KR0141273B1 - Rising and falling apparatus of deck assembly for a compact disk changer - Google Patents

Abstract

The present invention has a high durability and a plurality of discs on which a plurality of discs 30 can be mounted to provide a deck plate lifting device of a compact disc changer that can give a driving force to a rotating disc for disc change and a deck plate using a single motor. The disc turning gear 34 meshing with the inner circumferential gear 33 of the rotating disc 32 on which the mounting part 31 is formed is rotated by receiving power from the drive motor 35, and the spindle assembly 36 and The deck plate 38 on which the optical pickup device 37 is mounted is freely configured to rotate upward and downward from the bottom of the rotating disc 32 based on the horizontal rotating shaft 40 installed on the base plate 39. In the deck plate elevating device of the compact disk changer, a plurality of cam followers 42, 43 are projected from one side of the deck plate 38, and the base play is carried out. Each cam follower is formed by parallelly forming cam holes 50 and 51 having horizontal cam surfaces 46 and 47 and inclined cam surfaces 48 on the movable plate 45 slid to the upper surface of the 39. (42) (43) are brought into contact with the inclined cam surface (48), and the upper small gear (56) of the upper and lower two-stage spur gears (55) is mounted on the support (54) provided on the base plate (39). The first circular shaft 57 engaged with the rack 49 formed on the upper surface 45 and protruding from the upper center of the upper and lower two-stage spur gears 55 is the first linear guide formed on the bottom surface of the movable plate 45. It is installed so as to fit in the groove 58, the idle gear alternately engaged with the direction change gear 60 and the disc rotation gear 34 engaged with the lower stand gear 59 of the upper and lower two-stage spur gears 55 ( 61 is installed on the rotary link 64 at the same time as the power transmission mechanism 70 to be engaged with the sun gear 63 which receives power from the disc turning gear 34. And an idle gear turning prevention groove having a doorway 67 formed on the bottom surface of the movable plate 45 by connecting the center side to each other and protruding the second circular side 65 from the upper center of the idle gear 61. While installed so as to enter and exit 68, the deck stop position detecting means 80 capable of detecting the upper and lower stop position of the deck plate 38 is provided.

Description

Deck plate hoisting 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 deck plate lifting device of the compact desk changer according to the present invention

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

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

* Explanation of symbols for the 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 rotating shaft 42,43: cam follower

45: moving plate 46,47: horizontal cam surface

48: slope cam surface 49: rack

50, 51: cam life 54: support

55: upper and lower two-stage spur gears 56: upper and lower gears

57: first circular side 58: first straight guide groove

59: lower side standby gear 60: direction change gear

61: children gear 63: sun gear

64: rotary link 65: second circular side

67: entrance 68: idle gear turning prevention home

70: power transmission mechanism 71: drive pulley

72: electric pulley 73: belt

80: deck stop position detection means 81: first dog

82: second dog LSW: limit switch

83: contactor

The present invention relates to a deck plate elevating device of a compact disk changer, and more particularly, using a single motor in a top-loading compact disc changer, using a rotating disk and a deck plate. It relates to a deck plate lifting device of a compact disc changer capable of raising and lowering.

In general, the compact disc changer refers to a device that automatically exchanges discs in the compact disc player when a user loads several compact discs and selects a disc to play. Since the disk exchange is possible only when the tentable coupled with the disk must be detached from the disk beforehand, the deck plate lifting devices are paired with the compact disk changer.

One example of the conventional deck-flat lifting device as described above is shown in FIG. 1, but as shown in FIG. 1, a plurality of disks 12 are mounted on the plurality of disk mounting parts 11 provided on the rotating disc 10. FIG. In the disc change, the rotary disc 10 is divided by a rotational motor, which is not shown in the figure, and the bottom plate 15 is provided with a spindle assembly 13 and an optical pickup device 14 below. ) Is installed so that the circular motion in the vertical direction by the horizontal rotating shaft (16) is free, and one side of the deck plate (15) has a cam follower (17) protruding from the base plate (not shown) It is pinched in a spiral cam groove 19 formed in the installed cylindrical cam 18, the cylindrical kna 18 is rotated in place by receiving the rotational force of the cam rotation motor 21 through the reduction gear group 20 Followers the cam (17) fitted in the cam groove 19, and is adapted to the circular arc movement in the direction.

However, the disc-only motor (not shown) and the cam-powered motor 21 are uneconomical in terms of component utilization because one stops and makes fun of the other.

The present invention has been made to solve the above problems, the deck plate made before and after the compact disc change can not damage the disc during the lifting movement, high durability, using a single motor disc for rotating disc The aim is to provide a deck plate elevating device for a compact disc changer that can provide driving power to the deck plate and the deck plate.

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, and a spindle. In the deck plate lifting apparatus of the compact disc changer, the deck plate on which the assembly and the optical pick-up device are mounted is freely configured with a linear member from the lower side of the rotating disc, starting from the horizontal rotating shaft installed on the base plate. A plurality of cam followers are projected from one side of the deck plate, and a cam hole having a horizontal cam surface and an inclined cam surface is formed side by side on a movable plate slidly coupled to the upper surface of the base plate so that each cam follower is inclined. In contact with the cam hole, the base plate The upper gear of the upper and lower two-stage spur gears is engaged with the rack formed on the movable plate on the installed support, and the first circular shaft protruding from the upper center of the two upper and lower two-stage spur gears is formed on the bottom surface of the movable plate. It is installed so as to fit in the linear guide groove, and the idler gear which is alternately engaged with the lower stand gear of the upper and lower two-stage flat gears and the idler gear alternately to the disk rotation gear is a power transmission mechanism for power from the disk rotation gear. The gears to be engaged with the sun gear receiving the transmission, and at the same time connect the central axes of each other by the rotary link, and project the second circular axis from the upper center of the idle gear to prevent the idle gear turning with the entrance formed on the bottom surface of the movable plate. Deck stop that can be installed to enter the groove, while detecting the upper and lower stop position of the deck plate Configuration having a value detector value landing deck plate of the compact disc changer is provided.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a deck plate lifting apparatus of a compact disc 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 deck plate lifting device of the compact disc changer according to the present invention, as shown in the drawing, a plurality of disc mounting portions 31 capable of mounting a plurality of discs 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 Of the compact disc changer having a deck plate 38 mounted thereon, which 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. In the deck plate elevating device, a plurality of cam followers 42, 43 protrude from one side of the deck plate 38, and the horizontal cam surfaces 46, 47 and the inclined cam surface Cam hole with 50 ) 51 are formed in parallel with each other, the cam follower 42, 43 is in contact with the inclined cam surface 48, the upper and lower two-stage spur gear on the support 54 provided on the base plate 39 The first circular shaft 57 which engages the upper small gear 56 of the 55 with the rack 49 formed on the movable plate 45 and protrudes from the upper center of the upper and lower two-stage spur gears 55 is It is installed so as to fit in the first linear guide groove 58 formed on the bottom surface of the movable plate 45, and the direction switching gear 60 is engaged with the lower stand gear 59 of the upper and lower two-stage flat gear 55 The idle gear 61 alternately engaged with the disk rotation gear 34 is installed to engage the sun gear 63 which receives power from the disk rotation gear 34 via the power transmission mechanism 70 as a medium. At the same time, by connecting the central axis of each other by the rotary link 64, the second cylindrical shaft 65 is projected from the upper center of the idle gear (61). By installing to enter and exit the idle gear turning preventing groove 68 having an entrance 67 formed on the bottom surface of the movable plate 45, it is possible to detect the upper and lower stop position of the deck plate 38 The deck stop position detection means 80 was comprised.

Here, the movable plate 45 is formed in a L-shape.

The power transmission mechanism 70 is provided with a drive pulley 71 on the drive motor 35, and the drive pulley by integrally forming an electric pulley 72 coaxial with this on the lower side of the sun gear 63. The 71 and the electric pulley 72 were connected by the belt 73, and were comprised.

In addition, the deck stop position detecting means 80 to the first plate 81 and the second dog 82 on the moving plate 45 to the distance corresponding to the maximum moving distance of the moving plate 45. Although this limit switch LSW is installed on the support body 54 so that the contact point 83 of the limit switch LSW is located between them, it is not limited to this and a general light shielding piece and photo interruption are provided. It can also be installed on the stator side and the mover side so that the position can be detected.

In the figure, reference numeral 91 denotes a motor shaft, 92 denotes a shaft hole formed on the support body 54 for guiding rotation of the upper and lower two-stage spur gears 55, and 93 denotes the spindle assembly 36. Represents a turntable.

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 completed when the idle gear 61 is engaged with the disc rotation gear 34 and the disk change is completed. When the driving signal is outputted from the control device such as a microcomputer (not shown) to rotate the driving 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 figure of FIG. 2 and the lower standby gear 59 of the upper and lower two-gear gear 55 through the direction change gear 60 is rotated in the same direction. At the same time, the upper small gear 56 integral with this also rotates in the same direction to linearly move 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, and the deck plate 38 is also raised upward with the cam follower 42, 43 starting from the horizontal rotating shaft 40 as a starting point.

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 contacts the limit switch LSW. The limit switch LSW is quenched and the signal is input to a control device (not shown). 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 the gear turning prevention groove 68 is inserted, the deck plate 38 is lowered by rotating only without rotation.

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 rotate in engagement with the disc turning gear 34. The disc 32 is returned.

In this process, when the first dog 81 touches the contactor 83 of the limit switch LSW and turns the limit switch LSW on or off, when the power is cut off and then on again, the present state is not shown in the control device. It will tell you what status it is.

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 becomes shorter toward the doorway 67, the first circular shaft 65 is the idle gear turning preventing groove. Only after exiting from (68) is a turning movement possible.

The present invention as described above can give a driving force to both the movement of the rotating disc and the deck plate by using one motor alternately has the effect of maximizing component utilization.

Claims (3)

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, and the deck plate 38 on which the spindle assembly 36 and the optical pickup device 37 are mounted is started on the horizontal rotating shaft 40 provided on the base plate 39. In the deck plate elevating device of the compact disc changer, which is freely swinged upward and downward from the bottom of (32), the cam follower (42) (43) is turned from one side of the deck plate (38). In addition, cam holes 50 and 51 having horizontal cam surfaces 46 and 47 and inclined cam surfaces 48 are formed parallel to each other on the movable plate 45 slid to the upper surface of the base plate 39. Each cam follower 42, 43 is in contact with the inclined cam surface 48 The upper and lower gears 56 of the upper and lower two-stage spur gears 55 on the support body 54 installed on the base plate 39 are engaged with the rack 49 formed on the movable plate 45. The first circular shaft 57 protruding from the upper center of the two-stage spur gear 55 is installed to fit into the first linear guide groove 58 formed on the bottom surface of the movable plate 45, and the upper and lower two-stage spur gears. The disk using the power transmission mechanism 70 as a medium between the direction shift gear 60 engaged with the lower stand gear 59 of the 55 and the idle gear 61 alternately engaged with the disk rotation gear 34. It is installed so as to engage with the sun gear (63) receiving power from the rotary gear (34) and at the same time connect the central axes of each other by the rotary link (64), the second circular shape from the upper center of the idle gear (61) Idle rotation prevention with an inlet 67 formed on the bottom surface of the movable plate 45 protruding the shaft 65 The deck plate of the compact disc changer, comprising a deck stop position detecting means (80) capable of sensing the upper and lower stop positions of the deck plate (38) while being installed in and out of the groove (68). Lifting device. According to claim 1, The power transmission mechanism 70 is provided with a drive pulley (71) in the drive motor 35, the electric pulley (72) coaxially with the lower side of the sun gear (63) is integrated. Deck plate lifting device of the compact disc changer, characterized in that formed by connecting the drive pulley (71) and the electric pulley (72) by a belt (73). 2. The deck stop position detecting means (80) according to claim 1, wherein the deck stop position detecting means (80) corresponds to the maximum travel distance of the first dog (81) and the second dog (82) on the movable plate (45). The deck plate of the compact disc changer, which is formed by installing the limit switch LSW on the support body 54 so that the contact point 83 of the limit switch LSW is positioned between them. Lifting device.