formed integrally with the movable base e1, and functions to engage with the slope 26 of the protrusion 24 of the lid 3 to release the engagement between the lid 3 and the case 2.

The movable base 91 of the disk clamping mechanism 90 has rails 45,
46 and 47 so as to be movable in the front and rear directions (X4 and X2 directions). The rail 46 has V-grooves on both sides as shown in FIG. Therefore, the disk holding mechanism 90
．． It will never deviate from 47. The movable base 91 is fixed to a belt 111 by a connecting piece. The belt 111 is hung between gears 112 and 113, and the belt 111 is driven by a motor 114 equipped with a speed reducer, and the disc clamping mechanism 90 is driven. to be transferred.

Reference numeral 120 denotes an arm housing, which is supported by a rail 126° shaft 122 so as to be movable in the left and right directions (Y4 and Y2 directions) on the turntable 130. Similarly to the disk holding mechanism 90, the arm housing 120 is also
A motor 124 and a belt (not shown) transport the disc 6 in parallel over a turntable 130, and the signal from the disc 6 is picked up.

In FIG. 2, 18o is a support that supports the disk 6, and a shaft 181. It is supported by a bearing 1829 so that it can freely move up and down (arrow yi, M2 direction). The support 180 is provided in two parts, left and right, as shown in the figure, and is arranged in the direction of arrow Y1 to hold the group guard 33 of the disc 6. In the Y2 direction (FIG. 1, 4), it is configured to be able to hold an area larger than the diameter of the group guard 33 of the disk 6. Further, the support 180 is configured so that it can be placed under the turntable 130 or extended above the turntable 130 to support the disk 6 held by the disk 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 disc 6 is moved onto the turntable 1 by the mounting/guts 33.
30 and the turntable 1
30 and is moved up and down.

160 is a cam unit, the above-mentioned support 18o,
Disc lifting mechanism 134. The case expander 1o drives the mechanism 60. Cam 161 is shaft 1
76 for horizontal rotation, and the worm 166
It is configured to be rotated by the power of a cam drive motor 166 via the cam drive motor 166. 162 lever lever, shaft 179. It is horizontally rotatably supported by a bearing 163 and urged in the P1 direction by a spring 172. Lever 16
7 and 168 are the shaft 7) 17a and the bearing 17, respectively.
The levers 162, 167, and 168 rotatably supported by the cam 161 are respectively linked to the cam 161 so as to operate according to the cam diagram of the cam 161 (FIG. 16). This is a reversing lever for switching the operation. The reversing lever 190 is horizontally rotatably supported by a shaft 194, and is supported by a spring 1.
92 in the Q direction and positioned by block 191.

140 is a turntable driving motor. Figure 1 (
In c), 2oo to 205 are microswitches, and 0 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. Microsinches 202 to 205 are switches for detecting the position of the disk holding mechanism 9o.

The disk holding mechanism 9o will be explained in detail.

To Figure 7 ~ (Q, Figure 8^, Φ), Figure 9 and Figure 1
FIG. 0 is an explanatory diagram of the structure and operation of the disk holding mechanism 90. The movable base 91 has a contact portion 9 that contacts the lid 3.
1a are provided on the left and right. 92 is rotatably supported by four rollers on the reed and movable pace 91, and the rail 45
and are engaged as shown in FIG. 7 (q).A roller 93 is rotatably supported on the opposite side of the movable pace 91.9
Reference numeral 4 is a leaf spring, which is attached to a position where it comes into contact with the lid 3.

Reference numeral 95 is located at the side of the upper clamp, and is formed integrally with the movable pace 91, and has claws 96 & 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 numeral 99,1ω is a latch member that engages with the notch 19 of the lid 3 to lock the lid 3.

The latching members 99 and 100 are attached to the bins 106 and 106, respectively.
It is supported by a movable base 91 so as to be horizontally movable. Further, each of the latching members 99 and 100 is provided with driven ends 116 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 the bins 105, 109 to arrow Y4. Alternatively, it moves approximately linearly in the Yi direction. A roller 103 is rotatably attached to the sliding member 102 on the left side of the center in the figure.
Several protrusions 102b are provided, and a contact portion 102 is provided on the opposite side.
a and a spring hook 110a. The protrusion 102b is configured so that it can come into contact with the contact portion 101b of the rotating member 101 (see FIG. 7, 0) through a square hole 91b formed in the movable base 91. In addition, spring hanging and movable pace 91
The sliding member 102 is always biased in the direction of the arrow Y by the spring 110 applied between the spring hooks 112. Furthermore, the sliding member 102 is provided with a wedge-shaped portion 102c, as shown in FIG.

The wedge-shaped portion 102C is configured so as to be able to come into contact with the contact end 96a of the lower clamp arm 96.

The rotating member 101 is connected to the movable base 91 by the fulcrum 101a.
The rotating member 1o1 is supported by a spring 104 so as to be able to rotate horizontally in the direction of the arrow 104a (FIG. 7, p).
In addition to the contact portion 1o1b, a contact end 1o1C that can come into contact with the lid 3 is formed, and the contact portion 1o1b has a sloped shape as shown in the figure.

Reference numerals 107 and 108 denote release members provided at both ends of the movable pace 91, which engage with the inclined portion 26 of the protrusion 24 of the lid 3 to release the lid 3.
This is to release the engagement between the case 2 and the case 2. Reference numeral 109 is a contact plate, which is provided at a position where it can come into contact with the microswitches 202-206. A connecting piece 110 connects the belt 111 and the disk holding mechanism 90.

The operation of the disc clamping mechanism 90 will be explained. The disc clamping mechanism can be in the following three states.

The first state is "lid, disc holding state".

To do this, hook and stop the lid 3 as shown in Figure 7-4, and
(- This is a state in which the sufu 6 is held between the legs. In this state, the sliding member 1
02 is the furthest to the right of the three states (in the direction of arrow Y2)
It is located close to. The latching member 99.degree. 100 is in a position where the lid 3 is restricted as shown in the figure by having driven ends 115 and 116 guided by cam grooves 113 and 114, respectively.

The leaf spring 94 is in contact with the lid 3 as shown in the figure, and the zero rotation member 101 is in a state where the lid 3 is biased forward (in the direction of arrow X, force) and is in contact with the contact end 101C.

The lower clamp arm 96 is attached to the disc 6 as shown in FIG.
In this state, the claw 95a of the upper clamp arm 96 and the lower clamp arm 9
The contact end 96a of 6 is in a position to contact the group guard 33. Also, as shown in )' in FIG. 10, the contact end 96a is in contact with the wedge-shaped portion 102a, and the sliding member 102 is urged to the right (direction of arrow Y) in the figure by the urging force of the spring 110. Therefore, as a result, the lower clamp arm 9
6 is biased in the direction of the arrow/eab in FIG. 7) and grips the group guard 33.

16 - The second state is the "lid holding state". This is a state in which the lid 3 is stopped and the disc 6 is not clamped, as shown in Figure 8^. In this state, the sliding member 102Fi is in an intermediate position among the three states.

Latch portion 44'99, 100. Leaf spring 94. Both of the rotating member 101 and the rotating member 101 are in the same state as the "lid/disk holding state", and the lid 3 is not hooked as shown in FIG. has moved to the left side (Y direction) in the figure from the lid/disk holding state, so the wedge-shaped part 1 is no longer visible as shown in Fig. 10 (B).
02C and the contact end 96a are not in contact with each other. Therefore, the lower clamp arm 96 opens in the direction of the arrow 98a as shown in FIG. It is in a state where it does not.

The third state is “non-retention state J. 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 lid stop members 99 and 100 are in an open state as shown in FIG. 9, with the driven salts 115 and 116 being guided by the cam grooves 113 and 114, respectively.

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 position as shown in the figure, the contact portion 1o1b and the protrusion 102b of the sliding member 102 are in contact with each other, and the sliding member 102 is slid to the right (Ylj direction) in the figure by the biasing force of the spring 110. It is regulated not to do so.

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 (Y4, Y2 direction) of 02. By changing the position of the tab sliding member 102 in the Yl and Y2 directions, the "lid/disk holding state j1" is achieved.
The disk holding mechanism 90 can be changed into three states: a lid holding state J and a "non-holding state". However, the above 3
Among the states, the "lid holding state" is when the sliding member 102 is moved to 17 in FIG. 8 by some means against the force of the spring 110.
It is something that can be maintained when it is regulated to the 1 state.

The case expansion mechanism 60 will be explained in detail.

FIG. 11 (Q), FIG. 12 (8) to (Qtj113, FIG. 4 (Q) are explanatory views of the structure and operation of the case expansion mechanism 6o.

Reference numeral 80 indicates a fixed pace of the case expansion mechanism, which is fixed to the chassis 40 of the playback device and is located near the insertion port 61 as described above. The support member 61 is fixed to a fixed pace 80. Reference numeral 62 denotes an engaging member, which is supported by a bearing 63 and a pin 74 fixed to the fixed pace 80 so as to be vertically movable. Further, the engagement member 62 is biased by the spring 72 in the direction of the arrow W in FIG. 11(B). Expanding member 6
As shown in the figure, it is provided at a position corresponding to the support member 61, and is supported by a bearing 67 fixed to the fixed pace 8o so as to be vertically movable. The expansion member 66 has an arm 64
and an abutting end 68 are formed.

Reference numeral 65 is a slider, and as shown in FIG. 11, the slider 65 is slidably attached to the fixed pace 8o. The slider 66 is provided with elongated holes aaa and ssb, and pins 71 and 70 are engaged with each of the slots Y1 and Y1 in the figure. Y2
It is configured to slide linearly in the direction. In addition, the slider 65 is configured such that its central portion is restricted by the abutting portion 63a of the bearing 63, as shown in FIG. Two engaging portions 69 are provided, and with this configuration, the expanding member 66 is rotated in the direction of arrow v2 in the figure by the slider 66 acting on the right side (direction of arrow Y2) in the figure, and also rotates on the left side in the figure. (Action is made in the direction of arrow Y, and the force acts in the direction of arrow V, causing it to rotate in the direction of arrow V. Also, as shown in the figure, a spring 73 is applied between the slider 66 and the fixed pace 8o. 66 is always biased toward the right side of the figure (in the direction of arrow Y2).

Further, the slider 66 is provided with an abutting end 76 and a notch 66c. Reference numeral 76 denotes a case guide, which guides the case 22 and is fixed to the fixed pace 80. The above is the configuration of the case expansion mechanism 60, but next we will explain how this case expansion mechanism 6o is constructed. Expanding the case 2 and engaging the case 2 with the playback device so as to substantially fix it will be explained. When the case 2 is not inserted into the playback device, the case expansion mechanism 60 is in the state shown in FIGS. 11(8) to 11(q).

In other words, the notch 66 of the slider 66 and the engaging member 62 are in contact with each other, and the slider 65ij is restricted to the state shown in the figure against the biasing force of the spring 73. Therefore, the expanding member 66
The case 2 is regulated in the position shown in Figure 1 (B) and (Q).The case 2 passes through the insertion opening 51 of the playback device main body 5o into the case expansion mechanism 60 in the opened state, and the case guide 7
6 and inserted.

FIGS. 13-4 (q) show the process of inserting the case 2 into the case expansion mechanism 60.

The 13th part shows the case expansion mechanism 60 in the same state as in FIGS. 11(5) to 11(q).

When the case 2 is inserted into the case expansion mechanism 60 in this state in the direction of arrow x2 as shown in the figure while being guided by the case guide 76, the vicinity of the opening of the case 2 first contacts the expansion member 66, and 2 is expanded as shown in Figure 13).
Then, when the case 2 is further inserted, the engaging member 62
The abutting end 62a of the case 2 comes into contact with the open end of the case 2, and the engaging member 62 rotates in the direction W)j in the figure, causing the engaging member 62 to engage as shown in FIG. 13(q). The mating end 62b is the engagement hole 1 of the 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 by the biasing force of the spring 73. FIG. 12 (In the flat state, the expansion member 66 rotates in the v2 direction as shown in the figure, and is in a state where it does not hinder the removal of the disc 6 from the case 2. The state of case 2 when it is closed, that is, the state of case 2 when it is expanded, is shown by the dashed-dotted line.

In this state, the engaging member 62 is restricted by the slider 66 so as not to rotate in the W direction as shown in FIG. 12(B). Next, for example, the abutment end 76 of the slider 66 is moved to the left side (Y) of the figure by some means.

direction), the slider 65 moves in the direction of arrow Y, and the notch 65c moves into the engagement member 6 as shown in FIG.
2, the engaging member 62 is rotated in the direction of arrow W1 by the biasing force of the spring 72, and the engagement between the engaging hole 13 of the case 2 and the engaging member 62 is released. .

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. It is possible to cancel the connection.

In addition, as shown in FIGS. 11 and 12, the microswitch 200 is placed at a position where it can come into contact with the slider 66.
Therefore, when the case 2 is inserted into the expansion mechanism 6o, the case 2 is engaged, and the slider 66 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 e2, the movement of the engagement member 62 is regulated by the slider 66 as described above, so the case 2 will not easily come off.
The playback device 5olj is in a substantially fixed state.

Further, the microswitch 200 detects whether or not the case 2 is engaged with the engagement member 62, and a lamp 6oO serves as a notification means to notify this detection state.
(FIG. 3) is provided on the front of the playback device main body 6o. Therefore, the user can easily check whether the case 2 is engaged or not. The lamp SOO is connected so that it continues to light up when the engaging 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 explanatory diagrams of the operation, and FIG. 16 is a timing chart explaining the movement of the lever. In FIG. 14, the cam 161 is horizontally rotatably supported by a shaft 176, and a bell) 175. The power of the cam drive motor 166 is transmitted through the worm 166, and the cam drive motor 166 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 (see figure) that engages with the cam 1w400 of 61 is provided, and when the cams 16 and 1 rotate, they each operate in conjunction with the cam groove 400. The lever 167 is
It is connected to the elevating mechanism 134 via a connecting member 173, and operates the elevating mechanism 134. Lever 16
8 is coupled to a coupling member 184 fixed to the shaft 181 via a coupling portion 4'A174 (not shown in FIG. 14, see FIG. 2 8). 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 engagement pin 169 is provided on the lever 162 so as to come into contact with the contact member 76 provided on the slider 66 described above. The lever 162 is rotated by the cam 161, moves the slider 66 in the Y direction against the spring 73, and returns the slider 66 to the state shown in FIG. 14(A).

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

405C, 4o5d, and locking walls 406a, 406b. The cam groove diameter l is larger than 12 mm. The cam grooves 400 that drive the levers 167 and 168 are provided to operate according to the timing chart shown in FIG. 15, respectively.

Next, we will explain the operation of the cam unit 160, focusing on the operation of the cam 161 and the lever 162, in Figures 8g8 and 16.
This will be explained using figures. FIG. 14 shows a state in which the case 2 is not inserted into the playback device, and the corresponding cam 161
and the interlocking member 404 are in the state shown in FIG. 16-4. Case 2
is inserted, the slider 66 moves and the contact member 76
By moving the engagement bit/169, [
state. The slider 66 is stopped by a stopper 410, as shown in FIG. 14(B), and will not move beyond that point. This state is the state shown in FIG. 16). The engagement pin 169 is urged by the coil spring 163 to contact the contact member 76, and is in a neutral state without contacting the interlocking member 404Fi or the inner wall surface of the cam groove 400. This state is state t in FIG. 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 166 is energized and the cam 161 moves in the A2 direction shown in FIG. 14(B). The levers 167 and 168 (see FIG. 14) are rotated according to the timing chart shown in FIG.
The support 18o and the lifting mechanism 134 rise to support the disk 6 above the turntable 130 (state 12.13). At this time, the cam groove diameter is 1! , JtZ l! Lever 16 because it is smaller than 1
2 moves in the B2 direction. The slider 66 is
As the cam 161 is further rotated, the interlocking member 404 moves as shown in FIG. 16 (q).
It is located at the junction of cam paths 406a and 405c,
The lever 162 is urged to rotate in the direction P by the spring 163, and in this state, the abutment member 76 is pressed against the engagement pin 1.
As shown in FIG. 16, the engagement pin 169 is further rotatable in the P 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 in this state, when the cam 161 rotates in the H direction, the interlocking member 404 enters the cam path 405a. When the cam 161 further rotates, the lever 162 moves again in the direction P shown in FIG.
8 moves in direction B. By moving the lever 162 in the direction P, the slider 66 is moved to the state shown in FIG. , the lever 168 is shown in FIG.

direction, and the support 18o descends (state t4). When the cam 161 further rotates, the lever 167 moves in the B1 direction in FIG. 14, lowering the elevating mechanism 134 and placing the disc 6 on the turntable 130 (
16 states).

This state is the state shown in FIG. 160. In the final state, the case is released, but as long as the locking wall 406a is in the position where the interlocking member 404 is locked, the slider 65 will not move, and the case will not move. 2 is not engaged by the expansion mechanism 6°. This state continues while the case detection switch 501 detects the case 2. After that, when the case 2 is no longer detected, the cam 161 rotates and enters the t6 state, its position is detected by a rotary switch (not shown), and the motor 166 is de-energized.
The cam 161 stops (state 16). This state is
8 and 16, the cam 161 is 3
This means that the image has been rotated by 60 degrees 0. After this, when the playback switch is turned on, playback starts.

After the playback is finished, the turntable 130 stops and becomes ready for ejection, and when the case 2 is inserted into the case expansion mechanism 60, the engagement state of the slider 66 is released as described above, and the case 2 is almost fixed to the expansion mechanism (
17 condition). This is the state shown in FIGS. 9 and 816). The microswitch 200 detects this state, and the motor 166 is energized so that the cam 161 rotates in the A1 direction, which is the opposite direction to that described above. When the cup 161 moves together, the lever 167 is first pulled in the direction B2 in FIG. The lever 168 is pulled and the support 180 rises to support the disk 6 (state 19). When the cam 161 further rotates, the lever 167 moves in the direction B, lowering the elevating mechanism 134 (state t10). After that, the disk holding mechanism 90
As a result, the disc 6 is recovered into the case 2. When the cam 161 rotates during its operation, the interlocking member 404 moves toward the rear cam path 40 facing the branching member 403b, as described above.
5b, the state shown in Fig. 16 (c) is reached, and the lever 16
2 moves the slider 66, and the substantially fixed state of the case 2 is released, resulting in the state shown in FIGS. 8 and 16.

To briefly summarize each state in Fig. 15, to is 29, t6 is the slider lock (case removed), t6 is the lift lowered position (case cannot be inserted), t6 is the standby state,
t is the case inserted state, - is the lift raised position, t9 is the support raised position, tl. '11' indicates the lift lowered position, '11' indicates the support lowered position, and tl2 indicates the slider lock (case detachment).

Regarding the recording disk reproducing device configured as described above, the seventh
The operation will be explained using FIGS.

Figures 17 to 22, Figures 23 (f) and (B), and Figures 4 to 4 of 24 are all schematic explanatory diagrams showing how the operations of each part of the playback device 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 60. At this time, the disc holding mechanism 9o is located slightly in front of the center of the turntable 130 as shown in the figure. ing.

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

Further, the support 180 is in a lowered position as in the 23rd edition.

Next, the case 2 passes through the insertion port 61 and moves to the guide 52°63.
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 6o It is approximately fixed at .

Next, in this state, the microswitch 20 shown in FIG.
0 is detected, the motor 114 operates, and the belt 111 is driven to move the disk holding mechanism 9o to the front (in the figure).
X, direction).

Then, as shown in FIG. 18, the disk holding mechanism 90 enters the expanded case 2, the rotating member 101 comes into contact with the lid 3, and the restriction on the sliding member 1o2 is released □ and it slides. The 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 the disc clamping mechanism 9o is in the "lid/disk holding state" at this position.
1, the motor 114 rotates in reverse, and the disk holding mechanism 90 begins to be moved rearward (in the x2 direction) in the figure. At this time, the opening 2103 provided on the sliding member 102 contacts the slope 190b of the reversing lever 190, but since the reversing lever 190 can move 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 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 support 180 rises twice as shown in FIG. 23) and holds the group guard 33 of the disk 6. At this time, support 1
8o only touches the group guard 33, so it does not damage the signal surface of the disc 6.

Further, when the disc holding mechanism 90 is moved rearward (x2 direction), the center boss 131 at the center of the turntable 130 and the center hole 3 of the disc 6 are
4 and ff iJ come to the corresponding positions.

Even in this state, the support 189 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 due to the action of ○ and holds the center of the disk 6.
The 24th diagram is a diagram explaining this state from the side. Next, as shown in FIG. and enters the "differential hold state" mentioned above. 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, Fig. 24 (
As shown in q, the disk 6 is held by a mounting ring 133 in the center. After this, when the mounting ring 133 is lowered by the operation of the cam unit 160, the engagement between the Iscuro and the top of the turntable 130 is released, and the empty case 2 is removed from the playback device.
can be removed.

In this state, case detection switch 501 detects case 2.
If this is detected, the cam remains in this state (see FIG. 16). That is, even if the case 2 is inserted due to an erroneous operation by the user after the case is removed, the slider will not operate, and therefore the case 2 will not be engaged by the case expansion mechanism 60. After that, when the case 2 is pulled out from the insertion slot 51, (the case detection switch 5
Detected by 01) The cam 161 rotates and enters the state shown in FIG. Since the lid 3 is held from below by the lid holding members 41 and 42 as shown in FIG. 21, the lid 3 does not hang down and come into contact with the arm housing 120 while driving. When the user inserts the empty case 2 into the playback device, the engaging member 6 of the case expansion mechanism 6°
2 is engaged with the case 2, and the case 2 is connected to the playback device main body 6o.
It is in a state where it is approximately fixed to . The microswitch 20o detects this state in the same manner as described above, and this time the cam unit 160 operates to raise the mounting ring 133, resulting in the state 00 in FIG. 24.

Next, the motor 114 drives the Pel l-111, and this time the disk holding mechanism 90 moves forward (arrow X).

direction) and transitions to the state shown in FIG. 24(B).

Next, the sabot 180 is raised by the operation of the cam unit 160, and becomes the state shown in the 24th diagram. Thereafter, the mounting ring 133 is lowered by the operation of the cam unit 160, and the disc holding mechanism 90 moves forward (in the x1 direction) with the motor 114. belt 111
transported by. In other words, from the state in Figure 20 to the first
This means that we move to the state of 9 causes.

When the disk holding mechanism 9o is further transferred to the front blade (x, 5 direction), the roller 103 provided on the sliding member 102 and the first member 190a of the reversing lever 190 come into contact. At this time, since the reversing lever 190 is restricted from rotating to R4, the roller 103 climbs the slope 190a,
The sliding member 102 moves to the left side Y and in the force direction, changing from the above-mentioned "non-retained state" to the state where the lid 3 is pushed into the case 2 by the biasing force of the plate spring 94 as shown in FIG. Become.

Then, the motor 114 is reversed again, and the disk clamping mechanism 90 is transported backward (<x, yi direction) and returned to the position shown in FIG. After this, the cam unit 160
operates, the case 2 and the engagement member 62 of the case expansion mechanism 60 are disengaged from the case 2, the disc 6 is housed in the case 2, and the lid 3 is engaged with the case 2. Then, the case 2 can be taken out from the playback device main body 60.

In this way, the user attaches the case 2 to the playback device main body 5o.
By simply inserting the disc 6 slightly, the disc 6 will be automatically removed from the case 2 and playback will be possible.
Also, the storage of the disc 6 into the case 2 is automatically performed. 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 60, there is an advantage that the playback device main body 6o 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 motor 114 that drives the disk holding mechanism 90 and the arm housing 12 are controlled by a microcomputer and a normal control circuit.
0 drive motor 124 and cam drive motor 166
The above operations can be performed by sequentially operating the following steps.

Further, the disk holding mechanism 90 may be used, for example, in Fig. 1737, Fig. 19, ! In order to stop at each position shown in degrees Celsius in FIGS. 20, 21, and 22, the microswitches 202 to 205 shown in FIG. Detects contact,
Effects of the Invention Made Possible by Programming the Motor 114 to Stop The present invention is a recording disk reproducing device in which the disk is automatically pulled out and played when a disk case is slightly inserted into the recording disk reproducing device. , the state of the case engaging means is regulated in accordance with the case insertable state of this recording disc playback device, and even if the user accidentally inserts or inserts a case in the case insertable state, the case will not be accepted. This provides a highly reliable auto-loading recording disc playback device.

[Brief explanation of the drawing]

FIG. 1(3) is a perspective view of a recording disk reproducing apparatus according to an embodiment of the present invention, FIG. 1(B) is a sectional view of the rail portion of the movable pace, and FIG. The third part is a perspective view showing the external appearance of the device, Fig. 3) is a perspective view of the assembled state of the disc case that stores the disc, and Fig. 4 4-0 shows it (a). Figure 5 is a front view of the disc, Figure 5 (B) is a sectional view of the same, Figure 6 is a cutaway exploded perspective view of the disc case that houses the disc,
Figures 7 to 0 respectively indicate a plan view, a sectional view, and a front view of the disk holding mechanism in its lid/disk holding state;
FIG. 8 4, Φ) is a plan view and a cross-sectional view of the disk holding mechanism in a differentially held state, and FIG. 9 4, Φ) is a plan view and a sectional view of the disk holding mechanism in a non-holding state, respectively. Figures 10 (A) and (B) td are operation explanatory diagrams showing the relationship between the sliding member of the disk holding mechanism and the clamp arm, and Figures 11 (4) to 4 (q are the case openings of the case expansion mechanism). A plan view, a sectional view, and a front view of the case in the inserted state. Questions 12 to 0 of the case are the same, respectively, and a plan view, a sectional view, and a front view of the case expansion mechanism in the case inserted state. An explanatory diagram of the operation of the expansion mechanism, Fig. 14^, (B) is an explanatory diagram of the operation of the cam unit, Fig. 16 is a time chart of the cam unit, and Figs. The explanatory diagrams, FIGS. 17 to 22, are also explanatory diagrams of the operation of the playback device as seen from above, and FIG. 23 (A),
(B) is an explanatory diagram of the operation showing the relationship between the support and the disc, and Figs. , 2...Case body, 3...Lid, 6...Disk (recording medium), 13...Engagement hole, 40...・
Chassis, 5o... Playback device main body, 51...
...Case insertion port, 60...Case expansion mechanism, 62...Engaging member, 65...Slider, 8°...Fixed pace, 90... Disc clamping mechanism (clamping means), 91... Movable base, 96... Upper clamp arm, 96...
... Lower crank arm, 99, 100 ... Latching member (Latching means), 107, 108 ... Release member (Lid release means), 120 ...・Arm housing, 134... Disc lifting mechanism, 1600
3.1. Cam unit, t, 2oo~205...micro switch, 406a, 40eb---locking wall, 501...case detection switch. Name of agent: Patent attorney Toshio Nakao and 1 other person:
11 rigid t+a61-21nt71 (15)11 -
toN N N tTIMJuljbl-tintvl(lj)C(> .

Claims (1)

[Claims] It has an internal storage space that can store disc-shaped recording media,
A disc case comprising a case body having an opening for ejecting the recording medium at one end and a lid that removably engages with the opening, a playback device body having a playback means, and the case body. a case engaging means for detachably fixing the case body to the playback device main body; and a regulation regulating the engaging means to an engaged state in which the case main body can be engaged and a disengaged state in which the case main body cannot be engaged. A recording disk reproducing device having means.