JP2643920C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device capable of accurately loading disks of different sizes and diameters.
The present invention relates to a disc loading device for a disc player. 2. Description of the Related Art A so-called slot-in device is used as a disc loading device for a car-mounted CD player or the like.
The loading type is widely used. A disk loading device of this slot-in loading type is shown in FIG.
As shown in FIGS.
A loading roller 2 is provided, and a disc 3 is inserted into the disc insertion path 1.
Then, the disc loading roller 2 comes into contact with the surface of the disc 3,
The disk 3 is loaded by rotating the roller 2 in one direction,
The disc 3 is unloaded by rotating the disc 3
. [0004] In addition, reference numeral 4 denotes a roller disposed above and opposed to the disk loading roller 2.
The disk upper surface guide plate 4 and the disk upper surface guide plate 4
The disk 3 is sandwiched between the roller 2 for the ring. And the above disk
The diameter of the crawling roller 2 is gradually reduced from both sides in the length direction toward the center.
The disk upper surface guide plate 4 is also formed in a tapered shape.
As it goes from both sides to the center, it corresponds to the loading roller 2.
It is formed on a tapered surface that widens the interval with the roller 2 for scrolling.
Between the disk loading roller 2 and the disk upper surface guide plate 4
3, only the non-signal recording surface of the upper and lower peripheral edges of the disk 3 is loaded.
The recording roller 2 and the guide plate 4 on the upper surface of the disc, and the signal on the inner side of the non-signal recording surface.
The recording surface contacts the disk loading roller 2 and the disk upper surface guide plate 4.
In such a case, the signal recording surface of the disk 3 is protected. [0005] By the way, in the above-mentioned conventional disk loading device, different sizes and diameters are used.
Difficult to use for discs, for example, 12cm diameter disc and 8cm disc
There was a problem that it was. For example, a disc made for the purpose of being used for a 12 cm disc
The scrolling device is, of course, suitable for a 12cm disc.
Since the width of the disc insertion path is set, let's use an 8cm CD for this
Then, as shown by the solid line in FIG. 15, the center c1 of the 8 cm CD5 ₁ The disk insert
Center line c1 of entrance passage 1 _Two 8cm CD5 into the disc insertion path 1
Unless inserted, 8cm CD5 cannot be centered without fail.
When the insertion position of the CD5 is shifted, as shown by the imaginary line in FIG.
This is because it is in a state in which no interling is performed. 6 is a turntable. In order to solve the above problem, before the disk loading roller 2,
A pair of small-diameter disk guides is provided, and these guides
It would be good if it could be inserted into the center of the entrance passage.
If a small-diameter disc guide is fixedly provided before the loading roller 2
The disk insertion path is narrowed by these small-diameter disk guides.
Cannot insert disc. According to the present invention, when a small-diameter disc is inserted, a pair of small-diameter disc guides
Guides the loading of small-diameter discs
When inserting a large-diameter disc, a pair of small-diameter discs
The guides are unlocked and displaced away from each other to
Not to be a hindrance when inserting, let alone large diameter disc
, Disc loading that ensures centering of small discs
It has been made for the purpose of providing a device. A disk loading roller is provided so as to cross the disk insertion path.
When a disc with a different diameter is inserted into the disc insertion path,
The disk loading roller is pressed against the periphery of the roller, and the roller is moved in one direction.
By rotating the disk loading, the disk loading
A pair of small-diameter discs set at positions where the small-diameter disc inserted from the disc insertion passage can be positioned on the turntable.
A guide is provided, and the pair of small-diameter disc guides is
When inserting a large-diameter disc, retract it so that it does not hinder the insertion.
The configuration was adopted. Therefore, when inserting a small-diameter disk, the small-diameter disk
After being positioned on the turntable by, it is supported by the turntable
. When a large-diameter disc is inserted, the large-diameter disc causes
The step is activated, and the large-diameter disc is turned on the pair of small-diameter disc guides.
Evacuate to a position where it will not interfere with moving up. Hereinafter, the present invention will be described in detail with reference to the drawings. A. FIG. 1 shows a schematic configuration of a disc loading apparatus according to the present invention (see FIG. 1).
cm CD (hereinafter referred to as large-diameter disc) 12 and 8 cm CD (hereinafter referred to as small-diameter disc).
Disk 13 of the present invention configured to be able to load both
A scrolling device, the device 11 corresponding to the size of the large-diameter disc 12
It is formed in size. The disk provided on one side of the frame (chassis) 14
A large-diameter disk 12 or a small-diameter disk
When the disc 13 is inserted, these discs 12 and 13 traverse the disc insertion path 16.
Into the chassis 14 with the disc loading roller 17
Is to be read. The disk insertion passage 16 has a small diameter disk.
A pair of left and right small-diameter disk guides 18 and 1 for guiding the disk on the turntable 24.
9 and the pair of small-diameter disc guides 18 and 19
When inserting the large-diameter disc 12, guide operation is performed so as not to hinder the insertion.
It retreats and moves by the operation means. The guide operation means is the left
Slide the right pair of small-diameter disc guides 18 and 19 in the direction to separate them from each other.
Guide displacement mechanism 20 and guide displacement mechanism 20 to small-diameter disc guide 18
, 19 at the small-diameter disk guide position, and the small-diameter disk
When the large-diameter disc 12 is inserted
At first, the guide displacement mechanism 20 to the small-diameter disc guide 1
A pair of left and right disk diameter detectors 22 and 23 for unlocking the locks 8 and 19, respectively.
ing. Reference numerals 25 and 26 denote a pair of left and right clamp release arms. B. Schematic Configuration of Frame (See FIGS. 2 to 5) The frame 14 is composed of the pair of small-diameter disk guides 18 and 19 and a guide displacement mechanism.
20, the upper frame 27 on which the lock mechanism 21 is mounted, and the turntable
And a lower frame 28 to which a bull 24 and an optical pickup (not shown) are attached.
The disk loading roller 17 and loading by the roller 17
For lowering the large and small diameter discs 12 and 13 onto the turntable 24.
A moving frame 29 is provided. The upper frame 27 is provided on both sides of an upper plate 31 provided with a clamper insertion hole 30.
The right side plates 32 and 33 are connected to each other to form a substantially circular cross section.
The guide displacement mechanism 20 and the lock mechanism 21 are attached to the upper surface of the upper plate 31.
Have been. On the lower surface of the upper plate 31, gradually from the left and right sides toward the center.
A disk upper surface guide plate 35 provided with an inclined tapered surface 34 is attached,
A disc insertion opening 15 and a disc insertion passage 16 are formed below the guide plate 35.
It is supposed to be. As shown in FIG. 3, the lower frame 28 is provided on the left and right sides of the upper frame 27.
The bush receiving pieces 32a, 32a, 33a, 33a at the lower ends of the plates 32, 33
36, and are mounted on the vehicle by these vibration absorbing bushes 36, 36.
Vibration from the body (the body of an automobile to which the disc loading device of the present invention is mounted).
Absorb the movement and prevent the disk or pickup on the turntable 24 from swinging.
It has become so. The rotating frame 29 includes a disk end support plate 37 located below the disk insertion slot 15, and a pair of left and right arms 38 provided on both sides of the support plate 37.
One end of each of the arms 38 and 39 is connected to a pivot 40
As a result, the upper frame 27 is rotatably supported by the left and right side plates 32, 33.
I have. A spring locking pin 41 is provided at the other end of the arms 38 and 39.
One end of a torsion coil spring 42 is rotatably locked to the pin 41.
The other end of the torsion coil spring 42 is connected to the side plate 3 of the upper frame 27.
2 and 33 are rotatably locked to spring locking pins 43 provided. And
The rotation frame 29 is rotated counterclockwise (the arrowhead a direction) around the pivots 40, 40.
), The rotating frame 29 is rotated by the spring of the torsion coil spring 42.
Due to the click action of the force, it is maintained in a state where it is fully rotated in the counterclockwise direction (see FIG. 4).
), And when the rotating frame 29 is rotated clockwise (direction of arrow b), the rotating frame 29 is rotated.
The frame 29 is formed by a click action of the spring force of the torsion coil spring 42,
It is maintained in a state of being rotated to the maximum direction (see FIG. 5). When the rotating frame 29 is rotated to the maximum in a counterclockwise direction,
As shown in FIG. 4, the back end side of the disk end support plate 37 is inclined upward.
Now, the upper surface of the disc inserted from the disc insertion slot 15 will be described.
Pressed by the disc loading roller 17 toward the disc upper surface guide plate 35 side.
The disc is loaded on the turntable 24 with the disc loading roller 17.
Feed it upward, and then rotate the rotating frame 29 clockwise to the maximum.
Then, the disk end support plate 37 is lowered at the rear end side as shown in FIG.
State, and lowers the disk on which one end is placed on its upper surface, and
The disc is placed on the turntable 24. C. Configuration of Disk Loading Roller (See FIGS. 6 to 8) The outer peripheral surface of the disk loading roller 17 has a lengthwise direction as shown in FIG.
The tapered surface is formed so that the diameter gradually decreases from both sides toward the center. So
Then, the disk loading roller 17 is positioned on the rear end side of the disk end portion support plate 37 of the rotating frame 29 in a state in which the height thereof is aligned with this (see FIGS. 4 and 5).
Rotating between the left and right arms 38 and 39 of the rotating frame 29 by the roller shaft 44.
It is laid so as to be able to rotate, and rotates the rotating frame 29 fully counterclockwise.
And both sides of the disk loading roller 17 are the disk upper surface guide plate.
35 and a rotating frame as shown in FIGS.
A roller drive motor 45 provided on the lower surface of the
Rotation via a gear group 46 and a pinion gear 47 fixed to one end of the roller shaft 44
It is supposed to be. Reference numeral 48 denotes a large and small diameter by rotating the rotating frame 29 clockwise and counterclockwise.
Discs 12 and 13 of different types are mounted on a turntable 24, respectively, and
Shows a mounting device (hereinafter, referred to as a rotating frame driving mechanism) to be clamped by a pump 95.
You. The rotating frame driving mechanism 48 is connected to the arm 39 of the rotating frame 29 at one end.
Is rotatably attached to a pivot arm 49 pivotally supported and the other end of the pivot arm 49.
The pinion gear 47 and the large-diameter gear portion 50a are always meshed with each other.
The upper and lower gears can be connected to and separated from the small-diameter gear portion 50b of the idle gear 50.
A rack 51 having one end pivotally attached to the side plate 33 of the frame 27;
Is provided with an electromagnetic actuator 52 for bringing the device into and out of contact with the idle gear 50. The roller drive motor 45 is driven to rotate the disk loading roller 17.
Rotate and feed large and small diameter disks 12 and 13 to a position directly above turntable 24
The loading end is detected by the loading end detection mechanism 53 described later.
Then, the electromagnetic actuator 52 is operated to move the rack 51 as shown in FIG.
With the idle gear 50. Then, as shown in FIG.
50 descends along the rack 51, and turns while the idle gear 50 is attached.
The frame 29 rotates downward and turns the large and small-diameter disks 12 and 13
On the turntable 24 with the clamp 95
It is. D. Configuration of small-diameter disc guide (see FIGS. 1 and 9) A pair of left and right small-diameter disc guides 18 and 19 are arranged around a loading center RC.
And the diameter d of the small-diameter disc 13 ₁ Approximately the same interval d _Two Placed with these
When the small-diameter disk 13 is inserted between the small-diameter disk guides 18 and 19, the small-diameter disk
The center of the disc 13 coincides with the loading center RC.
You. These small-diameter disk guides 18 and 19 insert the large-diameter disk 12.
At this time, the guide operation means described below displaces the left and right so as to be separated from each other (
Slide) so that it does not become an obstacle when inserting the large-diameter disc 12
I have. E. Configuration of guide operation means E _-1 . Configuration of Guide Displacement Mechanism (See FIGS. 1 and 9 to 12) The guide displacement mechanism 20 has a left-right one formed substantially symmetrically as shown in FIG.
A pair of elongated slide plates 54, 55, and these slide plates 54, 55
A pair of rotating plates 56 and 57 supporting one end of the
, 57 for applying a sliding force to the slide plates 54, 55 via
Coil springs 58 and 59. One slide plate 54 of the pair of slide plates 54, 55
(The upper slide plate in FIG. 9, hereinafter referred to as the left slide plate)
The first and second slide guide holes 60 and 61 are formed in two rows in the
In addition, a small-diameter disc guide mounting slot 62 is formed on the left end side in the length direction.
One (left) small-diameter disc guide 18 is attached to the long hole 62 downward,
A lock pin 63 constituting the lock mechanism 21 described below is attached to the right end side downward.
Be killed. In addition, the other (the slide plate at the bottom in FIG.
The slide plate 55 of the left side is the same as the slide plate 55 of the left side.
The second and third slide guide holes 64 and 65 are formed in the length direction as described above.
A long hole 66 for attaching a small-diameter disc is formed at the right end side in the direction.
The other (right) small-diameter disc guide 19 is attached downward, and a lock is
Kupin 67 is attached downward. Then, the lock pin 63 of the left slide plate 54 is
The pair of left and right slides is inserted into the fourth slide guide hole 65 of the
The ride plates 54 and 55 are overlapped and placed on the upper plate 31 of the upper frame 27.
Then, the first slide guide pin 68 projecting from the upper plate 31 is
The first slide guide hole 60 of the guide plate 54 is fitted into the second slide guide hole 60.
The dowel 69 is fitted into the third slide guide hole 64 of the right slide plate 55.
Then, the third slide guide pin 70 is connected to both the left and right slide plates 54 and 55.
By fitting the slide guide holes 61 and 65 into the second and fourth slide guide holes 61 and 65,
The slide plates 54 and 55 move along the first to third slide guide pins 68 to 70.
It is designed to slide. The pair of left and right rotating plates 56 and 57 are formed with bearing holes 56 a and 5 provided at one end.
7a, the shafts 18a and 19a of the small-diameter disk guides 18 and 19
While being pivotally supported, the other end is connected to the upper plate 31 of the upper frame 27 by shafts 71 and 72.
It is pivoted. One end of the pair of left and right coil springs 58 and 59 has the one end side of the rotating plate 5.
6, 57, the other end of which is locked to the upper plate 31 of the upper frame 27.
The sliding force is applied to the plates 54 and 55 so as to overlap each other. So
1 in a state where the slide plates 54 and 55 are most overlapped with each other.
As shown in FIG. 2, a first slide guide erected on the upper plate 31 of the upper frame 27.
The doping pin 68 is located at the left end of the first slide guide hole 60 of the left slide plate 54.
And the second slide guide pin 69 is located on the third slide plate 55 on the right side.
The third slide guide pin 70 is located at the right end of the
Is the left end of the second slide guide hole 61 of the left slide plate 54 and the right end
Located at the center of the fourth slide guide hole 65 of the other slide plate 55.
Swelling. Then, under this condition, the pair of small-diameter disc guides 18,
Reference numeral 19 is located at the small-diameter disc guide position. Since the guide displacement mechanism 20 of the embodiment has the above-described configuration, when the large-diameter disk 12 is inserted from the disk insertion port 15 as shown in FIGS.
The outer peripheral surface of the disk 12 abuts on a pair of left and right small-diameter disk guides 18 and 19,
A pair of left and right slide play mounting these small-diameter disc guides 18 and 19
G, 54, 55 slide left and right to widen the gap between the small-diameter disc guides 18, 19
That is, the large-diameter disk 12 is passed through. As shown in FIG. 12, a pair of small-diameter disk guides 18 and 19
When the guide displacement mechanism 20 is in the scroll guide position, the lock mechanism 21 described below is used.
And insert the small-diameter disc 13 between the small-diameter disc guides 18 and 19.
Then, the small-diameter disc 13 is secured by these small-diameter disc guides 18 and 19.
It will be loaded in the state of being interned. And as mentioned above
The first slide guide pin 68 erected on the upper plate 31 of the upper frame 27
The second slide plate 54 is located at the left end of the first slide guide hole 60,
The third slide guide pin 69 of the right slide plate 55
The third slide guide pin 70 is located at the right end of the
At the left end of the second slide guide hole 61 of the
It is located at the center of the fourth slide guide hole 65 of the rate 55.
Therefore, the pair of left and right small-diameter disc guides 18 and 19 are located at the small-diameter disc guide positions.
When one of the slide plates 54 and 55
When the plate is locked by the lock mechanism 21, the other slide plate is automatically locked.
The small-diameter disc 13 is moved between the small-diameter disc guides 18 and 19 in the locked state.
The slide plates 54 and 55 are
It is designed not to be idled. E _-2 . Configuration of Lock Mechanism (See FIGS. 1, 9 to 12) The lock mechanism 21 is attached to one end of the pair of left and right slide plates 54, 55.
A pair of left and right lock pins 63, 67 attached thereto,
Pin receiving recesses 71 and 72 are fitted on the outer periphery to fix lock pins 63 and 67.
A pair of lock plates 73, 74, and
The pair of left and right coil springs 75 and 76 apply a rotational force in the direction in which the concave grooves 71 and 72 are fitted to the lock pins 63 and 67. The lock plates 73 and 74 are formed in a substantially right-angled triangular shape.
The shafts 18a of the small-diameter disk guides 18, 19 are inserted into bearing holes 73a, 74a provided in the portions.
19a, and is rotatably supported by inserting the
The pin receiving grooves 71 and 72 are formed on one side sandwiching. The pin receiving groove 71
, 72 indicate a pair of left and right small-diameter disc guides 18 and 19 at which the small-diameter disc guide is located.
At the position of the small diameter disc guides 18 and 19
Is fixed in that position. The tip side of the side where the pin receiving grooves 71, 72 of the lock plates 73, 74 are formed.
The slide plate end engaging portions 77 and 78 are provided at the corners of
While the disk 12 is being loaded, as shown in FIGS.
The ride plate end engaging portions 77 and 78 are connected to the first and second slide guide pins 68.
, 69, and comes into contact with these slide plates 54, 55 to small diameter devices.
The disk guides 18 and 19 are prevented from returning to the small-diameter disk guide position.
It has become. Small diameter disk guides 18 and 19 return to small diameter disk guide position
Then, there is a danger that the guide displacement mechanism 20 is locked by the lock plates 73 and 74.
This is to prevent this. E _-3 . Configuration of Disk Diameter Detector (See FIGS. 1 and 9) A pair of left and right disk diameter detectors 22 and 23 are literally inserted into the disk insertion slot 15.
It is determined whether the disk to be inserted is the large-diameter disk 12 or the small-diameter disk 13,
When the diameter disc 12 is inserted, the locking mechanism 21 locks the guide displacement mechanism 20.
To solve the problem. The pair of left and right disk diameter detectors 22, 23 are provided with a small-diameter disk guide 18,
A pair of left and right lock plates 73 and 7 located closer to the disc insertion slot 15 than
4 so as to allow the small-diameter disc 13 to pass through as it is.
It is attached downward with substantially the same interval as the diameter of the diameter disc 13. Therefore, when the large-diameter disk 12 is inserted between them, the outer peripheral surface thereof
Disk diameter detectors 22 and 23, and these disk diameter detectors 22 and 23
A force is applied to push outward, and a pair of left and right lock plates 73 and 74 is actuated.
Are rotated against the spring force of the coil springs 75 and 76, and the pin receiving grooves 71 and 72 are rotated.
Comes out of the outer periphery of the lock pins 63 and 67, and locks the guide displacement mechanism 20 automatically.
It is released dynamically. F. Loading end detecting mechanism (see FIGS. 1 and 10 to 12) The loading end detecting mechanism 53 is adapted to the diameters of the large and small diameter disks 12 and 13.
Then, these disks 12 and 13 are sent above the turntable 24.
Then, the electromagnetic actuator 52 (see FIG. 2) is operated. The loading end detection mechanism 53 is a switch for the electromagnetic actuator 52.
79 can be mounted and pivotable on the upper plate 31 of the upper frame 27 with the shaft 80
And a first rotating rod 81 attached to the first rotating rod 81.
With the pin 82 fitted in the pin receiving groove 83,
A second rotating rod 85 rotatably mounted on the plate 31 and a second rotating rod 8;
5, a pin-shaped first rear disc guide 86 attached downward to the other end of
The second rear end of the arc-shaped wall attached below the other end of the first rotating rod 81
The first disc 81 and the first disc 81 are attached to the first disc 81 so as to be rotatable about a shaft 88.
Switch operating rod 89, and the switch operating rod 89
The large and small diameter disks 12 and 13 come into contact with each other, and the switch operating rod 89 is moved.
A disk contact pin 90 for rotating in the switch pressing direction, the first and second rotating rods
A rotating power is applied to the rotating rods 81 and 85, and the first
, The second rear disk guides 86 and 87 are set at the small-diameter disk guide position.
The first and second coil springs 91 and 92 and the rotation of the guide displacement mechanism 20.
The slide plate 55 is attached to the shaft 72 of the
When it is being held, the rising piece 93 provided at one end of the first rotating rod 81 is held down,
A stopper 94 which locks the first and second rotating rods 81 and 85.
. When loading the small-diameter disk 13, as shown in FIG.
The first and second rear disk guides 86 and 87 are small-diameter disks by the stopper 94.
It is locked in the guide position, and the small-diameter disc 13
When the disk 13 is sent onto the disk 24, the disk 13
The switch 79 of the electromagnetic actuator 52 is turned by turning the switch operation rod 89.
Put in. When loading the large-diameter disk 12, the slide plate 55
The plate is slid to rotate the rotation plate 57 and the stopper 94, and the first and second rear
The disk guides 86 and 87 are unlocked and the rear disk
The scroll guides 86 and 87 are pushed and expanded by the large-diameter disk 12 and pressed down.
And set at the large-diameter disc guide position. And large diameter disk 12
Is the same as that for the small-diameter disc 13 when the
As described above, the disc 12 hits the disc contact pin 90 and the switch operating rod 89 is turned.
That is, the switch 79 of the electromagnetic actuator 52 is turned on. It should be noted that the pair of left and right clamp release arms 25 and 26 are set before loading is completed.
Until then, it contacts the inclined surface 96 on the lower surface side of the magnet clamp 95 and
It is supported in a state of being raised on the loading table 24 and loading is completed.
At the same time as the disc is placed on the turntable 24,
The arms 25 and 26 rotate in a direction away from each other to support the magnet clamp 95.
The clamp 95 is attracted to the turntable 24 side, and
The disk is clamped between the disk 24 and the disk 24. G. Operation of the embodiment Since the disk loading device of the embodiment has the above-described configuration, a large-diameter disk drive is used.
When the disc 12 is inserted into the disc insertion slot 15, a pair of left and right disc diameter detectors 22 is provided.
, 23 cause a pair of left and right lock plates 73, 74 to rotate.
The lock of the guide displacement mechanism 20 by the rates 73 and 74 is released, and the large-diameter disc 1
2 is sent to the turntable 24 side by the rotation of the disc loading roller 17.
It is embedded. The large-diameter disk 12 is sent to the turntable 24 side
And a pair of left and right small-diameter disc guides 18 and 19 in contact with the phase.
The pair of left and right slide plates 54 and 55 to which the guides 18 and 19 are attached are
And the pair of left and right rotating plates 56 and 57 rotate.
To the stopper 94 provided on one end side of the rotating plates 56 and 57.
While the restraining of the rising piece 93 by the rear disc is released,
Guides 86 and 87, and push these rear disk guides 86 and 87 left and right.
Push down while expanding to set it at the large-diameter disc guide position. And
The large-diameter disc 12 has a rear disc guide set at the large-diameter disc guide position.
Feeding by the disc loading roller 17 pressed against the guides 86 and 87
At this time, the large-diameter disc 12 hits the disc contact pin 90.
By rotating the switch operating rod 89, the switch 7 of the electromagnetic actuator 52 is turned on.
Insert 9. Therefore, the rotation of the rotating frame drive mechanism 48 is controlled by the electromagnetic actuator 52.
The rack 51 is meshed with the idle gear 50, and the idle gear 50
1, the rotating frame 29 is rotated downward, and the large-diameter
The disc 12 is placed on the turntable 24. And large diameter disk 12
Is placed on the turntable 24 and at the same time the clamp release arms 25 and 26
It turns in the direction away from each other, and releases the support of the magnet clamp 95.
The lamp 95 is attracted to the turntable 24 side, and the lamp 95 is in contact with the turntable 24.
Then, the large-diameter disk 12 is chucked. When loading the large-diameter disk 12, a pair of left and right small-diameter disk
As the width of the large-diameter disk 12 passing between the guides 18 and 19 increases,
The doors 18, 19 and the slide plates 54, 55 move in a direction away from each other.
When the diameter portion, which is the maximum width of the large-diameter disk 12, passes, the pair of small
The diameter disk guides 18 and 19 gradually move toward each other.
At this time, the slide plate end engaging portions 77 and 78 of the lock plates 73 and 74 are
The first and second slide guide pins 68 and 69 come into contact with each other,
, 55 to prevent the guide displacement mechanism 20 from being locked by the lock plates 73, 74.
To prevent damage. Therefore, the large-diameter disk 12 is pushed out during unloading.
When they come, the small-diameter disk guides 18 and 19 separate from each other and pass through the large-diameter disk 12.
Let it do. When loading the small-diameter disk 13, the small-diameter disk 13 is
Without rotating the right pair of lock plates 73 and 74, the left and right
It passes between the diameter detectors 22 and 23. Therefore, a pair of left and right small-diameter disc guides 1
8 and 19 are locked at the small-diameter disc guide position.
The small-diameter disk 13 that has passed between the pair of small-diameter disk guides 18 and 19
It will be loaded with the centering. Note that
When unloading the disc after finishing the disc playback, etc., drive the roller.
If the motor 45 is reversed, the idle gear 50 rises along the rack 51.
, The pivot frame 29 is pivoted upward and the clamp release lever 2
5 and 26 are rotated in a direction approaching each other, and the inclined surface 96 of the magnet clamp 95 is rotated.
, And is supported by being lifted from the disk surface. And disk
Is pushed from the disc insertion slot 15 by the rotation of the disc loading roller 17.
It comes out. In the embodiment, the guide operation means is a guide displacement mechanism 20 and a lock mechanism 21.
And a pair of disk diameter detectors 22 and 23 are shown.
A pair of rotating arms is used as a means, and one end of each of the rotating arms has a small-diameter disc guide 18, 1.
9 is provided, and when the large-diameter disk 12 is inserted, the circumference of the large-diameter disk 12 is
Press the small-diameter disk guides 18 and 19 on the
As a result, the small diameter disk guides 18 and 19 are retracted and moved.
Is also good. As described above, the disc loading device according to the present invention provides a disc insertion path.
And a turntable capable of supporting disks of different sizes, large and small, and a disk loading passage.
The small-diameter disc inserted from above is set at a position where it can be mounted on the turntable.
And a pair of small-diameter disc guides,
When a large-diameter disc is inserted, the large-diameter disc is pressed to
Guide operator to retreat the disk guide from the small-diameter disk set position
Since a step is provided, when a small-diameter disk is inserted, the pair of small-diameter disk
Guide the loading of small diameter discs while inserting a large diameter disc
Sometimes, the guide operation means is pressed and operated by the large-diameter disc, and
Retract the pair of small-diameter disc guides to a position that does not interfere with insertion of the large-diameter disc.
So that not only small-diameter disks but also large-diameter disks can be centered reliably.
There is an effect that can be.

[Brief description of the drawings]   FIG.   FIG. 2 is a perspective view showing the appearance of the disc loading device.   FIG. 2   FIG.   FIG. 3   The bottom view of a frame.   FIG. 4   FIG. 4 is a side view of a state in which the rotating frame is raised.   FIG. 5   FIG. 4 is a side view of a state where the rotating frame is lowered.   FIG. 6   FIG. 3 is a sectional view of a disk loading roller portion.   FIG. 7   The side view which shows the relationship between an idle gear and a rack in a rotating frame up state.   FIG. 8   FIG. 4 is a side view showing a relationship between an idle gear and a rack in a rotating frame down state.   FIG. 9   FIG. 3 is an exploded plan view of a guide displacement mechanism and a lock mechanism.   FIG. 10   Top view of loading large diameter disc towards turntable   FIG. 11   FIG. 4 is a plan view showing a state in which a large-diameter disc is loaded right above a turntable.   FIG.   FIG. 4 is a plan view showing a loading state of a small-diameter disk.   FIG. 13   FIG.   FIG. 14   FIG. 14 is a sectional view taken along line AA of FIG. 13.   FIG.   Explanatory drawing which shows the problem of a conventional example.   [Explanation of symbols]   11 ... Disk loading equipment   12 ... Large diameter disc   13 ... Small diameter disc   14… Frame   15 ... Disc insertion slot   16 ... Disc insertion passage   17 ... Disc loading roller   18, 19: A pair of small-diameter disc guides   20: Guide displacement mechanism   21 ... Lock mechanism   22, 23 ... Disc diameter detector

Claims (1)

Claims: 1. A disk loading roller disposed to cross a disk insertion path, a turntable on which disks having different diameters are mounted, and a clamper for clamping the disk together with the turntable. A mounting mechanism for mounting the disk sent by the loading roller on the turntable; and a position where the small-diameter disk inserted from the disk insertion passage can be mounted on the turntable in a centered state. A pair of small-diameter disk guides, which are pressed by the large-diameter disk when the large-diameter disk is inserted from the disk insertion passage and are displaced away from a position where the large-diameter disk can be mounted on the turntable; Operation by the disc sent by the A loading end detection mechanism that detects that the disk has reached a position where it can be mounted on the turntable, and when a large-diameter disk is inserted from the disk insertion passage, is pressed by the large-diameter disk, The small-diameter disk guide is displaced away from a position where the small-diameter disk guide can be mounted on the turntable, and the disk is fed by the loading roller.When the small-diameter disk is inserted from the disk insertion passage, the small-diameter disk guide is centered by the pair of small-diameter disk guides. The disc is sent to the turntable by the mounting mechanism based on the detection output from the loading end detection mechanism, and is mounted to the turntable by the turntable and the clamper. Tadi A disc loading device characterized by clamping a disc.