JPH09120614A - Floppy disc drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a floppy disc drive which can deal with a plurality of types of floppy disc cartridge having different size. SOLUTION: A cartridge holder 23 guides the opposite side faces of a first disc cartridge in the inserting direction thereof when hold the first disc cartridge when it is inserted through positioning means 50A, 50B. The cartridge holder 23 guides a second disc cartridge when it is inserted and holds the second disc cartridge while urging. This structure realizes a floppy disc drive in which a plurality of types of floppy disc cartridge having different size can be positioned and dealt with.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. TECHNICAL FIELD OF THE INVENTION Conventional Technology (FIG. 9) Problem to be Solved by the Invention (FIG. 10) Means for Solving the Problem Embodiment of the Invention (1) Overall Configuration (FIGS. 1 to 3) (2) ) Structure of Cartridge Holder (FIGS. 4 and 5) (3) Operation and Effect of Embodiment (4) Other Embodiment (FIGS. 6 to 8) Effect of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floppy disk device, for example, a large-capacity floppy disk cartridge (hereinafter referred to as a large-capacity FD cartridge) and a 3.5-inch floppy disk cartridge (hereinafter,
This is suitable for application to a floppy disk device capable of supporting any of 3.5 inch FD cartridges).

[0003]

2. Description of the Related Art Conventionally, there have been 3.5-inch FD cartridges and 5.25-inch or 8-inch flexible disks as disk-shaped recording media. Of these, 3.5-inch FD cartridges have been widely used in recent years from the viewpoint of strength and dust resistance. ing. Actually as shown in Figure 9, 3.5 inch FD
The cartridge 1 includes a magnetic disk 3 having a diameter of 85.8 [mm] (hereinafter, simply referred to as a disk) 3 rotatably housed inside a case 2 composed of first and second case halves 2A and 2B. Has been formed.

In this case, a metal center hub 4 is fixed to the center of the disk 2 coaxially with the disk 2, and at the center of the second case half 2B forming the back side of the case 2. A circular opening 2BX is provided so that the center hub 4 can be exposed. This makes this
In the 3.5-inch FD cartridge 1, the center hub 4 is used as a clue to freely rotate the disk 3 inside the case 2.

On the other hand, a U-shaped shutter 5 is attached to the upper end of the case 2 so as to be openable and closable. In this case, the shutter 5 is urged in the closing direction indicated by the arrow a by a spring (not shown) arranged inside the case 2, and thus, in normal times, the first and second case halves 2A and 2B are An opening (not shown) provided at the center of the upper end of each of the first and second case halves 2A and 2B by the respective first or second lids 5A and 5B provided so as to face each other. , These will be referred to as disk exposure openings hereinafter), respectively.

The first and second lid portions 5 of the shutter 5 are also provided.
Apertures 5AX and 5BX are provided at predetermined positions facing each other at the ends of A and 5B in the direction of the arrow a. Thus, by sliding the shutter 5 in the direction opposite to the arrow a, First and second lids 5 of
A part of the disk 3 inside the case 2 is partially inserted into the case 2 through the openings 5AX and 5BX of A and 5B and the corresponding disk exposing openings of the first or second case halves 2A and 2B. It can be exposed on the front side and the back side.

As a result, in the 3.5-inch FD cartridge, the first and second case halves 2A are normally set by the first and second lids 5A and 5B of the shutter 5.
While preventing dust and the like from entering the inside of the case 2 through the disk exposing openings of 2 and 2B, the shutter 5 is opened to expose a part of the disk 3 inside the case 2 so that the disk 3 is exposed to the inside of the case 2 during use. Information can be recorded or reproduced from the disk 3.

[0008]

By the way, in recent years, it has been desired to increase the storage capacity of a recording medium with the advancement of information technology in society. Under these circumstances, 85.8
Larger than disk 3 with a diameter of [mm] (for example, diameter 94 [m
m]) Use the above-mentioned 3.5-inch FD cartridge 1
By storing in a case like this, a recording medium with excellent strength and dust resistance and a storage capacity larger than that of a 3.5-inch FD cartridge (hereinafter referred to as a large-capacity floppy disk (FD) cartridge) is realized. It is considered that

Further, in this case, when commercializing such a large-capacity FD cartridge, as shown in, for example, FIGS. 10A and 10B, the outer size of the case 11 of the large-capacity FD cartridge 10 is changed to the front end thereof. Width W ₁ other than part 11A
And the length (length) from the front edge to the rear edge of the case 11 W ₂
It is proposed to select the same as Case 2 of 3.5-inch FD Cartridge 1 except for.

This is because the outer size of the case 11 of the cartridge FD large capacity FD cartridge 10 is selected in this way, so that the 3.5 inch FD cartridge 1 and the large capacity FD can be obtained.
This is because it is possible to easily construct a drive (Floppy disk device) that can support any of the cartridges 10, and at present, the width W ₁ of the large capacity FD cartridge 10 other than the front end 11A of the case 11 is 90%. ~ 101.6
About [mm] (90 [m for 3.5-inch FD Cartridge 1
m]) and the length L from the center of the center hub 12 of the large capacity FD cartridge 10 to the rear end of the case 11
Is slightly larger than the 3.5-inch FD cartridge 1 so that the vertical width W ₂ of the case 11 is 93 mm or more (3.5
Inch FD Cartridge 1 has been proposed to be 93 [mm]).

However, in practice, the existing floppy disk device is large because the inner size of the cartridge holder for loading the floppy disk is selected according to the outer size of the 3.5-inch FD cartridge 1. The capacitive FD cartridge 10 cannot be used. Therefore large capacity FD
It is conceivable to newly construct a floppy disk device compatible with the cartridge 10, but it is not realistic because the cost is high on either side of the manufacturer and the user.

Therefore, a floppy disk device capable of accommodating both the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10, that is, the flots compatible with the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10. Pydisk devices are desired.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose a floppy disk device capable of accommodating a plurality of types of floppy disk cartridges having different sizes.

[0014]

SUMMARY OF THE INVENTION In the present invention for solving the above problems, there is provided a first disk cartridge having a first disk-shaped recording medium having a first diameter rotatably housed therein, or a first disk cartridge. A second disk-shaped recording medium having a diameter of 2 is rotatably housed therein, and a second disk-shaped recording medium having a second diameter is housed rotatably therein.
A cartridge discrigue in which at least a lateral width of the rear end portion is larger than that of the first disc cartridge, and the second disc cartridge is selectively inserted to mount the first or second disc cartridge on the spindle and the disc table. In a floppy disk device having a holder, when the first disk cartridge is inserted, the cartridge holder guides both side surfaces of the first disk cartridge in the insertion direction of the first disk cartridge. Hold and when the second disk cartridge is inserted,
Positioning means is provided for guiding the second disk cartridge and for biasing and holding the second disk cartridge.

Therefore, in this Flotpie disk device,
The cartridge holder guides and holds both side surfaces of the first disk cartridge in the insertion direction of the first disk cartridge when the first disk cartridge is inserted by the positioning means. When the second disk cartridge is inserted, the second disk cartridge is guided and the second disk cartridge is biased and held, so that a plurality of types having different sizes can be obtained. The floppy disc cartridge can be held in place by the positioning means.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) Overall Structure In FIGS. 1 to 3, reference numeral 20 denotes a floppy disk device to which the present invention is applied as a whole, and is applied to both the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 described above. It is designed to be easy to use. That is, in the floppy disk device 20,
Large-capacity FD cartridge 1 on the front of the front panel 21
Cartridge entrance / exit 2 whose width is selected to correspond to 0
1A is provided, and the large-capacity FD cartridge 10 or the cartridge storage area 23A of the cartridge holder 23 in the main body 22 is provided via the cartridge inlet / outlet 21A.
A 3.5-inch FD cartridge 1 (hereinafter collectively referred to as a floppy disc cartridge 24) can be inserted.

In this case, in the cartridge holder 23, the cartridge 25 is arranged on the chassis 25 forming the outer shell of the main body 22 via the slide plate 26, and is provided by a centering mechanism (not shown) provided in the cartridge holding area 23A. Then, the inserted flotted disk cartridge 24 is always kept in the cartridge storage area 23 regardless of its type.
It can be positioned and held at the center position in A.

On the other hand, the slide plate 26 is provided with first to fourth slide guides 27A to 27D provided on the chassis 25 so that the first to fourth slide guides 27A to 27D.
It is held so as to be freely slidable in a forward direction indicated by an arrow b and a backward direction opposite thereto within a predetermined range regulated by D. In this case, the slide 26 plate is attached to the shutter opening / closing and locking member 28 arranged at the right rear portion of the chassis 25 in a state where the floppy disk disc cartridge 24 is not inserted into the cartridge retaining area 23A of the cartridge holder 23. Therefore, it is locked in the vicinity of the slide limit position in the rearward direction, and in this state, the cartridge holder 23 is attached to the cartridge inlet / outlet 21
It is adapted to be supported at a first height position corresponding to A.

On the other hand, in the slide plate 26, the floppy disk court cartridge 24 is inserted in the cartridge holding area 23A of the cartridge holder 23, and the shutter opening / closing and the locking member is performed by the floppy disk court cartridge 24. When the lock is released by pushing the shutter opening / closing arm 28A of 28 in the backward direction,
The elastic force of the coil spring 29 spanned between the rear end of the slide plate 26 and the front end of the chassis 25 causes the elastic force of the coil spring 29 to slide forward, and along with this, the cartridge holder 23 is gradually moved. When the cart slide holder 23 is lowered, and after that, when the slide limit position in the forward direction is reached,
Is supported at a second height position corresponding to the loading position of the floppy disc cartridge 24.

At this time, in the shutter opening / closing and locking member 28, the floppy disk cartridge cartridge 24 is used.
The shutter opening / closing arm 28A moves the tip of the shutter opening / closing arm 28A along with the insertion of the shutter 2 of the floppy disk deck cartridge 24.
4A is rotated in the direction of arrow c about the shaft portion 28B on one end side in a state of being brought into contact with the right end portion in FIG. 1, the shutter opening / closing arm 28A causes the shutter of the floppy disk cart cartridge 24 to move. It is designed to open 24A. Therefore, a disk drive mechanism 30 having a spindle motor is disposed at a predetermined position on the front side of the chassis 25, and a rear side of the chassis 25 is supported by a slide mechanism 31 so as to be movable in the front-rear direction and flying. A cartridge 32 is provided with a head 32 and thus located at the second height position.
While rotating the disk in the floppy disk cartridge 24 held by the disk drive mechanism 30 by the disk drive mechanism 30, information can be recorded on the disk by the flying head 32 or information can be reproduced from the disk. It is done like this.

Actually, in the slide plate 26,
First and second left side holder holders 26A and 26B projecting upward are formed at the front and rear portions of the left end of the same, and the same first and second left holder holding portions 26A and 26B are formed at the front and rear of the right end, respectively. A right holder holder 2 (not shown) is formed. Further, the first and second left side holder holders 26A and 26B of the slide plate 26 and the first and second right side holder holders are respectively provided with notches 26AX and 26BX having a predetermined size in the rearward direction. The cartridge holder 23 is formed with the notches 2 of these slide plates 26.
The first to fourth engaging protrusions 23B to 23E corresponding to 6AX and 26BX are attached to the slide plate 26 so as to be fitted therein.

At this time, the cartridge holder 23 has a first gap between the first and second engaging protrusions 23B and 23C at the left end.
And a second guide 23F is formed between the third and fourth engaging protrusions 23D and 23E at the right end.
The protrusion 23G for the elevating guide is formed to project. In addition, these first or second lifting guide protrusions 23F, 23G
On the inner side surface of the left side wall and the inner side surface of the right side wall of the chassis 25, which face each other, respectively, the corresponding first or second elevation guide projections 23F, 23G of the cartridge holder 23 are provided.
Guide projections 25A to guide only in the vertical direction,
25B are provided so that the cartridge holder 23 can be moved only along the guide protrusions 25A and 25B in the vertical direction.

As a result, when the slide plate 26 is located in the vicinity of the slide limit position in the rearward direction,
The front end surfaces of the first and second left holder holding portions 26A, 26B on the front side and the front end surfaces of the first and second right holder holding portions on the front side respectively correspond to the first to the first of the cartridge holders 23. The cartridge holder 23 can be supported at the first height position by supporting the third or fourth engaging projections 23B to 23E, respectively, while the cartridge carriage holder 23 is positioned near the slide limit position in the forward direction. 23
By supporting the first to fourth engaging protrusions 23B to 23E on the lower end surfaces of the corresponding notches 26AX and 26BX, the cartridge holder 23 can be supported at the second height position. There is.

On the other hand, in the shutter opening / closing and locking member 28, the shaft portion 28B is rotatably supported by a shaft (not shown) erected in the chassis 26 so that the shaft portion 28B can be freely centered on the shaft portion 28B as described above. When the slide plate 26 is rotatable, the lock protrusion 26 is formed downward at the rear end of the slide plate 26 in the vicinity of the slide limit position in the rear direction.
By hooking an arcuate projection holding portion 28C on C, the slide plate 26 can be locked near the slide limit position in the rearward direction.

In this case, the length of the projection holding portion 28C is such that the slide plate 26 is located near the slide limit position in the forward direction.
Further, when the shutter opening / closing and shutter opening / closing arm 28A of the locking member 28 opens the shutter 24A of the floppy disk cartridge 24 in the cartridge holder 28, the tip surface of the projection holding portion 28C is for locking the slide plate 28. It is selected so that it contacts the left end of the protrusion 26C. As a result, in the shutter opening / closing and locking member 28, the slide plate 26 is positioned in the vicinity of the slide limit position in the forward direction, so that the cartridge holder 2
3 is positioned at the second height position, the shutter opening / closing arm 28A is securely connected to the shutter 24A of the floppy disk deck cartridge 24 in the cartridge holder 23.
Is designed to be held open.

The shutter opening / closing and locking member 28 is urged in the direction indicated by the arrow d by a spring 33 fitted to the shaft portion. As a result, when the slide plate 26 is positioned near the slide limit position in the forward direction, the eject projection (not shown) at the front end portion of the slide plate 26 is pushed backward, so that the slide plate 26 slides in the backward slide limit. The lock projection 26C of the slide plate 26 moves rearward as the lock projection 26C is pushed close to the position, and the lock projection 26C opens and closes the shutter and moves from the tip end surface of the projection holding portion 28C of the lock member 28 to the rear side. When detached, the shutter opening / closing and locking member 28 is rotated in the direction indicated by the arrow d by the elastic force of the spring 33, and the projection holding portion 2
By inserting 8C into the front side of the locking projection 26C of the slide plate 26, the slide plate 26 can be locked again in the backward slide limit position. At this time, the shutter opening / closing and locking member 28 is
At the time of rotation in the direction of arrow d, the shutter opening / closing arm 28A biases the floppy disci cart cartridge 24 in the cartridge holder 23 in the forward direction, whereby the floppy disci cartridge 24 is moved. The cartridge holder 23 is pushed out (eject).

(2) Structure of Cartridge Holder The structure of the cartridge holder 23 in this embodiment is shown in FIGS. 4 (A) and 4 (B). As shown in FIG. 4 (A), the cartridge holder 23 is made of sheet metal, and its lateral width W ₃ is the front end portion 11 of the large-capacity FD cartridge 10.
It has almost the same size (90.6 [mm]) as the width of A (that is, the width of 3.5 inch FD) and corresponds to the front end portion 40A of the large-capacity FD cartridge 10 corresponding to the front end portion 11A (FIG. 8).
And is formed larger than the lateral width of the front end portion 20A, and has a large capacity F
A rear end portion 40B corresponding to the rear end portion 11B (FIG. 8) of the D-cartridge 10 is integrally formed.

Further, as shown in FIG. 4 (B), the cartridge edge holder 23 has a rear end portion 40B, both ends of which are formed in a U-shaped cross section, and the space regions 41A and 41B at the rear end portion 40B are formed. Centering guides 42A and 42B for guiding and holding the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 are provided therein.

These centering guides 42A and 42
B is composed of a spring 43A and a plate member 44A, and a spring 43B and a plate member 44B, respectively.
One end of each of the springs 43A and 43B has a space region 41A.
And 41B are attached to the inner side surfaces 45A and 45B, and plate-shaped members 44A and 44B are attached to the other ends thereof substantially parallel to the inner side surfaces 45A and 45B, respectively. One end of each of the plate-shaped members 44A and 44B extends to the vicinity of the boundary between the front end portion 40A and the rear end portion 40B, and the other end projects from the FD carry-in / out port 46 of the cartridge holder 23 and is bent outward. .

Here, the length of the springs 43A and 43B and the plate-like member 4 when the floppy disk is not inserted.
The thicknesses of 4A and 44B are set so that the distance between the plate-shaped members 44A and 44B is slightly larger than the lateral width of the 3.5-inch FD cartridge 1 (the lateral width of the front end portion 11A of the large-capacity FD cartridge 10) (for example, 90.6 [mm]). Has been selected.

Thus, the 3.5-inch FD cartridge 1
When the is inserted into the cartridge holder 23, 3.5
The inch FD cartridge 1 has plate members 44A and 44B.
The large capacity FD is inserted along the side surfaces 47A and 47B of the
When the cartridge 10 is inserted into the cartridge holder 23, the front end portion 11 of the large-capacity FD cartridge 10 is inserted.
Up to A (corresponding to the front end portion 40A of the cartridge holder 23), the side surfaces 47A and 47B of the plate members 44A and 44B.
Is inserted along with the plate-shaped member 44A.
And 44B can be inserted while pushing in the directions indicated by arrow a and arrow b, respectively.

Accordingly, as shown in FIGS. 5 (A) and 5 (B), when the 3.5 inch FD cartridge 1 is inserted into the cartridge holder 23, substantially the rear end surface 6 of the 3.5 inch FD cartridge 1 is removed. The peripheral surface is a plate member 44A.
And side walls 47A and 47B of 44B and an inner wall surface 48 of front end 40A, thereby retaining 3.5 inch F
The D-cartridge 1 can be centered. Further, as shown in FIGS. 5C and 5D, when the large-capacity FD cartridge 10 is inserted, the cartridge holder 23 has the front end portion 11A of the large-capacity FD cartridge 10 attached to the cartridge holder 23. It is held by the inner wall surface 48 of the front end portion 40B, and the rear end portion 11B is held by the spring 43.
A plate member 44 to which a biasing force is given by A and 43B
Held by the sides 47A and 47B of A and 44B,
As a result, the large capacity FD cartridge 10 can be centered. Cartridge holder 2
The front end 40A of 3 is adapted to center a 3.5 inch FD cartridge 1 and a large capacity FD cartridge 10.

Here, as described above, the plate-like members 44A and 4A
Since the other end of 4B is bent outward at a predetermined angle, a taper surface is formed by the other end of the plate member 44A and the other end of the plate member 44B, which results in a 3.5 inch FD.
The cartridge 1 and the large-capacity FD cartridge 10 can be smoothly inserted into the cartridge holder 23. In particular, in the case of the large-capacity FD cartridge 10, even when the rear end 11B is only inserted into the cartridge holder 23, the plate-shaped members 44A and 44B are not caught and the front end 11A is as smooth as the cartridge. It can be inserted into the holder 23.

Furthermore, the cartridge holder 23 has a front end portion 40B and a rear end portion 40A corresponding to the tapered surfaces 12A and 12B at the boundary portion between the front end portion 11A and the rear end portion 11B of the large-capacity FD cartridge 10. Boundary is tapered surface 49
It is formed in A and 49B, which enables large capacity FD
Large capacity FD Cartridge 10 when Cartridge 10 is inserted
Tapered surfaces 12A and 12B are tapered surfaces 49A and 49
By engaging B, it is possible to prevent the large capacity FD cartridge 10 from being pushed too far.
The D-cartridge 10 can be centered.

(3) Operation and effect of the embodiment With the above configuration, this floppy disk device 20
Then, when the 3.5 inch FD cartridge 1 is inserted into the cartridge holder 23, the 3.5 inch FD cartridge 1 is inserted into the side surfaces 47A and 47 of the plate members 44A and 44B.
Inserted along B, the cartridge holder 23 is
The side surfaces 47A and 47B of the plate-like members 44A and 44B are the peripheral side surfaces of the inch FD cartridge 1 except for the rear end surface 6.
And the inner wall surface 48 of the front end 40A to hold the 3.5 inch FD cartridge 1 centered.

When the large-capacity FD cartridge 10 is inserted into the cartridge holder 23, the plate-shaped members 44A and 4A up to the front end 11A of the large-capacity FD cartridge 10 are inserted.
4B is inserted along the side surfaces 47A and 47B, and the rear end portion 11B is inserted while pushing the plate-like members 44A and 44B in the directions indicated by arrows a and b, respectively, and the cartridge holder 23 becomes large. The front end 11A of the capacitive FD cartridge 10 is held by the inner wall surface 48 of the front end 40B of the cartridge holder 23, and the rear end 11B is held.
Is held by the side surfaces 47A and 47B of the plate-like members 44A and 44B which are biased by the springs 43A and 43B, thereby centering the large-capacity FD cartridge 10. Therefore, in the floppy disk device 20, both the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 can be centered in the cassette holder 23.

According to the above construction, the cartridge holder 2 corresponding to the rear end portion 11B of the large-capacity FD cartridge 1 is provided.
A centering guide 42A composed of a spring 43A and a plate-shaped member 44A, and a spring 43B and a plate-shaped member 44 in the space regions 41A and 41B of the rear end portion 40B of No. 3 respectively.
By providing the centering guide 42B constituted by B, both the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 can be centered in the cassette holder 23, and thus the 3.5-inch FD cartridge 1 can be centered.
In addition, it is possible to realize a floppy disk device that is compatible with any of the large-capacity FD cartridges 10.

(4) Other Embodiments In the above embodiment, the center rig guide 4 including the spring 43A and the plate member 44A is used as the positioning means.
Although the case where 2A and the centering guide 42B including the spring 43B and the plate member 44B are used has been described, the present invention is not limited to this, and various other positioning means can be applied as the positioning means. For example, FIGS. 6A and 6B.
Centering guides 50A and 50B having the structure shown in FIG. 4 are provided in the space regions 41A and 41B, respectively, and both the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 are centered in the cartridge holder 23. .

That is, as shown in FIGS. 6A and 6B, the centering guides 50A and 50B are composed of a single plate-shaped member made of, for example, a stainless steel material for a spring, and the disk cartridge is When it is not inserted into the cartridge holder 23 or when the 3.5-inch FD cartridge 1 is inserted, its center portion is bent to form bent portions 51A and 51B, which are continuous with the bent portions 51A and 51B. Ends 52A, 53A and 5
2B and 53B are each formed in a flat shape. Further, the ends 52A and 52B are respectively attached to the cartridge holder 2
3 is fixed to the inner bottom surfaces 54A and 54B.

Furthermore, the ends 52 of the bent portions 51A and 51B
Guide portions 55A and 55B each having a triangular plate shape are integrally formed on the side surfaces on the A and 52B sides. The guide portions 55A and 55B are bent at a predetermined angle to the end portions 52A and 52B when the disc cartridge is not inserted in the cartridge holder 23 or when the 3.5-inch FD cartridge 1 is inserted. It is in a slumped state. Therefore, as shown in FIG. 7 in which parts corresponding to those in FIG. 4 are assigned the same reference numerals, in the state where the centering guides 50A and 50B are attached to the space regions 41A and 41B, respectively, the guide portions 55A and 55B respectively A tapered surface is formed so that the 3.5-inch FD cartridge 1 and the large-capacity FD cartridge 10 can be easily inserted.

Further, the centering guides 50A and 5
0B is formed such that when a force is applied to the bent portions 51A and 51B in the direction of arrow a, the end portions 53A and 53B slide in the direction of arrow a, and the centering guides 50A and 50B are entirely flat. ing. In this case, the guide portions 55A and 55B are respectively bent portions 51A.
And 51B so as to be folded over.

Further, as shown in FIG. 7, the centering guides 50A and 50B are the centering guides 50.
The distance between A and 50B is the center rig guide 42 described above.
Same as A and 42B, 3.5 inch FD Cartridge 1
Is attached to the inner bottom surfaces 54A and 54B of the cartridge holder 23 so as to be slightly larger (for example, 90.6 [mm]) than the lateral width (the lateral width of the front end portion 11A of the large-capacity FD cartridge).

Thus, the 3.5-inch FD cartridge 1
At the time of insertion, the 3.5-inch FD cartridge 1 is inserted along the inner surfaces 56A and 56B of the centering guides 50A and 50B. On the contrary, when the large-capacity FD cartridge 10 is inserted, the tip of the large-capacity FD cartridge 10 is first guided. Inclined surfaces 57A and 5 of portions 55A and 55B
The guide portions 55A and 55B are bent toward the end portions 52A and 52B by abutting against 7B and further pushing.

Subsequently, the leading end of the large capacity FD cartridge 10 has side surfaces 58A and 58B of the guide portions 55A and 55B.
Press to slide the ends 53A and 53B in the direction of arrow a. As a result, the bent portions 51A and 51B are gradually pushed downward, and the back surface (the surface on which the center hub is provided) of the large-capacity FD cartridge 10 contacts the bent portions 51A and 51B, and finally the centering guides 50A and 50B are flattened. (FIG. 8 (D)).

Therefore, as shown in FIGS. 8 (A) and 8 (B) in which parts corresponding to those in FIG. 4 are designated by the same reference numerals, the cartridge carriage holder 23 has a side surface when the 3.5 inch FD cartridge 1 is inserted. Most of the peripheral side surfaces except 6 are held by the inner side surfaces 56A and 56B of the centering guides 50A and 50B and the inner wall surface 48 of the front end portion 40A so that the 3.5 inch FD cartridge 1 can be centered. ing. Further, as shown in FIGS. 8C and 8D, when the large-capacity FD cartridge 10 is inserted, the cartridge edge holder 23 has its front end portion 11A connected to the front edge portion 40A of the cartridge edge holder 23. The large-capacity FD cartridge 10 can be centered by being held and held between the centering guides 50A and 50B and the upper inner wall surface 59 of the cartridge holder 23 by the biasing force of the bent portions 51A and 51B. It is done like this.

Further, in the above-mentioned embodiment, the case where the 3.5-inch FD cartridge 1 is used as the first disk cartridge and the large-capacity FD cartridge 10 is used as the second disk cartridge, the present invention is not limited to this. Without being limited to this, various other disk cartridge ridges may be applied as the first disk cartridge ridge and the second disk cartridge ridge.

Further, in the above-mentioned embodiment, the case where the disk 3 is used as the first disk-shaped recording medium and the disk 12 is used as the second disk-shaped recording medium has been described, but the present invention is not limited to this. Various other disk-shaped recording media can be applied as the first disk-shaped recording medium and the second disk-shaped recording medium.

[0049]

As described above, according to the present invention, when the first disk cartridge is inserted by the positioning means, the cartridge holder holds both side surfaces of the first disk cartridge. The first disk cartridge is guided and held in the insertion direction, and when the second disk cartridge is inserted, the second disk cartridge is guided and the second disk cartridge is biased. By holding it, it is possible to position multiple types of Flotpie disk cartridges of different sizes, thus realizing a floppy disk device that can support multiple types of Flotpie disk cartridges of different sizes. can do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a floppy disk device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the overall configuration of a Frotpie disk device according to an embodiment of the present invention.

FIG. 3 is a plan view showing the overall configuration of a Frotpie disk device according to an embodiment of the present invention.

4A and 4B are a horizontal sectional view and a vertical sectional view, respectively, for explaining the configuration of the cartridge holder according to the embodiment.

FIG. 5 is a longitudinal sectional view and a lateral sectional view showing a state in which a 3.5-inch FD cartridge is inserted and a state in which a large-capacity FD cartridge is inserted.

FIG. 6 is a perspective view for explaining the configuration of a centering guide according to another embodiment.

7A and 7B are a horizontal sectional view and a vertical sectional view used for explaining a centering guide according to another embodiment.

8A and 8B are a longitudinal sectional view and a lateral sectional view for explaining a centering guide in a state where a 3.5-inch FD cartridge is inserted and a state where a large-capacity FD cartridge is inserted.

FIG. 9 is a plan view for explaining the configuration of a 3.5-inch FD cartridge.

FIG. 10 is a plan view for explaining the configuration of a large-capacity FD cartridge.

[Explanation of symbols]

1 ... 3.5-inch FD cartridge, 10 ... Large-capacity F
D Cartridge, 20 ... Flotpie disk device, 2
3 …… Cartridge holder.

Claims (5)

[Claims] 1. A first disk cartridge having a first disk-shaped recording medium having a first diameter rotatably accommodated therein, or a second disk-shaped recording medium having a second diameter. A second disk-shaped recording medium having a second diameter is rotatably housed therein and is rotatably housed therein. At least a lateral width of a rear end portion of the second disk-shaped recording medium is larger than a lateral width of the first disk cartridge. In a floppy disk device having a cartridge cartridge holder in which a disk cartridge is selectively inserted and the first or second disk cartridge is mounted on a spindle and a disk table, the cartridge cartridge holder is the first cartridge holder. When the disk cartridge is inserted, both side surfaces of the first disk cartridge are guided and maintained in the inserting direction of the first disk cartridge. And, when the second disc car Toritsuji is inserted, the second
And a positioning device for guiding and holding the second disk cartridge as described above. 2. The pair of plate-shaped members for holding the side surfaces of the first or second disk cartridge by guiding the side surfaces of the first or second disk cartridge in the inserting direction of the first or second disk cartridge. The floppy disk device according to claim 1, further comprising: a biasing unit that biases the plate-shaped members toward each other when the second disk cartridge is inserted. . 3. The positioning means is a leaf spring member, and the leaf spring member is a side surface that guides and holds both side surfaces of the first disk cartridge in the insertion direction of the first disk cartridge. And a biasing surface through which the upper surface or the lower surface of the second disk cartridge passes and which biases and holds the second disk cartridge. Pydisk device. 4. The floppy disk device according to claim 1, wherein the positioning means has a taper surface on the loading / unloading side of the cassette holder. 5. The cartridge holder is provided with a preventive means for preventing the second cartridge holder from being pushed too far when the second cartridge holder is inserted. The floppy disk device described in 1.