JPS6299952A - Loader for recording disc - Google Patents

Abstract

PURPOSE:To prevent damage on a recording disc by driving a roller pressing into contact onto a non-read face side of the recording disc so as to make the roller on the reading face side freely turnable. CONSTITUTION:In the loader of a recording disc comprising the 1st roller 83 pressing into contact onto the non-read face side of the recording disc 58, the 2nd roller 84 pressed into contact onto the read face side of the recording disc and a roller drive mechanism, a torque is delivered to the 1st roller 83 from the roller drive mechanism to driven the 1st roller 83 so as to make the 2nd roller freely turnable. Thus, the damage to the recording disc at carrying is prevented and damaging is prevented even at mis-operation such as quick loading or quick ejection of the recording disc, because the roller of the read face side is made freely turnable.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mounting device for recording discs such as compact discs and video discs, and is suitable for reliably mounting a recording disc on a turntable even under vibration conditions such as in a vehicle. This invention relates to a recording disk mounting device.

[Conventional technology]

Conventionally, this type of in-vehicle use was designed to rotate the disc under folding conditions.
A method of automatically mounting a disc has been proposed as described in the document Nikkei Mechanical (No. 1985-4-8) as a mounting device that is mounted on a table for playback.

[Problem that the invention seeks to solve]

However, conventional methods do not take into account the possibility of scratches on the disc reading surface caused by erroneous operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording disk mounting device that eliminates the drawbacks of the prior art, prevents the recording disk from being damaged during transportation, and allows reliable mounting and playback.

[Means for solving problems]

The present invention relates to a recording disk mounting device that transports a recording disk by sandwiching a recording gong between two rollers and driving the roller to rotate. This is achieved by driving.

[Effect]

Since the roller on the reading surface side is rotatable, it is possible to prevent the recording disk from being scratched.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 14. FIG. 1 shows the main parts of the present invention, and FIG. 2 shows the external appearance of a recording disk mounting device to which the present invention is applied, in which a front panel 2 is provided at the front of a case 1, and an eject button 5. A play button 4, other operation buttons 5, an operation display tube 6, etc. are attached, and the panel section is equipped with a display having a substantially inclined surface. The structure of the mechanism will be explained with reference to FIGS. 1 and 3 to 14. Components with the same reference numerals are the same parts.

A door 9 rotatably supported by the chassis 8 is arranged close to the disk insertion hole 7 so as to close it. chassis 8
The pin 11 of the door link 1o, which is pivotally supported by the door link 1o, can slide ζ
The door link pin 12 is engaged with the right end of the door 9, and is fitted with a movable piece 14 of a plunger 13 attached to the chassis 8, and is attached to be slidable in the front-rear direction of the chassis 8, and is attached with a spring 15. The clutch slider 16 is inserted into the clutch slider 16, which is biased forward by the clutch slider 16. Further, the door link 1o is biased by a closing spring 17 in a direction in which the door 9 is closed. One end of the clutch slider 16 is
Bin 31 of clutch link 3o pivotally supported by chassis 8
The clutch link 5o rotates as the clutch slider 16 slides back and forth. On the other hand, the pin 29 at the other end of the clutch link 30 is attached to the chassis 8 and is attached to the rear part of the right slide arm 24 which is slidable in the front and back direction, has an elongated hole 25 and an elongated recess 26, and is It is inserted into the recess 26 of the rack 27 which is biased rearward. The drive gear 25 is connected to the chassis 8
Motor gear 2o attached to motor 19 fixed to
, the reduction gear 21. Power is transmitted through the worm gear 22, and the rack 27 is arranged so as to be able to engage and separate from the drive gear 23 by rotation of the crack link 50.

The mata rack stop collar 52 is fixed to the chassis 8, and is in a position where the rack 27 engages with the drive gear 25 and restricts the rack 27 from escaping downward when it starts moving forward, and the right slide arm 24 is at the rear. When the rack 27 is completely moved in the direction
The front end 33 is lowered downward and is located in a position where it does not come into contact with the rack 27 when the mesh is out of the drive gear 23.

Further, the front end 54 of the right slide arm 24 is slanted, and is pivotally supported by the chassis 8 and is attached to be rotatable in the vertical direction, thereby preventing the door 9 from rotating inward when the right slide arm 24 rotates downward. The ship door stopper 55 is placed in a blocking position and fits into the right end bent portion 36 of the ship door stopper 55, comes into contact with the lower surface of the stopper link 37 that is pivotally supported by the chassis 8, and the right sliding arm 24
When the door moves forward, the door stopper link 57 is pushed up and the door stopper 55 is lowered. Further, the stopper link 67 is always urged downward by the spring roller 8.

Further, the right slide arm 24 is provided with a vertical elongated hole 59, and a rotating plate 41 fitted with a bottle 40 that fits into the elongated hole 69 is connected to a rotating shaft 42 whose both ends are supported by the chassis 8. A rotating plate 44 having a bin 43 is screwed to the left end.

Further, a left slide arm 46 having an elongated hole 45 that fits into the bin 43 is attached to the chassis 8 so as to be slidable in the front and rear direction, and is arranged to slide in the same direction as the right slide arm 24. An end portion 48 arranged so as to press the up switch 47 when the
The left slide arm 46 is provided with an end 50 that presses the chuck switch 49 when moving forward, and a lift lever 52 pivotally supported on the side surface of the chassis 8 is provided in the 5-shaped elongated hole 51.
The bin 53 is fitted. Also, right slide arm 2
4 also has a lifting lever 5 pivoted on the side of the chassis 8.
The four pins 55 are fitted, and the lifting levers 52 and 54 are provided with arcuate portions 56 and 57 formed respectively. Also, a turntable 59 supports and rotates the disk 58, and a taper ring 60 positions the disk, which is attached and arranged to be slidable in the vertical direction with respect to the turntable 59.
The chassis 8 is equipped with a disk motor 61 holding a disc motor 61 at its tip, a reading pickup section 62, and a moving mechanism section (not shown since it is not directly related to the present invention) that moves the pickup section 62 in the front and back direction. A unit plate 75 having pins 71, 72, 73, 74 so as to be vibration insulated from the chassis 8 with dampers 67, 68, 69, 70 fitted and bonded to damper holders 65, 64, 65, 66 fixed to the installed.

Furthermore, the line connecting the centers of damper 67.69 and 68°7
The dampers 67, 68, 69, and 70 are appropriately arranged so that the intersection 76 of the line connecting the centers of A clamper 80 is equipped with a magnet 79 that is supported by shafts 77 and 78 at the rear of the unit plate 75 supported by the chassis 8 and is disposed opposite to the turntable 59 so that the magnet 79 is not easily transmitted to the unit plate 75. When the arm part 81 comes into contact with the inner surface of the chassis 8, the arm part 81 holds the clamper 8.
A clamper holder 82 made of a leaf spring configured to push up the disk 58 is attached, and a pressure roller 84 is mounted on the front side of the clamp roller 84, which presses the disk 58 against a transfer roller 83 whose both ends are supported on the chassis 8 during transfer. The engagement pins are fixed to both sides of the clamper arm 90, which has shaft portions 88 and 89 having a disk outer diameter 87, which are supported by links 85 and 86 that are supported at one end by a unit plate 75. 91
．． 92 is provided to protrude from the hole 93.94 of the chassis 8 so as to be able to come into contact with the aforementioned lifting lever 52.54.

The main unit plate 75 is attached to the chassis 8 by a spring 95.
When the clamper arm 90 is raised, the vertical direction regulating bin 96. of the unit plate 75 is suspended on both sides.
97.98 is tightened, and the left and right slide arms 24, 4
6 comes into contact with the lower surface portion 99 of the right slide arm 24 and the lower surface portion 100, 101 of the left slide arm 46, respectively, when the slide arm 6 moves forward. Furthermore, a holder 105' is attached which pivotally supports a positioning lever 106 having a positioning pin 102 placed slightly away from the outer diameter of the disk to prevent the disk from shifting in the forward direction when the disk is raised or lowered. are doing. Also, the positioning lever 10
The cam surface 105 of the bushing cam 104 is fitted into the pin of the left slide arm 46 to restrict its rotation. Further, the disk receiver 87 is always urged toward the unit plate 75 by two springs 106. It also has an elongated hole 108 so that it can rotate freely within a certain angular range relative to the convex portion 107 of the drive gear, and a machine shaft 109 that is connected in the rotational direction.
A large pulley 111 attached to the E IJ ring 110 and a small pulley 911 that rotates the transfer roller 83 by friction transmission.
Between 2? A belt 113 is hung here. Further, the transfer roller 86 and the pressure roller 84 are made of rubber or the like, and rotation is transmitted between the core shafts 114 and 115 by friction to prevent scratches when the disk is fixed.

The unit plate 75 also has a bin 116 at a position concentric with the center of the turntable 59 and slightly larger than the outer diameter of the disk. 117 is attached to the chassis 8, and a photoelectronic sensor 118 is also provided on the chassis 8 at a similar distance to detect the presence or absence of light interruption directly below. Sensor 1 detects when the disk is inserted approximately halfway through door 9.
19 is provided, and a sensor 121 for detecting the position of the door link 10 is provided at the end 1201 of the door link described above, and the sensors 11, 8 . UP switch 47. Together with the chuck switch 49, it is connected to a signal determination circuit (not shown) made up of a microcomputer. Also, a disk motor 61, a drive motor 19. Pickup 62. Plunger 13 is connected to a drive circuit (not shown) and is connected to eject button 3. Play button 4. The other buttons 5 are connected to a signal determination circuit, and the display tube is connected to a display circuit (not shown), and the operations of both buttons are controlled by a microcomputer (not shown).

Next, the operation will be explained. When playing the disc 58, when the disc is pressed against the door 9 in the state shown in FIG. 5, the door link end 120 turns on the sensor 121. As a result, the plunger 15 is attracted by the control circuit, and when the door 9 is opened, the drive motor 19 starts rotating, and the drive gear 23
and the dog pulley 111 rotates counterclockwise, and the belt 11
3. The small pulley 112 rotates the transfer roller 83 in the disk retraction direction. At this time, the rack 27 is the plunger 1
3, the clutch slider 16, and the clutch link 30 are disengaged from the drive gear 23 (state in Figure 8).
. Subsequently, when the disk 58 is retracted and the sensor 118 no longer emits light, the drive motor 19 stops and the plunger 15 is turned off. As a result, the door 9 is closed by the force of the spring 17. In addition, the clutch link 30 of the rack 27 rotates and rises due to the force of the spring 15, and engages with the drive gear 26 (state in FIG. 9). Next, the control circuit (all circuits created)
As a result, the drive motor 19 is rotated in the reverse direction, and the drive gear 26 is rotated clockwise. At this time, the large pulley 111 is connected to the drive gear 2.
3 is reversed, the rotation angle range of the elongated hole 108 is the same as that of the convex part 107.
Because it does not push , power is not transmitted, so the large puller (L +) does not rotate. Therefore, the transfer roller 83 does not rotate. The rack 27 moves forward to a position where it overcomes the rack stopper 32. After that, the elongated hole 25 pushes the right slide arm 24. As a result, the right slide arm 24 starts moving forward, and the rotating plate 41 also rotates, so that the left slide arm 46 also moves forward at the same time. Next, Butushukam 10
4 rises, and the positioning lever 103 rises (the state shown in FIG. 9).

As the lifting levers 52 and 54 rotate, the clamp arm 90 is lowered, and the disk receiver 87 is also lowered by the force of the spring 106. At the same time, since the pressure roller 84 descends,
The disk 58 is lowered, and the front side positioning bin 102, the side wall of the disk receiver 87 in the left and right direction, and the bin 11 in the rear direction.
6.117, it is lowered in the substantially positioned state and placed on the turntable 59. Further, the front end portion 34 of this unique slide arm pushes up the stopper link 57, lowers the door stopper 35, and locks the door 9 so that it cannot be opened.

At the same time, the clamper 80 presses down the disk 58, and the left and right slide arms 24, . Lower surface portion 99 of 46. 100
, 101 is farther away from bin 98.97.96, so
The unit plate 75 is completely released from its fixation and becomes free.

Next, the end 50 of the left slide arm 46 presses the chuck switch 49 (Fig. 11), so the drive motor 19 stops, disk loading is completed, and then the control circuit puts the turntable 60° pickup 62 into operation. Starting the performance (state shown in FIG. 11) 0 Next, a description will be given of when the performance is stopped and the disc 58 is ejected. When the eject button 6 is pressed, the control circuit stops the turntable 60, rotates the drive motor 19, and rotates the drive gear 23 counterclockwise. The rack 27 begins to move rearward, and the left and right slide arms 24, 46 begin to move rearward. Next, the lower surface part 99.100. 1
01 contacts the bins 98, 97, and 96. Fix the unit plate 75 so that it does not move upward.

Furthermore, the raising levers 52 and 54 are connected to the left and right slide arms 2.
4. When rotating with the movement of 46, the clamp arm 9
0 is pushed up and the clamper 80 is separated from the disk 58. At the same time, the door stopper 55 is raised by the force of the third spring. Continuing on, the disc receiver 87 is moved up, and as the ramp arm 90 rises, the tip of the clamper holder 82 comes into contact with the chassis 8, the clamper 80 is lifted, the disc 58 is lifted off the turntable 60, and the pressure roller 84 is pressed against the disc 58 by the spring 106. Press it against the transfer roller (state shown in Fig. 15).

Subsequently, the bushing cam 104 is pushed down by the left slide arm 46, and the positioning lever 103 is lowered. Furthermore, the rack 27 moves rearward to a position where it is further away from the rack holder 32. This rear end portion 48 presses the up switch 47. The drive motor 19 is stopped by the control circuit, and at the same time, the plunger 13 is turned on. As a result, the door 9 opens, the clutch slider 16 moves rearward against the springs 15 and 17, rotates the clutch link 50, rotates the rank 27 downward, and disconnects it from the drive gear 23. Subsequently, the drive motor 19 reverses, the drive gear 25 rotates clockwise, and the large pulley 111. Belt 113. The transfer roller 83 rotates in the disc ejection direction via the small pulley 112, and the disc 58 is ejected.

When the disk 58 passes the sensor 119, the control circuit stops the drive motor 19. At this time, the plunger 13 is turned off and the door is closed.

Further, in this embodiment, the plunger 13 is turned OFF at this time, but the plunger 13 is left ON and when the disk moves away from the sensor 118, the plunger 13 is turned OFF.
It is obvious that it is easy to configure the door so that the door is closed by turning 5 off, and in this way the door can be prevented from hitting the disc during ejection.0 [Effects of the Invention] According to the present invention, the recording Since the non-reading side of the disk is driven in pressure contact, it is effective in preventing scratches during transportation of the recording disk, and even in the event of incorrect operations such as prematurely pushing in or pulling out the recording disk, the roller on the reading side can be rotated freely. This has the effect of preventing scratches.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the main parts of the present invention, Fig. 2 is an external view accommodating the device mechanism of an embodiment of the present invention, Fig. 3 is a perspective view of the internal mechanism of Fig. 2, and Fig. 4 is a diagram showing the internal mechanism of Fig. 2. 3 is a left side perspective view, FIG. 5 is a plan view of FIG. 3, FIG. 6 is a view taken along line A-A in FIG. 5,
Fig. 7 is a left side view of Fig. 3, Fig. 8 is a right side view of Fig. 6 during operation, Fig. 9 is a right side view of Fig. 3 during operation, Fig. 10
The figure is a left side view during operation of FIG. 5, FIG. 11 is a left side view during operation of FIG. 3, and FIG. 12 is a view taken along line B-B in FIG.
13 is an operating view of FIG. 12, and FIG. 14 is an exploded perspective view of the vibration insulating section of FIG. 6. Figure 1 Figure 2 η Figure 3 Figure S Figure 6 Figure 7 Figure 8 Figure 9 Figure 1 O Figure Liu 11 Dormitory Iz Figure Y/ Figure 13 Figure 14

Claims (1)

[Claims] 1. A first roller that presses against the non-reading side of the recording disk;
In a recording disk mounting device comprising a second roller that presses against the reading surface side of the recording disk and a roller drive mechanism, the first roller is moved by transmitting a driving force from the roller drive mechanism to the first roller. A recording disk mounting device characterized in that the second roller is rotatable.