KR910006662B1 - Automatic ejecting apparatus of magnetic carrier - Google Patents

Abstract

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Description

Magnetic recording medium automatic ejection device used in magnetic recording medium driving device

1 is a plan view of a magnetic recording medium automatic ejection apparatus according to a first embodiment of the present invention.

FIG. 2 is a plan view of the magnetic disk drive apparatus including the magnetic recording medium ejection apparatus of FIG.

3 is a side view of the magnetic disk driving apparatus of FIG.

4 is a plan view of a magnetic recording medium automatic ejection apparatus according to a second embodiment of the present invention.

FIG. 5 is an enlarged plan view of the switching holding mechanism provided in the magnetic recording medium automatic ejection apparatus of FIG.

FIG. 6 is an enlarged plan view similar to FIG. 5 showing the respective positions of the components of the switch holding mechanism of FIG. 5 when switched on. FIG.

* Explanation of symbols for main parts of the drawings

10; Chassis 11; Magnetic disc cassette

12; Spindle motor 13; Chuck

15; Magnetic head 20; Coil spring

26; Cassette carrier 35; Pinion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording medium automatic ejection apparatus, and more particularly, to a magnetic recording medium automatic ejection apparatus used in a main magnetic disk driving apparatus.

BACKGROUND OF THE INVENTION Magnetic disc automatic ejection apparatuses used in magnetic disc driving apparatuses are known to date.

For example, in one known magnetic disk automatic ejection device, the rotational force of the spindle motor is transmitted through the reducer to drive the apparatus to automatically eject the magnetic disk cassette.

In this known magnetic disk automatic ejection device, in a normal operation state other than the magnetic disk automatic ejection device, the spindle motor is disconnected from the magnetic disk automatic ejection device, so that the rotational force of the spindle motor is applied to the magnetic disk automatic ejection device. It should not be delivered.

In order to disconnect the spindle motor from the magnetic disk automatic ejecting device, a gearing gear is provided in the motive force transmission unit interconnecting the spindle motor and the magnetic disk automatic ejecting device. The rotational force of the spindle motor is transmitted to the magnetic disk auto ejecting device through the reduction gear device.

These gears may enter or exit the operating position by means of a separate drive means other than the spindle motor.

In addition to the spindle motor, if a separate drive means is provided for interlocking the spindle motor and the magnetic disk automatic ejection device, it is difficult to construct the magnetic disk automatic ejection device in a simplified form, and the production cost of the magnetic disk automatic ejection device is reduced. Increases.

Therefore, the main object of the present invention is to provide a magnetic recording medium automatic discharge device which uses the power of the spindle motor and does not require any additional driving means in discharging the magnetic recording medium, and has a small configuration and low production cost. will be.

It is still another object of the present invention to provide an automatic magnetic recording medium ejection apparatus capable of restraining the magnetic recording medium ejection operation when the magnetic recording medium ejection instruction signal is not issued, thereby reliably preventing the occurrence of an unlimited magnetic recording medium ejection operation. Is to provide.

Referring to the first embodiment of the present invention, the magnetic recording medium automatic ejecting device includes a cassette carrier for carrying the magnetic recording medium cassette inserted through the inlet of the magnetic recording medium driving device, and moves the cassette carrier vertically. It has a discharge plate for discharging, and has a pressure locking means for pressing the magnetic recording medium cassette in the discharge direction and locking the discharge plate in the standby position, rotating the magnetic recording medium in one direction for the lead / write operation and discharge plate Drive means for moving the discharge plate to the standby position only when the driving means is reversely rotated to move the discharge plate to the standby position, and the pressure locking means causes the discharge plate to move to the standby position. It is equipped with a gear device for locking and pressurizing the magnetic recording medium cassette and discharging the discharge plate. And a switch for detecting a state in which the operation of the driving means for moving the teeth is completed, and a sliding member interlocked with the gear device for controlling the switch.

In the second embodiment of the present invention, the automatic magnetic recording medium ejecting device includes a cassette carrier for carrying the magnetic recording medium cassette inserted through the inlet of the magnetic recording medium driving device, and the cassette carrier moves vertically. And pressurizing means for pressing the magnetic recording medium cassette in the discharge direction, locking the discharge plate to the standby position, and rotating the magnetic recording medium in one direction for read / write operations. A driving means for moving to a position, wherein the rotational force of the driving means is transmitted to the discharge plate only when the driving means is reversely rotated to move the discharge plate to the standby position, and the pressure locking means to lock the discharge plate to the standby position. And a gear unit for pressurizing and ejecting the magnetic recording medium cassette, and moving the discharge plate to the standby position. A switch for detecting whether the operation of the driving means for driving is completed, a sliding member interlocked with a gear device for controlling the switch, and a magnetic recording medium cassette inserted into the magnetic recording medium driving device. And a switch for holding the switch to operate in synchronization with the magnetic recording medium cassette storing operation of the discharge plate to keep the switch on.

In the first embodiment of the present invention, while the driving means drives the magnetic recording medium in the normal direction for the read / write operation, the gear device is separated so that the driving force of the driving means is transmitted only to the magnetic recording medium.

On the other hand, when the driving means is reversed, the gear unit is engaged to move the discharge plate and the cassette carrier by the driving means, and the magnetic recording medium cassette is separated from the driving means together with the cassette carrier, and the pressure locking means is activated. The magnetic recording medium cassette is discharged through the inlet by the reverse power of the pressing means. When the magnetic recording medium driving device carrying the magnetic recording medium is disconnected from the power source and activated again, or when the power supply is stopped in other ways and the magnetic recording medium driving device starts to operate, the second embodiment of the present invention The magnetic recording medium automatic ejection apparatus according to the example operates somewhat differently from that of Embodiment 1 of the present invention.

In this case, even if the gear device is detached from the drive means and the sliding member is released so that the position can be turned off accordingly, the holding means interlocked with the discharge plate keeps the switch in the ON position, thereby keeping the gear in the magnetic recording medium drive device. The placed magnetic recording medium cassette is not discharged upon such restarting.

The above and other objects and features of the present invention will become more apparent by the following detailed description with reference to the accompanying drawings.

Example 1

The magnetic recording medium automatic ejection apparatus according to Embodiment 1 of the present invention will be described as a state applied to the magnetic disk driving apparatus with reference to FIGS.

The components of the magnetic disk drive device are installed on the box chassis 10. The magnetic disk cassette 11 is inserted into the magnetic disk driving apparatus through the inlet on the left side of the magnetic disk driving apparatus as shown in FIG.

The spindle motor 12 is located at the left center of the chassis 10. A chuck 13 and a drive pin 14 are provided on the spindle motor 12.

Referring to FIG. 2, the magnetic head carriage 16 installed together with the magnetic head 15 is provided at the right center of the chassis 10, and is driven by the feed motor 17a by the step motor 17. It is possible to do lateral movement.

The shutter opening lever 18 is rotatably supported by the pivot pin 19 at the lower right portion of the chassis 10 and is pushed counterclockwise by the coil spring 20.

When the magnetic disk cassette 11 is inserted into the magnetic disk driving apparatus, the shutter 21 is opened by the shutter opening lever 18. The magnetic disk cassette 11 is seated on the chuck 13, and the magnetic disk accommodated in the magnetic disk cassette 11 is rotated by the driving pin 14 to read information from the magnetic disk or to read the magnetic disk. Record the information in the

As shown in FIG. 1, four pillars 22 are vertically fixed on the chassis 10, which are four slots 23A formed on a generally U-shaped discharge plate 23. As shown in FIG. In combination with the two, it is for guiding the discharge plate 23 when the transverse movement.

As can be seen in FIGS. 1 to 3, the discharge plate 23 is continuously thrust to the left by the coil spring 24.

Two inclined guide grooves 25 are formed on both side walls of the discharge plate 23 as shown in FIG.

The cassette carrier 26 for carrying the magnetic disc cassette 11 is located on the discharge plate 23 (FIG. 3), and the pins 27 protruding from the shaft wall of the cassette carrier 26 are discharge plate 23. Each of the inclined guide grooves 25 are coupled.

The pin 28 protruding from the lower surface of the right end of the discharge plate 23 is engaged with the concave portion 30 formed in the latch lever 29.

The latch lever 29 is rotatably supported by the rotational motion pin 19 supporting the shutter opening lever 18 in a rotatable manner, and at the same time, thrust is counterclockwise by the coil spring 31. Receive.

As shown in FIG. 1, a U-shaped protrusion 32 is formed on the upper surface of the free terminal of the latch lever 29. As shown in FIG.

When the magnetic disk cassette 11 is inserted into the magnetic disk drive device, the front surface of the magnetic disk cassette 11 collides with the protrusion 32 to rotate the latch lever 29 clockwise, thereby discharging the discharge plate 23. Is released from the latch lever 29 and moved to the left by the coil spring 24,

As the discharge plate 23 moves to the left, since the pins attached to the cassette carrier 27 move along the inclined groove 25, the cassette carrier 26 carrying the magnetic disc cassette 11 is lowered. Is placed on the pillar 22.

Referring now to Figure 1, it will be described the features of the present invention.

When discharging the magnetic disk cassette 11 from the magnetic disk drive device, a gear device is provided to transmit the rotational force of the spindle motor 12 to the discharge plate 23.

Gear device is gear 33, gear 34, pinion 35, small gear 36, gear 42, pinion 43, gear 44, pinion 45, gear 46, pinion And a gear 48 and the like. The gear 33 integrally formed with the chuck 13 engages with the gear 34, which has the pinion 35 coaxially fixed to its lower surface.

Pinion 35 engages small gear 36.

The shaft 37 of the small gear 36 is accommodated in the slot 40 formed in the frame 38 and the bracket 39, so that the small gear 36 has the pinion 35 within a predetermined angle range. Can rotate around

The bracket 39 is pressurized by the spring 41 and serves to maintain the coupling state between the small gear 36 and the pinion 35.

In addition, the small gear 36 is engaged with the gear 42, the gear 42 is fixed to the pinion 43 coaxially, and engages with the gear 44.

The pinion 45 fixedly coaxially attached to the lower surface of the gear 44 engages with the gear 46.

The pinion 47 fixedly coaxially attached to the gear 46 engages with the gear 48. The roller 49 is rotatably supported on the upper surface of the gear 48 such that as the gear 48 rotates, the roller 49 rotates around the axis of rotation of the gear 48.

When driving the magnetic disk in the magnetic disk cassette 11, if the gear 33 is rotated by the spindle motor 12 in the normal direction (clockwise), the small gear 36 is surrounded by the pinion 35. Is rotated counterclockwise and is disengaged from the gear 42.

When the gear 33 rotates in the reverse direction (counterclockwise), the small gear 36 is coupled to the gear 42 to transmit the rotational force of the spindle motor 12 to the gear 42.

This small gear 36 serves as a clutch member and a power transmission member.

These gears and pinions are rotatably supported on the frame 38 to form a reduction gear that transmits the rotational force of the spindle 12 at a reduced speed,

The roller 49 provided on the gear 48 is in engagement with the protrusion of the sliding member 50. The sliding member 50 is thrust to the right by the coil spring 52,

Another projection 53 formed at the right end of the sliding member 50 presses the actuator 55 of the switch 54.

The switch 54 is processed in the bracket 56, and the actuator 55 is thrust to the left by the internal spring of the switch 54.

The protruding portion 58 is formed on the discharge plate 23 and is located opposite to the protruding portion 51 of the sliding member 50.

When the gear 48 rotates, the roller 49 provided on the gear 48 pushes the protrusions 51 and 58.

In operation, when the magnetic disk cassette 11 is inserted into the magnetic disk drive device from the left as seen in the drawing, the shutter 21 is moved in the direction of the arrow by the shutter opening lever 18 (FIG. 2), At the same time, the front surface of the magnetic disk cassette 11 is engaged with the latch lever 29 to rotate the latch lever 29 clockwise.

As a result, the pin 28 provided in the free terminal of the discharge plate 23 is released from the latch lever 29, and accordingly the discharge plate 23 moves to the left side by the tension of the coil spring 24, and thus the cassette. The pins 27 fixed to the carrier 26 are moved downward into the guide width 25 formed on the side wall of the discharge plate.

In this way, the cassette carrier 26 carrying the magnetic disc cassette 11 is lowered and seated on the four pillars 22,

Simultaneously with the downward movement of the magnetic disk cassette 11, the upper and lower magnetic heads 15 (FIG. 2) are respectively formed with the upper and lower surfaces of the magnetic disk contained in the magnetic disk cassette 11 through an open window. Contact.

In this way, the magnetic disc cassette 11 is seated in position to enable information recording or information reading.

Soon the spindle motor 12 is activated to rotate the magnetic disk contained in the magnetic disk cassette 11 clockwise, and the magnetic heads 15 read information from or write information to the magnetic disk.

The stepping motor 17 moves the magnetic head carriage 16 installed with the magnetic heads 15 through the feed screw 17A to move the magnetic heads 15 relative to the track of the magnetic disk.

When the magnetic disk drive is stopped, the small gear 36 is disengaged from the gear 42, so that the magnetic disk drive can be restarted without a problem.

When discharging the magnetic disk cassette 11 from the magnetic disk drive, a controller (not shown) issues a signal to reverse the spindle motor 12.

Soon the gear 33 rotates in the reverse direction, causing the small gear 36 to rotate around the pinion 35 via the gear 34 and the pinion 35, and the small gear 36 engages with the gear 42. By this, the rotational force of the spindle motor 12 is transmitted to the gear 48 at a reduced speed through the gears and pinions 42 to 47 to rotate the gear 48 counterclockwise.

In other words, the roller 49 provided in the gear 48 rotates counterclockwise about the axis of rotation of the gear 48, thereby pushing the protrusion 58 of the discharge plate 23, thereby discharging the discharge plate 23. 23 moves to the right.

As the discharge plate 23 moves to the right, the pin 27 provided on the cassette carrier 26 moves upward along the groove 25 formed in the side wall of the discharge plate 23 (FIG. 3). Then, the cassette carrier 26 containing the magnetic disc cassette 11 is raised.

When the discharge plate 23 reaches the right end position, the concave portion 30 of the latch lever 29, which is pushed counterclockwise, is engaged with the pin 28 of the discharge plate 28 to discharge plate 28. Is kept in the state shown in FIG.

At the same time, the magnetic disk cassette 11 ascended is automatically discharged from the holding disk drive by the protrusion 32 of the clasp lever 29 that is elastically thrust in the counterclockwise direction by the coil spring 31.

On the other hand, the spindle motor 12 is reversed again to keep rotating the gear 48 counterclockwise, so that the roller 49 pushes the protrusion 51 of the sliding member 50 to the left. Move it.

As a result, the protrusion 53 formed at the right end of the sliding member 50 releases the actuator 55 of the switch 54, and soon the switch 54 generates a signal to reverse the operation of the spindle motor 12. Decide

If the roller 49 stops at a position on the right side of the center of the gear 48, when the next magnetic disk cassette is inserted into the magnetic disk drive, the movement operation in the right direction of the discharge plate 23 is carried out. 49), the roller 49 must be stopped at the left limit position.

Therefore, after confirming that the roller 49 has reached a position where it will not interfere with the discharge plate 23 when the discharge plate 23 moves to the left, the switch 54 issues a signal to stop the spindle motor 12. Let's do it.

When the magnetic disk drive is connected to a power source to perform the next magnetic drive operation, the small gear 36 is disengaged from the gear 42 and causes the spindle motor 12 to enter the magnetic disk in the magnetic disk cassette 11. Be ready to drive it.

In this state, since the pinions and the gears 42 to 48 can rotate freely, the sliding member 50 is moved to the right by the coil spring 52, whereby the roller 49 is the protrusion of the sliding member 50. 51) to the right.

In this way, when the magnetic disk drive is connected to the power source, the controller (not shown) executes a series of initial procedures to check the position of the roller 49 in relation to the state of the switch 54, and the magnetic disk drive device. Control to move the roller 49 to the left limit position and then separate the small difference wheel 36 from the gear 42.

Usually a magnetic disk cassette is not inserted into the magnetic disk drive unit during a series of initial procedures.

However, when the power supply is interrupted during operation of the magnetic disk drive device or the magnetic disk drive device is connected to the power source after the magnetic disk cassette 11 is inserted into the magnetic disk drive device, the following may occur.

That is, in this case, when the magnetic disk drive device is connected to a power source, or when power is supplied after the power supply is interrupted, the magnetic disk cassette 11 drives the magnetic disk during the initial procedure, depending on the position of the roller 49. It is possible to discharge from the device. Therefore, it is necessary to make further improvements to prevent such undesirable operation.

In the magnetic recording medium automatic ejection apparatus according to the second embodiment of the present invention, further improvements have been made to prevent such undesirable operation.

Second Embodiment

A magnetic recording medium automatic ejection apparatus according to Embodiment 2 of the present invention is shown in FIGS.

In Figs. 1 to 6, referring to Figs. 1 to 3, corresponding or similar parts among the above-described part elements are indicated by the same reference numerals.

Since Embodiment 2 is substantially the same as Embodiment 1 in its configuration and function, this Embodiment 2 will only be described with respect to the center portion and the function of Embodiment 1. The U-shaped portion near the right end of the discharge plate 23 is bent to form a finger 59, and the shoulder 60 formed on the sliding member 50 is located opposite the finger 59.

When the magnetic disc cassette 11 is inserted into the magnetic disc drive device to cause the discharge plate 23 to move leftward from the position shown in FIG. 5, the finger 59 is shown as shown in FIG. Combined with 60 moves the sliding member 50 to the left.

As a result, the protrusion 53 formed in the sliding member 50 is separated from the actuator 55 of the switch 54 to leave the switch 54 in the ON state, while the magnetic disk cassette 11 is a magnetic disk. It is inserted into the drive.

Therefore, the present magnetic recording medium automatic discharge device is operated to perform the discharge operation only by the discharge signal.

The actuator of the switch 54 can be operated so that the switch 54 can be left in the ON state by the discharge plate 23.

As will be evident from the above description, depending on the spindle motor and the direction of rotation, the gear mechanism engages or disengages.

When the spindle motor rotates in the normal direction to drive the magnetic disk, the gear device is detached so that the rotational force is not transmitted to the magnetic recording medium automatic ejection device.

On the contrary, when the spindle motor rotates in the reverse direction to eject the magnetic disk cassette, the gear device is engaged, and transmits the rotational force of the spindle motor to the automatic recording medium automatic ejection device.

In this way, the automatic recording medium automatic ejection device uses the spindle motor as a power source, and thus does not require any additional manual means for attaching the magnetic recording medium automatic ejection device to the magnetic recording medium driving device. The recording medium driving apparatus can be made compact with reduced cost.

In addition, while the magnetic disc cassette is in the magnetic disc drive unit, a switch for determining the timing at which the spindle motor is reversed to perform the magnetic disc cassette ejection operation is set to the ON position to suppress the reverse rotation of the spindle motor. Therefore, the magnetic disk cassette is not ejected even in the following cases.

That is, even after the magnetic disk cassette is inserted into the magnetic disk drive unit and the magnetic disk drive unit is connected to a power source, or the power supply is supplied again after the power supply to the magnetic disk drive unit is stopped during the read / write operation, the magnetic disk cassette is discharged. It doesn't work.

Although the present invention has been described in detail in light of the preferred embodiments above, many changes and modifications to the present invention will be possible.

Therefore, without departing from the spirit and scope of the present invention. It will be understood by those skilled in the art that the present invention may be practiced in a manner different from that described above.

Claims (6)

A magnetic recording medium automatic ejection device for use in combination with a magnetic recording medium driving device, comprising: a cassette carrier (26) for carrying a magnetic recording medium cassette inserted at an inlet formed in a magnetic recording medium driving device to be placed in a predetermined operating position (26) ); A discharge plate 23 for moving the cassette carrier 26 in the vertical direction; Pressurizing locking to press the magnetic recording medium cassette in the discharge direction and lock the discharge plate 23 to the standby position so that the magnetic discharge medium cassette can be held in the standby position before the magnetic recording medium cassette is inserted into the magnetic recording medium drive device. With means; A drive means for rotating the magnetic recording medium contained in the magnetic recording medium cassette inserted into the magnetic recording medium driving device to move the discharge plate 23 to the standby position; Only when the driving means is reversely rotated, the rotational force of the driving means is transmitted to the discharge plate 23 to move the discharge plate 23 to the standby position, and the pressure locking means causes the discharge plate 23 to move to the standby position. A gear device for locking the magnetic record carrier to pressurize the magnetic recording medium cassette; A switch for detecting whether the operation of the drive means for moving the discharge plate 23 to the standby position is completed; And a sliding member (50) interlocked with the gear device for controlling the switch. 2. The method according to claim 1, wherein the drive means withdraws from the adjacent gear to separate the gear group from the drive means when the drive means is operated in the normal direction to perform the read / write operation, and the gear when the drive means operates in the reverse direction. A magnetic recording medium automatic ejection apparatus for a magnetic recording medium driving apparatus, characterized in that said gear unit is provided with a small difference (36) coupled to an adjacent gear to connect a group to said driving means. 2. The apparatus of claim 1, wherein the driving means is a spindle motor (12) of the magnetic recording medium driving apparatus. A magnetic recording medium automatic ejection device for use in combination with a magnetic recording medium driving device, comprising: a cassette carrier (26) for carrying a magnetic recording medium cassette inserted at an inlet formed in a magnetic recording medium driving device to be placed in a predetermined operating position (26) ); A discharge plate 23 for moving the cassette carrier 26 in the vertical direction; By pressing the magnetic recording medium cassette in the discharge direction and locking the discharge plate 23 to the standby position, the discharge plate 23 can be held in the standby position before the magnetic recording medium cassette is inserted into the magnetic recording medium drive device. A pressure locking means for retaining; A drive means for rotationally driving the magnetic recording medium contained in the magnetic recording medium cassette inserted into the magnetic recording medium driving device, and for moving the discharge plate 23 to the standby position; Only when the driving means is reversed, the power of the driving means is transferred to the discharge plate 23 to move the discharge plate 23 to the standby position, and the pressure locking means causes the discharge plate 23 to move to the standby position. A gear device which locks in the air and presses and ejects the small recording medium cassette; A switch for detecting whether the operation of the drive means for moving the discharge plate 23 to the standby position is completed; A sliding member (50) interlocked with the gear device for controlling the switch; And while the magnetic recording medium cassette is inserted into the magnetic recording medium driving apparatus, except for when the discharge command signal is given, the magnetic field of the discharge plate is held for the purpose of being kept in the switched ON state to suppress the discharge of the magnetic recording medium cassette. A magnetic recording medium automatic ejection device for use in a magnetic recording medium driving device, characterized by comprising a switching holding means operating in synchronization with a recording medium cassette storing operation. 5. The method according to claim 4, wherein the drive means withdraws from the adjacent gear to separate the gear group from the drive means when the drive means is operated in the normal direction so that the read / write operation can be performed. A magnetic recording medium automatic ejection apparatus for a magnetic recording medium driving apparatus, characterized in that said gear unit is provided with a small difference (36) coupled to an adjacent gear to connect a group to said driving means. 5. The apparatus of claim 4, wherein the driving means is a spindle motor (12) of the magnetic recording medium driving apparatus.

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