JP2002274667A - Paper feeding method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper feeding method and device having no fear that paper sheets are taken out of a paper package and again put in order to be mounted on a paper feed cassette and the paper sheets are damaged by fingers. SOLUTION: According to this paper feeding method and device 21, on a vertically movable base plate 23 provided in the paper feed cassette 22, a removal part 26 of the paper package 25 is previously removed by manual operation or automatically removed through a feed roller 32, the paper sheets S are exposed from the paper package 25 to be mounted in the paper feed cassette 22, and fed to a machine main body 31 through a feed roller 32 contacting the paper sheets S from above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a paper sheet on a vertically movable bottom plate provided in a paper cassette, and feeding the paper sheet to a machine body via a feed roller contacting the paper from above. The present invention relates to a paper feeding method and a paper feeding method.

[0002]

2. Description of the Related Art Heretofore, as this kind, Japanese Patent Application Laid-Open
As shown in FIG.

That is, in order to load the paper S for paper feeding into the paper cassette 11, the paper cassette 3
Is removed, and the cover 14 is opened. When the cover 14 is opened, the arm member 13 pushes down the sheet table 12 as indicated by a two-dot chain line, and the gap between the sheet table 12 and the feed roller 4 is expanded, so that the sheet S can be easily inserted.

In this state, the wrapped paper package is broken, the paper S is taken out, and the paper S is held by hand and mounted on the spread paper base 12.

The paper cassette 11 with the paper S mounted thereon and the cover 14 closed is inserted into the cassette mounting section 3 of the machine body 2.
When the paper table 12 is mounted so as to slide in, the paper table 12 rotates the collar 5 and enters under the collar 5. Further, the paper feeder 1 is disclosed in which the paper tray 12 is regulated by the regulation unit 6 so as to feed the paper through the rotation of the feed roller 4.

[0006]

However, in such a conventional paper feeding apparatus 1, it takes time to take out the paper S from the paper package, and when re-arranging the paper S to be loaded in the removed paper cassette 11, In addition, there is a possibility that a finger may be damaged at the end of the sheet S.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a paper feeding method and apparatus which does not cause the paper to be taken out of a paper package, re-aligned, mounted in a paper feed cassette, or damaged by a finger or the like with the paper. .

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a sheet for sheet feeding is mounted on a vertically movable bottom plate provided in a sheet cassette, and A paper feeder for feeding paper toward a machine body via a feed roller contacting the paper package from above, removing a part of the paper package, exposing the paper from the package, and mounting the paper in the paper cassette. It is characterized by.

In such a case, since a part of the paper package is removed and only a part of the paper is mounted on the paper cassette, the paper is mounted on the paper cassette without being separated. it can. Therefore, the trouble of aligning the paper is eliminated, and damage to the finger or the like can be prevented.

According to a second aspect of the present invention, in the paper feeder according to the first aspect, the removing unit for removing a part of the paper package includes a front part in a paper feeding direction of the paper package; It is characterized by being formed by at least a part of the upper surface of a central portion connected to the front surface portion.

In such a case, the paper package removing portion is formed as a front portion and at least a part of the upper surface.
The paper contacts the feed roller and the exposed part of the paper on the top,
By the rotation of the feed roller in contact, the paper is fed from the open front surface of the paper package.

According to a third aspect of the present invention, in the paper feeder according to the first or second aspect, the paper package comprises:
At least a portion is formed into a rigid body by using a rigid material such as corrugated paper or resin.

In such a device, the paper package is formed of a rigid material, so that the paper package must conform to the shape of a rigid metal paper cassette. However, the rigid package easily conforms to the paper side due to the elastic deformation of the package, and the frictional force at the contact surface with the feed roller becomes more constant. Also, omitting the paper cassette,
Paper can also be fed directly from this rigid package.

According to a fourth aspect of the present invention, a paper sheet for feeding is mounted on a vertically movable bottom plate provided in a paper feed cassette, and the main body of the machine is fed via a feed roller which comes into contact with the paper from above. The paper package is provided with a removing portion formed by a front surface portion in the paper feeding direction and a part of the upper surface of a central portion connected to the front surface portion. An exposing mechanism is provided for exposing the paper from the paper package by removing the portion.

In such an apparatus, an exposing mechanism for exposing the paper by removing the paper package removing section is provided. Therefore, the paper package is fed without removing the paper package without removing the paper package. Simply by attaching the cassette to the cassette, the removing unit can be removed and the sheet can be exposed.

According to a fifth aspect of the present invention, in the paper feeder according to the fourth aspect, the exposing mechanism includes a feed roller that contacts the upper side of the paper package.
The removal section is wound up.

In this case, since the exposure mechanism is used also as the feed roller, there is no need to provide a new dedicated mechanism.

According to a sixth aspect of the present invention, in the paper feeding method using the paper feeding device according to the first or fourth aspect, a mounting step of mounting a paper package in a paper feeding cassette; An exposing step of removing and removing the package removing portion through an exposing mechanism; and feeding the paper at a predetermined speed and a predetermined distance toward the machine body by bringing a feed roller into contact with the exposed paper. And a process.

In such a case, the paper is fed using the paper feeding device according to claim 1 or 4, so that the paper is loaded in the paper feed cassette as it is in the paper package. Thus, a paper feeding method capable of feeding paper to the machine body via a feed roller is provided.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

[0021]

First Embodiment A paper feeder according to a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an explanatory diagram showing a side surface of the sheet feeding device according to the first embodiment.

In FIG. 1, a box-shaped paper feed cassette 22 opened upward is provided with a bottom plate 23 which is pushed up and supported from below by a spring 24, and the paper S of a paper package 25 packaged on the bottom plate 23 is provided. Are placed.

Reference numeral 32 denotes a feed roller positioned above the sheet S. The feed roller 32 is moved up and down and the bottom plate 23 is pushed up. The exposed upper surface exposed portion 28
a is disposed so as to contact with a predetermined surface pressure. Therefore, the sheet S can be fed at a predetermined speed and a predetermined distance toward the machine main body 31 by the rotation of the feed roller 32.

The machine body 31 is provided with a carry-out roller 33 at a position forward of the feed direction from the feed roller 32.
A reverse roller 3 is provided below and opposite to the carry-out roller 33.
5 are provided. And these two rollers 33, 35
Contact with a predetermined surface pressure, and nip the sheet S fed from the feed roller 32.

In the nip 33a, the reverse roller 3
By the operation of 5, the overlapping sheets S are pushed back and separated one by one while being forward / reversely rotated in the sheet feeding direction as shown by the chain line arrow, and are conveyed to the sheet feeding drive transmission section 39.

FIG. 2 is a perspective view of the paper package.

In FIG. 2, reference numeral 25 denotes a paper package wrapping paper S for feeding paper, and reference numeral 26 denotes a removing portion of the paper package 25. The front portion 27 and a part of an upper surface 28 connected to the front portion 27 are formed. By removing it, an upper surface exposed portion 28a is provided.

Therefore, even if the removing unit 26 is removed from the paper package 25, since most of the paper is packed, the controllability for the alignment of the paper S in the paper package 25 is not reduced, and the paper package 25 is not separated. So, the top exposed part 2
When the feed roller 32 (see FIG. 1) is brought into contact with and rotated by 8a, it is possible to feed a predetermined distance at a predetermined speed in a paper feeding direction indicated by an arrow P in FIG.

[Modification of Paper Package] FIG. 3 is a perspective view showing a modification of the paper package of FIG.

In FIG. 3, reference numeral 25A denotes a rigid body package in which at least a part of the paper package 25 is formed into a rigid body by using a rigid material such as cardboard or resin.

The rigid package 25A is
The front part 27 in the sheet feeding direction indicated by the arrow P is opened, and a part of the center part of the upper surface 28 connected to the front part 27 is opened so that the sheet S can contact the feed roller 32 (see FIG. 1). Is formed on the upper surface exposed portion 28b. Further, rails 25a are formed on both side surfaces, and are slidably fitted to rail guides 25b provided on the side of the paper feed cassette 22 to be fixed at predetermined positions.

Therefore, the paper S mounted in the rigid package 25A can be easily applied to the paper side by the elasticity of the package 25A, and the nip width serving as the friction surface of the feed roller 32 can be widened.

The reason is that the nip portion 32a (see FIG. 1) of the rigid body package 25A is flexible, so that the nip width of the paper package 25 mounted on the paper cassette 22 when the paper is fed is ±. ± 3-4m from 1mm
m.

Further, since the sheet S can be inserted into the rigid body package 25A, the sheet S can be prevented from being separated or bent, and the accuracy of feeding the sheet S can be improved. In addition, the rigid body package 25A can omit the paper feed cassette 22 because of its strength, and the cost of the apparatus can be reduced.

It should be noted that the rigid body package 25A may be a part of a rigid body instead of the entire package 25A, and a resin film may be attached to other positions, for example. Then, by blocking the ventilation, the paper S can be prevented from being absorbed in the atmosphere environment, in particular, moisture. Further, after long-term use, it can be easily folded and discarded.

Other configurations and operations are the same as those of the first embodiment.
Therefore, the description is omitted.

[0038]

Embodiment 2 FIG. 4 shows an exposing mechanism for exposing and removing a paper package removing section.

That is, the paper package 25 mounted on the paper feed cassette 22 without removing the removing portion 26
Then, as shown by an arrow, the feed roller 32 is brought into contact with the feed roller 32 and rotated in a direction opposite to the normal sheet feeding.

The feed roller 32 and the paper package 2
5 starts to break from the cutout portion 29a of the lower surface 29 of the paper package 25 made in advance, a part of the lower surface 29 indicated by a dotted line, the front surface 27, and the upper surface 28.
Of the feed roller 32
And move upward as shown by the two-dot chain line.

Further, Velcro (registered trademark) A
The surface 42 (or the surface B) is adhered, and the magic tape B surface 43
(Or A side) is fixed.

Accordingly, when the removing portion 26 is peeled off and goes around the feed roller 32, the magic tape in the paper package 25 is the A surface 42 and the magic tape B surface fixed to the housing. Will be fixed.

At this time, the shape to be peeled off is almost the same as that removed by hand shown in FIG. 2, and the plane width is 3 to 8 cm.
Is appropriate, but it is only necessary that a part of the upper surface can be exposed, and the present invention is not limited to this value.

In addition, the perforated area is provided with a perforation,
It is conceivable to regulate an appropriate range.

Thereafter, the feed roller 32 rotates in the direction opposite to the direction of the arrow in FIG. 3 to enter a normal paper feeding state, and the paper S is fed.

As described above, since the paper supply state can be automatically shifted to the paper supply state only by mounting the paper package 25 on the paper supply cassette 22, the operator removes the removal unit without bothering the operator. It is possible to replenish the paper package 25 without the need.

Other configurations and operations are the same as those of the first embodiment.
Therefore, the description is omitted.

[0048]

According to the first aspect of the present invention, since a part of the paper package is removed and only a part of the paper is mounted on the paper cassette in a state of being exposed, the paper is mounted on the paper cassette without being separated. it can. Therefore, the trouble of aligning the paper is eliminated, and damage to the finger or the like can be prevented.

According to the second aspect of the present invention, since the paper package removing portion is formed on the front surface and at least a part of the upper surface, the paper comes into contact with the feed roller and the exposed portion of the paper on the upper surface. By rotation, the paper is fed from the open front part of the paper package. Therefore, the paper package is opened to a minimum only necessary surfaces.

According to the third aspect of the present invention, the paper package is formed of a rigid material, so that the paper package needs to conform to the shape of a rigid metal paper cassette. However, the rigid package easily conforms to the paper side due to the elastic deformation of the package, and the frictional force at the contact surface with the feed roller becomes more constant. Therefore, the paper feeding accuracy can be improved. Further, it is also possible to omit the paper feed cassette and feed paper directly from the rigid body package. Therefore, the cost of the apparatus can be reduced.

According to the fourth aspect of the present invention, since an exposing mechanism for exposing the paper by removing the paper package removing portion is provided, the paper package is not removed from the paper cassette without removing the paper package removing portion. The sheet can be exposed simply by attaching it. Therefore, it is not necessary to remove the removing unit, and the productivity is improved.

According to the fifth aspect of the present invention, since the exposing mechanism is also used as the feed roller, there is no need to provide a new dedicated mechanism. Therefore, the cost of the apparatus can be reduced.

The invention of claim 6 is the invention of claim 1 or claim 4.
The paper feeding method using the paper feeding device described in (1) above.
This is a paper feeding method in which paper can be fed toward the machine body via the feed roller.

[Brief description of the drawings]

FIG. 1 is a side view showing a sheet feeding device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a paper package according to the first embodiment.

FIG. 3 is a perspective view showing a modification of the paper package according to the first embodiment.

FIG. 4 is an explanatory view showing an exposure mechanism of a paper package according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view illustrating a sheet feeding device according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Paper feeder 22 ... Paper feed cassette 23 ... Bottom plate 25 ... Paper package 26 ... Removal part 31 ... Machine main body 32 ... Feed roller 33 ... Unloading roller 35 ... Reverse roller 39 ... Paper feed drive transmission part S ... Paper

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3F343 FA02 FA07 FB01 FC21 GA03 GB01 GC01 GD01 HA16 HA23 HA29 HB03 HB06 HC04 HC06 HC25 HC30 KB03 KB04 KB17 LA02 LA04 LA13 LC27

Claims (6)

[Claims] 1. A paper feeding device in which paper for paper feeding is mounted on a vertically movable bottom plate provided in a paper feeding cassette, and the paper is fed to a machine body via a feed roller contacting the paper from above. The paper feeder according to claim 1, wherein a part of the paper package is removed, the paper is exposed from the package, and the paper is mounted in the paper cassette. 2. A removing portion for removing a part from the paper package is formed by a front part in the paper feeding direction of the paper package and at least a part of a top part of a central part connected to the front part. The sheet feeding device according to claim 1, wherein: 3. The paper feeding device according to claim 1, wherein the paper package is formed at least partially in a rigid body from a rigid material such as cardboard or resin. 4. A paper feeding device in which paper for paper feeding is mounted on a vertically movable bottom plate provided in a paper feeding cassette, and the paper is fed to a machine body via a feed roller contacting the paper from above. In the paper package, a removing portion formed by a front portion in the paper feeding direction and a part of the upper surface of a central portion connected to the front portion is provided, and the removing portion is removed from the paper package. A sheet feeding device provided with an exposure mechanism for exposing the sheet. 5. The removing mechanism according to claim 4, wherein the removing unit is configured to wind up the removing unit via the feed roller that contacts an upper side of the paper package.
A paper feeder according to claim 1. 6. A paper feeding method using a paper feeding device according to claim 1, wherein a mounting step of mounting a paper package in a paper feeding cassette, and a removing section of the mounted paper package is exposed. An exposing step of removing and exposing through a mechanism, and a feeding step of feeding a sheet at a predetermined speed and a predetermined distance toward a machine body by bringing a feed roller into contact with the exposed sheet. Features.