KR950015201B1 - Loading/unloading apparatus of disk cartridge for minidisk player - Google Patents

Abstract

The apparatus comprises a guide bracket mounted in a main base to move in the vertical and horizontal directions, a buffer plate installed in an upper side of the guide bracket to decrease the insertion force of a disc cartridge, a protrusion for opening a shutter mounted in the disc cartridge when the disc cartridge is inserted into the guide bracket, a movable plate mounted in the bottom of the buffer plate to turn on a power switch by the insertion force of the disc cartridge, a plate spring whose one end is fixed to the upper side of the buffer plate, for locking the movable plate when the movable plate turns on the power switch, a loading switch fixed to the upper side of the buffer plate to operate a loading motor so as to move the guide bracket when the buffer plate slides by the insertion force of the disc cartridge, a stopper fixed to the main base to release the lock of the movable plate to be contacted with the plate spring when the guide bracket is vertically and horizontally moved, and a rotating board mounted in an upper surface of the main base to again close the shutter when the disc cartridge is ejected from the disc according to the release of the locking of the movable plate.

Description

Inserting and ejecting disc cartridge of mini disc player

1 is a plan view showing a conventional device,

a) is a state before the disc cartridge is inserted into the guide bracket.

b) is a state in which the shutter is opened when the disc cartridge is inserted into the guide bracket.

c) is a state where the disc cartridge is inserted into the guide bracket.

2 is a side view showing a conventional device.

3 is a plan view showing a device of the present invention,

a) is a state before the disc cartridge is inserted into the guide bracket.

b) is a state in which the buffer play slides backward when the disc cartridge is inserted into the guide bracket.

c) is a state in which the shutter which was opened when the disc cartridge was ejected from the guide bracket is closed again.

4 is a bottom view showing the device of the present invention,

a) is a state before the disc cartridge is inserted into the guide bracket.

b) is a state in which the shutter is opened when the disc cartridge is inserted into the guide bracket.

c) is a state in which the movable plate slides backward when the disc cartridge is inserted into the guide bracket.

d) is a state in which the moving plate is slid rearward when the disc cartridge is inserted into the guide bracket.

5 is a side view showing the apparatus of the present invention,

a) is a state before the disc cartridge is inserted into the guide bracket.

b) is a state in which the movable plate is completed sliding to the rear when the disc cartridge is inserted into the guide bracket is locked.

c) is a state in which the locking of the movable plate is released when the disc cartridge is ejected from the guide bracket.

* Explanation of symbols for main parts of the drawings

1: Main base 2: Guide bracket

3: buffer plate 5: protrusion piece

6: moving plate 8: power switch

9: leaf spring 10: loading switch

11: stopper 12: rotating flights

14: first pin 15: the first hole

16: the first bending piece 17: the second pin

18: guide hole 19: the second chapter

20: second bending piece 21: elastic piece

22: jam piece 23: jamming projection

24: locking groove 25: support piece

26: notch groove 27: protrusion

30: disc cartridge 32: shutter

The present invention relates to a disc cartridge insertion and ejection device of a mini disc player, and more particularly, to be used in a portable as well as a stationary mini disc player and to stably operate without inserting a disc cartridge. .

In general, a mini-disc player is a sound device capable of reproducing the sound recorded on the mini-disc using a cartridgeized mini-disc as a recording medium. In recent years, a mini-disc player has been developed and marketed only for portable use, but the potential for its acceptance Since Iran cannot be said, each company is investing a lot of money and doing steady research.

Let's take a look at the structure of the disc cartridge in which the mini disc is built.

The disc cartridge 30 is provided with a cartridge hole 31 to expose the disc through the cartridge hole, and the shutter 32 with the shutter hole 33 is slidably installed so that the shutter is opened or closed. The hole 31 is opened and closed, and the cartridge cartridge 34 is formed in the disc cartridge 30. The shutter 32 inserts the cartridge cartridge 30 into the machine for reproducing the disc. ) So that the laser beam scanned from the pickup at the time of reproduction hits the surface of the disc through the hole to read out the sound recorded on the disc, and the cartridge cartridge (31) ) To protect the disc.

As described above, in order to play a disc, the disc cartridge 30 must be inserted into the device, and after completion of the disc, the disc cartridge must be ejected to the outside of the device. It is provided to insert or eject the disc cartridge by the device.

Since the mini-disc player developed so far is only portable, the following description will be given with a conventional structure for loading a disc cartridge provided in the portable mini-disc player.

A guide bracket 42 having a through hole 43 formed on one side of the main base 41 is hinged to be rotatable so that the guide bracket guides the disc cartridge 30, and the guide bracket 42 The plate spring 45 is fixed so that the integrated projection 44 is fitted into the through hole 43 on one side of the outer side thereof so that the leaf spring opens and closes the shutter 32 of the disc cartridge 30. An eject plate spring 47 having a locking piece 46 is fixed to the rear surface of the upper surface 41 so that the disc cartridge has elasticity by the eject plate spring 47 when the disc cartridge 30 is inserted. The disc cartridge 30 is ejected by a certain length from the guide bracket 32 by the eject plate spring 47, and the knob 48 and the inclined surface 49 are formed at the rear of the main base 41. Piece (50) is spring (51) As the movable piece 50 locks the eject plate spring 47 so that the disc cartridge 30 has elasticity, the disc cartridge 30 is released as the locking piece is released. .

Accordingly, when the disc cartridge 30 is pushed into the guide bracket 42 hinged to the main base 41 in the state shown in FIGS. 1A and 2, the disc cartridge is guided to the guide bracket 42. It is inserted while being inserted, the shutter 46 of the leaf spring 45 fixed to one outside of the guide bracket 42 is installed in the disc cartridge 30 through the through hole 43 formed in the guide bracket 42 Since it is inserted into the shutter hole 33 of the 32, the shutter 32 is opened to open the cartridge hole 31 formed in the disc cartridge 30. As shown in FIG.

Subsequently, when the disc cartridge 30 is pushed in, the rear end surface of the disc cartridge comes into contact with the eject plate spring 47 at some point and pushes the eject plate spring so that the eject plate spring 47 is pushed into the disc cartridge 30. While giving elasticity, it is pushed counterclockwise in the drawing. At this time, the engaging piece 46 formed in the eject plate spring 37 is caught by the end of the spring 51, so that the disc cartridge 30 continues to receive the guide bracket 42. ) Is inserted as shown in FIG. 1C.

When the disc cartridge 30 is inserted into the guide bracket 42 in this way, the user presses the guide bracket 42 in the direction of the arrow in FIG. 2 to lock it to the main base 41, and then selects the play button. The sound recorded on the disc in the disc cartridge 30 may be reproduced by pickup.

In addition, when the reproduction of the sound recorded on the disc is finished, the disc cartridge 30 should be discharged. In this case, the knob of the guide bracket 42 is released from the main base 41, and then the knob formed on the movable piece 50 is removed. Slide 48 to the left in the drawing.

That is, when the knob 48 is pushed to the left side in the drawing, the moving piece 50 also moves together while receiving the elasticity of the spring 51, so that the locking force of the locking piece 46 formed on the eject plate spring 47 is released. Accordingly, since the eject plate spring 47 is restored to its original state, the disc cartridge 30 is guided to the guide bracket 42 and protrudes by a predetermined length (length proportional to the elastic force of the eject spring), wherein the user has the disc cartridge 30 ) By hand and pull out from the guide bracket 42 to complete the discharge.

When the disc cartridge 30 is ejected from the guide bracket 42, the projection 32 of the leaf spring 45 fixed to the guide bracket 42 fits into the shutter hole 33 so that the shutter 32 is opened. Closes the cartridge hole 31 formed in the disc cartridge 30 while being closed again.

However, such a device conventionally has a number of problems described below.

First, the disc cartridge is pushed into the guide bracket, and then the guide bracket must be pressed to complete the insertion.

Second, since the leaf spring that opens or closes the shutter of the disc cartridge is deformed when used for a long time, the opening and closing operations of the shutter are not smoothly performed.

Third, if the disc cartridge is pushed into the guide bracket with too much force, the various components constituting the deck mechanism are damaged.

The present invention has been made in order to solve the above problems, so that the insertion is completed by simply pushing the disc cartridge horizontally to the guide bracket so that it can be applied to a portable mini-disc player as well as portable, so as to be compatible When the disc cartridge is inserted and ejected, the parts that open or close the shutters installed on the disc cartridge are not deformed according to the long time use of the device so that the opening and closing operations of the shutter are performed correctly. The purpose of the present invention is to prevent the damage of various components constituting the deck mechanism by reducing the insertion force of the disc cartridge even if it is pushed with excessive force.

According to the present invention for achieving the above object, the guide bracket is installed on the upper portion of the main base so as to move horizontally and vertically, and is elastically slidably installed on one side of the upper surface of the guide bracket to insert the disc cartridge into the guide bracket. A buffer plate for attenuating the insertion force of the disc cartridge, a protrusion formed on the buffer plate to open the shutter installed in the disc cartridge when the disc cartridge is inserted into the guide bracket, and a lower surface of the buffer plate. A movable plate that is elastically installed to be slidable to turn on the power switch under the insertion force of the disc cartridge, and a leaf spring that locks the movable plate when the power switch is turned on because one end is fixed to the upper surface of the buffer plate. And, fixed to one side of the upper surface of the buffer plate And a loading switch for driving the loading motor so that the guide bracket moves horizontally and vertically when the shock absorbing plate is slid under the insertion force of the disk cartridge. The present invention consists of a stopper for releasing the locking of the movable plate, and a rotating piece that is elastically installed in the main base, and the rotating plate is closed when the disc cartridge is discharged as the disc cartridge is discharged. A disc cartridge insertion and ejection device for a mini disc player is provided.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 5 of the accompanying drawings.

FIG. 3 is a plan view showing the device of the present invention, FIG. 4 is a bottom view showing the device of the present invention, and FIG. 5 is a side view showing the device of the present invention. The present invention is installed in the main base 1 so as to be movable horizontally and vertically. When the disc cartridge 30 is inserted into the guide bracket 2 by elastically installing the shock absorbing plate 3 to the one side of the upper surface of the guide bracket 2 so as to be slidable, the shock absorbing plate 3 Is inserted into the disc cartridge 30 so as to slide rearward, and the buffer plate (3) is formed on the guide bracket (2) to protrude into the guide bracket (2) disc cartridge ( The projection piece 5 opens the shutter 32 installed in the disc cartridge 30 when the 30 is pushed in, and the movable plate 6 is slidably formed on the lower surface of the buffer plate 3. spring( 7) when the disc cartridge 30 is elastically installed to slide the disc cartridge 30 into the guide bracket 2, the power switch fixed to the buffer plate 3 while the movable plate 6 slides under the insertion force of the disc cartridge 30. (8) to be turned on, one end of the leaf spring (9) is fixed to the upper surface of the buffer plate (3) when the movable plate (6) turned on the power switch (8) To lock the leaf spring (9).

In addition, the loading switch 10 is fixed to one side of the upper surface of the buffer plate 3 so that the loading switch 10 is turned on when the buffer plate 3 slides under the insertion force of the disc cartridge 30. (Not shown) when the guide bracket 2 is moved horizontally and vertically as it is driven, and the stopper 11 is fixed to the main base 1 when the guide bracket 2 is vertically and horizontally moved. As the leaf spring 9 comes into contact with the stopper 11, the locking of the movable plate 6 is released, and the rotation piece 12 is disposed at the front side of the upper surface of the main base 1 to the torsion spring 13. As the locking of the movable plate 6 is released by elastic installation, the rotating piece 12 closes the shutter 32 installed and opened in the disc cartridge when the disc cartridge 30 is discharged.

In the above, the plurality of first pins 14 are press-fitted to the upper surface of the guide bracket 2, and the buffer plates 3 have a plurality of first holes 15 to be fitted to the first pins 14, respectively. When the disc cartridge 30 is inserted into the guide bracket 2 by forming the first bent piece 16 to be bent downward in the rear of the buffer plate 3, the disc cartridge is formed in the first bent piece ( 16, the buffer plate (3) is to be slid rearward within the range of the first long hole (15).

In addition, a pair of second pins 17 are press-fitted to the buffer plate 3 to form guide holes 18, and the movable plate 6 is fitted with a pair of second pins 17 to be fitted into the respective second pins 17. The second bent piece 20 is formed to be inserted into the guide hole 18 while the two holes 19 are formed, and the elastic piece 21 is formed at the rear of the movable plate 6 to have an elastic force inward. The locking piece 22 is inserted into the cartridge groove 34 formed in the disk cartridge when the disk cartridge 30 is inserted into the guide bracket 2 by fixing the locking piece 22 at the end of the elastic piece. The second bent piece 20 causes the power switch 8 to be turned on when the movable plate 6 slides within the range of the second long hole 19. When the locking projection 23 is bent downward at the other end of the leaf spring 9 and the locking groove 24 is formed at the movable plate 6, the movable plate 6 is slid to turn on the power switch 8. As the locking protrusion 23 is fitted into the locking groove 24, the movable plate 6 is locked by the leaf spring 9.

In addition, before the buffer plate 3 is slid by fixing the support piece 25 on the upper portion of the main base 1, the loading switch 10 is turned off as it comes into contact with the support piece 25 to stop driving of the loading motor. When the buffer plate 3 is slid, the loading switch 10 is turned on as the short circuit in the support piece 25 so that the loading motor is driven.

In addition, a notch groove 26 is formed at one front of the guide bracket 2, and a protrusion 27 is formed at the end of the rotating piece 12 inwardly so that the protrusion is inserted into the notch groove 26 so that the disc cartridge 30 is formed. When the disc cartridge 30 is discharged in contact with one side of the protrusion 27, the protrusion 27 is inserted into the shutter hole 33 formed in the shutter 32 to close the shutter.

Reference numeral 28 is a guide.

Referring to the process of inserting and ejecting the disc cartridge by the apparatus of the present invention configured as described above are as follows. When the disc cartridge 30 is pushed into the guide bracket 2 installed on the main base 1 so as to move horizontally and vertically in the same state as in FIGS. 3a and 4a, the disc cartridge is inward of one side of the guide bracket 2. It is inserted into the guide piece 28 formed in the guide piece 5 formed on the inner side of the buffer plate 3, while the shutter 32 is provided on the disc cartridge 30 is the fourth piece to the projection piece (5b) As it gets along with the tile, it starts to open.

Subsequently, when the disc cartridge 30 is pushed in, the locking piece 22 fixed to the end of the elastic piece 21 of the movable plate 6 is inserted into the cartridge groove 34 formed in the disc cartridge 30. As the movable plate 6 receives the elasticity of the second spring 7 and slides backward, the power switch 8 fixed to the shock absorbing plate 3 is turned on as shown in FIG. 3b, and accordingly, the deck mechanism of the device When the power is supplied, the disc cartridge 30 takes the first bent piece 16 bent downward on the rear of the buffer plate 3 so that the insertion is stopped and the shutter 32 installed in the disc cartridge 30 is stopped. ) Is fully opened so that the cartridge hole 31 formed in the disc cartridge 30 is opened.

In the above, the power plate 8 is turned on while the moving plate 6 slides, and the pair of second pins 17 are press-fitted to the buffer plate 3 and the guide holes 18 are formed and moved. A pair of first long holes 15 are formed in the plate 6 to allow the second pin 17 to be fitted, and a second bending piece 20 is formed to fit in the guide hole 18. When 6 is slid rearward within the range of the first long hole 15, the first bent piece 16 touches the power switch 8 to be turned on.

On the other hand, when the movable plate 6 is slid rearward within the range of the first long hole 15, the other end locking projection 23 of the leaf spring 9 whose one end is fixed to the upper surface of the buffer plate 3 is moved. Since it is fitted into the engaging groove 24 formed in the plate 6, the movable plate 6 is locked by the leaf spring 9 in the state in which the sliding plate 6 is completed sliding backward.

As described above, when the disc cartridge 30 inserted into the guide bracket 2 is once stopped and the user pushes the disc cartridge once again with a momentary force, the disc cartridge 30 is pushed by the pushing force of the disc cartridge 30. The shock absorbing plate 3 is slidably moved backwards while receiving the elasticity of the first spring 4. At this time, the loading switch 10 fixed to one upper surface of the shock absorbing plate 3 is fixed to the main base 1. The loading switch 10 is turned on to drive the loading motor in the forward direction, so that the guide bracket 2 is formed by each component of the deck mechanism connected to the loading motor. Since the horizontal cartridge is moved vertically, the disk cartridge 30 is completely inserted.

In the above, the cushioning plate 3 is slid backward by the pushing force of the disc cartridge 30. The plurality of first pins 14 are press-fitted and fixed to the upper surface of the guide bracket 2, and the buffering plate 3 is Since the plurality of first long holes 15 are formed to be fitted to the first pins 14, the buffer plate 3 is slid within the range of the first long holes 15.

On the other hand, when the user pushes the disc cartridge 30 into the guide bracket 2 with excessive force from the beginning, the disc cartridge 30 is not inserted once and continues to be inserted. In this case, the buffer plate 3 is the first long hole ( Since the insertion force of the disc cartridge 30 is reduced while sliding within the range of 15), it is possible to prevent damage to each component of the deck mechanism due to excessive insertion of the disc cartridge.

When the disc playback is completed in the state in which the disc cartridge is inserted by the operation as described above, the disc cartridge should be discharged, which will be described later.

When the user selects the eject button, the loading motor is driven in the reverse direction so that the guide bracket 2 is vertically moved and then horizontally moved. At this time, the movable plate 3 is slid forward again by the restoring force of the first spring 4. .

Subsequently, when the guide bracket 2 is moved horizontally, the stopper 23 formed at the other end of the leaf spring 9 to lock the movable plate 6 is fixed to the main base 1 as shown in FIG. 5C. (11), so that the locking projection 23 exits in the locking groove 24 formed in the movable plate 6, thereby unlocking the movable plate 6 to release the movable plate 6 to the second. The elastic piece 21 formed in the movable plate 6 is also moved forward because the spring 7 is slid forward again by the restoring force of the spring 7. At this time, the cartridge groove 34 formed in the disc cartridge 30 is moved to the elastic piece ( Since it is fitted to the engaging piece 22 fixed to the 21), the disc cartridge 30 is protruded slightly by the forward movement force of the moving plate (6).

In this way, when the disc cartridge 30 protrudes slightly, the user grasps the disc cartridge by hand and pulls it out of the guide bracket 2, and then the discharge is completed. At this time, the rotation piece 12 hinged to the main base 1 is torsion Receiving the elasticity of the spring 13 has a rotational force in the clockwise direction in the drawing because the projection 27 formed on the rotating piece 12 through the notch groove 26 formed in one front of the guide bracket (2) disc cartridge The shutter 32 is closed again as it is inserted into the shutter hole 33 of the shutter 32 installed and opened in the 30, so that the cartridge hole 31 of the discharged disc cartridge 30 is closed again.

Therefore, in the present invention, the user only needs to push the disc cartridge to the guide bracket in a horizontal state when inserting the disc cartridge, so that it can be applied to a portable mini disc player as well as portable, and has good compatibility, when inserting and ejecting the disc cartridge. The parts that open or close the shutters installed on the disc cartridge are not deformed according to the long time use of the device, so the opening and closing operations of the shutter are precisely performed, even if the disc cartridge is momentarily applied to the guide bracket by force. Since the buffer plate attenuates the insertion force of the disc cartridge, there are various effects such that damage to various components constituting the deck mechanism is prevented.

Claims (6)

A guide bracket (2) installed horizontally and vertically on the main base (1), and a cushioning plate (3) for reducing the insertion force of the disc cartridge (30) by being slidably installed on one side of the upper surface of the guide bracket (3); And a protrusion (5) formed on the buffer plate to open the shutter (32) installed on the disc cartridge when the disc cartridge (30) is inserted into the guide bracket (2), and the buffer plate (3). A movable plate 6 which is slidably installed on the lower surface to turn on the power switch 8 by receiving the insertion force of the disc cartridge 30, and one end is fixed to the upper surface of the buffer plate 3 to move. The plate 6 is fixed to one side of the upper surface of the plate spring 9 and the buffer plate 3 to lock the movable plate when the power switch 8 is turned on to receive the insertion force of the disc cartridge 30. Buffer A loading switch 10 for operating the loading motor to move the guide bracket 2 when the seat 3 is slid, and a leaf spring fixed to the main base 1 so that the guide bracket 2 moves vertically and horizontally. A stopper 11 for releasing the locking of the movable plate 6 while being in contact with the (9), and the disk is resiliently installed on one side of the upper surface of the main base 1 as the locking of the movable plate 6 is released. Inserting and discharging device of a mini-disc player disc cartridge, characterized in that consisting of a rotating piece (12) for closing the shutter (32) installed in the disc cartridge when the cartridge 30 is discharged again. The method according to claim 1, wherein the plurality of first pins 14 are press-fitted to the upper surface of the guide bracket 2, and the buffer plates 3 are fitted with the plurality of first pins 14 to be fitted to the first pins 14, respectively. And a first bending piece 16 to be bent downwardly at the rear of the buffer plate 3 to insert the disc cartridge 30 into the guide bracket 2. Insertion and ejection of the disc cartridge of the mini-disc player to attenuate the insertion force of the disc cartridge 30 while the buffer plate (3) is slid within the range of the first long hole 15 in accordance with the bending piece (16) Device. The method according to claim 1, wherein a pair of second pins (17) are press-fitted into the buffer plate (3), and guide holes (18) are formed, and each of the second pins (17) is formed in the movable plate (6). A pair of second long holes 19 are formed to be fitted, and a second bent piece 20 is formed to be fitted into the guide hole 18. An elastic piece is provided at the rear of the movable plate 6 to have an elastic force inward. (21) is formed, and when the disk cartridge 30 is inserted into the guide bracket (2) by fixing the locking piece 22 to the end of the elastic piece as the disk cartridge is caught on the locking piece (22) moving plate A mini disc player disc cartridge insertion and ejection device in which the second bending piece 20 turns on the power switch 8 when 6 is slid within the range of the second long hole 19. The method according to claim 1 or 3, wherein the locking projection 23 is formed at the other end of the leaf spring (9) downwardly bent and the locking plate (24) is formed at the movable plate (6) to lock the locking projection (23). Inserting and discharging device of the disc cartridge of the mini-disc player in which the movable plate (6) is locked by the leaf spring (9) as it fits in the groove (24). According to claim 1, wherein the support switch 25 is fixed to the upper portion of the main base (1) before the sliding plate 3 is sliding, the loading switch 10 is turned off as the contact piece 25 in contact with the loading Inserting and discharging device of the disc cartridge of the mini-disc player, so that the motor is not operated and the buffering plate (3) is sliding and the loading switch (10) is shorted on the support piece (25) so that the loading motor is operated. According to claim 1, wherein the notch groove 26 is formed in one front of the guide bracket (2) and the end of the rotating piece 12 to form a projection 27 to be fitted into the notch groove 26 disc cartridge ( 30. The disc cartridge insertion and ejection apparatus of the mini-disc player in which the shutter is closed as the projection (27) is fitted into the shutter hole (33) formed in the shutter (32).