Binder and file

Abstract

A binder has a pair of first binding members and a pair of second binding members corresponding to the first binding members. When each of the fist binding members and corresponding each of the second binding members are relatively turned, tip portions of these first and second binding members are closed or opened, realizing a state where papers are bound or a state where papers are released from binding. The binder has opening means for applying a force in a direction where the tip portions of the first and second binding members are opened, and has an operation lever for relatively turning the first and second binding members against the opening means, and for retaining the tip portions at a closed position. The binder is characterized in that connection portions are provided in the tip portions The connection portions are connected to each other through temporary elastic deformation of at least either of the first binding members and the second binding members, and inhibit the opening operation of the tip portions by strengthening the connection by means of force applied by the opening means.

Description

technical field [0001] The present invention relates to a binding tool and a document file provided with an operation lever, which can be used well in offices and the like. Background technique [0002] For example, as this binding tool, as shown in Figure 15, known has the binding tool that is constituted in the following manner, promptly is provided with paired 1st binding member a, a on base e, and with these 1st binding member The paired second binding members b and b corresponding to a and a are closed or opened between the front ends a1 and b1 by the relative rotation of the first binding member a and the second binding member b respectively corresponding to each other. , to achieve the binding state or binding unbinding state for paper. In this binding tool A, it is equipped with: an opening device c, which applies a force in the direction of opening between the front ends a1, b1 of the first and second binding members a, b; and an operation lever d, which overcomes ...

AI Technical Summary

Problems solved by technology

And, only the portion of the plug T, especially the distance from the base end a2 of the binding member a to the front end a1 is larger than necessary, and when external force acts on the front end a1, b1 side, it is easy to produce elastic deformation. , so there is a tendency that the above-mentioned bad situation becomes more significant

[0008] In addition, when the binding tool A is installed on the cover body B to form the file folder F, as Figure 17 As shown, the shape of the top part T creates a useless space between the top cover B1 and the bottom cover B2, resulting in a decrease in storage efficiency and an unnecessary increase in the external dimensions of the file folder F.

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