JP3403161B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
Make sure that the tray to be transported is
Disk drive with a drive mechanism for
You. [0002] 2. Description of the Related Art 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
Auto loading disc player
Tray drive mechanism that allows accurate tray movement
Is to provide a disk player having the following. [0004] DISCLOSURE OF THE INVENTION A disk drive according to the present invention is provided.
The player holds the disc (5) and
(2) Move forward and backward so that it protrudes and stored.
Tray (8) and driven gear moving in the front-rear direction
(29) and a driving gear (3) meshing with the driven gear.
5) a motor (37) for driving the drive gear;Previous
With respect to the front-rear direction provided integrally with the driven gear.
A cam groove (29f) including an inclined portion inclined byThe cam
Disc play with a pin (40a) that slides into the groove
In yaThe pin is different from the extending direction of the inclined portion.
The pin in sliding contact with the inclined portion
And the driven gear isProtruding from the player housing
In the direction in which
When the drive gear and the drive gear are in the meshed state from the non-meshed state.
And the driven gearReceives the driving force of the motor through
By openingWhether the tray is the player housing
It is characterized in that it moves in the direction in which it protrudes. [0005] [0006] DESCRIPTION OF THE PREFERRED EMBODIMENTS A gear driving mechanism according to an embodiment of the present invention will be described below.
The disk player including the will be described with reference to the accompanying drawings.
You. As shown in FIGS. 1 to 3, a player housing
The front part of the front panel 2, that is, the front panel 3,
Upper tray 8 and lower tray 8 carrying discs 5 and 6
So that the ray 9 can project out of the player housing,
A rectangular disk supply port 3a extending in the left-right direction is provided.
Have been. However, the arrow Y direction is forward, and the arrow X direction
The direction is to the left. Arrow Z indicates the upper direction. In addition,
The disk 5 is, for example, a compact disk having a diameter of about 12 cm.
The disk 6 is about 8 cm in diameter.
You. Both trays 8 and 9 are used for the turntable
Direction perpendicular to the disk carrying surface, that is,
Mark Z direction and the opposite direction).
Two large and small circles into which each disk 5 and 6 should be inserted
The recesses 8a, 8b, 9a, 9b are formed concentrically.
You. The disk supply port is provided near the disk supply port 3a.
A pair of upper and lower doors 10 and 11 for closing are swingable.
The trays 8 and 9 are provided with
Open and close synchronously. Also, on the front panel 3
Operate the front loading disc player
Switch group 13 is provided. As shown in FIGS. 4 and 5, the player how
In 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.
A carriage manual means (not shown) for moving the
Have been. Next, the upper tray 8 and the lower tray 9 are
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.
(B). As shown in FIG. 2 to FIG.
Upper plate 23 and lower plate
24, the upper tray 8 and the lower tray 9
At the right end by one of the two plates
Parallel to the disk carrying surface 17a (FIG. 4) of the table 17
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
Slots 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. 7 and 8 show FIGS.
The right side of the upper plate 23 and the lower plate 24
In the front-back direction (arrow Y direction and the opposite direction)
A pair of pins 23b and 24b projecting apart
Each of the pins is connected to a crank formed on the vertical chassis 15.
Upper and lower guide holes 26 and a pair of lower guides
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 guide hole 27 is formed as a whole with the turntable 17 (see FIG. 4).
(Shown) during rotation in a plane parallel to the direction of the rotation center axis.
Along the plane perpendicular to the mandrel, 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) downward along a plane perpendicular to the disk carrying surface
First extending portions 26a, 27a each extending and
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 extending in the direction approaching the mouth 3a, ie, forward
The second flat portions 26d and 27d are provided. As shown in FIG. 2 to FIG.
Vertical chassis 1 together with plate 23 and lower plate 24
5 as a driven gear having a rectangular plate shape so as to sandwich
And a lower rack 30 are disposed. 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 (direction of arrow Y and the opposite direction)
Attached to the receiving portion 15a of the vertical chassis 15.
You. The above-mentioned 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. The inclined portions are 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 back and forth (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 mountain-shaped cam groove 29a, 30a
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. Also, the restoring force is applied to the swing member 32.
A spring member 32c to be applied is provided. Vertical chassis
15 is 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
To use. The linear cam member 33 and the spring member 32c are
The swing member 32 includes a pin of the lower plate 24.
24b is moved along the movement of the lower rack 30,
0a to one of the pair of inclined portions 30b and 30c.
Guidance means for uniformly guiding is configured. That is,
Without providing 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 the 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 and the first flat
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-mentioned guide means is provided as the lower rack 30 moves.
This prevents the reverse movement of the pin 24b.
For example, when the lower rack 30 moves forward,
24b is formed with one inclined portion 30b of the mountain-shaped cam groove 30.
Along the first hanging portion 27a of the lower guide hole 27
And when the ascent is completed, the swinging member 32 moves backward.
Will be blocked. In this state, the pin 24b is connected to the lower guide hole 27.
Horizontally moves forward along the first flat portion 27c of
The action of the other inclined portion 30c of the mountain-shaped cam groove 30
And descends in the second hanging portion 27b. After this, the pin 24b
Moves horizontally in the tray protruding second flat portion 27d. 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
At the front end of the lock 30, toothless portions 29e, 30e are formed.
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 extend over substantially the entire length of each rack.
0f is formed. As shown in FIG.
Cam follower 40 which is always engaged with the rubber grooves 29f and 30f.
And fixed to the vertical chassis 15
In the vertical direction (in the direction of arrow Z 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 at 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 there is no upper rack 2 in mesh with the pinion 35
9 moves by a predetermined distance, the cam grooves 29f, 3
0f and the cam follower 40 act on the lower rack 3
0 is advanced by a predetermined distance (in the direction of the arrow Y).
As a result, 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 by 29e
Similarly, and conversely, upper rack 29 or 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 cars 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 meshes 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 is formed
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, 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
Drive means for moving the drive means. As described above, the upper tray 8 and the lower tray
A9 has its right end on the upper plate 23 and the lower
And is guided and supported 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 support member 53 is mounted on the horizontal chassis 16.
The guide member 54 fixed in the up-down direction (arrow Z direction)
And the opposite direction)
I have. FIGS. 14A to 14C show the movable support member 53.
FIG. 15A and FIG. 15B show details of the guide member 54.
Show details. As shown in FIGS. 4 and 14 (a) to (c).
The upper tray 8 and the lower tray 8
Linear guides into which the left ends of the left tray 9 are slidably fitted.
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 to the respective pins.
Thereby, 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 turn-taped by the support pin 56a.
In a plane perpendicular to the disk carrying surface of the
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 function as interlocking means
The movable support member 53 slides on the movable support member 53 via the member 56.
It moves up and down together with the
You. In this embodiment, the upper tray 8 and the lower tray 8 are used.
Support member for 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 tray 8.
The pair of pins 56c is provided for the
Each of the trays may be directly carried. Also, a pin
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 internal member 54 becomes unnecessary and can be reduced. The interlocking means, the movable support member 53 and the pin
The supporting member composed of the pin 56c, the guiding member 53,
A vertical chassis 15 serving as an inner member;
The upper tray 8 along the lower hole 26 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
Place the other tray in either the storage position or the protrusion position.
Close. Further, the guide driving 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. That is, for example
If the upper guide 8 is the first hanging portion 26 of the upper guide hole 26,
a, the first flat portion 26c and the second
The turntable 17 is moved along the hanging portion 26b in order.
When moving while avoiding, the other lower tray 9
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
Move along turn 7 while avoiding turntable 17
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 is moved 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 part of the lower guide hole 27 which is located below the lower end.
The lower end of 27a is above the lower end of the 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 a suitable 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 support member 58 is disposed above the
As in the case of the moving member 56, the turn
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. 4 and FIGS. 17 (a) and 17 (b)
As described above, the free end of the support member 58 is
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 pressing force of the pressing member 59
To the magnet 59a and the turntable 17
By being attracted to a fixed magnetic member (not shown),
Can be obtained. The left side of the free end of the support member 58 has a pair
Rollers 58b and 58c are provided.
The upper plate 23 (FIGS. 2, 3, 4 and 5).
And 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
But an 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 rack 29.
Lower end of cam follower 40 provided between racks 30
Is actuated by contact with 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 the formed cam grooves 29g and 30g respectively
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 referred to 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. The compact disk 5 is placed 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 doubled as described above as shown in FIGS.
Twice 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 by a predetermined distance.
Only moved forward (in the direction of arrow Y)
Mesh. Thereafter, the pinion 35 continues to rotate,
The upper rack 29 and the lower rack 30 are shown in FIGS.
It moves as shown in FIG. By moving each rack, FIG.
8 to 32, the upper plate 23 and the lower plate
The rate 24 corresponds to the upper guide hole 26 and the 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. In addition, 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)
(Shown) due to the magnetic force of
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 screen moves with the movement of the upper tray 8 and the lower tray 9 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 this,
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 it is configured to be moved along the lower guide hole 27,
Further, the pin is reversed at each hanging portion included in each guide hole.
The row is prevented by the swinging 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 the 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.
And a lower guide hole 27 is formed.
Including the first and second hanging parts 27a, 27b and continuous with them
Between the first flat portion 27c and the hanging portion 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 outer portion for sliding fit
A pair of swing members 72 and 73 are provided and
It may be used instead of the moving member 32. [0030] As described above, the disc player of the present invention is
According to the above, the action of the cam groove (29f) and the pin (40a)
The driven gear (29) is initially driven by the
Starts to mesh with the drive gear (35).
The tray is driven by the drive gear and the drive gear.
Simple configuration to move in the direction protruding from the housing
In this way, accurate operation of the tray can be obtained.

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 the 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 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 the 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 (guide member) 17 Turntable 20 Carriage 23 Upper plate 24 Lower plate 26 Upper guides 26a, 27a First hanging part 26b, 27b Second hanging portion 26c, 27c First flat portion 26d, 27d Tray projecting second flat portion 27 Lower guide 29 Upper rack (driven gear) 29a, 30a Mountain-shaped cam grooves 29b, 29c, 30b, 30c Shaped portions 29e, 30e Tooth missing portion 30 Lower rack (driven gear) 32 Swinging member 33 Cam member 35 Pinion (drive gear) 37 Motors 40, 65, 66 Cam follower 53 Movable support member 54 Guide member 56 Interlocking member 58 Support member 59 Pressing member 59a Magnets 61, 62, 63 detection Switch 71 photosensor

Claims (1)

(1) A tray (8) that moves in the front-rear direction so as to carry a disk (5) and protrude and house it with respect to the player housing (2); A driven gear (29) that moves, a driving gear (35) that meshes with the driven gear, a motor (37) that drives the driving gear, and the longitudinal direction that is provided integrally with the driven gear. To
In a disc player provided with a cam groove (29f) including an inclined portion inclined by a tilt and a pin (40a) slidably contacting the cam groove, the pin moves in a direction different from the extending direction of the inclined portion.
As a result, the pin comes into sliding contact with the inclined portion, and the driven
The moving gear is advanced by a predetermined distance in a direction protruding from the player housing, whereby the driven gear and the driving gear are changed from a non-meshing state to a meshing state, and the motor is driven via the driven gear.
A disc player, wherein the tray moves in a direction in which the tray protrudes from the player housing by receiving a driving force from the player.