JPH10302428A - Disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the accurate positioning operation by providing hole parts for positioning the main body of a cartridge A to a disk drive device at three to four places for the cartridge A, and also to secure spaces for providing these hole parts. SOLUTION: In this cartridge, a side wall plate 5 at the opening side for loading/unloading the circular disk is attached freely openably/closably to the cartridge main body so as to be inserted and ejected to/from the confronted space of one end parts of both front/rear surface plates 1, 3 which are confronted with each other. In this case, the hole arranging parts wherein positioning pins existent on at least two places are fitted perpendicularly to the one surface plate at the time of the side wall plate 5 is closed, are provided on either one surface plate out of the front/rear surface plates 1, 3 of the cartridge and on the side wall plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge for rotatably storing a disk for recording digital information such as a compact disk.

[0002]

2. Description of the Related Art The capacity of recording discs for reading and writing predetermined information as digital information has been dramatically increased. In particular, discs for recording in a digital system are subject to dust and scratches generated on the surface thereof. Since there is a risk of malfunctioning, it is preferable to use a system in which the cartridge is stored in a cartridge and the device is hung.

Conventional disk cartridges, such as compact disks, for storing digital information recording disks rotatably inside the cartridges, have various forms depending on the disk drive device that drives and rotates the disks.

The top view shown in FIG. 6 and the side view shown in FIG. 7 are provided with a window portion W which is opened in the bottom plate 1 and the top plate 3 (or only the bottom plate 1) on both front and back sides of the cartridge A. The cartridge A includes a bottom plate 1 and a top plate 3 (lid plate), which are opposite rectangular front and rear double-sided plates.
A window W formed in the bottom plate 1 or the bottom plate 1 and the top plate 3; and side walls 2, 2, 2, 2 integrally formed on four sides around the rectangular bottom plate 1, and It is a flat case made of plastic and covered with a face plate 3, and a disk D is rotatably housed inside the case.

The window portion W of such a cartridge A starts from one end of the cartridge A and moves in the direction of the other end parallel to the one end.
Although it is formed in a U-shape, the side wall plate 2 at one end where the formation of the window portion W is started among the side wall plates 2, 2, 2, 2 around the cartridge A is formed. A shutter plate S for opening and closing the window portion W is slidably mounted on the linear guide R via a spring F with a part of the side wall plate 2 as a linear guide R. FIG. 8 shows a bottom plate 1 on both front and back sides.
FIG. 3 is a perspective view showing a U-shaped shutter plate S of a cartridge A provided with a window portion W and a window W opened in the upper plate 3, S1 is an upper shutter plate, S2 is a lower shutter plate, and S3 is a connection. It is a board.

[0006] The cartridge A is loaded in a disk drive, rotates the disk D, and performs reading and writing. The movement of the cartridge A in the drive is as follows. ing.

The operation of writing data to the disk D in the cartridge A and the operation of reading data from the disk D are performed when the disk is loaded in the drive device.
The shutter portion S of the window portion W provided in the cartridge A is linearly slid along the linear guide to open the window portion W.

The positioning operation of the cartridge A main body and the internal disk D with respect to the disk drive device is performed by positioning positioning fixing pins on the drive device side in positioning holes formed at predetermined positions of the cartridge A. Although the insertion is performed, at least two or more positioning holes are required for the cartridge A. In addition, in order to increase the accuracy of the positioning operation, it is necessary to provide three or four holes. There is.

By this positioning operation, the cartridge A is positioned and fixed at a predetermined position in the drive device.
Disk D housed therein and its center hole (or a rotating hub rotatably provided on bottom plate 1, top plate 3, etc. of cartridge A corresponding to the center hole)
Is set at the correct position with respect to the drive rotary shaft portion of the apparatus, and is pinched and pressed to set the center position of the disk D, and the disk D is set at the correct position with respect to the read / write head. After that, or after the center position is set, the read / write sensor, the laser, the lens group, and the like such as a lens group are linearly moved to a correct position in the peripheral direction of the disk D by a predetermined amount.

If the cartridge A is incorrectly set at an eccentric position with respect to the drive rotation axis of the apparatus, the accurate rotation of the disk D is impaired, and it is difficult to read and write correctly by the read / write head. become.

The drive shaft of the drive device is generally tapered, and specifically,
Near the center of the surface of the cartridge A, a tapered disk-shaped mechanism (rotating hub) is provided near the center of the surface of the cartridge A so that the cartridge A can freely rotate by catching the center hole of the disk D. The taper portion is positioned at the final position by closely fitting the center hole of the disk D. However, the position adjustment by the taper is a small adjustment amount, and the position of the disk D can be largely adjusted. Therefore, positioning by the cartridge A main body as described above becomes necessary.

In general, a cartridge has a structure corresponding to only a predetermined disk drive, and even if an attempt is made to read or write the cartridge by a disk drive which is not associated with the cartridge, the cartridge cannot be loaded into the drive. Or the disk inside the cartridge cannot be rotated or read / written.

As described above, in the conventional disk cartridge, the cartridge can be loaded in the drive device,
Operation cannot be performed unless a drive device designed to be readable and writable is used, so that the disk cartridge can be used effectively, and the disk D can be freely stored in or removed from the cartridge and replaced. There is a demand for a structure that can be replaced with necessary disks and that a plurality of disks prepared to prevent inadvertent erasure at the time of lending can be replaced.

[0014]

SUMMARY OF THE INVENTION According to the present invention, accurate positioning operation can be performed by providing three or four holes for positioning the main body of the cartridge A with respect to the disk drive device. It is another object of the present invention to secure a space for providing the hole.

[0015]

According to the present invention, an opening-side side wall plate 5 for accommodating and removing a circular disk can be inserted into and removed from an opposing gap at one end of the front and back double-sided plates 1 and 3 facing each other. In a disk cartridge that is openably and closably mounted on the cartridge body, at least one of the front and back double-sided plates 1 and 3 and the side wall plate 5 are provided at least when the side wall plate 5 is closed. A disc cartridge characterized in that a hole is provided in which a positioning pin is fitted perpendicularly to one face plate.

Further, according to the present invention, in the disk cartridge according to the present invention, the diameter of the hole provided in the one-sided plate is as follows.
The disk cartridge is smaller than the diameter of the hole provided in the side wall plate 5.

According to the present invention, in the disk cartridge of the present invention, the positioning pins at the two locations are respectively fitted into the one-side plate vertically.
1, 12 and the holes 12, at which the positioning pins at the two locations are vertically fitted into the side wall plate 5, respectively.
Reference numeral 14 denotes a disk cartridge provided corresponding to the holes 11 and 12.

Further, according to the present invention, in the disc cartridge according to the present invention, the diameters a and b of the holes 11 and 12 of the one-sided plate and the diameters c and c of the holes 13 and 14 of the side wall plate 5 are respectively provided. This is a disk cartridge whose relationship with d is a <c and b <d.

According to the present invention, there is provided the disk cartridge according to the present invention, wherein the side wall plate on the opening side can be opened and closed with respect to the cartridge body via a hinge.

According to the present invention, in the disk cartridge of the present invention, a convex ridge is provided around a hole provided on one or both sides of the side wall plate, and the inner surface of one or both of the one side plate and the other side plate is provided on the inner surface. It is a disc cartridge provided with a concave portion into which a convex ridge is fitted.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk cartridge according to the present invention will be described below in detail according to an embodiment.

FIG. 1 shows a disc cartridge A of the present invention.
1 is a rectangular bottom plate, 2 is a side wall plate provided on three sides of the rectangular bottom plate 1, and 3 is a top plate.

On the other side of the bottom plate 1, there is provided an opening-side sidewall plate 5 for storing and taking out a circular disk (recording medium).

The side wall plate 5 is openably and closably attached to the disk cartridge main body so as to be able to be inserted into and removed from an opposing gap at one end of the bottom plate 1 and the top plate 3 facing each other.

One of the front and back double-sided plates 1 and 3 of the cartridge A, for example, the upper surface plate 3 is provided with positioning pins, which will be described later, disposed at least at two places of the disk drive device. For example, the upper surface plate 3
Holes 11 and 12 which are closely fitted vertically to
Is provided.

Further, the side wall plate 5 is connected to the bottom plate 1, the top plate 3
The side wall plate 5 is opposed to the holes 11 and 12 formed in the upper surface plate 3 when it is fitted and closed in the opposing gap at one end of the upper surface plate 3.
Are provided with holes 13 and 14, respectively.

FIG. 2 is an overall perspective view of the disk cartridge A when the side wall plate 5 is fitted into the opposing gap at one end of the bottom plate 1 and the top plate 3, and the opening side of the cartridge A is closed. When the opening side of the cartridge A is closed by the side wall plate 5, the hole portion 11 of the upper surface plate 1 and the hole portion 13 of the side wall plate 5 face each other in alignment with each other. The installation portion 12 and the hole formation portion 14 of the side wall plate 5 are also opposed to each other in an aligned state, and the hole formation portions 11 and 13 and the hole formation portions 12 and 14 which are opposed to each other in the aligned state.
The positioning pins of the disk drive are closely fitted in the cartridge, and the cartridge A is positioned at a predetermined position in the disk drive.

An openable and closable shutter plate S for opening and closing a window W provided on the bottom plate 1 or the bottom plate 1 and the top plate 3 is attached to the cartridge A.
Another hole 15 into which another positioning pin arranged in the drive device is fitted is formed in the front and back double-sided plates, for example, the upper surface plate 3.

Since the other parts are the same as those of the conventional disk cartridge, detailed description thereof will be omitted.

FIG. 3A is a sectional view taken along the line LL near the corresponding hole portions 11, 13 in the disk cartridge A of the present invention with the side wall portion 5 closed. The engaging portion 6 at the end and the engaging portion 7 at the end of the side wall opening of the cartridge A are engaged and recessed, and are locked and fixed in a posture in which the opening of the cartridge A is closed.

FIG. 4 (a) is a sectional view taken along the line LL near the corresponding hole portions 11, 13 in the disk cartridge A of the present invention with the side wall 5 closed. In the present invention, the recessed portion 11a is provided along the inner peripheral edge of the upper surface plate 3 in the holed portion 11 provided in the upper surface plate 3, if necessary. A concave portion 1a is provided on the inner surface of the bottom plate 1 opposed to the third hole portion 11.

In the present invention, if necessary,
4 (a), a hole 1 provided in the side wall plate 5;
3 is provided with a ridge 13a along the periphery of the hole formed on the upper and lower surfaces of the side wall plate 5.

Then, as shown in FIG.
When the side wall 5 is closed, the convex ridges 13a, 13a are fitted into the recesses 11a, 1a, respectively, and the side wall 5 is locked and fixed in a posture in which the opening of the cartridge A is closed.

Although not shown, the corresponding holes 12 and 14 of the disc cartridge A of the present invention with the side wall 5 closed are also provided in the holes 12 provided in the upper plate 3. A concave portion 12a is provided along the inner peripheral edge of the upper surface plate 3 as needed, while a concave portion 1a is formed on the inner surface of the bottom plate 1 facing the holed portion 12 of the upper surface plate 3. Are provided as needed.

Similarly, in the hole portion 14 provided in the side wall plate 5, convex ridge portions 14a are provided as necessary along the perimeters of the hole portions on the upper and lower surfaces of the side wall plate 5. The concave portions 12a, 1a are respectively provided with convex ridge portions 14a, 1a.
4a is fitted, and the side wall portion 5 is locked and fixed in a posture in which the opening of the cartridge A is closed.

In the disk cartridge of the present invention, the diameters a and b of the holes 11 and 12 of the one-side plate (for example, the upper plate 3) shown in FIG. , 14 with diameters c and d, respectively, a <c,
b <d.

FIG. 4B is a partial side sectional view of the disk cartridge A positioned by the cartridge positioning mechanism 20 provided on the disk drive device side.
The positioning mechanism 20 is configured such that a positioning pin 22 is attached to a support portion 21 which can be driven vertically in a predetermined position in a disk drive device.

FIG. 4 loaded in the disk drive device
In the cartridge A shown in FIG. 4A, the positioning pins 22 move upward as shown in FIG. Cartridge A is positioned and fixed at a predetermined position in the disk drive.

Although not shown, the positioning pins 22 similarly arranged at other locations in the disk drive device are moved upward to densely align the corresponding holes 12 and 14 (see FIG. 1). In particular, the cartridge A is tightly fitted into the hole portion 12, whereby the cartridge A is positioned and fixed at a predetermined position in the disk drive device.

In the disk cartridge A of the present invention, as shown in FIG. 5, holes 13 and 14 provided in the side wall plate 5 for closing the opening side of the cartridge A are provided.
It may be a cutout hole formed by cutting out in a U-shape so as to open a portion inside the cartridge A.

Also in this case, if necessary, the ridges 13a, 14a, the inner surface of the bottom plate 1 facing the ridges 13, 14 and the holes 11, 11,
12, the concave portion 1 a and the concave portion 11
a, 12a can be provided.

By forming the holes 13 and 14 in the shape of a long hole in this way, the fitting operation direction of the positioning pins of the disk drive device to the holes 13 and 14 can be changed in the vertical direction (one-dimensional Direction) as well as the two-dimensional direction of the vertical direction and the horizontal direction, so that the fitting operation can be performed smoothly, and the positioning of the cartridge A to the fixed position by the positioning pin can be performed accurately. The positioning and fixing can be expected.

As shown in FIGS. 1 and 2, the side wall plate 5 in the disk cartridge A of the present invention has a bottom plate 1,
One end of a side wall plate 5 is rotatably attached to a support shaft 4 provided vertically at one end of the opposing gap between the two side plates of the upper surface plate 3 so that the support shaft 4 can be opened and closed with the support shaft 4 as a rotation center O. As shown in FIG. 1, an engaging portion 6 is provided at the other end of the side wall plate 5, and an engaging portion 7 is provided vertically at the other end of the opposing gap between the bottom plate 1 and the upper surface plate 3.

Then, the side wall plate 5 is rotated in the closing direction (the direction of the arrow) via the support shaft 4 to
Opening (opposite gap between both side plates of bottom plate 1 and top plate 3)
Then, the side wall plate 5 is fitted, and the concave and convex portions of the engaging portions 6 and 7 are engaged with each other to be closed and fixed.

As another example, the support shaft 4 for attaching the side wall plate 5 in the disk cartridge A of the present invention is omitted, and the opposing gap (opening portion) between the bottom plate 1 and the top plate 3 on both sides is omitted. ) May be provided at both ends with the same engaging portions as the engaging portions 7, while on both ends of the side wall plate 5, the same engaging portions as the engaging portions 6 may be provided at the both ends, The side wall plate 5 may be fitted parallel to the opposing gap of the cartridge A, and the concave and convex portions of the engaging portions 6 and 7 may be engaged with each other to be closed and fixed.

[0046]

According to the present invention, there is provided a disk cartridge provided with an opening which can be opened when a disk stored in the cartridge is taken out or replaced, and an opening / closing lid for opening and closing the opening. The side wall plate is provided with a hole which communicates with the positioning hole formed in the bottom plate or the top plate of the cartridge body in alignment with the side wall plate. A space can be secured in which at least two or more cartridge main body positioning holes can be provided with respect to the cartridge structure accommodating the disk, and thus a plurality of cartridge main body positioning holes are provided. The cartridge body for the disk drive device It has the effect of enabling the positioning operation more accurately.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which an opening of a disk cartridge according to an embodiment of the present invention is open.

FIG. 2 is an overall perspective view showing a state where the opening of the disk cartridge of the present invention is closed.

FIG. 3A is a partial sectional side view of a positioning hole of the disk cartridge of the present invention, and FIG. 3B shows a state in which positioning pins are fitted into the positioning hole of the disk cartridge of the present invention. Partial sectional view.

4A is a partial side sectional view of a positioning hole of the disk cartridge of the present invention, and FIG. 4B shows a state where a positioning pin is fitted into the positioning hole of the disk cartridge of the present invention. Partial sectional view.

FIG. 5 is an overall perspective view showing a state in which an opening of a disk cartridge is opened in another embodiment of the present invention.

FIG. 6 is an overall plan view of a conventional disk cartridge.

FIG. 7 is an overall side view of a conventional disk cartridge.

FIG. 8 is a perspective view showing a shutter plate for opening and closing a window portion used in a conventional disk cartridge.

[Explanation of symbols]

A: Disk cartridge body S: Shutter plate W
… Window part 1… bottom plate 2… side wall plate 3… top plate 4… support shaft 5…
Opening / closing side wall plates 6, 7 ... engaging portions 11, 12, 13, 14 ... positioning holes 11a, 12a ... recesses 13a, 14a ... convex ridges 15 ... positioning other holes 20 ... Positioning mechanism 21 ... Support part 22 ... Positioning pins 31,32,33,34 ... Positioning holes S1 ... Top shutter plate S2 ... Bottom shutter plate S
3… Connection plate R… Linear guide rail

Claims (6)

[Claims] An opening side wall plate for accommodating and removing a circular disk can be opened and closed with respect to a cartridge body so that it can be inserted into and removed from an opposing gap at one end of the front and back double-sided plates 1 and 3 facing each other. In the disc cartridge mounted on the side wall, one of the front and back side plates 1 and 3 of the cartridge and the side wall plate 5 are attached to the side wall plate 5.
A disc cartridge characterized in that at least two locating pins are vertically inserted into the one face plate at the time of closing. 2. The disk cartridge according to claim 1, wherein the diameter of the hole provided in said one face plate is smaller than the diameter of the hole provided in said side wall plate. 3. The holes 11, 11 in which the positioning pins at the two locations are vertically inserted into the one face plate.
12 and the positioning pins at the two places
The holes 12 and 14 respectively fitted vertically to the
2. The disk cartridge according to claim 1, wherein said disk cartridge is provided corresponding to said hole portions. 4. The relationship between the diameters a and b of the holes 11 and 12 of the one-sided plate and the diameters c and d of the holes 13 and 14 of the side wall plate 5 is a <c, 3. The disk cartridge according to claim 2, wherein b <d. 5. The disk cartridge according to claim 1, wherein the side wall plate on the opening side can be opened and closed with respect to the cartridge body via a hinge. 6. A convex ridge portion is provided around a hole provided on one or both sides of the side wall plate, and each of the concave portions into which the convex ridge portion is fitted into one or both inner surfaces of the one-side plate and the other-side plate. The disk cartridge according to claim 1, further comprising: