JP2000030344A - Reproducing device for disk-like recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproducing device small in whole constitution without degrading the mechanical strength of components. SOLUTION: Between a stocker 35 for holding plural disk cassettes 34 and a loading holder 39, an opening 110 is formed on the bottom part 102 of the stocker 35, by which the housing space 100d for the disk cassette 34 housed at the lowermost position is opened facing downward, and a connection plate 74 of a loading drive means 51 is fitted into this opening 110 so as movable in the back and forth direction. Since the securing of the area between the stocker 35 and the loading holder 39 for making the connection plate 74 movable is unrequired, the whole constitution of the reproducing device 31 is miniaturized by the above arrangement without thinning the plate thickness of each component member of the stocker 35, loading holder 39 and housing 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reproducing a disk-shaped recording medium such as a mini disk.

[0002]

FIG. 13 is a simplified cross-sectional view showing a typical prior art reproducing apparatus 2 for a disk-shaped recording medium 1, and FIG. 14 is a perspective view showing the reproducing apparatus 2 with a housing 20 removed. is there. The reproducing apparatus 2 accommodates a plurality of disk cassettes 4 each configured by accommodating the disk-shaped recording medium 1 in a casing 3 having a thin plate shape, and operates the plurality of disk cassettes 4 by a user's operation. Among them, a function of mounting a desired disk cassette 4 to the reproducing means 6 to reproduce recorded contents, that is, a so-called autochanger function is provided. The reproducing apparatus 2 is arranged above the reproducing means 6 at intervals, and has a stocker 5 for holding a plurality of disk cassettes 4, and is disposed between the stocker 5 and the reproducing means 6, and has one disk cassette 4. And a loading holder 7 that moves up and down between a lower position where the disc cassette 4 is mounted on the reproducing means 6 and an upper position that is displaced upward from the lower position, and the disc cassette 4 of the loading holder 7. And a loading driving means 9 for vertically moving the loading holder 7 between the lowered position and the raised position by a displacement in the front-rear direction (the left-right direction in FIG. 13) parallel to the insertion direction and the discharge direction.

The reproducing apparatus 2 has an elevator 22 which moves up and down from the highest position facing the storage space of the disk cassette 4 stored at the highest position of the stocker 5 to the lowest position facing the loading holder 7. The elevator 22 is configured to be displaced up and down by elevator driving means (not shown) to supply the disk cassette 4 to the insertion / ejection opening 21 formed in the housing 20 of the reproducing apparatus 2, the stocker 5 and the loading holder 7.

[0004] The loading driving means 9 comprises a pair of side plates 10 and 1 connected to both sides of the loading holder 7.
1 and each side plate 10 above the loading holder 7.
And a connecting plate 12 connecting the driving members 11 to each other.

[0005] Such a reproducing apparatus 2 has a structure as small as possible by narrowing the intervals between the loading holder 7, the driving member 8, the elevator 22, the stocker 5 and the reproducing means 6.

FIG. 15 is a front view showing one side plate 10 of the driving member 8. In addition, since the one side plate 10 and the other side plate 11 have a shape that is line-symmetrical at the central portion in the longitudinal direction along the front-rear direction, the drawing and the description of the other side plate 11 are omitted to avoid duplication. I do. On one side plate 10, a pair of guide grooves 13,
14 are formed. These guide grooves 13 and 14 include a first horizontal portion 15 extending in the front-rear direction on one end side in the front-rear direction (the left side in FIG. 15) and the other end portion in the front-rear direction with respect to the first horizontal portion 15 (FIG. 5). And a second horizontal portion 16 extending in the front-rear direction above the first horizontal portion 15 and extending upward from one end to the other end in the front-rear direction,
An inclined portion connected to the first and second horizontal portions; A pair of pins 18 and 19 extending from the loading holder 7 are fitted into the guide grooves 13 and 14, respectively.

The loading holder 7 is allowed to be displaced only in the vertical direction by a guide member (not shown), and the driving member 8 is driven to be displaced in the front-rear direction.
8 and 19 are guided between the first and second horizontal portions 15 and 16 to move the loading holder 7 up and down.

When reproducing the desired recorded content of the disk-shaped storage medium 1 in the reproducing apparatus 2 having such a configuration, the user operates the stocker 5 to move the elevator 2 from the stocker 5.
2, the disk cassette 4 having the disk-shaped recording medium 1 on which the desired recorded contents are recorded is mounted, and the elevator 22 is displaced down to the same height as the loading holder 7 with the disk cassette 4 mounted. Thereafter, the disk cassette 4 is supplied to the loading holder 7. In this state, the loading cassette 7 is displaced from the raised position to the lowered position as described above, and the disc cassette 4 is mounted on the reproducing means 6. After the operation of mounting the disc cassette 4 on the reproducing means 6 is completed, the reproducing means 6 starts reproducing the recorded contents.

When ejecting the disc cassette 4 mounted on the reproducing means 6 to the stocker 5 or the insertion / ejection opening 21, the procedure reverse to the above-mentioned mounting operation, that is, the loading holder 7 is displaced upward from the lowered position to the raised position. After that, the disc cassette 4 is mounted on the elevator 22, the elevator 22 is displaced upward, and the disc cassette 4 is discharged to the stocker 5 or the insertion / ejection opening 21.

In this manner, of the plurality of disk cassettes 4 accommodated in the stocker 5, a desired disk cassette 4 can be automatically mounted on the reproducing means 6 to reproduce recorded contents. It is desired that the reproducing apparatus 2 having such a so-called autochanger function be made more compact in consideration of being mounted on a vehicle.

[0011]

However, in the above-described prior art configuration, there is no extra space for reducing the size of the housing 20, and as a method for further reducing the size, for example, the loading holder 7, the stocker 5, and the housing Although a method of securing a space for reducing the size of the housing 20 by reducing the thickness of each member constituting the components 20 and the like can be considered, if the thickness of the member is reduced even slightly, the mechanical strength is significantly reduced, and the vehicle This is not a practical method because the members generated by the vibration generated during traveling may become large and malfunction may occur.

An object of the present invention is to provide a reproducing apparatus for a disk-shaped recording medium having a small overall configuration without reducing the mechanical strength of each member.

[0013]

According to a first aspect of the present invention, there is provided a stocker for accommodating a plurality of thin disk cassettes in which a disk-shaped recording medium is accommodated in a casing, and an interval disposed below the stocker. A reproducing means for reproducing the recorded content of the disk-shaped recording medium in the casing of the mounted disk cassette; and a storage means disposed between the stocker and the reproducing means, holding the disk cassette and mounting the disk cassette on the reproducing means. The loading holder is displaced upward and downward from the lowering position to be displaced upward and downward from the reproducing means and displaced upward and downward from the lowered position, and the disc cassette is inserted into the loading holder on both sides of the loading holder. A pair of side plates that are driven to be displaced in the front-rear direction parallel to the insertion direction and the ejection direction, and a loading hood. Is interposed between da and stocker,
A loading drive means having a connecting plate for connecting the respective side plates, and displacing the loading holder in the front-rear direction so as to elevate and lower the loading holder between a lower position and an upper position; An apparatus for reproducing a disk-shaped storage medium, characterized in that an opening is formed in which a storage space of a cassette faces downward and is opened, and a connecting plate of a loading driving means is fitted movably in a front-rear direction.

According to the present invention, the stocker holds a plurality of thin disk cassettes, and one of the plurality of disk cassettes selected by the user is inserted into the loading holder. When the loading holder is displaced up and down from the raised position to the lowered position, the loading holder is mounted on the reproducing means and the recorded content is reproduced. When returning the disk cassette mounted on the reproducing means to the stocker, the loading holder is moved up and down from the lowered position to the raised position, and the disk cassette is moved to the upper stocker and stored in a predetermined storage space. In this manner, the operation of attaching and detaching the disk cassette to and from the reproducing means can be performed in the same manner as in the above-described related art.

The above-mentioned vertical displacement from the raised position to the lowered position of the loading holder is performed by a pair of side plates that are driven to be displaced in the front-rear direction on both sides of the loading holder, and each side plate that is interposed between the loading holder and the stocker. By the displacement driving of the connecting plate for connecting the front and rear directions. In the configuration of the present invention, an opening is formed at the bottom of the stocker to open the storage space of the lowermost disk cassette facing downward, and the connection plate of the loading drive means can move in the front-rear direction in this opening. As compared with the above-described configuration of the related art, the gap between the stocker and the loading holder for enabling the connecting plate to be displaced in the front-rear direction is omitted, and the reproducing means and the stocker are omitted. Can be narrowed, whereby the overall configuration can be downsized.

Further, since the distance between the stocker and the loading holder is reduced, the moving distance of the disk cassette moving between the stocker and the loading holder can be reduced, and the operation of attaching and detaching the disk cassette to the reproducing means can be performed quickly. .

According to a second aspect of the present invention, at least one of the bottom portion of the stocker and the connecting plate of the loading drive means is formed with one or more convex portions that are convex in the front-rear direction facing the opening. One or a plurality of concave portions are formed on one of the bottom of the stocker and the connecting plate of the loading means, into which the convex portions which are concave in the front-rear direction facing the opening can be fitted. And

According to the present invention, a concave portion and a convex portion which is convex in the front-rear direction are formed in each portion of the connecting plate of the loading driving means and the bottom of the stocker facing the opening. An opening having an uneven shape in the front-rear direction is formed by these convex portions and concave portions. For example, in a configuration in which the opening extends linearly in the left-right direction perpendicular to the front-rear direction, when the disk cassette is inserted into the lowermost storage space of the stocker along the front-rear direction, the disk cassette fits into the opening and the storage space is inserted. However, in the configuration of the present invention, since the opening has an irregular shape in the front-rear direction, it is possible to avoid the above-described problem of poor insertion operation, and The operation of inserting the disk cassette into the disk cassette can be reliably performed.

The third aspect of the present invention is characterized in that the concave portion and the convex portion have a region which is partially fitted in the front-rear direction while being most separated in the front-rear direction.

According to the present invention, since the concave portion and the convex portion have a region in which they are partially fitted in the front-rear direction even in the most separated state in the front-rear direction, the lowermost storage space is provided. In the state where the connecting plate is arranged at any of the front position and the rear position, at least one of the bottom portion of the stocker and the connecting plate can be arranged without a cut over the entire length in the front-rear direction. Therefore, it is possible to reliably eliminate the problem that the end of the casing of the disc cassette is fitted into the opening and a defective insertion operation occurs.

According to a fourth aspect of the present invention, the bottom surface facing the lowermost storage space at the bottom of the stocker and the upper surface of the connecting plate of the loading driving means are substantially flush with each other.

According to the present invention, the bottom surface of the bottom of the stocker facing the lowest storage space and the upper surface of the connecting plate of the loading drive means are substantially flush with each other. The lower part of the casing of
The stocker can be supported by the upper surface of the connecting plate together with the bottom surface of the stocker. For example, the disk cassette can be stably held without rattling due to vibration generated during running of the vehicle. Is held in contact with the lower part of the disk cassette, so that the vibration of the connecting plate and the side plates connected by the connecting plate due to the vibration is maintained, and the contact sound between the casing of the disk cassette and the connecting plate is maintained. Noise can be eliminated.

[0023]

FIG. 1 is a partially enlarged cross-sectional view of a reproducing apparatus 31 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the entire configuration of the reproducing apparatus 31. Playback device 31
Is a mini-disc (commonly referred to as M) in which a disc-shaped recording medium 32 on which recorded contents such as acoustic information can be optically and magnetically recorded or reproduced is stored in a casing 33.
D), etc.
An apparatus for reproducing and recording the recorded contents.

This reproducing apparatus 31 is provided with a stocker 35 capable of accommodating a plurality of disc cassettes 34, and is provided at intervals below the stockers 35, and plays recorded contents of the disc-shaped recording medium 32 of the mounted disc cassette 34. A reproducing unit 36 for reproducing, disposed between the stocker 35 and the reproducing unit 36 and holding the disc cassette 34,
As shown by the phantom line, a loading holder which is displaced upward from a lowering position 37 where the disc cassette 34 is mounted on the reproducing means 36 and is displaced up and down between the reproducing means 36 and a raised position 38 where the disc cassette 34 is separated. 3
9, a loading driving means 51 (see FIG. 3 described later) for raising and lowering the loading holder 39 over the lowering position 37 and the raising position 38, and supplying and discharging the disc cassette 34 to and from the loading holder 39 disposed at the raising position 38. The storage space 100a of the disk cassette 34 disposed at the highest position of the stocker 35 from the lowest position
And transport means 40 for transporting the disk cassette 34 to the uppermost position for feeding and discharging the disk cassette 34.

The housing 41 of the reproducing apparatus 31 has a rectangular parallelepiped shape whose appearance is relatively thin, and a pair of side walls 43 and 44 (see FIG. 4 described later) and a back wall 45 are erected from a bottom plate 42. A top plate 46 is attached to the upper surface, and an insertion / ejection opening 4 for inserting and ejecting the disc cassette 34 is provided on the front surface.
The front plate 48 on which the 7 is formed is attached.

The stocker 35 is provided on the upper side of the reproducing means 36. Generally, three partition plates 103 are formed between a top plate 101 constituting an upper portion and a bottom plate 102 constituting a bottom portion. Storage spaces 100a to 100d (hereinafter, when any storage space is indicated, reference numeral is set to 100)
And four disc cassettes 34 can be stored with the disc cassettes 34 arranged vertically at intervals. In each storage space 100, a switch 105 is provided on one side wall 104 of the stocker 35 at a position close to the back wall 45, and an actuator 106 is inserted through the side wall 104 and protrudes inward of the storage space 100. ing. The disk cassette 34 has rollers 146 (see FIG. 4 described later).
When the disk cassette 34 is inserted into the storage space 100, the actuator 106 is pressed at the upstream end 107 of the disk cassette 34 in the insertion direction A1, and the switch 105 is turned on.

When the storage of the disk cassette 34 in the stocker 35 is detected in this manner, the motor 140
Driving of the roller 146 is stopped (see FIG. 4 described later), and the rotation of the roller 146 is stopped. Each storage space 100 also includes a side wall 10.
4, a leaf spring member 99 a projecting inward of the stocker 35 is formed. The leaf spring member 108 faces the casing 33 of the disc cassette 34 stored in the storage space 100 to the one side wall 104. To the other side wall 109. This prevents the disk cassette 34 from rattling against the stocker 35.

The disc-shaped recording medium 32 of the disc cassette 34 has, at the center thereof, a clamp plate 182 on which the turntable 181 of the reproducing means 36 is sucked. Is formed with a drive hole 32a.

Correspondingly, a leaf spring member 99 formed by cutting and raising each partition plate 103 of the stocker 35 is provided at the center thereof, and the drive hole 32a of the inserted disk cassette 34 is provided. Plate 1 attached to the center of the disk-shaped recording medium 32
82 is pressed toward the top plate 101. As a result, rattling of the disk-shaped recording medium 32 in the casing 33 is prevented.

The reproducing device 31 includes an insertion / ejection opening 47, each storage space 100 for the stocker 35, and the loading holder 3.
The disk cassette 34 is transported by the transporting means 40 over nine intervals, and has a function of automatically replacing the disk cassette 34 to be reproduced by the reproducing means 36, a so-called autochanger function. The disc cassette 34 supplied to the loading holder 39 from the transport means 40
When the loading holder 39 is displaced downward from the ascending position 38 to the descending position 37, the loading holder 39 is mounted on the reproducing means 36 and the reproducing operation is performed.

FIG. 3 is an exploded perspective view of the loading holder 39 and the loading driving means 51. Referring to FIGS. 1 and 2 as well, the loading holder 39 has a frame 52 having a substantially U-shaped external shape capable of surrounding the casing 33 of the disc cassette 34. A pair of guide pins 55,5 are provided on both side walls 53,54.
6; 57, 58 are erected respectively. One of the side walls 53, 54 is provided with a leaf spring member 59 formed by cutting and raising a part of the side wall 53, and the disk supplied by the leaf spring member 59 into the frame 52. The casing 33 of the cassette 34 can be pressed against the other side wall 54 and held without play.

The loading driving means 51 is fixed to the housing 41, and supports a plurality of supporting pieces 61, 62, 63 for vertically supporting the loading holder 39.
And the disk cassette 34 into the loading holder 39.
The loading holder 39 is displaced and driven in the front-rear direction (the left-right direction in FIGS. 1 and 2) parallel to the insertion direction A1 and the discharge direction A2 of the loading holder 39 from the raised position 38 to the lowered position 3.
A driving member 64 that moves up and down over the
4 includes a motor 65 and a gear train 66 for driving the motor 4 in the front-rear direction. Upper and lower guide grooves 67, 68; 69, 70 extending in the vertical direction are formed on the side of the frame 52 of the loading holder 35 on the support pieces 61 to 63, respectively. The fitting of the guide pins 55 to 58 of the holder 39 allows the loading holder 39 to be displaced only in the vertical direction.

The driving member 64 includes the loading holder 39.
A pair of side plates 7 driven to be displaced in the front-rear direction on both sides of
2, 73, loading holder 39 and stocker 3
5 and a connecting plate 7 for connecting the side plates 72 and 73 to each other.
And 4. Each of the side plates 72 and 73 has a pair of inclined guide grooves 75, which incline upward from the upstream side to the downstream side in the insertion direction A 1 (right side in FIGS. 1 and 2) of the disc cassette 34 into the loading holder 39. 76; 7
7, 78 are formed respectively. These inclined guide grooves 75
Each of the guide pins 55 to 58 is fitted in each of the guide pins 55 to 78 outside the support pieces 61 to 63 in the width direction. The inclined guide grooves 75 to 78 are formed so as to extend in a direction intersecting the vertical guide grooves 67 to 70 with the side plates 72 and 73 arranged on both sides of the loading holder 39.

A first front-rear guide groove 80 extending in the front-rear direction is formed in at least one of the pair of side plates 72, 73. A first front and rear guide pin 81 erected from the support piece 61 is fitted into the first front and rear guide groove 80, and guides the drive member 64 in the front and rear direction while restraining the vertical displacement of the drive member 64. Also, each side plate 72, 73
Is located at the lower part of the playback device 31 (FIGS. 1 and 2).
In this case, a horizontal portion 82 is formed that bends in a direction perpendicular to the paper surface). A second front-rear guide groove 83 extending in the front-rear direction is formed in the horizontal portion 82, and the horizontal portion 82 is placed on a mount 84 formed in the bottom plate 42 of the housing 41. Second standing front and rear guide pins 8
5 guides the displacement in the front-rear direction with the displacement of the driving member 64 in the left-right direction restricted. As described above, the driving member 64 includes the first and second front and rear guide pins 8.
In the state in which the displacement in the vertical and horizontal directions is restricted by 1, 85, displacement in the horizontal direction is possible.

Further, a rack 86 is formed on one side surface of the horizontal portion 82 of the one side plate 72. The driving force from the motor 65 attached to the gantry 84 is transmitted to the rack 86 via a gear train 66. In the horizontal portion 82, rising pieces 87, near both ends in the longitudinal direction along the front-rear direction,
The rising pieces 87, 88 are respectively formed.
Can contact the actuators 91, 92 of the front and rear limit switches 89, 90 attached to the gantry 84, respectively.

When the motor 65 is driven, the driving member 64
Is displaced in the front-rear direction, and the rising piece 87 or the rising piece 88
When the actuator comes into contact with the actuator 91 or the actuator 92, the driving of the motor 65 is stopped.
Limited to 9,90.

When the driving member 64 is displaced in the front-rear direction as described above, the guide pins 55 to 58 of the loading holder are guided by the vertical guide grooves 67 to 70 and the inclined guide grooves 75 to 78 with the displacement. Thus, the loading holder 39 can be displaced vertically from the lowering position 37 to the raising position 38. The back wall 4 of the frame body 51
A cassette detection switch 93 is provided at the end on the fifth side.
When the casing 33 of the disk cassette 34 presses the actuator of the cassette detection switch 93, the presence or absence of the disk cassette 34 in the frame 52 can be detected.

Further, one of the side plates 72 has an inclined guide groove 7.
The biasing pieces 94 and 95 are attached to face 5, 76, respectively. These bias pieces 94 and 95 are placed near both ends of the inclined guide grooves 75 and 76, that is, in a state where the frame body 52 is disposed at the lowered position 37 and the raised position 38.
Contact portions 96 and 97 that contact the respective guide pins 55 and 56;
A mounting portion 98 for fixing these contact portions 96 and 97 to the side plate 72 is provided. Such biasing pieces 94, 9
5, the loading holder 39 can be held at the lower position 37 and the upper position 38 without rattling.

The reproduction means 36 is a turntable 18 which is driven to rotate about a horizontal axis by a motor (not shown).
1 and the turntable 181 with respect to the disc cassette 34 mounted by the loading holder 39.
Is fitted into the drive hole 32a and the clamp plate 1
82, the disk-shaped recording medium 32 is driven to rotate, and the pickup 301 is
By reading out the recorded contents recorded in No. 2, the reproducing operation of the recorded contents is performed.

FIG. 4 is a plan view of the reproducing apparatus 31 with the top plate 46 removed. Referring also to FIG. 1 to FIG.
0 is a lifting member 113, a pair of lifting driving members 114,
115. The elevating member 113 includes an elevating member side storage unit 1 for storing the disc cassette 34.
16, first and second support portions 117 and 118 extending from the storage portion 116 toward the one side wall 43, and a third support portion 119 extending toward the other side wall 44. First
The support portion 117 is provided with a first erroneous insertion prevention lever 120, and the pressing portion 122 thereof passes through the side wall 187 of the elevating member 113 and faces the storage portion 116. The second support portion 118 is provided with a switch 188 for detecting the presence or absence of the disk cassette 34 in the storage portion 116, and the actuator 189 is inserted into the side wall 187 of the elevating member 113 to face the storage portion 116.

The first erroneous insertion prevention lever 120 is provided with the first
A locking piece 124 formed on the erroneous insertion prevention lever 120;
The first piece is attached to the hook 126 formed on the first support portion 117.
Both ends of the spring 128 are latched, respectively, and are spring-biased in the direction of the storage portion 116 indicated by an arrow 130a. In addition, a pair of pins 133 erected on the first support portion 117 is fitted into a pair of guide grooves 131 formed in the first erroneous insertion prevention lever 120, whereby the first erroneous insertion prevention lever 120 is connected to the first guide groove 131. Displacement in the direction of the arrow 130a and in the opposite direction 130b is allowed.

The third support portion 119 has a second erroneous insertion prevention lever 121, a plurality of switches 136, 169, 190,
Motors 140 and 159, gear trains 144 and 163, roller pressure lever 164, and the like are provided. Similarly to the first mis-insertion prevention lever 120, the second mis-insertion prevention lever 121 is attached such that the pressing piece 123 can be protruded or retracted into the storage portion 116 by fitting the pin 134 into the guide groove 132. In addition, the hook 125 formed on the second mis-insertion prevention lever 121 and the third support 1
The two ends of the second spring 129 are respectively hooked on the hooking pieces 127 formed on the spring 19 and are spring-biased in the direction of the arrow 130b. A switch 136 is provided on the other side wall 44 side of the second erroneous insertion prevention lever 121.

When the disk cassette 34 is inserted into the storage section 116, the first erroneous insertion prevention lever 120 is pressed by the disk cassette 34 in the direction of the arrow 130b to be displaced, and the second erroneous insertion prevention lever 121 is moved by the arrow. 13
The switch 136 is turned on when the actuator 137 of the switch 136 is pressed by the pressing piece 135 to be displaced by being pressed in the 0a direction. The third support 119 is provided with a motor 140 driven by a conduction signal of a switch 136, and the output of the motor 140 is output shaft 1
The gear 143 is driven via a worm 142 attached to the tip of the wheel 41, and after being decelerated via a gear train 144, the rollers 145 and 146 are rotationally driven in the arrow direction indicated by reference numeral 147.

The roller 145 and the gear 148 are rotated by their rotation shafts 145a and 148a.
49, and the roller holder 149 is rotatably supported by a third support portion 119 by a rotating shaft 148a.
Are supported so as to be freely displaceable. The rotation shaft 145a
And a fixed shaft 151 erected on the third support portion 119 via a rotary shaft 148a.
Is wound. The roller compression spring 152 is used to
5, the direction indicated by reference numeral 153,
It is mounted such that a spring force is urged in a direction in which it projects. Thus, the roller 145 can be driven to rotate while being pressed against the disk cassette 34 inserted into the storage section 116, so that the disk cassette 34 can be reliably supplied into the storage section 116.

Rotary shafts 146a and 154a provided upright on a roller holder 155 which covers the roller 146 and the gear 154.
A roller compression spring 158 that generates a spring force in a direction indicated by an arrow 156 is wound between the roller and the fixed shaft 157. As a result, the rollers 146 project from the through holes 150 formed in the side wall 104 of the stocker 35 and the other side wall 54 of the above-described loading holder 39 into the storage spaces 100a to 100d and the storage spaces of the frame 52, It can be driven to rotate while being pressed against the disk cassette 34.

The motor 159 is provided on the side of the back wall 45 of the third support portion 119, and its output is transmitted to the gear 162 via the worm 161 attached to the tip of the output shaft 160. Further, after being decelerated by the gear train 163,
The gear 166 meshing with the rack 165 of the roller pressing lever 164 is driven. A follower standing upright on the third support portion 119 is fitted into a long hole (not shown) formed in the roller pressing lever 164, and the displacement of the roller pressing lever 164 is changed in the arrow direction shown by reference numerals 167a and 167b. Be regulated. When the roller pressing lever 164 is displaced to the position closest to the back wall 45, the rising piece 168 formed on the roller pressing lever 164 presses the actuator 170 of the switch 169. Thereby, the motor 15
9 is stopped.

The roller pressing lever 164 has an inclined portion 194.
Is provided, and the roller pressing lever 164 is moved by an arrow 16.
7a, the roller holder 155 is guided by the rotation shaft 146a, and the roller holder 155 moves along the inclined portion 194.
When the roller 146 is displaced in the direction of the arrow indicated by 56, the roller 146 is moved through the through hole 1 of the stocker 35 or the loading holder 39.
Projecting from 50 to a position where it comes into contact with the disk cassette 34. Also, the roller pressure lever 164 is indicated by an arrow 167b.
When the roller holder 155 is driven in the direction
The roller 146 is displaced in the opposite direction, and returns to a predetermined position by the spring force of the roller pressure spring 158. At this time, the actuator 197 of the switch 190 is pressed by the roller holder 155, and the opening of the roller 146 is detected.

A positioning piece 139 is also formed on the roller pressure lever 164, and correspondingly, each of the storage spaces 100 a to 100 a in the side wall 104 of the stocker 35 is formed.
A guide piece 138 corresponding to the storage space of Od and the loading holder 39 is extended. The guide piece 138 has a guide groove 138a that is formed wider toward the elevating member 113. Therefore, when the roller pressing lever 164 is displaced in the direction of the arrow 167a until the switch 169 is turned on as described above, the guide piece 139 fits into the guide groove 138a, and thus the stocker 35 and the loading holder 39 of the disk cassette 34. In the insertion / ejection operation to the device, the position of the elevating member 113 can be accurately positioned.

A motor 171 and a gear train 172 are provided below the storage section 116 on the bottom plate 42.
When the motor 171 is driven, the output is output from the output shaft 17.
After being reduced through the worm 174 and the gear train 172 attached to the gear 3, the gear is transmitted to the rack 176 of the lifting drive member 114 meshing with the gear 175. Elevating drive member 1
14 and the lifting / lowering driving member 115
One end portions and the other end portions in the longitudinal direction of 14, 14 are connected by connecting members 111, 112. Guide grooves 178, 179 are formed in the lifting / lowering drive members 114, 115, respectively. A follower 200 projecting from the second support portion 118 is fitted into one of the guide grooves 178, and the other is inserted into the other guide groove 179. Has a follower 180 formed on the third support portion 119 fitted therein. As a result, the lifting drive members 114 and 115 are driven by the motor 171 by the arrow 167.
By being driven in the directions a and 167b, the elevating member 113 can be displaced up and down from the uppermost position to the lowermost position.

Referring to FIG. 3 again, the other side plate 73 of the driving member 64 is formed with the through hole 150 into which the roller 146 is fitted as described above. With the casing 33 of the disk cassette 34 held by the loading holder 39 pressed against the roller 146, the roller 146 is driven to rotate and the storage unit 1 of the transporting means 40 is rotated.
16 can be reliably performed.

Referring to FIG. 1 and FIG.
The bottom plate 42 has an opening 110 in which the storage space 100d of the disk cassette stored at the lowest position faces downward and opens, and the connecting plate 74 of the driving member 64 fits movably in the front-rear direction. You.

FIG. 5 is a sectional view showing the bottom plate 102 as viewed from the top plate 101 side of the stocker 35. The opening 110
Is formed in the middle part of the bottom plate 102 of the stocker 35 in the longitudinal direction along the front-rear direction (horizontal direction in FIG. 5) and extends in the left-right direction (vertical direction in FIG. 5). This opening 1
The length L1 in the front-rear direction of 10 is selected to be slightly larger than the length L2 of the moving region of the driving member 64 in the front-rear direction.

In the reproducing apparatus 31 configured as described above, when the switch 136 detects that the disk cassette 34 has been inserted from the insertion / ejection opening 47, the motor 1
40 is driven, and the disk cassette 34 is
9 until the completion of loading is detected by
It is taken in. Thereafter, the motor 171 is driven in response to an input operation to an operation unit (not shown), and the lifting member 113 is displaced so as to face the predetermined storage space 100 of the reproduction unit 36 or the stocker 35.

Next, the motor 159 is driven, the roller pressing lever 164 is displaced in the direction of the arrow 167a to position the elevating member 113 by the guide piece 139, and the roller 146 is moved into the stocker 35 or the loading holder 39. Protruded into. When the preparation for carrying the disk cassette 34 is completed, the motor 140 is driven again to take the disk cassette 34 into the stocker 35 or the loading holder 39. Switch 18
7 or the switch 188 detects that the motor has been taken up to the predetermined take-up position, the motor 140 is stopped, and when the reproduction is performed, the motor 65 is driven, and the driving member 64 is moved in the insertion direction A1. The disc drive is shifted to the upstream side to lower the loading holder 39 to the lowering position 37, and the disc cassette 34 is loaded to a predetermined reproducing position.

The disk cassette 34 whose reproduction has been completed is
In response to the input operation or the like, it is stored in a predetermined storage space 100a to 100d in the stocker 35 by the operation reverse to the above, or is discharged from the insertion / ejection opening 47 to the outside.

According to this embodiment, the displacement area of the connecting plate 74 of the drive member 64 in the front-back direction along the insertion direction A1 and the discharge direction A2 is defined by the opening 11 at the bottom of the stocker 35.
0, the distance between the stocker 35 and the loading holder 39 can be reduced, and the thickness of each member such as the stocker 35 and the housing 41 can be reduced so that the mechanical strength does not decrease. 31
Can be downsized.

According to the present embodiment, the stocker 35
The bottom surface 42a of the bottom plate 42 and the upper surface 74a of the connecting plate 74 of the drive member 64 are disposed so as to be substantially coplanar.
Therefore, the lowermost storage space 100 of the stocker 35
d, the lower portion of the disk cassette 34 accommodated in the stocker 3 can be held over almost the entire surface.
The distance between the loading holder 5 and the loading holder 39 can be reduced to further reduce the size.

The stocker 35 and the loading holder 3
9 can be narrowed, so that the moving distance of the transport means 40 can be reduced, and the exchange time of the disk cassette 34 can be shortened. In addition, compared to the above-described configuration of the related art, the plate thickness of each member of the stocker 35 and the housing 41 is increased to increase the mechanical strength, and to prevent operation failure due to vibration generated during running of the vehicle. Can be planned.

The casing 33 of the disc cassette 34 loaded in the stocker 35 and the loading holder 39 is prevented from rattling by the leaf spring members 99a and 59, and is further protected from the disc cassette 34 stored in the stocker 35. Since the clamp plate 182 is held and fixed by the leaf spring member 99 formed in the partition plate 103 forming the storage spaces 100a to 100c,
In particular, in the case where the reproducing apparatus 31 using the MD as a recording medium is used for a vehicle, it is possible to reliably prevent the disk 32 from rattling against external vibration.

FIG. 6 is a sectional view showing a bottom 201 and a connecting plate 202 of a stocker 35 according to another embodiment of the present invention. Note that this embodiment is similar to the embodiment shown in FIGS. 1 to 5 described above, and the corresponding parts are denoted by the same reference characters and will be described in detail.

At the center of the bottom 201 of the stocker 35 in the width direction (vertical direction in FIG. 6) of the present embodiment, concave portions 204a and 204b which are concave in the front-rear direction (horizontal direction in FIG. 6) facing the opening 203. Is formed, and the connecting plate 202 has the concave portion 204 which is convex toward the opening 203.
The convex portions 205a and 205b that can be fitted to the a and 204b are formed.

In the embodiment shown in FIGS. 1 to 5 described above, in the operation of supplying and discharging the disk cassette 34 to and from the stocker 35, the disk cassette 34 is transferred from the transport means 40 to the lowest storage space 100d of the stocker 35. When inserting the disc cassette 34, as shown in FIG. 7A, the disc cassette 34 has an angle θ1 with respect to one virtual plane defined by the upper surface 74a of the connecting plate 74 and the upper surface 102a of the bottom 102 of the stocker 35. May be inserted. The angle θ1 is selected to be, for example, 1 degree or less. Thus, by inserting the disc cassette 34 at an angle θ1 with respect to the one virtual plane, the upstream end 10 in the insertion direction A1 of the casing 33 of the disc cassette 34 is inserted.
7 moves from the storage section 116 of the transporting means 40 onto the bottom 102 of the stocker 35, the bottom plate 102 of the stocker 35
However, it is possible to avoid the problem that the insertion operation failure occurs due to being hooked on the end 208 of the bottom plate 102, as in the opening 110 of the embodiment shown in FIGS. In a configuration in which the opening 110 extends linearly in the left-right direction (vertical direction in FIG. 5) perpendicular to the front-rear direction, the end 107 of the disk cassette 34 contacts one side surface of the opening 110 or one side surface of the connecting plate 74. Operation failure may occur. However, in the present embodiment, even when the driving member 64 is disposed at the front end position or the rear end position, each of the convex portions 205a, 20
5b is arranged in the opening 203 over the entire length in the front-rear direction, so that the above-described problem does not occur, and the operation of inserting the disk cassette 34 into the stocker 35 can be performed reliably.

FIG. 8 is a sectional view showing a bottom portion 210 and a connecting plate 211 of a stocker 35 according to still another embodiment of the present invention. Note that this embodiment is similar to the embodiment shown in FIGS. 1 to 5 described above, and the corresponding parts are denoted by the same reference characters and will be described in detail. In the present embodiment, convex portions 213a and 213b that are convex in the front-rear direction facing the opening 212 are formed at the center of the bottom portion 210 of the stocker 35 in the width direction (vertical direction in FIG. 8). The concave portion 213 is concave in the front-rear direction facing the opening 212.
a, 213b can be fitted with a plurality of concave portions 214a, 21
4b is formed. Even in such a configuration, as in the configuration shown in FIG.
The insertion operation of the stocker 35 into the lowest storage space 100d can be reliably performed.

FIG. 9 is a sectional view showing a bottom portion 216 and a connecting plate 217 of a stocker 35 according to still another embodiment of the present invention. Note that this embodiment is similar to the embodiment shown in FIGS. 1 to 5 described above, and the corresponding parts are denoted by the same reference characters and will be described in detail. In this embodiment, the bottom portion 216 of the stocker 35 has a concave shape in which the upstream end in the insertion direction (left side in FIG. 9) A1 facing the opening 218 is concave toward the upstream in the insertion direction A1. A part 218a is formed, and a convex part 218b that is convex toward the upstream side is formed at the downstream end. Also, the connecting plate 216
A convex portion 219a that can be fitted to the concave portion 218a is formed at the upstream end in the insertion direction A1, and a concave portion 219b that can be fitted to the convex portion 218b is formed at the downstream end. Is done. Even with such a configuration, FIG.
And the disk cassette 3 similarly to the configuration shown in FIG.
4 can be surely guided.

FIG. 10 is a sectional view showing a bottom portion 220 and a connecting plate 221 of a stocker 35 according to still another embodiment of the present invention. Note that this embodiment is similar to the embodiment shown in FIGS. 1 to 5 described above, and the corresponding parts are denoted by the same reference characters and will be described in detail. This embodiment has a configuration in which the configuration of the above-described embodiment shown in FIG. 9 is reversed in the insertion direction A1. Even in such an embodiment, FIG. 8 and FIG. 9, the disk cassette 34 can be smoothly guided to the lowest storage space 100d of the stocker 35.

FIG. 11 is a plan view showing a bottom 222 and a connecting plate 223 according to still another embodiment of the present invention. Note that this embodiment is similar to the embodiment shown in FIGS. 1 to 5 described above, and the corresponding parts are denoted by the same reference characters and will be described in detail. In this embodiment, the connecting plate 22
3, a plurality of convex portions 225a, 225b, 225c, and 225d which are convex in the front-rear direction facing the opening 224 are formed, and the convex portion 225a to 225d is formed on the bottom 222 of the stocker 35. A plurality of concave portions 226a, 226b, 226c, 226d are formed to face in the direction. Even with such a configuration, FIG.
As in the embodiments shown in FIGS. 8 to 10, the disk cassette 34 can be smoothly guided in the insertion direction A1.

Each of the convex portions 205a, 205b; 213a, 213b; 218 shown in FIGS.
b, 219a; 225a to 225d may be square, trapezoidal or triangular.

In each of the embodiments shown in FIGS. 1 to 11, the stocker 35 is fixed in the housing 41. However, as still another embodiment of the present invention, as shown in FIG. The front plate 48 of the housing 41 may be provided with an opening 231 through which the stocker 35 can be inserted and ejected. In such a configuration, the user inserts and stores the disk cassettes 34 one by one from the insertion / ejection opening 47 of the embodiment shown in FIGS. 1 to 11 described above in each of the storage spaces 100a to 100d of the stocker 35. In addition, since the plurality of disk cassettes 34 can be stored in the storage spaces 100a to 100d, respectively, with the stocker 35 taken out, the usability is improved.

[0069]

According to the first aspect of the present invention, an opening is formed at the bottom of the stocker so as to open downward to the storage space of the disk cassette stored at the lowermost position, and the opening driving means is provided in this opening. Since the connection plate is fitted movably in the front-rear direction, compared with the above-described configuration of the related art, the connection plate between the stocker and the loading holder for enabling the front-rear displacement of the connection plate is provided. The gap can be omitted, and the interval between the reproducing means and the stocker can be reduced, whereby the overall configuration can be reduced in size.

Further, since the distance between the stocker and the loading holder is reduced, the moving distance of the disk cassette moving between the stocker and the loading holder can be reduced, and the operation of attaching and detaching the disk cassette to the reproducing means can be performed quickly. .

According to the second aspect of the present invention, since the opening has an irregular shape in the front-rear direction, it is possible to avoid the above-described problem of the insertion operation failure, and to perform the operation of inserting the disk cassette into the stocker. It can be done reliably.

According to the third aspect of the present invention, regardless of the state in which the connecting plate is disposed at the front position or the rear position on the lower surface defining the lowermost storage space, it extends over the entire length in the front-rear direction. Since at least one of the bottom of the stocker and the connecting plate can be arranged without a break, the end of the casing of the disc cassette is
It is possible to reliably eliminate the problem that the insertion operation failure occurs due to the fitting into the opening.

According to the present invention, the bottom surface of the bottom of the stocker that faces the lowermost storage space and the upper surface of the connecting plate of the loading drive means are substantially flush with each other. The lower part of the casing of the stored disk cassette can be supported by the upper surface of the connecting plate together with the drawing of the stocker. For example, the disk cassette can be stably held without rattling due to vibration generated during running of the vehicle. And the connecting plate is supported in contact with the lower portion of the casing of the disk cassette, so that the vibration of the connecting plate and the respective side plates connected by the connecting plate is also maintained, and the disc is retained. Noise due to the contact noise between the casing of the cassette and the connecting plate can be eliminated.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a part of a reproducing apparatus 31 according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an overall configuration of a reproducing apparatus 31.

FIG. 3 is an exploded perspective view of a loading holder 39 and a loading driving unit 51.

FIG. 4 is a plan view of the playback device 31 with a top plate 46 removed.

FIG. 5 is a sectional view showing a bottom plate 42 and a connecting plate 74 of the stocker 35.

FIG. 6 is a sectional view showing a bottom portion 201 and a connecting plate 202 of a stocker 35 according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view for explaining an operation of inserting the disk cassette 34 into each of the storage spaces 100a to 100d of the stocker 35.

FIG. 8 is a stocker 35 according to still another embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a bottom portion 211 and a connecting plate 212 of FIG.

FIG. 9 is a sectional view showing a bottom portion 215 and a connecting plate 216 of a stocker 35 according to still another embodiment of the present invention.

FIG. 10 is a sectional view showing a bottom portion 220 and a connecting plate 221 of a stocker 35 according to still another embodiment of the present invention.

FIG. 11 is a sectional view showing a bottom part 222 and a connecting plate 223 of a stocker 35 according to still another embodiment of the present invention.

FIG. 12 is a sectional view showing a reproducing apparatus according to still another embodiment of the present invention.

FIG. 13 is a simplified cross-sectional view showing a typical conventional reproducing apparatus 2.

FIG. 14 is a perspective view of the reproducing apparatus 2 from which a hazing 20 has been removed.

FIG. 15 is a plan view showing a side plate 10 of the loading driving means 9;

[Explanation of symbols]

REFERENCE SIGNS LIST 31 reproducing device 32 disk-shaped recording medium 33 casing 34 disk cassette 35 stocker 36 reproducing means 39 loading holder 40 transport means 41 housing 51 loading driving means 72, 73 side plate 74, 202, 212, 216, 221, 222 connecting plate 75 to 78 Slant guide grooves 100a to 100d Storage space 110, 203, 213, 223, 231 Opening

Claims (4)

[Claims] 1. A stocker for accommodating a plurality of thin disc cassettes in which a disc-shaped recording medium is accommodated in a casing, and a disc-shaped disc cassette in a casing of the disc cassette mounted and disposed below the stocker at intervals. Reproducing means for reproducing the recorded content of the recording medium; a lowering position which is arranged between the stocker and the reproducing means, holds the disk cassette and mounts the disk cassette on the reproducing means, and displaces upward from the lowering position. And a loading holder that moves up and down between the reproducing means and the ascending position at which the disc cassette is separated from the reproducing means. A pair of side plates, and each side plate interposed between the loading holder and the stocker. And a loading driving means for vertically displacing the loading holder by displacing the loading holder between the lowered position and the raised position, wherein the bottom of the stocker has a connecting plate for the disk cassette stored at the lowest position. An apparatus for reproducing a disk-shaped storage medium, wherein an opening is formed in which a storage space is opened facing downward and a connecting plate of a loading drive means is movably fitted in a front-rear direction. 2. One or more of the bottom of the stocker and the connecting plate of the loading driving means are formed with one or a plurality of convex portions which are convex in the front-rear direction facing the opening, and the bottom of the stocker and the loading means are provided. 2. The connecting plate according to claim 1, wherein at least one of the connecting plates has one or a plurality of concave portions to which the convex portions which are concave in the front-rear direction facing the opening can be fitted. A playback device for a disk-shaped recording medium. 3. The disk-shaped recording medium according to claim 2, wherein the concave portion and the convex portion have an area where the concave portion and the convex portion are partially separated from each other in the front-rear direction in a state of being most separated in the front-rear direction. Playback device. 4. The bottom surface of the bottom of the stocker facing the lowermost storage space and the upper surface of the connecting plate of the loading drive means are substantially flush with each other.
A playback device for a disk-shaped recording medium according to any one of the above.