JP2654423B2 - Disk cartridge - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge containing an information recording disk such as a magnetic disk and an optical disk. 2. Description of the Related Art A cartridge case having a disk storage space formed therein and having a head insertion opening at a predetermined position,
An information recording disk rotatably stored in the disk storage space of the cartridge case, a shutter for opening and closing the head insertion opening by moving along the front surface of the cartridge case, and elastically biasing the shutter in a closing direction at all times; Conventionally, various proposals have been made for a disk cartridge provided with a torsion spring. [0003] By the way, conventionally, Kimiaki Jitsumi
No. 45-10063.
Disk containers have been proposed. This magnetic disk container
Window is opened at a predetermined position, and a shutter that opens and closes the window
And the slider supporting the shutter and shutter are inside the container.
It is structured so that it can be moved. [0004] By the way, this magnetic disk container is
Is placed in a cantilevered state in the container and the magnetic disk
Close to the recording surface. As a result,
The edge of the shutter is magnetically
It may hit the recording surface of the disc and damage it. When the magnetic disk container is placed,
In addition, there is a cantilever-shaped shirt under the container window.
Error, because the recording surface of the magnetic disk is
Press the shirt under the window with a pen
Or when something falls into the window, the shirt is pushed
Do not allow the edge to hit the recording surface of the magnetic disk and damage it.
These may hinder data recording / reproduction.
However, it causes errors and lowers reliability. SUMMARY OF THE INVENTION An object of the present invention is to eliminate such disadvantages of the prior art, to provide an excellent reliability and to prevent the slipper from coming off.
Is to provide a reliable disk cartridge. [0007] In order to achieve the above object, the present invention provides a cartridge case having a disk storage space formed therein and having a head insertion opening at a predetermined position;
An information recording disk rotatably stored in the disk storage space of the cartridge case; a shutter for opening and closing the head insertion opening by moving along the front surface of the cartridge case; The present invention is directed to a disk cartridge having a biasing spring. Then, inside the cartridge case,
Formed almost linearly along the front of the cartridge case
The slider is movably arranged on the slider
Is, a portion of the slider from the cartridge case
Exposed part formed near the front of the cartridge case
And the shutter is disposed outside the cartridge case.
And the shutter and the slider are integrated through the exposed portion.
It is characterized by being connected. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk cartridge according to an embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view showing a main part of a lower case side, FIG. 2 is a front view including a cross-sectional part, FIG. 3 is a side view including a cross-sectional part, FIG. 4 is a main part plan view showing a state where a shutter is opened, FIG. 5 is a development view of the cartridge case. In these figures, 50 is an upper case, 5
Reference numeral 1 denotes a lower case, which is overlapped to form a storage space for storing a disk (not shown), for example, a magnetic disk therein. As shown in FIG. 5, the upper case 50 and the lower case 51 have holes 52 and 53 at the center thereof, into which a drive shaft of a disk drive (not shown) is inserted. And a substantially rectangular head insertion port 56,
A concave portion 58, 59 is formed near the head insertion port 56, 57 on the outer surface. Reference numeral 60 denotes a shutter for opening and closing the head insertion openings 56, 57. As shown in FIG. 3, the shutter 60 has a pair of opposed flat plate portions 61, 62, and has a generally U-shaped basic sectional shape. The flat portions 61 and 62 are slidably mounted on the upper and lower cases 50 and 51 and the concave portions 58 and 59 of the lower cases 50 and 51 are mounted. Shutter 60
1, as shown in FIG.
A tongue 63 is provided at the upper, lower, left and right portions located at 51a. Reference numeral 64 denotes the front surfaces 50a, 5 of the cases 50, 51.
A front wall 90 of the cases 50 and 51 and a front wall 90 thereof;
And riser portions 81R, 81L protruding from the front and left sides of the head insertion openings 56, 57, and are accommodated in slider guide grooves 65, 66 extending substantially linearly.
ing. And, as shown in FIG.
Exposure to expose a part of the slider 64 to a part of the face wall 90
A part 95 is formed.
The shutter 60 is mounted on the lid 64. Shutter 6
The basic shape of the cross section of the portion where 0 is mounted is a T-shape having a projecting portion 67 protruding in the vertical direction, and the basic shape of the cross section of the other portions is rectangular. As shown in FIG. 1, a step 68 is provided on the right side. As shown in FIG. 2, the step 68 can be engaged with a step 69 formed in the slider guide groove 66 of the lower case 51. I have. The shutter 60 is provided with the slider 64 in the case 5
The shutters 60 are mounted in the state where they are housed in the slider guide grooves 65, 66. In this case, the protrusions 67 of the slider 64 are moved over the flat portions 61, 62 of the shutter 60, and the recesses 58 of the cases 50, 51. , 59, and when the tongue 63 moves over the protrusion 67, the mounting is completed. At this time, the tip end surface of the tongue piece 63 comes into contact with the protruding portion 67, and the shutter 60 is prevented from coming off. For example, as shown in FIG. 1, the length L1 of the slider 64 in the shutter movement direction is designed to be sufficiently longer than the width L2 of the shutter 60 in the shutter movement direction.
(In the present embodiment, L1 is about four times L2). Reference numeral 70 denotes a lever as a direction changing member which is disposed in a dead space at the front corner of the lower case 51 and interlocks with the shutter 60. For example, the lever is disposed on the lower case 51 side.
One end 71 is pivotally connected to an end 73 of the slider 64 near the step 68 by a pin 72, and the other end 74 is inserted into the case 51 by the side surface 75 of the lower case 51. An operation portion 77 is provided so as to prevent the lever 70 from being prevented, and a lever 78 has a projection 78 at the center. Numeral 79 denotes a spring whose body is held by a projection 78 of a lever 70, one end of which is engaged with the lever 70, and the other end of which is engaged with a projection 80 provided on the lower case 51.
0 floats with a certain distance between the projection 80 and the projection 78,
The shutter 60 is always urged in the closing direction (H direction) via the slider 46, and the other end of the lever 70 (the operating portion 77) is always urged to abut on the side surface 75 of the lower case 51 to move. doing. The rising portion 81 formed in the groove 66 of the lower case 51 has a lower portion 82 at a portion located on the side of the end portion 73 of the slider 64, and the end portion 71 of the lever 70.
Is connected to the end 73 of the slider 64 beyond this portion 82. 1 and 4, reference numeral 83 denotes a guide member provided in the disk drive, and reference numeral 84 denotes a guide member.
Is formed by cutting and raising a part of the operating portion 7 of the lever 70.
7 are engaging members. A concave portion 91 extending in the insertion direction A of the disk cartridge is formed on the right side surface of the lower case 51 in the right side of the drawing, and the operating portion 77 of the lever 70 faces the concave portion 91. In this embodiment, the slider 64, the lever 70, the spring 79, and the like are incorporated in the lower case 51, a disk is housed in the concave portion 55 of the lower case 51, the upper case 50 is combined with the lower case 51, and the shutter 60 is mounted. Then, the upper case 50 and the lower case 51 are fastened and integrated with screws or the like. When the disc cartridge is not used, the step 68 of the slider 64 is moved by the urging force of the spring 79 to the step 69 of the lower case 51 via the lever 70 as shown in FIG.
, And the shutter 60 connected to the slider 64 closes the head insertion ports 56 and 57. In this state, when the disc cartridge is inserted along the guide member 83 of the disc drive in the direction of arrow A in FIG. Subsequently, when the disc cartridge is pushed in, the lever 70 moves in the direction of arrow B against the force of the spring, whereby the slider 64 slides in the direction of arrow C, and the shutter 60 also slides in the direction of arrow D. When the insertion of the disk cartridge is completed, the head insertion ports 56 and 57 are opened as shown in FIG. Even in this open state, the slider 64 is engaged with the front wall 90 and the left and right rising portions 81R and 81L. Then, the magnetic head enters the disk cartridge through the head insertion port 56 or the head insertion port 57 and comes into contact with the magnetic disk, so that desired recording / reproduction is performed. When the disk cartridge is moved in the direction E in FIG.
The operation unit 77 engaged with the actuator 4 starts moving along the projections 76 and the side surfaces 75 of the cases 50 and 51 by the force of the spring 79, and the lever 70 slides in the arrow F direction and the slider 64 slides in the arrow G direction. Then, the shutter 60 moves in the direction of arrow H, and the head insertion ports 56 and 57 are closed. In this embodiment, when assembling, the slider 64, the lever 70, the spring 79, and the like are mounted on the lower case 51 and sent to the next assembling step to store the disk.
The upper case 50 is overlaid, etc.
4 does not need to be flexible because it performs a linear sliding operation. Further, the locking member 84 of the disk drive can be provided at a position sufficiently distant from the magnetic head device, so that restrictions on the arrangement of parts are relaxed and the structure of the disk drive is simplified. As described above, according to the present invention, a disk storage space is formed inside and a cartridge case having a head insertion port at a predetermined position, and the disk case is rotatably stored in the disk storage space of the cartridge case. A disc cartridge comprising: an information recording disc, a shutter that opens and closes the head insertion opening by moving along the front surface of the cartridge case, and a spring that always elastically biases the shutter in a closing direction. The cartridge case
Inside the cartridge and along the front of the cartridge case
Slider moves to linear slider guide
Part of the slider,
The exposed part exposed from the cartridge case is in front of the cartridge case
The shutter is formed near the surface, and the shutter is
And a shutter and a slide through the exposure part.
The ferrules are characterized in that the ferrules are integrally connected . According to the present invention, as described above, the shutter is a cart.
The shutter and the information recording disc are located outside the ridge case.
The cartridge case is interposed between the
Shutter directly contacts information recording disc due to movement or external force
Never do. So, like the ones proposed previously,
The recording surface of the information recording disk is damaged by the edge of the shutter
Does not occur. In addition, cartridge case
The slider is inserted into the inner slider guide, and
The lider and shutter pass through the exposed part of the cartridge case
Slider, so that the slider
Performs both functions of stopping. So shutter is cart
It is slidably arranged outside the ridge case, for example,
When the cartridge is dropped to the shutter
Even if a shock is applied, the shutter will be released from the cartridge case.
Don't worry about getting out. Because of this, it is highly reliable,
In addition, the disc cartridge ensures that the shirt
Can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a main part on a lower case side of a disk cartridge according to an embodiment of the present invention. FIG. 2 is a front view including a cross section of the disk cartridge. FIG. 3 is a side view including a cross section of the disk cartridge. FIG. 4 is a plan view showing a main part of a lower case side showing a state where a shutter of the disk cartridge is opened. FIG. 5 is an expanded view of an upper case and a lower case of the disk cartridge. DESCRIPTION OF SYMBOLS 50 Upper case 51 Lower case 54, 55 Disk storage recess 56, 57 Head insertion opening 60 Shutter 61, 62 Flat plate 64 Slider 65, 66 Slider guide groove 67 Projection 79 Spring 95 Exposed part

Claims (1)

(57) [Claims] A cartridge case having a disk storage space formed therein and having a head insertion opening at a predetermined position, an information recording disk rotatably stored in the disk storage space of the cartridge case, in a disk cartridge comprising a shutter for opening and closing the head insertion opening, and a spring for elastically urging the shutter always in the closed direction by moving along the front surface of the cartridge case, and inside of the cartridge case Cartridge case
Slider guide formed almost linearly along the front of the slider
A slider is movably disposed on the door portion, and a part of the slider is exposed from the cartridge case.
Exposed part is formed near the front of the cartridge case.
The shutter is arranged outside the cartridge case,
The shutter and the slider are integrally connected through the exposed portion.
A disc cartridge characterized by being used .