A bellows file with excellent durability and convenience.

Abstract

This product provides a bellows-type file with improved durability and ease of use through changes to the material and fasteners of the bellows-type file. [Solution] This invention is a paper accordion file with excellent durability and convenience. Durability is improved by changing the material of the parts that are frequently used and subjected to high movement during use. A milk cap is used for the fastener of the main body, and an elastic cord is used as the fastening string, improving the ease of opening and closing, preventing stored items from falling out, and making it useful for a wide range of age groups for a long period of time.

Description

Technical Field

[0001] The present invention relates to a bellows file with improved durability and convenience in use.

Background Art

[0002] A general bellows file is made of paper, and there are problems such as tearing and soiling due to increased usage frequency. Even when the entire file is fastened with a fastener, it may come off. ※ A bellows file is mainly a file for storing paper items such as documents, tickets, and receipts. The material is made entirely of paper, including the outer material and the internal bellows part, and double-sided tape is often used for the joints. In addition, those sold in general retail stores such as 100-yen shops are files created for the purpose of storing documents and are made of plastic or vinyl. However, the joints are formed by heat-bonding, and over time, damage and peeling occur, and most of them do not have fasteners.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Non-Patent Document 1

[0004] None

Summary of the Invention

Problems to be Solved by the Invention

[0005] Paper files deteriorate significantly in areas that are frequently used and move around. Furthermore, the extensive use of double-sided tape to attach the accordion-style file section causes discoloration over time, and dirt accumulates on areas that are touched with bare hands. In addition, common fasteners (such as plastic buttons) that secure the entire file require many opening and closing actions when inserting and removing contents, and they are prone to coming undone, resulting in a laborious and mental burden when tidying up spilled contents. Therefore, this invention aims to solve the aforementioned shortcomings by changing materials and modifying the structure of the fasteners. [Means for solving the problem]

[0006] This invention solves the problems associated with conventional fasteners by using a waterproof, stain-resistant, and highly durable material for the front of the file, a thick material for the accordion-style file section, and enhanced durability through machine stitching to prevent discoloration and damage, as well as using a larger-than-usual milk cap and a retractable elastic cord for the fasteners. [Effects of the Invention]

[0007] As described above, the bellows file of this invention has high durability even with increased frequency of use, and can be used for a long period of time. Moreover, it uses a milk cap that is larger than a typical fastener and has a simple structure that hooks with an elastic cord, making it easy to open and close for users of all ages, and the elastic cord helps to prevent the contents from falling out. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view showing an embodiment of the bellows file of the present invention. [Figure 2] These are side views of the bellows file of this invention when opened and when bound with a rubber band. [Modes for carrying out the invention]

[0009] To address issues such as tears in moving parts and dirt on contact surfaces due to increased usage, the file's outer material has been changed, and cardboard has been placed inside and wrapped with the outer material. Furthermore, the accordion-style file section uses a thicker material, and the frequently touched areas and adhesive parts are machine-stitched to improve durability and stain resistance. In addition, to prevent the fastener from coming undone and the contents from falling out, elastic cords secured with eyelets in two places on the back of the file are hooked from the bottom of a large milk cap attached to the front of the file, making opening and closing easier and preventing the contents from falling out. [Examples]

[0010] An embodiment will be described below with reference to the attached drawings. 1 is the bellows file body with a surface made of a material that contributes to improved durability, 2 is the bellows file with improved durability due to the use of a thicker material, 3 is the machine stitching that improves the durability of the adhesive part of 2, 4 is the elastic cord that fastens the file body, and 5 is the milk cap that serves as a fastener for securing the elastic cord. By pulling 4 and fastening it to 5, the contents are prevented from falling out and the file can be easily opened and closed. [Industrial applicability]

[0011] Nothing in particular. [Explanation of symbols]

[0012] 1. Front of the accordion file body (DuPont, USA: Tyvek) 2. Accordion file (tracing paper) 3. Sewing by sewing machine 4 elastic cord 5. Fastener (milk cap)

Claims

1. The outer material of the accordion-style file uses Tyvek®, a high-density polyethylene fiber nonwoven fabric developed by DuPont in the United States, and by laminating it to cardboard, it combines stain resistance and durability.

2. The file material uses thick tracing paper instead of ordinary paper, and the joints are joined not only with double-sided tape but also with machine stitching, improving performance as in the previous model.

3. This accordion-style file features a milk cap as a fastener on the front of the file and uses an elastic cord as a tie, improving the overall ease of opening and closing the file and preventing the tie from falling off.

Images