KR100290760B1 - Record carrier playback device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium reproducing apparatus, and more particularly, an operation unit for switching to a loading structure of a feeding power source and a loading operation unit using the same power generating means as a power source, thereby introducing or discharging a tray for accommodating a recording medium. And a recording medium reproducing apparatus configured to realize a loading operation, comprising: a tray in which guide means (G) formed on both sides of the main base (100) and a pickup base (300) having a pickup portion (310) are integrally formed ( 200 and the lifting means (B) for preventing the lifting of the tray 200 during the linear reciprocating operation while being guided by the guide means (G), and the power generating means (F) installed at one end of the tray (200). A power transmission means formed to be engaged with the power transmission unit; It is installed in the lower position of the power transmission means is composed of restraining means (E) for temporarily restraining the operation of the tray 200.

Description

Record carrier

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium reproducing apparatus, and more particularly, an operation unit for switching to a loading structure of a feeding power source and a loading operation unit using the same power generating means as a power source, thereby introducing or discharging a tray for storing a recording medium. And a recording medium reproducing apparatus for realizing a loading operation.

In general, a recording medium apparatus constituting a series of mechanism operations in which a recording medium is introduced into a main body, seated on a turntable, and ready for playback is provided. The tray 10 for mounting the recording medium D as shown in FIG. And a rack gear 11 provided on the inner side of the tray 10 and a loading motor M1 separately installed on the base 20 in which the rack gear 11 is fixed inside the main chassis body 1. Engaging with the loading gear (G1) to be installed so that the tray 10 is pulled in while moving straight into the body (1).

Next, stepping is a power source for feeding the spindle motor M2, the pickup unit 31 and the pickup unit 31 so that the tray 10 and the recording medium D can be smoothly drawn into the main body 1. The pickup base 30 equipped with the motor M3 is coupled to the first anti-vibration rubber 32 at both ends thereof with a vibration margin to the base 20, and the second anti-vibration rubber 33 is installed at the other side.

At this time, the up / down gear G3 coupled to the up / down plate 40 rotatably supported by the rotation shaft P on the base 20 has a side surface as shown in FIG. 1B. Constrained by the cylindrical cam 41, the pick-up base 30 sits down and the turntable T descends to a position where the tray 10 and the recording medium D are not caught.

Subsequently, when the tray 10 loaded with the recording medium D is driven to the final retracted position as shown in FIG. 2A by the rotation of the loading gear G1 subjected to the driving force of the loading motor M1, the loading gear G1 is moved. As the tray 10 moves away from the rack gear 11, the straight pulling motion into the main body 1 ends and the loading gear G1 is engaged with the internal gear 12 of the tray 10. The up / down gear G3 is rotated by the lever gear G2 which rotates the rotation shaft P of 20) as a support point.

As a result, the projection 42 of the up / down plate 40 that is restrained by the cylindrical cam 41 is pressed, so that the up / down plate 40 supports the hinge shaft P as shown in FIG. 2B. Rotates to pick up the base 30 and slides the turntable T into the clamping hole of the retracted recording medium D to separate the recording medium D from the tray 10.

At this time, the clamper 51 mounted on the clamp plate 50 fixed to the main body 1 coincides with the turntable T on which the recording medium D is completely fixed to the turntable T.

Accordingly, as shown in FIG. 2A, the retracting operation of the recording medium D is completed and the separate sensing switch ″ on ″ is not shown, thereby stopping the rotation of the loading motor M1.

However, the recording medium reproducing apparatus operated as described above uses a dedicated loading motor M1 as a driving source of power in carrying out a loading operation for pulling in / ejecting the tray 10, and also for spindle and pickup. Since at least three drive motors are used for feed and loading, the configuration of the mechanism is complicated, and space occupancy and manufacturing cost of the recording medium device are increased due to the use of several unnecessary motors.

The present invention is to solve the above-described drawbacks, and to realize the input / discharge operation of the tray using the power generating means for driving the feeding operation of the pickup portion.

Another object is to simplify the configuration of the power connection and interruption structure between the two operating portions by forming the pickup base integrally on the tray.

In order to achieve the above object, the present invention provides a recording and reproducing apparatus for recording or reproducing information, comprising: a spindle motor for seating and rotating a recording medium, and a pickup having a pickup unit for recording or reproducing information of the recording medium. Since the base is integrally installed on the tray, its technical configuration features are endowed.

In addition, the pickup unit and the tray formed integrally with the pickup base and the pickup base is characterized in that to implement the inlet or discharge and loading operation from the main base by a single power generating means.

1A is a plan view showing a conventional recording medium reproducing apparatus;

1B is a side view of a conventional recording medium reproducing apparatus;

2A and 2B are views showing an operation state of a conventional recording medium reproducing apparatus;

Figure 3a is a plan view of the main base of the present invention, Figure 3b is a front view thereof,

4A is a plan view of the tray of the present invention, and FIG. 4B is a front view thereof;

5A is a plan view of the pickup base of the present invention, and FIG. 4B is a front view thereof;

Figure 6a is a plan view of the power generating means of the present invention, Figure 6b is a side view thereof,

7 is a front view of the recording medium reproducing apparatus of the present invention;

8A to 8F are diagrams showing an operating state of the recording medium reproducing apparatus of the present invention;

<Description of the reference numerals for the main parts of the drawings>

100: main base 101: guide protrusion 102: hook portion

103: hook protrusion plate 104: rack gear 105: stopper

106: detection plate 200: tray 201: guide

202: boss 203: jungle pillar 210: loading gear

211: belt latch 212: spur gear 220: stop hook

221,363: guide protrusion 300: pickup base 301: dustproof hole

302: anti-vibration rubber 310: pickup 311: guide feed

312: feed shaft 313: hook 320: loading motor

321: support plate 330: rotation axis 331: screw bone

332: weapon gear 340: worm gear 350: children gear

360: moving gear 361: rotating plate 362: bearing part

363: guide protrusion 370: connector 371: first connector protrusion

372: second connector protrusion 400: main slider 401,402,403,404: guide

410: guide rod 420: emergency eject rod E: restraining means

G: Guide means F: Power transmission means S: Switch

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a diagram showing a recording medium reproducing apparatus of the present invention, and FIG. 5 is a diagram showing a state in which a vibration preventing device for preventing vibration of a tray of the recording medium reproducing apparatus of the present invention is installed.

First, the overall configuration of the recording medium reproducing apparatus of the present invention will be described in largely divided into three parts of the main base 100, the tray 200, and the pickup unit 300.

As shown in FIG. 3A, the main base 100 is rotatably coupled to one side with an emergency lever 110 as a support point, and the tray 200 is raised on both sides of the main base 100 so as to be straight. Guide means (G) for reciprocating are installed. That is, the guide means (G) is a guide protrusion bar 101 formed on the left and right sides of the main base 100 shown in Figs. 3a to 4b or 7 and the width of the guide protrusion bar 101 It is composed of a sliding guide path 201 is formed on both sides of the lower end of the tray 200, the guide protrusions 101 and the sliding guide path 201 is formed at least eight left and right, respectively.

In addition, the lifting prevention means (B) for preventing the lifting up in the straight reciprocation of the tray 200, the left and the left of the main base 100 to prevent the guide path 201 of the tray 200 is separated It consists of the hook part 102 formed in at least 8 places at the right side.

Particularly, one of the hook portions 102 is provided with a hook protrusion plate 103 to catch the restraining means E shown in FIG. 4A or 7, and at one end of the tray 200 on the side wall. The rack gear 104 is formed so that the installed power generating means (F) is engaged and moved.

In addition, a stopper 105 for blocking the tray 200 moving forward by the power generating means (F) is formed, as shown in Figure 4b in a position at a predetermined interval from the emergency lever 110, as shown in FIG. As described above, the detection plate 106 is installed at one end of the tray 200 to detect the position of the switch S, which is a detection means for detecting the insertion completion of the tray 200.

Next, as shown in FIG. 4A, as shown in FIG. 4A, the stopper 220 for being caught by the hook protrusion plate 103 formed on the main base 100 is freely rotatable around the pivot shaft P as a supporting point. The belt engaging portion 211 and the spur gear 212 are formed in two stages with the pivot shaft P concentrically as shown in the enlarged view of the main portion A of FIG. 4A or 4A on the upper side of the stopper 220. The gear 210 is rotatably installed, and the dustproof coupling boss 202 is coupled to the bottom of the tray 200 so as to be combined with the dustproof rubber 302 inserted into the dustproof hole 301 shown in FIG. 5A. At least three or more are formed, the push pillar 203 is pushed by the emergency lever 110 installed in the main base 100 is formed on the front.

On the other hand, the completion detection switch (S) for detecting the discharge completion position during the loading operation of the tray 200 is fixed to the lower end of the tray 200.

Next, as shown in FIG. 5A or FIG. 5B, the pickup base 300 has a spindle motor M2, which is a power generating means F, fixed by the pickup base 300 as a mother, and this spindle motor M2. Is a ball locking device (t) on the turntable (T) so that the user presses the recording medium (D) and is not released during rotation.

Meanwhile, a guide feed 311 having a thread formed on the pick-up part 310 is fixed to the side, and the guide feed 311 may receive power from the loading motor 320 which is a power generating means.

The loading motor 320 has a support plate 321 is formed as shown in Figure 6a or 6b, the support plate 321 is fixed to the pickup base 300 by a fastening means.

In addition, the screw bone 331 is formed on the rotating shaft 322 is rotated by receiving the power to the loading motor 320 is engaged with the guide feed 311 attached to the pickup 310.

On the other hand, the one end of the rotary shaft 322 is formed with a diameter of the same size as the bone diameter of the screw bone 331 without the screw bone 331, the thread of the guide feed 311 is the rotary shaft ( It is separated from the screw bone 331 formed in the 322, so that the power of the loading motor 320 does not reach the pick-up unit 310 can be interrupted the linear slide movement of the pick-up unit 310.

In addition, the worm gear 340 is fixed to the end of the arms 332, it is configured to transfer power from the worm gear 340 to another gear train.

The pick-up unit 310, which receives the feeding force from the loading motor 320 as described above, is installed to penetrate two parallel feed shafts 312 having both ends fixed to the pick-up base 300, and thus the feed shaft 312. It is configured to make linear reciprocating motion while sliding along the guide surface of

In addition, a hook 313 having a substantially ″ c ″ shape is formed on the bottom surface of the pickup part 310 to linearly move together with the pickup part 310.

Next, the wheel gear 330 composed of concentric shafts with the worm wheels is pivotally supported on the pickup base 300 to be engaged with the worm gears 340, and at the same time, the one end is composed of the spur gears, and the pickup is also carried out. The gear 300 is engaged with the idle gear 350 pivotally supported on the base 300.

Meanwhile, the moving gear 360, which is installed to be engaged with the idle gear 350, is installed on the upper part of the main slider 400 as shown in FIG. 5C. That is, the upper end of the moving gear 360 is formed with a belt engaging portion for the belt (V) is engaged, the lower end is formed with a spur gear concentrically with the belt engaging portion is pivotable on a separate rotating plate (361) Is supported.

Next, the rotating plate 361 which supports the moving gear 360 is axially supported such that one end of the bearing portion 362 is rotatable to the pickup base 300, so that the moving gear 360 has its rotation center. It can move circularly about the bearing part 362 of this rotating plate 361, and can perform the power interruption with the said idle gear 350, and the loading gear 210 and the belt which are axially supported by the tray 200 are carried out. It is connected to (V) to transmit power.

In addition, the main slider 400, which is capable of linear reciprocation by constraining the guide path 401 at three ″ T ″ guide rods 410 formed on the lower surface of the pickup base 300, has a rotary plate 361 on its own. The guide path 363 of the rotating plate 361 concentrically formed with the moving gear 360 to constrain the moving protrusion 360 and the idle gear. This engagement of 350 is interrupted.

In addition, the main slider 400 is formed with a stopper guide path 403 for restraining the stopper guide protrusion 221 protruding from one end of the stopper 220 rotatably installed in the tray 200, and a pickup base ( The pick-up part 310 enters the pick-up part 310 by forming a connector guide path 404 for guiding the first connector protrusion 371 protrudingly formed at one end of the connector 370 rotatably supported by 300. When the hook portion 313 fixedly attached to 310 pushes up the second connector protrusion 372 protruding from the other end of the connector 370, the connector 370 rotates about the shaft portion 373. The rotational force causes a linear movement of the main slider 400 while pushing the side surface of the connector guide path 404 of the main slider 400 by the first connector protrusion 371.

The rotary plate guide protrusion 363 and the stop hook guide protrusion 221 which are constrained by the linear plate guide path 401 and the stop hook guide path 403 which are formed in the linear motion of the main slider 400 configured as described above. By constraining, consequently, the moving gear 360 constrains the rotational movement of the rotation plate 361 and the stopper 220 which are axially supported.

Meanwhile, an emergency ejecting rod 420 is formed at one end of the main slider 400, and the emergency lever 110 is axially supported by the main base 100 in case of emergency in which power is not supplied to the loading motor 320. Pushed by the contact surface 111 of the main slider 400 is configured to make a linear movement.

Therefore, the operation of the recording medium reproducing apparatus configured as described above will be described with reference to FIGS. 8A to 8F.

First, the procedure from regeneration to completion of discharging of the tray will be described. As shown in FIG. 8A, when the main base 100 is discharged during regeneration and an ″ eject ″ command is issued, the main base 100 is mounted. When the spindle motor M2 which is being rotated stops and the pick-up unit 310 moves to ″ P1 ″ beyond the outermost circumference of the main base 100 by the driving of the loading motor 320, the pick-up unit 310 is fixed to the bottom of the pick-up unit 310. The hook part 313 which is made starts to push the 2nd connector protrusion 372 of the connector 370 for the first time.

At this time, the power of the gear train is rotated by the loading motor 320, the worm gear 340 is rotated and meshed with the wheel gear 330, idle gear 350 is rotated, the moving gear 360 of the main slider 400 It is constrained by the rotating plate guide path 402 so that it is not engaged with the idle gear 350 so that it does not rotate and remains stopped with the loading gear 210.

Subsequently, as shown in FIG. 8B, when the pickup 310 moves out of ″ P1 ″ to ″ P2 ″, the hook 313 pushes the second connector protrusion 372 to rotate the connector 370 at an angle. As a result, the first connector protrusion 371 pushes the side surface of the connector guide path 404 to move linearly while pushing the main slider 400 by the distance &quot; S1 &quot;.

That is, the main slider 400 moves linearly as much as the distance "S1" as the pickup unit 310 moves to "P2".

The stop hook guide protrusion 221 is driven by the stop hook guide path 403 by the linear movement of the distance ″ S1 ″ of the main slider 400 generated as described above, and the stop hook 220 is rotated by a predetermined angle to move the main. The state caught in the hanging protrusion plate 103 of the base 100 is released.

Due to this, the tray 200 is discharged, and even then, the state of the gear train rotates only to the wheel gear 330 and the idle gear 350.

Next, when the pickup 310 moves straight to the ″ P3 ″ position as shown in FIG. 8C, the main slider 400 is linearly moved only to the initial position, that is, the S2 ″ distance, and thus the rotation plate 361 is fixed. By rotating the angle, the moving gear 360 meshes with the idle gear 350, which is already rotating, and starts to rotate. At the same time, the loading gear 210 connected to the belt V starts to rotate.

At this point, the pick-up unit 310 is picked up by the reaction force generated by the front end surface of the hook portion 313 to the stop protrusion 105 integrally formed on the main base 100, and thus no further forward movement. ) Is pushed out of the main base 100.

Subsequently, the pickup 310 moves by ″ P4 ″ shown in FIG. 8D, and the tray 200 and the pickup base 300 are integrally formed due to the reaction force generated by the collision between the hook portion 313 and the stopper 105. Is moved by ″ T1 ″, and the rotating loading gear 210 is engaged with the rack gear 104 integrally formed on the side wall of the main base 100.

From this time, the loading gear 210 is engaged with the fixed rack gear 104 and the tray and the pick-up base are started to be discharged as a whole. At this time, the main slider 400 is moved by ″ S3 ″ to restrain the moving gear 360 and the stopper 220 to be in position.

Subsequently, when the pick-up unit 310 is moved by ″ P5 ″, the thread of the guide feed 311, which receives the linear motion from the loading motor 320, from the screw bone 331 formed on the rotation shaft 330 of the loading motor 320. Departure is slipped into the weapon gear 332. At this time, even if the loading motor 320 continues to rotate, the pickup unit 310 stops without further linear movement. At this time, the main slider 400 moves to &quot; S4 &quot; while restraining the moving gear 360 and the stopper 220 in position.

On the other hand, the loading gear 210 continues to rotate while descending the rack gear 104, the pickup base integrally formed in the tray is moved by "T2" and is continuously discharged.

Next, when the loading gear 210 rotates while discharging the tray and the pickup base to ″ T3 ″ while rotating the rack gear 104 as shown in FIG. 8F, a complete detection switch fixedly attached to the tray 200 may be used. S) hits the detection plate 106 integrally formed on the main base 100 to detect the completion recognition signal, and based on this, the power of the loading motor 320 is ″ off ″ and all the operations are stopped at the same time, thereby discharging the operation. Is done.

Therefore, the pickup base integrally formed with the tray can be taken out of the main base in the above state.

At this time, the pulling operation proceeds in the reverse order of the above description.

As described above, the present invention uses an operation unit for switching to a loading structure of a feeding power source and a loading operation unit as one power generating means, thereby realizing the inlet or discharge and loading operation of a tray for accommodating a recording medium. There is a number.

In addition, by integrally forming the pickup base on the tray, it is possible to simplify the configuration of the power connection and the interruption structure between the two operating portions, and at the same time to reduce the cost.

Claims (10)

A recording and reproducing apparatus for recording or reproducing information, A tray which receives the recording medium and moves to a retracted or discharged position; Power generating means; A pickup unit movably installed at a pickup base to receive power of the power generating means; And switching means which are moved by the pick-up part and rotatably installed to selectively transmit the power of the power generating means to a tray. According to claim 1, wherein the power generating means is a load motor, a support plate for fixing the loading motor to the main base, a rotating shaft that is rotated by receiving power from the loading motor, and the screw bone of the rotating shaft is engaged and straight And a guide feed for reciprocating operation is formed in the pickup section. The linear slide of the pickup part according to claim 2, wherein the thread of the guide feed is disengaged from the screw bone formed on the rotary shaft at one end of the rotating shaft which receives power from the loading motor so that the power of the loading motor does not reach the pickup part. And a worm gear is formed to interrupt the movement, and a worm gear is fixed to the end of the weapon gear to transfer power from the worm gear to another gear train. A recording and reproducing apparatus for recording or reproducing information, A tray having lift guide means formed on both sides to prevent lifting during a straight reciprocating operation under the guidance of the guide means, and a pickup base integrally formed thereon; A power transmission means formed to be engaged with the power generating means installed at one end of the tray to move; And a restraining means for temporarily restraining the operation of the tray. 5. The recording medium reproducing apparatus according to claim 4, wherein detection control means for detecting and controlling forward and insertion operations of the tray are formed in the main base and the tray. According to claim 4, The power transmission means is installed to rotate in conjunction with the power generating means; And a rack gear formed at one side of the main base so as to be engaged with the loading gear so as to reciprocate linearly. The main slider according to claim 4, wherein the restraining means comprises a stopper provided rotatably installed from the tray, a guide slider protruding from one end of the stopper, and a main slider having a stopper guide for restraining the guideway. Recording medium reproducing apparatus. A recording and reproducing apparatus for recording or reproducing information, A pickup formed in the pickup base and a tray integrally formed with the pickup base; One power generating means installed in the pickup unit; A recording medium reproducing apparatus characterized by being loaded or driven by a power corresponding to an overstroke of the power generating means. 2. The switching device according to claim 1, wherein the switching means includes a power transmission means composed of a plurality of gears for transmitting power of the power generating means to a tray, wherein one of the power transmission means gears is moved by an diffuser pickup unit. And a moving gear selectively coupled to the gear. 2. The apparatus of claim 1, wherein the switching means comprises: a connector movably mounted to the base and having one end contacting the pickup; A slider connected to the other end of the connector, the slider being driven and moved by the rotation operation of the connector, the slider having a plurality of guide paths; And a rotation plate which is rotatably installed on the base and whose one end is connected to one of the guide paths of the slider.