JPH0785557A - Disk device - Google Patents

Abstract

PURPOSE:To make a feeling of inserting a cartridge good. CONSTITUTION:A shutter opener 49 is provided on one side part of a holder 43 to be relatively movable back and forth to the holder 43, and a cartridge inserting part 48 is formed by this holder 43 and the shutter opener 49. A shutter closing spring 56 formed with a restraining part 56b in its tip part is fixed to this shutter opener 49, and an opening part 54 for allowing the restraining part 56b of the shutter closing spring 56 to project to a cartridge inserting part 48 is formed in a surface part of the shutter opener 49 on the side of the cartridge inserting part 48. Then, the shutter opener 49 of the holder 43 is held by a holding pin 51a for withdrawing the restraining part 56b out of the cartridge inserting part 48 from the opening part 54 in interfering with the shutter closing spring 56 when the holder 43 is forwardly positioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device for reproducing or writing an information recording disk of a mini disk cartridge of a magneto-optical recording system.

[0002]

2. Description of the Related Art In recent years, a disc cartridge (hereinafter referred to as a cartridge) in which an information recording disc is housed in a protective cartridge case has been proposed. As an example of this kind of cartridge, there is a magneto-optical recording type mini disk cartridge, and the cartridge 100 includes an information recording disk 102 housed in a cartridge case 101 and one side of the cartridge case 101 as shown in FIG. Disk access hole 103 provided in
And a slide shutter 104 for opening and closing the disc access hole 103. Cartridge holding recesses 105 are formed on the left and right front sides of the back surface of the cartridge case 101.
A groove portion 106 is formed along the front-rear direction on the right end surface of the shutter. A shutter locking member (not shown) is provided in the middle of the groove portion 106, and the shutter locking member is provided on the groove portion 106 side with a spring ( (Not shown),
It can be withdrawn. The locking claw portion 107 of the slide shutter 104 is locked to the shutter locking member. A shutter opening / closing hole 108 is formed in the right end surface portion of the slide shutter 104.

As a device for recording / reproducing information on such a cartridge 100, there is a disk device. In this disc device, the holder 110 for transporting and ejecting the cartridge 100 has the engaging portion 1 in the shutter opening / closing hole 108 of the slide shutter 104 when the cartridge 100 is ejected, as shown in FIG.
A shutter closing spring 112 for engaging 11 to close the slide shutter 104 is provided.

[0004]

However, in the above-mentioned conventional disk device, when the holder 110 is located at the front side (carry-in side of the cartridge 100), the tip of the shutter closing spring 112 is fixed. Locking part 11
Since 1 is always protruding into the cartridge insertion portion 113, when the cartridge 100 is inserted into the cartridge insertion portion 113, the locking portion 111 of the shutter closing spring 112 hits the cartridge 100.
There is a problem in that the feeling of insertion of the cartridge 100 is poor and that the cartridge 100 is scratched by the contact of the locking portion 111.

The present invention has been made in view of the above problems, and its purpose is not only to improve the feeling of insertion of the cartridge, but also to attach the shutter closing spring to the cartridge. Another object of the present invention is to provide a disc device that is not scratched by the contact of

[0006]

In order to achieve the above object, the present invention is directed to one side portion of a holder for carrying a disc cartridge containing an information recording disc and equipped with a slide shutter in a predetermined transport direction. In addition, a shutter opener is provided so as to be capable of reciprocating relative to the holder in the transport direction, and a cartridge insertion portion is formed by this holder and the shutter opener, and a locking portion is formed at the tip portion of this shutter opener. The shutter closing spring is fixed, and an opening for projecting the locking portion of the shutter closing spring to the cartridge insertion portion is formed on the surface portion of the shutter opener on the cartridge insertion portion side, and the holder is
When this holder is located on the loading side of the cartridge,
It is characterized in that an escape mechanism for retracting the locking portion of the shutter closing spring from the opening portion to the outside of the cartridge insertion portion is provided. Then, the release mechanism holds the shutter opener, and when the holder is located on the cartridge loading side, the holding pin that interferes with the shutter closing spring and retracts the locking portion from the opening to the outside of the cartridge insertion portion. It is preferable that

[0007]

With this structure, when the holder is located on the carrying-in side of the cartridge, the escape mechanism retracts the engaging portion at the tip of the shutter closing spring from the opening to the outside of the cartridge insertion portion. When the holder moves in the transport direction, the escape mechanism does not work, and the locking portion of the shutter closing spring projects into the cartridge insertion portion from the opening.

As described above, when the holder is located on the carrying-in side of the cartridge, the locking portion at the tip of the shutter closing spring is retracted from the opening to the outside of the cartridge insertion portion. Even if the cartridge is inserted into the cartridge insertion part, the locking part of the shutter closing spring does not hit the cartridge, so the feeling of insertion is good, and the cartridge may be damaged by the contact of the spring locking part. Disappear.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the disk device according to the present invention with a part thereof omitted, FIG. 2 is a perspective view of the disk device with a part of an upper chassis removed, and FIG. 3 is an exploded perspective view of the disk device. 1 to 3, the Y direction is the rear and the Z direction is the front.

The disk device of the present invention comprises a main chassis 1, a suspension chassis 2 and an upper chassis 3 as shown in FIGS. The main chassis 1 is a quadrangular frame-shaped body, and its front surface portion 1a
A cartridge insertion port 4 formed by a notch portion is formed in this. Damper mounting portions 5 are formed on the left and right side portions 6a, 6b and the rear side portion 6c of the main chassis 1, and the left, right surface portions 1b, 1c and the rear surface portion 1d of the main chassis 1 are
The portion facing the damper mounting portion 5 is a cutout portion 26a.
It has become. Further, notches 26 are formed at the rear portions of the left and right portions 6a and 6b of the main chassis 1.
Further, spring engaging pieces 7 are provided at the four corners of the main chassis 1. Further, a double insertion preventing lever 13 is provided at the cartridge insertion opening 4 with some movement in the vertical direction.

A mechanical lock mechanism A is provided on the left and right side portions 6a and 6b of the main chassis 1.
The mechanical lock mechanism A has front and rear lock members 8 and 9 as shown in FIGS. 7 and 8, and lock portions 10 and 11 are formed at the front ends of these lock members 8 and 9. The lock portions 10 and 11 have a guide portion 12 that converges in the central locking recesses 10a and 11a, and the rear lock member 9 has a long hole 1 that is long in the vertical direction.
8 is formed.

The front and rear lock members 8 and 9 are attached to the horizontal guide holes 14 and 15 formed in the right side portion 6b by pins 16 and 17 so as to be movable in the front and rear direction. A lever 1 is provided on the right side portion 6b of the main chassis 1.
9 is rotatably provided with a middle portion thereof supported by a fulcrum pin 20, and a front end portion of this lever 19 is connected to a rear end portion of a connecting rod 21 by a pin 22.
The front end of 1 is connected to the rear end of the lock member 8 by a pin 23. A guide pin 24 is attached to the rear end portion of the lever 19, and the guide pin 24 is movably inserted into the elongated hole 18 and the cutout portion 26. An operating pin 25 is attached to the front side of the lever 19 so as to project inward of the main chassis 1.

The suspension chassis 2 has four
Spring locking pieces 27 are provided at the two corners, and springs 28 are provided between the spring locking pieces 27 and the spring locking pieces 7 of the main chassis 1, and the springs 28 provide suspension chassis. 2 is held by the main chassis 1 in a floating state. A damper 29 is interposed between the suspension chassis 2 and the main chassis 1. The damper body 29a of each of the dampers 29 is fixed to the damper mounting portion 5 of the main chassis 1.
In addition, the left and right side surfaces 2 of the suspension chassis 2
Lock pins 30 and 31 are fixed to the front and rear of a and 2b, and the front lock pin 30 is located in the cutout portion 26a and in front of the lock portion 10 of the lock member 8.
The rear lock pin 31 is located inside the cutout portion 26 and behind the lock portion 11 of the lock member 9. Note that this state is the unlocked state.

The suspension chassis 2 has a turntable (not shown) arranged at the center thereof, and the suspension chassis 2 has a punching portion (shown in the figure) located to the right of the turntable. (Not shown)
Optical pickups (not shown) are provided inside the punching section, and the optical pickups are moved in the left-right direction (radial direction of the disk) by a screw feeding mechanism (not shown). A mechanism such as a turntable drive motor is provided on the back side of the suspension chassis 2.

Holder guide portions 34, 35 are provided on the left and right side surfaces 2a, 2b of the suspension chassis 2 as shown in FIG. 4 (1). The left holder guide portion 34 includes a linear guide hole 36 formed from the front portion to the rear portion of the left side surface portion 2a and a descending hole 37 that extends downward from the rear end portion of the guide hole 36. The guide portion 35 includes a linear guide hole 38 formed in the right side surface portion 2b from the front portion to the rear portion, a downward hole 39 in a middle portion of the guide hole 38, and a rear end portion of the guide hole 38 downward. A descending hole 40 to go,
The slide guide member 41 has elasticity and is arranged in parallel along the right side surface portion 2b. In addition, a stopper 60 is provided on the suspension chassis 2 on the right side of the rear portion to prevent the shutter opener 49 from moving rearward.
Is provided.

The suspension chassis 2 has holder guide portions 34, 3 on the left and right side surfaces 2a, 2b thereof.
5, the holder 43 is provided so as to be movable in the front-rear direction. That is, the left side portion of the holder 43 is shown in FIG.
As shown in FIG. 4, a holding portion 44 having an inverted U-shaped cross section is formed, the end surface of the holding portion 44 is a left side surface portion 44a, the right side portion of the holder 43 is bent at a right angle, and the right side surface portion 4 is formed.
4b is formed. Further, one holder pin 42 is attached to the front portion of the left side surface portion 44a of the holder 43, and two holder pins 45a and 45b are attached to the front and rear sides of the right side surface portion 44b. Also, as shown in FIG. 6A, cartridge holding hooks 46 are attached to the left and right sides of the back side of the holder 43 so as to be swingable in the left and right directions by pins 47 as shown in FIG. 46 is biased toward the center of the holder 43 by a spring 48. A cartridge receiving portion 63 is formed on the right and left sides of the surface of the holder 43 (see FIG. 5).

A shutter opener 49 is attached to the right side of the holder 43 constructed as described above so as to be movable in the front-rear direction. That is, this shutter opener 4
Reference numeral 9 denotes an upper surface portion 49a which is in sliding contact with the right side portion of the holder 43.
And an outer side surface portion 49b, and the upper surface portion 49a.
Is formed with a slide hole 50 extending in the front-rear direction, and holding pins 51a and 51b also functioning as shutter closing spring release pins are inserted into the slide hole 50 on the front and rear of the right side portion of the holder 43. Holding pin 51
a and 51b hold the shutter opener 49.

An inner side surface portion 52 and a horizontal surface portion 53 are formed inside the front portion of the shutter opener 49 as shown in FIGS. 6 (1) and 6 (4), and an opening portion 54 is formed in the inner side surface portion 52. The inner side surface portion 52 and the front end portions of the horizontal surface portion 53 are open to the outside, and the shutter opener 49 is formed.
The inner side surface portion 52, the horizontal surface portion 53, and the holding portion 44 on the left side of the holder 43 constitute a cartridge insertion portion 58, and an opening / closing door 59 is provided in the cartridge insertion portion 58 so as to be openable and closable.

A shutter locking release claw 55 is provided inside the middle portion of the shutter opener 49.
Further, a base portion 56a of a shutter closing spring 56 is fixed inside the outer side surface portion 49b of the shutter opener 49, and the shutter closing spring 56 is bent inward.
A locking portion 56b bent in a V shape in a plan view is formed at the tip portion thereof, and the locking portion 56b projects from the opening 54 into the cartridge insertion portion 58. A stopper 57 is formed at the rear end of the shutter opener 49. The holding pin 51a on the front side constitutes a relief mechanism for retracting the locking portion 56b of the shutter closing spring 56 from the opening 54 to the outside of the cartridge insertion portion 58.

The holder 43 to which the shutter opener 49 is attached as described above is provided with the guide pin 42 on the left side thereof on the left side surface portion 2 of the suspension chassis 2.
a is movably inserted into the guide hole 36 of the holder guide portion 34, and the right front guide pin 45a is inserted into the guide hole 38 of the holder guide portion 35 of the right side surface portion 2b of the suspension chassis 2. The lower guide pin 45b on the right side of the member 40 is slidably contacted with the lower surface of the member 40, and the rear guide pin 45b on the right side of the holder chassis 35 of the right side face 2b of the suspension chassis 2.
Is movably inserted into the guide hole 38 of the slide guide member 40 while being slidably in contact with the upper surface of the slide guide member 40, and is attached to the suspension chassis 2.

A loader guide 65 is fixed in the front-rear direction on the left side of the rear surface of the upper chassis 3 as shown in FIGS. 3 and 9 (1).
A guide hole 66 is formed along the front-rear direction. A guide hole 67 is formed in the rear portion of the upper chassis 3 along the left-right direction.

A loader 68 and a loader moving mechanism C for reciprocating the loader 68 are provided on the back surface of the upper chassis 3. The loader 68 has a surface portion 68.
Left and right side portions 70, 71 bent at a right angle to the surface portion 68a are provided on the left and right sides of a, and the right side portion 71
The holder pin engaging portions 72 and 73 are formed in the front and rear, and the lock pin engaging portion 74 is formed in the intermediate portion. The holder pin engaging portions 72, 73 have engaging piece portions 72a, 73a protruding forward, and the lock pin engaging portion 74 has an engaging piece portion 74a protruding backward. There is. Further, the left side surface portion 70 has a holder pin engaging portion having the same configuration as the holder pin engaging portion 72 at the front portion and a lock pin engaging portion having the same configuration as the lock pin engaging portion 74 at the middle portion. Are formed respectively.

A guide hole 68b extending in the left-right direction is formed on the right side of the rear portion of the loader 68. The front end of the link 78 is attached by a pin 79 to the left rear end of the surface 68a of the loader 68 as shown in FIG. 2, and the guide pin 80 is provided at the rear end of the link 78. The guide pin 80 is inserted into the guide hole 67 in the rear portion of the upper chassis 3. Further, a rear end portion of a link 81 is attached to the right rear end portion of the upper chassis 3 by a pin 82, and a guide pin 83 is provided at a front end portion of the link 81. The guide pin 83 is the loader 68. Is inserted in the guide hole 68b in the rear part of the link 78, 81
Are rotatably connected to each other by a pin 84 at the central intersection.

The loader moving mechanism C is shown in FIGS.
As shown in FIG. 5, the first rack member 85 and the second rack member 86 are provided along the loader guide 65, and the first rack member 85 is slidable at the end of the second rack member 86. The second rack member 8 that has been overlapped
Front and rear guide holes 88 and 89 are formed in the rising wall portion 87 of FIG. Then, guide pins 91 and 92 are fixed to the front and rear of the rising wall portion 90 of the first rack member 85, the front guide pin 91 penetrates the guide hole 88, and the rear guide pin 92 is The guide pins 89 pass through the guide hole 89, and the ends of the guide pins 91 and 92 are connected to the right side face 71 of the loader 68.

A spring locking portion 93 is provided at the rear end portion of the first rack member 85, and the second rack member 89 is provided.
A spring engaging portion 94 is provided at the front end of the spring, and a spring 95 is stretched between the spring engaging portions 93 and 94.

A gear 96 meshes with a rack tooth portion 86a of the second rack member 86, and a pinion of a drive motor (not shown) provided on the back surface of the upper chassis 3 has a gear train (not shown). ) And the gear 96.

The upper chassis 3 constructed as described above is superposed on the main chassis 1 and fixed to the main chassis 1. In this case, the loader 68
The front and rear holder pin engaging portions 72, 73 provided on the right side of the holder slidably engage with the holder pins 45a, 45b, and the holder pin engaging portion 72 provided on the left side of the loader 68 is the holder pin engaging portion. 42 is slidably engaged. A cartridge entrance / exit 98 is formed by the front edge of the upper chassis 3 and the cartridge insertion opening 4 of the main chassis 1.

Before insertion of the cartridge (the same as that described in the above-mentioned conventional technique) 100, the suspension chassis 2 is locked to the main chassis 1 by the left and right mechanical lock mechanisms A. That is, the lock member 8 on the front side of the mechanical lock mechanism A
In the forward moving state, the front lock portion 10 of the lock member 8 grips the front lock pin 30 of the suspension chassis 2, and the rear lock member 9 moves rearward in the lock member 9. The lock portion 11 at the front end of the suspension grips the lock pin 31 on the rear side of the suspension chassis 2.

Next, the operation of the disk device configured as described above will be described. As shown in FIG. 6 (3), when the holder 43 is located on the cartridge inlet / outlet 98 side, the holding pin 51a, which also functions as a shutter closing spring release pin of the holder 43, is located forward and the shutter closing spring is located. By interfering with the intermediate portion of 56, the locking portion 56b at the tip of the shutter closing spring 56 is retracted from the opening 54. Therefore, the cartridge 10
0 from the cartridge inlet / outlet port 98 to the holder 43
Since the locking portion 56b of the shutter closing spring 56 does not interfere with the cartridge 100 when it is inserted into the cartridge inserting portion 58, the feeling of insertion of the cartridge 100 is improved, and the cartridge 100 has the shutter closing spring 56 The scratches due to the contact of the locking portion 56b are prevented.

When the cartridge 100 is inserted into the cartridge insertion portion 58 of the holder 43 from the cartridge inlet / outlet 98 and the front end face portion of the cartridge 100 is brought into contact with the cartridge receiving portion 63 of the holder 43, the shutter opener 49 is moved. The shutter locking release claw 55 is inserted into the groove 106 of the cartridge 100, and the left and right cartridge gripping hooks 46 of the holder 43 are engaged with the left and right cartridge gripping recesses 105 of the cartridge case 101, so that the cartridge 1
00 is the holder 4 via the cartridge holding hook 46.
Held at 3.

By pushing in the cartridge 100, power is turned on (switched on) to a control circuit (not shown) of the drive motor of the loader moving mechanism C, and the loader 6 is loaded by the loader moving mechanism C.
8 operates to release the slide shutter of the cartridge 100, unlock the suspension chassis 2 and automatically retract the cartridge 100.

(Operation of Loader 68) The drive motor is driven to rotate the gear 96 via the pinion and the gear train, and the second rack member 86 meshing with the gear 96 at the rack tooth portion 86a is moved rearward, The guide pins 91 and 92 are pushed by the front end portions of the guide holes 88 and 89 formed in the second rack member 86, and the loader 68 moves rearward. In this case, the first rack member 85 moves rearward as the loader 68 moves. When the gear 96 reaches the front side of the rack tooth portion 86 a of the second rack member 86, the gear 96 meshes with the rear portion of the rack tooth portion 85 a of the first rack member 85. Then, the gear 96 is connected to the second rack member 86.
When the rack tooth portion 86a of the
The first rack member 85 is moved backward by meshing only with the rack tooth portion 85a of the above. This movement causes the loader 68 to move backward via the guide pins 91 and 92.
Further, the rearward movement of the first rack member 85 causes the second rack member 86 to move rearward via the spring 95.

(Release Operation of Slide Shutter 104 in Cartridge 100) Front and rear holder pin engaging portions 72, 73 provided on the right side of the loader 68 are slidably engaged with the holder pins 45a, 45b, In addition, the holder pin engaging portion 7 provided on the left side of the loader 68
Since 2 is slidably engaged with the holder pin 42, the rearward movement of the loader 68 causes the holder 43 to move rearward and the cartridge 100 to move rearward.

For this reason, the holder 43 is retracted, the holding pin 51a is disengaged from the intermediate portion of the shutter closing spring 56, and the locking portion 56b at the tip of the shutter closing spring 56 is inserted from the opening 54 into the cartridge insertion portion. Project into 58. In this case, the stopper 57 at the rear end portion of the shutter opener 49 comes into contact with the stopper 60 provided on the suspension chassis 2 to allow the shutter opener 4 to move.
9 does not move backwards.

The shutter lock release claw 55 of the shutter opener 49 pushes and retracts the shutter lock member of the cartridge 100 to lock the lock claw portion 107 of the slide shutter 104 to the shutter lock member. To release. At this time, the shutter closing spring 5
The locking portion 56b at the tip of the slide shutter 1 is
The shutter opening / closing hole 108 of 04 is locked. For this reason, the slide shutter 104 is released as the cartridge 100 moves rearward (FIG. 6 (2)).
(3)).

(Unlocking Operation of Suspension Chassis 2) The holder 43 is moved rearward by the rearward movement of the loader 68. The movement of the holder 43 causes the holder 43 to shift to FIGS. As shown in 1) and (2), the engaging piece 74a of the lock pin engaging portion 74 of the loader 68 is the lever 19 of the mechanical lock mechanism A.
7 (3) and FIG. 8 by engaging the operating pin 25 of FIG. 7 and guiding the operating pin 25 upward.
In (4), the front and rear lock members 8 and 9 are pulled inward by rotating clockwise. To this end, FIG. 8 (5)
As shown in FIG. 6, the front lock pin 30 of the suspension chassis 2 is removed from the front lock portion 10 of the lock member 8, and the rear lock lock of the suspension chassis 2 from the front lock portion 11 of the rear lock member 9. The pin 31 is removed, and the suspension chassis 2 is unlocked. Therefore, the suspension chassis 2 is supported by the springs 28 at the four corners thereof.

(Automatic retracting operation of the cartridge 100) Further, the holder 43 moves rearward, and the holder pins 42, 45a, 45b are guided by the left and right holder guide portions 34, 35 of the suspension chassis 2. The descending holes 3 of these holder guide portions 34, 35
7, 39, 40 and the cartridge 10
The hub of the turntable fits into the center (not shown) looking through the opening at the center of the bottom surface of the 0. At this time, the holder pins 42, 45a, 45b are disengaged from the holder pin engaging portions 72, 73, but the engaging piece portions 72a, 73 are removed.
a does not come off from the holder pins 42, 45a, 45b.

In this state, power is turned on (switched on) to the control circuit of the drive motor of the turntable (none of which is shown), and the control circuit of the drive motor of the optical pickup (not of which is shown) is supplied. When the power is turned on (switch on), the information recording disk 102 is rotated, and the optical pickup is moved in the left-right direction (radial direction of the disk) by a screw feeding mechanism to perform reproduction or writing.

Next, when reproduction or writing is completed,
The cartridge 100 is moved by the reverse movement of the loader 68.
And the suspension chassis 2 is locked.

(Reverse Movement of Loader 68) The reverse rotation of the drive motor causes the gear 96 to rotate in the reverse direction via the pinion and the gear train, and the first rack member 85 meshed with the gear tooth 96a at the rack tooth portion 85a. It moves forward, and the loader 68 moves forward via the guide pins 91 and 92.
The gear 96 is the rack tooth portion 85 of the first rack member 85.
When reaching the rear side of "a", the gear 96 meshes only with the rack tooth portion 86a of the second rack member 86, and moves the second rack member 86 forward. This second rack member 86
The guide pins 91 and 92 are pushed by the rear end portions of the guide holes 88 and 89 formed in the loader 89 to move the loader 89 forward.

(Discharging Operation of Cartridge 100) By the forward movement of the loader 68, the engaging piece portions 72a, 73a of the front and rear holder pin engaging portions 72, 73 provided on the loader 68 become the holder pins 45a, 45b, 4
By pushing 2 forward, the holder 43 moves forward, and the cartridge 100 moves forward. The holder 43 moves forward to move the holder pins 42, 45.
a and 45b are guided by the left and right holder guide portions 34 and 35 of the suspension chassis 2, and the downward holes 3
Pulled back from 7, 39, 40 to straight holes 36, 38,
The center of the cartridge 100 moves away from the turntable, is guided by the left and right holder guide portions 34 and 35, and is moved forward, and is discharged from the cartridge insertion portion 99 of the holder 43 to the cartridge inlet / outlet 98 side.

(Closing Operation of Slide Shutter 104 in Cartridge 100) When the cartridge 100 is ejected, the locking portion 56b at the tip of the shutter closing spring 56 is locked in the shutter opening / closing hole 108. The slide shutter 104 is closed by the forward movement of the holder 43. Then, the shutter locking release claw 55 of the shutter opener 49 is disengaged from the shutter locking member of the cartridge 100 to be projected, and the locking claw portion 1 of the slide shutter 104.
07 is locked by the shutter locking member. Further, the locking portion 56b at the tip of the shutter closing spring 56 is disengaged from the shutter opening / closing hole 108.

(Locking Operation of Suspension Chassis 2) When the cartridge 100 is ejected, the loader 6
8 moves forward, the lock pin engaging portion 74 of the loader 68 pushes the operating pin 25 of the lever 19 forward and pushes down the operating pin 25, so that the lever 19 moves to the position shown in FIG. , (4) rotate counterclockwise to push the front and rear lock members 8 and 9 outward. For this reason, the front lock portion 10 of the front lock member 8 fixes the front lock pin 30 of the suspension chassis 2, and the front lock portion 1 of the rear lock member 9 is fixed.
1 is a lock pin 31 on the rear side of the suspension chassis 2.
To fix.

According to the above embodiment, the holder 43
For holding the shutter opener 49 of the holder 43
When the holder 43 is positioned forward, the holding pin 51a that interferes with the shutter closing spring 56 and retracts the locking portion 56b from the opening 54 to the outside of the cartridge insertion portion 58 causes the holder 43 to move forward. When located, the holding pin 51a of the holder 43
Is located in front of the shutter closing spring 56 and interferes with the shutter closing spring 56, so that the locking portion 56b of the shutter closing spring 56 is opened.
4, the cartridge 4 is retracted to the outside of the cartridge insertion portion 58. When the holder 43 moves rearward, the holding pin 51a comes off the shutter closing spring 56,
The locking portion 56b of the shutter closing spring 56 has the opening 5
4 into the cartridge insertion portion 58.

As described above, when the holder 43 is located at the front, the locking portion 56b at the tip of the shutter closing spring 55 is inserted from the opening 54 into the cartridge insertion portion 5.
8 is in a state of being retracted outside, so that even if the cartridge 100 is inserted into the cartridge insertion portion 58, the locking portion 56 of the shutter closing spring 56 is inserted into the cartridge 100.
Since b does not hit, the feeling of insertion is improved, and the cartridge 100 is not scratched by the contact of the locking portion 56b.

[0046]

As described above, according to the present invention, a shutter opener is provided on one side of a holder for carrying a disk cartridge containing an information recording disk and having a slide shutter in a predetermined carrying direction. In contrast, it is provided so that it can reciprocate relatively in the transport direction, a cartridge insertion portion is formed by this holder and the shutter opener, and a shutter closing spring having a locking portion at the tip is fixed to this shutter opener. An opening is formed on the surface of the shutter opener on the side of the cartridge insertion portion for allowing the engagement portion of the shutter closing spring to project to the cartridge insertion portion, and when the holder is positioned on the cartridge loading side, the shutter is opened. Relief mechanism that retracts the locking part of the closing spring from the opening to the outside of the cartridge insertion part Because provided, when the holder is positioned on the carry-in side of the cartridge, by the relief mechanism, locking of the distal end of the shutter closing spring is retracted into the cartridge insertion part outer than the opening. When the holder moves in the transport direction, the escape mechanism does not work, and the locking portion of the shutter closing spring projects into the cartridge insertion portion from the opening.

As described above, when the holder is located on the carrying-in side of the cartridge, the locking portion at the tip of the shutter closing spring is retracted from the opening to the outside of the cartridge insertion portion. Even if the cartridge is inserted into the cartridge insertion part, the engagement part of the shutter closing spring does not hit the cartridge, so that the feeling of insertion is improved and the cartridge is not damaged by the contact of the engagement part. .

[Brief description of drawings]

FIG. 1 is a perspective view of a disk device according to the present invention with a part thereof omitted.

FIG. 2 is a perspective view of the disk device with a part of an upper chassis removed.

FIG. 3 is an exploded perspective view of the disk device.

FIG. 4A is a perspective view of a cartridge ejected state in the disc device, FIG. 4B is a perspective view of a cartridge loaded state in the disc device, and FIG.

FIG. 5 is an exploded perspective view of a holder in the disk device.

6 (1) is a plan view of the slide shutter of the cartridge in the same holder in the open state (2) is a plan view of the slide shutter of the cartridge in the same holder in a half-open state (3) shows the slide shutter of the cartridge in the same holder Plan view of the closed state (4) is a view from the X direction of (1)

FIG. 7 (1) is a right side view of the disk device according to the present invention with a part thereof omitted. (2)-(4) is a side view showing each unlocking operation of the mechanical lock mechanism in the disk device.

8 (1) to (5) are explanatory views of respective operations for unlocking the mechanical lock mechanism.

9 (1) is a side view with a part of the loader moving mechanism of the disk device according to the present invention omitted, and (2) and (3) are explanatory views of the operation of the first and second rack members in the same loader moving mechanism.

10 (1) to (3) are explanatory views of the operating principle of the first and second rack members in the same loader moving mechanism.

FIG. 11 is a perspective view of a cartridge.

FIG. 12 is a plan view of a holder in a conventional disc device.

[Explanation of symbols]

 1 Main Chassis 2 Suspension Chassis 3 Upper Chassis 43 Holder 48 Cartridge Insertion Section 49 Shutter Opener 51a Holding Pin 54 Opening 56 Shutter Closing Spring 56a Locking Section 100 Cartridge

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroto Nishida Inventor Hiroto Nishida 2-45, Hikosan-cho, Kanazawa, Ishikawa Prefecture Matsushita Communication Kanazawa Research Institute (72) Inventor Toshiaki Sasaki Tsunashima East 4 in Kohoku Ward, Yokohama, Kanagawa 3-3-1 Matsushita Communication Industrial Co., Ltd.

Claims (2)

[Claims] 1. A shutter opener reciprocates relative to the holder in a carrying direction on one side of a holder that carries a disc cartridge containing an information recording disc and equipped with a slide shutter in a predetermined carrying direction. If possible, the holder and shutter opener form a cartridge insertion part, and a shutter closing spring with a locking part at the tip is fixed to this shutter opener, and the surface of the shutter opener on the cartridge insertion part side is fixed. Forming an opening for allowing the locking portion of the shutter closing spring to project into the cartridge insertion portion, and the holder,
When this holder is located on the loading side of the cartridge,
A disk device comprising a relief mechanism for retracting the engagement portion of the shutter closing spring from the opening portion to the outside of the cartridge insertion portion. 2. The escape mechanism holds the shutter opener, and when the holder is located on the cartridge loading side, the locking mechanism interferes with the shutter closing spring to move the locking portion from the opening to the outside of the cartridge insertion portion. The disk device according to claim 1, wherein the disk device comprises a holding pin that can be retracted.