JPH0461063A - Recording or reproducing device - Google Patents

Abstract

PURPOSE:To firmly lock a carriage under the state of ejecting a recording medium at low cost without consuming power by providing a head moving mechanism, a recording medium ejecting mechanism and a lock mechanism for locking the head moving mechanism. CONSTITUTION:Information is recorded or reproduced by moving the carriage 42 mounted with a recording or reproducing head 46 to the recording medium which is attachably and detachably loaded. Then, the device possesses the medium ejecting mechanism for ejecting the recording medium. In this case, the device is provided with the carriage locking mechanism for firmly lock (by a lock plate) 30 the carriage 42 at the time of ejecting the medium in mechanically interlocking with an operation of the medium ejecting mechanism and releasing the lock 30 at the time of loading the medium. By this method, the carriage 42 can firmly be locked at the time of ejecting the recording medium in an extremely simple way and at low cost, and yet without increasing power consumption.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording or reproducing device, and in particular, the present invention relates to a recording or reproducing device, and in particular to a removably mounted recording medium, a carriage equipped with a recording or reproducing head is moved to record information. The present invention relates to a recording or reproducing apparatus that performs recording or reproducing, and has a medium ejecting mechanism that ejects a recording medium.

[Conventional technology]

An example of this type of device is a floppy disk drive M (hereinafter referred to as FDD) that magnetically records or reproduces information on a floppy disk, which is a flexible rotating magnetic recording medium. In other words, in an FDD, by moving a carriage carrying a magnetic head, the magnetic head is moved along the radius of the floppy disk, and is brought into sliding contact with any recording track on the floppy disk to perform recording and reproduction. There is. Further, in an FDD, a floppy disk is removably mounted, and a disk ejection mechanism is usually provided for ejecting the floppy disk from the FDD by manually operating an eject button. In many such FDDs, the carriage of the magnetic head is moved by a stepping motor, but recently a configuration in which the carriage is driven by a linear voice coil motor has been adopted. In this case, a drive coil portion of a linear voice coil motor is coupled to the carriage, and when the drive coil portion is moved by the drive of the linear voice coil motor, the carriage is moved accordingly.

[Problem to be solved by the invention]

By the way, the FD using the above linear voice coil motor
In D, when the FDD is not driven and the linear voice coil motor is not energized, the drive coil of the linear voice coil motor is in a free state, and the carriage coupled to it is in a freely movable state. There is.

In other words, the carriage of this FDD is movable during transportation or carrying around. Therefore, if an external impact is applied to the FDD during transportation or carrying, the carriage moves and collides with a stopper member that restricts the limit of movement, which may damage the carriage or components on the carriage.

For this reason, in such FDDs, a method is adopted in which the carriage is immovably locked by a driving means such as a solenoid, but in this case, the cost increases due to the provision of the driving means, and the power consumption of the driving means increases. FD
There is a problem in that the power consumption of the entire D becomes large.

This is not limited to the above-mentioned FDD, but also applies to devices that record or reproduce information by moving a carriage equipped with a recording or reproducing head, in which the carriage is movable when not driven, that is, with the recording medium ejected. This is common to all types of recording or reproducing devices.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording or reproducing apparatus of the above type with a configuration that can be implemented at low cost and does not consume electric power, so that when the recording or reproducing apparatus is not driven, that is, when the recording medium is ejected,
The purpose is to be able to lock the carriage immovably.

(Problems to be Solved by the Invention) In order to solve the above-mentioned problems, the present invention includes a head moving mechanism that supports a recording and/or reproducing head so as to be movable in the radial direction of a recording medium, and a head moving mechanism that is installed in a device main body. a recording medium ejecting mechanism that ejects the recording medium outside the apparatus main body; and a locking mechanism that mechanically interlocks with the recording medium ejecting mechanism and locks the head moving mechanism when the recording medium is ejected. The present invention provides a recording or reproducing device characterized by the following.

[Effect]

According to the above structure, the carriage lock mechanism locks and unlocks the carriage by mechanically interlocking with the operation of the manually operated medium ejection mechanism, and requires no driving source and consumes no power. do not.

〔Example〕

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

FIG. 1, FIG. 2, and FIG. 3 are FDs according to embodiments of the present invention.
1 is a plan view of the lower part of the FDD, FIG. 2 is a diagram of the carriage lock state, and FIG. FIG. 2 is a side view of essential parts involved in raising and lowering a cassette guide that slidably holds a disk cassette.

First, the structure around the carriage will be explained. The reference numeral 1 in FIG. 1 is a base that supports the entire FDD. An opening 1a is formed in the center of the base I, and a spindle hub 5, which is a disk holding portion of a spindle motor that rotationally drives a disk (not shown), faces inside this opening 1a. A carriage 42 for transporting the magnetic head is provided on the base 1 on the back side of the spindle hub 5. The carriage 42 is mounted on guide shafts 43, 44 fixed on the base l.
It is provided so as to be slidable in the direction. A magnetic head 46 is provided on the tip of the main body of the carriage 42 for recording or reproducing information on the lower surface of a disk (not shown). Further, an arm 45 is provided in a cantilevered manner on the main body of the carriage 42, and a lower end of the arm 45 (not shown) facing the head 46 records or reproduces data on the upper surface of the disk. A magnetic head is provided for performing this. Further, a rack portion 42a consisting of a plurality of protruding portions each having a semicircular tip portion is protruded from the tip portion of the right side edge in the figure of the main body of the carriage 42.

On the other hand, a linear voice coil motor (hereinafter referred to as "motor") 40 is provided on the base 1 near the right side of the carriage 42 in the drawing.
It is attached to the rear of the right edge of the main body.

By driving the motor 40, the drive coil section 41 is moved in the A and B directions, and the carriage 42 is accordingly moved and run in the A and B directions, and the magnetic head 46 and a magnetic head (not shown) are transported. be done. The transport path of the magnetic head is along the radius of the disk (not shown), and the carriage 4
2, the magnetic head is moved to an arbitrary track position on the disk, and comes into sliding contact with the recording track to magnetically record or reproduce information.

Next, a structure related to disc ejection and locking of the carriage 42 will be explained. A front panel 2 is fixed to the front end of the base 1. A disk insertion hole (not shown) is formed in the front panel 2, and a disk cassette containing a disk is inserted into the FD through this disk insertion hole.
It is designed to be inserted into D.

A cassette guide 19, only a portion of which is shown by broken lines in FIG. 3, is arranged behind the disk insertion hole. The cassette guide 19 slidably guides the disk cassette to the mounting position and holds it there. The cassette kite 9 is movable up and down, and is biased downward by a spring (not shown). The rear end and the center of both sides of the cassette guide 19 are marked with 2 in FIG.
A roller indicated by 0 is provided. Roller 20 is FDD
It is slidably fitted into a vertically continuous groove 21a formed in a support member 21 fixed on the base 1 of the
This allows the cassette guide 19 to be guided up and down.

On the other hand, in the lower part of the FDD shown in FIG. 1, a slide plate 4, which is an operation driving member of the disk ejection mechanism, is provided facing a cassette guide 19. An eject button 3, which is a manual operation member for ejecting a disc cassette, is coupled to the end of the slide plate 4 on the front panel 2 side, and is loosely fitted into the front panel 2.

The slide plate 4 is manually operated via the eject button 3.

The slide plate 4 has a notch for avoiding the spindle hub 5, and is generally U-shaped as a whole, and has elongated holes 4a formed at five locations.

Then, by slidably fitting the positioning pin 6.6 for positioning the disk cassette l installed in the base l and the slide plate guide pins 7.7 and 8 into these long holes 4a, the slide plate 4 is provided movably in the directions of arrows A and B. Note that the A1B direction is the direction of insertion and ejection of the disk cassette, respectively. The slide plate 4 is urged in the direction B by a spring 9.

In addition, side plates 4c are provided on the left and right edges of the slide plate 4.
4. c is formed by bending. As shown in FIG. 3, an inclined long groove 4e is formed in a portion of the side plates 4c, 4c corresponding to the roller 20 of the cassette guide 19. A roller 20 is slidably fitted into this long groove 4e. By moving the slide plate 4 in the direction A by manual operation of the eject button 3, the roller 20 is pushed up along the groove 21a as shown by arrow U via the long groove 4e, and the cassette guide 19 is pushed up. ing.

On the other hand, in order to lock the slide plate 4 and lock the lock plate 30 after the cassette ejection operation, which will be described later, an L-shaped hole 4 is provided in the left end of the slide plate 4 in FIG.
b is formed, and a locking lever 10 is provided on the base 1 near the base 1.

The locking lever 10 is rotatably provided about the bin 11 as a fulcrum, and is biased clockwise by a spring (not shown) as shown by an arrow in FIG. A bottle 12 is attached to the lower surface of the tip of one arm of the locking lever 10, which is formed in an L-shape.
is implanted so as to engage with the hole 4b, and a bottle 13 is implanted on the upper surface of the tip of the other arm. The bottle 13 comes into contact with and is pressed against a cassette (not shown) that is inserted when the cassette is installed.

On the other hand, as will be described later, when the cassette is ejected, the carriage 42
In order to immovably lock the lock plate 30, on the right side in FIG. 1, a lock plate 30 having a rack 30b at one end is guided by the guide portion 1a of the base 1 so as to be movable in directions C and D in the figure. Further, a boss portion 30a protrudes from the lock plate 30, and is guided by an elongated hole portion 4d provided in the slide plate 4. Note that the elongated hole portion 4d of the slide plate 4 has a predetermined angle. As a result, the slide plate 4 of the lock plate 30 moves in the A and B directions, and the elongated hole portion 4d also moves in the A and B directions, so that the lock plate 30 moves in the C and D directions. In addition, the carriage 42
A rack portion 42a is provided as shown in the figure.

Next, the operations of the disk ejection mechanism and carriage lock mechanism described above when ejecting a disk and when mounting a disk will be explained.

In FIG. 1, the state in which each part is indicated by a solid line indicates a state in which a disk (not shown) is attached to the FDD.

The slide plate 4 is in a state of being slid in the direction B to the illustrated position by the biasing force of the spring 9. The pin 12 of the locking lever 10 is engaged with the side edge of the long portion of the hole 4b along the A and B directions. The cassette guide 19 holding the cassette is pushed down by a spring (not shown) so that the roller 20 is positioned at the lower end of the long groove 4e, as shown in FIG. A cassette (not shown) is engaged with a positioning pin 6.

On the other hand, the lock plate 30 is held in the position shown in FIG. Movement is not locked.

In this state, the disk is rotated by a spindle motor (not shown) and the carriage 4 is driven by the motor 40.
By the movement of 2, recording and reproduction are performed as described above.

When the disk is ejected from this state, the eject button 3 is pressed in the A direction, and the slide plate 4 is slid in six directions against the biasing force of the spring 9.

As the slide plate 4 slides in six directions, the roller 20 moves into the long groove 4e as shown by the arrow U in FIG.
, and the cassette guide 19 holding the cassette is pushed up. Then, the cassette and the positioning pin 6 are disengaged, the cassette is unlocked, and the cassette is pushed in the direction B by a pressing lever biased by a spring (not shown) and ejected.

On the other hand, as the slide plate 4 moves in the A direction, the elongated hole 4d of the slide plate 4 also moves in the A direction,
The lock plate 30 includes a boss portion 30a and a guide portion 1a of the base I.
It moves in the C direction. The second example shows this state.
In this figure, the rack portion 30b of the lock plate 30 engages with the rack portion 42a of the carriage 42.

Therefore, when the lock plate 30 is in the state shown in FIG.
The slide plate 4 is locked by the locking lever 10,
The lock plate 30 locks the carriage 42, and the carriage 42 is immovably locked.

The position of the carriage 42 in the ASB direction when locked is as follows:
The carriage 42 and the lock plate 30 each have a rack 4.
2a and 30b are provided, the carriage 42 can be locked at any position.

Also, the cassette has been ejected as described above. When the eject button 3 is released at this point, the slide plate 4 attempts to move in the direction B due to the tensile force of the spring 9, but the edge of the bent portion of the hole 4b abuts against the pin 12 and is locked.

On the other hand, when installing the cassette from this state, the cassette is
When the cassette is inserted into the FDD in the direction shown in FIG. It is rotated counterclockwise from the position shown by the solid line. Then, the pin 12 is pulled out from the bent part on the right side of the hole, and the locking by the pin 12 is released, and the slide plate 4 is moved in the direction of arrow B by the tension of the spring 9.
It is moved to the position shown in the figure. The long groove 4e of the slide plate 4 shown in FIG.
is pushed down to the illustrated position located at the lower end of the long groove 4e. Then, a disk (not shown) is engaged with the positioning pin 6, locked, and mounted.

On the other hand, as the slide plate 4 moves in the B direction, the elongated hole 4d of the slide plate 4 into which the host portion 30a of the lock plate 30 is fitted also moves to the position shown in FIG. Along with this, the lock plate 30 separates from the carriage 42, and the carriage 42 becomes movable in the A and B directions again. In this manner, the carriage 42 is unlocked as the cassette is mounted.

As described above, according to this embodiment, the lock mechanism constituted by the lock plate 30 in conjunction with the cassette ejection operation allows
Since the carriage 42 is immovably locked, by leaving it in this state when transporting or carrying the FDD, the FD
Even if an impact is applied to D, the carriage 42 does not move, and this damage can be prevented.

Moreover, the carriage lock mechanism of this embodiment is operated mechanically in conjunction with the operation of the manually operated cassette ejection mechanism as described above, that is, it is operated manually to perform locking and unlocking. No driving source is required, no power is consumed, and the structure can be constructed at low cost.

It goes without saying that the above-described carriage lock mechanism can be applied not only to FDDs but also to other recording or reproducing devices that record or reproduce information by moving a carriage equipped with a recording or reproducing head. be.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, there is provided an apparatus for recording or reproducing information by moving a carriage on which a recording or reproducing head is mounted on a removably mounted recording medium. In a recording or reproducing apparatus having a medium ejecting mechanism for ejecting a medium, the carriage is mechanically operated in conjunction with the operation of the medium ejecting mechanism to immovably lock the carriage when ejecting the medium, and locks the carriage when loading the medium. The structure is equipped with a carriage lock mechanism that releases the lock, so it is extremely simple and inexpensive to implement, and the structure does not increase power consumption.The carriage can be locked immovably when the recording medium is ejected, and the recording or playback device can be locked. The carriage and its surrounding structure can be protected from shocks applied to the device during transportation, carrying, etc., and the excellent effect of improving the impact resistance and durability of the device can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the lower part of the FDD to explain the structure and operation of the carriage area, disk ejection mechanism, and carriage lock mechanism of the FDD according to the embodiment of the present invention, Fig. 2 is a carriage lock state diagram, and Fig. 3 is the same FDD. FIG. 3 is a partially cutaway side view showing the structure of the main parts involved in lifting and lowering the cassette. 1...Base 2...Front panel 3...Eject button 4...Slide plate 4d...Elongated hole 6...Positioning pin 9...Spring 10...Latching lever 30 -Lock plate 30a...Boss 30b...Rack section 40...Linear voice coil motor 41...Drive coil section 42...Gear ridge 42a...Rack section 46...Magnetic head

Claims (1)

[Scope of Claims] A head moving mechanism that supports a recording and/or reproducing head so that it can move in the radial direction of a recording medium, and a recording medium ejecting mechanism that discharges the recording medium mounted inside the apparatus main body to the outside of the apparatus main body. and a locking mechanism that mechanically interlocks with the recording medium ejecting mechanism and locks the head moving mechanism when the recording medium is ejected.