JPS5935436Y2 - sheet storage tool - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a binding tool such as a calendar, a loose leaf, etc., which allows a sheet 1-A having a plurality of binding holes a at the edge to be easily attached and detached.

Conventionally, there have been many types of binding tools of this type, such as those made of metal and synthetic resin, but many of them were expensive and had complicated operations for attaching and removing the sheet.

The present invention solves the conventional drawbacks, and as shown in the illustrated example, there is a base 1, a plurality of parallel semi-annular tongues 2 integrally formed to protrude along the long plane of the base 1, and each half-annular tongue. A semi-annular opening/closing tongue 4 connected to the tip of the tongue 2 via a thin connecting hinge 3, and a mutual engager 5.6 provided between the free end of the opening/closing tongue 4 and the base 1; The gist is a binding tool that is made by injection processing of a synthetic resin such as polypropylene, polyethylene, or polyvinyl chloride.

The mutual engagers 5 and 6 are composed of a protrusion 6 and an engagement hole 5 that fit relatively tightly into each other as in the example shown in FIGS. The free end is formed into a hook shape, and the hook 5 is hooked onto the edge 6 of the base 1 by slightly bending the semi-annular tongue piece 4 against the elasticity, and is engaged by the return elasticity of the tongue piece 4. Various configurations are conceivable, such as holding the .

To stow the sheets A, the mutual engagers 5 and 6 are disengaged, and the individual opening/closing tongues 4 are connected thinly and opened centering on the hinge part 3 (as shown by chain lines in Figures 2 and 3), and each opening tongue is opened. Pass piece 4 through the corresponding binding hole a of sheet A.

Then, when the opening tongue pieces 4 through which they have been passed are individually rotated in the closing direction around the hinge part 3 to connect the engagers 5 and 6, the opening/closing tongue pieces 4 and the tongue piece 2 integrated on the base 1 side are formed. A closed ring is formed and sheet A is stowed.

To remove the seat A, the above-mentioned engager 5 of each opening/closing tongue piece 4,
The sheet A can be easily removed by releasing the engagement by the tongues 6 and opening the tongues 4.

Since the present invention is as described above, it is extremely easy to insert and remove the sheet A.

It has a simple structure and can be manufactured in one shot using synthetic resin injection processing without any post-processing.In this case, by manufacturing a long item and cutting it to the desired length, it can easily be manufactured to various standard lengths. Since it can be obtained, it can be mass-produced at an extremely low cost.

Furthermore, when the opening/closing tongue piece 4 is closed, a completely closed ring is formed with the other tongue piece 2, so if the thickness of the base strip 1 is made thin, the bound sheet A can be turned over approximately 360 degrees around the binding tool. be able to.

By using polypropylene, which has strong repeated bending properties, as the material resin, it is possible to obtain a highly durable material that does not easily cause damage to the hinge part 3 even after repeated opening and closing. Effective and suitable as a spelling tool.

[Brief explanation of the drawing]

The drawings show one embodiment of the present binding tool, and Figure 1 is a front view of the sheet binding state, and Figure 2 is a view of Figure 1 m-'II.
Figure 3 is a cross-sectional view of a modified example. A is the sheet, a is the binding hole.

Claims (1)

[Scope of utility model registration request] A base 1, a plurality of parallel semi-annular tongues 2 integrally formed to protrude along the length of the base, and a thin connecting hinge part 3 connected to the tip of each semi-annular tongue 2. A sheet binding tool made of synthetic resin, comprising a semi-annular opening/closing tongue piece 4 and mutual engagers 5, 6 provided on the free end of the opening/closing tongue piece 4 and the base 1.