JP2000021062A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely open and close a shutter with a simple constitution by opening the shutter with a shutter opener after a shutter closer spring and a cartridge are brought in contact and next a shutter closer and the shutter are engaged with each other. SOLUTION: When a cartridge 105 is inserted in a disk device, a pulling pawl 61 is engaged with a locking part 126 and the transferring of the cartridge is performed to a playing position by a driving means. When the right corner of the frontward of the cartridge 105 advancing by being guided with driven rollers 4, 5 is abutted on the bent part 21 of a shutter closer spring, a shutter closer 1 is rotated in the clockwise direction and a close pawl 11 is engagingly inserted into the lid closing operation hole 108 of a shutter member 106. A this time, even when the relative position between the closer pawl 11 and the lid closing operation hole 108 is abnormal, an excessive load is absorbed by the elasticity of the shutter closer spring. Thereafter, when the cartridge advances more, since a shutter opener 3 is abutted on the shutter member 106 to stop the movement of the cartridge and a shutter opening operation is started.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive having a shutter opening / closing mechanism for operating a shutter member of a disk cartridge.

[0002]

2. Description of the Related Art Conventionally, a disk cartridge has been proposed in which a recording disk such as an optical disk or a magneto-optical disk is rotatably housed in a cartridge.
Openings are formed in these disk cartridges. Through these openings, an optical pickup device and a magnetic head device can face the recording disk, and writing and reading of information signals can be performed. I have.

[0003] The openings in these disk cartridges can be opened and closed by a shutter member slidably mounted on the cartridge. That is, when the disk cartridge is not used,
The shutter member closes the opening to prevent dust and fingers from entering the cartridge, and when the disc cartridge is used, the shutter member slides to form the opening as described above. .

[0004] These recording / reproducing apparatuses are provided with a shutter opening / closing mechanism for opening / closing a shutter member in accordance with insertion / removal of a disk cartridge into / from the recording / reproducing apparatus. This shutter opening and closing mechanism
Normally, a shutter opening claw that slides the shutter member with respect to the cartridge to open the opening and a shutter closing claw that slides the shutter member with respect to the cartridge to close the opening are configured. In recent years, in particular, in recent years, there has been a strong demand for reduction in size and weight of the apparatus, and at present, there is a demand for a high-performance shutter opening / closing mechanism that can reliably function with a simple configuration.

In such a situation, Japanese Patent Application Laid-Open No. 8-45159 discloses a conventional technique of a shutter opening / closing mechanism having a simple structure. Hereinafter, a shutter opening / closing mechanism described in the publication will be described. First, FIG. 9 of the publication shows a cartridge 105 in which a disk is rotatably stored.

Here, the cartridge 105 has a magnetic head opening 123 for allowing a part of the signal recording surface of the disk to face outward on a main surface portion on the upper surface side, and has a main surface portion on the lower surface side. An optical pickup opening 122 is provided at a position facing the magnetic head opening 123. The opening 123 for the magnetic head and the opening 122 for the optical pickup can be opened and closed by a shutter member 106. The shutter members 106 are opposed to each other in parallel to the openings 123 and 122. The upper and lower lid plate portions, and a supported plate portion connecting one end side of each of the lid plate portions to each other. The supported plate portion is integrally formed of a thin metal plate material. Is slidably supported along a guide groove 107 formed in one side of the cartridge 105 in the front-rear direction.

In FIG. 8 of the publication, a rotating member 1 is shown.
Numeral 0 is formed of a synthetic resin or the like, and is urged counterclockwise around the support hole 57. At its front end, a shutter closing claw 60 is directed toward the inside of the cartridge 105, and at its rear end, a rotary operation piece 61 facing the inside of the cartridge 105 is provided.
Are provided integrally. Next, the operation will be described.

First, when the cartridge 105 is inserted in the direction of arrow B in FIG.
0 denotes a shutter member 106 on the right side of the cartridge 105.
More distant. When the cartridge 105 is further inserted, the cartridge 105 comes into contact with the rotation operation piece 61, the rotation member 10 rotates in the direction of arrow D in FIG. Engage.
When the cartridge 105 is further inserted, the shutter opening claw 59 comes into contact with the front end of the supported plate portion of the shutter member 106 to prevent the shutter member 106 from moving. , 12
3 is released.

Next, when the cartridge 105 is removed from the apparatus, the movement of the shutter member 106 is prevented by the engagement between the shutter closing claw 60 and the closing operation hole 108, and as the cartridge 105 is removed from the apparatus, The openings 122 and 123 are closed. Further cartridge 1
05 are withdrawn from the device, the openings 122, 1
At the timing when the cover 23 is closed, the contact of the cartridge 105 with the rotating operation piece 61 is released, and the rotating member 10 is released.
Is rotated by the urging force and returned to the initial position.

When the rotating member 10 returns to the initial position, the engagement between the shutter closing claw 60 and the closing operation hole 108 is released, and the cartridge 105 can be removed from the apparatus. However, the conventional shutter opening / closing mechanism has the following problems. First, when the cartridge is inserted into the apparatus, the timing at which the rotating member rotates against the urging force due to the contact between the rotating operation piece and the cartridge, and the timing at which the shutter closing claw faces the closing operation hole When the former is faster than the latter, an excessive load is applied because the shutter closing claw abuts on the portion of the shutter member where there is no hole and the rotating member is still forcibly deformed. . Also, when the latter is earlier than the former, an excessive load is similarly applied to the forcibly deforming the rotating member due to the variation in the installation position of the shutter opening claw.

The same applies when the cartridge is removed from the apparatus. The timing when the contact between the rotating operation piece and the cartridge is released and the rotating member returns to the original position by the urging force, and the opening is completely closed. Comparing the timings, if the former is earlier than the latter, the cartridge will be ejected out of the device with the opening not closed, and if the latter is earlier than the former, the cartridge will not be able to be removed from the device. .

Further, it is not the linear portion on the side of the cartridge but the circular portion of the cartridge angle that controls the rotating operation of the rotating member in contact with the rotating operation piece. Is not determined in detail by the specification of the cartridge, and dimensional variation among manufacturers is sufficiently considered. That is, depending on the cartridge used, the possibility that the above-described problem occurs can be sufficiently considered.

Further, when the cartridge is inserted into the apparatus with the shutter slightly opened due to some erroneous operation by the operator, the shutter opening / closing mechanism having the above-mentioned structure causes an excessive load, and the insertion operation cannot be performed smoothly. there were. Therefore, the present invention is intended to solve the above-mentioned conventional problems, and can be realized at a low cost with a simple configuration, has high reliability, and has a shutter opening / closing mechanism that reliably operates even when operated erroneously. The purpose is to provide.

[0014]

In order to solve the above-mentioned problems, the present invention comprises a shutter closing member and a shutter opening member which are urged in one direction on a loading chassis so as to be rotatable. The shutter closing member and the urging means are provided with a rotation control unit for the shutter closing member. When the cartridge is mounted on the apparatus, first, the turning control unit on the urging means and the cartridge are provided. When the cartridge comes into contact with the rotation control unit on the closing member, the shutter closing member engages with the hole of the shutter member, and then the shutter opening member opens the shutter member. Since the configuration is simple and parts can be simple in shape, inexpensive materials can be used, high reliability, and a reliable shutter opening / closing mechanism that operates reliably even if it is operated erroneously. It is possible to provide the click system.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a disk drive for mounting a cartridge having a disk-shaped recording medium therein and having an opening which can be opened and closed by a shutter member. A shutter closing member movably provided, and a biasing means for biasing the shutter closing member in one direction, a second rotation control unit on the biasing means when the cartridge is mounted on the apparatus. Contacting the cartridge in the order of the first rotation control unit on the shutter closing member, the shutter closing member is rotated, and the shutter closing claw engages with the hole on the shutter member;
Furthermore, as the mounting of the cartridge proceeds, the opening is opened by the shutter opening member coming into contact with the shutter member, and the disk device is characterized in that it has such a configuration. Accordingly, it is possible to provide a disk device having a shutter opening / closing mechanism that guarantees reliable operation with a simple configuration.

Further, in the present invention, since a constricted portion is provided in a part of the shutter closing member, even if it is operated erroneously, the parts are not damaged. Further, due to the feature of the shape of the shutter closing claw, insertion of the cartridge with the shutter opened can be prevented. (Embodiment 1) Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a disk cartridge to be mounted on the disk device of the present invention. As shown in FIG. 1, a disk medium is rotatably housed in a cartridge 105. Here, the cartridge 105 is formed in a thin housing shape having a rectangular main surface portion whose one side length substantially corresponds to the diameter of the disk medium by joining the upper half and the lower half by butt coupling. As shown in FIG. 1, the cartridge 105 has a magnetic head opening 123 in the main surface on the upper surface side to allow a part of the signal recording surface of the disk medium to face outward. The opening 123 for the magnetic head is formed in a rectangular shape from substantially the center of the main surface of the upper half to the vicinity of one side edge of the main surface. The cartridge 105 has an opening 122 for an optical pickup at a position facing the opening 123 for the magnetic head on the main surface on the lower surface side. The cartridge 105 is inserted into the disk device from the front of the device as shown by an arrow B in FIG. Thereafter, the side with the insertion opening of the cartridge 105 with respect to the apparatus is the front,
The opposite side is called the rear.

In the cartridge 105, the magnetic head opening 123 and the optical pickup opening 122 can be opened and closed by a shutter member 106. The shutter member 106 includes upper and lower lid plate portions corresponding to the openings 123 and 122 and opposed to each other in parallel with each other, and a supported plate portion connecting one end side of each of the lid plate portions. And is integrally formed of a thin metal plate material or a resin material. The shutter member 106 connects the supported plate portion to the cartridge 1.
05 is slidably supported along a guide groove 107 formed in one side of the back and forth direction. The guide groove 107 is formed over the front end face in the insertion direction of the cartridge 105, and is open to the front end face.

The shutter member 106 is provided with a lid closing operation hole 108 at a substantially central position of the supported plate portion toward the side. The closing operation hole 108 is a through hole through which a shutter closing claw for performing a closing operation of the shutter member 106 in the disk device is fitted and engaged. In the cartridge 105, a lock member 125 is disposed, as shown in FIG.
The lock member 125 has a support shaft, a support arm and a lock arm protruding from the support shaft, and is integrally formed of a synthetic resin material. The lock member 125 is provided by fitting the support shaft portion into a fitting recess in the cartridge 105. The lock member 125 connects the support arm to the cartridge 105.
The lock arm is made to face the inside of the guide groove 107 from the inside in a state where the lock arm is brought into contact with a wall protruding inward to prevent the rotation around the support shaft. The lock arm is elastically urged outward by the elastic force of the lock member 125.

The lock arm engages with the shutter member 106 when the shutter member 106 is at the closed position to prevent the shutter member 106 from moving. When the lock arm is displaced inward against the elastic force of the lock member 125, the lock arm releases the engagement with the shutter member 106, and the shutter member 106 can move rearward. Becomes When the shutter member 106 returns to the closed position, the lock arm engages with the shutter member 106 by the urging force.

In FIG. 2, the cartridge 105 has a locking portion 126 on the left side surface, and can be inserted into the apparatus by engaging with the pull-in member during loading. FIG. 3 is a perspective view showing the main components at the ejection position of the cartridge 105, and FIGS. 4 to 6 are plan views showing the main components while the cartridge 105 is moving from the ejection position to the playing position. FIG. 3 is a plan view showing a configuration of a shutter closer and a shutter closer spring.

In FIG. 7, the shutter closer 1 is provided rotatably about a boss provided on a loading chassis (not shown), and as shown in FIG.
1 and a rotation control unit 13 are provided. Closer claw 1
1 has an inclined portion 12 at one end and a protective wall 16 at the other end. The shutter closer spring 2 is mounted around a boss serving as a rotation center of the shutter closer 1, one end of which is locked by a locking portion 101 provided on a loading chassis, and the other end of which is passed through a bent portion 21. It is locked in the long hole 14 and urges the shutter closer 1 counterclockwise,
Stopped by a stopper 102 on the loading chassis. Further, since the shutter closer spring 2 is also locked to the boss 15 on the shutter closer 1, if an external force is applied to the bent portion 21, the shutter closer spring 2 turns clockwise. In this case, the spring locking boss 15 and the shutter closer spring A clockwise urging force is obtained by the reaction force from the contact point 2. The shutter closer spring 2 is made of a wire spring, is inexpensive, has a high surface hardness and is resistant to abrasion, and has a low coefficient of friction. No surface coating treatment for improving lubricity is required.

The shutter opener 3 is fixed on a loading chassis so as to cover the shutter closer 1, and a first passive roller 5 is rotatably provided thereon. On the loading chassis, a second passive roller 4 is provided rotatably in front of the shutter closer 1. On the left side of the cartridge 105, a draw-in rack 7 is provided so as to be slidable in the front-rear direction on the loading chassis, and is driven by driving means (not shown). The retraction arm 6 is urged on the retraction rack 7 by an arm return spring 8 in a counterclockwise direction in FIG. A retraction claw 61 is provided at the end of the retraction arm 6, and engages with a locking portion 126 on the left side of the cartridge 105 to thereby allow the cartridge 10 to be engaged.
5 is reliably pulled into the apparatus.

Further, a cartridge pressing portion 62 is provided in the vicinity of the pull-in claw 61, and plays a role of urging the cartridge 105 to the right side of the apparatus, that is, to the shutter member side during loading. As shown in FIG. 3, a boss 63 is provided on the pull-in arm 6 and controlled by a cam groove 91 provided on a member on the loading chassis. In order to avoid complication of the member, only the cam groove 91 is shown, and its contour is not shown.

Next, the operation will be described. First, FIG.
In the discharge position of the cartridge 105, the retracting arm 6 is rotated clockwise against the urging force of the arm return spring 8 under the control of the cam groove 91, that is, the retracting claw 61 is retracted to the left outside of the cartridge 105. It is in a state. Further, the shutter closer 1 is urged in a counterclockwise direction, and the closer claw 11 is
5 is retracted to the right outside.

Here, when the cartridge 105 is inserted, the cartridge 105 is pressed against the front outer surface in the traveling direction of the cartridge 105 in FIG. The cartridge rotates in the counterclockwise direction, and the retraction claw 61 and the locking portion 126 of the cartridge 105 are engaged (see FIG. 5). At this time, a switch of a driving unit (not shown) is turned on, and in the subsequent operation, the driving unit drives the cartridge 105 to the rear of the apparatus via the pull-in claw 61.

At this time, since the retracting arm 6 is urged counterclockwise by the arm return spring 8, the cartridge 105 is urged rightward by the cartridge pressing portion 62. Is in contact with the second passive roller 4 and the second passive roller 4
Is rotated in conjunction with the movement of the cartridge 105, and the cartridge 105 is smoothly transferred to the rear of the apparatus. With such a configuration, the cartridge 105 is biased toward the apparatus with a bias, the passing position of the shutter member is stabilized, and the loading operation is reliably performed without the shutter opening / closing mechanism malfunctioning. Here, the boss 6 on the pull-in arm 6 is not in contact with either wall surface of the cam groove 91. At this time, the shutter opener 3
Is in a state of entering the guide groove 107 on the right side of the cartridge 105.

When the cartridge 105 is further transported to the rear of the apparatus, the shutter opener 3 comes into contact with the lock arm of the lock member 125 configured to face the inside of the guide groove 107 from the inside, and resists the urging force. The lock arm elastically deforms toward the inside of the cartridge 105, and the lock of the shutter member 106 is released. Next, shutter opener 3
Abuts against the supported plate portion of the shutter member 106, and the shutter member 106 is prevented from moving even if the cartridge 105 is further moved to the rear of the apparatus.
3 is released. FIG. 5 shows a start state of the opening operation of the openings 122 and 123.

When the cartridge 105 is further transported to the rear of the apparatus, the right side of the leading end of the cartridge 105 in the advancing direction starts to contact the bent portion 21 of the shutter closer spring 2, and the shutter closer 1 pushes the shutter closer spring 2. The shutter claw 11 of the shutter closer 1 starts to fit into the closing operation hole 108 on the shutter member 106. At this time, the shutter closer 1 is normally biased counterclockwise by the shutter closer spring 2 being locked in the spring locking hole 14 as shown in FIG. When the cartridge 105 comes into contact with the boss 21, the spring locking boss 1
At the contact point between the shutter closer 5 and the shutter closer spring 2, a clockwise moment as a reaction force from the shutter closer spring 2 is received, so that it rotates integrally with the bent portion 21.

At this time, if the shutter member 106
If the cartridge 105 in a state where is completely opened is to be mounted, the protective wall 16 on the front surface of the device of the closer claw 11 has a shape along the rotation trajectory of the shutter closer 1. As shown, the shutter member 1
06 and the protection wall 16 are stuck and cannot be mounted. Here, as can be seen from the position of the front panel in FIG. 10, the shutter member 106 and the protective wall 16 are caught after the cartridge 105 has completely entered the inside of the apparatus, and are destroyed by the forced insertion force of the operator. Can be prevented. It should be noted that, with the driving force of the driving means inside the apparatus, each member including the shutter closer has sufficient strength to prevent breakage.

If the timing at which the cartridge 105 contacts the bent portion 21 is earlier than the timing at which the shutter opener 3 contacts the supported plate portion of the shutter member 106, the closing operation hole 108 is closed. Closer claw 1 before moving to the position facing claw 11
1 contacts the shutter member 106 and still attempts to rotate the shutter closer 1 clockwise. In such a case, the variation can be absorbed by bending the shutter closer spring 2. And the cartridge 105
The fitting of the closer claw 11 into the lid closing operation hole 108 is surely completed before the contacts the rotation control unit 13.

Thereafter, the cartridge 105 is further transported to the rear of the apparatus, and the side of the cartridge 105 is brought into contact with the rotation control unit 13 so that the closer claw 11 is securely closed.
To the urging force of the cartridge pressing portion 62 from the left side of the cartridge 105 while securing the
It is guided by the first passive roller 5 and the second passive roller 4 on the right side, continues to enter smoothly without excessive load, and when the cartridge 105 reaches the playing position, the opening 122,
123 is completely opened. This is shown in FIG.

In the insertion operation, an erroneous operation causes
The state where the shutter member 106 is slightly opened, that is, the opening 1
When the cartridge 105 is inserted in a state where the cartridges 23 and 122 are open, the cartridge 105 comes into contact with the rotation control unit 13 while the closer claw 11 is not fitted in the closing operation hole 108. In such a case, since the constricted portion 17 is provided in the shutter closer 1 as shown in FIG. 7, the shutter closer 1 itself is elastically deformed as shown in FIG.

Next, the operation of taking out the cartridge 105 will be described. First, when the eject button is pressed, the drive means (not shown) starts transferring the draw-in rack 7 to the front of the apparatus, and the cartridge 105 is transferred from the playing position to the front of the apparatus via the draw-in arm 6. At this time, the closer claw 11 is in a state of being fitted into the cover closing operation hole 108, and the rotation control unit 13
Since the shutter 105 is engaged with the shutter 105, the shutter closer 11 cannot rotate, and even if the cartridge 105 is transported, the shutter member 106 is prevented from being transported.

Subsequently, when the cartridge 105 is transferred to the front of the apparatus, the contact between the rotation control unit 13 on the shutter closer 1 and the cartridge 105 is released. At this time, the bent portion 21 of the shutter closer spring 2 and the cartridge 1
05 is still in contact, the closer claw 11 remains fitted in the cover closing operation hole 108. Further, the cartridge 105 is transferred to the front of the apparatus, and the opening 123,
Around the time when the shutter 122 is completely closed, the contact between the shutter opener 3 and the lock member 125 is released,
The lock arm returns to its original position by its own elastic force, and the shutter member 106 is locked again.

Next, the contact between the bent portion 21 of the shutter closer spring 2 and the cartridge 105 is released, and the shutter closer 1 rotates counterclockwise according to the urging force.
The closer claw 11 retracts to the outside of the side surface of the cartridge 105. Here, the bent portion 21 and the cartridge 1
With respect to the release of the contact with the cartridge 105, the contact state between the inclined portion of the bent portion 21 and the circular corner of the cartridge 105 changes continuously with the movement of the cartridge 105. With the transfer to
The shutter closer 1 gradually rotates in the counterclockwise direction, and the closer pawl 11 moves from the fitting position into the closing operation hole 108 to the retreat position outside the cartridge 105.

Accordingly, when the openings 123 and 122 are completely closed, the degree of fitting of the closer claw 11 into the cover closing operation hole 108 depends on the dimensional variation of each member and the cartridge 10.
It depends on the difference in the shape of the pentagon. When the degree of insertion is small, the cartridge 105 is smoothly transferred to the front of the apparatus, and even when the degree of insertion is large, since the closer claw 11 is provided with the inclined portion 12, the cartridge 105 is transferred to the front of the apparatus. As a result, the shutter closer 1 rotates counterclockwise while bending the shutter closer spring 2, and the closer claw 11 is retracted from the closing operation hole 108.

Thereafter, the cartridge 105 is further transferred to the front of the apparatus by the pull-in arm 6, and when the cartridge 105 is transferred to the vicinity of the discharge position, the rotation of the pull-in arm 6 is controlled clockwise by the cam groove 91 via the boss 63. As a result, the engagement between the pull-in claw 61 and the locking portion 126 on the left side of the cartridge 105 is released, and the cartridge is pushed out further by the cartridge push-out portion 64 to the entire surface of the apparatus, so that it can be taken out of the apparatus. (Embodiment 2) Next, Embodiment 2 of the present invention will be described.

FIG. 8 is a plan view showing the structure of the shutter closer 1 and the shutter closer spring 2 in this embodiment. The difference from the first embodiment is that the
Are formed by bending the shutter closer spring 2 and the bent portion 21 as the second rotation control unit is not formed in the shutter closer spring 2.

The operation of this embodiment will be described below. The shutter opener 3 is a shutter member 106
Up to the point where the lock is released is the same as in the first embodiment. When the cartridge 105 is further transported to the rear of the apparatus, the right side of the leading end of the cartridge 105 in the traveling direction comes into contact with the rotation control unit 13 so that the shutter closer 1 rotates clockwise against the urging force of the shutter closer spring 2. The shutter claw 11 of the shutter closer 1 starts contacting the shutter member 106 and the cartridge 105
Closer to the rear of the device, the shutter closer 1
Is further rotated clockwise, and the shutter closer spring 2
Is elastically deformed, and when the closing operation hole 108 reaches a position facing the closer claw 11, the closer claw 11 is fitted into the closing operation hole 108.

Thereafter, the cartridge 105 is further transported to the rear of the apparatus, and the cartridge 1 is moved in the same manner as in the first embodiment.
05 and the second passive roller 4 on the right side against the urging force of the cartridge pressing portion 62 from the left side of the first passive roller 5.
When the cartridge 105 reaches the playing position, the openings 122 and 123 are completely opened.

In the insertion operation, an erroneous operation causes
The state where the shutter member 106 is slightly opened, that is, the opening 1
When the cartridge 105 is inserted in a state where the cartridges 23 and 122 are open, the cartridge 105 comes into contact with the rotation control unit 13 while the closer claw 11 is not fitted in the closing operation hole 108. In such a case, the shutter closer spring 2 is largely elastically deformed, and the parts are not damaged.

Next, the operation of taking out the cartridge 105 will be described. First, when the eject button is pressed, the cartridge 105 is transferred to the front of the apparatus, and the first embodiment is performed until the contact between the rotation control unit 13 on the shutter closer 1 and the cartridge 105 starts to be released.
Is the same as At this time, the closer claw 11 on the shutter closer spring 2 remains fitted in the cover closing operation hole 108, and the openings 123 and 122 are completely closed by further transferring the cartridge 105 to the front of the apparatus. In the state, the lid closing operation hole 108 is
At the same time, the shutter claw 11 is retracted from the closing operation hole 108 while bending the shutter closer spring 2 because the inclined portion 12 is provided on the closer claw 11.

Around the time when the openings 123 and 122 are completely closed, the contact between the shutter opener 3 and the lock member 125 is released, and the shutter member 106 is locked again. Thereafter, the cartridge 105 is further transported to the front of the apparatus by the retraction arm 6, and when the cartridge 105 is transported to near the discharge position, the retraction arm 6 is moved to the boss 63.
The engagement between the retracting claw 61 and the locking portion 126 on the left side of the cartridge 105 is released by the rotation of the cam groove 91 in the clockwise direction through the cam groove 91, and the cartridge pushing portion 64 further pushes the entire surface of the apparatus. Can be taken out of the apparatus.

As described above, in the present embodiment,
Since the closer claw 11 that fits into the closing operation hole 108 of the cartridge 105 is formed by a wire spring, it has excellent wear resistance and slidability. Even if it occurs, it can be resisted, and the performance can be secured without causing any damage to the closer nail.

[0046]

As described above, according to the disk device of the present invention, the shutter opening / closing mechanism of the disk cartridge can be realized at a low cost with a simple configuration, has high reliability, and operates reliably even if it is operated erroneously. It is possible to provide a disk device provided with a shutter opening / closing mechanism.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cartridge.

FIG. 2 is a plan view of a cartridge.

FIG. 3 is a perspective view showing main components of the present invention.

FIG. 4 is a plan view showing main components of the present invention at a cartridge discharge position.

FIG. 5 is a plan view showing main components of the present invention at a shutter opening / closing operation start position.

FIG. 6 is a plan view showing main components of the present invention in a cartridge playing position.

FIG. 7 is a plan view showing the configuration of a shutter closer unit according to one embodiment of the present invention.

FIG. 8 is a plan view showing a configuration of a shutter closer unit according to another embodiment of the present invention.

FIG. 9 is a plan view showing the deflection of the shutter closer of the present invention at the time of erroneous operation.

FIG. 10 is a plan view showing the function of the shutter closer of the present invention at the time of erroneous operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shutter closer 2 Shutter closer spring 3 Shutter opener 4 Second passive roller 5 First passive roller 6 Retract arm 7 Retract rack 8 Arm return spring 11 Closer claw 12 Inclined section 13 Rotation control section 15 Spring locking boss 21 Bending section 61 Pull-in claw 62 Cartridge holding section 63 Boss 64 Cartridge pushing section 105 Cartridge 106 Shutter member 107 Guide groove section 108 Lid closing operation hole 125 Lock member 126 Locking section

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kiyonari Saruwatari 1006 Kadoma, Kazuma, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. 5D046 BA12 CB13 CB16 CD01 FA01 FA04 FA08 HA08

Claims (6)

[Claims] 1. A disk device for storing a disk-shaped recording medium and mounting a cartridge having an opening which is opened and closed by a shutter member, comprising: a loading chassis; a shutter opening member; a shutter closing member; A biasing means for biasing the shutter closing member in one direction, wherein the shutter closing member is rotatably provided on the loading chassis and has a first rotation control section at one end thereof; The other end has a shutter closing claw, the urging means has a second rotation control unit at one end thereof, and the second rotation control unit and the second rotation control unit when the cartridge is mounted. When the cartridge is brought into contact with the cartridge in the order of the rotation control unit, the shutter closing member is rotated, the shutter closing claw is engaged with the hole on the shutter member, and the mounting of the cartridge further proceeds. According to the disk device, characterized in that said shutter lid opening member said opening is opened by contact with the shutter member. 2. The shutter closing member has a constricted portion near the first rotation control portion.
The disk device as described above. 3. The disk device according to claim 1, wherein the shutter closing claw has a substantially tangential contour with respect to the rotation locus of the shutter closing member on the front side of the device. 4. The disk drive according to claim 1, wherein the biasing means is engaged with a shutter closing member, and the second rotation control section has an elastically deformable beam structure. . 5. A disk drive according to claim 1, wherein said biasing means comprises a wire spring. 6. A disk drive according to claim 1, further comprising an urging means for urging the cartridge toward the shutter member while the cartridge is mounted on the apparatus.