JPH01199359A - Automatic ejector - Google Patents

Abstract

PURPOSE:To allow a disk device to be small-sized and light and to reduce a cost by utilizing a head driving motor and a disk driving motor and ejecting a disk-shaped recording medium. CONSTITUTION:At the time of starting an ejecting, by utilizing a movement in an arrow (c) direction which is one direction of a head carrier 9 to move both heads 6 from an outer circumference position P1 to a position P2 of the most outer circumference, a lever 19 which is a trigger member is driven in one direction. At the time of completing the ejecting, by movement in an arrow c' direction which is the other direction of the head carrier 9 to move the both heads 6 from an inner circumference reference position P3 to a position P4 of the most inner circumference, the lever 19 is driven in the outer direction. Thus, a electromagnetic solenoid and a motor exclusive-use for an automatic ejector can be omitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an auto-eject device for a disc-shaped recording medium in a disc device for recording and reproducing a disc-shaped recording medium such as a floppy disk.

[Summary of the Invention] The present invention provides a disk drive motor to which a disk-shaped recording medium is attached and which rotates a disk table;
In a disk device fjjtVc equipped with a head drive motor that drives a reproducing head in a substantially radial direction of a disk-shaped recording medium via a head carrier, a trigger is applied using the output of the head drive motor to drive the disk. The output of the motor is used to drive the eject mechanism to eject the disk-shaped recording medium, and when the ejection is finished 1c, the output of the head drive motor is used to switch the eject mechanism to a non-operating state. The structure is simple and simple.

An auto-eject device is provided in which the switching operation between ejection start and end is reliable.

[Conventional technology]

As a known example of an auto-eject device.

In this known example, an electromagnetic solenoid is used to trigger the eject mechanism, and the output of a disk drive motor is used to drive the eject mechanism.

Note that some of this type of auto-eject device uses a motor exclusively for the trigger.

However, using an electromagnetic solenoid or motor exclusively for the auto-eject device as in these prior art techniques has the problem of hindering miniaturization, weight reduction, and cost reduction of the disk device.

Therefore, f! A (% Application No. 62-222561) was previously filed by the applicant of this invention.

This prior invention includes an eject drive body that is rotationally driven by a disk drive motor, and a head carrier that is moved by the head drive motor from within the reciprocating range for recording and reproduction to outside the range. The eject mechanism includes a trigger member driven by the trigger member, and an eject mechanism that is started by the trigger member and drives an eject actuating member of the disk-shaped recording medium by an eject driver.

Therefore, according to this prior invention, it is possible to eject a disk-shaped recording medium by applying a trigger using the output of the head drive motor and driving the eject mechanism using the output of the disk drive motor. The electromagnetic solenoid and motor dedicated to the auto-eject device can be omitted.

[Problem to be Solved by the Invention] However, in this prior invention, when the eject starts flying, the driven gear is engaged by the trigger member with the driving gear that constitutes the eject drive body, so that the driven gear is not connected to the driven gear 1 by the driving gear. and the eject operating member of the eject mechanism is driven by the driving force transmitted to the driven gear.

It is configured to perform eject operation. When the ejection is finished, the disk drive motor is stopped, and the return spring of the trigger member causes the driven gear to disengage from the drive gear, thereby releasing the drive of the eject operating member.

The eject mechanism was switched to a non-operating state.

Therefore, if the force of the return spring of the trigger member can be increased, then at the end of ejection.

The driven gear can be reliably separated from the driving gear, and the eject mechanism can be reliably switched to a non-operating state. However, if the force of the return spring of the trigger member is increased, a large load will be applied to the head drive motor when the head carrier drives the trigger member to start ejecting, so the head drive motor must be made larger. (Naru) Increasing the size of the head drive motor hinders the miniaturization, weight reduction, and cost reduction of disk devices, so in this type of auto-eject device, the force of the return spring of the trigger member is increased. I can't.

Therefore, in the tapered invention, since the force of the return spring of the trigger member was small, there was a risk that the driven gear would not be separated from the driving gear at the end of ejection due to the gears biting together.

This invention has been made to solve the above-mentioned problems, and it is possible to reliably switch the eject mechanism to a non-operating state at the end of ejection even if the return spring of the trigger member remains small. The present invention aims to provide an auto-eject device that can perform the following steps.

[Means for solving problems]

The present invention relates to the above-mentioned disk device.

The eject drive body rotationally driven by the disk drive motor and the head carrier are moved by the head drive motor from within a reciprocating range for recording and reproduction to outside that range in one direction or the other,
a trigger member that is driven in one direction or the other by the head carrier; and a trigger member that is engaged at the start of the ejection by movement of the trigger member in one direction, and that is engaged with the eject driver by movement of the trigger member in the other direction. an eject driven body that is separated from the eject driven body; the eject driven body is engaged with the eject driving body and is rotationally driven by the eject driving body, thereby driving the ejecting member of the disc-shaped recording medium; and an eject mechanism that releases the drive of the eject actuating member when the body is separated from the eject drive body.

[For production]

The auto-eject device of the present invention uses the output of the head drive motor to drive the trigger member in one direction to engage the eject driven body with the eject drive body at the start of ejection, and when the ejection ends, the head drive motor is activated. The eject driven body is separated from the eject driving body by driving the trigger member in the other direction using the protrusion.

〔Example〕

An embodiment of an auto-eject device to which the present invention is applied will be described below with reference to the drawings.

First, as shown by a dashed line in the first place, a disk-shaped recording medium (hereinafter simply referred to as a disk) 1, such as a 70-tip disk, is rotatably housed in a disk cartridge 2.

A disk device 4 for recording and reproducing this disk 1 horizontally inserts the disk 1 into a disk loading machine (not shown) using a disk cartridge 2 from the direction of arrow a, as shown in FIG. When the disk 1 is inserted right above the disk table 5, the disk cartridge 2 is vertically lowered to horizontally mount the disk 1 on the disk table 5.

By installing this disk, a pair of upper and lower recordings,
The reproducing head is inserted into the 6V disk cartridge 2 from above and below and brought into contact with both the upper and lower surfaces of the disk 1.

After this disk is installed, the disk drive motor 7
disc table 5' through the timing belt 81? : The disk is rotated in the direction indicated by the arrow in FIG. 1, and is rotated in the same direction within the disk IV disk cartridge 2.

At the same time, one head 6 is moved by the head carrier 9t, and the head drive motor 10 causes the disk 1 to move within a certain reciprocating range in the radial direction in the direction of arrow C6C' in FIG. The disk 1 moves forward and backward within the disk 1 to selectively record and reproduce information on both the upper and lower surfaces of the disk 1 using a single head 6.

Here, the lead screw 11rc, which is rotationally driven by the head drive motor 10, drives the needle 12 fixed to the head carrier 9 by screw feeding action, and the head carrier 9 is moved in the direction of the arrow c through the needle 12.
, shows a head drive mechanism that drives forward writing in the direction c'.

Next, an auto-eject device 16 for ejecting the disk 1 by the disk cartridge 2 in the direction of arrow a' in FIG. Gear 17' which is the eject drive body
& The head is rotated in the direction indicated by the arrow K, and the output of the head drive motor 10 is used to apply a trigger.

For example, both heads 6'+: From the outer circumference reference position (00 track) P1 of the disk 1 indicated by the dotted line on the first tuna to the outermost circumference position P3 of the disk 1, approximately 1 to 3 mm arrow C
The head carrier 9 is moved by the head drive motor 10 in the direction of the recording and reproducing work range J.
Move from inside to outside the range J in the direction of arrow C.

As a result of this movement of the head carrier 9 in the direction of the arrow C, as shown in FIG. By pressing the bottle 19a in the direction of arrow C, the lever 19 is driven to rotate about the fulcrum shaft 20 in the direction of arrow d.

Then, an elastic arm 19b integrally molded on the other end of this lever 19 suppresses the pin 22af at one end of the lever 22 made of synthetic resin molded product of the eject mechanism 21, and this lever 2
2 as the fulcrum shaft 251! : The gear 24, which is an eject follower and is rotatably attached to the lever 24, is brought into mesh with the gear 17, which is an eject driver, by rotating the lever 24 in the direction of the arrow e.

Then, the driving force of the gear 17, which is rotationally driven in the direction of the arrow by the output of the disk drive motor 7, is transferred to the gear 24.
The signal is transmitted to the cam gear 28, which is a synthetic resin molded product, through the gear train 25, and the cam gear 28 is driven one rotation in the direction of arrow f from the stop position shown in FIG. A cam 29 is provided integrally with this cam gear 28.
presses the protrusion 31 of the slide plate 30, which is the first eject operating member, as shown in FIG.
It is moved in the direction of arrow g against the tension coil spring 32 to the forward movement position shown in FIG. 2.

By moving the slide plate 30 in the direction of arrow g, the disk mounting mechanism is driven, and the disk cartridge 2 is vertically raised from the position shown in FIG. will be separated from the

As shown in the second figure, just before the slide plate 30 is moved to the forward position, the lever 33, which is a synthetic resin molded product that is the second eject actuating member, is moved by the tension coil spring 35 around the fulcrum shaft 34 as shown in the arrow. An eject bin 36 is integrally provided with the lever 33 and is driven to rotate in the direction of
The tear disk cartridge 2 is pushed out in the direction of arrow a'.

Disc 1 is ejected in the same direction.

Then, as shown in the 1m2 diagram, the locked piece 30a of the slide plate 30 relatively enters the locking recess 37 of the lever 33 rotated in the direction of the arrow, and the slide reaches the forward movement position shown in Figure 2. When the plate 30 is slightly returned in the direction of the arrow g by the tension coil spring 32 as shown in FIG.
locked by a.

Then, as shown in FIG. 3, the arrow "f" of the cam gear 28
When one rotation in the direction is completed, one end 58a of the switch lever 38 is pressed by the cam 29, and the switch lever 38 is rotated in the direction of the arrow 1 about the fulcrum shaft 39 against the tension coil spring 40. , the detection switch 41 is turned on at the other end 386.

Then, when this detection switch 41 is turned on.

The disk drive motor 7 is stopped, the gear 17 is stopped, and the head drive motor 10 is driven to reverse rotation at high speed, so that the head carrier 9 is moved in the direction of arrow C at high speed C (fast forward).

As a result, one head 6 is moved by the head carrier 9,
Position P of the outermost circumference of disk 1! Recorded from.

After passing through the forward movement range J for regeneration,
The inner basic position of the disk 1 indicated by the AIM line (for example, 79
Track) From Ps to the innermost position P4 of disk 1
It is moved at a high speed in the direction of arrow C to a position where it has been moved approximately 1 to 3 mm.

As shown in FIG. 4, one head 6 is connected to the disk 1.
When the head carrier 9 is moved to the innermost position P4, another protruding driving portion 18b provided on the head carrier 9 presses the pin 19a'ir at one end of the lever 19, which is a trigger member, in the direction of arrow C. , this lever 19 is rotated about the fulcrum shaft 20 in the direction of arrow d. Then, the non-elastic arm 19c at the other end of this lever 19 engages the eject mechanism 2.
1 lever 22 nohin 22 a@valve is pressed, and this lever 22 is forcibly rotated in the direction of arrow e' about the fulcrum shaft 23, and the gear 24, which is the eject driven body, is connected to the gear 17, which is the eject driving body. to be forcibly removed from the

With the above steps, the series of auto-neji-ect operations is completed. Then, in order to drive both heads 6 from the innermost circumference position P4 of the disk 1 to the inner circumference reference position P3 or the outer circumference reference position Pl of the disk 1, the head drive motor 10
The head carrier 9 is moved again in the direction of arrow C', and then the head drive motor 10 is also stopped.

In addition, in order to shorten the above auto-eject time,
When the eject command signal is issued, the servo of the disk drive motor 7 is removed and the disk drive motor 7'
4 is set to runaway state C at high speed [gllE, drive], and the gear 17, which is the eject Jll moving body, is driven to rotate at high speed in the direction indicated by the arrow.

According to this auto-eject device, at the end of ejection, the output 'lk of the head drive motor 10 is used to forcibly separate the gear 24, which is the eject driven body, from the gear 17, which is the eject driving body. There is no need to intentionally provide a return spring to the lever 19, which is a trigger member. However, in this embodiment, as shown in FIG. 1, the lever 19 is urged to rotate in the direction of the arrow by a very weak tension coil spring 43 whose sole purpose is to bring the lever 19 into contact with the stopper 42 and position it. This tension coil spring 43 is the drive IB of the middle head rear 9.
18a presses the pin 19a of the lever 19 in the direction of the arrow C, and there is almost no load on the head drive motor 10 when the lever l5l is rotated in one direction of the arrow.

In addition, in the embodiment described above, the trigger member is moved by using the movement of the head carrier 9 in the direction of the arrow C, which is one direction, to move the single head 6 from the outer circumferential reference position P to the outermost circumferential position P3 at the time of starting the ejection. The lever 19 is driven in one direction, the arrow e direction, and the head carrier 9 is moved in the other direction, the arrow C direction, to move the single head 6 from the inner reference position Ps to the innermost position P4 at the end of ejection. The movement of the lever 19Y is utilized to drive the lever 19Y in the other direction, the direction of the arrow e. However, on the contrary, the lever 19y is moved by moving the head carrier 9 in the direction of the arrow C! - It is also possible to drive the lever 19 in the direction of the arrow e and use the movement of the head carrier 9 in the direction of the arrow C to drive the lever 19 in the direction of the arrow e.

By the way, initially, when the disc cartridge 2 is horizontally inserted into the disc loading machine from the direction of the arrow a for the fourth reason, the eject bin 36 is pressed in the direction of the arrow a by the disc cartridge 2.

The lever 33 is rotated in the direction of the arrow from the slide plate lock position shown in FIG. 4 to the unlocked position shown in FIG. 1 against the tension coil spring 35. Due to this.

The lock at the working position of the slide plate 30 is released, and the slide plate 30 is moved in the direction of arrow g from the forward movement position ρ in FIG. 4 to the forward movement position in FIG. 1 by the tension coil spring 52. , a vertical lowering of the disk cartridge 2 takes place. Then, the lever 33 that has been rotated to the first unlocked position is brought into contact with the side surface of the locked piece 30a of the slide plate 30 by its locking piece 33-a, and this lever 33
Rotation in the direction of the arrow by the tension coil spring 35 is restricted. Note that the slide plate 30 is provided with a push button 30b for manually operated ejection.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments (one effective modification can be made based on the technical idea of the invention).

〔Effect of the invention〕

As described above, the auto-eject device of the present invention effectively utilizes the head drive motor and disk drive motor that are absolutely necessary in a disk device to eject a disk-shaped recording medium. There is no central mechanism using a 1sua solenoid or motor (,
By omitting these electromagnetic solenoids and motors, it is possible to reduce the size, bulk, and cost of the disk device.

Moreover, especially, according to the auto-eject device of the present invention, the output of the head drive motor is used to forcibly separate the eject follower from the eject driver even when ejecting is completed, so the structure is simple. However, the switching operation for starting and ending ejecting can always be performed reliably, and reliability can be significantly improved.

[Brief explanation of the drawing]

FIGS. 1 to 4 are plan views showing the operating sequence of the embodiment of the present invention. In addition, in the code used on the first page. 1...Disc-shaped recording medium 4...
...Disk device 5...Disk table 6...
...Head 7...Disk sliding motor 9...
...Head carrier 10 ...Head drive motor 16 ...Auto eject device 17 ...Gear (eject drive body) 19
...... Lever C trigger member) 21...
Mountain/eject mechanism 24...Gear (eject driven body) 30.
. . . Slide plate (first eject operating member) 33 . . . Lever (second eject operating member).

Claims (1)

[Claims] A disk equipped with a disk drive motor that rotationally drives a disk table on which a disk-shaped recording medium is mounted, and a head drive motor that drives a recording and reproducing head back and forth in a substantially radial direction of the disk-shaped recording medium via a head carrier. In the apparatus, the eject drive body rotationally driven by the disk drive motor and the head carrier move in one direction or the other outside the reciprocating range for recording and reproduction by the head drive motor. a trigger member that is driven in one direction or the other by the head carrier; and a trigger member that is engaged with the eject drive body by moving in one direction; An eject driven body is separated from the eject drive body by the movement of the trigger member in the other direction, and the eject driven body is engaged with the eject drive body and rotationally driven by the eject drive body. and an eject mechanism for driving the ejecting member of the disc-shaped recording medium and releasing the driving of the ejecting member when the ejecting driven member is separated from the ejecting member. An auto-eject device characterized by: