KR0141276B1 - Disk chucking system of a compact disk changer - Google Patents

Abstract

The present invention provides a compact disc changer capable of automatically retracting and repositioning a chucking plate from a turntable installed on the deck plate during the lifting motion of the deck plate before and after the compact disc change. In order to provide a disk chucking device for a disk, a disk-rotating gear that is engaged with an internal internal gear of a rotating disk having a plurality of disk mounting portions for mounting a plurality of disks is rotated by receiving power from a drive motor and rotating the spindle. The deck plate, on which the assembly and the optical pickup device are mounted, is freely configured to rotate vertically from the lower side of the rotating disc based on a horizontal rotating shaft installed on the base plate, and a plurality of cam followers from one side of the deck plate. Suddenly A cam hole having a horizontal cam surface and an inclined cam surface parallel to each other on a movable plate slidingly coupled to an upper surface of the base plate, wherein each cam follower is in contact with the inclined cam surface, The upper gears of the upper and lower two-stage spur gears are engaged with the rack formed on the movable plate, and the first circular shaft protruding from the upper center of the upper and lower two-stage spur gears is formed in the first linear guide groove formed on the bottom surface of the movable plate. It is fitted, the gear shifting gear meshed with the lower side gears of the upper and lower two-stage flat gears and the idle gear alternately engaged with the disc rotation gear is installed in engagement with the sun gear receiving power from the drive motor via the power transmission mechanism. The central axis of each other is connected by the rotary link, and from the upper center of the idle gear The deck stop position detecting means for detecting the upper and lower stop positions of the deck plate is provided while the two circular shafts are installed so as to enter and exit the idle gear turning prevention groove having an entrance formed on the bottom surface of the movable plate. And a chucking plate for chucking the disk, the circumferential pulley being installed on the same axis as the upper and lower two-stage flat gears, and the driven pulley is pivotally installed on one side of the base plate. The driving pulley and the driven pulley are connected by a belt, and the chucking plate is installed on the upper surface of the driven pulley.

Description

Disk Chucking Device of Compact Disc Changer

1 is a schematic front view showing a deck plate lifting apparatus of a conventional compact disc changer,

2 is an exploded perspective view showing the disk chucking apparatus of the compact disk changer according to the present invention;

3 is a plan view of the coupling state of FIG.

4 is a cross-sectional view showing an operating state of the present invention.

* Explanation of symbols for main parts of the drawings

30: disk 31: disk mounting portion

32: rotating disc 33: internal gear

34: disc rotation gear 35: drive motor

36: spindle assembly 37: optical pickup device

38: Deck Plate 39: Base Plate

40: horizontal axis of rotation 42, 43: cam follower

45: moving plate 46, 47: horizontal cam surface

48: cam cam surface 50, 51: cam hole

54 support body 55 upper and lower gears

56: upper small gear 57: 1st circular shaft

58: first straight guide groove 59: lower standby gear

60: direction change gear 61: children gear

63: sun gear 64: rotary link

65: second circular shaft 67: entrance

68: idle gear turning prevention home 70: power transmission mechanism

80: deck stop position detection means 92: chucking plate

94: driven pulley 96: driven pulley

98: belt

The present invention relates to a disk chucking device of a compact disk changer (Compact Disk Changer), and more particularly, the deck plate is lowered by using the power of the deck lift motor configured in the compact disk changer of the Top Loading method. When the chucking portion of the chucking plate at the same time deviates from the center of the turntable installed on the deck plate and ascends, the present invention relates to a disk chucking device of a compact disc changer such that the chucking portion coincides with the center of the turntable.

In general, a compact disc changer refers to a device that automatically exchanges discs in a compact disc player when a user loads several compact discs and selects a disc to play. Disc replacement is possible only when the turntable coupled with the disc is removed from the disc, so that the deck plate lifting device is used in parallel with the compact disc changer.

One example of the conventional deck plate lifting apparatus as described above is shown in FIG. 1, but in the state where a plurality of disks 12 are mounted on the plurality of disk mounting parts 11 provided on the rotating disc 10, as shown in FIG. In the disc change, the rotating disc 10 is divided into a rotational motion by a disc turning motor, which is omitted from the drawing, and a deck plate 15 provided with a spindle assembly 13 and an optical pickup device 14 at the bottom thereof. A circular cylinder is installed to be freely moved up and down by the horizontal rotating shaft 16. A cam follower 17 is protruded on one side of the deck plate 15, and the cylinder is mounted on a base plate (not shown). It is fitted in the helical cam groove 19 formed in the cam 18, the cylindrical cam 18 is rotated in place by receiving the rotational force of the cam rotation motor 21 through the reduction gear group 20. A cam Followers 17 is sandwiched between the linear cam (19) and is adapted to the circular motion in the downward direction.

However, the above apparatus does not move because the chucking plate 23 is in contact with the upper surface of the disk 12 when the deck plate 15 is lowered, so that the rotational movement of the rotary disk 10 during the rotation of the rotary disk 10. Of course, there was a problem of damaging the disk 12, of course.

The present invention has been made to solve the above problems, and the chucking plate is automatically moved from the turntable installed on the deck plate by using the driving source for driving the deck plate during the lifting motion of the deck plate before and after the compact disc change. The aim is to provide a disc chucking device for a compact disc changer that can be relocated and repositioned.

In order to achieve the object of the present invention, a disc rotation gear that is engaged with an internal internal gear of a rotating disc in which a plurality of disc mounting portions for mounting a plurality of discs is formed is rotated by receiving power from a driving motor. The deck plate on which the spindle assembly and the optical pick-up device are mounted is freely rotated in a vertical direction from the lower side of the rotating disc based on a horizontal rotating shaft installed on the base plate, and a plurality of cams are formed from one side of the deck plate. Follower is protruding, the cam hole having a horizontal cam surface and the inclined cam surface is formed parallel to each other on the movable plate slidingly coupled to the upper surface of the base plate, the cam follower is in contact with the inclined cam surface, and the base plate Upper side of upper and lower two-stage spur gears on the installed support The gear is engaged with the rack formed on the movable plate, and the first circular shaft protruding from the upper center of the upper and lower two-stage flat gears is fitted into the first linear guide groove formed on the bottom of the movable plate, Directional gears meshed with lower side gears and idler gears alternately engaged with the disc turning gears are installed to interlock with sun gears receiving power from the drive motor via a power transmission mechanism, and the central axes of each other are rotated by a rotary link. And a second circular shaft protruding from an upper center of the idle gear to enter and exit an idle gear turning preventing groove having an entrance formed on a bottom surface of the movable plate, and the upper and lower stops of the deck plate. Deck stop position detecting means for detecting the position is provided, the chucking the disk In the one chucking plate is provided, the primary pulley is installed on the same axis as the upper and lower two-stage spur gears, the driven pulley is pivotally installed on one side of the base plate, and the driven pulley and the driven pulley are connected through a belt. The disk chucking device of the compact disc changer is provided by installing the chucking plate on the upper surface of the driven pulley.

Hereinafter, an embodiment of a disk chucking apparatus of a compact disk changer according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 4 show an embodiment of the disk chucking apparatus of the compact disk changer according to the present invention, and as shown therein, a plurality of disk mounting portions 31 capable of mounting a plurality of disks 30 are formed. The disc turning gear 34 meshing with the internal internal gear 33 of the rotating disc 32 is rotated by receiving power from the driving motor 35, and the spindle assembly 36 and the optical pickup device 37. The deck plate 38, on which the deck plate 38 is mounted, is freely pivoted in a vertical direction from the lower side of the rotating disc 32, starting from the horizontal rotating shaft 40 installed on the base plate 39. A plurality of cam followers 42 and 43 protrude from one side of the 38 and inclines with the horizontal cam surfaces 46 and 47 to the movable plate 45 which is slid to the upper surface of the base plate 39. Cam holes 50 and 51 having a cam surface 48 The cam follower 42 and 43 are formed in parallel with each other to contact the inclined cam surface 48, and the upper and lower two-stage flat gears 55 on the support 54 installed on the base plate 39 are formed. The upper small gear 56 is engaged with the rack 49 formed on the movable plate 45, and the first circular shaft 57 protruding from the upper center of the upper and lower two-stage flat gears 55 is the movable plate ( 45 is inserted into the first linear guide groove 58 formed on the bottom of the lower surface, and the direction change gear 60 and the disc rotation gear (40) meshed with the lower stand gear 59 of the upper and lower two-stage flat gears 55; 34, which are alternately engaged with the idle gear 61, are interlocked with the sun gear 63 which receives power from the drive motor 35 via the power transmission mechanism 70, and are rotated by the rotary link 64. Is connected to the central axis of the idle gear 61, the second circular shaft 65 is protruded from the upper center of the moving plate It is installed to enter and exit the idle gear turning prevention groove 68 having an entrance 67 formed on the bottom surface of the deck 45, the deck stop can detect the upper and lower stop position of the deck plate 38 A position detecting means 80 is provided, and in the conventional one provided with a chucking plate 92 for chucking the disk 30, the prime pulley 94 on the same axis as the upper and lower two-stage flat gears 55. ) Is installed, and the driven pulley 96 is pivotally installed on one side of the base plate 39, and the driven pulley 94 and the driven pulley 96 are connected through a belt 98, and the driven The chucking plate 92 was installed on the upper surface of the pulley 96 to be configured.

In the figure, reference numeral 71 denotes a driving pulley, 72 denotes a power pulley, 73 denotes a belt, 81 denotes a first dog, 82 denotes a second dog, and LSW denotes a limit switch. 83 shows a contactor of the limit switch LSW, 91 shows a motor shaft, and 92 shows a shaft hole formed on the support 54 to guide rotation of the upper and lower two-stage spur gears 55. 93 shows the turntable of the spindle assembly 36.

The operation and effect according to the embodiment of the present invention as described above will be described.

As shown in FIG. 4, the deck plate 38 is lowered, and the deck plate 38 is engaged with the idle gear 61 engaged with the disc rotation gear 34 and the disk change is completed. When the drive signal is raised from the control device such as a microcomputer (not shown), the drive signal for rotating the drive motor 35 in the direction of arrow B in the drawing of FIG. 35 is rotated in the direction of arrow B in the drawing, and at the same time rotated in the same direction as the drive pulley 71 to pull the belt 73 to rotate the electric pulley 72 and the sun gear 63 in the same direction. The idle gear 61 moves away along the outer circumference of the sun gear 63 by the rotary link 64 away from the disc rotation gear 34 and is engaged with the turning gear 60 to stop turning.

At this time, the idle gear 61 is rotated in the direction of the arrow C in the drawing of FIG. 2 and the lower standby gear 59 of the upper and lower two-gear gear 55 through the direction change gear 60 to be rotated in the same direction. At the same time, the upper small gear 56, which is integral with this, rotates in the same direction to linearly move the rack 49 of the rack 49 of the movable plate 45 engaged with it in the direction of arrow D in the figure.

In this process, the second circular shaft 65 protruding from the upper center of the idle gear 61 enters the idle gear turning preventing groove 68 through the entrance 67 of the idle gear turning preventing groove 68. The cam follower 42 and 43, which were placed on the horizontal cam surface 47 formed at the lower end of the cam holes 50 and 51 of the movable plate 45, have an inclined cam surface as the movable plate 45 is moved. 48, the deck plate 38 is also raised with the cam follower 42, 43 and the horizontal rotating shaft 40 as a starting point, the chucking plate 92 is the upper and lower two-stage gear 55 Power is received through the driving pulley 94 and the belt 98 and the driven pulley 96 to receive power from the movement to the upper side of the turntable 93.

If the operation continues as described above, the cam follower 42 and 43 reach the horizontal cam surface 46 formed at the upper end of the cam hole 50 and 51 so that the turning is stopped, and the deck plate 38 is raised. And the contact switch 83 of the limit switch LSW shown in FIG. 2 immediately touches the limit switch LSW. The signal is input to a control device (not shown) and the control motor rotates. The 35 is stopped to complete the lowering of the deck plate 38.

For reference, when the above process is completed, the disc can be played.

On the other hand, when the deck plate 38 is lowered in the above state, the driving motor 35 is rotated in the direction of the arrow E in the drawing by the command of a control device, not shown, and the idle gear 61 is shown in the drawing. It is rotated in the direction of the arrow F, the upper and lower two-stage spur gear 55 is rotated in the same direction through the directional gear 60 is engaged to move the moving plate 45 in the direction of the arrow G in the drawing Accordingly, the cam followers 42 and 43 descend from the horizontal cam surface 46 provided at the upper ends of the cam holes 50 and 51 on the inclined cam surface 48.

At this time, the idle gear 61 is subjected to self-power and the air power toward the disc rotation gear 34 at the same time, but the bulge in the upper center of the idle gear 61 and the second circular shaft 65 is the idle Since it is inserted into the gear turning preventing groove 68, the idle plate is not rotated, but only the deck plate 38 is lowered, and the chucking plate 92 is withdrawn from the turntable 93.

If the operation continues as described above, the first circular shaft (65) eventually exits through the entrance (67) of the idle gear turning preventing groove (68) and pivots by the air force to engage and rotate with the disc turning gear (34). The disc 32 is returned.

That is, since the distance from the center of the rotary link 64 to the contact surface of the idle gear turning preventing groove 68 is shortened to the entrance 67, the first circular shaft 65 is the idle gear turning preventing groove. Only by exiting from (68) is a turning movement possible.

The present invention as described above does not interfere with the rotational movement of the rotating disk to rotate during the disk change, as well as to prevent damage to the disk.

Claims (1)

The disc rotation gear 34 meshing with the internal internal gear 33 of the rotating disc 32 on which the plurality of disc mounting portions 31 on which the plurality of discs 30 can be mounted is formed. The rotating disc is rotated by receiving power from the rotating plate (38) on which the deck plate (38), on which the spindle assembly (36) and the optical pickup device (37) are mounted, is mounted on the base plate (39). 32, the pivoting movement is freely configured in the up and down direction, and a plurality of cam followers 42 and 43 protrude from one side of the deck plate 38, and the upper surface of the base plate 39 Cam cams 50 and 51 having horizontal cam surfaces 46 and 47 and inclined cam surfaces 48 are formed parallel to each other on the sliding plate 45 so that the cam followers 42 and 43 are parallel to each other. Is in contact with the inclined cam surface 48 and installed on the base plate 39. The upper small gear 56 of the upper and lower two-stage spur gears 55 on the sieve 54 is engaged with the rack 49 formed on the movable plate 45, and at the upper center of the upper and lower two-stage spur gears 55. The protruding first circular shaft 57 is fitted into the first linear guide groove 58 formed on the bottom surface of the movable plate 45 and engaged with the lower atmospheric gear 59 of the upper and lower two-stage flat gears 55. A sun gear 63 which receives power from the drive motor 35 via the power transmission mechanism 70 via an idle gear 61 alternately engaged with the direction change gear 60 and the disc rotation gear 34. And the central axes are connected to each other by the rotary link 64, and the second circular shaft 65 protrudes from the upper center of the idle gear 61 so as to lower the movable plate 45. The deck plate 38 is installed to enter and exit the idle gear turning preventing groove 68 having an entrance 67 formed on a surface thereof. A deck stop position detecting means 80 capable of detecting an upper and lower stop position is provided, and a chucking plate 92 for chucking the disk 30 is provided. 55) the driving pulley 94 is installed on the same axis, and the driven pulley 96 is pivotally installed on one side of the base plate 39, and the driving pulley 94 and the driven pulley 96 are belted. A disk chucking device for a compact disc changer, connected via (98) and configured by installing the chucking plate (92) on an upper surface of the driven pulley (96).