JPH0650584B2 - Automatic spray device for disk player - Google Patents

Description

The present invention relates to an autochanger device for a disc player that automatically exchanges a disc to be played back, and more particularly to an autochanger device suitable for a compact disc player.

(B) Conventional Technology Conventionally, there has been known an automatic changer device for a disc player which automatically replaces a disc to be played back.
The autochanger device is convenient because it can continuously play back desired music without changing the disc manually and can play back continuously for a long time.

By the way, there is known a CD player which optically reads out a compact disc (CD) in which an information signal such as music information is recorded on a signal surface by a digital signal by using an optical pickup. The CD is easy to handle and has a diameter of 12 cm.
Since it is smaller than a conventional analog disc (record disc), the CD player is suitable for an automatic changer device in which a disc is selectively taken out for exchanging the disc to be reproduced or a plurality of discs are stored.

An automatic changer device for a CD player is disclosed, for example, in JP-A-60-52950. The automatic changer device of the above-mentioned publication uses a drawer mechanism that holds a disc in a disc storage case, inserts the disc storage case into the disc storage part, and slidably supports a transport mechanism supported in a vertically movable manner. After pulling out the disc storage case from the disc storage part,
The transport mechanism is lowered and moved to the player section for playing the disc. That is, since the autochanger device exchanges the disc to be played back by transporting the disc storage case in which the disc is stored, it is possible to replace the disc to be played back without the disc transport mechanism coming into direct contact with the disc. I can. Therefore, there is no danger of damaging the disc when the disc to be played is replaced.

(C) Problems to be Solved by the Invention By the way, the conventional autochanger device was mainly for business use, but recently, an autochanger device which can be easily enjoyed at home with several discs to be stored has begun to appear. The automatic changer device is disclosed in, for example, JP-A-59-36.
As disclosed in Japanese Patent No. 365, the above-mentioned Japanese Patent Laid-Open No. 60-52.
Like the autochanger device shown in 950,
It is a so-called cartridge type in which the tray containing the discs is installed in the disc storage part in advance and the disc storage part is manually set in a predetermined position. Therefore, there is also a demand for a front-loading type autochanger device in which the tray is slid to the front of the disc storage portion by the operation of an open / close button of a current stationary CD player so that the disc can be attached to and detached from the tray. Was there.

The present invention provides an automatic changer device for a disc player made in view of the above points.

(D) Means for Solving the ProblemsThe present invention provides a tray on which a disk is placed and a rack formed on the side surface, and a plurality of the trays stacked vertically in a state where the rack is viewed. An accommodating part for accommodating and a pinion gear meshing with the rack of the tray are rotatably supported, and have a moving member that supports the pinion gear movably in the horizontal direction and also has a guide part. A sliding mechanism that selectively slides horizontally from the storage section to above the turntable and a guide section of the moving member are abutted and provided on a side surface of the storage section according to a storage position of the tray. The cam portion includes a concave portion and a convex portion, and an elevating mechanism for elevating the sliding mechanism.

(E) Operation The present invention, when the tray stored in the storage portion by the sliding mechanism is selectively slid above the turntable and is moved up and down in order to select the tray to be slid, The cam portion and the guide portion of the moving member allow the pinion gear of the sliding mechanism to engage with the rack surface of the tray in the vertical direction.

(F) Embodiment FIG. 1 to FIG. 5 show an embodiment of the present invention, showing a plan view, a front view, a right side view, a left side view and a sectional view from the right side, respectively. In (1), a recess (1a) in which a compact disc (CD) (2) is placed and a notch formed in a portion traced by an optical pickup for reading a signal recorded on the CD (2). (1
b) a tray, ( 3 ) a sliding mechanism for sliding the tray in the horizontal direction, ( 4 ) a guide groove (5a) with which the right and left side surfaces of the tray (1) are engaged, respectively. (6a) is formed,
Guide members (5) and (6) for supporting the tray (1) and a clamp plate fixed to the guide members (5) and (6) and for clamping the CD (2) on the turntable (7) (8) and a support, ( 9 ) is a lifting mechanism for lifting the support ( 4 ),
( 10 ) is a turntable (7) for rotating the CD (2) and C
The player unit is provided with an optical pickup (11) for reading the signal recorded in D (2). The sliding mechanism ( 3 ) is fixed to the support body ( 4 ). The lifting mechanism ( 9 ) and the player section ( 10 ) are attached to a base (12).

A rack (13) is formed on the right side of the tray (1), and the tray (1) is stored in a storage section ( 18 ) provided in front of the base (12). Storage of the base (12) ( 1
As shown in FIG. 2, supporting pieces (18a) and (18b) for supporting the tray (1) are formed on the right and left inner walls, respectively, and the tray (1) is spaced from each other as shown in FIG. A plurality of sheets are stored in a slidably stacked state.

By the way, the mounting plate (14) on which the components of the sliding mechanism ( 3 ) are mounted is fixed to the support ( 4 ) and is connected to the center of the X-shaped first plate. It is supported by the first and second arms (15) and (16). Therefore, when the support body ( 4 ) is raised and lowered, the sliding mechanism ( 3 ) is raised or lowered according to the support body ( 4 ). Also,
The first and second pinion gears (20) and (21), which are the components of the sliding mechanism ( 3 ), are accommodated in the tray (1) accommodated in the accommodating portion ( 18 ) according to the ascending / descending position of the support ( 4 ). ) The rack (13) is selectively meshed. When the motor (22) serving as a drive source is rotated, the driving force of the sliding mechanism ( 3 ) is the first pulley (23), the belt (24),
2nd pulley (25), 1st gear (26), 2nd gear (2
7), the second pinion gear (21) through the third gear (28)
And the second pinion gear (21) is rotated.
Further, when the second pinion gear (21) is rotated, the driving force thereof is changed to the third pulley (29), the belt (30) and the fourth pulley (29).
It is transmitted to the first pinion gear (20) via the pulley (31), and the first pinion gear (20) is rotated. In this case, the first pinion gear (20) and the second pinion gear (21) use the same gear and are configured to rotate in the same direction at the same number of revolutions,
Also, the sliding displacement of the tray (1) causes the rack (13) to move first
When the second pinion gears (20) and (21) are out of mesh with one or the other pinion gear, the rack (13) is meshed with the other or one of the pinion gears. Therefore, the tray (1)
Is supported by the support body ( 4 ) from the disc attaching / detaching position in a state of being pushed out from the storage section ( 18 ) by the first and second pinion gears (20) and (21), and the CD on the tray (1) is
The center of (2) is slidably displaceable to a standby position located above the center of the turntable (7).

On the other hand, in the lifting mechanism ( 9 ), when the motor (32) as a drive source is rotated, the driving force is applied to the pulley (33) and the belt (3).
4) It is transmitted to the gear (38) fixed to the shaft (37) via the pulley (35) and the worm gear (36), and the shaft (37) is rotated. When the shaft (37) is rotated, the first and second drive gears (39) and (40) fixed to both ends of the shaft (37) are rotated. The first drive gear (39) is meshed with a gear portion (41a) provided on a first rotating body (41) arranged inside the right side surface of the base (12), and the second drive gear (40). Is meshed with a gear portion (42a) provided on the second rotating body (42) arranged inside the left side surface of the base (12). The first and second rotating bodies (41) and (42) are guide members for the support body ( 4 ).
Tongue pieces (5b) integrally formed on both ends of (5) and (6), respectively.
And (6b) are rotatably connected respectively. Therefore, when the first and second drive gears (39) and (40) are rotated, the support body ( 4 ) is raised and lowered by the first and second rotating bodies (41) and (42). Then, the support body ( 4 ) is raised or lowered according to the rotation directions of the first and second drive gears (39) and (40).

Next, the operation of the above-mentioned autochanger device will be described while showing the positional relationship of the tray (1) using the schematic diagrams shown in FIGS. 6 (a), (b), (c) and (d). To do.

When the tray (1) stored in the storage section ( 18 ) in the state shown in Fig. 6 (a) is slid horizontally, the elevating mechanism ( 9 ) is moved according to the height of the sliding tray (1). ), Sliding mechanism
( 3 ) is moved up or down so that the first pinion gear (20) is meshed with the rack (13) of the desired tray (1). Then, by driving the sliding mechanism ( 3 ) and rotating the first pinion gear (20), the tray (1) can be slid forward or backward depending on the rotation.

When the tray (1) is slid forward, as shown in FIG. 6 (b), the tray (1) is displaced by a predetermined amount from the storage part ( 18 ) to the disc attaching / detaching position protruding forward. The displacement of the tray (1) is regulated, and the driving of the sliding mechanism ( 3 ) is stopped.

On the other hand, if the tray (1) is slid backward,
When (1) is displaced a predetermined amount to the rear of the storage section ( 18 ), the rack (13) of the tray (1) comes to mesh with the second pinion gear (21) from the rear end. The tray (1) displaced rearward is supported by the guide members (5) and (6) of the support body ( 4 ) so as to be slidably displaced in the horizontal direction. Therefore, even if the rack (13) is disengaged from the first pinion gear (20) by displacing the tray (1) backward, the tray (1) keeps the horizontal state and continues sliding backward. To be done. And
As shown in FIG. 6 (c), the tray (1) is slidably displaced to a standby position where the center of the CD (2) on the tray (1) is located above the center of the turntable (7). And sliding mechanism ( 3 )
The driving of the tray (1) is stopped, and the sliding of the tray (1) is stopped.

Therefore, the desired tray stored in the storage section ( 18 ) is
(1) can be freely slid between the disc mounting and demounting positions.

Further, when the tray (1) displaced to the standby position is lifted / lowered, the lift mechanism ( 9 ) is driven to displace the support ( 4 ). As mentioned above, the tray (1) displaced to the standby position
Because being supported by the guide members of the support (4) (5) and (6), the lifting of the tray (1) is performed by displacing the support (4). Here, the CD on the tray (1)
When displacing the tray (1) to the reproduction position at the lowest point in order to reproduce (2), the lifting mechanism ( 9 ) is driven to rotate the first and second rotating bodies (41) and (42). Lower the support ( 4 ). When the tray (1) descends due to the lowering of the support ( 4 ), the turntable (7) eventually comes into contact with the CD (2) through the notch (1b) of the tray (1), The CD (2) placed on the tray (1) is placed on the turntable (7) as indicated by the broken line in FIG. 5, but the tray (1) is further lowered. Then, as shown in FIG. 6 (d), when the tray (1) is lowered to the reproduction position at the lowest point, the driving of the lifting mechanism ( 9 ) is stopped and the lowering of the support body ( 4 ) is stopped. It is made to be done. In this state, the tray (1)
Is separated from the CD (2), and the CD (2) is pressed onto the turntable (7) by a chucking member (43) provided on the support ( 4 ). Therefore, the CD (2) can be rotated by rotating the turntable (7) while the tray (1) is displaced to the reproduction position.

On the other hand, when the tray (1) displaced to the reproduction position is moved upward to return to the storage position, the support ( 4 ) is lifted by driving the elevating mechanism ( 9 ), but at this time, the support ( 4 ) is moved. The detection element (44) attached to the support ( 4 ) detects the location where the tray of the storage ( 18 ) is not stored.
Make a rise. Then, the rise of the support ( 4 ) proceeds,
When it is detected that the height of the tray (1) matches the height of the storage part ( 18 ) where the tray is not stored, the lifting mechanism ( 9 ) is stopped and the support ( 4 ) is stopped. Is designed to stop rising. Therefore, in this state, by driving the sliding mechanism ( 3 ) and rotating the second pinion gear (21) counterclockwise in FIG. 1, the tray (1) supported by the support ( 4 ) is moved. Can be stored in the storage section ( 18 ).

That is, by appropriately driving the sliding mechanism ( 3 ) and the lifting mechanism ( 9 ), the desired tray (1) can be selectively displaced to the disc loading / unloading position and the reproducing position.

Therefore, the CD (2) placed on the desired tray (1) can be arbitrarily reproduced and can be arbitrarily replaced.

By the way, the first pinion gear (20) is rotatably supported on the first rotating member (51) which is rotatably supported by the mounting plate (14), and at the same time, the mounting plate (14) and the first rotating member are rotated. It is biased in the direction of arrow A by a spring (50) stretched between the member (51).

On the other hand, the second pinion gear (21) is pivotally supported on the second rotating member (52) pivotally supported by the mounting plate (14). A pin (53) is formed on the second rotating member (52), and the tension of the belt (30) is kept above a certain level by the biasing force applied to the pin (53). The rotational force applied to the second pinion gear (21) is surely transmitted to the first pinion gear (20).

Further, as shown in FIG. 3, the base (12) has a sliding mechanism.
( 3 ) First or second pinion gear (20) or (21)
Slides on the side surface of the storage section ( 18 ) facing the first and second pinion gears (20) and (21), respectively, so that the gear meshes with the rack (13) formed on the tray (1). Hole (6
4) and (65) are drilled. Especially sliding holes (64)
Is formed with holes as many as the number of trays (1) that can be stored in the storage section ( 18 ). From the respective holes of the sliding holes (64), as shown in FIG. The rack (13) formed on the tray (1) housed in the part ( 18 ) is looking into it. Further, a cam portion (66) composed of a concave portion and a convex portion is formed next to the sliding hole (64), and the concave portion is located at each hole of the sliding hole (64). That is, it is formed corresponding to the storage position of the tray (1). And
The cam (66) has a protrusion (6) of the first rotating member (51).
2) is in contact with the first rotating member (51) and the spring (5
0) urges in the direction of arrow A. Therefore, since the protrusion (62) holds the state of being in contact with the cam portion (66), the protrusion (62) serves as a guide portion of the first rotating member (51), and the protrusion (62) moves in accordance with the elevation of the sliding mechanism ( 3 ). It moves along the concave and convex portions of the cam portion ( 66 ). Therefore, when the support body ( 4 ) is raised or lowered to raise or lower the tray (1), the first rotating member (51) causes the cam portion (66) to move about the shaft (54). It rotates so as to be displaced in the horizontal direction according to the concave portion and the convex portion. As a result, the first pinion gear (20) rotatably supported by the first rotating member (51) matches the height of the tray (1) stored in the storage section ( 18 ) every time the tray (1) )
The first pinion gear (20) does not hinder the vertical movement of the support body ( 4 ) when the support body ( 4 ) is moved up and down. The first pinion gear (20) and the rack (13) of the tray (1) are surely engaged with each other.

(G) Effect of the Invention As described above, the automatic changer device for the disc player according to the present invention supports the pinion gear for driving the tray on the moving member so that the pinion gear can approach and separate from the rack surface of the tray. A cam portion is provided on the side surface of the storage portion, and a guide portion that comes into contact with the cam portion in a state where a biasing force is applied is provided on the moving member. Therefore, a sliding mechanism for selecting a tray to be slid. When the is moved up and down, the pinion gear is displaced according to the unevenness of the cam part, and the pinion gear can be sequentially meshed with the rack of the tray stored in the storage part as the sliding mechanism moves up and down. When the sliding mechanism is displaced to the position of the tray to be moved, the pinion gear can be engaged with the tray rack at the same time.
It is possible to reliably and smoothly perform a series of operations for sliding the tray following the lifting operation of the sliding mechanism.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a front view thereof, FIGS. 3 and 4 are right and left side views of the autochanger device of FIG. 1, and FIG. Sectional drawing from the right side of the autochanger apparatus of FIG. 1, FIG.
(A), FIG. 6 (b), FIG. 6 (c) and FIG. 6 (d) are explanatory views showing the respective positional relationships of the trays of the front loading type auto changer device, and FIG. 7 is a view of the present invention. It is a perspective view which shows a main part. (1) …… Tray, ( 3 ) …… Sliding mechanism, ( 4 ) …… Support, ( 9 )
...... Lifting mechanism, ( 10 ) …… Player part, (12) …… Base, (13) …… Rack, ( 18 ) …… Storage part, (20) ……
1st pinion gear, (51) ... 1st rotation member (moving member), (62) ... protrusion (guide part), (66) ... cam part.

Claims (1)

[Claims] 1. An automatic changer device for a disc player, wherein a tray is selectively pulled out from a plurality of trays on which discs are respectively placed, and the disc placed on the pulled-out tray is reproduced.
A plurality of sheets are vertically stacked and stored, and a storage section (18) having a hole (64) for exposing the rack (13) formed on the side surface of each tray (1); A pinion gear (20) for slidingly driving the tray (1) is provided which meshes with the rack (13) and is supported so as to be able to move up and down so as to select the tray (1) driven by the pinion gear (20). A sliding mechanism (3), an elevating mechanism (9) that drives the sliding mechanism (3) to elevate and lower, and a component of the sliding mechanism (3), in which the pinion gear (20) is pivotally supported. In addition, the moving member (51) supported so as to be movable in the vertical direction with respect to the rack (13) surface of the tray (1) stored in the storage section (18), and the rack of the tray (1) ( 13) a spring member (50) for urging the moving member (51) in the plane direction, and the spring member (50) A guide portion (6) provided on the moving member (51) so as to project in the urging direction.
2) and a concave portion and a convex portion provided on the side surface of the accommodating portion (18) so that the guide portion (62) abuts, and the guide portion (62) abuts against the concave portion. The pinion gear (20) to the tray (1) rack (1
In order to bring the pinion gear (20) into contact with the rack (13) of the tray (1) by bringing the guide portion (62) into contact with the protrusion, An automatic changer device for a disc player, which is provided with a cam portion (66).