JP3402422B2 - Recording medium drive - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium drive device in which a case containing a plurality of recording media such as disks or a case containing a single disk or a recording medium such as a magnetic tape is loaded in a loading section. In particular, the present invention relates to a recording medium drive device in which a case is securely held in a loading section and the resistance force of a discharging means can be reduced when the case is discharged from the loading section.

[0002]

2. Description of the Related Art FIG. 6 is a schematic diagram showing the structure of a vehicle-mounted disc selection type disc device as an example of a conventional recording medium drive device. This disk device is disclosed in
It is disclosed in Japanese Patent Publication No. 113552. This disk device has a so-called 1-din (DIN) size, and the housing 1 is installed by being embedded in an instrument panel inside a vehicle compartment. The loading unit 2 is the housing 1
It moves between the inside and the outside as shown by the arrow. FIG. 6 shows a state in which the loading unit 2 projects outside the housing 1. However, when the loading unit 2 is stopped inside the housing 1, the loading unit 2 is loaded from the right side in the drawing. The case C is inserted and loaded into the unit 2. Case C
A plurality of discs D, such as compact discs, are housed inside as recording media, and the left end of the case C in the drawing is the entrance Ca of the disc D.

A disk drive unit K is provided in the housing 1. The drive unit K includes a drive chassis 3, a turntable 4 provided on the drive chassis 3, a spindle motor (not shown) for driving the turntable 4, and a disk rotatably driven by the turntable 4. An optical head H for reading an optical signal recorded on the disk D is provided opposite to D. A base end portion of a clamp arm 5 is rotatably supported on the drive chassis 3, and a clamper 6 is rotatably supported on a tip portion of the clamp arm 5.

On the right side of the drive section K in the figure, a feed roller 7 and a counter roller 8 which constitute a disk transfer mechanism are provided. When the loading section 2 is moving inside the housing 1, the feed roller 7 moves downward and the facing roller 8 moves upward so that the movement of the loading section 2 is not hindered. When pulling out one of the discs D from the case C or returning the disc D into the case C, as shown in FIG. 6, the loading section 2 and the case C loaded therein are placed outside the housing 1. It projects to and temporarily stops at that position. At this time, the feed roller 7 and the counter roller 8 approach each other, and both rollers 7 and 8 are stopped at a position facing the disk D to be selected in the case C. The selected disc D (the one located in the middle of the three discs in the case C in FIG. 6) is extruded from the inside of the case C between the feed roller 7 and the opposing roller 8, and the disc D It is transferred to the left in the figure by the rotational force.

When the disc is selected, the clamp arm 5 is rotated upward as shown in FIG. 6, and the disc D transferred by the feed roller 7 moves between the drive chassis 3 and the clamp arm 5. Next, the clamp arm 5 rotates downward, the central portion of the disc D is pressed against the turntable 4 by the clamper 6, and the disc D is clamped on the turntable 4. Then, the loading section 2 and the case C move into the space above the descending clamp arm 5 and clamper 6, and the turntable 4 is rotationally driven in this state, and the optical signal is read by the optical head H. .

In addition, the disc D which has been reproduced is case C.
Also when returning it to the inside, as shown in FIG.
Of the disk D, the clamp arm 5 pivots upward and the clamp of the disk D is released. Then, the disc D is pushed up by the lower feed roller 7, the disc is nipped by the feed roller 7 and the counter roller 8, and the disc D is returned into the case C by the feed force of the feed roller 7.

[0007]

In the disc device shown in FIG. 6, the disc D is driven by the drive unit K and is loaded when the optical signal of the disc D is being reproduced or when the reproduction is stopped. The part 2 moves to the left in the drawing and is located inside the housing 1. When the case C is loaded in the loading section 2, the vibration of the vehicle body is transmitted to the loading section 2 and is further transmitted to the case C in the loading section 2.

Therefore, there is a problem that the disk D rattles in the case C to cause rattle noise, and the case C itself rattles in the loading section 2, which also causes rattle noise. Occur. The rattling of the disc D in the case C is caused by, for example, the case C.
It can be prevented by lightly pressing the disk D inside with a leaf spring. Since the disc D alone has a small mass, it is possible to effectively prevent rattling by lightly pressing it with a leaf spring. Further, since the elastic force of the leaf spring may be weak, the resistance when the disk D is taken out from the case C can be small.

On the other hand, since the mass of the case C as a whole is relatively large, in order to prevent the rattling of the case C in the loading section 2, a considerably strong elastic force is exerted in the loading section 2. It is necessary to provide elastic means such as a leaf spring and strongly press the case C in the loading section 2. However, if the case C is pressed by the strong elastic force in the loading section 2, the resistance when the case C is discharged from the loading section 2 becomes very large. Therefore, in the case where the case C is discharged by the power of the motor or the like, the load applied to the motor is large, and the load applied to each component of the discharge mechanism is large, so that problems such as wear are likely to occur. Further, when the case C is ejected by the spring force, the spring force for the ejection must be considerably increased, and therefore, the resistance force felt by the hand when the case C is loaded in the loading section 2 is increased. It becomes too large and causes a problem in operability.

The present invention has been made to solve the above-mentioned problems of the prior art. It is possible to prevent rattling of the case in the loading section, and also to reduce the resistance force when the case is discharged to reduce the load acting on the discharging means. It is an object of the present invention to provide a recording medium driving device capable of reducing the above.

[0011]

A recording medium driving device according to the present invention comprises a loading section in which a case containing a single recording medium or a plurality of recording media is loaded, and a driving section for driving the recording medium.
In a recording medium driving device provided with an ejecting unit for ejecting the case from the loading section, a pressing force is applied to the case loaded in the loading section, and the pressing force is removed or reduced when the case is ejected. It is characterized in that a pressurizing member that moves to a position to be provided is provided.

The recording medium is, for example, an optical disc such as a compact disc or a mini disc, and a case accommodating a plurality of the discs is loaded in the loading section, and any one of the disks is selected and driven by the drive section.
Alternatively, a device in which a package-type recording medium in which a single disc is housed in a case is independently loaded and driven may be used. Alternatively, the recording medium may be a magnetic tape or a magnetic disk, which is housed in a case in plural or singular. Further, the loading section may move between the inside and the outside of the housing as shown in the figure, or the loading section may be provided in a predetermined position inside the housing without moving. It may be That is, according to the present invention, as shown in the drawings, a disc selection type disc device in which the loading portion moves, a disc selection type disc device in which the loading portion does not move, or a mini disc (MD) in which a single disc is housed in a case, A floppy disk or the like may be individually loaded in the loading section, or a plurality of items stored in this case may be loaded.

In the above description, the discharging means has, for example, an extruding mechanism for extruding the case from the loading section and a driving member for operating the extruding mechanism. The pressurizing member is provided on the driving member, and the driving member is the extruding mechanism. Immediately before activating the case to push out the case, the pressing member along with the driving member may be moved to a position where the pressing force is removed or reduced.

The driving member is a lever that rotates or moves linearly, and the pressing member may be fixed to this lever or the like, or it may be integrally formed with the lever. Good.

The pushing mechanism can be constructed so as to push out the case by a spring force. Alternatively, it may be a mechanism for directly pushing out the case by the power of a motor or the like.

Further, the loading portion is provided with a spring member for elastically pressing the case, and the pressurizing member engages with the spring member to increase the elastic pressure by the spring member to apply a pressing force to the case. At the time of discharging, the pressurizing member is disengaged from the spring member, and the increase in elastic pressure is released.

Alternatively, the pressing member itself may directly hold the case, and when the case is discharged, the pressing member may move to a position where the holding is released.

Further, the loading section moves between the inside and the outside of the equipment body, and the case is ejected by the ejection means when the loading section is located inside the equipment body. It can be configured such that the pressing force is applied to the case by the pressing member when the inside of the device body moves.

According to the present invention, when the case is loaded in the loading section, it is prevented that the case is pressed by the pressure member directly or via the spring member, and the case causes rattling in the loading section. it can. Further, when the case is discharged by the discharging means or immediately before that, the pressurizing member moves to the position for removing the pressing force, so that the resistance when discharging the case is reduced and the load acting on the discharging means is reduced. it can. Particularly, in the case where the case is pushed out by the elastic force of the spring member in the discharging means, this elastic force can be reduced, and conversely the resistance force when the case is pushed into the loading section becomes small and the operability for loading is good. become.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a disk selection type disk device in which a loading part moves in and out of a housing as an example of a recording medium driving device of the present invention, and FIGS. FIG. 4 and FIG. 5 are side views showing the states, showing an example of the discharging means for discharging the case from the loading section.
It is a partial plan view of the arrow. As shown in FIG. 1, the disk device 10 is mounted on a vehicle. The housing 11 has a so-called 1-din (DIN) size, is embedded and installed in an instrument panel in a vehicle compartment, and the right side in the drawing is directed to the vehicle compartment.

The loading section 12 is movable, and moves between a state where it is located inside the housing 11 (FIG. 2) and a state where it projects to the outside (FIG. 3). As shown in FIG. 1, in the loading unit 12, a bottom plate 12a, a left side plate 12b, and a right side plate 12c are integrally formed by bending, and further, an upper end of the left side plate 12b is bent to form an upper left plate 12d on the right side. The upper end of the plate 12c is bent to integrally form an upper right plate 12e.

As shown in FIGS. 2 and 3, the loading section 12 is
The case C to be loaded in is made of a synthetic resin material, and three disks D (for example, optical disks such as compact disks) are stored therein as recording media. The case C has an opening at the left end in the drawing to serve as an entrance / exit Ca of the disk D. In this disc device 10, as shown in FIG.
1 is located inside the case 1, the case C is
Is inserted in the direction (a) and loaded. When the loading section 12 is located inside the case 11, the case C is ejected from the inside of the loading section 12 by the ejecting means described later.

As shown in FIG. 1, at the front end of the loading portion 12 on the protruding side, a spring member 13a of a leaf spring exhibiting a light elastic force is provided on the upper left plate 12d, and a spring member 13b is similarly provided on the upper right plate 12e. Has been. In addition, a support portion 12f is integrally formed in a substantially central portion of the upper left plate 12d, and the support portion 12f is also provided with a spring member 14 of a leaf spring. As shown in FIG. 2, when the case C is loaded in the (a) direction with the loading section 12 located in the housing 11, the bottom, both sides and the ceiling of the case C are respectively loaded by the loading section. 12 bottom plates 12a, both side plates 12b and 12c, and an upper left plate 12d
And is guided to the upper right board 12e. Then, in the loading portion 12, the case C is pressed downward by the spring members 13a and 13b and the spring member 14 and pressed against the bottom plate 12a.

A disc cam 21 is provided on the inner surface of the ceiling plate 11a of the housing 11 so as to be rotatable about a shaft 22, and the disc cam 21 is predetermined by a motor (not shown). It is supposed to rotate at the timing of. Although not shown, a pull-in lever driven by the disc cam 21 in a predetermined locus is provided, and the loading force of the pull-in lever causes the loading section 12 to move in the direction (a) to move the inside of the housing 11 into place. To the outside of the housing 11 by moving in the (b) direction.

As shown in FIG. 1, the ceiling plate 11 of the housing 11
A drive member (drive lever) 24 is rotatably supported by a support shaft 23 on the inner surface of a. A follower pin 25 is provided at the base of the drive member 24, and the disc cam 2
The follower pin 25 is constrained by the cam groove 21a formed in 1. The drive member 24 is driven by this cam groove.
The drive member 24 is normally stopped at the position shown in FIG. 1 when the loading section 12 is located inside the housing 11. In addition, after the loading unit 12 moves in the (B) direction and projects to the outside of the housing 11 and stops, the driving member 24
Moves in the direction to select the disk D in the case C. Further, when the case C in the loading section 12 is ejected in the (b) direction in the state where the loading section 12 is located in the housing 11, the drive member 24 rotates in the direction, which will be described later. The discharging means is driven.

The drive member 24 is press-molded so that a part thereof is bulged downward in the drawing, and this bulged portion serves as a pressing member 26. That is, in the illustrated example, the pressing member 26 is formed integrally with the driving member 24. The pressing member 26 may be formed separately from the driving member 24, and the pressing member 26 may be fixed to the driving member 24.

On the other hand, the spring member 14 supported at the substantially central portion of the upper left plate 12d of the loading section 12 is
Is bent and deformed so as to extend in the direction of the bottom plate 12a, and its lower end serves as an elastic pressure portion 14a. A portion ahead of the elastic pressure portion 14a is bent toward the ceiling plate 11a of the housing 11 to form a restraining portion 14b.

When the spring member 14 is in the free state, the elastic force by which the spring member 14 presses the case C toward the bottom plate 12a is small. Further, the spring members 13a and 13b provided at the other two places are also set so as to exert a light elastic force. Therefore, the spring member 14 and the spring members 13a and 13b in the free state move the case C to the bottom plate 12a.
The force to repress in the direction of is weak.

However, as shown in FIG. 2, when the driving member 24 is stopped in the state of and the loading portion 12 is stopped by entering the housing 11, the spring member 1 is stopped.
The pressing member 26 is located just above the restraining portion 14b of No. 4, and the restraining portion 14b at the tip of the spring member 14 is pressed by this pressing member 26. Therefore, the spring member 14
In the leaf spring, the base end is supported by the support portion 12f, and the restraint portion 14b at the tip is restrained by the pressure member 26 to be in a both-end supported state. Pressurize. That is, the elastic force of the spring member 14 is increased by the pressing member 26, and the loading unit 1
In case 2, the case C is held with a strong force. Therefore, even if body vibration or the like is transmitted to the housing 11 and the loading unit 12,
The case C is less likely to rattle in the loading section 12, and rattle noise due to rattling does not occur.

Case C in the loading section 12 in the state shown in FIG.
When is discharged, the drive member 24 moves in the direction. At this time, the pressure member 26 also moves in the direction, and the pressure member 26 reaches a position where it is disengaged from the restraining portion 14b of the spring member 14. Therefore, the force of the spring member 14 to press the case main body C is weakened, and the spring force of the other spring members 13a and 13b is also weak, so that the case C is held with a light force in the loading portion 12, The resistance force when the case C is discharged becomes small by the discharging means described later.

On the inner surface of the side plate 11b of the housing 11, a selection member 31 and a discharge driving member 32 are respectively (a)-(b).
It is slidably supported in the direction. Both the selection member 31 and the discharge driving member 32 are provided on the side plate 11b of the housing 11.
And the left side plate 12b of the loading unit 12 are located.
A connection hole 31a formed at the upper end of the selection member 31,
The connecting hole 24a formed at the tip of the driving member 24 is connected by a connecting pin (not shown).
When 4 rotates in the direction, the selection member 31 moves in the (b) direction, and when the driving member 24 rotates in the direction, the selection member 31 moves in the (a) direction.

On the outside of the side plate 11b of the housing 11, auxiliary side plates 33 are installed with a space therebetween. This auxiliary side plate 33
A reversing member 35 is rotatably supported on the inner surface of the shaft by a shaft 34. A receiving portion 35a is formed at the upper end of the reversing member 35, and a drive shaft 36 fixed to the selecting member 31 is opposed to the receiving portion 35a so that it can abut against the receiving portion 35a. A shaft 35b is integrally formed at the lower end of the reversing member 35, and the shaft 35b is inserted into the connection hole 32a of the discharge driving member 32. When the drive member 24 rotates in the direction from the position and the selection member 31 moves in the (a) direction, the drive shaft 36 fixed to the selection member 31 pushes the receiving portion 35a in the (a) direction. As a result, the reversing member 35 rotates in the direction, and the discharge drive member 32 is driven in the (b) direction by the shaft 35b provided on the reversing member 35.

As shown in FIGS. 4 and 5, a lock / push mechanism 40 is provided on the lower surface of the bottom plate 12a of the loading section 12. In the illustrated example, the drive member 24, the reversing member 35,
The ejection drive member 32 and the lock / push-out mechanism 40 constitute ejection means. With the lock / push mechanism 40,
On the lower surface of the bottom plate 12a of the loading section 12, the pushing member 42 is attached to the shaft 4
The push member 42 is rotatably supported by 1.
The extruding pin 43 provided at the tip of the bottom plate 12a is provided above the bottom plate 12a from the notch 12a1 formed in the bottom plate 12a.
2 inward). An extrusion biasing member or an extrusion spring member 44 is hooked between the base end of the extrusion member 42 and the bottom plate 12a, and the extrusion spring member 44 biases the extrusion member 42 in the direction.

A lock member 45 is supported on the lower surface of the bottom plate 12a of the loading section 12 so as to be linearly slidable in the direction. The lock pin 46 fixed to the tip of the lock member 45 is a bottom plate. Notch 12a2 formed in 12a
From above to above the bottom plate 12a (inward of the loading portion 12). A lock urging member or a lock spring member 47 is hung between the lock member 45 and the bottom plate 12a, and the elastic force of the lock spring member 47 urges the lock member 45 in the direction. An operating member 49 is rotatably supported by a shaft 48 on the lower surface of the bottom plate 12a. The connecting portion 49a of the operating member 49 is connected to the connecting recess 45a of the lock member 45, and the pressure receiving portion 49b of the operating member 49 is connected.
Are oriented laterally on the lower surface of the bottom plate 12a. A drive piece 32b is bent on the discharge drive member 32, and the drive piece 32b is opposed to a position where the pressed portion 49b can be pressed.

In the state of FIG. 4, when the case C is loaded in the loading section 12, the contact portion C1 formed at the edge of the concave step Cb formed on the lower surface of the case C hits the push pin 43. When the case C is pushed in as it is, the contact portion C1
The push member 42 is pushed by and rotates in the opposite direction. As a result, the abutment (c) between the pushing member 42 and the lock member 45 is released, the lock member 45 is moved in the direction by the lock spring member 47, and the lock pin 46 is moved to the lock recess C2 at the bottom of the case C. Then, the case C is locked in the loading section 12 by fitting into

The drive member 24 shown in FIG. 1 rotates in the direction, and this rotational force is transmitted from the selection member 31 to the ejection drive member 32 via the reversing member 35, and the ejection drive member 32 moves in the (b) direction. Then, the pressure-applied portion 49b is pushed by the driving piece 32b formed on the discharge driving member 32, and
In this state, the operating member 49 rotates counterclockwise. Therefore, the lock member 45 connected to the actuating member 49 moves in the opposite direction, the lock pin 46 disengages from the lock recess C2, and the case C is unlocked. At this time, the pushing member 42 is rotated in the direction by the elastic force of the pushing spring member 44, the abutting portion C1 is pushed by the pushing pin 43, and the case C is pushed out from the inside of the loading portion 12 in the (b) direction and discharged. To be done.
After that, the pushing member 42 and the lock member 45 are in a state of being abutted by the abutting portion (C).

As described above, immediately before the case C is ejected by the push pin 43, the pressing member 26 together with the driving member 24 is discharged.
Is rotated in the direction, the pressing member 26 is separated from the spring member 14, and the increase in the elastic force of the spring member 14 is released. Therefore, when the case C is pushed out by the push pin 43, the pressing force of the spring C on the case C becomes weak, and the resistance force acting on the push member 42 is not small. Therefore, even if the elastic force of the pushing spring member 44 is not excessive, the elastic force of the pushing spring member 44 causes the case C
Can be reliably pushed out. In addition, the pushing spring member 44
Since the elastic force of is not excessive, when the case C is loaded in the loading section 12, the resistance force given from the push pin 43 is not too large, and the case C can be loaded with a light force.

As shown in FIGS. 2 and 3, a drive unit K is provided in the housing 11. In the drive unit K, the drive chassis 51 is supported via the damper 52. The drive chassis 51 supports a turntable 53 and a spindle motor 54 that rotationally drives the turntable 53. A clamp arm 55 is rotatably supported on the drive chassis 51, and a clamper 56 is rotatably supported on the lower end of the front end of the clamp arm 55.

A feed roller 61 is provided in the lower portion of the housing 11 on the (b) side. The feed roller 61 is rotatably supported by a support bracket 62, and the support bracket 62 is rotatably supported by a shaft 63 provided in the housing 11. The support bracket 62 is urged clockwise by an elastic member (not shown), and the power of a feed motor (not shown) is transmitted to the feed roller 61 via a gear train, and the feed roller 61 is rotationally driven.
An opposing roller 64 is provided on the (a) side of the loading section 12. The opposing roller 64 is provided with a support bracket 65.
The support bracket 65 is rotatably supported between the side plates of the loading section 12 by a support shaft 66. The roller shaft 67 of the opposed roller 64 extends laterally and is inserted into the stepped selection groove 31b formed in the selection member 31 shown in FIG.

The operation of the disk device 10 will be described.
As shown in FIG. 2, when the loading unit 12 is inside the housing 11, the loading unit 12 is located above the clamp arm 55 and the clamper 56 and is stopped. At this time, the facing roller 64 supported by the loading section 12 is
Although it is moving in the direction (a) together with 2, the opposing roller 64
The roller shaft 67 is located in the extension 31c of the selection groove 31b formed in the selection member 31 shown in FIG.
The facing roller 64 is lifted upward in the drawing.
Further, the feed roller 61 supported on the housing 11 side is lowered together with the support bracket 62.

As shown in FIG. 2, the loading section 12 is a housing 11
When it is located inside, the restraining portion 14b at the tip of the spring member 14 provided in the loading portion 12 abuts the pressing member 26, and the leaf spring of the spring member 14 is formed by the supporting portion 12f and the pressing member 26 at both ends. It is supported. At this time, the loading unit 12
When the case C is inserted in the direction (a), the spring member 1
Due to the weak elastic force of the case C due to 3a and 13b, the bottom plate 12a
In addition, the case C is pressed by the elastic member 14a of the spring member 14 which is supported at both ends as described above.
It is pressed by the increased elastic force in the direction of 2a. Therefore, the case C is firmly held in the loading section 12 without rattling.

When the case C is loaded in the loading section 12, the push pin 43 in the state shown in FIG. 4 hits the contact portion C1 on the bottom surface of the case C, and the push pin 43 is pushed in the opposite direction. Therefore, the pushing member 42 separates from the lock member 45 at the abutting portion (c), and the lock member 45 moves in the direction by the biasing force of the pushing spring member 47. Therefore, as shown in FIG. 5, the lock pin 46 is fitted into the lock recess C2 at the bottom of the case C, and the case C is locked in the loading section 12. When the case C is discharged from the loading section 12 located in the housing 11, the disc cam 21 shown in FIG. 1 is rotated by the motor, and the cam groove of the disc cam 21 causes the drive member 24 to move in the direction. Be driven to. Therefore, the pressing member 26 provided on the driving member 24 is separated from the spring member 14, and the elastic force of the spring member 14 pressing the case C is reduced.

When the drive member 24 rotates in the direction, the selection member 31 connected to the tip of the drive member 24 moves in the direction (a), and the drive shaft 36 provided in the selection member 31 causes the reversing member 35 to move in the direction. The shaft 35 of the reversing member 35 is rotated.
The discharge driving member 32 is moved in the (b) direction by b. As shown in FIG. 5, the lock / push mechanism 40 has a case C.
When the discharge driving member 32 moves in the (b) direction while the lock is locked, the driving piece 3 of the discharge driving member 32 is
The actuating member 49 is pushed counterclockwise by 2b. Therefore, the lock member 45 is moved in the opposite direction, the lock pin 46 comes out of the lock recess C2, and the lock of the case C is released. Then, the elastic force of the pushing spring member 44 causes the pushing member 42 to rotate in the direction, and the pushing pin 43 pushes the case C in the (B) direction.

At this time, since the pressing member 26 is separated from the spring member 14, the spring member 14 becomes a cantilevered leaf spring to reduce the elastic force on the case C, and therefore the pushing pin 43 is pushed. The case C that receives the output projects in the (B) direction without being given a large resistance force. When any of the discs is played back, the disc cam 2 shown in FIG.
By the rotational force of 1, the loading unit 12 is moved in the (B) direction, and the loading unit 12 stops at the position protruding from the housing 11 as shown in FIG. In the state of FIG. 3, the feed roller 61
The support bracket 62 that supports the roller rotates clockwise, and the feed roller 61 is elastically pressed by the opposing roller 64 by the spring force.

When a disc is selected, the rotation of the disc cam 21 shown in FIG. 1 is controlled, the drive member 24 is rotated in the direction, and the selection member 31 is moved in the (b) direction. Since the roller shaft 67 of the opposing roller 64 is in the selection groove 31b of the selection member 31, when the movement distance of the selection member 31 in the (b) direction is controlled, the roller shaft 67 is rolled to any step of the selection groove 31b. The shaft 67 moves, the position of the facing roller 64 is determined accordingly, and the position of the feed roller 61 pressed against this is also determined. By this selection operation, the feed roller 61 and the counter roller 64 are stopped at a position for selecting one of the disks D in the case C. After that, the selected disc D is pushed out from the case C, is sandwiched by both rollers 61 and 64, and the disc D is pulled out from the case C into the drive mechanism K by the rotational force of the feed roller 61.

Thereafter, the clamp arm 55 descends and the disc D is clamped by being clamped by the turntable 53 and the clamper 56. Then, the loading portion 12 is pulled in the (a) direction by the rotation of the disc cam 21, and the loading portion 12
As shown in FIG. 2, the clamp arm 55 and the clamper 56 are
Move to the space above and stop. In this state, the spindle motor 54 rotates the turntable 53 and the disk D, and the optical head performs a reproducing operation.

As described above, according to the present invention, when the case C is housed in the loading portion 12 located in the housing 11, the spring member 14 hits the pressing member 26 to increase the elastic force. Therefore, the case C is firmly held in the loading section 12, and the case C does not rattle in the loading section 12 due to vehicle body vibration. Further, when the case C is discharged, the pressing member 26 moves together with the driving member 24 and comes off the spring member 14, so that the elastic force of the spring member 14 is reduced. Therefore, the resistance force when the case C is discharged is reduced. Therefore, even if the elastic force of the pushing spring member 44 is relatively weak, the case C can be reliably discharged.

The pressing member 26 is not limited to the one provided on the driving member 24 constituting the discharging means, but may be provided so as to be moved by another member. However, by providing the pressure member 26 on the driving member 24 of the discharging means as shown in the drawing, it becomes easy to set the time timing between when the case pressure by the pressure member is reduced and when the case is discharged.

Alternatively, the case C may be directly pressed by the pressing member 26, and the case C may be firmly held in the loading portion 12 without the interposition of the spring member. Further, a spring other than a leaf spring may be used as the spring member 14, and the elastic force of this spring may be increased by the pressing member. Further, even if the loading section 12 is installed so as not to move inside the housing 11, the same effects as those in the example of the drawing can be obtained.

[0050]

As described above, according to the present invention, since the case containing the recording medium is firmly held in the loading section, the case does not rattle in the loading section. Further, when the case is discharged, the pressure applied to the case is reduced or removed, so that the resistance force given to the discharging means for discharging the case becomes small.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a disk selection type disk device as an example of a recording medium driving device of the present invention;

2 is a side view showing a state in which a loading section is located inside a housing in the disc device shown in FIG. 1;

FIG. 3 is a side view showing a state where the loading portion projects outside the housing in the disc device shown in FIG. 1;

FIG. 4 is a plan view of the lock / push-out mechanism provided in the loading section as seen from the arrow IV in FIG. 2,

FIG. 5 is a plan view showing a state in which the case is locked in the loading section in the lock / push mechanism.

FIG. 6 is a side view of a conventional disc selection type disc device;

[Explanation of symbols]

C case D disk K drive 10 disk device 11 housing 12 Loading section 14 Spring member 14b Restraint 21 disk cam 24 Drive member 26 Pressure member 31 Selection member 32 Discharge drive member 32b drive piece 35 Inversion member 40 Lock / Extrusion mechanism 42 Extruded member 43 Extrusion pin 44 Extrusion spring member 45 Lock member 46 Lock Pin 49 Working member 51 drive chassis 53 turntable 55 Clamp arm 56 clamper

Claims (5)

(57) [Claims] 1. A recording medium provided with a loading section for loading a case containing a single recording medium or a plurality of recording media, a driving section for driving the recording medium, and a discharging means for discharging the case from the loading section. The drive device is provided with a pressurizing member that applies a pressing force to the case loaded in the loading section and moves to a position where the pressing force is removed or reduced when the case is discharged. Recording medium drive device. 2. The discharging means has an extruding mechanism for extruding the case from the loading section, and a drive member for operating the extruding mechanism, the pressurizing member is provided on the drive member, and the driving member operates the extruding mechanism. The recording medium driving device according to claim 1, wherein the pressing member moves to a position where the pressing force is removed or reduced together with the driving member immediately before the case is pushed out. 3. The recording medium driving device according to claim 2, wherein the pushing mechanism pushes the case by a spring force. 4. A spring member for elastically pressing the case is provided in the loading portion, and the pressurizing member engages with the spring member to increase the elastic pressure by the spring member to apply a pressing force to the case. 4. The recording medium driving device according to claim 1, wherein the pressure member is disengaged from the spring member to release the increase of the elastic force at the time of discharging. 5. The loading section moves between the inside and the outside of the equipment body, and the case is ejected by the ejection means when the loading section is located inside the equipment body. 5. The recording medium drive device according to claim 1, wherein the pressing force is applied to the case by the pressing member when the sheet moves inside the device body.