JPH08315481A - Disk recording and reproducing device - Google Patents

Abstract

PURPOSE: To move a disk cartridge without being affected by dirt on the surface of the cartridge and its surface working state by holding the disk cartridge with a holding member forming a clamper and driving it with a roller and a gear. CONSTITUTION: When the cartridge is inserted into a cartridge holder 1, it is held by the clamper 10. The cartridge is drawn in by further pushing it and driving a transfer roller 7c via the clamper 10. In this case, a driving surface is allowed to slip, and even when force other than driving force is given by the user, an excess load upon the clamper 10 is reduced. When the loading is further progressed, a transfer gear 7e is started and the cartridge is driven to surely further move the disk. Consequently, the disk can surely be moved into the recording and reproducing device without being affected by dust and soil on the cartridge surface, and hence the disk cartridge can be selected by preference as to its external appearance, price and performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an MD (Mini Disk) or an MO stored in a cartridge as a recording medium.
The present invention relates to a disc recording / reproducing device using (Magneto Optical) or the like.

[0002]

2. Description of the Related Art Conventionally, as a recording medium of a disk recording / reproducing apparatus, for example, a compact disk (hereinafter, referred to as a CD
Called) is used. However, since the recording surface (hereinafter referred to as the disk surface) of the CD is exposed, C
When D is attached to or detached from the disc recording / reproducing apparatus, scratches, dust, or the like may occur. For this reason, in recent years, in consideration of disk surface protection and portability, a disk as a recording medium is housed in a cartridge and is miniaturized, for example, a mini disk (hereinafter referred to as MD), 3.5. Inch magneto-optical disks (hereinafter referred to as MO) have been developed.

A method as shown in FIG. 29 is a method for attaching / detaching the cartridge containing the above-mentioned disc to / from the disc recording / reproducing apparatus.

In the above disk recording / reproducing apparatus, roller members 51, 52 are provided above and below a cartridge holder 50 which guides and holds the cartridge 53, and the roller members 51, 52 which come into contact with the cartridge 53 and move into the disk recording / reproducing apparatus are illustrated. The roller members 51 and 52 are configured to press the cartridge 53 by a spring mechanism that is not provided.

The operation of the disc recording / reproducing apparatus described above will now be described.

As shown in FIG. 1A, the cartridge 5
3 is inserted into the cartridge holder 50 in the L1 direction. Then, when the leading end of the cartridge 53 in the insertion direction is inserted to a position where the cartridge 53 comes into contact with the roller members 51, 52 arranged vertically, as shown in FIG. And the roller member 52 in the direction of the arrow Q1 are inserted all the way into the cartridge holder 50 and completely housed in the cartridge holder 50 as shown in FIG. The cartridge 53 is ejected by the rotation of the roller member 51 in the arrow P2 direction and the rotation of the roller member 52 in the arrow Q2 direction.

At this time, the roller member 51 used above
At 52, the frictional force with the surface of the cartridge 53 allows the cartridge 53 to be inserted into and ejected from the disc recording / reproducing apparatus.

Further, as shown in FIG. 30, a cartridge 53 is provided by a roller member 61 provided only on one side surface.
The side surface of the roller member 61 is directly pressed in the direction of the arrow M1.
Is rotated in the direction of arrow U1-U2 by a drive source (not shown) to insert and eject the cartridge 53 in the direction of arrow V1-V2. The applicant of the present application has already proposed a disk recording / reproducing apparatus in which the thickness of the entire apparatus is reduced by bringing the roller portion into contact with the side surface and driving the cartridge 53.

Further, in the above, the roller member 51
By using a pin roller having a large number of convex pins on the surface of the roller portion as 52 and the roller member 61, the pins that come into contact with the cartridge 53 are made to bite into the fine irregularities on the surface of the cartridge 53 and the cartridge 5
It is also conceivable that the drive of No. 3 is performed.

[0010]

However, as in the above-mentioned conventional disk recording / reproducing apparatus, in the structure in which the cartridge is moved by insertion or ejection by the frictional force of the roller directly pressed on the cartridge, the surface of the cartridge is The frictional force largely depends on the state of. In other words, the above-mentioned cartridge has a feature that the recording medium is not easily scratched even if it is roughly handled, and thus the cartridge is left as it is for a long time, and dust is attached to it. I will end up. When a cartridge dirty with dust or oil is inserted into the disc recording / reproducing device as it is, dust or oil adheres to the surface of the roller member, so that the friction coefficient between the roller member and the cartridge surface is reduced. As a result, it becomes impossible to generate sufficient frictional force to insert or eject the cartridge.

On the other hand, when the roller member 61 is provided on one side surface as in the conventional example shown in FIG. 30, the driven force of the cartridge 53 in the directions of arrows U1 and U2 is in the direction of arrow M1 of the roller member 61. The larger the pressing force is, the larger the pressing force in the direction of the arrow M1 is, and the larger the pressing force of the cartridge 53 is in the direction of the arrow M1 as well. A frictional force generated in proportion to the pressing force causes a force that opposes the driven force. Moreover, when the cartridge 53 is inserted as shown in the figure, the cartridge 53 has
A pickup reading window for exposing the internal disk, a shutter for opening and closing the pickup reading window, and the like are provided. These irregularities may hinder the smooth insertion of the cartridge 53. There is also a problem that it is difficult to add a configuration for reducing the frictional force.

Further, when the cartridge is moved by the pin roller as described above, there is almost no possibility that the driving force is lowered due to the dirt such as dust or oil and fat as described above, but the property of the surface itself of the cartridge. Will be greatly affected by. This is because the shape of the cartridge is standardized according to the standard, so each manufacturer has to change the color, surface treatment, material, etc. in order to differentiate from other companies.For example, priority is given to disk protection. Then, when the cartridge is formed of metal or high hardness material, the pin on the surface of the pin roller does not get caught in the cartridge, so that the driving force of the pin roller cannot be sufficiently transmitted to the cartridge side. If the surface hardness of the cartridge is too low, the surface of the cartridge may be largely scraped after long-term use.

Furthermore, if the speed at which the operator pushes in or pulls out the cartridge at the beginning of insertion of the cartridge and immediately before the end of ejection is different from the speed of the insertion and ejection of the cartridge of the disk recording / reproducing apparatus itself, the pin The roller may cause noise and scratch the surface of the cartridge, which significantly deteriorates the commercial property.

On the other hand, in the case of the roller member using the above-mentioned frictional force, even if the speed for pushing in or pulling out the cartridge is different from the speed for inserting and ejecting the disc recording / reproducing apparatus as described above, It is possible to absorb this speed difference due to the slip between the roller member and the cartridge, and the problems of noise and scratches as described above do not occur, but in the long term, it results from the reduction of the friction coefficient as described above. It has a problem of insufficient driving force.

[0015]

In order to solve the above-mentioned problems, a disk recording / reproducing apparatus of the present invention according to claim 1
A disk recording / reproducing apparatus provided with guide means for guiding the disk cartridge to a recording / reproducing position and medium moving means for converting the rotational motion into a linear motion to move the disk cartridge to the recording / reproducing position. Is provided with a roller member, a drive force transmission member that rotates about a rotation axis and presses the roller member toward the disc cartridge, and a drive member that rotates the roller member, and holds the disc cartridge. It is characterized in that the roller driving surface formed on the holding member is pressed against the roller member to move the disk cartridge.

A disc recording / reproducing apparatus according to a second aspect of the present invention is the disc recording / reproducing apparatus according to the first aspect,
A gear member is provided coaxially with the rotation axis of the roller member, while a holding member is provided with a gear driving unit driven by the gear member in parallel with the roller driving surface, thus forming a gear driving unit. In the region, the holding member is moved by the gear member.

[0017]

According to the structure of claim 1, the roller member does not directly contact the disk cartridge to move the disk cartridge, but contacts the roller driving surface provided on the holding member to move the holding member. By doing so, the disc cartridge held by the holding member is moved.

Therefore, the surface of the roller member and the roller driving surface can be maintained because the surface condition of the roller member is kept constant without the dust, oil and grease on the surface of the disk cartridge adhering to the roller member. The friction coefficient between the two does not change easily, and reliable operation such as insertion and ejection of the disk cartridge can be maintained for a long period of time without increasing the pressing force of the roller member on the roller driving surface more than necessary.

Further, for the above reason, this operation is not affected by the surface processing state and material of the disc cartridge, and if the disc cartridge has a standard shape, the inserting and ejecting operations are surely performed. The user can select any disc cartridge according to his / her preference such as appearance (color and feel of the surface), price, performance, and the like.

According to the structure of claim 2, in addition to the effect of claim 1, in the region where the holding member for moving the disk cartridge is driven by the gear drive portion, the cartridge can be moved more reliably. In the area driven by the roller driving surface, slip between the roller member and the roller driving surface can absorb the difference between the driving speed of the disk cartridge by the disk recording / reproducing apparatus and the actual speed of the disk cartridge.

Therefore, as a result, in an area where an external force other than the driving force of the disk recording / reproducing apparatus may be applied to the disk cartridge, for example, in the state where the disk cartridge is projected from the housing of the disk recording / reproducing apparatus. Since the user may try to push in or pull out the disc cartridge, if only the roller drive surface is provided in this area, the force between the roller member and the roller drive surface will be excessive due to slippage between the roller member and the drive member. It is possible to prevent the member from being loaded.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
The explanation is based on the following. First, an optical disc as a recording medium used in the disc recording / reproducing apparatus of this embodiment will be described below with reference to FIGS. 27 and 28.

The above-mentioned optical disk is, for example, an MD for recording / reproducing information or reproducing only, and is shown in FIG.
A disc body 42, which is a so-called magneto-optical disc capable of recording and reproducing, is housed in a cartridge 41 having a substantially rectangular parallelepiped plate shape, and a disc body 46 capable of reproducing only shown in FIG. 28 has a substantially rectangular parallelepiped cartridge 45. There is something to store.

In the case of a magneto-optical disk, it is sufficient to irradiate the light beam only at the time of reproduction, but at the time of recording, it is necessary to form the magnetic field at the information recording portion together with the irradiation of the light beam.
As shown in FIGS. 27B and 27D, the cartridge 41 has a window 41a for picking up a light beam,
A magnetic head window 41c is provided.

At a position where the pickup window 41a and the magnetic head window 41c are provided, a shutter 43 which is slidable in the directions of arrows M1-M2 is provided. When the cartridge 41 is not inserted in the disc recording / reproducing apparatus, the shutter 43 is engaged with the tip end portion 44a of the shutter lock lever 44 provided in the cartridge 41 and the locking portion 43c provided at one end side of the shutter 43. The cartridge 41 is fixed by fitting, and the pickup window 41a and the magnetic head window 41c of the cartridge 41 are closed.

Then, when the cartridge 41 is inserted into the disc recording / reproducing apparatus, the shutter 43 is released from the engagement state at the engaging portion 43c, slides in the direction of the arrow M1, and the surface of the disc body 42 moves. It is exposed. Further, when the cartridge 41 is ejected, a shutter spring (not shown) is inserted into the insertion hole 43a of the shutter 43, and the shutter 43 slides in the direction of the arrow M2, so that the leading end portion 44a and the locking portion 4 again.
3c are engaged with each other to close the pickup window 41a and the magnetic head window 41c.

As shown in FIGS. 27A, 27C and 27D, a groove 41b is formed at the sliding position of the shutter 43 of the cartridge 41, and the cartridge 41 is inserted into the cartridge holder 1. A blade 1c (FIG. 1), which will be described later, is fitted into the groove portion 41b in accordance with this operation, so that the blade 1c presses the shutter lock lever 44 to release the shutter 43 from the locked state, and the shutter 43 is released. It is designed to be released. Further, the pickup window 41 of the cartridge 41
Recesses 41d and 41e are formed on the surface on which a is provided so as to hold the cartridge 41 when it moves.

In the above, as described above, FIG.
The cartridge 45 containing the read-only disk body 46 shown in (d) to (d) can be used, but since the structure of this disk medium is read-only, the magnetic field for the magnetic head used only at the time of recording is used. The operation is almost the same as that of the cartridge 41 except that the head window is not formed, and the description thereof is omitted. As the disc body 46, in addition to the magneto-optical disc similar to the disc body 42, an optical disc or the like which reads information by the presence or absence of reflected light such as a generally known CD (compact disc) is used. There is.

The recording / reproducing cartridge 41 described above.
The configuration of the disc recording / reproducing apparatus according to the present invention will be described below with reference to FIG. The main part of the disc recording / reproducing apparatus is provided with a loading mechanism, a pickup feeding mechanism, and a recording head.

First, the structure of the loading mechanism will be described with reference to FIGS.

As shown in FIG. 1, a shutter spring plate 1a is formed by caulking on the side surface of the cartridge holder 1 which holds the cartridge 41 when the cartridge 41 (not shown) is inserted, and is engaged with the groove 41b of the cartridge 41. The blade 1c is provided so as to match. A holder arm 2 is fitted into the drive plate 3 from above the cartridge holder 1, and the holder arm 2 is rotatably supported by the drive plate 3 in the direction of arrow A1-A2 in FIG.

Further, the holder arm 2 is provided with a holder arm spring 2b connected to the drive plate 3, and the holder arm 2 is biased in the rotating direction of arrow A1 in FIG. As shown in FIG. 1, a cam receiver 2a provided on the holder arm 2
Contact the cam portion 4c formed on the side surface of the cam plate 4, and the holder arm 2 is lifted in the direction of arrow A2 in FIG. Due to the force, it pivots and descends along the cam portion 4c in the direction of arrow A1 in FIG. As a result, the cartridge holder 1 is pressed in the direction of arrow B in FIG. 2, and the cartridge 41 is pressure-bonded and fixed to a predetermined position of the disk recording / reproducing apparatus. Further, while supporting the cartridge 41 from the side, the cartridge holder 1 of the cartridge 41
A clamper 10 for assisting insertion into and discharge from the roller is mounted slidably in the directions of arrows S1-S2 by rotation of the transfer roller 7c and the transfer gear 7e.

As shown in FIG. 3, the cam plate 4 is provided with the cam portions 4c and 4d and the cam portion 4b shown in FIG.
The rack gear 5 is slidably attached via a.

Then, as shown in FIG. 5, the rack gear 5 is urged against the cam plate 4 in the arrow F direction by a rack spring 5a mounted between the cam plate 4 and the rack gear 5. . The cam plate 4 is slidably incorporated in the drive plate 3 and slides by the operation of the loading gear 6.

As shown in FIG. 6, the transfer roller 7c for pressing the clamper 10 is a roller shaft 7
The roller arm 7 is rotatably incorporated into the roller arm 7 by d, is rotatably supported by the drive plate 3, and is urged by the roller spring 7g in the direction of arrow E2 shown in FIG. There is.

As shown in FIG. 8, a roller holder 7b is press-fitted inside both the transfer roller 7c and the transfer gear 7e, and a predetermined play is provided between the roller holder 7b and the roller gear 7a. On the other hand, the transfer roller 7c and the transfer gear 7e are provided on the roller gear 7a by the roller holder spring 7f in the D2 direction (see FIG. 6).
When one of them rotates for a certain amount of play,
The roller gear 7a and the roller holder 7b rotate together.

A cam portion 7i provided on the roller arm 7
Rotates the roller arm 7 when the cartridge 41 is inserted and the clamper 10 moves, thereby turning on a start switch (not shown). Further, the cam receiver 7h provided on the roller arm 7 is provided on the cam plate 4
It contacts the cam portion 4b of FIG. 4 (FIG. 4) to control the rotation of the roller arm 7.

Further, as shown in FIG. 9, the clamper 10 for moving the cartridge 41 is incorporated on the side surface of the cartridge holder 1 as described above.

As shown in FIG. 10, the clamper 10 is
It includes a clamper main body 26, a catch 27 incorporated so as to rotate around the fulcrum shaft 26c with respect to the clamper main body 26, and a clamper spring 28.

The clamper main body 26 includes a clamper gear 2
6h and a roller driving surface 26b are formed and are respectively driven by the transfer roller 7c and the transfer gear 7e. In addition, the catch 27 is formed with a convex portion 27e that fits into the concave portion 41d of the cartridge 41. And in the assembled state, FIG.
As shown in (a), the catch 27 causes the clamp 27 to move the arrow T to the main body 26 of the clamper.
While being biased in one direction, the tip end portion 27a of the catch 27 is brought into contact with the stopper portion 26a of the clamper body 26 to be locked.

When the convex portion 27e is pressed in this state, the catch 27 turns in the direction of arrow T2 as shown by the alternate long and short dash line against the biasing force of the clamper spring 28, as shown in FIG. Will move.

FIG. 12 shows the maximum movable range of the clamper 10 with respect to the cartridge holder 1. Before the cartridge 41 is inserted, the clamper 10 has an arrow S2.
Although it is at the position shown by the dotted line in the direction, when the cartridge 41 is completely inserted, it moves to the position shown by the solid line in the direction of arrow S1.

Next, the structure of the pickup feed mechanism will be described below with reference to FIGS. 13 and 14. As shown in FIG. 13, the MD guides 8 and 16 are provided on the drive plate 3.
Is built in. The MD guide 8 is provided with a rotatably mounted drive screw 9, pickup pickup shaft 11 and drive screw spring 12, and the MD guide 16 has a pickup guide shaft 17 and a disc cartridge discriminating function. An erroneous erasure prevention switch 18 (FIG. 14) is provided.

Then, in FIG. 13, the rotation of the motor is reduced by the drive screw gear 13 press-fitted into the drive screw 9 and the pickup motor gear 14 press-fitted into the motor.
Is transmitted to the pickup 15, and the pickup 15 is moved in parallel in the direction indicated by the arrow I by a leaf spring (not shown) provided in the pickup 15 and the pickup guide shafts 11 and 17.

The MD guides 8 and 16 and the cartridge guide 24 serve to position the cartridge 41 when the cartridge 41 is mounted.

The structure of the recording head mechanism will be described below with reference to FIGS. 15 and 16. As shown in FIG. 15, the shift arm 19 rotatably attached to the drive plate 3 includes a shift arm spring 19
A head arm 21 having a head 22 at its tip is rotatably attached to the head bracket 20 provided on the pickup 15 as well as a. The shift arm 19 is biased in the arrow J2 direction by the shift arm spring 19a, while the head arm 21 is biased in the arrow K1 direction by the head spring 20a, as shown in FIG. As shown, the shift arm 19 and the head arm 21 are linked by a connecting rod 19b, and the urging directions of them are opposite to each other.

However, since the tension of the shift arm spring 19a is set to be larger than the tension of the head spring 20a, normally the shift arm 19 is
The head arm 21 is rotated in the direction of arrow K2, and the head 22 provided at the tip of the head arm 21 is lifted. When the head 22 is pressure-bonded, the movement of the cam portion 4d causes the shift arm 19 to rotate in the J1 direction in the figure. As a result, as shown in FIG. Rotate in the direction of arrow K1,
The head 22 is pressed onto the disk body 42.

The operation of the disc recording / reproducing apparatus will be described based on the above configuration. (1) Loading operation start When the cartridge 41 is inserted into the cartridge holder 1 from the standby state shown in FIG. 2, the state shown in FIGS. 17 and 18 is obtained. At this time, the corner 41f of the cartridge 41 comes into contact with the convex portion 27e provided on the catch 27 of the clamper 10. At the same time, the clamper body 26
The leading end of the roller driving surface 26b in the insertion direction contacts the transfer roller 7c. This roller drive surface 26
A step is provided at the tip of the insertion direction b. When the cartridge 41 is further inserted from this state, the cartridge 41 tries to move the entire clamper 10 in the arrow S1 direction, and at the same time, the clamper 10 tries to push up the transfer roller 7c. However, as described above, the catch 27 of the clamper 10 is rotatable in the arrow T2 direction.

Moreover, since the spring force of the roller spring 7g for pressing the transfer roller 7c is stronger than the spring force of the clamper spring 28 (not shown), the catch 27 is first attached to the fulcrum shaft 2 as shown in FIG.
6c is rotated in the direction of arrow T2 about the cartridge 41
Can be further inserted. Then, as shown in FIGS. 19 and 20, the catch 2 is inserted into the recess 41 d of the cartridge 41.
The convex portion 27e of 7 enters and the cartridge 41 is held by the clamper 10.

Further, when the cartridge 41 is pushed in, as shown in FIGS. 21 and 22, the cartridge 41 abuts on the engaging portion 26g of the clamper 10 at the corner 41f, so that the roller spring 7g is pushed along with the pushing operation of the cartridge 41. The transfer roller 7c rotates against the spring force, and the clamper 10 moves in the direction of arrow S.
Start moving in one direction. Here, the state shown in FIG. 23 (a) is reached, but at this time, since play is provided between the roller gear 7a and the transfer roller 7c, when the cartridge 41 is further pressed, Figure 2
As shown in 3 (b), the roller holder spring 7
The transfer roller 7c rotates in the direction of arrow D1 in the figure against the spring force of f, and at the same time, the transfer roller 7c receives a force in the direction of arrow E1 by the clamper 10 interlocked with the cartridge 41, and the transfer roller 7c receives The roller arm 7 slightly rotates in the E1 direction against the spring force. Further, at this time, as can be seen from FIG. 22, the side wall 1k of the cartridge holder 1 prevents the convex portion 27e of the catch 27 from rotating about the fulcrum shaft 26c in the direction of the arrow T2. The holding of the cartridge 41 is reliable.

As a result, the transfer roller 7c is provided on the side of the clamper 10 which is interlocked with the cartridge 41.
Are brought into contact with each other, and the cartridge 41 can be loaded. At this time, when inserting the cartridge 41, it is sufficient to apply a force slightly larger than the sum of the insertion resistances generated by the roller holder spring 7f and the roller spring 7g.
It becomes possible to push in 1.

Then, the start switch (not shown) is pressed by the rotation of the roller arm 7, the motor (not shown) is started, and the driving force of the motor is transmitted to the roller gear 7a through the loading gear 6,
The transfer roller 7c is driven, and the clamper 10
The retraction of the cartridge 41 is started via (FIG. 23 (b)).

If the play is not provided when the cartridge 41 is ready to be loaded, the roller gear 7a and the loading gear 6 are always in mesh with each other, and the insertion resistance generated when the cartridge 41 is inserted is 41 and transfer roller 7
The frictional force with c or the frictional force serves to rotate the transfer roller 7c so as to rotate the motor connected through the loading gear 6 or the like, so that the insertion resistance when play is provided. However, the loading mechanism and the cartridge 41 are forced to have an excessive force.

(2) Retracting of the cartridge 41 From the above-mentioned loadable state, the transfer roller 7c is driven to retract the cartridge 41 into the cartridge holder 1.

However, at this time, the transfer gear 7
e and the clamper gear 26h do not mesh with each other, and the moving force of the clamper 10 depends only on the frictional force between the transfer roller 7c and the roller driving surface 26b.
The cartridge 41 can be pulled in without generating a force greater than a predetermined pulling force.

That is, in FIG. 21, the cartridge 4
1 at the beginning of loading, that is, cabinet 29
Even when the user holds the cartridge 41 in a state where the cartridge 41 is protruding from the cartridge 41 and causes the cartridge 41 to be taken in and out at a speed faster or slower than the carrying speed of the cartridge by the loading mechanism, when the transfer roller 7c drives the cartridge 41, Since slip is allowed between the transfer roller 7c and the roller driving surface 26b, the above speed difference can be absorbed.

Further, when the loading progresses and the cartridge 41 is completely inserted into the cabinet 29 as shown in FIGS. 24 and 25, the transfer gear 7e meshes with the clamper gear 26h, and the horizontal loading is completed. It is possible to reliably transmit a stable driving force.

At the time when the drive by the transfer gear 7e is started, as can be seen from FIG. 24, since the cartridge 41 is completely hidden in the cabinet 29, the cartridge 41 is pulled out by an external force from the other, Since there is no danger of being pushed in, it is not necessary to allow slipping, and even if the transfer gear 7e is driven, an unillustrated drive motor or the like will not be overloaded.

At this time, the blade 1c provided on the cartridge holder 1 slides in the groove portion 41b in a fitted state,
When the shutter lock lever 44 is released, the shutter 41 comes into contact with the end of the shutter 43, and the cartridge 41 is completely pulled into the cartridge holder 1. At the same time, the shutter 43 is fully opened.

(3) Completion of pulling in of the cartridge 41 Then, as shown in FIG. 6, the slide lever 5b provided on the rack gear 5 is pushed in the direction of the arrow H in the figure by the pulled-in cartridge 41 to load the cartridge. The gear 6 and the rack gear 5 start to mesh with each other,
The sliding operation of the cam plate 4 starts.

(4) Separation of the transfer roller 7c and pressure-bonding operation of the cartridge 41 As shown in FIG. 26, when the cam plate 4 starts sliding in the direction of arrow C in the figure, the cam portion 4b formed on the cam plate 4 causes the cam plate 4 to move. , The cam receiver 7h is lifted along the cam surface to rotate the roller arm 7 in the direction of arrow E1 in FIG. 1, so that the transfer roller 7c and the transfer gear 7e are connected to the roller driving surface 26b of the clamper 10.
Release the pressure of.

On the other hand, the holder arm 2 which has been lifted by the cam portion 4c of the cam plate 4 at the same time when the pressing of the clamper 10 is released as described above, has the cam portion 4c.
As it descends along the direction, the cartridge holder 1 presses the cartridge 41 in the direction of arrow B in FIG. 2, and the cartridge 41 is held in the disc recording / reproducing apparatus.

(5) Reproduction (loading completed) state After the above operation is completed, when the cam plate 4 slides by a predetermined amount, the end switch (not shown) is pressed by the bent portion 4e on the side surface of the cam plate 4 shown in FIG. The motor (not shown) stops and the loading operation ends.

(6) Recording state (recording mode change) By external input, a motor (not shown) is started in the same direction as the loading operation, and the cam plate 4 is slid further upward in the reproduction state.

The cam 4d formed on the side surface of the cam plate 4 causes the shift arm 19 to move the arrow J1 shown in FIG.
The head 22 is pressed against the disk body 42 as described above.

Further, when the cam plate 4 slides by a predetermined amount and the side switch 4f of the cam plate 4 presses an end switch (not shown), the motor (not shown) stops and the operation of changing to the recording mode ends. .

(7) Unloading operation By externally inputting, a motor (not shown) is rotated in a direction opposite to that at the time of loading, and the operations of the above-mentioned (1) to (6) are sequentially performed in reverse, whereby the cartridge is carried out. 41
Can be discharged.

At this time, as shown in FIG. 23 (c), the loading gear 6 rotates in the direction of arrow G2 and drives the roller gear 7a in the direction of pressing it toward the clamper 10. Therefore, even in the drive area of the clamper 10 by the transfer roller 7c, the above pressing force is applied in addition to the pressure force by the roller spring 7g, so that the pressing force may be insufficient only by the roller spring 7g due to abrasion of the transfer roller 7c. Even if such a case occurs, the clamper 10 is reliably moved in the direction of ejecting the cartridge 41, and the cartridge 41 is reliably ejected. Then, when the cartridge 41 is ejected, the roller arm 7 enters a standby state, a start switch (not shown) is cut off, the motor stops, and the state returns to the state of FIG.

As described above, in the disc recording / reproducing apparatus of this embodiment, when the cartridge is protruding from the cabinet 29 of the disc recording / reproducing apparatus, the movement of the clamper 10 causes the transfer roller 7 to move.
Since it is done by c, if the user wants to take out the cartridge quickly in the above state, or mistakenly inserted another cartridge, etc., pull the cartridge or push it in for quick playback. Even if the cartridge is moved at a speed different from the speed at which the disk recording / reproducing apparatus itself tries to move the cartridge, the clamper 10 is still driven by the transfer roller 7c at this time. In the slip-permitted state, the load on the drive motor and the clamper 10 does not become larger than necessary, and the cartridge can be inserted and ejected. In the state where the cartridge is completely buried in the cabinet 29, there is no fear that the above-mentioned excessive force is applied,
Secure clamper 10 using clamper gear 26h
Have been moved. Further, as described above, since the clamper 10 is interposed, the cartridge can be moved regardless of the state of the surface of the cartridge, and it has necessary characteristics at each time when the cartridge is moved. A moving method can also be applied.

[0070]

As described above, the disk recording / reproducing apparatus according to the first aspect of the present invention records the disk cartridge by converting the guide means for guiding the disk cartridge to the recording / reproducing position and the rotary motion into the linear motion. In a disk recording / reproducing apparatus provided with a medium moving means for moving to a reproducing position, the medium moving means rotates a roller member around a rotation shaft to press the roller member toward the disk cartridge. A driving force transmission member and a driving member for rotating the roller member are provided, and the roller member is pressed against a roller driving surface formed on a holding member for holding the disk cartridge to move the disk cartridge. It is a composition.

Therefore, as a result, the cartridge can be reliably moved into the disc recording / reproducing apparatus without being affected by the condition of the surface of the cartridge, for example, surface processing, dirt due to dust, oil and grease. Play.

A disk recording / reproducing apparatus according to a second aspect of the present invention is the disk recording / reproducing apparatus according to the first aspect, wherein a gear member is provided coaxially with the rotation axis of the roller member, while the holding member has the gear member. A gear driving unit driven by the gear driving unit is provided in parallel with the roller driving surface, and the holding member is moved by the gear member in the region where the gear driving unit is formed.

Therefore, by this, the holding member, that is, the disk cartridge is surely moved in the area where the gear drive portion is formed, while the slip is caused as described above in the area where the gear drive portion is not formed. Since it is allowed, even if a force other than the driving force by the disc recording / reproducing apparatus is applied to the disc cartridge, the load on the driving member and the holding member is reduced, so that the durability of the driving system can be improved. Has the effect.

[Brief description of drawings]

FIG. 1 is an assembly exploded perspective view showing details of a cartridge holding mechanism of a disk recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the disc recording / reproducing apparatus shown in FIG.

FIG. 3 is an exploded perspective view of an assembly component of a cam plate and a rack gear provided in the disc recording / reproducing device.

FIG. 4 is a partial perspective view of the cam plate seen from the direction of arrow N in FIG.

5 is an exploded perspective view showing an assembled state of the assembly part of FIG. 3 to a drive plate.

FIG. 6 is an exploded perspective view showing an assembled state of the roller arm to the drive plate.

FIG. 7 is a schematic view of a roller arm attachment portion as viewed in the direction of arrow O in FIG.

FIG. 8 is an exploded perspective view of a roller holder and a roller gear.

FIG. 9 is a view showing a mounting state of a clamper.

FIG. 10 is an assembled perspective view of a clamper.

11A and 11B show the operation of a single clamper, FIG. 11A is a view showing a movable part of the clamper as seen from the bottom surface, and FIG. 11B is a view showing the movable part of the clamper as seen from the top surface. It is a figure.

FIG. 12 is a diagram showing a movable region and a movable direction of a clamper.

FIG. 13 is a schematic perspective view illustrating a pickup feeding mechanism provided in the disc recording / reproducing device.

FIG. 14 is a perspective view illustrating the operation of the shift arm due to the operation of the cam plate.

FIG. 15 is a schematic perspective view illustrating a recording head mechanism provided in the disc recording / reproducing device.

16 is a schematic side view of a recording head mechanism, FIG. 16A is a diagram showing a state of a head arm with a head lifted (during reproduction), and FIG. State of head arm crimped to disk (during recording)
FIG.

FIG. 17 is a side view for explaining the operation of the disc recording / reproducing apparatus when the disc cartridge is inserted, showing a stage in which the disc cartridge is inserted.

FIG. 18 is a top view with a partial cross section taken along line XX of FIG. 17.

FIG. 19 is a side view showing a state following FIG. 17, in which the clamper holds the disc cartridge.

20 is a top view with a part taken along the line YY of FIG. 19. FIG.

FIG. 21 is a side view showing a state where the disc cartridge comes into contact with the clamper and the clamper and the disc cartridge start moving at the same time.

22 is a top view with a partial ZZ arrow cross section of FIG. 21. FIG.

FIG. 23 is a schematic diagram for explaining a loading / unloading mechanism, FIG. 23 (a) is a diagram showing a cartridge insertion, and FIG. 23 (b) is a diagram showing an operation at the time of cartridge loading. FIG. 11C is a diagram showing the operation at the time of unloading the cartridge.

FIG. 24 is a side view showing a state when the transfer gear starts to drive the gear drive section of the clamper.

25 is a top view with a partial WW arrow cross section of FIG. 24; FIG.

FIG. 26 is a perspective view of the disc recording / reproducing apparatus as seen from below.

27A and 27B show a recordable / reproducible disc applied to the disc recording / reproducing apparatus of the present invention, wherein FIG. 27A is a side view, FIG. 27B is a plan view, and FIG. The figure and the same figure (d) are bottom views.

28A and 28B show a reproducible disc applied to the disc recording / reproducing apparatus of the present invention, wherein FIG. 28A is a side view, FIG. 28B is a plan view, and FIG. The same figure (d) is a bottom view.

FIG. 29 is a schematic view of a conventional example in which rollers are arranged above and below a cartridge holder. FIG. 29 (a) is before cartridge insertion, FIG. 29 (b) is during cartridge movement, and FIG. Is a diagram in which the mark is moved to the recording / reproducing position.

FIG. 30 is a diagram showing a conventional example of a disk recording / reproducing apparatus in which a roller is arranged on one side surface of a cartridge.

[Explanation of symbols]

1 Cartridge Holder (Cartridge Guide Member) 6 Loading Gear (Driving Member) 7 Roller Arm (Driving Force Transmission Member) 7c Transfer Roller (Roller Member) 7a Roller Gear (Driving Member) 7d Roller Shaft (Rotating Shaft) 7e Transfer Gear ( Gear member) 10 Clamper (holding member) 26h Clamper gear (gear drive part) 26b Roller drive surface 41 Cartridge (disk cartridge) 45 Cartridge (disk cartridge)

Front page continuation (72) Inventor Kimihiko Suezawa 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation

Claims (2)

[Claims] 1. A disc recording / reproducing apparatus provided with guide means for guiding a disc cartridge to a recording / reproducing position, and medium moving means for converting rotational movement into linear movement to move the disc cartridge to the recording / reproducing position. The medium moving means is provided with a roller member, a driving force transmitting member that rotates about a rotating shaft to press the roller member toward the disk cartridge, and a driving member that rotates the roller member. A disc recording / reproducing apparatus, characterized in that the roller member is pressed against a roller driving surface formed on a holding member for holding the disc cartridge to move the disc cartridge. 2. A gear member is provided coaxially with the rotation axis of the roller member, while a holding member is provided with a gear driving unit driven by the gear member in parallel with the roller driving surface. 2. The disc recording / reproducing apparatus according to claim 1, wherein the holding member is moved by a gear member in a region where the is formed.