KR890005700Y1 - Recording & displaying device for disk cattrige - Google Patents

Abstract

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Description

Recording and playback device for disc cartridge

The drawings are all for explaining the recording and reproducing apparatus for a disc cartridge according to the embodiment of the present invention.

1 is a plan view of a recording / reproducing apparatus and a magnetic disk cartridge showing the state before the magnetic disk cartridge loading.

2 is a plan view of the recording and reproducing apparatus after mounting the magnetic disk cartridge.

3 and 4 are side views of the side plate viewed from the inside to explain the operation of the cam plate.

5 and 6 are side cross-sectional views for explaining the operation of the lock lever.

7 is a side view of the side plate viewed from the outside.

* Explanation of symbols for main parts of the drawings

6: low-dreader 7: caratridge holder

8 magnetic disc cartridge 14 ejector lever

15: cam plate 20: cam portion

29: fixed lever 31: engaging portion

33: solenoid 36: fixed member

43: release pin

The present invention relates to, for example, a disc reproducing apparatus for disc cartridges, such as magnetic disc cartridges, and more particularly to an eject mechanism.

This type of ejection mechanism of the related art generally uses the rotational force of the motor, that is, decelerates and discharges the magnetic disk cartridge.

Therefore, the structure is complicated, such as a reduction device for this purpose. Become large. In addition, if there is a malfunction on the machine during operation. Disc cartridges simply could not be ejected, resulting in reliability problems.

The purpose of the present invention. Eliminate these drawbacks of the prior art. The structure is simple. Downsizing. It is not only possible to reduce the thickness, but also to provide a disc recorder for recording and reproducing a disc cartridge, which can be easily discharged even if a failure occurs during operation.

In order to achieve the above object, the present invention provides a cartridge holder, which accommodates a disc cartridge and is movable between an eject position and a lock position, and a low-dreader which applies the elastic force to the lock position. And a movable fixing member for holding the cartridge holder at the ejected position in engagement with the door lever, a cam plate that is elastically applied toward the disc insertion axis and is horizontally moved in contact with the disc cartridge, The discharge force is accumulated by the fixed lever having the engaging portion and the possible engaging portion, an electronic solenoid which is excited by the eject signal and releases the engagement with the cam plate to move the fixing lever. And an eject lever, to release the lock lever from the lock member to the cam plate. The Carr cartridge and the fixed releasing portion for moving the holder to a low position and a de Cardan cartridge holder through the call Wood lever, characterized in that a cam portion, respectively for returning to the eject position from the low position de.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a plan view of a recording / reproducing apparatus and a magnetic disk cartridgeage showing the state before the magnetic disk cartridge loading, and FIG. 2 is a plan view of the recording / reproducing apparatus after the magnetic disk cartridge loading. 3 and 4 are side views of the cam plate from the inside to illustrate the operation, 5 and 6 are side cross-sectional views for explaining the operation of the lock lever, and FIG. 7 is a side view of the side plate from the outside. .

First, a schematic configuration of a recording / reproducing apparatus will be described with reference to FIG. At the predetermined position of the frame 1, a disc rotating shaft 2, a carriage 3 on which a magnetic head and a pad are mounted, a step motor 4 for moving the carriage 3, and the like are disposed, respectively.

A pair of side plates 5 and 5 are broken by screws on both sides of the frame 1, and the cartridge holder 7 is arranged inside the one side plate 5 via a lock lever 6. A cartridge insertion port is provided at the right end of the cartridge holder 7, from which the magnetic disk cartridge 8 is inserted toward the carriage 3 side. The magnetic disk cartridge 8 is formed of a hard synthetic resin, and has a case 11 having a magnetic head inserting portion 9, a rotating shaft inserting hole 10, etc. formed at a predetermined position, and a magnet freely rotating in the case 11. The disk 12 and the shutter 13 which covers the magnetic head insertion hole 9 of the case 11 are comprised. Between the side plate 5 and the carriage 3, an eject lever 14 is provided which opens the shutter 13 and accumulates the disc carcass paper ejection force. The overall configuration is as described above.

On the inner surface of one side plate 5, the cam plate 15 is slidably provided in the longitudinal direction. That is, as shown in FIG. 3 and FIG. 4, the cam plate 15 is provided with two long holes 16 and 16, and the pins 17 and 17 'provided in the side plate 5, respectively. The cam plate 15 is slidably supported by being inserted into the holes 16 and 16, respectively.

In addition, a locking pin 18 that is a locking portion is formed at the tip of the cam plate 15, and a spring latching protrusion 19 and a cam portion 20 are provided in the middle. One end of the tension spring 21 is applied to the spring latch protrusion 19, and the other end of the tension spring 21 is caught by the spring latch 22 formed on the lock lever 6. With the tensile force of the cam plate 15 is always the elastic force is applied toward the cartridge insertion port side.

In addition, the cam unit 20 is. The upper flat part 20a, the inclined part 20b, and the lower flat part 20c are comprised, and the hole 23 of a vertical length is provided in the part which opposes the said cam part 20 of the said side plate 5, and is not shown in figure. Although not, the same hole is provided also in the opposing part of the other side plate 5.

In the vicinity of the center of the cam plate 15, the rotation lever 24 is freely supported about the shaft 25, and the tip of the rotation lever 24 has an inner side as shown in FIG. 1 and FIG. An abutting portion 26 is formed in contact with the magnetic disk cartridge 8. Reference numeral 27 is a pressing plate formed of a leaf spring.

One end of the pressing plate 27 is fixed to the upper surface of the cartridge holder 7, and the other end is elastically in contact with the rotary lever 24.

Reference numeral 28 denotes a stopper formed by protruding a part of the cam body 15, and the rotary lever 24 contacts the stopper 28 to support rotation below the horizontal position.

The fixing lever 29 is supported on the inner surface of the side plate 5 so as to be rotatable around the support pins 30 so as to correspond to the cam stay 15.

One end of the fixing lever 29 is provided with an engaging portion 31 that can engage with the engaging pin 18 at the tip of the cam body 15, and a drooping portion 32 provided at the other end of the fixing lever 29. ) Is connected to the armature 34 of the solenoid 33.

By the pressing force of the coil spring 35 inserted into the outside of the armature 34, the fixing lever 29 is engaged with the locking pin 18 by the engaging portion 31 around the support piece 30. The elastic force is always working.

Near the center of the inner surface of the side plate 50, the fixing member 36 is supported so as to be rotatable about the support shaft 37.

A coil spring (38) is provided between the fixing member (36) and the pin (17), and the fixing member (36) is provided by the coil spring (38). An elastic force acts to always rotate in the direction of the caratridge insertion opening.

The lower lever 6 is. Two side plates (5). (5) is rotatably supported about the support pins 39 and 30, and is always supported by the tension spring 21 in the downward direction, i.e. in the direction of the row position of the support pins 39 and 39. Elastic force is working. The rotatable lever 6 and the cartridge holder 7 disposed therein are rotatably connected by connecting pins 40 and 40, and the ends of these pins 40 and 40 are formed on both side plates ( 5) A roller 41 inserted into the holes 23 and 23 formed in (5) and in contact with the cam portion 20 of the cam plate 15 is provided in one of the pins 40. The front end of the lock lever 6 is engaged with the end 42 provided on the upper end of the fixing member 36, and the lock lever 6 and the end 42 of the fixing member 36 are engaged. The low lever 6 is prevented from rotating so that the cartridge holder 7 is held at the eject position. The cam plate 15 is provided with a release pin 43 which abuts against the fixing member 36 to release the engagement between the low lever 6 and the end 42. A projection 44 for returning the end portion 42 to the engaged state is formed integrally with the cam plate 15.

As shown in FIG. 7, a pair of guide pins 45 and 45 are provided on the outer surface of the side plate 5 at an appropriate distance, and the emergency eject levers are provided on the guide pins 45 and 45. (46) is fitted to slide. At the tip of the emergency eject lever 46, a pressing part 47 capable of coming into contact with the upper end of the lock lever 29 is provided, and at the rear end of the emergency eject lever 46, a bent part 48 is provided. This bent portion 48 faces a hole (not shown) of the front panel. A return spring 49 is provided between the emergency eject lever 46 and the side plate 5, and the emergency eject lever 46 always has an elastic force acting on the cartridge insertion port side by the return spring 49.

Next, the operation until the magnetic disk cartridge 8 is mounted in the recording / reproducing apparatus will be described.

As described above, FIG. 1, FIG. 3 and FIG. 5 show a transition state in which the magnetic disk cartridge 8 is inserted.

In this state, as shown in FIG. 3, the cam plate 15 is pulled toward the cartridge insertion opening side by the force of the tension spring 21, so that the upper flat portion 20a of the cam plate 15 is formed on the side plate 5. It faces the hole 23. Therefore, the roller 41 is in a state of being raised on the upper flat portion 20a, whereby the low lever 6 cannot rotate downward, and the cartridge holder 7 is in a standby position, that is, It is held at the eject position.

Since the electromagnetic solenoid 33 is not excited, the fixed lever 29 is stopped at the position where it is in contact with the cam plate 15 by the elastic force of the coil spring 35. As described above, the cam plate 15 is pulled toward the cartridge insertion port side, and thus is separated from the engaging portion 31 of the locking pin 18 and the fixing lever 29.

The front end of the low lever 6 is raised above the end portion 42 of the fixing member 36 so as to be prevented from rotating downward.

Again, as shown in FIG. 1, the distal end of the eject lever 14 faces the disc insertion port side.

When the magnetic disk cartridge 8 is inserted into the cartridge holder 7 in such a state, first of all, the tip of the eject lever 14 abuts against the edge of the shutter 13.

Then, with the insertion of the magnetic disk cartridge, the eject lever 14 is rotated clockwise in FIG. 1, which opens the shutter 13 and exposes the magnetic head insert 9.

During the insertion of the magnetic disk cartridge 8, the tip thereof comes into contact with the abutting portion 26 of the rotary lever 24, and the cam plate 15 is opposed to the elasticity of the tension spring 21 by the insertion force. To the fixed lever 29 side. Then, the locking pin 18 of the locking pin 15 of the cam plate 15 pushes up the catching portion 31 of the fixing lever 29 to be engaged with the locking pin 18 as shown in FIG. Part 31 is engaged. By this engagement, the cam plate 15 is fixed not to return to the original position. The inclined portion 20b faces the hole 23 of the side plate 5 due to the movement of the cam plate 15, and in the position where the cam plate 15 is fixed, the vicinity of the lower end of the inclined portion 20b faces the hole 23. do. Since the tip of the lock lever 6 is still supported by the end 42 of the fixing member 36 at the time when the cam plate 15 is fixed. The lower lever 6 does not rotate downward, and therefore the cartridge holder 70 connected to the lower lever 6 via the connecting pin 40 is held at the initial ejection position.

Therefore, the roller 41 is in the upper part of the hole 23, and is in the state separated from the inclination part 20b.

After the cam plate 15 is fixed as described above, the magnetic disk cartridge 8 is inserted again. As shown in FIG. 4, the release pin 43 abuts against the fixing member 36 to rotate the fixing member 36.

By this rotation, the front end of the lock lever 6 is displaced from the end 42, and the lock lever 6 is lowered in the lower direction about the support pin 39 by the tension force of the tension spring 21 (the lock direction). Rotate to With this rotation, the connecting pin 40 and the roller 41 are lowered in the holes 23, so that the cartridge holder 7 is also lowered to the disc rotation shaft 2, so that the magnetic disc cartridge 8 is predetermined. In position, it prepares for recording and playback operations.

In the state where the mounting of the magnetic disk cartridge 8 is completed in this manner, as shown in FIG. 4, the roller 41 is positioned at the lower flat portion 20c.

Next, the ejection operation of the magnetic disk cartridge 8 will be described.

When the electromagnetic solenoid 33 is excited by an eject signal from a control unit (not shown), the armature 34 is sucked against the elastic force of the coil spring 35, whereby the fixing lever 29 It rotates counterclockwise in FIG. 4, and the length alignment of the engagement pin 18 and the engagement part 31 is peeled off. At this time, the cam plate 15 is pulled toward the cartridge insertion port side by the restoring force of the tension spring 21 and returned.

The roller 41 moves up on the inclined portion 20b by the movement of the cam plate 15. Finally, as shown in FIG. 3, the upper flat portion 20a is raised. As a result, the lock lever 6 rotates in an upward direction against the elastic force of the tension spring 21. The cartridge holder 7, which is re-engaged with the end 42 of the fixing member 36, which is pivoted back by the coil spring 38 and the projection 44, and receives the magnetic disk cartridge 8, Pushed up to the eject position. When the magnetic disc cartridge 8 is pushed up to the eject position. Rotational return force of the eject lever (14). The magnetic disk cartridge 8 is discharged from the cartridge holder 7 by the movement of the rotation lever 24 in the direction of the cartridge insertion hole along the retraction of the cam plate 15.

When the electromagnetic solenoid 33 does not operate even when the electromagnetic solenoid 33 fails or an eject signal is applied for some reason, the magnetic eject cartridge 46 is discharged by the emergency eject lever 46.

That is, in FIG. 7, when the bent portion 48 of the emergency eject lever 46 is pushed in the direction of the arrow against the elasticity of the restoring spring 49, the pressing portion 47 fits the upper end of the fixing lever 29. When it touches and rotates it, it becomes in the same state as the electromagnetic solenoid 33 is operated, and this causes the alignment of the engaging pin 18 and the alignment part 31 to be disengaged, and the magnetic disk cartridge 8 is discharged. .

Since the present invention is constructed as described above, the structure is simpler, cheaper, and smaller and thinner than the conventional example described above.

In addition, even if an abnormality occurs during operation, by moving the fixing lever connected to the electronic solenoid, the engagement between the cam plate and the fixing lever is released, and the disc cartridge can be ejected, which makes handling easier and improves reliability. .

Claims (2)

A cartridge holder (7) for accommodating the disc cartridge and moving between the eject position and the lock position, a low lever (6) acting on the elastic force in the low position and the low cartridge (6); A movable fixing member for aligning and holding the cartridge holder at the eject position, a cam plate 15 which is elastically applied toward the disc insertion port side and horizontally moves against the disc cartridge, and an engaging portion of the cam plate ( 31) and an electronic solenoid (33) which is engaged with the ejecting part, and is excited by an eject signal to move the fixing lever to release the engagement with the cam plate. A release lever 14 having an eject lever 14 for accumulating discharge force by the inserted disc cartridge, and disengaging the low lever and the fixing member from the cam plate to move the cartridge holder to the lower position; And a cam portion for returning the cartridge holder from the position to the eject position by way of the lock lever. 2. The recording and reproducing apparatus for a disc cartridge as claimed in claim 1, wherein the cam portion of the cam plate comprises an upper flat portion (20a), an inclined portion (20b), and a lower flat portion (20c).