JPH0721468Y2 - Paper folding device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to office equipment, and more particularly to a paper folding device that facilitates paper folding work.

[0002]

2. Description of the Related Art For example, when enclosing a guide in an envelope,
It is necessary to fold the guide in two or three and put it in the envelope. However, when I try to fold many sheets of paper with my bare hands,
There is a risk that your hands will be scratched and it will hurt, or you will be injured by cutting your hands with the edges of the paper. However, since there is no special tool used for folding paper, the clerk folds the paper by pressing a cup, bottle, paperweight, etc. into the fold.

[0003]

However, none of them is a dedicated tool, so it is difficult to use, and it takes time to work and the paper cannot be folded cleanly, resulting in poor work efficiency. It also becomes a problem of increasing the burden on the clerks.

[0004]

[Means for Solving the Problem] The present invention solves the above technical problems by providing a dedicated device convenient for paper folding work, shortens the working time, and realizes a clean paper folding finish. The purpose is to improve work efficiency and reduce the burden on clerks. In order to achieve such an object, the base ends of the upper body and the lower body which face each other are openably and closably connected by a hinge portion, and rollers having an axial center in the direction from the base end to the tip are respectively provided inside the upper body and the lower body. We devised a paper folding device. Further, in the above, at least one of the rollers is elastically supported, and a projection is provided on the base end side of at least one of the upper main body and the lower main body so as to abut against the bent front end of the paper. Further, at least one of the rollers is a conical roller. Further, a plurality of rollers are provided on at least one of the upper main body and the lower main body, and a guide body for guiding the bent front end of the paper is attached to the side of at least one of the upper main body and the lower main body.

[0005]

With the rollers provided inside the upper body and the lower body, the paper is pulled laterally while pressing the fold portion of the paper to rotate the roller to form the fold.

[0006]

Embodiments of the present invention will be described below. FIG. 1 shows an example of a paper folding device. An upper main body 1 and a lower main body 2 are provided so as to face each other, and their base ends are rotatably connected by a shaft 4 of a hinge portion 3. These are large enough to hold with one hand. Inside the upper body 1 and the lower body 2, rollers 5 and 6 are provided.
Are provided respectively. The axes 7 and 8 of the rollers 5 and 6 are directed from the base ends of the main bodies 1 and 2 to the front ends (the main body longitudinal direction).
And the shaft cores 7 and 8 are supported by bearings 9 at both ends. FIG. 4 is a front view of the bearing 9,
As shown in the drawing, a vertically long hole 10 is bored in the bearing 9, and the shaft cores 7 and 8 are fitted therein so as to be vertically slidable. Also,
The springs 5 arranged to elastically support the shaft cores 7 and 8 urge the rollers 5 and 6 toward the inside of the main bodies 1 and 2, respectively. FIG. 5 shows the protrusion 12 provided on the lower body 2. As shown in FIG. 6, when folding the paper a, it is convenient to bring the folding tip a ′ into contact and guide it. Further, as shown in FIG. 7, the lower end of the protrusion 12 is supported by the spring 13 inside the lower body 2, and the protrusion 12 is pushed by the upper body 1 and retracted when the upper body 1 and the lower body 2 are closed. .

In the paper folding device of the present invention as described above, the upper main body 1 and the lower main body 2 are once opened around the hinge portion 3 and the paper a is inserted between them, and as shown in FIG. When the folds of the paper a are clamped by the rollers 5 and 6 provided inside the lower main body 2 and the side of the paper a is pulled to the side a ″, the rollers 5 and 6 rotate and the paper a moves laterally smoothly. , A fold line a'can be formed. In this case, as described with reference to FIG.
When 6 is configured to be biased toward the inside of the main bodies 1 and 2,
The rollers 5 and 6 are appropriately inclined so that the paper a is
Since the pressure can be clamped, the crease can be formed more firmly. Further, as described with reference to FIG. 6, when the bent tip a ′ is brought into contact with and guided by the projection 12 provided on the lower main body 2, the paper a is not displaced and can be smoothly pulled out sideways.

Although one embodiment of the present invention has been described, it goes without saying that the present invention is not limited to the above. For example, the spring 11 described in FIG. Alternatively, it may be provided on either one, and only one of the rollers 5 and 6 may be elastically supported. Further, the protrusion 12 of FIG. 5 may be provided on the upper body 1 or both the upper body 1 and the lower body 2. Further, as described above, when the upper and lower rollers are arranged one by one, it is as shown in FIG. 9 when viewed from the front, and the paper a is pinched at one place along the generatrixes of the rollers 5 and 6. Although it can be bent, if two rollers 6a and 6b are provided on the lower side as shown in FIG. 10, the paper a is pinched twice between the roller 5 and the roller 6a and between the roller 5 and the roller 6b. Therefore, there is an advantage that the fold line can be formed more reliably and firmly. The number of rollers is not limited to two and may be increased. Further, a plurality of upper rollers 5 may be provided, and further, both upper and lower rollers 5 and 6 may be provided. In addition, as shown in FIG. 11, if a guide body 14 is attached to the main body 1 or 2, and the bending tip a ′ of the paper a is guided by using this, the work becomes easy. Further, as shown in the figure, when the guide body 14 is rotated to be folded to the side of the main body, there is no problem of being bulky when the paper folding device is not used. Further, as shown in FIG. 12, the upper and lower rollers may be composed of conical rollers 5 and 6, and such a conical roller may be used for only one of the upper and lower rollers.

[0009]

[Effects of the Invention] In any case, according to the paper folding device of the present invention, the folds are formed only by pulling the paper sideways while pressing the folds of the paper with the rollers provided inside the upper body and the lower body. Since it is possible to perform the paper folding work very easily, it is possible to shorten the working time and realize a beautiful paper folding finish, and the burden on the clerk is significantly reduced. In addition, since the roller is elastically supported, the roller can be appropriately inclined and the paper can be pressed against the entire surface of the roller, so that the fold line can be formed more firmly. Further, when the bent tip is guided by the projection of the paper provided on at least one of the upper and lower bodies, there is a feature that the paper can be smoothly pulled out sideways without slipping. By providing a plurality of rollers on at least one of the upper and lower bodies, the paper is pinched twice or more, which is advantageous in that the folds can be formed more reliably and firmly. In addition, if a guide body is attached to the side of the main body, the guide tip can be used to guide the folded front end of the paper, which facilitates the work. A conical roller can be used as the roller.

[Brief description of drawings]

FIG. 1 Side view of a paper folding device

[Fig. 2] Inner view of the upper body

[Fig. 3] Inner view of the lower body

[Figure 4] Front view of the bearing

FIG. 5 is a side view of a paper folding device provided with protrusions.

FIG. 6 is an explanatory view of a state in which a projection is used to guide the folding tip of paper.

FIG. 7 is a sectional view taken along the line AA of FIG. 6A.

FIG. 8 is an explanatory diagram of a paper folding operation using the paper folding device of the present invention.

FIG. 9 is an explanatory diagram of a state where paper is pinched by a pair of upper and lower rollers.

FIG. 10 is an explanatory view of a state where paper is pinched between a plurality of rollers provided on the lower side.

FIG. 11 is a side view of the paper folding device in which the guide body is attached to the main body.

FIG. 12 is a vertical cross-sectional view of a paper folding device in which upper and lower rollers are conical rollers.

[Explanation of symbols]

 1 Upper body 2 Lower body 3 Hinge part 5 Roller 6 Roller 7 Roller axis 8 Roller axis

Claims (6)

[Scope of utility model registration request] 1. A roller having an axial center in the direction from the base end to the tip of the upper main body and the lower main body, the base ends of the upper main body and the lower main body facing each other being openably and closably connected by a hinge portion. A paper folding device provided. 2. The elastically supporting at least one of the rollers provided inside the upper body and the lower body.
Paper folding device. 3. The paper folding device according to claim 1 or 2, wherein a projection for contacting a folding front end of the paper is provided on at least one base end side of the upper main body and the lower main body. 4. A conical roller as at least one of the rollers provided inside the upper body and the lower body.
A paper folding device according to any one of 3 to 3. 5. The paper folding device according to claim 1, wherein a plurality of rollers are provided on at least one of the upper body and the lower body. 6. The paper folding device according to claim 1, wherein a guide body for guiding the folding tip of the paper is attached to at least one side of the upper body and the lower body.