JPS5913631Y2 - Guide device for copy paper feeding in electrostatic copying machines - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a guide device for feeding copy paper in an electrostatic copying machine, and in particular, a table for guiding fed copy paper;
A groove is provided on the table and controls both sides of the copy paper.
and a second regulation guide plate, and relates to a copy paper feeding guide device in an electrostatic copying machine in which one side edge of the copy paper fed along the first regulation guide plate is used as a copying reference. It is something.

2. Description of the Related Art Conventionally, an electrostatic copying machine is known in which copy paper is fed and conveyed in accordance with one edge of the width of a document as a reference.

In the electrostatic copying machine of the above type, a separating means such as a separating claw or a separating roller is disposed on the reference side of the conveyance path of the copy paper so as to separate the copy paper from the photosensitive drum or the fixing roller.

However, in the manufacturing process of copy paper, especially at the time of cutting, although the standard dimensions of copy paper are determined, the paper is cut within an allowable size range.

In other words, the specific allowable dimensional width that specifies the standard dimensional width is (L-a)
Copy paper having dimensions of .about.(L+a) is commonly used.

Therefore, the regulation guide plates of the conventional paper feeding guide device are mounted in parallel at intervals of the standard width ([-) of the copy paper.

Therefore, in an electrostatic copying machine that uses the - side edge as the copying reference, copy paper with a width of the above-mentioned allowable dimensions (L-a) to (L+a), especially copy paper with the width of (L-a), is fed. When copying paper, since both edges do not contact the regulation guide plate, the paper may be fed diagonally or not along the regulation guide plate on the reference side, and as described above, the copy paper may end up on the reference transport path side. If a separation means or the like is provided in the paper, it has the disadvantage that it cannot perform its function and paper jams occur.

In addition, in the conventional paper feeding guide device, the regulation guide plate is supported on a table so as to be movable in the width direction of the copy paper, and the regulation guide plate is adjusted according to the variation in dimensions within the allowable size range of the copy paper being fed. There is one in which the side edge of the copy paper is brought into contact with a regulation guide plate by moving the paper.

However, in such a device, the regulation guide plate must be moved for each sheet of copy paper fed in so that the side edge of the copy paper comes into contact with the regulation guide plate, making the operation very difficult. It bothered me.

An object of the present invention is to provide a guide device for feeding copy paper in an electrostatic copying machine, which allows one side edge of the copy paper to always pass through a reference conveyance path when feeding the copy paper, and has excellent operability. There is something to do.

In order to eliminate the above-mentioned conventional drawbacks and achieve the above-mentioned object, the present invention provides a table for guiding fed copy paper, and a first and third groove provided on the table for regulating both side edges of the copy paper. In an electrostatic copying machine, the electrostatic copying machine has a second regulation guide plate and uses one side edge of the copy paper fed along the first regulation guide plate as a copying reference, which corresponds to the first regulation guide plate. A folded piece bent inward is formed at the tip of the second regulation guide plate in the copy paper feeding direction, and the distance between the tip of the folded piece and the first regulation guide plate is copied. match the minimum allowable size of a predetermined standard size of paper, and match the distance between the rear end portions of the first and second regulation guide plates with the maximum allowable size of a predetermined standard size of copy paper; Further, the upper ends of the bent pieces of the second regulation guide plate and the corresponding tip portions of the first regulation guide plate are bent inward.

Hereinafter, a description will be given based on an embodiment shown in the drawings.

In FIG. 1 showing a type of electrostatic copying machine with a copy reference as one end, a machine body 1 includes a manual paper feeding device 2 for feeding copy paper to a paper feeding section in the machine body 1. It is provided.

The paper feeding device 2 includes a paper feeding table 3 mounted at an angle with respect to the machine body 1, and is fixed to the top surface of the paper feeding table 3, and feeds both sides of manually fed copy paper P. It is cut out from the first and second regulation guide plates 4 and 5 for guiding paper.

Furthermore, as shown in FIGS. 2 and 3, in front of the paper feeding device 2 in the paper feeding direction, there is a disk-shaped disk for feeding the copy paper P fed by the paper feeding device 2 to a predetermined position of the machine body 1. A transport roller 7 is provided.

The first and second regulation guide plates 4 and 5 are arranged on one side depending on the copying standard of the machine body 1, for example, in this embodiment,
The first regulation guide plate 4 serves as a reference side regulation guide plate.

Furthermore, the tip end portion 5b of the second regulation guide plate 5 in the copy paper feeding direction provided opposite to the first regulation guide plate 4 is as follows:
A bent piece 6 is formed that is bent inward, that is, in the direction of the first regulation guide plate 4.

rear end portions 4a of the first and second regulation guide plates 4, 5;
5a is formed to have an L-shaped cross section, and the tip portions 4b, 5b, especially in the vicinity where the bent piece 6 is formed, have a U-shaped cross section (the part where the bent piece of the second regulation guide plate 5 is formed). The leading end of the first regulating plate corresponding thereto is formed such that the upper end of the regulating guide plate is bent inward.

The mounting interval of the first and second regulation guide plates 4 and 5 is as follows:
As mentioned above, if the standard dimensional width of copy paper is (L) and the allowable dimensional range is (L-a) to (L+a), then the distance between the rear ends 4a and 5a of the regulation guide plates 4 and 5 is The maximum dimension (t+a) in the above-mentioned allowable dimension range, and the distance between the tip of the new song piece 6 of the second regulation guide plate 5 and the first regulation guide plate 4 is the minimum dimension (L-a) in the above-mentioned allowable dimension range. (See Figure 2).

Therefore, for example, when the width of the fed copy paper P is the minimum allowable dimension (L-a), the rear end 4 of the regulation guide plate 4°5
When the copy paper P is manually inserted from a and 5a and one end of the copy paper P comes into contact with the folded piece 6, the other end of the copy paper P is
The fuselage 1 is guided and sent so as to surely come into contact with the first regulation guide plate 4 provided on the reference side, and is then rotated by a conveying roller ruff that is rotationally driven by a drive mechanism (not shown).
is sent to a predetermined position.

Next, the width of the fed copy paper P is the maximum allowable size (L+a
), the rear ends 4a, 5a of the regulation guide plates 4, 5
When the copy paper P is manually inserted, the regulation guide plates 4 and 5
When the copy paper P is fed while its side edge is regulated by and one side edge of the copy paper P comes into contact with the folded piece 6 of the second regulation guide plate 5,
Since the conveyance width of the copy paper P is regulated, the copy paper P becomes wavy, but both ends of the copy paper P are stopped by the U-shaped tips 4b and 5b of the regulation guide plates 4 and 5, and the reference side of the copy paper P is is fed while ensuring that the side edge of the plate is along the first regulation guide plate 4.

In this case, the conveyance roller 7 for conveying the copy paper P fed in its waveform to a predetermined position in the machine body 1 may be a plurality of disk-shaped conveyance rollers as shown in FIG. 2, or a plurality of disk-like conveyance rollers as shown in FIG. By providing one disc-shaped conveyance roller on the reference side, the reference side of the copy paper P that is fed is nipped by the conveyance roller 7, and at this time, the reference side of the copy paper P that is fed in the wavy state is held in between, Return to the original state,
It can be sent to a predetermined position on the aircraft body 1.

In addition, in this embodiment, although explanation was given for manual paper feeding,
The present invention can also be used in a paper feeding device for stacked sheets of copy paper or a paper feeding device for rolled copy paper.

As described above, the present invention forms a folded piece that is bent inward at the leading end in the traveling direction of the copy paper of the second regulation guide plate corresponding to the first regulation guide plate, and this folded piece The distance between the leading edge of the first regulation guide plate and the first regulation guide plate is made to match the minimum allowable dimension of the predetermined standard dimensions of the copy paper, and the distance between the rear ends of the second and second regulation guide plates is adjusted to the predetermined specification of the copy paper. The part where the new curved piece of the second regulation guide plate was formed and the corresponding upper end of the tip of the first regulation plate were bent inward to match the maximum allowable standard dimensions of Extremely good quality,
It is possible to feed the copy paper reliably along the reference side regulation guide plate, to ensure that one side edge of the copy paper and the copy original match, and to use one side edge of the copy paper. Even when separation is performed, paper jams can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a manual paper feeding electrostatic copying machine to which the present invention is applied, FIG. 2 is an enlarged plan view showing the paper feeding device of FIG. 1, and FIG. A cross-sectional view along line III,
FIG. 4 is a plan view showing the other side of the conveyance roller. 1... Machine body, 2... Paper feeding device, 3...
...Paper feeding table, 4, 5...Regulation guide plate, 6...Bending piece, 7...Transport roller.

Claims (1)

[Scope of utility model registration request] It has a table for guiding fed copy paper, and first and second regulation guide plates provided on the table for regulating both side edges of the copy paper, and the second regulation guide plate is provided along the first regulation guide plate. In an electrostatic copying machine that uses one side edge of the fed copy paper as a copying reference, a second regulation guide plate corresponding to the first regulation guide plate has an inwardly located tip at the tip in the copy paper feeding direction. A folded piece is formed, and the distance between the tip of the folded piece and the first regulation guide plate is made to match the minimum allowable dimension of the predetermined standard size of the copy paper, and the The distance between the rear ends of the second regulation guide plate is made to match the maximum allowable size of the predetermined standard dimensions of the copy paper, and the part of the second regulation guide plate where the folded piece is formed and A guide device for feeding copy paper in an electrostatic copying machine, wherein an upper end of a corresponding first regulating guide plate is bent inward.