KR0138344B1 - Magnetic head lifting device of magneto-optical disk player - Google Patents

Abstract

The present invention relates to a magnetic head lift device of a magneto-optical disk player, and does not use a motor, and the magnetic head lift of the magneto-optical disk player, which allows the magnetic head to be lifted by members interlocked with the recognition groove of the inserted disc cartridge. To provide The present invention includes a disk cartridge ejecting member which is installed to be movable back and forth on an upper surface of a cartridge holder hinged to a deck; A support lever rotatably installed on one side of the connection member fixed to the optical pickup assembly, and a support plate on which the magnetic head is elastically supported, and a cam formed on the lower side thereof; A slide plate installed in the cartridge holder so as to be movable back and forth, and provided with an interlocking pin interlocked with a recognition groove of the disc cartridge at an end thereof, and having an interlocking portion interlocked with the cam to elevate the magnetic head; Means for locking and releasing the movement position of the slide plate; It is provided.

Description

Magnetic Head Lift in Magneto-optical Disc Player

1 (a) and (b) are perspective views showing a disc cartridge for recording and a disc cartridge for reproduction only.

2 is a perspective view showing a magneto-optical disc player to which the present invention is applied.

3 is a side view of FIG. 2.

4 is a plan view of the third view viewed from the A direction.

5 is a perspective view showing an extract of the magnetic head lifting device according to the present invention.

Fig. 6 is a plan view showing a state where a dedicated disk cartridge is inserted into a cartridge holder.

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

8 is a plan view showing a state where a recording disc cartridge is inserted into a cartridge holder.

9 is a cross-sectional view taken along line B-B in FIG.

10 is a plan view showing a cartridge holder seated on a deck with a recording-only disk cartridge inserted in the cartridge holder;

11 is a cross-sectional view taken along the line C-C of FIG.

Figure 12 (a) (b) is a side view outside the top view showing a state in which the magnetic head is raised by the elevating piece formed in the take-out member of the magnetic head lifting device according to the present invention.

Figure 13 (a) (b) is a plan view and a side view showing a state in which the magnetic head is lowered by the elevating piece formed in the take-out member of the magnetic head lifting device according to the present invention.

* Description of the symbols for the main parts of the drawings *

1 ... deck 2 ... turntable

3 ... optical pickup assembly 5 ... cartridge holder

6 ... recording disc cartridge

6 '... Disc cartridge for playback 7 ... Magnetic head

9 ... support lever 9a ... cam

12 ... withdrawal member 16 ... spring

17 ... Locking piece 21 ... Rotating member

22 ... Locking pin 23 ... Locking release pin

24 ... spring 31 ... open slide plate

32 ... Link 33 ... Mold spring

34 ... Interlocking protrusions 41 ... Slide plate

43 ... Bending piece 44 ... Interlock pin

45 ... spring 46 ... linkage

47 ... Interlocking rods 47a ... Home

48 ... leaf spring 50 ... slide plate locking and unlocking means

51 ... Locking member 54 ... Locking jaw

55 ... locking pin 56 ... spring

57 ... Locking release pin 60 ... Magnetic head lift

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head lifting device of a magneto-optical disk player, and more particularly, to a magnetic head lifting and lowering by members interlocked with a recognition groove of a disc cartridge to be inserted without using a separate motor. It relates to a magnetic head lifting device.

In general, magneto-optical disks have the advantage of being capable of repeating recording and erasing of information and having a high recording density of information storage.

As shown in Fig. 1 (a) and (b), the disc cartridge containing the magneto-optical disc includes a recording disc cartridge 6 capable of recording and reproducing, and a disc cartridge 6 for exclusive use of reproduction only. There is').

Looking at the difference between these recording and reproducing disc cartridges, first, the recording disc cartridge 6 is configured such that both upper and lower surfaces of the magneto-optical disc are opened by the window 6b, and the reproducing disc cartridge 6 'is made of a window. The lower surface of the magneto-optical disk is opened by 6b ', and the depths of the grooves 6a and 6a' formed on one lower surface of the magneto-optical disk are higher than that of the recording disk cartridge 6. ') Is deeper.

BACKGROUND ART Conventional magneto-optical disc players for recording or reproducing information by using such disc cartridges have recently been marketed by Sony.

The magneto-optical disc player marketed by Sony Inc. is configured such that the loading and unloading of the disc cartridge is performed by the front loading method by the power transmission members such as the motor and the gear, and the magnetic head is mounted on the motor and the gear. Is compressed onto the magneto-optical disk during recording, and separated from the magneto-optical disk during reproduction and ejection of the disc cartridge.

Therefore, the number of components is complicated, the structure is complex, and there is a problem such that the power consumption and cost increases because of the use of a motor.

The present invention has been made in view of the above-described problems, and uses a magnetic head of a magneto-optical disk player which allows the magnetic head to be lifted by members interlocked with a recognition groove of a disc cartridge to be inserted without using a separate motor. The purpose is to provide a lifting device.

In order to achieve the above object, the present invention, a disk cartridge ejecting member is installed to be movable back and forth on the upper surface of the cartridge holder hinged to the deck;

A support plate having one side rotatably installed on a connection member fixed to the optical pickup assembly, a support plate on which the magnetic head is elastically supported, and a cam formed at a lower portion thereof;

It is installed to be movable back and forth to the cartridge holder and at the same time to be elastically biased toward the disc cartridge insertion hole by a spring, and the interlocking pin is interlocked with the recognition groove of the disc cartridge at the front end, and interlocked with the cam on the upper surface of the magnetic head Slide plate provided with an interlocking portion for elevating;

Means for locking and releasing the movement position of the slide plate;

Its features are configured with.

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

The magnetic head lifting device of the magneto-optical disk player according to the present invention has a disc cartridge on one side of the upper surface of the deck 1 on which the turntable 2 and the optical pickup assembly 3 are installed, as shown in FIGS. One side of the cartridge holder 5 into which (6) and 6 'is inserted is hinged rotatably, and a magnetic head 7 is positioned above the cartridge holder 5.

The magnetic head 7 is fixed to the support lever 9 in a state of being elastically supported by the support plate 8, and the support lever 9 is rotated to the connecting member 10 fixed to the optical pickup assembly 3. It is installed so as to be able to elastically bias downward by the spring 11 at the same time.

In addition, the upper surface of the cartridge holder 5, the disk cartridge ejecting member 12 for ejecting the inserted disk cartridge 6 (6 ') is installed to be moved back and forth by the guide slot 14 and the guide pin 15. At the same time, the spring 16 is installed to be elastically biased toward the disc cartridge insertion hole, and the ejection piece 13 is bent downward at the tip of the ejecting member 12 to be in contact with the tip of the disc cartridge 6, 6 '. Is formed.

On the upper surface of the cartridge holder 5, the locking member 22 having the locking pin 22 and the locking release pin 23 formed at both ends thereof has a locking surface 22 formed at one side by a spring 24 to take out the member ( It is installed to be elastically biased toward the 12), the locking piece 17 is formed on one side of the take-out member 12 is caught by the locking pin 22 of the rotating member 21.

In addition, an open slide plate 31 connected to the deck 1 and a link 32 is installed on the upper surface of the cartridge holder 5 so as to be movable back and forth, and the open slide plate 31 of the rotating member 21 A mold spring 33 having an interlocking protrusion 34 for releasing the locked state of the rotating member 21 in cooperation with the unlocking pin 23 is installed.

On the upper surface of the cartridge holder 5, the slide plate 41 having the disc opening hole 42 and the downward bending piece 43 is linearly moved back and forth by the guide slot 45 and the guide pin 46. It is installed, the bent piece 43 is provided with an interlocking pin 44 interlocked with the recognition groove (6a) (6a ') of the disc cartridge (6) (6') is inserted, the slide plate 41 is The spring 45 is installed to be elastically biased toward the disc cartridge insertion hole.

A cam 9a is formed below the support lever 9, and one side of the upper surface of the slide plate 41 is connected to the cam 9a of the support lever 9 to raise and lower the support lever 9. The linkage is provided.

The linkage part is installed in the slide plate 41 in the longitudinal direction and consists of a circular rod 47 supported by a pair of leaf springs 48, one end of the leaf spring 48 is inserted into the circular rod 47 Grooves 47a are formed.

And the slide plate 41 is fixed in the state moved by the locking and unlocking means 50, and is installed so that the position fixed state is released when the disc cartridge is taken out.

The slide plate locking and releasing means 50 is installed on the slide plate 41 by a guide long hole 52 and a guide pin 53 to move left and right, and a locking member 54 having a locking jaw 54 formed at one side thereof. (51), a locking pin (55) installed on the upper surface of the cartridge holder (5) and interlocked with the locking jaw (54), and a spring for biasing the locking member (51) toward the locking pin (55) ( 56 and a locking release pin 57 installed on the takeout member 12 and interlocked with the locking member 51 to release the locking state of the locking member 51.

In addition, as shown in FIGS. 12 and 13, the ejecting member 12 is interlocked with the magnetic head support piece 8 provided on the support lever 9 when the disk cartridge 6 is ejected. (7) A magnetic head elevating piece 60 having an inclined surface for lifting is formed to protrude upward.

The magnetic head elevating device of the magneto-optical disc player according to the present invention configured as described above is operated as follows.

First, as shown in FIGS. 3 and 4, when the reproducing disc cartridge 6 'is inserted into the cartridge holder 5 while the cartridge holder 5 is raised, the reproducing disc cartridge 6' The front end of the ejection member 12 advances while pushing the ejection piece 13 so that the locking piece 17 of the ejection element 12 is caught by the locking pin 22 of the rotation member 21, thereby allowing the disc cartridge 6 to be regenerated. ') Is locked into the cartridge holder 5 as shown in FIG.

At the same time, the interlocking pin 44 provided in the bending piece 43 of the slide plate 41 in the recognition groove 6a 'formed at the tip of the disc cartridge 6' for exclusive use as shown in FIG. As the slide plate 41 is not moved, the magnetic head 7 is not lowered while being raised.

Then, when the recording disc cartridge 6 is inserted into the cartridge holder 5, the tip of the recording disc cartridge 6 moves forward while pushing the ejecting piece 13 of the ejecting member 12 to lock the ejecting member 12. The piece 17 is caught by the locking pin 22 of the rotating member 21 so that the recording disc cartridge 6 is locked as shown in FIG. 8 with the recording disc cartridge 6 inserted into the cartridge holder 5.

At the same time, the interlocking pin 44 provided on the bending piece 43 of the slide plate 41 is not inserted into the recognition groove 6a of the recording disc cartridge 6, as shown in FIG. As it is pushed by the disk cartridge 6, the slide plate 41 is advanced by a distance corresponding to the length of the interlocking pin 44.

Therefore, the circular rod 47 provided on the slide plate 41 is separated from the cam 9a formed at the lower part of the support lever 9, and is provided by the spring 11 which elastically biases the support lever 9 downward. The magnetic head 7 fixed to the support lever 9 is lowered to be pressed onto the disc housed in the disc cartridge 6.

At the same time, as the locking member 51 of the slide plate locking and releasing means 50 is moved in the direction of arrow C by the elasticity of the spring 56, the locking jaw 54 of the locking member 51 moves to the cartridge holder 5. Engaged in the locking pin 55 installed in the slide plate 41 is locked as shown in Figure 8 in the moved position.

Then, when the record-only disc cartridge is locked, the cartridge holder 5 is lowered and seated on the deck 1 as shown in FIG. 11, and the open slide plate connected to the deck 1 by the link 32 is provided. 31 is advanced and positioned as shown in FIG.

At this time, the inclined surface of the interlocking protrusion 34 formed on the mold spring 33 is in contact with the unlocking piece 23 of the rotating member 21 and is bent as shown in the imaginary line, thereby locking the extraction member 12. The state is not released, and recording and reproduction are performed in this state.

When the disc cartridge is taken out during recording or recording, the cartridge holder 5 is raised to move the open slide plate 31 connected by the deck 1 and the link 32 in the direction of arrow B. As the open slide plate 31 is moved, the interlocking protrusion 34 of the mold spring 33 installed therein pushes the unlocking pin 23 of the rotating member 21 to release the locking state of the takeout member 12.

Therefore, the locking member 51 is moved in the direction of the arrow D as the locking member 51 moves in the direction of the arrow A while the ejecting member 12 moves in the direction of the arrow A, thereby locking the locking member 51. The jaw 54 is separated from the locking pin 55 installed in the cartridge holder 5 so that the locking state of the slide plate 51 is released, and the slide plate 41 is moved to the arrow B by the elasticity of the spring 48. Will be moved in the direction.

Therefore, as shown in FIG. 7, the magnetic head 7 is moved from the disk in a state in which the circular rod 47 provided on the slide plate 41 and the cam 9a formed at the lower portion of the support lever 9 are in contact with each other. The magnetic head 7 is not damaged by the window 6b when the disc cartridge 6 is taken out.

In this case, as shown in FIGS. 12 and 13, the magnetic head elevating piece 60 formed on one side of the ejection member 12 is in contact with the support piece 8 on which the magnetic head 7 is elastically supported. As the head 7 is lifted, even when the locking state of the locking member 51 is not released or the round bar 47 and the cam 9a do not come into contact due to mechanical defects, It is not damaged by the window 6b.

As described above, the magnetic head elevating device of the magneto-optical disk player of the present invention does not use a motor, and the magnetic head is lowered when the recording disk cartridge is inserted by the interlocking pins and the slide plate which interlock with the recognition groove of the disk cartridge. In addition, since the magnetic head is kept raised when the disc cartridge for regeneration is inserted, the structure and the assembly are simpler and the cost can be reduced as compared with the conventional method of using a power transmission member such as a motor and a gear. There is such an advantage.

Claims (4)

A disc cartridge ejecting member installed on the deck so as to be movable back and forth on an upper surface of the cartridge holder hinged to be rotatable; A support plate having one side rotatably installed on the connection member fixed to the optical pickup assembly, and a support plate on which the magnetic head is elastically supported, and a cam formed at the bottom thereof; It is installed to be movable back and forth to the cartridge holder and at the same time to be elastically biased toward the disc cartridge insertion hole by a spring, and the interlocking pin is interlocked with the recognition groove of the disc cartridge at the front end, and interlocked with the cam on the upper surface of the magnetic head Slide plate provided with an interlocking portion for elevating; Means for locking and releasing the movement position of the slide plate; Magnetic head lifting device of a magneto-optical disk player, characterized in that provided with. The method of claim 1, The interlocking portion is provided in the longitudinal direction on the slide plate and formed with a circular rod having a groove on at least one side, and a pair of leaf springs supporting the circular rod with one side inserted into the groove of the circular rod, characterized in that the magneto Magnetic head lift in a disc player. The method of claim 1, The slide plate locking and releasing means is installed to be movable to the left and right on the slide plate, the locking member formed with a locking jaw on one side, the locking pin is installed on the upper surface of the cartridge holder and the locking jaw, the locking member A magnetic head lifting device of a magneto-optical disc player, characterized in that it comprises a spring for elastically biasing the locking pin toward the locking pin, and a locking release pin installed on the ejection member and interlocked with the locking member to release the locking state of the locking member. . The method of claim 1, And an elevating piece having an inclined surface for lifting the magnetic head in association with the magnetic head supporting piece provided on the support lever when the disk cartridge is ejected from the ejecting member.