KR960008050B1 - Spindle assembly moving apparatus for mini/compact disk player - Google Patents

Abstract

a bracket (26) on the bottom of a base plate (24) in a mini/compact disk player having a single spindle assembly (16) with a spindle motor (10), a spindle shaft (120), and a turntable (14) forming a single pick-up device; a compact disk tray (18') and a minidisk tray (20); and a tray holder (22); an elevating plate (32) with an operating boss (30); a coupling link (38) whose one end is coupled with a moving plate (36) for elevating the tray holder (22) with respect to the turntable (14); and an operating link (42) for pushing the operating boss (30) on the elevating plate (32); and a spring (44) coupled with the base plate (24) and installed at both sides of the elevating plate (32).

Description

Spindle Assembly Lifting Device for Mini Disc Compact Disc Player

1 is an exploded perspective view of the present invention.

2 is a perspective view of the coupled state of FIG.

Figure 3 is a bottom perspective view of the spindle assembly lifting apparatus according to the present invention.

4 is a side view showing the spindle assembly position according to the disc type.

(a) is a side view which shows the spare assembly position at the time of playing a mini disc.

(b) is a side view which shows the spindle assembly position at the time of playing a compact disc.

* Explanation of symbols for main parts of the drawings

16: spindle assembly 24: base plate

30: operating boss 32: elevating plate

36: moving plate 38: coupling link

40: rotating shaft 42: operation link

44: spring

The present invention relates to a spindle assembly lifting device for a compact disc player for mini discs, and more particularly, to a mini disc and compact disc for selectively reproducing a mini disc and a compact disc using a single spindle assembly and a single pickup device. The present invention relates to a spindle assembly lifting apparatus for a compact disc player for mini discs, in which the height of the spindle assembly can be automatically adjusted according to the type of disc by the linear motion of the moving plate for moving the tray back and forth in the compact disc player.

In general, the mini-disc player and the compact disc player, which are widely used, have a problem that their use is very limited because each disc can be played exclusively.

Accordingly, in order to make up for the shortcomings of the conventional mini disc player or compact disc player, the use of a single spindle assembly and a single pick-up device has recently been possible to selectively reproduce the mini disc and the compact disc. The problem has been raised that this is very limited.

Accordingly, in order to make up for the shortcomings of the conventional mini-disc player or compact-disc player, a mini-disc combined compact can selectively play a mini-disc and a compact disc by using a single spindle assembly and a single pickup device. Disc player development is underway.

However, in order to selectively mount a mini disk or a compact disk on a turntable constituting the spindle assembly in a compact disk player having a single spindle assembly and a pickup device as described above, a compact disk tray and a mini disk tray are inevitably mounted. Is made of Shanghai heavy structure having a constant height difference, and the mini disk seating surface and the compact disk seating surface on the turntable constituting the spindle assembly must be formed at different heights, and the double tray structure having the height difference in this way In the double-ten table structure, the discs placed on each disc tray should always be kept at a constant distance from the pick-up device during the disc play operation, so that the height of the spindle assembly is adjusted according to the tray on which the disc is mounted. It is necessary to do

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and has a single spindle assembly and a single pickup device, and a compact disc player for a compact disc player having a shanghai-heavy structure in which a compact disc tray and a mini disc tray have a constant height difference. Install a lifting plate to adjust the height of the spindle assembly in combination with the spindle assembly consisting of a spindle motor, a spindle shaft and a turntable at a predetermined position on the bottom of the base plate, and the compact disc tray and the mini disc tray are combined. The type of disc is installed at the bottom of the rear end of the moving plate for moving the tray holder back and forth and up and down direction by installing the lifting plate operating means for moving the moving plate forward and backward straight and moving in the left and right direction of the lifting plate. Spin to match In value to provide a spindle assembly platform of a new type of one to adjust the height of the assembly automatically MiniDisc combine the compact disc player is aimed.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Spindle assembly lifting device of the compact disc player for mini-disc according to the present invention is a single spindle assembly consisting of a spindle motor 10, a spindle shaft 12 and a turntable 14, as shown in FIG. Compact disc tray 18 and mini disc tray 20 have a single pickup device and a mini disc combined compact disc of the type combined with a shanghai heavy structure having a constant height difference in the tray holder 22. In the player, it is coupled with a bracket 26 for holding the spindle assembly 16 at a predetermined bottom surface of the base plate 24, and holding the spindle assembly 16 at a predetermined position at the bottom surface of the base plate 24. The main surface is coupled to the bracket 26, and the bottom surface is moved left and right by a predetermined distance in a state sandwiched by a plurality of guide protrusions 28 protruding from the bottom of the base plate 24 The outer center portion is provided with a lifting plate 32 protruding the operation boss 30 of a constant height, and the tray holder 22 is raised and lowered with respect to the turntable 14 while being transported back and forth by the usual loading means (3 $). The coupling link 38 is rotated in the front-rear direction according to the linear movement of the moving plate 36 so that one end of the moving plate 36 is rotatably coupled to the mounting surface of the lower end of the moving plate 36. And, one end is rotatably coupled to the other end of the coupling link 38, the center of the upper surface is hinged to the bottom surface of the base plate 24 by the pivot shaft 40 is rotated on the elevating plate (32) The operation link 42 for pushing the operation boss 30 is installed, and both sides of the elevating plate 32 is characterized by the installation of a spring 44 having one end coupled to the base plate 24.

In the present invention, the lifting plate 30 is formed in a thin hexahedron shape having a predetermined width and length, and the longitudinal direction is positioned at a position corresponding to each of the guide protrusions 28 protruding from the bottom of the base plate 24. A guide hole 46 having a predetermined length is formed, and a height equal to the height difference between the mini disc seating surface and the compact disc seating surface formed on the ten table 14 constituting the spindle assembly 16 is formed at the inner central portion of the bottom surface thereof. The cam hole 44 is formed of a pair of lifting guide plate 50 is formed integrally with a predetermined interval.

Meanwhile, in the present invention, the guide pins 52 protrude from both sides of the bracket 26 on which the spindle assembly 16 is mounted, and on the bottom surface of the base plate 24 on which the lifting plate 32 is mounted. A pair of vertical guide plates 50 are bent into an inner side of the elevating guide plate 46 on the elevating plate 32, and a guide pin on the bracket 26 in the vertical direction in the center of the vertical guide plate 54. 52 is formed of a structure in which the vertical guide hole 52 is fitted. On the other hand, in the present invention, the operation link 42 has a structure formed in an arc shape in order to more certainly push the operation boss 30 protruding on the bottom surface of the elevating plate (32).

The operation of the present invention as described above is as follows.

When the user inserts and loads the mini disc cartridge onto the mini disc tray 20 to play the mini disc, as shown in FIG. 4A, the moving plate 36 is driven by the driving of the loading means 34. As the guide rod 32 protruding from the side of the tray holder 22 is linearly moved backward by a predetermined distance, the upper and lower guide holes 60 formed on the moving plate 36 are moved. The mini disc cartridge is caught on the upper stepped surface 64 and seated on the mini disc seating surface on the turntable 14 constituting the spindle assembly 16. In this state, the mini disc is rotated by pressing the play switch button. The pick-up autonomous is activated and regeneration is performed.

During the reproducing operation of the mini-disc, the spindle assembly 16 is maintained in a fixed state without being moved up and down.

On the other hand, if the user loads the compact disc in a state where the compact disc is mounted on the compact disc tray 18 located above the mini disc tray 20 by a certain height in order to play the compact disc, it is shown in FIG. As described above, as the moving plate 36 is moved backward by the driving of the loading means 34, the guide rod protrudes from the side surface of the tray holder 22 and fitted into the guide hole 60 on the moving plate 36 ( 58) is moved in a straight line by a predetermined distance and descends to the loading position to reach the upper step surface 62 of the guide hole 60 formed on the moving plate 36 in the 14th, the base plate 24 in this state In order to maintain the same distance as the pickup device on the upper and lowered by a height corresponding to the height difference with the mini disc tray 20 is located on the lower step surface (64).

At this time, in order for the tray holder 22 to descend from the position of the upper stepped surface 64 of the guide hole 62 formed on the moving plate 36 to the position of the lower stepped surface 64, the moving plate 36 is moved. More linearly moved backwards by a distance corresponding to the height difference, wherein the coupling link 38 coupled to the rear end lower portion of the moving plate 36 is pulled forward and coupled to the coupling link 38, The operation link 42 hinged to the bottom surface of the base plate 24 by the rotation shaft 40 is rotated about the rotation shaft 40 while being unfolded from the initial folded state.

As shown in FIG. 3 by the rotation operation, when the operation link 42 pushes the operation boss 30 fixedly installed at the center of the bottom of the lifting plate 30, the lifting plate 32 is moved by the guide hole 46. Moved by a distance, and thus the lifting guide plate 50 formed in the inner center of the lifting plate 32 is moved by the same distance, thereby protruding from the bracket 26 for holding the spindle assembly 16 The compact disk mounted on the compact disk tray 18 by lifting up the guide assembly 52 inserted into the cam hole 48 formed on the lifting guide plate 50 to lift the entire spindle assembly 16 is compact of the turntable. It is placed on the disk seating surface.

On the other hand, when the spindle assembly 16 is returned to the position where the mini-disc is mounted again, when the moving plate 36 is pulled, it is rotated in opposite direction to the actuating link 42 and at the same time, the restoring force of the spring 44 is applied to the lifting plate ( 32) to the original position.

According to the present invention, a mini disk mounting surface and a compact disk disk mounting surface formed on a turntable constituting a spindle assembly in a mini disk combined compact disk player in which a reproducing operation is performed by a single spindle assembly and a single pickup device are applied. The height difference is compensated by the action of the elevating plate, which moves up and down according to the linear movement of the moving player, so that mini discs and compact discs can be selected and reproduced more effectively, and the internal structure is simplified, making the product compact or thin. The effect is that you can.

Claims (2)

With a single spindle assembly 16 consisting of a spindle motor 10, a spindle shaft 12 and a turntable 14 and a single pick-up device, the compact disc tray 18 'and the mini disc tray 20 are tray holders. (22) Combined with a bracket 26 for holding the spindle assembly 16 in a predetermined position on the bottom surface of the base plate 24 to the mini-disc combined compact disc player of the combined structure of Shanghai heavy structure having a constant height difference therein And, the left and right flow by a predetermined distance in a state sandwiched by a plurality of guide projections 28 protruding from the bottom of the base plate 24, the lifting plate 32, the operation boss 30 of a certain height is formed in the bottom center portion One end is moved to the rear end lower portion of the moving plate 36 for elevating and transporting the tray holder 22 with respect to the turntable 14 while being moved back and forth by the usual loading means 34. The coupling link 38 and one end of which is pivotally coupled to the mounting surface of the rear end lower portion of the rate 36 and rotated in the front and rear directions according to the linear movement of the moving plate 36 are rotated at the other end of the coupling link 38. It is possible to be coupled, the upper surface center is hinged by the rotation shaft 40 to the bottom surface of the base plate 24 is rotated while installing the operation link 42 for pushing the operation boss 30 on the lifting plate 32 And, both sides of the elevating plate 32, one end of the spindle assembly lifting apparatus of a compact disc player for a mini-disc combined disk characterized in that the spring 44 is coupled to the base plate 24 is installed. 2. The spindle assembly elevating apparatus of claim 1, wherein the operation link is formed in an arc shape.