JP3516675B2 - Disc player - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention moves a tray.
The present invention relates to a disc player having a mechanism. [0002] Driving force generated from a driving source such as a motor
To the tray that holds the disc,
Stored in player housing or player housing
So-called auto-loading disc that protrudes outside the
A player is being developed. [0003] The object of the present invention is to
It can be applied to auto loading disc players like
Switch the driving force to other driven members to the tray
To provide a disc player with a mechanism
You. [0004] A disk drive according to the present invention is provided.
The layer includes a tray for holding a disc, and the tray.
A first driven extending in the direction of movement of the tray for movement
A gear and a second driven gear different from the first driven gear
And a drive gear meshing with the first and second driven gears;
A motor for driving the drive gear, and the first driven gear
And a cam groove formed integrally with the cam groove and slidably contacting the cam groove
The pin and the other driven gear interlock with the movement of one driven gear.
A mechanism for moving a dynamic gear, wherein the first and second driven
The gear has a meshing position where the gear meshes with the drive gear, and a non-meshing position.
Movable within the range including the non-meshing position
And the mechanism has the pin and the cam groove,
The pin receives the action of the driving force generated by the motor.
And the action of the pin and the cam groove causes the pin to move.
The first driven gear is in a non-meshing position with respect to the driving gear;
The first and second driven gears
Are both in the meshing position, and the movement of the first driven gear
The second driven gear is moved from the meshing position to the non-meshing position in conjunction with
And the tray is moved to the first driven tooth.
It is characterized by moving along with the movement of the car. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a gear driving mechanism according to an embodiment of the present invention will be described.
The disk player including the will be described with reference to the accompanying drawings.
You. As shown in FIG. 1 to FIG.
The front of the housing 2, that is, the front panel 3,
Upper tray 8 carrying discs 5 and 6 to be played and
And lower tray 9 can project out of the player housing
As shown, a rectangular disk supply port 3 extending in the left-right direction
a is provided. However, the arrow Y direction is forward,
The arrow X direction is to the left. Arrow Z indicates the upper direction.
The disk 5 has a diameter of about 12 cm, for example.
The disk 6 has a diameter of about 8 cm.
It is. Both trays 8 and 9 are turntables to be described later.
Direction perpendicular to the disk carrying surface of the
Direction (arrow Z direction and the opposite direction)
And two large and two small discs 5 and 6 to be inserted
Circular recesses 8a, 8b, 9a, 9b are formed concentrically.
ing. In the vicinity of the disk supply port 3a, the disk supply
A pair of upper and lower doors 10 and 11 for closing the mouth swings
The trays 8 and 9 are provided freely so that the trays 8 and 9 can protrude and retract.
Open and close in synchronization with the work. Also, on the front panel 3
Do not operate the front loading disc player.
Switch group 13 is provided. As shown in FIGS. 4 and 5, the player how
Inside the jing 2, for example, a vertical
A chassis 15 is provided. Also, as shown in FIG.
The vertical chassis 15 is fixed on a horizontal chassis 16.
ing. As shown in FIGS. 2 and 4, on the horizontal chassis 16
Is provided with a turntable 17. FIG.
As shown in FIG.
Carriage 20 carrying an optical pickup including
Along the recording surface of the disc placed on the turntable 17.
The carriage is provided so as to be movable to
A carriage manual means (not shown) for moving the
Have been. Next, the upper tray 8 and the lower tray 9
Projection position and storage position on player housing 2
Guide drive means to guide and move to the playing position
explain about. The upper tray 8 and the lower tray 9
Are formed in substantially the same shape, and details thereof are shown in FIG.
It is shown in (b). As shown in FIG. 2 to FIG.
An upper plate 23 and a lower plate are provided on the left side of the sheet 15.
24, the upper tray 8 and the lower tray 9
At the right-hand end by one of the two plates
Parallel to the disk carrying surface 17a of the table 17 (FIG. 4)
Direction, in this case, the front-back direction (arrow Y direction and the opposite direction)
Direction). Upward play
7A and FIG. 7A,
(B) and FIGS. 8 (a) and 8 (b). For more information,
The plate 23 and the lower plate 24 have
Long holes 23a and 24a are formed along the upper tray.
A pair and a pair are protruded from the right end of the lower tray 9 and the lower tray 9.
The pins 8d and 9d are slidably engaged with the respective long holes.
It is. FIGS. 2 to 4, and FIGS.
So that the right side of the upper plate 23 and the lower plate 24
In the front and back direction (arrow Y direction and the opposite direction)
A pair of pins 23b and 24b which are separated from each other
And each of the pins is a crank formed on the vertical chassis 15.
A pair of upper and lower guide holes 26 and a lower guide of the front and rear of the shape
It is slidably fitted in the hole 27. That is, husband
Each along the upper guide hole 26 and the lower guide hole 27
So that the upper plate 23 and the lower plate 24 move
It has been done. Upper guide hole 26 and lower gear
The id hole 27 is formed as a whole with the turntable 17 (see FIG. 4).
(Not shown) during the rotation in a plane parallel to the direction of the rotation center axis.
Along the plane perpendicular to the axis, ie in this case front and back
Direction (the direction of the arrow Y and the opposite direction). Details
Specifically, the upper guide hole 26 and the lower guide hole 27
At the deep or rear end, the turntable 17
(FIG. 4) along a plane perpendicular to the disk carrying surface
First extending portions 26a, 27a each extending;
At a position shallower than the deepest part, extend parallel to the first hanging part
Second hanging portions 26b and 27b. These
The first hanging parts 26a, 27a and the second hanging parts 26b, 27b
In the front-back direction (arrow Y direction and the opposite direction)
The first flat portions 26c and 27c extend. Ma
Also, the disk is continuously supplied to the second hanging portions 26b and 27b.
For projecting the tray in the direction approaching the mouth 3a, that is, extending forward.
It has the second flat portions 26d and 27d. As shown in FIG. 2 to FIG.
Vertical chassis 1 with plate 23 and lower plate 24
5 as a driven gear having a rectangular plate shape so as to sandwich
A rack 29 and a lower rack 30 are arranged. The figure
9 (a) to 9 (c) show details of the upper rack 29,
FIGS. 10A to 10C show details of the lower rack 30.
You. The upper rack 29 and the lower rack 30 are front and rear, respectively.
Reciprocating in the direction (arrow Y direction and the opposite direction)
Attached to the receiving portion 15a of the vertical chassis 15.
You. The above-described upper plate 23 and lower plate 24
Pins 23b and 24b protruding from the outer side face are vertically
Upper guide hole 26 and lower guide hole 2 formed in
7, the left side of the upper rack 29 and the lower rack 30
Slidable on mountain-shaped cam grooves 29a, 30a formed on the surface
Is engaged. 9 (c), 10 (c), 11 and
As shown in FIG. 12, the mountain-shaped cam grooves 29a, 30a
A pair of continuously inclined portions 29b, 29c, 30b, 3
0c. Each inclined portion is formed on the vertical chassis 15.
Of the upper guide hole 26 and the lower guide hole 27
For the lower portions 26a, 27a and the second hanging portions 26b, 27b
At a predetermined angle. That is, the upper rack 29 and the lower
The rack 30 moves forward and backward (the direction of the arrow Y and the opposite direction).
By moving, the upper plate 23 and the lower plate described above are moved.
The rate 24 is connected to the upper guide hole 26 and the lower guide hole 27.
Each of the mountain-shaped cam grooves 29a, 30a so as to move along
Is formed. As shown in FIGS. 11 and 12, the lower rack
30 are both inclined portions 30 forming a mountain-shaped cam groove 30a.
In the vicinity of the continuation of b and 30c, the swinging member 32 has a virtual center axis.
It is mounted so as to be swingable about 32a. Shaking
A point 32b is formed at the free end of the moving member 32.
In addition, the pointed portion is formed in a continuous portion of the two inclined portions 30b and 30c.
The portion 32b may project. In addition, a restoring force is applied to the swing member 32.
A spring member 32c to be provided is provided. Vertical chassis
Reference numeral 15 denotes a linear cam member with which the swing member 32 slides.
33 is along the moving direction of the upper rack 30, that is,
Extending in the direction (arrow Y direction and the opposite direction)
Have been. As shown in FIG.
Has a notch 33a, and according to the movement of the upper rack 30,
Acting as a swing member driving means for swinging the swing member 32
Use. The linear cam member 33 and the spring member 32c
The swing member 32 includes a pin of the lower plate 24.
24b is moved into the mountain-shaped cam groove 3 with the movement of the lower rack 30.
0a is selected as one of the pair of inclined portions 30b and 30c.
Guidance means for uniformly guiding is configured. That is,
Without such a guide means, only the mountain-shaped cam groove 30a is used.
To move the pin 24b along the lower guide hole 27
Then, for example, forward (in the direction of arrow Y) of the lower rack 30
At the time of movement, one inclined portion 30b of the mountain-shaped cam groove 30a.
Of the lower guide hole 27 in the first hanging portion 27a
The pin 24b is moved up to the first flat position.
Due to the action of the other inclined portion 30c without shifting to the flat portion 27c,
And descend again along the first hanging part 27a again
U. The above-described guide means is provided as the lower rack 30 moves.
This prevents the pin 24b from moving backward.
For example, when the lower rack 30 moves forward,
24b is formed with one inclined portion 30b of the cam groove 30.
Along the first hanging portion 27a of the lower guide hole 27
And when the ascent is completed, the rocking member 32
Will be blocked. In this state, the pin 24b is
Move horizontally forward along the first flat portion 27c of
Thus, the action of the other inclined portion 30c of the mountain-shaped cam groove 30 is used.
And descends in the second hanging portion 27b. After this, the pin 24b
Moves horizontally in the second flat portion 27d for projecting the tray. Shaking
Such guide means, including the moving member 32, are located on the lower rack 30.
In addition, the upper rack 29 is similarly provided. As shown in FIG. 3, the upper rack 29 and the lower
The rack 30 is connected to a single pinion 35 as a drive gear.
They can be movably engaged with each other in opposite directions. Pinion 35
Is transmitted through a reduction mechanism 36 composed of a plurality of gears and the like.
And rotated by the motor 37. FIG. 9 (a) and
As shown in FIG. 10A, the upper rack 29 and the lower rack
Toothless portions 29e, 30e are formed at each front end of the
ing. 9 (a) and 9 (b) and FIGS. 10 (a) and 10 (b)
As shown, the right side of the upper rack 29 and the lower rack 30
The cam grooves 29f and 3 cover almost the entire length of each rack.
0f is formed. As shown in FIG.
Cam follower 40 always engaged with the rubber grooves 29f and 30f
And fixed to the vertical chassis 15
The sub-chassis 41 in the up-down direction (arrow Z direction and
(Opposite direction).
FIGS. 13A and 13B show details of the cam follower 40. FIG.
Is shown. The cam follower 40 includes a pair of upper and lower pins 40a, 4
0b, and each pin is in sliding contact with each cam groove 29f, 30f.
are doing. This cam follower 40 is in sliding contact with the above
The upper rack 29 and the cam grooves 29f, 30f
When one of the lower racks 30 reaches a predetermined position
To start the other to the meshing position with the pinion 35
Means are configured. That is, for example, the lower rack 3
0 is in mesh with pinion 35 due to the missing tooth
When the upper rack 2 is in mesh with the pinion 35,
9 moves by a predetermined distance, the above-mentioned cam grooves 29f, 3
0f and the cam follower 40 act on the lower rack 3
0 is moved forward by a predetermined distance (in the direction of arrow Y).
The lower rack 30 meshes with the pinion 35 to
The direction of movement of the rack 30 is opposite to the direction of movement of the upper rack 29.
It is started in. In addition, the upper rack 29 is a tooth missing portion.
Even when the pinion 35 is not engaged with the pinion 35 due to 29e
Similarly, and conversely, the upper rack 29 or the lower
One of the racks 30 is pinioned according to the movement of the other.
To be in a non-meshing state with the pin 35. [0013] Because of this configuration, a pair of driven teeth is provided.
The upper rack 29 and the lower rack 30 as a car are
Single without separate drive source for each rack
Motors 37 drive in opposite directions or selectively
You can move. As shown in FIGS. 2 and 4
The right and left ends of the upper tray 8 and the lower tray 9
Moveable in the direction (arrow Y direction and the opposite direction)
Of the upper plate 23 and the lower plate 24
Gears 43 and 44 are provided on the lower surface, respectively. Figure
2 and FIG. 5, the left side of the vertical chassis 5 is
Gears 45, 46 and 47 are provided.
44 is on the upper plate 23 and the lower plate 24, respectively.
In accordance with the downward movement, it engages with one of the rack portions. Ma
When the upper plate 23 and the lower plate 24 are moved up and down.
Gears 43 and 44 to shift between the racks.
Transfer rack portions 49 and 50 are formed. Figure
2, as shown in FIG. 4 and FIG.
The lower surface of the lower tray 9 faces the player housing 2.
The projecting storage direction, that is, the front-back direction (the arrow Y direction and its
(In the opposite direction).
Each of the gears 43 and 44 described above is
It also meshes with the rack parts 8f, 9f. The gears 43 and 44 and the rack 4
5, 46, 47, 8f, 9f, the transition rack section 49 and
50, the upper plate 23 and the lower plate 2
4 according to the movement of the upper tray 8 and the lower tray 9
Twice the moving speed of each plate relative to the plate
A double-speed mechanism for moving by means of. Above
Double speed mechanism, pinion 35, motor 37 and reduction mechanism
36, a drive source for rotating the pinion,
Rack 29 and lower rack 30, upper plate 23 and
To the lower plate 24 and its associated peripheral components
Therefore, the upper tray 8 and the lower tray 9 are
Along the upper guide hole 26 and the lower guide hole 27 of the sheet 15
The driving means is configured to be moved. As described above, the upper tray 8 and the lower tray
A9 has its right end on the upper plate 23 and the lower
Supported and guided through the door 24. On the other hand, FIG.
As shown in FIG. 4, these upper tray 8 and lower tray 9
The left end of each is moved in the front-rear direction (arrow
(Y direction and opposite direction)
Have been. The movable supporting member 53 is mounted on the horizontal chassis 16.
Up and down direction (arrow Z direction) by the fixed guide member 54
And the opposite direction)
I have. FIGS. 14A to 14C show the movable supporting member 53.
The details are shown, and FIGS.
Show details. As shown in FIG. 4 and FIGS.
The upper tray 8 and the lower tray 8
The right and left ends of the tray 9 are slidably fitted with linear guides.
Id grooves 53a and 53b are formed. In addition, movable
Three pins 53c protrude from the left side surface of the holding member 53,
The guide member 54 is moved vertically (in the direction of the arrow Z and in the opposite direction).
Three guide holes 54 formed to extend in
a, 54b, and 54c are slidably fitted with the respective pins.
Accordingly, the movable supporting member 53 can move up and down. As shown in FIGS. 2 and 3, the vertical chassis 1
An interlocking member 56 is disposed between the guide member 5 and the guide member 54.
And it is turntaped by the support pin 56a.
Of the disk 17 in a plane perpendicular to the disk carrying surface.
Moveably attached to the vertical chassis 15 and the guide member 54
Have been. FIGS. 16A and 16B show details of the interlocking member 56.
Show details. Pins 56 are provided on the left and right free ends of the interlocking member 56.
b, 56c are projected, and the right pin 56b is
The plate 24 is placed in the front-rear direction (the direction of the arrow Y and the opposite direction).
Slidably fits into a long hole 24d formed to extend
are doing. In addition, the left pin 56c is the movable carrier described above.
It is fitted and inserted into a long hole 53d formed in the member 53.
You. That is, the lower plate supported by the lower plate 24
As it moves up and down with the ray 9, the interlocking means
The movable support member 53 is slidably contacted with the movable support member 53 via the member 56.
It moves up and down with the
You. In this embodiment, the upper tray 8 and the lower tray 8
Support member movably supporting each left end of the side tray 9
Is composed of a movable carrying member 53 and a pin 56c. Also possible
The moving support member 53 is omitted, and the pin 56c is moved to the upper tray 8 and the lower
The pair of pins 56c are provided for each of the
Each of the trays may be directly carried. In addition,
56c may be formed integrally with the interlocking member 56 described above.
With such a configuration, a plan for guiding the movable supporting member 53
The inner member 54 becomes unnecessary and can be reduced. The interlocking means, the movable supporting member 53 and the pin
, A guide member 53, and other options.
A vertical chassis 15 serving as an internal member;
The upper tray 8 and the lower guide hole 27
And the above-mentioned driving means for moving the lower tray 9 respectively.
Therefore, each of the upper tray 8 and the lower tray 9 is played.
Position and storage position with respect to the
Guide driving means for guiding and moving to the playing position
Have been. The guide driving means includes an upper tray 8 and a lower
When one of the trays 9 is at the playing position
Position the other tray in either the storage position or the protrusion position.
Close. Further, the guide drive means, the upper tray 8 and the lower
The tray to be played is carried by the tray 9
This is placed on the turntable 17 in the player housing 2.
And a disk transport mechanism for transporting the disk to the disk. Here, the upper portion formed on the vertical chassis 15
The guide hole 26 and the lower guide hole 27 will be described in detail.
As described above, the upper guide hole 26 and the lower guide hole 27
Are the first hanging parts 26a, 27a and the second hanging parts 26b, 2
7b has two hanging parts. That is, for example
If the upper guide 8 is in the first hanging portion 26 of the upper guide hole 26,
a, the first flat portion 26c continuous with the first hanging portion and the second
The turntable 17 is moved along the hanging portion 26b sequentially.
When the other lower tray 9 moves while avoiding
The second hanging portion 27b of the lower guide hole 27 in conjunction with
The first flat portion 27c and the first hanging portion 2 which are continuous with the second hanging portion
7a while moving around the turntable 17 sequentially.
It is configured to operate. In this way, two
As one of the trays 8 and 9 is moved up and down,
At least a part of both trays because it moves up and down
In the plane parallel to the disk carrying surface of the turntable 17
Even if they overlap each other in the
Do not interfere with each other.
This minimizes the size of the player in the plane.
It has been obtained. Also, as is apparent from FIG.
The lower end of the first hanging portion 26a of the hole 26 is
The first lower portion of the lower guide hole 27 which is located below the lower end.
The lower end of 27a is higher than the lower end of second hanging portion 27b.
You. With this configuration, two trays 8 and
9 disk supply port 3a (shown in FIGS. 1, 2 and 5)
Up and down direction in the vicinity (arrow Z direction and the opposite direction)
The two trays are separated by an appropriate distance.
And protruded and stored with respect to the player housing 2 respectively.
You. Next, by the above-described disk transport mechanism,
Disk transported and placed on turntable 17
The disk clamp mechanism that clamps
You. As shown in FIG. 2 and FIG.
A flat supporting member 58 is disposed above the
Similarly to the moving member 56, the turn pin is
In the plane perpendicular to the disk carrying surface of the bull 17
Swingably attached to vertical chassis 15 and guide member 54
Have been. FIGS. 17A and 17B show the supporting member 5.
8 is shown below. As shown in FIG. 4 and FIGS. 17 (a) and (b)
As described above, the turntable 1 is attached to the free end of the support member 58.
7 with the disc placed on it facing the turntable
A disk-shaped pressing member 59 for pressing is rotatably mounted.
It is attached. The disc pressing force is controlled by the pressing member 59.
To the magnet 59a and the turntable 17
The magnetic material (not shown) fixed to the
Can be obtained. A pair of left ends of the free ends of the support members 58
Rollers 58b and 58c are provided.
The upper plate 23 (FIGS. 2, 3 and 4)
Engagement surfaces 23e, 23 formed on the upper edge
f (shown in FIG. 7 (b)). That is, this
The upper plate 23 is moved upward together with the upper tray 8 carried thereon.
When moving down, the pair of rollers 58b and 58c are appropriately pressed.
This causes the support member 58 to swing. See below
However, the upper plate as an engagement member with the support member 58
23 is supported in the first section of the vertical movement path
The first section is engaged with a roller 58b near the tip of the member 58.
Roller 58b and swing center in the second section different from
It is related to another roller 58c between the shaft and the support pin 58a.
Combine. As shown in FIG. 3, on the side of the vertical chassis 15
The upper rack 29 and the upper sub-chassis 41
By detecting the position of the lower rack 30, the upper tray 8 and the lower tray 8 are detected.
Detection switches for detecting the position of the tray 9
61, 62 and 63 are juxtaposed in the front-rear direction.
You. The center detection switch 62 is connected to the upper rack 29 and the lower
Lower end of cam follower 40 provided between racks 30
Is actuated by contacting this. Also this cam
The other two cam followers 65 before and after the follower 40 and
66 are arranged, together with the cam follower 40,
Attached to the sub-chassis 41 so that it can reciprocate
Have been. FIGS. 18A and 18B show the cam follower 65.
FIG. 19 (a) and FIG.
The details of the lower 66 are shown. Tuck the detection switch 62 back and forth
The two detection switches 61 and 63 are provided with these cam followers.
It operates when the lower ends of 65 and 66 abut each other.
You. As shown in FIGS. 18 and 19, the cam follower
Pins 65a and 66a project from the left side of 65 and 66, respectively.
And the upper and lower racks 29 and 30 respectively
Sliding engagement with each of the formed cam grooves 29g and 30g
are doing. As a result, the cam followers 65 and 66 are
The upper rack 29 and the lower rack 30 are appropriately moved in accordance with the movement thereof.
Move down. Next, the front loading device having the above-described structure will be described.
The operation of the disk player is also shown in FIGS.
A brief description will be given with reference to FIG. As shown in FIGS. 1 to 3,
The upper tray 8 is projected out of the player housing 2 and
For example, a compact disk 5 (FIGS. 1 and
(Shown in FIG. 4). In addition, the protruding movement of the upper tray 8
The work follows the completely opposite process of the storing operation described below.
It will not be described in detail. Put the compact disk 5 on the upper tray 8
Once mounted, it is included in switch group 13 (shown in FIG. 1).
Press the loading button. Then, the motor 37 (FIG. 3)
), Which causes the pinion 35 to rotate.
The upper rack 29 is moved rearward as shown in FIGS.
(The direction opposite to the arrow Y direction). By this
The upper tray 8 is, as shown in FIGS.
Double the moving speed of the upper rack 29 by the action of the speed mechanism
Stored in the player housing 2 at the speed of
You. In the state shown in FIG. 20, the lower rack 30 is
The pinion 35 is not meshed with the pinion 35 by the tooth portion 30e.
Thus, the lower tray 9 is stationary at the playing position. Also on
When the side rack 29 reaches the position shown in FIG.
The lower rack 30 is moved a predetermined distance.
Is moved forward (arrow Y direction)
Mesh. Thereafter, the pinion 35 continues to rotate further,
The upper rack 29 and the lower rack 30 are shown in FIGS.
It moves as shown in FIG. FIG. 2 shows the movement of each rack.
8 to 32, the upper plate 23 and the lower plate
The rate 24 is an upper guide hole 26 and a lower guide hole 2 respectively.
Turntable 1 along each hanging part and flat part of 7
7 and the like, and move as shown in FIGS. 32 and 33.
The upper tray 8 is in the playing position and the lower tray 9 is
It is positioned at the delivery position. Also, the controller on the upper tray 8
Pact disk 5 is placed on turntable 17,
And it is clamped and used for performance. However, FIG. 28 and FIG.
29 shows the positions of the upper tray 8 and the lower tray 9.
Not in. The disc clamping operation will be described.
As the upper rack 29 moves as described above,
The upper plate 23 engaged with the pin 23b
It moves along the hole 26. As shown in FIG.
At the initial movement of the upward movement of the rate 23,
Plate is the main member of the disc clamp mechanism.
A roller 58b disposed near the tip of the holding member 58;
And push it upwards. This provides sufficient clamping
The release force is obtained, and the magnet 59a (see FIG. 17B)
Press) adhering to the turntable 17 due to the magnetic force shown in FIG.
The pressure member 59 easily separates from the turntable. this
Thereafter, as shown in FIG. 28 to FIG.
Is the swing of the support member 28 in front of the roller 58b.
It engages with the roller 58c disposed near the dynamic center axis.
And push it upwards. Therefore, the support member 58 is quickly raised.
Rocks towards you. Thus, already on the turntable 17
The clamp on the loaded disc is released and the disc is released.
The upper tray 8 and the lower tray 9 move as described above.
Thus, it is carried on the lower tray and returned. As shown in FIGS. 32 and 33,
Moves the upper tray 8 to the playing position and the lower tray.
Ray 9 has reached the storage position, but after that,
Eject button to eject tray 9
By pressing the lower tray 9 the player housing 2
Protrude out and replace the disc on the lower tray with a new one.
Can be exchanged. At this time, the upper tray 8
Is stationary at the playing position and is turned by the upper tray.
Performance of the compact disc transported on the table 17
Can be continued as it is. As shown in FIGS. 23 and 32,
On the upper tray 8 and the lower tray 9 located at the storage positions
Photosensor 71 as detecting means for detecting a disk
Is provided. Upper tray 8 and lower tray 9 perform
When in the playing position,
By performing casing, each of the tones at the playing position is
The presence or absence of a disc on the
When the tray protrudes out of the player housing 2
Is visually checked for the presence of a disc on each tray.
You. Therefore, only one photosensor 71 is provided.
On each tray at the playing position, the storing position and the projecting position.
You can check all the disks. In this embodiment, the upper plate 2
3 and the lower plate 24 are provided with pins 23b, 24b projecting therefrom.
Each of the mountain-shaped cam grooves 2 of the upper rack 29 and the lower rack 30
9a and 30a, each pin is inserted into the upper guide hole 26.
And moving along the lower guide hole 27,
Further, the pin is inverted at each hanging portion included in each guide hole.
The row is prevented by the swing member 32 (see FIGS. 11 and 12).
No. Not limited to this configuration, the configuration shown in FIG.
To prevent the pins 23b and 24b from moving backward.
Can be. That is, the first and second guide holes 26
2 hanging portions 26a, 26b and a first flat portion continuous therewith
26c and inclined with respect to the respective hanging portions and the first flat portion.
The inclined portion 26f is formed, and the lower guide hole 27 is formed.
Including the first and second hanging portions 27a and 27b and continuous with them
Between the first flat portion 27c and the hanging portions and the first flat portion.
An inclined portion 27f inclined to the portion is formed. Such inclination
By providing the inclined portions 26f and 27f, the pins 23
b and 24b are flat portions without going backwards
Transition smoothly. Further, as shown in FIG.
23b and 24b each have a slidable part that is slidably fitted to the outside
A pair of swing members 72 and 73 are provided and
It may be used instead of the moving member 32. As described above, according to the present invention, the tray
And a mechanism to switch the driving force to other driven members
A disc player can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a front loading disc player according to the present invention. FIG. 2 is a plan view of the internal structure of the front loading disc player shown in FIG. FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2; FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2; FIG. 5 is a view taken in the direction of arrows VV in FIG. 2; FIG. 6 is a plan view and a bottom view of the tray. FIG. 7 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 8 is a detailed view of components having an internal structure shown in FIGS. 2 to 5; FIG. 9 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 10 is a detailed view of the components having the internal structure shown in FIGS. 2 to 5; FIG. 11 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 12 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 13 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 14 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 15 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 16 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 17 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 18 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 19 is a detailed view of components having the internal structure shown in FIGS. 2 to 5; FIG. 20 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 21 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 22 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 23 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 24 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 25 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 26 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 27 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 28 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 29 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 30 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 31 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 32 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 33 is a view for explaining the operation of the front loading disc player shown in FIGS. 1 to 19; FIG. 34 is a view showing a modification of a part of the front loading disc player. [Description of Signs] 2 Player housing 3a Disk supply ports 5, 6 Disk 8 Upper tray 9 Lower tray 15 Vertical chassis 17 Turntable 20 Carriage 23 Upper plate 24 Lower plate 26 Upper guides 26a, 27a First hanging portions 26b, 27b Double hanging portions 26c, 27c First flat portion 26d, 27d Tray projecting second flat portion 27 Lower guide 29 Upper rack 29a, 30a Mountain-shaped cam grooves 29b, 29c, 30b, 30c Beveled portions 29e, 30e Tooth missing portion 30 Lower rack 32 Swing member 33 Cam member 35 Pinion 37 Motor 40, 65, 66 Cam follower 53 Movable carrying member 54 Guide member 56 Interlocking member 58 Support member 59 Press member 59 a Magnets 61, 62, 63 Detection switch 71 Photosensor

Claims (1)

(57) Claims: 1. A tray for carrying a disk, a first driven gear extending in the direction of movement of the tray for moving the tray, and a first driven gear. A different second driven gear, a driving gear meshing with the first and second driven gears, a motor for driving the driving gear, and a cam groove formed integrally with the first driven gear. A pin that slides on the cam groove, and a mechanism that moves the other driven gear in conjunction with movement of one driven gear, wherein the first and second driven gears are in mesh with the driving gear. And the mechanism is movable in a range including a non-meshing position that is in a non-meshing state, and the mechanism has the pin and the cam groove, and the pin has a driving force generated by the motor. It moves under the action, and moves by the action of the pin and the cam groove. When the first driven gear is shifted from the non-meshing position to the meshing position with respect to the driving gear, the first and second driven gears are both meshed with each other, and the movement of the first driven gear A disk player, wherein the second driven gear is moved from a meshing position to a non-meshing position in conjunction with the first driven gear, and the tray is moved with the movement of the first driven gear.