JPH058779U - Disk Cartridge - Google Patents

Abstract

(57) [Summary] [Purpose] A disk-shaped medium that rotates in a case is safely maintained by a liner, which produces less fiber debris, is low in cost, has good quality, and enhances reliability. A liner 4, which is interposed in contact with a disk-shaped medium in a case, includes the head insertion hole 3 and a lifter member 5, and is formed to have a size of about ½ of the total area of the disk 1. Since the liner is provided only in the portion of the disc that comes into contact with the medium, the area of the liner is small, the cost is low, the generation of fiber waste is significantly reduced, and problems such as dropout are small.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is applicable to magnetic disks, floppy disks, hard disks, and Freely rotate disk-shaped media such as spinning disks, optical disks, and magneto-optical disks The present invention relates to a disc cartridge housed in a case.

[0002]

[Prior art]

  A floppy disk generally used for digital data storage devices and video equipment. Discs, compact digital or video digital will be trashed when handling. It is stored rotatably in the case so that it does not get scratched or scratched. A sheet-like liner is formed with an elastic member that is a lifter that can be urged in one direction provided on the inner surface. It is configured to be attached to the inner surface of the case so as to come into contact with the digital surface.

[0003]

[Problems to be solved by the device]

  However, in the conventional disk cartridge, as shown in FIG. Except for, the doughnut-shaped line is formed on almost the entire surface of the part that faces the media disk. Since the liner a is attached to the case b, the area of the liner a is large and the cost is high. In addition, since the liner is likely to generate fiber waste, the larger the area, the more fiber waste will be generated. It is easy to cause dropout, etc., which adversely affects recording and reproduction and causes large variations in quality. However, there is a problem that reliability is also lowered.

[0004]   The present invention seeks to eliminate these conventional drawbacks with precision, and it uses a rotating digital The talous medium can be safely maintained and managed by the liner, and damage to the digital surface is also accurately prevented. With less generation of fiber debris and sufficient cleaning power, good quality and durability Offering a low-priced disk cartridge that can significantly improve reliability and reliability The purpose is to do.

[0005]

[Means for Solving the Problems]   According to the present invention, the case 2 is rotatably accommodated on the inner surface of the case 2, The sheet-like liner 4 faces the disc 1 except for the head insertion hole 3 formed in And the liner 4 on the surface of the disc 1 so that the liner 4 is in contact with the surface of the disc 1. In a disc cartridge including a lifter member 5 for pressing the disc 1, The liner 4 includes the head insertion hole 3 and the lifter member 5, and the disk 1 The disk cart, which is formed to have a size of about 1/2 of the entire area of It is Ridge.

[0006]

[Action]

  In the disc cartridge of the present invention, the disc cartridge 1 in the case 2 is It is interposed between the pair of liners 4 and 4, and is lifted by the lifter member 5 while being held. The recording surface of the disc 1 is retained without damage and sufficient cleaning power is obtained. It produces less fiber waste and can be used safely, up to the outermost circumference of the disc 1. It is possible to record and reproduce easily, and reliability and accuracy can be improved sufficiently. used

[0007]

【Example】

  FIG. 1 shows an embodiment in which the present invention is applied to a floppy disk cartridge. To explain, a disk-shaped disk 1 that serves as a recording medium and a rotatable disk 1 The case 2 to be housed and the recording / playback head insertion hole 3 formed in the case 2 Except for the inner surface of the case, the liner 4 is attached to face the disc 1 and the disc is attached. It is arranged so as to come into contact with the surface of Ku 1.   The liner 4 may be, for example, both sides of the head insertion hole 3 and an elastic riff. The size of the disk 1 including approximately a part of the disk member 5 is about 1/2 of the total area of the disk 1. The liner 4 made is used. That is, it is divided on both sides of the head insertion hole 3. It is composed of separated sheet pieces, for example, one side of the head insertion hole 3 and a lifter member. The sheet piece which is straddled between the sheet and the sheet 5 and the other side of the head insertion hole 3 are attached in a substantially fan shape. It is a type that consists of a sheet piece and the molding process of the liner 4 is simple and inexpensive I am doing it.

[0008]   As shown in FIG. 2, the liner 4 includes both side portions of the head insertion hole 3. The liner 4 is a continuous type, that is, the liner 4 is inserted into the head. A single sheet having a cutout 6 for opening the hole 3 and a set of cases 2. It is also possible to adopt a form that can simplify the work of incorporation.

[0009]

[Effect of device]

  In the present invention, the liner attached to the inner surface of the case facing the disk is The size of the disk including the insertion hole and the lifter member is about 1/2 of the total area of the disk. By being made, the liner is only on the part of the disc that contacts the media. Since the liner area is small and the cost is low, the generation of fiber waste is significantly reduced. There are few problems such as dropouts, and the pressing force of the liner against the disc is long. It is used without deterioration over a period of time, and has a bad cleaning effect and head touch. It can be used in a stable state without being damaged, and the disk surface is damaged by the lifter. To maintain good quality, greatly improve reliability, and increase product value It is easy to manufacture, contributes to cost reduction and is practically useful. It is used without any fear of adverse effects.

[Brief description of drawings]

FIG. 1 is a plan view of a lower case showing an embodiment of the present invention.

FIG. 2 is a plan view of a lower case according to another embodiment of the present invention.

FIG. 3 is a plan view of a lower case of a conventional example.

[Explanation of symbols]

1 disc 2 cases 3 head insertion hole 4 liner 5 Lifter member 6 notches

Claims (3)

[Scope of utility model registration request] 1. A sheet-like liner 4 is attached to the inner surface of a case 2 for rotatably accommodating a disk 1 so as to face the disk 1 except for a head insertion hole 3 formed in the case 2, and A disc cartridge comprising a lifter member 5 for pressing the liner 4 against the disc 1 so that the liner 4 contacts the surface of the disc 1.
A disk cartridge including the head insertion hole 3 and the lifter member 5 is formed to have a size of about ½ of the total area of the disk 1. 2. The liner 4 includes the head insertion hole 3
2. The disk cartridge according to claim 1, wherein the disk cartridge is composed of sheet pieces which are separated on both sides of the sheet. 3. The disc cartridge according to claim 1, wherein the liner 4 is a single sheet having a cutout 6 for opening the head insertion hole 3.