JPH0747432B2 - Paper folding machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a paper folding machine, and more specifically, to an image forming apparatus, for example, an image forming paper on which a copied image is formed, such as a copying machine. Or, it relates to a paper folding machine that is automatically folded outward.

[Conventional technology]

Conventionally, in an image forming apparatus such as a copying machine, an original is placed on a transparent plate for placing an original, which is focused on the optical system of the original, and copying is performed. In order to save paper, a book may be opened, the entire surface of the book may be copied, and the copied image-formed paper may be folded and used in two.

Further, for a user who uses a copying machine, the maintenance cost of the copying machine is calculated in proportion to the number of times the copying is used, and thus the less frequently used, the more economical it is. In many cases, an image forming paper twice as large as the above was used as an image forming paper, and the image formed paper was folded in two and used.

Folding the image-formed paper thus copied is relatively frequent, but in order to fold this image-formed paper, the copy is taken out from the copying machine and folded by hand, so It is troublesome, time consuming, and the work efficiency is extremely poor. Therefore, the development of a more convenient paper folding device has been demanded.

FIG. 5 is a view showing a conventional example of a paper folding machine which has been made to meet such needs, and there is a paper feeding section 3 on a side of a main body 5 of the paper folding machine, and an image forming for folding is formed therein. Paper 4 is stored.

The image forming paper P is introduced by being sandwiched between the main roller 7 and the introduction roller IR which is pressed against the main roller 7 and rotated by passing through the conveyance guide G by the rotation of the paper feed roller R, and into the partition 17 inside the main body 5. Sent in.

Above the partition 17, a stopper S for stopping the leading end of the image forming paper P is provided, and the stopper S adjusts the height according to the size of the image forming paper P in advance,
You can decide the folding position.

In addition, a folding roller that rotates in pressure contact with the main roller 7 and folds the image forming paper P between the main roller 7 and the lower roller.
There is an OR, and a tray 18 is provided on the side of the OR as a tray for the folded image forming paper P.

6 and 7 explain the principle of this paper folding, and the image forming paper P whose front end Pa has been stopped by the stopper S is still formed by the introduction roller IR and the main roller 7 as shown in FIG. Also, since the rear end Pc side is fed in, the image forming paper P
The intermediate portion Pb of the image forming paper P is pushed toward the folding roller OR, and as a result, the image forming paper P rotates as shown in FIG.
And the main roller 7 to draw the image forming paper P.
The intermediate part Pb is folded into two and sent out of the main body.

[Problems to be Solved by the Invention]

Since this conventional paper folding machine has a structure in which the surface of the image forming paper P is always folded inside, the image forming paper P is turned inside out in the paper feeding section 3 in advance when it is desired to fold it with the surface outside. Must be put in.

Further, such a structure in which only the surface is folded inside is inconvenient when the image forming paper P is used by connecting it to the copying machine because the copied surface of the image forming paper P is folded inside.

It is an object of the present invention to solve the problem that such a conventional paper folding machine can only fold the surface of the image forming paper P inside.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides the following paper folding machine. That is, the present invention relates to a main roller capable of switching the rotation direction to both left and right directions, a first introduction roller for pressingly rotating the main roller to introduce an image-formed sheet between the main roller and the main roller, and A second introduction roller that rotates in the opposite direction to the first introduction roller, a partition plate that partitions the introduced image forming paper, and a first stop that stops the leading end of the introduced image forming paper at a specific position. Stopper and second
And the main surface of the stopper is rotated by pressure contact with the main roller, and the image surface of the image forming paper having the leading end stopped is folded inward with the image surface on which the image is formed.
And a second folding roller that rotates in the opposite direction to the first folding roller and folds with the image surface on which the image is formed facing outward, and either the first introducing roller or the second introducing roller. A paper folding machine provided with a switching guide for selecting one of them and feeding the image forming paper.

[Work]

In the paper folding machine having the above structure, when it is desired to fold the image surface on which the image has been formed facing inward, the switching guide is set to
The first introduction roller and the first folding roller are pressed and rotated against the main roller while the main roller is rotated in a predetermined direction while facing the first introduction roller.

When the image forming paper is guided to a portion where the first introduction roller and the main roller are in pressure contact rotation with a switching guide in a state where the surface of the image forming paper faces upward, the image forming paper is nipped by the rotation of the two rollers and the image forming paper is separated from the partition plate. The inside is pushed upward and the tip is stopped by a stopper whose height is adjusted beforehand. However, since the trailing edge of the image forming paper is still pushed by the first introducing roller and the main roller, the central portion of the image forming paper is closer to the first folding roller, and as a result, the rotating first folding is performed. The image forming paper is wound between the roller and the main roller, is folded at the center with the image surface on which the image is formed inside, and is discharged to the outside.

When it is desired to fold the image-formed image surface of the image-forming paper outward, the switching guide is directed toward the second introducing roller, and the main roller is rotated in a direction different from the predetermined direction, so that the first introducing roller is rotated. In addition, the second folding roller is rotated in pressure contact with the main roller.

When the image forming paper is guided to a portion where the second introduction roller and the main roller are in pressure contact rotation with a switching guide with the surface thereof facing upward, the image forming paper is nipped by the rotation of the two rollers, and the image forming paper of the partition plate is The tip is stopped by the second stopper whose height is adjusted by being pushed inside. However, since the trailing edge of the image forming paper is still pressed by the second introducing roller and the main roller, the central portion of the image forming paper is closer to the second folding roller, and as a result, the second rotating roller is rotated. The image forming paper is wound between the folding roller and the main roller, is folded at the center with the image surface on which the image is formed facing outward, and is discharged to the outside.

〔Example〕

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings, along with how the configuration of the present invention is embodied.

FIG. 1 shows an embodiment of the present invention, in which 1 is a desk, 2 is a copying machine which is an image forming apparatus mounted on the desk 1, and the copying machine 2 has a paper feed section 3 on one side. There is a discharge roller 4 in the vicinity of the other side surface, and the paper folding machine 5 of the present invention is attached to the side surface of the copying machine 2 on the discharge roller 4 side and is used in connection with the copying machine 2.

Reference numeral 6 in the main body 5 of the paper folding machine is a switching guide, the direction of which can be switched up and down.
The image forming paper P discharged from the sheet is guided.

Reference numeral 7 in the main body 5 is a main roller. Around the main roller 7, a first introduction roller 8, a first folding roller 9, a second introduction roller 10 and a second folding roller 11 are provided. It is installed so that it can be pressed and rotated.

When the inward folding mode of the copy surface is designated on the operation panel (not shown), the switching guide is switched upward and the main roller 7 rotates counterclockwise as shown in FIG. 2 (referred to as left rotation). The first introducing roller 8 and the first folding 9 roller, which are in pressure contact with each other, rotate in the clockwise direction (hereinafter referred to as clockwise rotation).

At this time, the second introduction roller 10 and the second folding roller 11 are not in pressure contact with the main roller 7 and do not rotate. However, in the embodiment shown in FIG. 2, the second introducing roller 10 and the second folding roller 11 do not come into pressure contact with the main roller 7, but the present invention is not limited to this. The second introduction roller 10 and the second folding roller 11 may be in constant pressure contact with the main roller 7.

Further, when the outside folding mode of the copy surface is designated by the operation panel (not shown), the switching guide is switched downward and the main roller 7 is rotated clockwise as shown in FIG.
The second roller 10 and the second folding roller that are in pressure contact with this
11 and rotate left. In this case, the first introducing roller 8 and the first folding roller 9 are not in pressure contact with the main roller 7 and do not rotate. However, in the embodiment shown in FIG. 3, the first introducing roller 8 and the first folding roller 9 do not come into pressure contact with the main roller 7 and do not rotate, but this is not necessarily the case. Alternatively, the first introduction roller 8 and the first folding roller 9 may be in constant pressure contact with the main roller 7.

The first stopper 12 and the second stopper 13 stop the front end Pa of the image forming paper P. The height of the first stopper 12 and the second stopper 13 is changed according to the size of the image forming paper P so that the image forming paper P near the intermediate portion Pb is formed. The folding position can be adjusted.

The first stopper 12 and the second stopper 13 can be interlocked by the first pulley 14, the second pulley 15 and the belt 16, and the height can be changed manually or electrically.

Further, a partition plate 17 is provided in the main body 5 and serves to guide the image forming paper P up and down for folding.

In addition, the image forming paper P after the folding processing is provided on the side of the main body 5.
A tray 18 is detachably attached as a tray for the.

FIG. 2 is a view showing a case where the copied surface is folded inward according to the present invention. The switching guide 6 faces upward and the first introducing roller 8 with the copied image surface of the image forming paper P facing upward. The image forming paper P is supplied between the main roller 7 and the main roller 7.

The main roller 7 rotates in a predetermined direction (counterclockwise in this case) at the same time when the switching guide 6 is set upward,
The image forming paper P together with the first introducing roller 8 is a partition plate 17
Send in.

When the image forming paper P comes upward in the partition plate 17 as shown in FIG. 6, the front end Pa is stopped by the first stopper 12 (see FIG. 2).

However, even if the leading edge Pa stops, the trailing edge Pc of the image forming paper P is still fed into the partition plate 17 by the rotating main roller 7 and the first introducing roller 8.

Therefore, the intermediate portion Pb of the image forming paper P bends and is pushed toward the first folding roller 9 side, and finally sandwiched between the first folding roller 9 and the main roller 7 as shown in FIG. It is folded in two with the surface on which the image is formed inside and sent out to the outside of the main body.

FIG. 3 is a diagram showing a case where the image surface on which the image is formed according to the present invention is folded outward, in which the switching guide 6 is directed downward, and the image formed surface of the image forming paper P is faced up. Supply between 10 and main roller 7.

The main roller 7 rotates in a direction different from the predetermined direction (clockwise in this case) at the same time when the switching guide 6 is set downward, and the image forming paper P is placed in the partition plate 17 together with the second introducing roller 10. Send to.

When the image forming paper P comes down in the partition plate 17, the front end Pa can be stopped by the second stopper 13.

However, even if the front end Pa is stopped, the image forming paper P will be moved by the rotating main roller 7 and the second introducing roller 10.
The rear end Pc is still fed into the partition plate 17.

Therefore, the middle portion Pb of the image forming paper P is bent and pushed toward the second folding roller 11 side, and finally the second folding roller 11 is pressed.
It is sandwiched between 11 and the main roller 7, folded in two with the surface on which the image is formed facing outward, and sent out of the main body.

FIG. 4 is a diagram showing a case where folding is not required.
The stopper 12 is flipped up at the uppermost position and the upper part of the partition plate 17 is opened. In this case, the switching guide faces upward and the main roller rotates counterclockwise.

The image forming paper P is guided into the partition plate 17 by the first introducing roller 8 and the main roller 7, and the leading end Pa thereof freely moves upward without being stopped.

When the trailing edge Pc of the image forming paper P finally enters the partition plate 17,
This rear end Pc is moved from the first introduction roller 8 side to the first folding roller 9 side by the main roller 7, and the rear end Pc of the image forming paper P is not folded, and the rear end Pc is the first folding roller 9 and the main roller. The image surface on which the image is formed by the pinching rotation with 7 is discharged downward, that is, in a face-down state onto a tray (not shown) outside the main body.

By doing so, page alignment can be automatically performed.

As described above, according to the present invention, when it is desired to fold the image-formed image surface of the image-forming paper inside with the operation panel (not shown), the switching guide 6 is switched upward, and This is possible by rotating the main roller counterclockwise.

Also, when it is desired to fold the image-formed surface outward, it is possible by switching the switching guide 6 downward and rotating the main roller to the right by also specifying the operation panel.

Further, as a method of not folding the image forming paper P in two, the switching guide 6 is rotated upward and the main roller 7 is rotated counterclockwise, and the first stopper 12 is flipped upward at the uppermost portion to partition the partition. By opening the upper part of the image forming paper P, the image forming paper P can be discharged onto the tray in a so-called face-down state with the surface on which the image is formed facing downward without folding.

〔The invention's effect〕

As described above, according to the present invention, the main roller that can switch the rotation direction to both the left and right directions, the first introduction roller that nips and introduces the image forming paper between the main roller, and the first folding roller, A partition plate for partitioning the image forming paper, a first stopper, and a switching guide are provided, and the switching guide is directed toward the first introducing roller, and at the same time, the main roller is rotated in a predetermined direction to form the image forming paper. Folding can be performed with the displayed image surface inside.

Further, a main roller capable of switching the rotation direction to both right and left directions, a second introducing roller for sandwiching the image forming paper between the main roller, a second folding roller, and a partition plate for partitioning the image forming paper. By providing a second stopper and a switching guide, the switching guide is directed to the second introducing roller, and at the same time, the main roller is rotated in a direction different from the predetermined direction, whereby an image is formed on the image forming paper. It can be folded with the image side facing outward.

Further, a main roller capable of switching the rotation direction to both left and right directions, a first introduction roller and a second introduction roller, a partition plate, a first stopper and a second stopper, and a first folding roller. In addition, since the second folding roller and the switching guide are provided, it is possible to easily fold the image-formed image surface of the image-formed paper inward or outward, as required. There is.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, FIG. 2 is a view showing a case where an image-formed surface of the image-forming paper of the present invention is folded inward, and FIG. 3 is an image-forming operation of the image-forming paper. FIG. 4 is a diagram showing a case where the folded surface is folded outward, FIG. 4 is a diagram showing a case where the image forming paper is not folded, FIG. 5 is a diagram showing a conventional example, and FIGS. 6 and 7 are explanatory views of the principle of paper folding. Is. 6 ... Switching guide, 7 ... Main roller, 8 ... First introducing roller, 9 ... First folding roller, 10 ... Second introducing roller, 11 ... Second folding roller, 12 ... ... first stopper, 13 ... second stopper, 17 ... partition plate, P ... image forming paper.

Claims (1)

[Claims] 1. A main roller capable of switching a rotation direction to both right and left directions, and a first introducing roller for pressing and rotating the main roller to sandwich an image-formed sheet between the main roller and the main roller. And a second introducing roller that rotates in the opposite direction to the first introducing roller, a partition plate that partitions the introduced image forming paper, and a stop that stops the leading end of the introduced image forming paper at a specific position. The first stopper and the second stopper and the main roller are pressed into contact with each other to be folded between the main roller and the main roller, and the image surface on which the image of the image forming paper having the leading end stopped is folded inside. The folding roller and the second folding roller that rotates in the opposite direction to the first folding roller and folds with the image surface on which the image is formed facing outward, and the first introducing roller or the first introducing roller. Has a guide switching feeding the image forming sheet by selecting one of the second introduction rollers, Kamioriki.