KR0141277B1 - Disk tray of an optical disk player - Google Patents

Abstract

The present invention relates to a tray device of an optical disc player, wherein a predetermined portion of the front end of the optical disc player is installed to protrude toward the front of the player body, and a plurality of disc mounting parts having different diameters are formed concentrically on the front part of the upper surface. A turntable guide hole is formed in the center, and a laser beam guide hole communicates with each other in the rear of the turntable guide hole. A tray having a rack gear formed along a longitudinal direction on one side of the bottom, and a rear end is always upward at a predetermined position behind the tray upper surface. It is installed to be installed up and down rotatable via an elastic member having an elastic force acting as a medium, a protective cover with a clamper fitted in a position corresponding to the vertical upper direction of the turntable guide hole, and the front end of the tray housing formed on the player body After the tray is installed in parallel at regular intervals, It consists of a pair of protective cover pressing members that press and close the protective cover during transfer, which shortens the loading time of the tray by shortening the loading distance of the tray in the optical disc player in which the disc loading operation is performed by the front loading and spindle assembly lifting method. At the same time, it is possible to shorten the sound or speech time and allow the user to observe the rotation of the disc in the playback mode.

Description

Tray device of optical disc player

1 is a schematic perspective view of a conventional optical disc player,

2 is an overall perspective view of an optical disc player to which the tray device of the present invention is applied;

3 is an exploded perspective view of the present invention,

4 is a plan view of the bonded state of the present invention,

5 is a cross-sectional view taken along line A-A of FIG.

6 is a side cross-sectional view of an operating state of the present invention.

* Explanation of symbols for main parts of the drawings

30: tray device 36: tray

38: protective cover 48: elastic member

50: clamper 52: protective cover pressing member

54: mounting groove 60: groove

62: curved portion 64: reflector

66: light emitting diode 68: viewing window

72: compression coil spring 76: pressure roller

The present invention relates to a tray apparatus of an optical disc player, and more particularly, in a optical disc player in which a disc loading operation is performed by a front loading and a spindle assembly lifting method, a predetermined portion of the tray protrudes toward the front of the player body. The present invention relates to a tray apparatus for an optical disc player, which shortens the time required to shorten the replacement time of the disc and shortens the sound output or sound output time.

In general, in the front-loading optical disc player, the tray 10 has a rectangular parallelepiped shape of a predetermined size, as shown in FIG. 1, and a turntable guide hole 12 is formed at the center thereof, A disk mounting portion 14 constituting a concentric circle is formed around the turntable guide hole 12. A rear side of the turntable guide hole 12 is installed on a deck below the disk that is mounted on the turntable and rotates. The laser beam guide hole 16 is formed so that the laser beam irradiated from the pick-up apparatus that reads the information recorded on the recording surface on the disk can pass while linearly moving in the radial direction of the disk. The rack gear 20 which is installed at a predetermined position inside the main body 18 and meshes with the feed pinion constituting the tray conveying means has a longitudinal direction. It comprises a structure formed in accordance with.

However, in the tray structure of the conventional optical disc player made as described above, the entire tray 10 is stored in the player body 18 in the play mode or the stop mode, so that the tray 10 is replaced by the player body 18 for disc replacement. In the case of discharging to the front of the tray), since the front and rear conveying distance of the tray 10 becomes longer, the disk replacement takes a relatively long time, and thus there is a problem that the sound output or the fire time becomes long. As the loading distance is increased, a large load is applied to the loading motor constituting the tray transfer means, thereby increasing power consumption.

The present invention is to solve the above-mentioned problems, the object is to reduce the replacement time of the disc by shortening the loading distance of the tray in the optical disc player in which the disc loading operation by the front loading and spindle assembly lifting method and At the same time, it is to provide a tray apparatus for a new type of optical disc player that can shorten the sound output or speech time and allow the user to observe the rotational motion of the disc in the playback mode.

In order to achieve the above object, the present invention has a predetermined portion protruding toward the front of the player body during storage, and a plurality of disc mounting portions having different diameters are formed concentrically on the front surface of the top surface, The turntable guide hole is formed so that the laser beam guide hole communicates with each other at the rear of the turntable guide hole, and a tray having a rack gear formed along a longitudinal direction at one side of the bottom surface, and a rear end always acting upward at a predetermined position behind the tray upper surface. It is installed to be pivoted up and down via an elastic member having an elastic force, and a protective cover fitted with a clamper at a position corresponding to the vertically upward position of the turntable guide hole, and above the front end of the tray housing formed on the player body. It is installed in parallel at regular intervals to remind the tray when moving backward. It has a feature that consists of a pair of protective cover pressing member for pressing and closing the protective cover.

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

2 is an overall perspective view of an optical disc player provided with a tray device 30 according to the present invention. The tray of the present invention has a tray (34) formed at a predetermined depth from a predetermined position in front of the player body (32). 36 is provided to protrude in a state covered by the protective cover 38.

3 is an exploded perspective view of the tray device of the optical disk player according to the present invention, the tray device 30 of the present invention is formed so that the front end of the predetermined portion protrudes toward the front of the player body 32, the diameter of the upper surface A plurality of different disk mounting portion 40 is formed concentrically, the turntable guide hole 42 in the center of the disk mounting portion 40, the laser beam guide hole 44 behind the turntable guide hole 42 ) Is formed in communication with each other, the bottom side of the tray 36 of the structure in which the rack gear 46 is formed along the longitudinal direction, and the rear end is an elastic force that always acts upward at a predetermined position behind the upper surface of the tray 36 A protective cover 38 having a clamper 50 fitted therein at a position corresponding to the vertically upward position of the turntable guide hole 42 by being installed so that the front end is pivotally installed via the elastic member 48 having the Pressing a pair of protective covers that are installed in parallel with a predetermined interval in front of the tray storage portion 34 formed on the main body 32 with a predetermined gap therebetween to press and close the protective cover 38 during the rear conveyance of the tray 36. The structure which consists of the members 52 is shown.

In the present invention as described above, the tray 36 is formed side by side with a predetermined interval between the mounting grooves 54 of a predetermined width at both rear and predetermined positions of the upper surface, the left and right both walls of the respective mounting grooves 54 From the hinge shaft 56 of a predetermined length is protruded, the rear end of the protective cover 38 corresponding to each of the mounting grooves 54 has a size slightly smaller than the width of the mounting grooves 54 and bearing holes on both sides thereof The coupling piece 58 on which the 56a is formed is bent downward.

On the other hand, in the present invention, the tray 36 is made of a curved portion 62, the tip portion of which is formed with a groove 60 of a predetermined depth therein, the reflecting mirror 64 is attached to the inner surface of the groove 60 On the bottom surface of the groove 60, a plurality of light emitting diodes 66 which emit light according to the application of a reproduction signal are installed side by side at a predetermined interval, and a viewing window 68 is attached to the upper portion of the groove 60. Indicates.

On the other hand, in the present invention, the protective cover 38 is made of a transparent material such as acrylic resin.

On the other hand, in the present invention, the protective cover pressing member 52 is inserted into the case 70 formed on the panel above the front end of the tray housing 34, the compression coil having an elastic force that always acts downward A spring 72 and a compression roller 76 axially coupled to the bracket 74 coupled with the compression coil spring 72 to rotate arbitrarily in the front and rear directions.

4 is a plan view of the coupling state of the present invention, which shows a state in which the tray 36 is accommodated in the player body 32, and the tray 36 has a curved surface protruding from the front of the player body 32. As shown in FIG. Part 62 is formed, the part accommodated in the tray storage portion 34 is formed in a rectangular parallelepiped, the front surface of the upper surface of the turntable guide hole 42, the disk mounting portion 40 having a different diameter While being formed concentrically, the feed pin 80 constituting the conventional tray transfer means 78 is engaged with the front end of the rack gear 46 formed at the bottom of the tray 36, and the upper and rear surfaces of the tray 36 are engaged. The mounting grooves 54 formed on both sides thereof are rotatably coupled to the hinge shaft 56 via the elastic member 48 while the coupling piece 58 of the rear end of the protective cover 38 is fitted, and the tray 36 is rotated. In the groove 60 inside the curved portion 62 formed at the front end of the Light Dyer de (66) are installed at regular intervals, the receiving tray 34, the upper front end on both sides on the player main body (32) shows a structure with a pair of protective cover holding member 52 is installed.

5 is a cross-sectional view taken along line AA of FIG. 4, in which a deck 88 having a spindle assembly 84 and an optical pickup device 86 installed below the base plate 82 inside the player body 32 is mounted on the rolling cam 90. It is installed to be elevated in the vertical direction by the tray, the tray 36 is formed inside the tray storage portion 34 formed above the base plate 82, the tray 36 is received in a state coupled with the protective cover 38, the tray 36 The disk 92 is mounted on the disk mounting portion 40 formed in front of the upper surface of the upper surface of the disk), and the disk 92 is compressed by the clamper 50 fitted on the protective cover 38, and the lower surface of the tray 36. At the tip of the rack gear 46 formed in the longitudinal direction of the rack gear 46, the transfer pinion 80 constituting the conventional tray transfer means 78 is engaged, and the mounting groove 54 formed at the rear of the upper surface of the tray 36 is In the state that the engaging piece 58 of the rear end of the protective cover 38 is fitted through the elastic member 48. It shows a structure rotatably coupled to the hinge axis (56).

On the other hand, a reflector 62 is attached to the inner surface of the recess 60 inside the curved portion 62 at the tip of the tray 36, and a plurality of light emission emitted on the bottom surface of the recess 60 in response to the application of a reproduction signal. The diode 66 is installed, and the viewing window 68 is attached to the upper portion of the recess 60, and the inside of the player main body 32 corresponding to the front end of the tray housing 34 is always downward. A pair consisting of a compression coil spring 72 having an elastic force acting, and a pressure roller 76 axially coupled by a bracket 74 coupled with the compression coil spring 72 and randomly rotated in the front and rear directions while moving up and down elastically. Indicates that the protective cover pressing member 52 is installed.

Referring to the operation of the present invention made as described above is as follows.

As shown in FIG. 5, the tray 36 is accommodated in the tray storing portion 34 in the player body 32, and the protective cover 38 mounted on the upper surface of the tray 36 presses the protective cover. Pressed by the action of the member 52 and closed on the upper surface of the tray 36, the turntable 94 is inserted through the turntable guide hole 42 formed in the center of the disk mounting portion 40 of the tray 36 The disk 92 is seated on the turntable 94, and at the front end of the rack gear 46 formed on the ground of the tray 36, the initial feed pin 80 constituting the conventional tray transport means 78 is engaged. When the user presses the tray eject switch to take out the tray 36, the rolling cam 90 is rotated in a predetermined direction so that the deck 88 on which the spindle assembly 84 and the optical pickup device 86 are installed descends. The turntable 94 is disengaged from the state in which the disk 92 is supported. At the same time, the tray 36 is linearly moved forward of the player body 32 by the action of the tray conveying means 78 and the conveying pinion 80.

In this way, when the tray 36 is transported to the front of the player body 32, the protective cover 38 mounted on the upper surface of the tray 36 by the pressure roller 76 constituting the protective cover pressing member 52 It is released from the state of being pressed and closed, and at the same time, the front end is lifted upward by the hinge engagement part of the rear end by the return force of the elastic member 48. As shown in FIG.

In this state, when the user replaces the disk 92 and then presses the tray closing switch again, the tray transfer means 78 and the feed pinion 80 are rotated in the reverse direction, and the tray 36 is conveyed backward. At the same time, it is pressed by the pressure roller 76 from the rear end of the protective cover 38 and closed again.

In this way, the tray 36 is accommodated in the tray storage part 34, the protective cover 38 is closed, and the spindle assembly 84 and the optical pickup device 86 are rotated by the reverse rotation of the rolling cam 90. ) Deck 88 is raised, the disk 92 is pressed by the clamper 50 fitted to the protective cover 38 in a state seated on the turntable 94.

In this way, when the user designates the track number and presses the playback switch in the state where the disk 92 is completed loading, the turntable 94 and the disk 92 are rotated, and at the same time, the optical pickup device 86 is connected to the disk 92. The linear information is linearly moved from the bottom of the bottom to reproduce the information recorded on the disk 92.

At this time, the light emitting diode 66 installed in the groove 60 inside the curved portion 62 at the tip of the tray 36 emits light and emits light through the viewing window 68 and the transparent protective cover 38. The rotation state of (92) can be observed.

According to the present invention, since a certain portion of the tray is installed to protrude toward the front of the player body in the stop mode, the loading distance of the tray is shortened, thereby reducing the sound output or speech time and reducing the power consumption. It is effective, and the unique feature can enhance the image of the product.

Claims (4)

When storing, a predetermined portion of the front end is installed to protrude toward the front of the player body 32, a plurality of disk mounting portion 40 having a different diameter is formed concentrically on the front surface of the upper surface, the turntable in the center of the disk mounting portion 40 The guide hole 42 is formed in the rear of the turntable guide hole 42 so that the laser beam guide hole 44 is in communication with each other, the tray 36 formed with a rack gear 46 along the longitudinal direction on one side of the bottom surface. Wow; A rear end is installed to be pivoted up and down by means of an elastic member 48 having an elastic force that always acts upward at a predetermined position behind the upper surface of the tray 36, and corresponds to the vertically upward direction of the turntable guide hole 42. A protective cover fitted with a clamper 50 at a position to be provided; A pair of protective cover pressing members are installed in parallel with a predetermined gap in front of the tray storage part 34 formed on the player body 32 so as to press and close the protective cover during the rear conveyance of the tray 36 ( 52) The tray apparatus of the optical disc player, characterized in that consisting of. According to claim 1, wherein the tray 36 is formed on both sides of the rear of the upper surface of the mounting grooves 54 of a predetermined width side by side with a predetermined interval therebetween, both left and right walls of each of the mounting grooves 54 From the hinge shaft 56 of a predetermined length protrudes, the rear end of the protective cover 38 corresponding to each of the mounting grooves 54 has a size slightly smaller than the width of the mounting grooves 54 and bearings on both sides thereof. The tray device of the optical disc player, characterized in that the coupling piece 58 formed with the ball (56a) is bent downward. According to claim 1, wherein the tray 36 is a front end portion is made of a curved portion 62 is formed with a groove 60 of a predetermined depth therein, the reflecting mirror 64 is attached to the inner surface of the groove 60 On the bottom surface of the groove 60, a plurality of light emitting diodes 66 emitting light according to the application of a reproduction signal are installed side by side at a predetermined interval, and a viewing window 68 is attached to the upper portion of the groove 60. An optical disc player tray device. The compression coil spring of claim 1, wherein the protective cover pressing member (52) is fitted inside the case (70) formed on the panel above the front end of the tray storage portion (34) and has an elastic force that always acts downward. And 72, and a pressure roller 76 axially coupled by a bracket 74 coupled with the compression coil spring 72 to rotate randomly in the front-rear direction.