JP2587602B2 - Optical disk cartridge - Google Patents

Description

BACKGROUND OF THE INVENTION [0001] BACKGROUND OF THE INVENTION This invention relates to an optical disc mosquitoes accommodating an optical disk which enables writing or reading of information
About cartridge . 2. Description of the Related Art A floppy disk having a diameter of 86 mm is housed in a case having a width of 90 mm, a length of 94 mm, and a thickness of 3.3 mm, which is standardized according to the US standard (ANSI X3B8 / 86-57). A shutter member is attached to this case (hereinafter, referred to as a 3.5 "FD cartridge). On the other hand, an optical disk having a diameter of 80 to 90 mm also has a width of 90 mm or 94.4 mm and a thickness of about 6 mm. Alternatively, the standard is being promoted by housing in an 8 mm case (ISO, SC23), which is also provided with a shutter member, which is hereinafter referred to as an optical disk cartridge . in the information processing apparatus for two types of disks, the information processing apparatus for 86mm floppy disk, optical disk cartridge is 3.5 "Ca for FD Since the increased thickness compared to the cartridge can not be inserted into the cartridge insertion part, it is possible to prevent erroneous insertion. However, it is conceivable that a 3.5 "FD cartridge is erroneously inserted into an information processing apparatus for an optical disk due to a large cartridge insertion portion. In such a case, an optical head for reading signals inside the information processing apparatus is considered. It is conceivable to damage the disk and the rotating part of the disk, etc., and it is important to prevent it beforehand. As close to
For example, FIG. 3 of JP-A-53-71806 shows a protective cover in which both ends are cut off, that is, a cartridge. This cartridge has a configuration in which a video record disk which is a disk is built in and protected, and only the record disk is removed. Another example is disclosed in
JP-A-7-86167 describes a cartridge for storing an information disk (that is, a disk).
An object of the present invention is to prevent a cartridge from being inserted obliquely. For this purpose, a roll bar that is slidable in a direction perpendicular to the cartridge insertion direction is provided to suppress the cartridge, thereby preventing oblique insertion. Have achieved. [0005] However, of the above-mentioned prior art, in the invention described in Japanese Patent Application Laid-Open No. 53-71806, two cut-off portions provided on the cartridge are provided. There is no explanation of action, effect, etc.
It merely provides a cut-out to approximate the shape of a disk-shaped video record. Further, these cut-off portions are provided on the opposite side of the cartridge insertion direction, and have nothing to do with preventing erroneous insertion of different types of cartridges. In the invention described in Japanese Patent Application Laid-Open No. 57-86167, although the oblique insertion of the cartridge is prevented, the invention does not relate to the prevention of erroneous insertion of a different type of cartridge. As described above, the prior art does not show any means for effectively preventing the insertion of a different type of cartridge. An object of the present invention is to provide an optical disk cartridge which is clearly distinguishable from a heterogeneous cartridge, in particular, a 3.5 "FD cartridge, and whose design is easy. In order to achieve the above object, the present invention provides an optical disc on which information is recorded or reproduced.
A disk that is housed in a disc and is almost square and flat
The optical disk is rotatably housed in the
Do not have an opening that exposes a part of the optical disc to the outside.
And a case movably mounted on the case and
The mouth can be opened and closed, and an external force for opening the opening
I and a shutter member comprising a force receiving portion for receiving the
In the optical disk cartridge, the case is
First and second flat surfaces sandwiching the disk surface of the optical disk
And wherein the flat surfaces have a first edge, and the first edge
Substantially perpendicular second and third edges and substantially parallel to the first edge
A fourth edge, and a pair of
A reference hole having a round hole and a long hole
The first flat plate surface opposite to the second flat plate surface is moved forward.
A predetermined edge viewed from the fourth edge toward the first edge;
In the position, the second edge is on the left and the third
The case is located on the right side, and the case
3.5-inch flexible disc car specified
Direction along the first edge as compared to the cartridge case
Are almost equal in width, and their overall thickness is made thicker
Te becomes, the shutter member, the case the first
Along the edge, the opening is located in the third edge direction.
A closed position for closing; and
Move between the opening position to open the opening, the case
The opening in the direction along the first edge,
Disposed in a position corresponding to the central portion near the first edge, said Ke
At the corner where the first edge of the source and the second edge intersect,
An angle of approximately 45 degrees with respect to the first edge and the second edge
Along with the first and second edges.
Each side is about 5mm long and cut off diagonally
Is provided, and the inclined portion is provided in accordance with the ANSI standard.
3.5 inch flexible disk car
Compared to the slanted part provided in the cartridge case,
When viewed in Jo Tokoro orientation between each other in the first edge
Placed on opposite left and right corners and almost equal
The shutter portion is formed by an angle and a length of each side.
The force receiving portion of the material is configured such that the shutter member is in the closed position and the
When moving between the opening position, the first
Move along the edge between the third edge and the opening
And the center of the round hole among the reference holes of the case is
On the line perpendicular to the first edge
Is bordered by the slanted portion . According to the present invention, the oblique portion is formed in a direction different from that of the 3.5 "FD cartridge when viewed from the direction of movement of the opening of the shutter member. And can be easily distinguished. In addition, since the position of the force applying portion is different from that of the 3.5 "FD cartridge as described above, the erroneous insertion of the 3.5" FD cartridge into the information processing apparatus can be prevented. Further, since the position of the oblique portion is set with the round hole as a reference hole, the position can be set easily and accurately, and the design of the disk case is facilitated. Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a block diagram showing a first embodiment of an optical disk cartridge according to the present invention, an optical disc mosquito in Figure 2 Figure 1
It is the figure which looked at the cartridge from the back. In these figures, reference numeral 100 denotes a cartridge (that is, an optical disk) for storing and protecting the optical disk 104 therein.
A disk cartridge 200 is a cartridge insertion unit provided in an information processing apparatus (not shown). 101
Is normally closed and the optical disc cartridge 100
Shutter member that slides open when is inserted into the information processing apparatus; 102, an opening of the shutter member 101;
03 is an opening of the optical disc cartridge 100, 106
Insertion port of the motor rotating unit for rotating the optical disc 104 (not shown) is inserted, 107, 108 light di
A reference hole for defining the various dimensions of the disk cartridge 100, also the optical disc cartridge 100 is also used for positioning when inserted correctly into the cartridge insertion part 200. Here, on the insertion side of the optical disk cartridge 100 , a 3.5 "FD cartridge (US standard AN)
A slanted cut-off portion (hereinafter referred to as a slanted portion) 105 is provided at the side end opposite to the side opposite to SI X3B8 / 86-57, and the cartridge insertion portion 20 is opposed to the cutout portion.
0 is a stopper 20 for preventing erroneous insertion of a different type of cartridge.
1 is provided. The optical disk 104 includes a read-only optical disk having pits with projections and depressions, a write-once optical disk using holes, phase change, and organic dyes, and a rewritable optical disk such as magneto-optical and phase change. FIG. 3 is a view showing an optical disk viewed from the side shown in FIG.
FIG. 3 is an explanatory view of a disc cartridge 100. Side end portion 109 of the slant portion 105 and the opposite side shown by the solid line in the figure the light
Is of the disc cartridge 100, slant portion 111 and the side edge portions 110 shown by broken lines are those of the cartridge for 3.5 "FD. [0018] As in FIG. 3, an optical disc cartridge
In the cartridge 100, the 3.5 ”FD cartridge has an inclined portion 105 located on the opposite side with respect to a center line parallel to the side end portion.
Optical disc cartridge 100 inserted in proper direction
A stopper 201 is provided at a position opposed to the inclined portion 105 of FIG. Then, an optical disk having the inclined portion 105
When the cartridge 100 is inserted, the optical disk cartridge 100 is loaded at a correct position without the inclined portion 105 coming into contact with the stopper 201. However, other than this, for example, 3.5 "F
When a heterogeneous cartridge such as a cartridge for D is inserted, the side end 110 abuts against the stopper 201, and therefore, the heterogeneous cartridge is not sufficiently inserted. Therefore, erroneous insertion of different types of cartridges can be prevented beforehand, and as a result, damage to the optical head and the optical disk rotating unit as the information processing unit of the information processing apparatus can be avoided. An optical disk cartridge used in this embodiment
In the case of a cartridge having a width of 90 mm, by selecting the following dimensions with respect to the reference hole 108, the position of the inclined portion 105 in the cartridge 100 can be shared with the 3.5 "FD cartridge. , Productivity and the design of the cartridge insertion portion can be simplified. Here, the distance L ₁ between the reference holes 107 and 108, 3.
This is the same as the 5 ”FD standard draft (such as ANSI X3B8 / 86-57). In this embodiment, the shutter is closed.
In order to open an opening 103, the shutter member 10
1 is the oblique portion 1
05 is defined as the position of the optical disk cartridge 100.
The shutter member 101 slides through the center and slides.
At the opposite corner with respect to the center line perpendicular to the leading edge of
I'm trying. Therefore, the shutter receiving the shutter opening force
The portion (force receiving portion) of the shutter member 101 is the shutter portion.
It is on the end face of the material 101 on the side opposite to the slope 105 side.
As a result, the contact portion of the opening force and the inclined portion 105
Can be provided separately, and these function reliably.
To obtain the required dimensions to increase their reliability.
it can. In the case of a cartridge having a width of 94.4 mm,
In the L ₁ and L _2, a value obtained by adding each 4.4mm is appropriate. It should be noted that the optical deca cartridge 100 is not limited to the above dimensions, and a new inclined portion 105 is formed at least on the side end portion 110 opposite to the inclined portion 111 of the 3.5 ″ FD cartridge. Along with this, in the present invention, by providing the stopper 201 facing the new inclined portion 105, erroneous insertion of the 3.5 "FD cartridge can be prevented. . FIG. 4 shows an optical disk cartridge according to the present invention.
It is a block diagram showing a second embodiment of di, which is seen from the same direction as FIG. In the figure, the same reference numerals as in FIG. 3 denote the same parts. The reference hole 1 shown in FIG.
07 and 108 are located on the opposite side of the cartridge insertion side as compared with the case of FIG. 3, but these positions are essentially
It is not a typical thing and is not bound by this. The shutter member 101 shown by a solid line in FIG. 4 is that of the optical disk cartridge 100 of this embodiment, and is a 3.5 "FD which is a different type of cartridge shown by a broken line.
Compared to the shutter member 112 in use cartridge, and narrow configuration only dimension L ₃ width on one side. The operation and effect of this will be described below. FIGS. 5 to 8 are explanatory diagrams of the operation of the information processing apparatus using the second embodiment shown in FIG. In these figures, reference numeral 202 denotes a first lever for opening the shutter member 101 when the optical disc cartridge 100 is inserted;
03, after insertion of the optical disc cartridge 100, a second lever for actuating the pressing device for pressing the optical de <br/> disc 4 rotating part of the motor, these first, second
Levers 202 and 203 are pulled by a spring 204. Reference numeral 205 denotes a stopper for preventing the operation of the second lever 203 when the optical disc cartridge 100 is inserted with the shutter member 101 closed. Next, the operation of the information processing apparatus will be described. 5 and 6 show the operation when the optical disk cartridge 100 is correctly inserted. That is, when the optical disk cartridge 100 is inserted into the cartridge insertion portion 200 in the direction of arrow A,
The first lever 202 comes into contact with the side of the shutter member 101 and pivots in the direction of arrow B in accordance with the insertion of the optical disc cartridge 100, and the force receiving portion 101a of the shutter member 101
, The shutter member 101 is slid in the direction of arrow C. When the optical disk cartridge 100 is further inserted, the end thereof contacts and presses the second lever 203, whereby the pressing device is operated, and the inside of the optical disk cartridge 100 is inserted through the insertion port 106.
Optical disc 104 is pressed against the rotating part of the motor. In this state, the opening 102 of the shutter member 101 matches the opening 103 of the cartridge, and the information processing apparatus is activated. Next, the operation of the information processing apparatus when a different type of cartridge is inserted will be described with reference to FIGS. However, here, 3.5 "If the FD cartridge is inserted will be explained as an example. [0030] As described above, 3.5" shutter member 112 of the FD cartridge, an optical disk cartridge 1
2. Since the width is smaller than that of the shutter member 101 of FIG.
When the 5 ″ FD cartridge 100 ′ is inserted, the first
Of the 3.5 ″ FD cartridge 100 ′ further enters in the direction of arrow A, and the first lever 202 pivots in the direction of arrow B. The shutter member cannot be hooked and only slides on its end face.
12 cannot be opened. For this reason, the 3.5 "FD cartridge 1
00 'becomes the shutter member 112 is inserted remains closed, the first lever 202, the light de shown in FIG. 6
As compared with the case where the disk cartridge 100 is inserted, the disk cartridge 100 is at a position where the disk cartridge 100 is advanced toward the insertion side (that is, the arrow A side). Therefore, before the 3.5 ″ FD cartridge 100 ′ comes into contact with the second lever 203, the stopper 205 provided
As a result, the 3.5 "FD cartridge 100 'itself is stopped via the first lever 202. In this manner, the operation of the second lever 203 is hindered, and the motor rotation unit and the optical head are stopped. Here, the difference L on one side between the width of the shutter member 101 of the optical disk cartridge 100 and the width of the shutter member 112 of the 3.5 "FD cartridge can be prevented.
₃ is desirably 2.5 mm or more. In FIGS. 5 to 8, the stopper 201 shown in FIG. 1 and the like is also provided, which also constitutes a double different cartridge incorrect insertion prevention mechanism. As described above, according to the present invention,
Make the total thickness thicker than the 3.5 "FD cartridge, and
3.5 "FD car on first edge where shutter member moves
It is cut off diagonally at the corner on the opposite side
Beveled section makes it clear and extremely easy
Can be distinguished from 3.5 "FD cartridges
Disk using 3.5 "FD cartridge
Cannot be inserted into the device,
As an optical disk device using a disk cartridge
Also, due to the difference in the set position of the slanted part, the 3.5 "FD car
It is possible not to attach the cartridge. According to the present invention, the opening of the case is provided.
Is the direction along the first edge where the shutter member moves
At a position corresponding to the vicinity of the center of the first edge.
At the corner where the first edge and the second edge intersect.
An inclined portion is provided, and further receives a driving force from a driving means.
The force receiving portion of the shutter member is moved along the first edge.
Between the third edge on the opposite side to the left and right and the opening
Between the opening, the slope, and the shutter.
And the force receiving portion of the material is separated in the direction along the first edge.
Therefore, in the optical disk device,
Are the shutter member driving means, head means, and slanted parts
It is possible to easily set the arrangement relationship of the ejection means, and
Facilitates device design and assembly. Furthermore, the present invention
According to the method described above, the circle provided on the second flat surface of the case is provided.
Pass through the center of the round hole among the reference holes
On a line perpendicular to the first edge and the first edge
The center of this round hole is separated from the slanted part by the X and Y axes.
The origin that defines the shape and dimensions of each part of the case in the direction
Based on the origin, the position and shape of the slant
Because it is set, the design of the slanted part is easy.
Optical disk drive
However, the position of the detection means for such an oblique portion can be set with high accuracy.
To improve the accuracy of detecting such slanted parts.
Make it possible. Further, according to the present invention, the thickness and
Even if there is a difference in the position of the bevel,
To share with 3.5 "FD disk cassette
Disk cassette for 3.5 "FD
Application of design and production technologies related to
To improve productivity and reduce
Simplification of design and the like can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram showing a first embodiment of an optical disk cartridge according to the present invention. FIG. 2 is a view of FIG. 1 as viewed from the back side. FIG. 3 is an explanatory diagram showing a state where the first embodiment shown in FIG. 2 is inserted into a cartridge insertion portion of the information processing apparatus. FIG. 4 is a configuration diagram showing a second embodiment of the optical disc cartridge according to the present invention. FIG. 5 is a diagram illustrating a state during insertion into the information processing apparatus according to the second embodiment illustrated in FIG. 4; FIG. 6 is a diagram showing a state of completion of insertion into the information processing apparatus according to the second embodiment shown in FIG. 4; 7 is a diagram showing a state in which a 3.5 "FD cartridge is being inserted into the information processing apparatus shown in FIGS. 5 and 6. FIG. 8 is a diagram showing a 3.5" FD cartridge. FIG. 7 is a diagram illustrating a state where insertion into the information processing apparatus illustrated in FIG. 6 is prohibited. DESCRIPTION OF THE REFERENCE NUMERALS 100 optical disk cartridge 100 '3.5 "FD cartridge 101 Shutter member 101a of optical disk cartridge 100 Force receiving portion 104 Optical disk 105 Beveled portion 112 3.5" shutter member 200 of FD cartridge 100' 200 Insert cartridge Part 201 stopper 202 first lever 203 second lever 204 spring 205 stopper

Claims (1)

(57) [Claims] Optical disc on which information is recorded or reproduced
Is formed in a substantially rectangular flat plate shape, and the optical disk rotates.
So that a part of the optical disc can be exposed to the outside.
A case having an opening, and the opening is movably mounted on the case to open and close the opening.
Force to receive the external force to open the opening
Optical disc comprising a shutter member having a portion
In the cartridge, the case is formed so as to sandwich a disk surface of the optical disk.
1, a second flat surface, and these flat plates have a first edge
And second and third edges substantially perpendicular to the first edge;
A fourth edge substantially parallel to the first edge;
2 having a round hole and a long hole arranged in a pair on the flat surface side
And a second reference hole opposite to the second flat plate surface side.
1 plate surface side from the fourth edge to the first edge
In the predetermined posture when viewed in the upright direction, the second edge is on the left side.
In addition, the third edge is located on the right side, and the case conforms to the ANSI standard of 3.5 inches.
Compared to flexible disk cartridge case
The widths along the first edge are substantially equal, and
Is formed so as to be thicker, and the shutter member extends along the first edge of the case.
And closes the opening in the third edge direction.
A closed position and the opening located in the second edge direction.
The opening of the case moves in a direction along the first edge.
And disposed at a position corresponding to the vicinity of the center of the first edge.
Is, first edge and the corner portion where the second and the edges intersect the casing
Approximately 45 minutes with respect to the first edge and the second edge.
At an angle of degrees, the first edge and the second edge
Cut off diagonally with the length of each side along the edge being about 5mm
A sloping portion is provided, and the sloping portion is
3.5 inch flexible disk specified by SI standard
Compared to the beveled part provided in the cartridge case.
And when viewed in the predetermined posture, the first edge
To the left and right opposite corners,
Is formed by the length of the pot equal angles and each side will be, force receiving portion of the shutter member, the shutter member is the
When moving between the closed position and the open position,
The third edge and the opening along the first edge of the source
With the center of the round hole among the reference holes of the case.
And on a line perpendicular to the first edge, the first
Light, characterized in that an edge and the inclined portion are bordered
Disk cartridge.