JPH0289250A - Cartridge ejecting device for disk changer - Google Patents

Abstract

PURPOSE:To completely eject a cartridge even when the force of a spring is weak by allowing an eject lever driven by the power of a motor or the like to successively press a slide lever by the 1st and 2nd pressure engaging parts. CONSTITUTION:In the initial process of rotating operation, the eject lever 111 presses the slide lever 4 in a loading port direction through the 1st pressure engaging part 4f. At that time, a pressing part formed on the slide lever 4 recedes a lock member 2 to unlock a disk cartridge. When the eject lever 111 is furthermore rotated, the lever 11 presses a slide lever 6 through the 2nd pressure engaging part 4g. The slide lever 6 is pressed by the eject lever 111 almost up to the final position so as to moved, and at that time, the slide lever 6 presses the disk cartridge in the loading port direction. Consequently, resistance force at the time of loading the cartridge is weakened and the loading operation can be made easy.

Description

Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to a disc changer that selects a plurality of discs and is installed in a disc playing section, and particularly relates to a disc changer that selects a plurality of discs and is installed in a disc playing section. The present invention relates to a cartridge ejecting device for ejecting the cartridge from its mounting portion.

[Prior Art] Disc playback devices equipped with a disc changer have been put into practical use in recent car audio systems and the like.

In this type of disc changer, a disc cartridge C as shown in FIG. 1O is used, for example, and a plurality of discs are stored in this disc cartridge C. When this disk cartridge C is installed, a disk is searched for by a disk transport mechanism, a predetermined disk is pulled out and carried to a disk playing section, and a disk playing unit provided in this disk playing section performs a playback operation. .

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. A disk eject device is provided for this purpose, but
Conventional devices of this type are provided with a lever that biases the disc cartridge in the ejection direction, and the disc cartridge is inserted against the biasing force of a spring or the like acting on this lever, and when it is in the correct position. Generally, the cartridge itself or the lever is locked.When ejecting the cartridge to replace the next cartridge C, etc., the lock is locked by the operation of a solenoid during the eject operation. is canceled. As a result, the lever is pushed toward the disk insertion slot by the force of the spring, and the disk cartridge is ejected by this lever.

(Problems to be Solved by the Invention) In the above conventional technology, a lever is biased by a spring, and the lever is used to eject the disc cartridge.However, the disc cartridge loaded into the disc changer is Because it stores multiple CDs (compact discs), it is heavy.Therefore, in order to eject these discs reliably, the elastic force of the spring that biases the lever is set to be quite strong. Therefore, when inserting the disk cartridge, the biasing force of the spring becomes a resistance force, and a large force is required when inserting the disk cartridge, making it extremely difficult to handle. Currently, this type of disc changer is generally installed in the trunk of a car, etc., so that the cartridge insertion direction is almost horizontal. It is also predicted that the cartridge will be installed so that the insertion direction is almost vertical.In this case, the cartridge ejection direction will be directly above, so if the conventional cartridge eject device described above is used, the cartridge will not be inserted in the ejection direction. Therefore, in this case, the resistance force when inserting the cartridge becomes even greater.

The present invention solves the above-mentioned problems by making the resistance force as low as possible when inserting the cartridge, and in the ejection operation of the cartridge, the cartridge is reliably pushed out to the end at 2·S' by the power of a motor, etc. An object of the present invention is to provide a cartridge ejecting device for a disk changer that can completely eject a cartridge.

[Means to solve the problem]

The cartridge ejecting device according to the present invention is provided with a cartridge loading section into which a disc cartridge containing a plurality of discs is inserted, and a disc transport mechanism that selects and takes out a disc from the disc cartridge and guides it to a disc playing section. In the disc changer, the cartridge mounting portion is provided with a cartridge table that guides the cartridge, and the cartridge table is biased in a direction to fit into a lock recess formed in the disc cartridge. A locking member that is pushed by the disk cartridge when it is inserted, moves toward the back of the cartridge mounting section, and is biased toward the cartridge insertion opening by a spring, and a sliding lever that An eject lever is provided that is rotated by power in response to an ejection operation, and the sliding lever has a pressing portion that retracts the locking member from the locking recess when moving toward the cartridge insertion opening. provided between the sliding lever and the eject lever,
A first pressing engagement part that pushes the sliding lever in the direction of the insertion slot during the first stroke of the eject lever rotating in response to the ejection operation of the disk cartridge; The present invention is characterized in that two pressing engagement portions are provided.

[For production]

In the cartridge ejecting device described above, when a disk cartridge is inserted, a lever is pushed in the direction of insertion, and when this lever moves to the back and the cartridge moves to a predetermined position, the pressing part of the lever releases the previously restricted control. The locking member protrudes and fits into the locking recess of the disk cartridge, thereby locking the disk cartridge. Next, when ejecting the cartridge, the eject lever is rotated by the power of a motor or the like. In the first stroke of this rotational movement, the eject lever pushes the sliding lever in the direction of the insertion port via the first pressing engagement part, and at this time, the pressing part provided on the sliding lever causes the locking member to retract. , the lock on the disk cartridge is released. When the eject lever further rotates, the eject lever presses the sliding lever via the second pressing engagement portion. The sliding lever is moved almost to the end by being pushed by the eject lever,
At this time, the sliding lever pushes the disc ridge toward the insertion slot.In this way, when the cartridge is ejected, the sliding lever is pushed out by the eject lever, so the sliding lever is moved toward the insertion slot. This means that the elastic force of the urging spring may be weak.

Therefore, the resistance force when inserting the cartridge becomes weaker,
The insertion operation becomes easier.

[Example 1 The present invention will be explained in detail below.

Fig. 1 is an external perspective view showing the overall structure of a disc changer and a disc player integrated with the disc changer, Fig. 2 is a perspective view showing the internal cartridge mounting section and disc playing section, and Fig. 3 is a bottom view of the cartridge mounting section. FIG. 4 is an exploded perspective view showing the cartridge ejecting device provided on the side, and FIG. 4 is a perspective view showing the elevating operation section (disk transfer mechanism).

This device consists of a cartridge mounting section, indicated by reference numeral, and a disk playing section, indicated by E. As shown in FIG. 1, a disc cartridge C containing a plurality of discs (compact discs in the illustrated embodiment) is inserted from the front into a cartridge mounting portion. A cartridge table 30 is installed below the disk mounting portion. This cartridge table 3
0 is fixed to the bottom plate 34, and the disk cartridge C is guided and mounted on this cartridge table 30. A pressure roller 31 is provided on the ceiling plate 32 of the main body of the apparatus. The pressure rollers 31 each have a leaf spring 3
3 and the loaded cartridge C
is pressed against the cartridge table 30 by the biasing force of the leaf spring 33.

As shown in FIG. 2, a disk drive unit 40 is arranged in the disk playing section E adjacent to the cartridge mounting section. This disk drive unit 40 is fixed on the surface of the bottom plate 34 in parallel with the disk table 30.

This disk drive unit 40 includes a turntable 4.
1, an optical pickup 42, and a clamper support member 43. This disk drive unit 40
is arranged at the lowest part of the entire apparatus shown in FIG. 1, and the disc DS pulled out from the disc cartridge C by a lifting drive unit 60, which will be described later, is carried to this lowest part, and the center of the disc is placed on the turntable. 41 and clamped by a clamper. The disk is rotated together with the turntable 41 by the force of the motor, and a performance is performed by the optical pickup moving along the guide shaft 44.

As shown in FIG. 1, in the illustrated embodiment, the disc mounting section, the disc playing section E, etc. are connected to the ceiling plate 3.
2. Unit Y surrounded by the bottom plate 34 and left and right side plates 35a and 35b connecting the ceiling plate 32 and the bottom plate 34
It is located inside. The unit Y surrounded by the ceiling plate 32, bottom plate 34, and side plates 35a and 35b is
These are supported by a casing provided on the outside.

That is, the casing is composed of a bottom casing 36 and side casings 37a and 37b fixed thereto. The unit Y is floatingly supported by a plurality of floating dampers 38a, 38b, and 38c with respect to this housing. The floating damper is a rubber bag filled with air or liquid. In Figure 1, it is assumed that the bottom plate 34 and the bottom housing 36 are installed in a horizontal position. Side plates 35a and 35b are suspended from side housings 37a and 37b by vertically disposed suspension springs 39. The disk changer can also be installed so that the cartridge insertion direction is from directly above, that is, the horizontal direction in FIG. 1 is the vertical direction. In this case, the suspension spring 39 is unlatched, and the unit Y is suspended in the direction of gravity. Among the plurality of floating dampers, the one indicated by reference numeral 38c is oriented to support the unit Y at an angle of 45 degrees, but as described above, if it is installed in a direction in which the cartridge insertion direction is perpendicular. In this case, the floating damper 38c arranged at 45 degrees supports the unit Y and effectively exhibits a damper effect.

As shown in FIG. 3, guide pieces 30a and 30b are bent and formed on both left and right edges of the cartridge table 30 provided in the cartridge mounting section. Moreover, three guide bins l are provided on the upper surface.

Cartridge C has a shape as shown in FIGS. 10 and 11 (an exploded perspective view shown upside down),
When this cartridge C is installed in the cartridge mounting section, the groove 91 provided on the bottom surface of the cartridge C
a (see FIG. 11) is guided by the guide bin 1, and as shown in FIG. 7, both lower end edges of the cartridge C are guided by the guide pieces 30a and 30b.

As shown in FIG. 3, a pair of support pieces 30e are bent and formed approximately in the center of the cartridge table 30.
Furthermore, a lock window 30c is formed near it. A locking member designated by reference numeral 2 is attached to the support piece 30e. This locking member 2 has a shaft 2a that is connected to the support piece 3.
It is supported in a swingable manner by being inserted into the support hole 0e. This 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 its elastic force biases the lock member 2 in a direction in which the lock protrusion 2b projects from the lock window 30c. .

The cartridge table 30 is provided with support bins 5a, 5b, and 5c that protrude toward its lower surface. Reference numeral 4 is a first sliding lever. This first sliding lever 4 has elongated holes 4a, 4b, and 4C formed at three locations, and these elongated holes 4a, 4b, and 4c are connected to the support bins 5a, 5b, and 5c.
The first sliding lever 4 is slidably supported.

Furthermore, a side portion of the first sliding lever 4 is formed with a pressing portion 4d that is formed one step lower and a guide slope 4e that is continuous with the pressing portion 4d. When the first sliding lever 4 moves in two directions, the driving piece 2c of the locking member 2 is moved by the pressing portion 4d.
is pressed, the lock member 2 is driven clockwise, and the lock protrusion 2b is retracted from the lock window 30c. Further, when the first sliding lever 4 moves in the m direction, the pressing portion 4d is disengaged from the drive piece 2C of the locking member 2, and the locking member 2 is driven counterclockwise by the force of the coil spring 3, and the locking protrusion 2b protrudes from the lock window 30c.

Further, the first sliding lever 4 is formed with a first pressed piece 4f and a second pressed piece 4g. Further, a spring hook 4h is bent and formed at the opposite end.

A second sliding lever 6 is located below the first sliding lever 4.
are placed one on top of the other. The long holes 6a and 6b formed in the second sliding lever 6 are connected to the support bin 5, respectively.
a and 5b, and is supported so that it can slide independently of the first sliding lever 4 and in the same direction (2-m direction). A pressing piece 6c is formed at the tip of the second sliding lever 6. As shown in Figure 2,
This pressing piece 6c is located in the notch 3 of the cartridge table 30.
It protrudes upward from 0d, and is pushed back by the inserted cartridge C, and this pressing piece 6C acts to push out the cartridge C when it is ejected. A spring support piece 6d is formed protruding from the side of the second sliding lever 6.
One end of each of the coil springs 7 and 8 is connected. The other end of one coil spring 7 is hung on a spring hook 4h of the first sliding lever 4,
The first sliding lever 4 and the second sliding lever 6 are connected to each other by this coil spring 7. The other end of the other coil spring 8 is hung on a spring pin 9 protruding from the lower surface of the cartridge table 30.

As mentioned above, the first sliding lever 4 and the second sliding lever 6, which are connected by the coil spring 7, are both biased in two directions by the coil spring 8.

Further, a support bin 113 is provided on the lower surface of the cartridge table 30, and the eject lever 111 is rotatably supported by the support bin 113.

A driven arm 111a of the eject lever 111 projects laterally from the cartridge table 30. Further, a drive arm 111b provided on the eject lever 111 is provided with a first drive bin 112a and a second drive bin 112b. As shown in FIGS. 9A and 9B, the first drive pin 112a faces the first pressed piece 4f of the first sliding lever 4, and the two constitute a first pressing engagement part. Further, the second driving pin 112b has a second pressing engagement portion opposed to the second driving piece 4g.

On the other hand, as shown in FIGS. 1 and 2, the unit Y
Elevating and lowering mechanisms 50 are provided at three of the locations. This elevating mechanism 50 includes a guide shaft 51, an elevating screw 52, and a gear 53 fixed to the elevating screw 52. The gears 53 provided in each of the three lifting mechanisms 50 are connected to the bottom plate 34.
They are rotated in synchronization with each other by a drive mechanism (not shown) provided on the lower surface of the .

The elevating mechanism 50 at three locations drives the elevating and lowering section 60 in the vertical direction within the unit Y.

As shown in Fig. 4, the elevating operation section (disk transfer mechanism)
60 is provided with a guide hole 61 and an adjacent female thread 662 at three locations. The guide shaft 51 of the elevating mechanism 50 is inserted into each guide hole 61 provided in the elevating operation section 60, and the elevating screw 52 is screwed into each female thread 662. A gear 53 is driven by a drive mechanism provided under the bottom plate 34, and the lifting screws 5 of each of the three lifting mechanisms 50 are driven.
2 rotate in synchronization, the elevating and lowering operation section 60 shown in FIG. 4 is driven to move up and down within the unit Y. This lifting/lowering operation allows the lifting/lowering operation section 60 to move to a position for taking out any of the disks inserted into the disk cartridge C described above and a cartridge ejection position.

As shown in FIG. 4, a support plate 13 is provided in the lifting/lowering section 60. As shown in FIG. A guide bin 26 provided on this support plate 13 allows the disk ejection member 25 to be moved linearly e-f.
It is supported so that it can move in any direction. This disk ejection member 25 is driven by the power converter 10 shown in FIGS. 5A, 5B, and 6. The structure of this power conversion device IO will be explained below.

Reference numeral 11 is a drive gear. This drive gear 11 is a shaft 12
is rotatably supported. As shown in FIG. 6, the shaft 12 supporting the drive gear 11 is fixed to a support portion 13a that protrudes from the support plate 13 toward the rear surface. Similarly, as shown in FIG. 6, the drive gear 11 is integrated with a boss lla, and a large-diameter gear llb is attached to the end of the boss lla.
are integrally formed. This gear llb meshes with the pinion gear 14. The power of the motor M mounted on the lift drive unit 60 is transmitted to the pinion gear 14 via the worm gear 15, and further drives the gear llb and the drive gear 11. Further, a switching lever 16 is provided at the end of the drive gear 11. The switching lever 16 is provided 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 friction between the switching lever 16 and the drive gear 11, the switching lever 16 follows and rotates. An arm 16a extends from the switching lever 16, and the tip of the arm 16a is bent at a right angle to form a hook 16b.

As shown in FIG. 5A, a cutout 13b is formed in the support plate 13, and the hook 16b is inserted into the cutout 13b. When the drive gear 11 rotates, the switching lever 16
follows and rotates, but the rotation angle of the switching lever 16 at this time is limited to the range in which the hook 16b moves within the notch 13b. Therefore, for example, the drive gear 11 is
When rotated clockwise in the figure, the switching lever 16 follows and rotates by a small angle, but after the hook 16b hits the edge of the notch 13b, the switching lever 16 stops and only the drive gear 11 rotates.

Reference numeral 18 is a switching gear. A shaft 19 supporting this 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 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, so that the driving gear 11 can drive the switching gear 18 within the angle range from B1 to B2. The switching gear 18 also has a pair of pressed protrusions 20.
a and 20b are provided. These same protrusions 20a and 20
b is formed by planting bottles. One of the pressed protrusions 20a is arranged at a position spaced apart from the end Bl of the partial tooth 18a, and the other pressed protrusion 2
0b is arranged at a position spaced apart from the partial tooth B2. As shown in FIG. 6, the arm 16a of the switching lever 16 is arranged in such a position that it can press the pressed protrusion 20a or 20b when the arm 16a rotates.

On the other hand, as shown in FIG. 4, a return spring 63 is provided between the disc ejection member 25 and the support plate 13, and the disc ejection member 25 is always urged in the return direction (direction e). . Further, a disk pressing piece 25b and an eject drive protrusion 25c are integrally formed at the left end of the disk ejecting member 25 in the drawing.

Further, a reduction gear group 64 is provided in this lifting/lowering operation section 60 . The motor M that drives the power conversion device 10 drives a pinion gear 14, and the reduction gear group 64 meshes with this pinion gear 14. The reduction gear group 64 meshes with a roller drive gear 65. This roller drive gear 65 is fixed to the end of the upper disk pull-in roller 66. As shown in Figure 4,
Both ends of this upper pull-in roller 66 are attached to the swing lever 6
Supported by 7. This swing lever 67 is swingably supported around a pin 67a as a fulcrum. Further, the swing lever 67 is urged downward by a spring 68, and this urging force causes the upper retraction roller 6
A disk clamping pressure is set between the roller 6 and the lower pull-in roller 69. Note that the lower drawing roller 69 is rotatably supported without moving up and down. Note that a protrusion 66a that protrudes from the swing lever 67 is provided at the end of the upper pull-in roller 66. As shown in FIG. 1, a roller regulating piece 70 is provided on the bottom plate 34, and when the elevating operation section 60 descends to the disc playing position, the protrusion 66a comes into contact with this roller regulating piece 70, and the swing lever 67, the lifting/lowering operation part 6 descends.
The upper pull-in roller 66 relative to 0 escapes upwardly, and the disk clamping force between the pair of rollers 66 and 69 is released (see FIG. 8).

Further, as shown in FIG. 4, a clamper 80 is provided in the lifting/lowering section 60. This clamper 80 is rotatably supported at the tip of a clamp lever 81. The clamp lever 81 is supported by a support pin 82 so as to be able to swing freely in a relatively free state. When the lifting/lowering section 60 descends to the performance position within the unit Y, the rear end 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 operates to clamp the disk to the turntable 41 by the regulating operation.

Further, the elevating and lowering operation section 60 includes pull-out rollers 66 and 69.
A mechanism such as a support table 71 is provided to support the disk pulled out from inside the cartridge C from below. When the lifting/lowering unit 60 is lowered to the performance 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 explained with reference to FIGS. 10 and 11.

This disk cartridge C has a plastic case 9.
A plurality of discs (six discs in the illustrated embodiment) are stored in the disc 0. FIG. 10 is a perspective view taken from the same direction as the insertion direction shown in FIG. 1, and FIG. 11 shows a state in which the device is turned upside down from FIG. 10 and the bottom cover 91 is removed.

A plurality of partition plates 92 are inserted into the case 90. As shown in FIG. 11, spacers 92a are integrally provided at both ends of the partition plate 92. As shown in FIG.

A plurality of each partition plate 92 is stacked, and spacers 92a
A slit S of a constant width is formed according to the vertical dimension of the slit. The interior is divided into a plurality of solar calendars by this slit S, and a disk DS is housed in each of these slits S. In the case of the illustrated embodiment,
The slit S is divided into six sections, and six discs DS can be stored therein.

Furthermore, a pair of left and right leaf springs 93 are housed within the case 90. This leaf spring 93 is formed into a substantially triangular shape, and is arranged so as to pass through each partition plate 93. As shown in FIG. 12, the fulcrum in the disk urging direction by the leaf spring 93 changes depending on the position of the stored disk DS. Therefore, when the disk DS is fully inserted in FIG. 12, the leaf spring 9
3 biases the disk DS in the direction to store it, and
When S is ejected, this leaf spring 93
It functions to urge S in the ejection direction. Also case 9
A disk ejector 94 is provided in the rearward direction of 0. This ejector 94 is rotatably inserted into a shaft 95. In the embodiment shown in FIG.
4 are provided one on top of the other, each of which is located on the back side of each of the six slits S, and faces the rear end of the disk DS stored in each slit S (see Figure 12). )2 The case 90 has an inclined surface 96 at one corner (corner in the insertion direction). When the disc cartridge C is installed in the cartridge mounting part, the disc pressing piece 25b of the disc ejecting member 25 provided in the elevating part 60 faces the inclined part 96, as shown in FIG. The disk pressing piece 25b faces the rear end of the ejector 94.

Further, on the lower surface of the bottom cover 91, there is a filler plate 91 guided by the guide bin 1 (see FIGS. 2 and 3).
a, and a lock recess 91b into which the lock protrusion 2b of the lock member 2 is inserted (see FIG. 11).

Next, the operation of the disc changer will be explained, focusing in particular on the cartridge eject operation.

A disk DS is stored in each slit S of the disk cartridge C, and the plurality of disks DS
The disk cartridge C containing the disc cartridge C is mounted in the cartridge mounting section in the unit Y.

When the cartridge C is pushed into the cartridge mounting portion, the groove 91a (see FIG. 11) formed in the bottom cover 91 of the cartridge C is inserted into the cartridge table 30.
It is guided by the upper guide bin 1, and both sides of the lower end of the cartridge C are guided by guide pieces 30a and 30b at both edges of the cartridge table 30.

When the cartridge C is inserted, the tip of the cartridge C hits the pressing piece 6C of the second sliding lever 6 protruding from the notch 30d, as shown in FIG.
The second sliding lever 6 is pushed in the m direction by the insertion operation. As shown in FIGS. 9A and 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. Note that the first pressed piece 4f provided on the second sliding lever 4 pushes the first drive bin 112a, thereby causing the eject lever 11 to rotate counterclockwise. When the inserted cartridge C pushes the first sliding lever 4 and the second sliding lever 4 connected thereto by a spring 7 a certain distance in the m direction, the first sliding lever 4 is The pressing portion 4d that has been pressed is removed from the driving piece 2C of the locking member 2, the locking member 2 is driven counterclockwise by the force of the coil spring 3, and the locking protrusion 2b is moved against the cartridge table 30.
protrude upwards. The lock protrusion 2b is connected to a lock recess 9 formed in the bottom cover 91 of the cartridge C.
1b. In other words, the cartridge C is locked in a state where it is inserted into the proper position within the cartridge mounting portion.

Furthermore, since the inclined guide 4e of the first sliding lever 4 comes into contact with the drive piece 2C of the locking member 2, the first sliding lever 4 is locked by the biasing force of the spring 8 so that it cannot return to the β direction. . In addition, in the above-described cartridge insertion operation, when the cartridge C is pushed in with a strong force, that force acts on the second sliding lever 6, but in this case, the first sliding lever 4 and the second sliding lever 6 is absorbed by stretching of the spring 7.

Further, the loaded disc cartridge C is in a state where its disc ejection port side faces the disc playing section E.

Next, the performance operation will be explained.

When a desired disc in the disc cartridge C is to be played, a search is first made for the disc to be played. This search operation is performed by synchronously rotating the lifting screws 52 of each lifting mechanism 50 by a drive mechanism provided under the bottom plate 34 of the unit Y. Due to the rotational movement of each of the lifting screws 52, the lifting movement section 60 shown in FIG. 4 moves up and down within the unit Y. The amount of movement of the drive mechanism provided on the lower side of the bottom plate 34 is detected by a sensor, and the height position of the lifting/lowering operation part 60 is recognized by the detection operation of this sensor. It is now possible to do so. That is, by recognizing the height position of the elevating/lowering portion 60, the elevating/lowering portion 60 can be opposed to a desired one of the slits S of the cartridge C. As shown in FIG. 7, when the search operation is completed, the elevating operation section 60 stops at a predetermined height position, and at this time, the pair of pull-out rollers 66 and 69 provided in the elevating operation section 60 move the cartridge. It faces the front of either slit S of C. Further, as shown in FIG. 12, the disc pressing piece 25b of the disc ejecting member 25 provided in the elevating part 60 is inserted into the slit S of the ejector 94 in the disc cartridge 90, where the pull-out rollers 66 and 69 face each other. Opposing the object located behind the

In this state, the motor M provided in the lifting/lowering operation unit 60 is started. At this time, the pinion gear 14 is driven by the motor M in the direction shown by i in FIG. 6, and the roller drive gear 65 is driven via the reduction gear group 64.
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 llb,
The drive gear 11 integrated with this is driven in the b direction. In the power conversion device 10, at this time, the drive gear 11 rotates in the direction b from the state shown in FIG. When pushed, the drive gear 11 meshes with the partial teeth 18a of the switching gear 18, and the switching gear 18 is driven in the direction a. Then, the switching gear 18 has rotated to the state shown in Fig. 5A.
The end B1 of the partial tooth 18a is disengaged from the drive gear 11, and power transmission is cut off.During this period, the rotation of the switching gear 18 causes the drive bin 21 to reciprocate the disk ejecting member 25. At this time, when the disk ejecting member 25 moves in the f direction, the disk pressing piece 2 of the disk ejecting member 25
5b presses the ejector 94 shown in FIG. This operation of the ejector 94 causes the disc DS to be ejected from the cartridge 90. At this time, the lifting operation section 60
Since the upper pull-out roller 66 provided at The rotational force of the delivery roller 66 causes the paper to be drawn out into the support table 71 in the lifting/lowering section 60 .

The motor M stops when the disk DS is completely housed in the elevating section 60. Note that during the movement of the pull-out roller 66 in the g direction at this time, the power converter 10
Now, the switching gear 18 has reached the state shown in FIG. 5A and is stopped.

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

Next, the operation of returning the played disc DS into the cartridge will be explained.

When the playback operation by the disk drive unit 40 is completed, the elevating operation section 60 rises and the lower pull-out roller 69
The disk DS is lifted by the support table 71 and the support table 71. On the way, the upper bowing roller 66 separates from the roller regulating piece 70, and the disk DS is held between the rollers 66 and 69. When the elevating unit 60 rises to the position of the predetermined slit S of the cartridge C (the slit from which this disk was pulled out) and stops, the elevating unit 60
Motor M inside starts. At this time, the pinion gear 14 is driven by the motor M in the direction g in FIG.

Therefore, the upper pull-out roller 66 rotates in one direction, and the disk DS is sent back into the slit S of the cartridge C from the elevating section 60. As shown in FIG. 12, when the disk DS is pushed into the slit S by a certain distance, the urging direction of the leaf spring 93 changes, and the disk DS is automatically pushed into the slit by the leaf spring 93. . Note that during the operation to return the disk DS, the drive gear 11 of the power conversion device 10 is driven clockwise (direction a) from the state shown in FIG. 5A, and the switching gear 18 is rotated counterclockwise (direction b). The state shown in FIG. 5B is reached. During this time,
The disk ejecting member 25 moves back and forth once by the drive bin 21, and the disk pressing piece 25b of the disk ejecting member 25 presses the ejector 94 inside the cartridge C inward of the case 90. Since the disk removing member 25 returns in the direction e when the disk DS is completely returned, there is no problem in the operation of returning the disk DS.

Next, the ejection operation of the cartridge will be explained.

When the cartridge C is to be ejected from the cartridge mounting portion, the elevating and lowering portion 60 is lowered to the lowest position shown in FIG. This lowest position is the same position as the lowered position of the elevating and lowering operation section 60 during the disk reproducing operation described above. At the lowermost position of the elevating operation section 60 shown in FIG. There is. Also the 9th
As shown in Figure A, the eject drive protrusion 25c formed on the disk ejection member 25 faces the driven arm 1lla of the ejector 111.

When the operation for ejecting the cartridge is performed, the motor M in the lifting/lowering section 60 is started, and the above-mentioned cartridge C is started.
The power conversion device l is the same as the ejection operation of the disk DS from
O causes the disk ejecting member 25 to move back and forth once. However, at this time, since the disc pressing piece 25b is located below the cartridge C, the disc pressing piece 25b misses the lower side of the cartridge C, and the ejector 94 inside the cartridge is not pressed. When the disk ejecting member 25 moves in the f direction in this way, as shown in FIG. 9A, the eject lever 1
The first pressed piece 4f is pushed by the eleven first drive bins 112a, and the first sliding lever 4 is pushed in two directions. At this time, since the distance Ll between the center of rotation (shaft 113) of the eject lever 111 and the point of power application (first drive bin 112a) is short, a large pushing force Fl acts on the first sliding lever 4. . Due to this pushing force, the inclined guide 4e provided on the first sliding lever 4 rides on the drive piece 2C of the locking member 2, and the drive piece 2C is pushed by the pressing piece 4d.
is pushed downward, the lock member 2 is driven clockwise, the lock protrusion 2b is retracted from the cartridge table 30, and the disk cartridge C is unlocked. Further, the first sliding lever 4 and the second sliding lever 6 are pushed in two directions by the pushing force F1 and the spring 8, and the cartridge C is ejected by the pressing piece 6c of the second sliding lever 6. However, as shown in FIG. 9B, since the eject lever 111 is largely rotated clockwise due to the movement of the cartridge ejection member 25 in the f direction, the second driving bin 112b is moved to the second position of the first sliding lever 4. It hits the pressed piece 4g of No. 2, and presses it at F2.
The force will push it out in the β direction. At this time, the point of action of the force F2 is farther from the center of rotation 113 than the distance LL of the point of action of the force Fl, so F2 is a weaker force than Fl. That is, since a large force is required to retract the locking member 2 by the inclined guide 4e of the first sliding lever 4, the first sliding lever 4 is driven by a large force Fl at this time, and the locking member 2 is locked. After this is released, the first sliding lever 4 is driven by a weak force F2. In this way, the drive bin 1 in which the first sliding lever 6 is provided on the eject lever 111
Since the cartridge C is pushed out to the end in the ε direction by the cartridge 12b, the cartridge C can be reliably ejected.

〔effect〕

As described above, according to the present invention, the eject lever driven by the power of a motor or the like sequentially presses the sliding lever by the first pressing engagement part and the second pressing engagement part, so that the locking of the cartridge is prevented. Until the cartridge is released and completely ejected, the cartridge is constantly pushed out by the power of a motor or the like. Therefore, even if the force of the spring that presses the sliding lever toward the insertion port is weak, the cartridge can be completely ejected.

Also, since the force of the spring that biases the sliding lever is weak,
There is less resistance when inserting the cartridge, making the loading operation easier.

In particular, the present invention allows cartridges to be reliably ejected when the disc changer is installed vertically and the cartridges are loaded from directly above.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the overall structure of a disc changer and a disc playback device integrated therewith, and FIG. 2 is a perspective view showing a cartridge mounting section and a disc playing section. , FIG. 3 is an exploded perspective view showing the structure of the cartridge ejecting device provided below the cartridge mounting section, FIG. 4 is a perspective view showing the elevating operation section (disk transfer mechanism), and FIGS. 5A and 5B. The figure is an enlarged front view showing each operation of the mechanism that drives the disc ejection member.
FIG. 6 is a plan view thereof, FIGS. 7 and 8 are enlarged front views of the device showing a state in which a cartridge is installed, FIGS. 9A and 9B are plan views showing each operation of the cartridge eject device, and FIGS. The figure is a perspective view showing a disk cartridge.
FIG. 11 is an exploded perspective view showing the disk cartridge upside down, and FIG. 12 is a plan view showing the operation of ejecting the disk 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, 1
8a... partial tooth, 20a, 20b... pressed protrusion,
21... Drive bin, 25... Disk ejection member, 2
5b...Disk pressing piece, 25c...Eject drive protrusion, C...Disk cartridge, D...Cartridge mounting section, E...Disc playing section, DS...
Disk, M...Motor, 40...Disk drive unit, 41...Turntable, 42...Optical pickup, 5o...Elevating mechanism, 60...Elevating operation unit (disk transport mechanism), 66.69... Disk pull-in roller, 80... Clamper.

Claims (1)

[Claims] 1. In a disc changer that is provided with a cartridge loading section into which a disc cartridge containing a plurality of discs is inserted, and a disc transport mechanism that selects and takes out a disc from the disc cartridge and guides it to a disc playing section. The cartridge mounting portion is provided with a cartridge table that guides the cartridge, and the cartridge table includes a lock member that is biased in a direction to fit into a lock recess formed in the disk cartridge, and a disk A sliding lever that is pushed by the cartridge when the cartridge is inserted and moves toward the back of the cartridge mounting section and is biased toward the cartridge insertion slot by a spring, and a sliding lever that is moved by the cartridge when it is inserted, and a sliding lever that is pushed by the cartridge and moved toward the cartridge insertion slot by a spring, and a sliding lever that is powered by the disk cartridge when it is ejected. The sliding lever is provided with a pressing part that retracts the locking member from the locking recess when moving toward the cartridge insertion opening, and the sliding lever is Between the lever and the eject lever, there is a first pressing engagement portion that presses the sliding lever toward the insertion slot during the first stroke of rotation of the eject lever in response to the disk cartridge ejection operation; A cartridge ejecting device characterized by being provided with a second pressing engagement portion that pushes the moving lever in the direction of the insertion port.