KR100296251B1 - Record carrier playback device - Google Patents

Abstract

The present invention makes it possible to realize a retracting or discharging and loading operation of a tray for accommodating a recording medium by using the same power generating means as the driving unit and the operating unit for switching to the loading structure of the feeding power source.

One power generating means 300 is installed in the pickup unit 200 installed on the main base 100, and configured to load or drive with power corresponding to an overstroke of the power generating means 300. In order to realize this, the power transmission lever 210 is rotatable so as to support the pivot shaft P at one end of the pickup unit 200 so as to rotate by a predetermined distance by the overstroke of the pickup unit 200. A slider 220 installed elastically by 211 and linearly moving by the power from the power transmission lever 210; A bracket gear 230 which is operated by the slider 220; The drive unit of the power generating means 300 and the rod gear 240 are meshed with each other by the bracket gear 230, and are rotated by the continuous operation of the slider 220 to straight line the guide up / down means 400. A slider lever 250 for inducing exercise; A clutch (C) for temporarily transmitting and interrupting power of the load gear 240; The tray 500 is drawn out by the power of the load gear 240.

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 a separate sensing switch (not shown) is “on”, so that the rotation of the loading motor M1 is stopped.

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.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned shortcomings, and is to make feeding, loading and pick-up unit up / down using one power generating means.

In order to achieve the above object, the present invention provides a recording and reproducing apparatus for recording or reproducing information, comprising: one power generating means provided in the pickup unit; The technical configuration features are imparted to loading or driving with power corresponding to the overstroke of the power generating means.

The power generating means includes a loading motor, a support plate for fixing the loading motor to the main base, a rotating shaft rotated by receiving power from the loading motor, and a screw bone of the rotating shaft to linearly reciprocate the pickup unit. It comprises a guide feed for making, characterized in that to form an inorganic gear on one side of the rotary shaft to eliminate the load of the overstroke of the pickup unit.

Also, a recording and reproducing apparatus for recording or reproducing information, the recording and reproducing apparatus comprising: a power transmission lever rotating at a constant distance by an overstroke of a pickup unit; A slider linearly moved by the power transfer lever; A bracket gear operated by the slider; A drive unit and a rod gear of the power generating means engaged with each other by the bracket gear; A slider lever for rotating by continuous operation of the slider to cause linear movement of the guide up / down means; A clutch for temporarily transmitting and interrupting power of the road gear; Characterized in that the tray is taken out by the power of the load gear.

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;

3a is a plan view of the main base of the present invention;

Figure 3b is a view showing a part of the invention the power transmission means,

4A is a plan view of the recording medium reproducing apparatus of the present invention, and FIG. 4B is a front view thereof;

5A to 9 are views showing a loading / unloading operation of the recording medium reproducing apparatus of the present invention;

<Description of Symbols for Major Parts of Drawings>

100: main base 200: pickup unit 210: power transmission lever

211: elastic member 220: slider 230: bracket gear

240: road gear 250: slider lever 260: guide feed

300: power generating means 310: loading motor 320: support plate

330: axis of rotation 331: screw bone 332: weapon

333: worm gear 400: guide up / down means

401: inclined hole 402: horizontal hole 410: moving plate

411: gear unit 420: guide plate 430: lifting means

431: guide plate 500: tray 510: horizontal guide

511: inclined guide 512: vertical guide C: clutch

G: ejection means V: belt

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

Figure 3a is a view showing the moment when the pickup unit of the recording medium playback apparatus of the present invention forcibly hit the power transmission lever out of the outermost circumference of the disk, Figure 3b is a view showing the power transmission means of the present invention.

Next, Fig. 4a shows that the present invention pick-up unit continuously pushes the power transmission lever, and the power transmission lever rotates to move the slider linearly by "L" distance to move the bracket gear, thereby engaging the rod gear portion and the drive portion of the power transmission means. 4B is a front view of FIG. 4A showing a power transmission state of the power generating means.

Next, Figure 5a is a view showing a state in which the pick-up unit is engaged with the rotating rod gear by causing the linear movement of the guide up / down means by rotating the slider lever by the continuous linear movement of the slider as the continuous movement of the present invention, Figure 5b is a view showing the initial position of the lifting means of the pickup unit of the present invention according to Figure 5a.

Figure 6a is a view showing a state in which the guide up / down means driven from the road gear of the present invention continues a straight motion, Figure 6b is a view showing a state in which the down operation of the pickup base is completed according to the state of the present invention Figure 6a. FIG. 6C is a view showing a state in which the chamfer rod of the guide guide up / down means collides with the tray inclined guide path and starts to pull out the tray.

7a is a view showing a state in which the ejection rod is engaged with the rod gear in which the rack gear of the tray is pulled out by pushing the inclined guide path of the tray by the linear movement of the guide up / down means of the present invention to perform an "open" operation. FIG. 7B is a view showing a position change of another lifting means in FIG. 7A.

8 is a view showing a state in which the guide up / down means are constrained in the guide path of the tray during the operation of the present invention in which the power is released from the rod gear by linear movement.

Next, FIG. 9 is a view illustrating a state in which a tray powered by a load gear of the present invention is pulled out until the open switch is recognized and the open operation is completed.

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

In the recording and reproducing apparatus of the present invention, as shown in FIG. 3A, one power generating means 300 is provided in the pickup unit 200 installed on the main base 100, and the power generating means 300 is provided. It is configured to load or drive with the power corresponding to the overstroke, in order to realize this, by rotating the rotation shaft (P) at one end of the pickup unit 200 to rotate a certain distance by the overstroke of the pickup unit 200 A slider 220 rotatably installed by the elastic member 211 so as to be rotatable to a support point, and linearly moved by the power from the power transfer lever 210; A bracket gear 230 which is operated by the slider 220; The drive unit of the power generating means 300 and the rod gear 240 are meshed with each other by the bracket gear 230, and are rotated by the continuous operation of the slider 220 to straight line the guide up / down means 400. A slider lever 250 for inducing exercise; A clutch (C) for temporarily transmitting and interrupting power of the load gear 240; The tray 500 is drawn out by the power of the load gear 240.

At this time, the power generating means 300 is a loading motor 310, as shown in Figure 3b or 4b, a support plate 320 for fixing the loading motor 310 to the main base 100 and the Rotation shaft 330 is rotated by receiving power from the loading motor 310, and a guide feed 260 is engaged with the screw bone 331 of the rotation shaft 330 to linearly reciprocate the pickup unit 200. In addition, the inorganic gear 332 is formed on one side of the rotary shaft 330 to remove the overstroke load of the pickup unit 200, and the worm gear 333 is fixed to the end of the inorganic gear 332. The power of the worm gear 333 is configured to transmit power to the first pulley 334 and the second pulley 335 fastened by the belt V.

That is, the rotating shaft 320 is screw thread 331 is rotated by receiving power to the loading motor 310 is engaged with the guide feed 260 attached to the pickup unit 200, one end of the rotating shaft 330 In the non-screw bone arm portion 332 is formed with a diameter of the same size as the bone diameter of the screw bone 331, the thread of the guide feed 260 is separated from the screw bone 331 formed on the rotating shaft 330 As a result, the power of the loading motor 310 may not reach the pickup unit 200 so that the linear slide motion of the pickup unit 200 may be interrupted.

Next, the guide up / down means 400 includes a moving plate 410 engaged with the rod gear 240 and linearly moving left and right, as shown in FIG. 4A or 5B; A guide plate 420 meshed with the gear part 411 formed on the other side of the movable plate 410 and rotated; Lifting means 430 for raising or lowering the pickup unit 200 according to the movement of the guide plate 420; It comprises a take-out means (G) for taking out the tray 500 by the linear movement of the guide plate 420.

Next, the lifting means 430 is a guide plate 431 symmetrical with each other as shown in Figure 5b and the inclined hole 401 is formed between the upper and lower horizontal holes 402; It is composed of a guide rod 440 is inserted into the inclined hole 401 formed in the guide plate 431 to lift the pickup unit 200.

Next, the takeout means (G) is a takeout rod 412 formed at one end of the moving plate 410 as shown in Figure 3a; A horizontal guide path 510 into which the extraction rod 412 is inserted is formed at one side of the tray 500, and an inclined guide path 511 for moving the tray 500 a predetermined distance to the horizontal guide path 510. ) And a vertical guideway 512 is formed.

Next, the procedure from regeneration to completion of discharging of the tray 500 will be described with reference to the drawings.

When the tray 500 is ejected during the regeneration and the eject switch is issued by pressing an eject switch (not shown), as shown in FIG. 4A, the pickup unit 200 is forced out of the disk outer periphery for the first time to the power transmission lever 210. Bump into

Next, when the pickup unit 200 continuously pushes the power transmission lever 210 and rotates it in the direction of the arrow of FIG. 4A, the slider 220 moves linearly by the "L" distance to move the bracket gear 230. As the load gear 240 and the driving unit of the power generating means 300 is engaged to start the rotation.

Next, as shown in FIG. 5A, the linear movement of the guide up / down means 400 is caused by the continuous rotation of the slider 220 due to the continuous movement of the pickup unit 200, thereby rotating the slider lever 250. And a rack gear formed on the right side of the moving plate 410 is engaged with the rotating rod gear 240.

Next, the guide up / down means 400 driven from the load gear 240 continues to linearly move as shown in FIG. 6A so that the pickup unit 500 moves down as shown in FIG. 6B or 6C. After this is completed, the guide rod 440 of the elevating means 400 collides with the wall by the guide of the tray 500 and starts to pull out the tray 500.

Next, as shown in FIG. 7A or FIG. 7B, the extraction rod 412 moves along the horizontal guide path 510 of the tray 500 by the linear movement of the moving plate 410. When pushing the side of the tray, the tray is drawn out, and at the same time, the rack gear unit 501 of the tray 500 is engaged with the rotating load gear 240 to perform an "open" operation.

Next, as shown in FIG. 8, the guide up / down 400 is constrained to the vertical guide path 512 of the tray 500 which is performing the “open” operation as described above, and moves straight from the load gear 240. The power is released. At this time, the guide up / down 400 is a straight motion is completed.

Next, the tray 500, which receives power from the load gear 240, is pulled out until the open switch S is recognized, and the "open" operation is completed as shown in FIG. 9.

As described above, the present invention can perform feeding, loading and pick-up unit up / down by using one power generating means, and the product can be made compact by minimizing necessary parts.

Claims (2)

A recording and reproducing apparatus for recording or reproducing information, A power transmission lever that rotates for a predetermined distance by the overstroke of the pickup unit; A slider linearly moved by the power transfer lever; Bracket gear operated by the slider A drive unit and a rod gear of the power generating means engaged with each other by the bracket gear; A slider lever for causing linear movement of the guide up / down means rotated by the continuous operation of the slider; A clutch for temporarily transmitting and interrupting power of the road gear; And a tray which is taken out by the power of the load gear. The recording medium reproducing apparatus according to claim 1, wherein the loading gear unit is provided on a main base, and a rack unit interlocked with the loading gear unit is formed in a tray.