JPH0519178U - Magnetic shield case - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a magnetic shield case with high magnetic shield effect and good portability. [Structure] As the lining 14, Ni / having a high magnetic shielding property is used.
Cu metal coated nylon is used and outer surface 16
The magnetic disk 11 housed in the protective case 12 is formed by forming a magnetic shield housing part made of velvet
The magnetic disk 11 is demagnetized. The obtained magnetic shield case 13 is lightweight and excellent in portability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a magnetic shield case, and is specially designed to improve the magnetic shield and portability.

[0002]

[Prior Art]

 A magnetic recording medium generally called a floppy disk is composed of a magnetic sheet for recording character information or still image information and a synthetic resin shell part for protecting the magnetic sheet. The seat is rotatably stored. The magnetic sheet is made into a permanent magnet by a writing head (recording head) to record information.

[0003]

[Problems to be solved by the device]

 By the way, although the magnetic sheet of the above magnetic recording medium is recorded by making it a permanent magnet, there is a problem in that it is magnetized when placed in the vicinity of an electromagnetic wave generating device such as a TV. For this reason, in the past, magnetically-shielding treatment was performed using a resin hard case with permanent antistatic treatment, but the magnetic shielding effect such as the gap between the entrance and exit of the magnetic recording medium and the corner joints was insufficient. There is a problem. In addition, since it is a hard case, it has a large volume, which makes it bulky when it is stored in a bag or the like, and has poor portability.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a magnetic shield case having improved magnetic shield properties and good portability.

[0005]

[Means for Solving the Problems]

 The structure of the magnetic shield case according to the present invention which achieves the above object is a case for storing a magnetic recording medium, characterized in that the magnetic shield storing portion is formed of a metal-coated cloth having an electromagnetic wave shielding property. ..

[0006]

[Action]

 In the above structure, the magnetic recording medium is magnetically shielded by being housed in the cloth-made magnetically shielded housing. In addition, since the case is made of cloth, it is light and highly flexible and can be carried without being bulky.

[0007]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view of a magnetic shield case according to this embodiment.

As shown in FIG. 1A, a magnetic recording medium (hereinafter referred to as “magnetic disk”) 11 includes a magnetic sheet (not shown) inside and a synthetic resin shell for protecting the magnetic sheet. And is housed in a generally transparent acrylic protective case 12.

As shown in FIG. 1B, the magnetic disk 11 housed in the protective case 12 is housed in a magnetic shield case 13 integrated with a magnetic shield housing portion to be magnetically shielded.

In this magnetic shield case 13, a metal-coated cloth having an electromagnetic wave shielding property is used as the lining 14 to form a magnetic shield housing portion. Incidentally, reference numeral 15 in the drawing denotes a hook-and-loop fastener. Here, the metal-coated cloth means, for example, a cloth (woven cloth or non-woven cloth) coated with one or more kinds of metal selected from gold, silver, copper, tin, nickel, cobalt, palladium or iridium. It will be done.

In this embodiment, a cloth made of polyamide fiber (nylon) coated with Ni / Cu is used as the lining 14, and a cloth cover (bag) is used. Have

As the outer material 16 of the magnetic shield case 13 in this embodiment, a fashionable material such as a velvet material is used.

Since the magnetic shield case 13 according to this embodiment uses a velvet cloth for the outer material 16 and a metal-coated cloth having an electromagnetic wave shielding property as the lining 14 thereof, it has a high magnetic shield effect, is light, and is flexible. It is rich and portable, and can be used easily without being bulky even if it is put in a bag etc. A partition may be provided in the storage section.

Next, another embodiment of the present invention will be described.

FIG. 2 is a schematic view of another embodiment. As shown in the figure, the magnetic shield case 21 according to the present embodiment is provided with two magnetic shield storage portions 22 with lids 22a for storing the magnetic disks 11 stored in the protection case 12 inside. Then, the inner cloth including the magnetic shield housing portion 22 is made of a metal coated cloth having an electromagnetic wave shielding property.

On the other hand, as the outer material 23 of the magnetic shield case 21, a highly durable cloth made of a reinforcing fiber such as polyamide is used. In the figure, reference numerals 24 and 25 denote hook-and-loop fasteners. Since the magnetic shield case 21 according to the present embodiment uses a metal-coated cloth having a high magnetic shield property inside, it has a high magnetic shield effect, is lightweight, is flexible, and has good portability.

In the above-described embodiment, a metal-coated cloth having a high magnetic shielding property is used for the lining of the cloth or the inside of the cloth case in order to provide a lightweight and flexible magnetic shield case. A storage section made of metal-coated cloth may be formed inside or outside the box or the hard case. It may also be used as a cover material for the entrance of the magnetic disk to improve the conventional magnetic shield effect of the entrance and exit.

[0019]

[Effect of the device]

 As described above with reference to the embodiments, since the magnetic shield case according to the present invention is formed by using the metal-coated cloth having the electromagnetic wave shielding property as the storage portion of the magnetic recording medium, the magnetic shield case is light, flexible and portable. Can be used easily without being bulky even if it is put in a bag or the like.

[Brief description of drawings]

FIG. 1 is a schematic view of a magnetic shield case according to an embodiment of the present invention.

FIG. 2 is a schematic view of a magnetic shield case according to another embodiment.

[Explanation of symbols]

 11 Magnetic Disk 12 Protective Case 13 Magnetic Shield Case 14 Lining 15 Surface Fastener 16 Outer Surface 21 Magnetic Shield Case 22 Storage Section

Claims (2)

[Scope of utility model registration request] 1. A magnetic-shielding case for accommodating a magnetic recording medium, characterized in that the magnetic shield accommodating portion is formed of a metal-coated cloth having electromagnetic wave shielding properties. 2. The magnetic shield case according to claim 1, wherein the metal of the metal-coated cloth having electromagnetic wave shielding properties is gold,
A magnetic shield case, which is one or more selected from silver, copper, tin, nickel, cobalt, palladium or iridium.