KR0141215B1 - Cartridge ejecting apparatus of optical magnetic disk player - Google Patents

Abstract

Disclosed is a cartridge insertion and extraction device for a magneto-optical disc player for recording and / or reproducing information of the magneto-optical disc stored in the MD using optical pickup and magnetic head. The disclosed apparatus uses a cartridge holding member that is rotated to open and close the deck to load the MD, and includes an ejecting member, a locking member, an unlocking member, and a magnetic head protection member for ejecting the MD contained in the cartridge holding member. Equipped. The device is disclosed as a magnetic head protection member for minimizing the mechanism and minimizing the power consumption, while being suitable for handheld, in particular for completely protecting the magnetic head.

Description

Cartridge insertion and ejection device of magneto-optical disc player

Fig. 1 (a) is a perspective view from above of a recordable magneto-optical disk cartridge.

(B) of FIG. 1 is a perspective view from below of a recordable magneto-optical disk cartridge.

Fig. 2 (a) is a perspective view from above of a remanufactured magneto-optical disc cartridge.

FIG. 2B is a perspective view from below of a reproducing magneto-optical disc cartridge. FIG.

3 is a plan view showing a state where a recordable MD inserted into an open cartridge holding member of a conventional magneto-optical disc player is inserted.

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

5 is a perspective view showing the cartridge holding member of the magneto-optical disc player according to the present invention with the cartridge holding member open.

6 is a side view showing a cartridge insertion and ejection apparatus of the magneto-optical disk player according to the present invention.

Figure 7 is a bottom view showing the bottom of the deck of the cartridge insertion and ejection apparatus of the magneto-optical disk player according to the present invention.

8 is a side view showing an extract of the connection portion between the optical pickup assembly and the magnetic head in the cartridge insertion and extraction apparatus of the magneto-optical disc player according to the present invention.

9 is a plan view showing an extract of the connection portion between the optical pickup assembly and the magnetic head in the cartridge insertion and extraction apparatus of the magneto-optical disc player according to the present invention.

10 is a perspective view showing the cartridge extraction portion and the magnetic head protection member in the cartridge insertion and ejection apparatus of the magneto-optical disc player according to the present invention.

11 is a perspective view showing an extract of a slide member and a slide locking member in the cartridge insertion and ejection apparatus of the magneto-optical disc player according to the present invention.

12 is a plan view showing an initial state in which a recordable MD is inserted into a cartridge holding member of a cartridge insertion and ejecting apparatus of a magneto-optical disc player according to the present invention.

FIG. 13 is a plan view showing a state where a recordable MD is inserted into a cartridge holding member of a cartridge insertion and ejecting apparatus of a magneto-optical disc player according to the present invention; FIG.

Fig. 14 is a plan view for explaining a state in which the cartridge holding member is closed for recording and reproducing after the recordable MD is inserted into the cartridge holding member of the cartridge insertion and ejecting apparatus of the magneto-optical disc player according to the present invention.

FIG. 15 is a sectional view taken along the line B-B in FIG. 13 showing a state in which a reproduction-only MD is inserted into the cartridge holding member of the cartridge insertion and ejecting apparatus of the magneto-optical disc player according to the present invention.

FIG. 16 is a cross-sectional view taken along line B-B in FIG. 13 showing a state where a recordable MD is inserted into a cartridge holding member of a cartridge insertion and ejecting device of a magneto-optical disc player according to the present invention.

* Explanation of symbols for main parts of the drawings

1, 1 ': MD 20: cartridge holding member

30: magnetic head 40: connecting member

50: ejection member 60: locking member

70: locking release member 80: slide member

90: slide locking member 100: magnetic head protection member

11: Deck

The present invention relates to a magneto-optical recording and / or reproducing apparatus for projecting a connected light beam onto a magneto-optical recording medium and simultaneously applying magnetic fields to record information and to reproduce the information recorded therein, in particular the magneto-optical disc being rotatably housed. The present invention relates to a cartridge insertion and ejection device for a portable magneto-optical disk player.

As is well known, a magneto-optical disk has a recording layer which can record desired information and reproduce the recorded information by using an optical pickup for projecting the connected light beam and a bias magnet for applying a magnetic field. The recording layer is made of magnetic material such as terbium iron (TbFe) or terbium iron cobalt (TbFeCo). Such magneto-optical disks have been put into practical use in the form of disc cartridges that are mainly housed in a caddy and loaded with the box into a disc drive.

In recent years, since the magneto-optical disc cartridge of the so-called mini disc (MD) brand whose disc is about 64 mm in diameter is marketed by Sony Japan, the development of the player is in full swing.

There are two types of MD currently on sale: the recordable type shown in Figs. 1 (a) and (b) and the reproduction-only type shown in Fig. 2 (a) and (b). The recordable MD 1 has a shutter which is moved along the sliding groove 6 so as to simultaneously open and close the cartridge cell 2 having the openings 3 and 4 formed on both sides thereof and the openings 3 and 4. 5) has The disc 9 in the cartridge cell 2 is exposed to the openings 3 and 4 whose sides are open, respectively. The MD 1 'for regeneration has a shutter 5' which moves along the sliding groove 6 'so as to open and close the cartridge cell 2' having an opening 3 'formed on one side thereof and the opening 3'. ), And only one side of the disk 9 'can be exposed to the opening 3'. Arrows 7 and 7 'marked on the upper surface of the cartridge cells 2 and 2' of the MDI 1 and 1 'indicate the insertion direction to the player. In addition, at the bottom of each cartridge cell 2 (2 '), recording and recognizing grooves 8 and 8' of different depths are formed so as to recognize whether the inserted MD is recordable or read-only. . Then, power loading holes 10 and 10 'are provided at both left and right sides of the bottom surface of the disc cartridge cells 2 and 2', and cartridge seating grooves 11 and 11 'for seating the disc cartridge on the deck base. A plurality of cartridge cells 2 (2 '') are formed on the bottom surface, and fixing grooves 12 and 12 'are provided on the side surfaces of the disc cartridge cells (see also the first and second views (a)).

On the other hand, there is Sony's portable player (model name: MZ-1) that is currently sold as recording and reproduction for the above-mentioned MDs. The player has a slot for inserting the above MD in a slot-in manner, and projects a spindle motor for rotating the disc of the inserted MD and a light beam connected to one side of the disc. A magnetic head for applying a magnetic field to the optical pickup and the other side of the disk is provided. The cartridge cell of the MD inserted into the slot is loaded onto the deck with the shutter pushed sideways and the opening open, and at the same time the disk in the cartridge cell is seated on a turntable that is rotated by the spindle motor. When the playback mode is selected for the rotating disk, only the optical pickup is operated while the magnetic head is in an excited state. When the recording mode is selected, the magnetic head is brought down by the motor to almost contact the other side of the disk and move with the optical pickup. In any case, when the recording dedicated MD is loaded, the magnetic head does not lower even if the recording mode is selected.

In general, it would be desirable for a portable player to be as light and small as possible and to have low power consumption. However, in the Sony MD player as described above, the slot-in MD insertion structure and the structure of lifting and lowering the magnetic head by the motor are complicated and require a large space, making it difficult to reduce the size and weight of the entire player. There is a problem in that power consumption is large, such as using power to insert and withdraw and to lift the magnetic head.

A technique for mechanically solving such a problem has been filed in Patent Application Nos. 93-9798, but as shown in FIGS. 3 and 4, the recordable MD 1 in FIG. 20, the locking piece 55 of the take-out member 50 is caught by the locking pin 61, and the locking portion 95 of the slide locking member 90 is locked by the locking bin 94. As shown in FIG. Then, in Fig. 4, the support rod 86 which supports the protrusion 45 of the head support member 32 while the slide member 80 is retracted while the recordable disc cartridge 1 protrudes 85. This retreat, the head support member 32 is lowered and the magnetic head 30 is in contact with the upper surface of the disk (9). At this time, if the consumer takes out the MD 1 for other reasons such as exchanging with another MD in the open state without closing the cartridge holding member 20 in which the MD 1 is inserted, the magnetic head 30 that has already been lowered may be damaged. The problem remained.

Accordingly, it is an object of the present invention to provide a cartridge insertion and extraction device for a magneto-optical disk player that is light and small and low power consumption for portable use, and a cartridge of an magneto-optical disk player in which the magneto-optical MD is mechanically loaded and unloaded into the main body In providing an insertion and extraction device, there is a complete protection of the magnetic head.

The cartridge insertion and ejection apparatus of the magneto-optical disk player according to the present invention for achieving the above object is inserted into the magneto-optical disk cartridge, the magneto-optical disk is received and the fixing groove is formed in the side is inserted and rotated to load the magneto-optical disk cartridge A cartridge insertion and extraction device for a magneto-optical disc player having a cartridge holder to be operated and a magnetic head descending to be joined to the inserted magneto-optical disc, the cartridge insertion and extraction device comprising: a supporting portion for supporting the magnetic head not to be lowered; A retrievable member removably pushed by the magnetic disk cartridge and ejecting the inserted magneto-optical disk cartridge, locking means for locking the ejection member in the moved position, and moving in accordance with the rotation operation of the cartridge holder; A locking release member and a lock of the ejecting member; Interlocking means for interlocking the locking means from the locking release member so that the state is released, and the inserted magneto-optical disc cartridge is prevented from being separated in the ejecting direction, and the locking state is released by the movement of the locking release member. And a magneto-optical disk cartridge ejection preventing means for making it.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the cartridge insertion and ejection apparatus of the magneto-optical disk player according to the present invention.

In FIGS. 5 and 6, reference numeral 110 is a deck and 20 is a cartridge holding member. Deck 110 has an upper surface 111 on which MD 1 or MD 1 ′ shown in FIG. 1 or 2 is loaded. The upper surface 111 is provided with a turntable 112 on which the MD magneto-optical disk as shown in FIGS. 6 and 7 is mounted, and a cartridge guide pin 120 for seating the MD 1 is provided. have. The turntable 112 is directly connected to a spindle motor 113 mounted beneath the deck 110, under which the guide rod 115 and the screw shaft 116 alongside the optical pickup assembly 114 are also arranged. It is supported so as to be movable in the a3 direction by the rotation of the screw shaft 116. The screw shaft 116 is connected to the feed motor 118 through the gear group 117. The optical pickup assembly 114 has an objective lens 119 and projects a light beam connected by the objective lens 119 to one side of the magneto-optical disk seated on the turntable 112 on the top of the deck 110. The optical pickup assembly 114 also receives a light beam reflected from the magneto-optical disk as usual and detects an electrical signal such as a reproduction signal.

In FIG. 5, the cartridge holding member 20 houses the MD 1 or 1 shown in FIG. 1 or 2 inserted in the a1 direction, and is connected to the deck 110 by a hinge 21. In FIG. It can be rotated in the a2 direction shown in Figure 6 to contact the upper surface of the deck (110). One side surface of the cartridge holding member 20 is ejected in the opposite direction to the shutter opener 22 which opens the shutter 5 or 5 'shown in FIGS. 1 and 2 when the MD is inserted. A shutter closer 23 for returning the shutter 5 or 5 'to be closed is provided. There is a magnetic head 30 on top of the cartridge holding member 20. The magnetic head 30 rests at the end of the flexible leaf spring 31, and the leaf spring 31 is supported by the head support member 32. There is also a connecting member 40 that connects the optical pickup assembly 114 and the head support member 32, which is shown in FIGS. 8 and 9. It consists of a pick-up connecting portion 41 and a head connecting portion 42 connected to the head support member 32 and a hinge portion 43 connecting the pick-up connecting portion 41 and the head connecting portion 42. The hinge portion 43 has a central axis collinear with the hinge 21 connecting the deck 110 and the cartridge holding member 20. That is, the optical pickup assembly 114 and the magnetic head 30 can be conveyed together in the a3 direction shown in FIG. 7 by the connecting member 40, and the magnetic head 30 has its head support member 32. And the head connecting portion 42 to rotate in the a2 direction as shown in FIG. 6, such as the opening and closing direction of the cartridge holding member 20. On the other hand, the magnetic head 30 is wound around the hinge portion 43 and elastically biased downward by the torsion coil spring 44 whose one end spans the head connection portion 42. And the upper surface 111 of the deck is provided with an MD seating pin 120 (see FIG. 6) for guiding the seating of the MD for accurate seating of the MD, the MD seating pin 11 is the cartridge seating groove 11 of the MD Is inserted into and performs its function.

In FIG. 8, the head connecting portion 42 of the connecting member 40 is provided with a protrusion 45 protruding downward, which is intended to interlock with the magnetic head lifting means described later. In addition, the adjusting screw 46 is screwed to penetrate the pick-up connecting portion 41 and the end thereof is provided to reach the rear end of the head connecting portion 42, which is for adjusting the horizontal state of the head support member 32. will be.

5 and 10, the ejection member 50, the locking member 60, and the unlocking member 70 of the ejection means for pushing forward the MD to be stored forward on the upper surface of the cartridge holding member 20 The magnetic head protection member 100 is provided in preparation for the forced ejection of the consumer's MD 1.

The extraction member 50 is supported by the long hole 51 and the support pin 52 so as to be movable forward and backward and is elastically biased forward by the spring 53. The ejection member 50 includes a contact portion 54 which comes into contact with the front surface of the MD to be inserted, a locking piece 55 that is caught by the locking piece 61 of the locking member 60, and a magnetic head which extends to one side. It has the head support part 56 which can support the head support member 32 of 30. As shown in FIG.

The locking member 60 is rotatably supported by the pivot 62 and elastically biased counterclockwise by the torsion spring 64, and has a release pin 63 on the opposite side thereof. The release pin 63 is interlocked with the projection 72 of the spring member 71 which is pivotally supported by the locking release member 70 so that the locking piece 61 can recede clockwise.

The locking release member 70 is movably supported forward and backward by the long hole 73 and the support pin 74, and is connected to the deck 110 through the link 75, the locking release member 70 Outside of the) is provided with a locking release projection 77 for interlocking the magnetic head protection member 100 to be described later. The locking release member 70 moves forward and backward with the string member 71 on the cartridge holding member 20 in association with the opening and closing of the cartridge holding member 20.

And, as shown in Figure 6, the magnetic head protection member 100 is installed on the left side 200 of the cartridge holding member 20 is elastically biased in the clockwise direction by the locking lever spring (104) Locking lever 101 and the locking lever spring supporting portion 105 for supporting the force of the locking lever spring and the engaging portion 102 to be caught in the fixing grooves 12, 12 'of the MD (1) (1') The locking lever and the locking lever spring are fitted to the locking lever support rod 107 provided on the lower side of the cartridge holding member 20, and a washer 106 is fastened to the locking lever support rod 107 at the lower portion thereof. It is. The locking lever protrusion 103 is formed on the locking lever 101 in conjunction with the locking release protrusion 77 of the locking release member 70.

As shown in Figs. 3 and 11, on the upper surface of the cartridge holding member 20, it is recognized whether the inserted MD is recordable, and when the recordable MD 1 as shown in Fig. 1 is housed, A slide member 80 of elevating means for elevating the magnetic head 30 in association with the recordable MD 1 is provided. The slide member 80 is supported to be able to move forward and backward slightly by the long hole 81 and the support pin 82 in FIG. 11 and is elastically biased forward by the spring 83. The slide member 80 has a protruding pin 85 provided in the bending portion 84 of the rear end. The protruding pins 85 are provided at points coinciding with the recognition grooves 8 (8 ') formed in the MD (1) 1' of FIGS. 1 and 2 to be inserted, and the recordable MD (1). It is considered to enter into the recognition groove 8 of the MD 1 ′ for reproduction only, without going into the recognition groove 8 of the present invention. On the slide member 80, the head support rod 86, which is approximately the length of the radial range of the magneto-optical disk, is fixedly coupled by two fixing plates 87 and 88.

The slide member 80 has a support plate 91, and the slide locking member 90 having the long hole 92 in the transverse direction is supported by the support pin 91 so as to be able to move slightly in the transverse direction. It is elastically biased toward the extraction member 50 by 93. As shown in FIG. The slide locking member 90 is interlocked with the locking part 95 which can be caught behind the locking piece 94 installed in the cartridge holding member 20 and the interlocking pin 57 provided in the takeout member 50. It has a locking release part 96 which pulls back so that the locking state of the locking part 95 may be released.

Hereinafter, the operation of the cartridge insertion apparatus of the magneto-optical disc player according to the embodiment of the present invention described above will be described.

When the above-mentioned consumer inserts MD (1) into the cartridge holding member 20 and removes MD (1) to exchange with another MD without closing the cartridge holding member 20, the recordable MD can be damaged if the magnetic head is damaged. Appears when (1) is inserted. That is, as shown in FIG. 6, the portion of the recording / playback recognition groove 8 of the recordable MD 1 pushes the protruding pin 85 so that the slide member 80 moves as shown in FIG. ) Is moved so that the magnetic head 30 comes into contact with the upper surface of the disk 9, thereby causing damage to the head due to forced ejection.

However, in the case of the reproduction-only MD 1 ', as shown in FIG. 15, the groove depth of the recording / playback recognition groove 8' is larger than that of the recording / playback recognition groove 8 'of the recordable disc cartridge 2; Deeper than the depth, the protruding pin 85 of the slide member 80 is inserted into the recording and reproduction recognition groove 8 'so that the slide member does not move and the magnetic head 30 does not lower, resulting in breakage of the magnetic head. There is no problem.

Therefore, the cartridge insertion and ejection apparatus of the magneto-optical disc player according to the present invention using the recordable MD 1 will be described with reference to FIGS. When the cartridge holding member 20 is opened and the MD 1 is inserted into the cartridge holding member 20 as shown in FIG. 5, the front surface of the MD 1 once inserted as shown in FIG. It comes in contact with the contact portion 54 of the extraction member 50. When the MD 1 is pushed in this state, the spring 53 is extended while the ejecting member 50 is pushed in the a7 direction of FIG. 5, and the locking piece 55 of the ejecting member 50 is locked as shown in FIG. The locking piece 61 of the member 60 is locked. The locking piece 55 is formed to be inclined on one side and easily passes through the locking piece 61, and the locking piece 61 is immediately returned, so that the locking action is smoothly locked. 13 and 16, the protruding pin 85 provided in the bending portion 84 of the slide member 80 does not enter the recognition groove 8 of the MD 1, It is in contact with the front. Subsequently, if the MD 1 continues to be pushed, the slide member 80 is pushed backwards, and the projections 45 protruding from the head connection portion 42 of the 14 and 15 degree churn coupling members 40 are pushed. The supporting rod 86 supporting is also retreated. As a result, the magnetic head 30 is lowered, thereby contacting the magneto-optical disk 9 in the MD 1.

Meanwhile, as shown in FIGS. 10 and 13, when the magneto-optical disk cartridge 1 is completely inserted, the locking lever 101 acts on the locking lever support rod 107 by the action of the locking lever spring 104. While moving in the direction, the locking portion 102 is caught by the fixing grooves 12 and 12 'of the MD 1. In this state, even if the consumer takes out the MD (1) 1 'for other reasons such as exchanging with another MD, as described above, the fixing grooves 12, 12' are caught in the catching part 102. (1) does not fall out, and the magnetic head 30 which contacts the upper surface of the disk 9 can be protected safely.

Subsequently, when the consumer lowers the cartridge holding member 20 so that the MD 1 stored in the cartridge holding member 20 is loaded on the upper surface of the deck 110, the descending cartridge holding member 20 and By interlocking of the link 75 of FIG. 5, the protrusion 72 of the spring member 71 supported by the unlocking member 70 is moved in the a8 direction so as to be in front of the release pin 63 of the locking member 60. Will be located. The spring member 71 is weaker than the torsion spring 64 elastically biasing the locking member 60 in the counterclockwise direction, so that the locking state of the locking member 60 is not released. Then, when the unlocking protrusion 77 moves in the a8 direction and hits the locking lever protrusion 103, the locking lever 101 rotates in the a10 direction and when the unlocking protrusion 77 passes, the locking lever spring 104 immediately follows. Return by

Subsequently, the cartridge insertion and ejection apparatus of the magneto-optical disc player of the present invention selectively performs a predetermined recording and / or reproducing function in a state as shown in FIG. 14, and holds a cartridge to replace it with another MD 1. When the member 20 is opened, the link 75 shown in FIG. 5 pulls the unlocking member 70 in the direction opposite to A8. Then, the spring member 71 of the locking release member 70 pushes the release pin 64 of the locking member 60, and the locking member 60 rotates in the counterclockwise direction, and the locking pin 61 ) Is released from the locking piece 55 of the takeout member 50, and the locked state is released. The locking release protrusion 77 of the locking release member 70 pushes the locking lever protrusion 103 of the magnetic head protection member 100 to lock the locking lever 101 of the MD 1. Locking is released by rotating it counterclockwise around the locking lever support rod 107 shown in FIG.

In this way, when the locked state of the take-out member 50 is released and the locked state of the magnetic head protection member 100 is released, it moves in the opposite direction to a7 shown in FIG. 5 by the restoring force of the tensioned spring 53. .

At this time, the interlocking pin 57 of the takeout member 50 touches the release portion 96 of the slide locking member 90 while the interlocking pin 57 of the takeout member 50 moves in the takeout direction. By being pushed upward, the locking portion 95 of the slide locking member 90 is released from the locking pin 94 and the slide member 80 is also returned to its original position. Therefore, the supporting rod 86 is also in place and the magnetic head 30 is raised. In addition, in the present invention, the bearing portion 56 is formed in the head support member 32 of the magnetic head 30 in the extraction member 50, which is shown in FIG. In the same manner, the head supporting member 32 acts to rise as it moves in the extraction direction. Therefore, when the MD 1 is taken out, there is no fear that the magnetic head 30 will come into contact with the taken out MD 1 and be damaged.

As described above, the cartridge insertion and extraction device of the magneto-optical disc player of the present invention has a simple structure of inserting and loading and unloading the MD into the door-type cartridge holding member, which is very advantageous for volume reduction of the device, and also cartridge holding. It is possible to achieve low power consumption without using power for opening and closing the member and lifting the magnetic head. Therefore, the present invention can be said to be very effective for miniaturization of a similar device such as an auxiliary memory device of a computer as well as a cartridge insertion and extraction device of a portable magneto-optical disk player.

Therefore, the cartridge insertion and ejection apparatus of the magneto-optical disk player according to the present invention can be further miniaturized and is very suitable for portable as a low power consumption, and can completely protect the magnetic head.

Claims (2)

The magneto-optical disk cartridge, in which the magneto-optical disk is received and the fixing groove is formed in the side, is inserted, the cartridge holder rotated to load the magneto-optical disk cartridge, and the magnetic head descending to contact the magneto-optical disk to be inserted. A cartridge insertion and extraction device for a magneto-optical disk player, comprising: a supporting portion for supporting the magnetic head so that the magnetic head cannot be lowered and movable to be pushed by the inserted magneto-optical disk cartridge and to recover the inserted magneto-optical disk cartridge. A take-out member, locking means for locking the take-out member in its moved position, a locking release member moving in accordance with the rotation operation of the cartridge holder, and a locking release member to release the locking state of the take-out member. From the interlocking means for interlocking the locking means, and And a magneto-optical disc cartridge ejection preventing means for walking the inserted magneto-optical disc cartridge so as not to be separated in the ejecting direction and releasing the locking state by the movement of the unlocking member. Cartridge inserter. 2. The locking lever according to claim 1, wherein the ejection prevention means is installed to rotate to a locking lever supporting rod provided on a lower side of the cartridge holding member, and is formed with a bent portion to the left side of the cartridge holding member, and the locking lever is elastically clockwise. An elastic support member for biasing, a locking portion bent such that one side of the locking lever is caught by the fixing groove of the MD, and a locking lever protrusion for rotating the locking lever counterclockwise by interlocking of the unlocking portion. Characterized in the cartridge insertion and ejection device of the magneto-optical disk player.