JPH07111809B2 - Disk player cartridge ejector - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disc player in which a cartridge accommodating a disc is mounted, and in particular, it is possible to reliably eject the cartridge after a reproducing operation or the like is completed. The present invention relates to a cartridge eject device.

[Conventional technology]

In recent car audio systems and the like, a disc reproducing device equipped with a disc changer has been put into practical use.

In this type of disc changer, for example, a disc cartridge C as shown in FIG. 10 is used, and a plurality of discs are stored in the disc cartridge C.
When the disc cartridge C is mounted, the disc is searched by the disc transfer mechanism, a predetermined disc is pulled out and carried to the disc playing portion, and a reproducing operation is performed by the disc reproducing unit provided in the disc playing portion. .

In this type of disc changer, when replacing the disc cartridge C, it is necessary to eject the cartridge C from the cartridge mounting portion of the disc changer. For this reason, a disc ejecting device is provided, but in this type of conventional device, a lever for urging the disc cartridge in the ejecting direction is provided, and the disc is opposed to the urging force of the spring or the like acting on the lever. When the cartridge is inserted and brought into the proper position, the cartridge itself or the lever is generally locked. Next, when the cartridge is discharged for replacement of the cartridge C or the like, the lock is released by the operation of the solenoid during the eject operation. As a result, the lever is pushed out toward the disc insertion opening by the force of the spring, and the disc cartridge is ejected by the lever.

[Problems to be Solved by the Invention]

In the above-mentioned conventional technique, the lever is biased by the spring, and the force is utilized to eject the disc cartridge. However, the disc cartridge loaded in the disc changer has a large weight because it stores a plurality of CDs (compact discs) or the like inside. Therefore, in order to reliably discharge this, the spring force urging the lever must be set to be fairly strong. Therefore, conversely, when the disc cartridge is inserted, the biasing force of the spring becomes a resisting force, and a large force is required when the disc cartridge is inserted, which is very difficult to handle. At present, this type of disc changer is generally installed so that the cartridge insertion direction is almost horizontal in the trunk of an automobile, etc., but in the future, this type of disc changer will be used to insert the cartridge in the cabin. It is expected that the installation will be almost vertical. In this case, since the ejection direction of the cartridge is right above, if the above-mentioned conventional cartridge ejecting device is used, the force of the spring for urging the cartridge in the ejection direction must be increased. Therefore, in this case, the resistance force when inserting the cartridge is further increased.

The present invention is to solve the above-mentioned problems, and the resistance force at the time of inserting the cartridge is made as weak as possible. Moreover, in the ejecting operation of the cartridge, the cartridge is surely pushed out to the end by the power of the motor, etc. It is an object of the present invention to provide a cartridge eject device for a disc player that enables ejection.

[Means for Solving the Problems]

A cartridge ejecting device for a disc player according to the present invention includes a cartridge mounting portion into which a cartridge accommodating a disc is introduced, a lock member that engages with the cartridge introduced into the cartridge mounting portion, and the lock member engages with the cartridge. A biasing member that biases the lock member in the lock release direction against the biasing force of the biasing member, and a cartridge that is unlocked by the lock member in the discharge direction. It has a second member having a pressing portion for pressing, and an eject lever that rotates by receiving a driving force when the cartridge is ejected, and the eject lever locks the first member at the time of the rotation. The first pressing engagement portion that presses in the releasing direction, and the second portion that is located farther from the rotation fulcrum than the first pressing engagement portion. The is characterized in that a second pressing engagement portion is provided for pressing the cartridge ejection direction.

[Action]

In the above means, when the cartridge accommodating the disk is introduced into the cartridge mounting portion, the lock member is engaged with the cartridge by the urging force of the urging member, and the cartridge is locked. When the cartridge is ejected from the cartridge mounting portion, the first pressing engagement portion near the rotation fulcrum of the eject lever presses the first member, and the lock member is driven in the unlocking direction by the first member. Further, the second member is driven by the second pressing engagement portion located at a position far from the rotation fulcrum of the eject lever, and the cartridge is pushed out by the pressing portion of the second member and ejected. That is, when unlocking the cartridge, the first pressing engagement portion moves the first member by a short distance to reliably drive the first member having a large load in the unlocking direction. After the lock is released, the second pressing engagement portion reliably moves the second member for a long distance so that the cartridge can be reliably pushed to the final position in the ejection direction.

〔Example〕

 Examples of the present invention will be described below.

FIG. 1 is an external perspective view showing the entire structure of a disc changer and a disc player integrated therewith, FIG. 2 is a perspective view showing a cartridge mounting portion and a disc playing portion therein, and FIG. FIG. 4 is an exploded perspective view showing a cartridge ejecting device provided on the side, and FIG. 4 is a perspective view showing a lifting operation unit (disk transfer mechanism).

This apparatus is composed of a cartridge mounting portion indicated by reference numeral D and a disc playing portion indicated by E. As shown in FIG. 1, a disc cartridge C accommodating a plurality of discs (compact discs in the illustrated embodiment) is inserted into the cartridge mounting portion D from the front. A cartridge table 30 is installed below the disc mounting portion D. The cartridge table 30 is fixed to the bottom plate 34, and the disc cartridge C is mounted while being guided by the cartridge table 30. A pressure roller 31 is provided on a ceiling plate 32 of the apparatus body. The pressing rollers 31 are biased by leaf springs 33, respectively, and the loaded cartridge C is pushed against the cartridge table 30 by the biasing force of the leaf springs 33.

As shown in FIG. 2, a disc drive unit 40 is arranged in the disc playing portion E adjacent to the cartridge mounting portion D. The disk drive unit 40 is the bottom plate 34
It is fixed side by side with the disk table 30 on the surface. The disk drive unit 40 is provided with a turntable 41, an optical pickup 42, and a clamper support member 43. This disk drive unit 40
Is disposed at the lowest portion in the entire apparatus shown in FIG. 1, and the disc DS pulled out from the disc cartridge C by the lifting / lowering operation unit 60, which will be described later, is carried to the lowest portion and the center of the disc is the turntable. It is installed on 41 and clamped by a clamper. Then, the disc is rotated together with the turntable 41 by the force of the motor, and the performance is performed by the optical pickup which moves along the guide shaft 44.

As shown in FIG. 1, in the embodiment shown in the figure, the disc mounting portion D, the disc playing portion E, etc.
2. The unit Y is surrounded by the bottom plate 34 and the left and right side plates 35a, 35b connecting the ceiling plate 32 and the bottom plate 34. And the ceiling plate 32, the bottom plate 34, and the side plates 35a, 35b
The unit Y surrounded by is supported by a housing provided outside these.

That is, the casing is composed of the bottom casing 36 and the side casings 37a and 37b fixed thereto. The unit Y is levitationally supported on the housing by a plurality of floating dampers 38a, 38b, 38c. The floating damper is a rubber bag whose inside is filled with air or liquid. FIG. 1 assumes that the bottom plate 34 and the bottom casing 36 are arranged in a horizontal posture, and the side plates 35a and 35b are made to move to the side casings 37a and 37b by the hanging spring 39 arranged vertically. It is hung from.
The disc changer can also be installed so that the cartridge insertion direction is from directly above, that is, the horizontal direction of FIG. 1 is the vertical direction. In this case, the suspension spring 39 is reengaged, and the unit Y is suspended in the gravity direction. Of the plurality of floating dampers, the one indicated by the reference numeral 38c is oriented to support the unit Y at an angle of 45 degrees, but when the cartridge is installed in the direction in which the cartridge insertion direction is vertical as described above. In this case, the floating damper 38c arranged at 45 degrees supports the unit Y and effectively exhibits the damper effect.

As shown in FIG. 3, on the cartridge table 30 provided in the cartridge mounting portion D, guide pieces 30a and 30b are formed by bending at both left and right edges thereof. Further, three guide pins 1 are provided on the upper surface thereof. The cartridge C has a shape as shown in FIGS. 10 and 11 (an exploded perspective view which is shown upside down). When the cartridge C is mounted in the cartridge mounting portion D,
A groove 91a (see FIG. 11) provided on the lower surface of the cartridge C is guided by the guide pin 1, and as shown in FIG. 7, both lower end edges of the cartridge C are guided by the guide pieces 30a and 30b. It

As shown in FIG. 3, the cartridge table 30 has a pair of support pieces 30e bent and formed at a substantially central portion thereof, and a lock window 30c is formed near the support pieces 30e. A lock member 2 is attached to the support piece 30e. The lock member 2 is swingably supported by inserting the shaft 2a into the support hole of the support piece 30e.
The lock member 2 is formed with a lock protrusion 2b and a drive piece 2c. A coil spring 3 is interposed between the lower surface of the cartridge table 30 and the lock member 2, and the elastic force of the coil spring 3 causes the lock member 2 to lock the lock protrusion 2b.
Is urged in a direction projecting from the lock window 30c. The cartridge table 30 is provided with support pins 5a, 5b, 5c protruding toward the lower surface thereof. Reference numeral 4 is a lock member 2
The first sliding lever (the first
Member). The first sliding lever 4 is formed with elongated holes 4a, 4b, 4c at three locations, and these elongated holes 4a, 4b, 4c are inserted into the support pins 5a, 5b, 5c, The sliding lever 4 is slidably supported. Further, on the side portion of the first sliding lever 4, a pressing portion 4d formed one step lower and an inclined guide 4e continuous with the pressing portion 4d are formed. When the first sliding lever 4 moves in the l direction, the pressing portion 4d presses the drive piece 2c of the lock member 2, the lock member 2 is driven clockwise, and the lock protrusion 2b is retracted from the lock window 30c. . When the first sliding lever 4 moves in the m direction, the pressing portion 4d is disengaged from the driving piece 2c of the lock member 2,
The lock member 2 is driven counterclockwise by the force of the coil spring 3, and the lock protrusion 2b projects from the lock window 30c. Further, the first sliding lever 4 has a first pressed piece.
4f and the second pressed piece 4g are formed. A spring hook 4h is formed by bending at the opposite end.

A second sliding lever (second member) 6 for pushing out and ejecting the cartridge is provided under the first sliding lever 4 in a stacked manner. The long holes 6a and 6b formed in the second sliding lever 6 are the support pins, respectively.
It is inserted through 5a and 5b, and is supported independently of the first sliding lever 4 so that it can slide in the same direction (lm direction). A pressing piece 6c is formed at the tip of the second sliding lever 6. As shown in FIG. 2, the pressing piece 6c projects upward from the notch 30d of the cartridge table 30 and is pushed back by the inserted cartridge C, and at the time of ejection, the pressing piece 6c pushes the cartridge C. It acts to push it out. A spring support piece 6d is formed so as to project from the side of the second slide lever 6, and one end of each of the two coil springs 7 and 8 is connected to this spring support piece 6d. The other end of the one coil spring 7 is hooked on the spring hook 4h of the first sliding lever 4, and the coil spring 7 causes the first sliding lever 4 and the second sliding lever 6 to move to each other. It is connected. The other end of the other coil spring 8 is hooked on a spring pin 9 protruding from the lower surface of the cartridge table 30. As described above, the first sliding lever 4 connected by the coil spring 7
And the second sliding lever 6 are both the coil spring 8
Is urged in the l direction by.

Further, the support pin 11 is provided on the lower surface of the cartridge table 30.
3 is provided, and the eject lever 111 is rotatably supported by the support pin 113. The driven arm 111a of the eject lever 111 projects laterally from the cartridge table 30. Also eject lever
The drive arm 111b provided on the 111 is provided with a first drive pin 112a and a second drive pin 112b. As shown in FIGS. 9A and 9B, the first drive pin 112a is
Facing the first pressed piece 4f of the sliding lever 4 and the first pressing engagement portion is constituted by both of them, and the second drive pin 11
A second pressing engagement portion 2b is formed so as to face the second drive piece 4g.

On the other hand, as shown in FIGS. 1 and 2, the unit Y
Lifting mechanisms 50 are provided at three locations inside. The lifting mechanism 50 includes a guide shaft 51, a lifting screw 52, and a gear 53 fixed to the lifting screw 52.
It consists of and. The gears 53 provided on each of the three lifting mechanisms 50 are rotationally driven in synchronization with each other by a drive mechanism (not shown) provided on the lower surface of the bottom plate 34. The lifting / lowering operation unit 60 is vertically driven in the unit Y by the lifting / lowering mechanisms 50 at these three locations.

As shown in FIG. 4, ascending / descending operation section (disk transfer mechanism)
60 has three guide holes 61 and female screw holes 62 adjacent to the guide holes 61.
Is provided. Guide shaft 51 of the lifting mechanism 50
Are inserted into the respective guide holes 61 provided in the lifting operation unit 60, and the lifting screws 52 are fitted into the respective female screw holes 62.
It is screwed to. The gear 53 is driven by the drive mechanism provided on the lower side of the bottom plate 34, and the respective lifting screws 52 of the three lifting mechanisms 50 rotate in synchronization, so that the lifting operation unit 60 shown in FIG. It is driven up and down in the unit Y. This lifting operation unit
The 60 can be moved to a position for taking out one of the disks inserted in the disk cartridge C described above and a position for ejecting the cartridge.

As shown in FIG. 4, a lifting plate 60 is provided with a support plate 13. The disc ejecting member 25 is supported by a guide pin 26 provided on the supporting plate 13 so as to be linearly movable in the ef direction. This disc ejecting member 25
Is a power conversion device shown in FIGS. 5A, 5B, and 6.
Driven by 10. The structure of the power conversion device 10 will be described below.

Reference numeral 11 is a drive gear. The drive gear 11 is rotatably supported by a shaft 12. As shown in FIG. 6, the drive gear
The shaft 12 that supports 11 is fixed to a support portion 13a that projects from the support plate 13 in the back surface direction. Similarly, as shown in FIG. 6, the drive gear 11 is integral with the boss 11a.
A large-diameter gear 11b is integrally formed at the end of 1a.
The gear 11b meshes with the pinion gear 14.
The power of the motor M mounted on the lifting / lowering operation unit 60 is transmitted to the pinion gear 14 via the worm gear 15, and the gear 11b and the drive gear 11 are driven. A switching lever 16 is provided at the end of the drive gear 11. The switching lever 16 is provided so as to rotate coaxially with the drive gear 11, and is pressed against the end of the drive gear 11 by a spring 17. When the drive gear 11 rotates due to the friction between the switching lever 16 and the drive gear 11, the switching lever 16 follows and rotates. An arm 16a extends to the switching lever 16, and the tip of the arm 16a is bent at a right angle to form a hook 16b. number 5
As shown in FIG. A, the support plate 13 is formed with a notch 13b,
The hook 16b is in the notch 13b. When the drive gear 11 rotates, the switching lever 16 follows and rotates. At this time, the rotation angle of the switching lever 16 is the hook 16b.
Is restricted to the range of movement within the notch 13b. Therefore, for example, when the drive gear 11 rotates clockwise in FIG. 5A, the switching lever 16 rotates by following a small angle,
After the hook 16b hits the edge of the cutout 13b,
Stops and only the drive gear 11 rotates.

Reference numeral 18 is a switching gear. A shaft 19 supporting the switching gear 18 is fixed to the support plate 13. As shown in FIG. 5A, partial teeth 18a are formed on the outer periphery of the switching gear 18 only within a certain angular range. B1 is one end of the partial tooth 18a, and B2 is the other end. The partial teeth 18a of the switching gear 18 can mesh with the driving gear 11, and the driving gear 11 can drive the switching gear 18 within the range of the angle B1 to B2. Further, the switching gear 18 is provided with a pair of pressed protrusions 20a and 20b. These two protrusions 20a and 2
0b is formed by implanting pins. One of the pressed protrusions 20a is arranged at a position spaced from the end B1 of the partial tooth 18a, and the other pressed protrusion 20b is arranged at a position spaced from the partial tooth B2. And as shown in FIG. 6, the arm 16a of the switching lever 16 is
It is arranged in such a positional relationship that the pressed projection 20a or 20b can be pressed at the time of the rotation.

On the other hand, as shown in FIG. 4, a return spring 63 is provided between the disc ejecting member 25 and the support plate 13, and the disc ejecting member 25 is always biased in the returning direction (e direction). . A disc pressing piece 25b and an eject drive protrusion 25c are integrally formed on the left end portion of the disc ejecting member 25 in the figure.

Further, the lifting operation unit 60 is provided with a reduction gear group 64. The motor M that drives the power converter 10 is a pinion gear.
Although driving 14, the reduction gear group 64 meshes with the pinion gear 14. The reduction gear group 64 meshes with the roller drive gear 65. This roller drive gear
65 is fixed to the end of the upper disk pull-out roller 66. As shown in FIG. 4, both ends of the upper pull-out roller 66 are supported by swing levers 67. The swing lever 67 is swingably supported with a pin 67a as a fulcrum. The swing lever 67 is urged downward by a spring 68, and the urging force sets a disc clamping force between the upper pull-out roller 66 and the lower pull-out roller 69. The lower pull-out roller 69 is rotatably supported without moving up and down. A projecting portion 66a projecting from the swing lever 67 is provided at the end of the upper pulling roller 66. As shown in FIG. 1, the bottom plate 34 is provided with a roller restricting piece 70, and when the raising / lowering operation part 60 descends to the disc playing position, the protruding part 66a hits the roller restricting piece 70,
By the rotation of the swing lever 67, the upper pull-out roller 66 relatively escapes upward with respect to the descending lifting operation unit 60, and the disc holding force by the pair of rollers 66 and 69 is released. (See FIG. 8).

In addition, as shown in FIG.
Is provided. This clamper 80 has a clamp lever 81
It is rotatably supported at the tip of the. The clamp lever 81 is supported by a support pin 82 so as to be swingable in a relatively free state. When the raising / lowering operation unit 60 descends to the playing position in the unit Y, the rear end portion 81a of the clamp lever 81 fits into the V groove of the clamper support member 43 of the disk drive unit 40 shown in FIG. The clamper 80 turns the disc by the regulation operation
Works like clamping to 41.

Further, the raising / lowering operation unit 60 is provided with a mechanism such as a support table 71 for supporting the disk pulled out from the inside of the cartridge C by the pull-out rollers 66 and 69 from below. When the raising / lowering operation unit 60 descends to the playing position, the support table 71 and the lower pull-in roller 69 escape below the turntable 41 so that they do not interfere with the disc rotationally driven by the turntable 41. ing.

Next, the structure of the loaded disk cartridge will be described with reference to FIGS. 10 and 11.

This disk cartridge C has a plastic case 90
A plurality of (6 in the illustrated embodiment) disks DS are housed therein. FIG. 10 is a perspective view showing the same direction as the insertion direction shown in FIG. 1, and FIG. 11 shows a state in which the bottom cover 91 is removed with the figure upside down.

A plurality of partition plates 92 are inserted in the case 90. First
As shown in FIG. 11, spacers 92a are integrally provided at both ends of the partition plate 92. A plurality of partition plates 92 are stacked, and a slit S having a constant width is formed according to the vertical dimension of the spacer 92a. The slit S divides the interior into a plurality of layers, and the discs DS are housed in the slits S, respectively. In the case of the illustrated embodiment, the slit S is divided into six sections, and six discs DS can be stored.

In addition, a pair of left and right leaf springs 93 is housed in the case 90. The leaf spring 93 is formed in a substantially triangular shape, and is arranged so as to penetrate each partition plate 92. As shown in FIG. 12, the fulcrum of the leaf spring 93 in the disc urging direction changes according to the position of the disc DS to be stored. Therefore, in FIG. 12, when the disc DS is completely inserted, the leaf spring 93 urges the disc DS in the housing direction, and when the disc DS is ejected, the leaf spring 93 displaces the disc DS in the ejection direction. Function to urge to. Further, a disc ejector 94 is provided on the back side of the case 90. The ejector 94 is rotatably inserted into the shaft 95. In the illustrated embodiment, six ejectors 94 are provided so as to be overlapped with each other, each of which is located on the back side of each of the six slits S,
It faces the rear end of the disc DS housed in each slit S (see FIG. 12).

The case 90 has an inclined surface 96 at one corner (corner in the insertion direction). When the disc cartridge C is mounted in the cartridge mounting part D, the disc ejecting member 25 provided in the elevating / lowering part 60 as shown in FIG.
The disk pressing piece 25b faces the inclined portion 96, and the disk pressing piece 25b faces the rear end of the ejector 94.

Further, on the lower surface of the bottom cover 91, the guide pin 1 (second
Groove 91a guided by (see figures and FIG. 3),
In addition, a lock recess 91b into which the lock protrusion 2b of the lock member 2 is inserted is formed (see FIG. 11).

Next, the operation of the disc changer will be described with a focus on the cartridge eject operation.

A disc DS is accommodated in each slit S of the disc cartridge C, and the disc cartridge C accommodating the plurality of discs DS is mounted in the cartridge mounting portion D in the unit Y.

When the cartridge C is pushed into the cartridge mounting portion D, the groove 91 formed in the bottom cover 91 of the cartridge C.
a (see FIG. 11) is guided by the guide pin 1 on the cartridge table 30, and
Both sides of the lower end of the cartridge C are guided by the guide pieces 30a and 30b at both edges of the cartridge 30. When the cartridge C is inserted, the cartridge C is inserted into the pressing piece 6c of the second sliding lever 6 protruding from the notch 30d as shown in FIG.
The tip of the cartridge hits,
The sliding lever 6 of is pushed in the m direction. As shown in FIG. 9A and FIG. 3, when the second sliding lever 6 is pushed in the m direction, the first sliding lever 4 connected by the spring 7 is also pushed out in the m direction. The first pressed piece 4f provided on the first sliding lever 4 causes the first
Drive pin 112a is pushed, which causes the eject lever
111 is rotated counterclockwise. When the first slide lever 4 and the second slide lever 6 connected to the first slide lever 4 by the spring 7 are pushed into the m direction by a certain distance by the inserted cartridge C, the first slide lever 4 is formed on the first slide lever 4. The pressed portion 4d is a driving piece of the lock member 2.
2c is disengaged, the lock member 2 is driven counterclockwise by the force of the coil spring 3, and the lock protrusion 2b projects above the cartridge table 30. And this lock protrusion
2b fits in the lock recess 91b formed in the bottom cover 91 of the cartridge C. That is, the cartridge C is locked in a state where it is inserted in the regular position in the cartridge mounting portion D. Also, the tilt guide 4e of the first sliding lever 4
Comes into contact with the driving piece 2c of the lock member 2, so that the first sliding lever 4 is locked by the urging force of the spring 8 so that it cannot return in the 1 direction. When the cartridge C is pushed by a strong force in the above cartridge inserting operation, the force acts on the second sliding lever 6, but in this case, the first sliding lever 4 And a spring 7 that connects the second sliding lever 6 with
Is absorbed by stretching.

Further, the loaded disc cartridge C is in a state in which the disc ejection port side faces the disc playing portion E.

Next, the performance operation will be described.

When a desired disc in the disc cartridge C is played, a disc to be played is first searched. This search operation is performed by rotating the elevating screws 52 of each elevating mechanism 50 in synchronization with each other by a drive mechanism provided under the bottom plate 34 of the unit Y. By the rotation operation of each lifting screw 52, the fourth
The raising / lowering operation unit 60 shown in the figure operates up and down in the unit Y. In the drive mechanism provided on the lower side of the bottom plate 34, the operation amount is detected by the sensor,
By the detection operation of this sensor, it is possible to recognize which height position the lifting operation unit 60 has reached. That is, by recognizing the height position of the raising / lowering operation unit 60, the raising / lowering operation unit 60 is moved to the slit S of the cartridge C.
It is possible to face the desired one of them. As shown in FIG. 7, when the search operation is completed, the lifting operation unit 60 stops at a predetermined height position, and at this time, the pair of pull-out rollers 66 and 69 provided in the lifting operation unit 60 cause the cartridge It faces the front of any slit S of C. In addition, as shown in FIG.
The disc pressing piece 25b of the disc ejecting member 25 provided on the disc 60 faces the ejector 94 in the disc cartridge 90 located behind the slit S where the pull-out rollers 66 and 69 face each other.

In this state, the motor M provided in the lifting operation unit 60
Will start. At this time, the motor M drives the pinion gear 14 in the direction indicated by i in FIG. 6, the roller drive gear 65 is driven through the reduction gear group 64, and the upper pull-out roller 66 rotates in the g direction. At the same time, the power of the pinion gear 14 is transmitted to the large-diameter gear 11b, and the drive gear 11 integrated with this is driven in the b direction. In the power conversion device 10,
At this time, since the drive gear 11 rotates in the b direction from the state shown in FIG. 5B, the switching lever 16 follows and rotates, and the arm 16a pushes the pressed projection 20b to drive the drive gear 11.
Meshes with the partial teeth 18a of the switching gear 18, and the switching gear 18
Driven in the direction. Then, in the switching gear 18 rotated to the state shown in FIG. 5A, the ends B1 of the partial teeth 18a thereof are disengaged from the drive gear 11, and the power transmission is cut off. The rotation of the switching gear 18 during this time causes the drive pin 21 to reciprocate the disc ejection member 25. At this time, during the process of the disc ejecting member 25 in the f direction, the disc pressing piece 25b of the disc ejecting member 25 is
2 Press the ejector 94 shown in the figure. This ejector 94
By the operation of, the disc DS is ejected from the inside of the cartridge 90. At this time, since the upper pull-out roller 66 provided in the lifting operation unit 60 is rotating in the g direction (see FIG. 6), the disc DS ejected from the cartridge C is nipped by the pull-out rollers 66 and 69. Then, due to the rotational force of the upper pull-out roller 66, the pull-out roller 66 is pulled out into the support table 71 in the lifting / lowering operation unit 60. Disk DS moves up and down 60
The motor M stops when it is completely housed inside. During the operation of the pull-out roller 66 in the g direction at this time, in the power conversion device 10, the switching gear 18 reaches the state shown in FIG. 5A and is stopped.

After the disk DS is drawn into the lifting / lowering unit 60, the lifting / lowering mechanism 50 is started, and the lifting / lowering unit 60 is moved to the lowest position shown in FIG. The disc DS held in the lifting / lowering operation unit 60 is set on the turntable 41 of the disc drive unit 40 and clamped by the clamper 80. Further, the upper pull-in roller 66 is lifted by the roller restricting piece 70 provided on the bottom plate 34 and separated from the disc DS. Further, the lower pull-in roller 69 and the support table 71 move below the turntable 41, the disc DS is brought into a free state, is driven by the turntable 41, and is reproduced by the optical pickup 42.

Next, the operation of returning the finished disc DS to the cartridge C will be described.

When the playback operation by the disk drive unit 40 is completed,
The elevating / lowering unit 60 moves up, and the lower pull-out roller 69 and the support table 71 raise the disc DS.
On the way, the upper pull-out roller 66 separates from the roller regulating piece 70, and the disc DS is nipped by both rollers 66 and 69. The raising / lowering operation unit 60 has a predetermined slit S of the cartridge C.
When it is lifted to the position of (the slit from which this disc is pulled out) and stopped, the motor M in the lifting / lowering operation unit 60 is started. At this time, the pinion gear 14 is driven by the motor M in the g direction in FIG. Therefore, the upper pull-out roller 66 rotates in the i direction, and the disc DS is sent back from the raising / lowering operation unit 60 into the slit S of the cartridge C. 12th
As shown in the figure, when the disc DS is pushed into the slit S by a certain distance, the urging direction of the leaf spring 93 changes, and the disc DS is automatically pushed into the slit by the leaf spring 93. During the operation of returning the disk DS, the drive gear 11 of the power converter 10 is driven in the clockwise direction (direction a) from the state shown in FIG. 5A, and the switching gear 18 is rotated counterclockwise (direction b). It moves to the state shown in FIG. 5B. During this time, the drive pin 21 causes the disc ejecting member 25 to reciprocate once, and the disc pressing piece 25b of the disc ejecting member 25 pushes the ejector 94 in the cartridge C inwardly of the case 90. Since the disc ejecting member 25 returns in the direction e before it is completely returned to the inside of C, the operation of returning the disc DS is not hindered.

Next, the eject operation of the cartridge will be described.

When the cartridge C is ejected from the cartridge mounting portion D, the elevating operation portion 60 is lowered to the lowest position shown in FIG. This lowest position is the same position as the lowered position of the lifting / lowering operation unit 60 during the above-described disc reproducing operation.
At the lowermost position of the lifting / lowering operation unit 60 shown in FIG. 8, the disc pressing piece provided at the rear end of the disc ejecting member 25.
25b has moved to the lower side of the cartridge C, that is, the lower side of the cartridge table 30. Further, as shown in FIG. 9A, the eject drive protrusion formed on the disc ejection member 25.
25c faces the driven arm 111a of the eject lever 111.

When the operation for discharging the cartridge is performed, the motor M in the lifting / lowering operation unit 60 is started, and the disk discharging member 25 is reciprocated by the power conversion device 10 in the same manner as the discharging operation of the disk DS from the cartridge C. To be made. However, at this time, since the disc pressing piece 25b is located below the cartridge C, the disc pressing piece 25b swings below the cartridge C, and the ejector 94 in the cartridge is not pushed. Absent. As shown in FIG. 9A, when the disc ejecting member 25 moves in the f direction, the first drive pin 1 of the eject lever 111 is moved.
The first pressed piece 4f is pushed by 12a, and the first sliding lever 4 is pushed in the 1 direction. At this time, the center of rotation of the eject lever 111 (support pin 113) and the power application point (first
Since the distance L1 from the drive pin 112a) is short, a large pushing force F1 acts on the first sliding lever 4. Due to this pushing force, the tilt guide 4e provided on the first sliding lever 4 rides on the driving piece 2c of the lock member 2, and the pushing piece 4d pushes the driving piece 2c downward, so that the locking member 2 moves clockwise. When driven, the lock protrusion 2b is pulled in from the cartridge table 30, and the lock with respect to the disc cartridge C is released. Further, the first sliding lever 4 is pushed in the 1 direction by the pushing force F1 and the spring 8 together with the second sliding lever 6, and the cartridge C is ejected by the pushing piece 6c of the second sliding lever 6. However, as shown in FIG. 9B, since the eject lever 111 is largely rotated in the clockwise direction by the operation of the cartridge discharge member 25 in the f direction, the second drive pin 112b is moved to the first slide lever 4 by the second drive pin 112b. It hits 4 g of the pressed piece of 2 and this is l by the force of F2.
It will push in the direction. Since the point of action of the force F2 at this time is farther from the rotation center 113 than the distance L1 of the point of action of the force F1, F2 is a weaker force than F1. Ie the first
Since a large force is required when the lock member 2 is pulled in by the tilt guide 4e of the sliding lever 4, the large sliding force F1 drives the first sliding lever 4 at this time to unlock the lock member 2. After that, the first sliding lever 4 is driven by the weak force F2. In this way, the first sliding lever 6 is pushed out to the end in the l direction by the drive pin 112b provided on the eject lever 111, so that the cartridge C can be reliably ejected.

〔effect〕

As described above, according to the present invention, the cartridge setting portion is provided with the first member and the second member, and the function of driving the lock member in the unlocking direction by the first member and pushing out the cartridge by the second member is provided. It is exerting. When operating the locking member in the unlocking direction, the locking member must be disengaged from the cartridge and the locking member must be driven against the biasing force. Therefore, the driving load of the first member is large, and it is necessary to reliably operate the first member having the large load for a short distance. Further, in order to reliably eject the cartridge after the lock is released from the cartridge mounting portion, it is necessary to move the second member for a long distance. According to the present invention, by rotating one eject lever, the first member and the second member can be reliably operated according to their respective functions.

That is, the first pressing engagement portion provided at a position close to the rotation fulcrum of the eject lever reliably pushes out the first member against a large load for a short distance, and at a position far from the rotation fulcrum. The second pressure engaging portion ensures that the second member can be pushed out over a long distance. The structure of the mechanism is simple because the first member and the second member are performed only by one eject lever according to the individual characteristics.
Moreover, a reliable cartridge eject operation is performed.

In particular, the present invention makes it possible to reliably eject the cartridge when the disc changer is installed vertically and the cartridge is loaded from directly above.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing the entire structure of a disc changer and a disc reproducing apparatus integrated with the disc changer, and FIG. 2 is a perspective view showing a cartridge mounting portion and a disc playing portion. FIG. 3 is an exploded perspective view showing the structure of a cartridge ejecting device provided below the cartridge mounting portion, FIG. 4 is a perspective view showing a lifting operation portion (disk transfer mechanism), and FIGS. 5A and 5B. Is an enlarged front view showing the mechanism for driving the disc ejecting member by operation, FIG. 6 is a plan view thereof, and FIGS. 7 and 8 are enlarged front views of the apparatus showing a state in which a cartridge is mounted, and FIG. 9A. FIG. 9B is a plan view showing the cartridge ejecting device for each operation,
10 is a perspective view showing the disc cartridge, FIG. 11 is an exploded perspective view showing the disc cartridge upside down, FIG.
The drawing is a plan view showing the operation of ejecting the disc from the cartridge. 2 …… Lock member, 4,6 …… Sliding lever, 111 …… Eject lever, 11 …… Drive gear, 16 …… Switching lever, 16a
…… Arm, 16b …… Hook, 17 …… Spring, 18…
... Switching gear, 18a ... Partial teeth, 20a, 20b ... Pressed projection,
20 ... Drive pin, 25 ... Disc ejection member, 25b ... Disc pressing piece, 25c ... Eject drive protrusion, C ... Disc cartridge, D ... Cartridge mounting part, E ...
… Disc playing part, DS …… disc, M …… motor, 40
...... Disk drive unit, 41 ...... Turntable, 42
...... Optical pickup, 50 ・ ・ ・ Lifting mechanism, 60 ・ ・ ・ Lifting / lowering operation part (disk transfer mechanism), 66, 69 …… Disk pulling roller, 80 …… Clamper.

Claims (1)

[Claims] 1. A cartridge mounting portion into which a cartridge accommodating a disk is introduced, a lock member engaging with the cartridge introduced into the cartridge mounting portion, and a biasing member for biasing the lock member in the engagement direction with the cartridge. A biasing member, a first member that drives the lock member in the unlocking direction against the biasing force of the biasing member, and a pressing portion that presses the cartridge unlocked by the locking member in the ejection direction. It has a second member and an eject lever which is rotated by receiving a driving force when the cartridge is ejected, and the eject lever has a first member for pressing the first member in the unlocking direction when the eject lever is rotated. A first pressing engagement portion and a second pressing portion that is located farther from the rotation fulcrum than the first pressing engagement portion and presses the second member in the cartridge ejection direction. Cartridge ejector of the disc player, wherein the engagement portion is provided.