JP2557164Y2 - Floppy disk drive - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floppy disk drive, and more particularly to a magnetic head carriage vertical opening / closing device in which the lower carrier plate moves up and down smoothly.

[0002]

2. Description of the Related Art As shown in FIG. 8 of the accompanying drawings, a conventional 3.5-inch floppy disk drive has a disk holder 2 provided inside a chassis 1 and a part of an upper carriage arm 3 is provided in the disk holder 2. The upper magnetic head 4 and the lower magnetic head 5 are in a state of being expanded.

When the floppy disk 8 is inserted from the insertion opening 7 of the front panel 6, the slider 9 moves forward and the disk holder 2 descends. Accordingly, the carriage arm 3 locked to the rear end of the disk holder 2 rotates downward by the bias of the spring 10, and
The upper and lower magnetic heads 4 and 5 come into contact with both sides of the magnetic recording surface of the floppy disk 8 as shown in (1), and the floppy disk 2 is set in a readable / writable state.

On the other hand, the floppy disk 8
To take out the floppy disk, the eject button 11 of the front panel 6 is pushed in, the disk holder 2 is raised by the reverse operation, and the floppy disk 8 is ejected by returning to the state shown in FIG.

[0005]

In the conventional floppy disk drive, a part of the carriage arm 3 is locked to the disk holder 2. Therefore, in order to expand the carriage arm 3 with a sufficient clearance, the disk holder 2 needs to be opened. The distance of the up-and-down movement of 2 must be increased.
For this reason, the thickness of the chassis 1 has increased, and there has been a limit in reducing the thickness of the floppy disk drive.

Accordingly, there is a technical problem to be solved in order to reduce the vertical movement of the disk holder, to smoothly expand the carriage arm, and particularly to make the vertical movement of the lower carrier plate smooth. Because
The purpose of the present invention is to solve this problem.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and is intended for use with a floppy disk.
The disk holder provided in the disk drive
The part is pivotally attached to the left and right side plates of the chassis, and when ejecting
The disk holder is pivoted upward with the pivot portion as a fulcrum.
On the rear of the disk holder.
An upper carrier plate is pivotally mounted on one side, and
One end of the carrier plate is cut into the chassis side plate
To the disc holder and swing up and down in conjunction with the disc holder.
And the upper carrier
The tip of the rate is the carriage arm of the upper magnetic head.
The lower carrier plate is in contact with the lower surface
It is locked in the hole drilled in the side of the chassis and
The tip faces the upper surface of the carriage arm of the lower magnetic head.
And the lower carrier plate is ejected.
In a floppy disk drive device configured to move up and down in conjunction with a rider, an inclined portion that rises slowly upward from a front portion toward a rear portion is provided on the lower carrier plate. A floppy disk drive, wherein a rear end of the slider, which moves back and forth in conjunction with an eject button, is pressed against the upper surface of the lower carrier plate to press down the lower carrier plate. An apparatus is provided.

[0008]

[Function] Ejects floppy diskWhen it is
Disk holderIsRiseAndUpper carrier
The tip of the plate rotates upward and the key of the upper magnetic head is
Push the carriage arm upward, and the upper magnetic head
Separation from magnetic recording surface of floppy diskdoing.
or,When inserting the floppy disk,Disk holder
FallsAnd the upper carrier plateTip moves downward
The upper carriage armButDescend, top magnetic head
Abuts against the magnetic recording surface of the floppy disk.

[0009] On the other hand, push the eject button front
When removing the oppey disc, press the eject button
The connected slider moves backward. At this time,
The rear end of the slider presses the oblique portion provided on the lower carrier plate to press the tip of the lower carrier plate downward, and the carrier plate pushes the carriage arm of the lower magnetic head downward. Thus, the lower magnetic head separates from the magnetic recording surface of the floppy disk.
When the slider moves forward when the floppy disk is inserted, the tip of the lower carrier plate rotates upward, the lower carriage arm rises, and the lower magnetic head comes into contact with the magnetic recording surface of the floppy disk. At this time, the inclined portion of the lower carrier plate is provided with an inclined portion which rises slowly upward from the front portion toward the rear portion, and the rear end portion of the slider is provided on the inclined portion. Since the slider slides into and out of contact, the operating force of the lower carrier plate by the slider is slow and small, and the feel of the eject is good.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIG.
This will be described in detail with reference to FIG. 1 and 2 show the inside of a 3.5-inch floppy disk drive.
A front panel 22 is provided on the front (left side in the figure) of the chassis 21.
, And an insertion opening 23 is formed in the front panel 22. A disk holder 24 is provided inside the chassis 21, and support shafts 25, 25 are provided on both sides of a rear end portion of the disk holder 24, and shaft holes 26, 26 formed in left and right sides of the chassis 21. The support shafts 25, 25 are fitted into the disk holders 24, and the disk holder 24 is formed so as to rotate up and down around the support shafts 25, 25. The support shaft 25 may be formed not only by fixing the pin but also by protruding the side surface of the disk holder 24 by protruding.

A cut-and-raised portion is provided at the periphery of the disk holder 24, and the floppy disk 2
When the disk 7 is inserted, the outer shape of the floppy disk 27 is locked. For example, as shown in FIG.
Cut-and-raised portions 28a, 28
a, a cut-and-raised portion 28b is protruded at the rear end of the disk holder, and cut-and-raised portions 28c, 28c are also protruded at the front of the chassis 21.

Instead of the cut-and-raised portions 28c, 28c, a leaf spring (not shown) which is inclined downward is provided on the lower inner wall of the insertion port 23 provided on the front panel, and the floppy disk 27 is provided. May be supported. A slider 29 is provided between the disk holder 24 and the chassis 21. The slider 29 is slidable in the front-rear direction in a horizontal state along the bottom surface and left and right side surfaces of the chassis 21 in conjunction with an eject button B protruding from the front surface of the front panel 22. Then, the cam grooves 30, 30 are opened, and the pins 31, 31 protruding from both sides of the front portion of the disk holder 24 are loosely inserted. The locking pieces 3 provided on both sides of the slider 29
2 and a locking piece 33 provided on the upper surface of the disk holder 24, a spring 34 is interposed to pull the slider 29 forward.
Is locked to lock forward movement.

Further, a carriage 35 of a magnetic head is provided at a rear portion of the chassis 21, and the carriage 35 is slid back and forth by a stepping motor 36.
A magnetic head 39 and a magnetic head 39 are attached to the distal ends of the upper carriage arm 37 and the lower carriage arm 38 which can move up and down.
Attach 40. A drive motor 41 drives the belt 42 to rotate the disk table 43.

As shown in FIGS. 3 and 4, on the side of the carriage 35, an upper carrier plate 44 and a lower carrier plate 45 are provided to face each other. Cut-and-raised pieces 46, 46 are provided on the upper surface of the rear end of the disc holder 24, and the upper carrier plate 44 is pivotally mounted by inserting pins 47 in the front-rear direction of the chassis 21. 48 formed in the side surface of the chassis 21
To the upper carrier plate,
b is brought into contact with the side of the upper carriage arm 37.
In the state shown in the figure, since the disk holder 24 is at the raised position, the distal end portion 44b of the upper carrier plate rotates upward and pushes the upper carriage arm 37 upward.

Further, one end 4 of the lower carrier plate 45
5a is locked in a hole 49 formed in the side surface of the chassis 21, and an oblique portion 50 is provided on the upper surface of the lower carrier plate 45, which rises slowly upward from the front to the rear.
Is provided. The lower carrier plate 45 is made of a spring material, and is urged to rotate upward with the locking portion of the hole 49 as a fulcrum. In the state shown in FIG. 3, the slider 29 is located at the position slid to the rear of the chassis 21, and the lower surface of the rear end 51 of the slider 29 presses the upper surface of the inclined portion 50 of the lower carrier plate 45. Therefore, the lower carrier plate 45 is pressed downward, and the distal end portion 45b of the lower carrier plate rotates downward to push down the lower carriage arm 38.

Here, when the floppy disk 27 shown in FIGS. 1 and 2 is inserted through the insertion opening 23 of the front panel 22, the rear end of the floppy disk 27 pushes down the shutter 52 to lower the disk holder 24. The right and left outer portions of the floppy disk 27 are guided by U-shaped cut-and-raised portions 28a provided on both left and right sides, and are accommodated in the disk holder 24. Further, the rear end portion of the floppy disk 27 presses the stopper arm 53 backward, the hook 54 of the slider 29 is released, and the slider 29 slides forward by the urging of the spring 34. The rear end is locked by the cut-and-raised portion 28b.

At this time, as shown in FIG. 5, the pin 31 in the cam groove 30 is pushed down, and the front portion of the disk holder 24 is rotated downward with the support shaft 25 as a fulcrum so that the horizontal state is obtained. Become. The outer portion of the floppy disk 27 is formed by the cut-and-raised portion 2 provided on the disk holder 24.
8a, 28a, 28b and the cut-and-raised portion 28c provided in the chassis 21 or, as described above, the cut-and-raised portion 2
Instead of 8 c, it is locked by a leaf spring provided on the lower inner wall of the insertion opening 23 formed in the front panel 22, is positioned at a predetermined position, and is mounted on the disk table 43.

As the disk holder 24 rotates downward, the leading end 44b of the upper carrier plate rotates downward, and the upper carriage arm 37 moves downward by the urging of a spring (symbol S in FIG. 1). Rotate. Also, the slider 29
As the slider slides forward, the rear end portion 51 of the slider 29 separates from the inclined portion 50 of the lower carrier plate 45. Since the lower carrier plate 45 is urged to rotate upward as described above, the pressing of the rear end 51 of the slider 29 is released,
The tip 45b of the lower carrier plate rotates upward. Then, the lower carriage arm 38 is rotated upward by the bias of a spring (not shown).

Thus, the upper magnetic head 39 and the lower magnetic head 40 come into contact with each other so as to be sandwiched from both sides of the magnetic recording surface of the floppy disk 27, and the floppy disk 27 is set in a readable / writable state. When ejecting the floppy disk 27, if the eject button B is pushed in and the slider 29 is slid backward, the disk holder 24 rotates upward and returns to the state shown in FIGS. Upper carriage arm 3
The upper and lower magnetic heads 39 and 40 are separated from both sides of the magnetic recording surface of the floppy disk 27 by expanding the carriage arm 7 and the lower carriage arm 38.

The present invention can be variously modified without departing from the spirit of the present invention, and it is natural that the present invention extends to the modified one.

[0021]

As described in detail in the above-described embodiment, the upper and lower carrier plates rotate, but in particular, the upper and lower carrier plates are gently moved upward from the front to the rear on the upper surface of the lower carrier plate. A raised inclined portion is provided, and the lower end surface of the slider is pressed against the inclined portion so that the lower carrier plate can be pushed down, so that the operating force of the lower carrier plate by the slider is also slow. As a result, the operation is small, and the feel of the ejection becomes good. Since the upper and lower carriage arms are opened and closed in conjunction with the rotation of the upper carrier plate, the vertical movement of the disk holder can be reduced. Therefore, the thickness of the chassis can be reduced, which contributes to the thinning of the floppy disk drive.

[Brief description of the drawings]

FIG. 1 is a plan view showing the inside of a floppy disk drive.

FIG. 2 is a longitudinal sectional side view of FIG.

FIG. 3 is a longitudinal sectional front view showing a state where upper and lower carrier plates are expanded.

FIG. 4 is a longitudinal sectional side view of FIG. 3;

FIG. 5 is a vertical sectional side view showing the inside of a state where a floppy disk is set.

FIG. 6 is a longitudinal sectional front view in a state where upper and lower carrier plates are closed.

FIG. 7 is a vertical sectional side view of FIG. 6;

FIG. 8 is a partially cutaway side view showing a state where a floppy disk is inserted into a conventional floppy disk drive.

FIG. 9 is a partially cutaway side view showing a state where the floppy disk is set inside.

[Explanation of symbols]

 Reference Signs List 21 Chassis 24 Disk holder 27 Floppy disk 29 Slider 35 Carriage 37, 38 Carriage arm 39, 40 Magnetic head 44 Upper carrier plate 45 Lower carrier plate 45a One end 45b Tip 50 Slanted portion 51 Slider rear end B Eject button

Claims (1)

(57) [Scope of request for utility model registration] 1. A floppy disk drive device.
The rear end of the disk holder is the left and right side plate of the chassis.
When ejected, the disc holder is
It is configured to be able to rotate upward with the attachment part as a fulcrum.
The upper carrier plate is located on one side of the rear upper surface of the disk holder.
A rate is pivoted and one of the upper carrier plates is
The end is locked into a hole drilled in the side plate of the chassis to
It is formed to swing up and down in conjunction with the holder
And the tip of the upper carrier plate is
Contact the lower surface of the carriage arm of
The carrier plate has one end opened in the side of the chassis.
With the lower magnetic head
Of the carriage arm, and the lower key
The carrier plate moves up and down in conjunction with the eject slider
In the floppy disk drive device configured as described above, an inclined portion which rises slowly upward from the front portion toward the rear portion is provided on the lower carrier plate, and the slider which moves back and forth in conjunction with the eject button is provided. A rear end portion of the lower carrier plate is pressed against the upper surface of the oblique portion of the lower carrier plate so that the lower carrier plate can be pushed down.