JP2007153439A - Sheet feeding unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform a smooth discharging of relative hard sheets such as a towel paper and a kitchen paper and the like and similarly a smooth discharging of soft paper such as a tissue paper and the like. <P>SOLUTION: This sheet feeding unit 1 holds the upper part of a sheet with a pair of right and left substantial cylindrical rotary guide means 4. A first sheet 5 is fed out as the sheet is fed out as any one of the right or left rotary guide means is rotating and the outer surface of the first sheet is rotated while the rotary guide means move upwardly when a folding and holding part 5a passes through it, thereby the upper part of the second sheet is fed into between the pair of right and left rotary guide means and the sheet is smoothly discharged in a continuous manner. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sheet supply tool such as towel paper, tissue paper, and kitchen paper.

  Conventionally, many supply tools for soft paper such as tissue paper have been supplied. However, relatively hard sheet supply tools such as towel paper and kitchen paper have not solved practical drawbacks.

  In tissue paper, since the paper thickness is thin and the paper quality is soft, the sheet deforms three-dimensionally and is discharged relatively smoothly, but relatively hard sheets such as towel paper, kitchen paper, etc. However, since it has strength, it is difficult to bend, so a sheet supply tool that can supply a sheet smoothly has not been provided.

As a configuration in tissue paper, [JP 2005-187066] (hereinafter referred to as “reference”) has been proposed.
However, this reference also has a disadvantage that the second sheet is not smoothly discharged with respect to relatively hard sheets such as towel paper and kitchen paper.

Specifically, the defects are shown in “Reference FIGS. 6 to 11” when the sheet is discharged, but actually, the problems as shown in FIGS. 24 to 27 occurred. .
FIG. 22 shows “Ref. FIG. 7”. Until this state, the first sheet is pulled out, but when pulled out further, as shown in FIG. 23 (“Ref. FIG. 8”), It was confirmed that many problems that do not necessarily occur occur.

That is, as shown in FIG. 24, when the folding portion is opened, the second sheet hits the corner portion of the first surface contact plate (23 in the reference) and is repelled at the corner portion as shown in FIG. Many phenomena were observed.
Therefore, as shown in FIG. 26, the sheet bundle is returned to the stacked sheet bundle, and a trouble that the second sheet cannot be taken out sometimes occurs and continuous discharge may not be performed.

Further, as shown in FIG. 27, when the sheet is pulled up between the surface contact plates, the sheet is discharged in a folded state in the opposite direction, resulting in a clogging phenomenon of the second sheet.
Since the surface contact plate is relatively fixed, the occurrence of these occurrences becomes an obstacle because the first surface contact plate (23 in the reference) does not move upward or leftward when passing through the folding portion. It is because it ends up.

Further, since the first and second surface contact plates are in surface contact with the sheet, the frictional force is large, and when the force is pulled up, the frictional force between the first sheet and the second sheet is lost. This was because the first sheet slipped out.
Therefore, the sheet take-out assisting tool that cannot be continuously discharged from time to time is an article that has many problems in actual use and does not satisfy the user's expectations.
JP 2005-187066 A

The present invention provides an epoch-making sheet feeder that completely eliminates these drawbacks.
In particular, it can be smoothly discharged to relatively hard sheets such as towel paper and kitchen paper, and the same effect can be exerted on soft paper such as tissue paper.

A sheet supply tool having a folding part configured by folding sheets together, taking out the upper part of the sheet from a stack of laminated sheets and taking out one by one in order;
When the upper part of the sheet is sandwiched between a pair of right and left rotation guide means having a substantially cylindrical shape, and the first sheet is sent while the rotation guide means is rotated while either the left or right rotation guide means is rotated, and the folding sandwiching part passes. By rotating the outer surface of the first sheet while the rotation guide unit moves upward, the upper portion of the second sheet is fed between the pair of left and right rotation guide units, and the sheet is continuously discharged smoothly. A sheet supply tool is provided.

  The sheet feeding tool according to claim 1, wherein an outer radius E of the pair of left and right rotation guide means is in a range of 7.0 to 25 mm.

  3. The sheet supply tool according to claim 1, further comprising an inner stopper means for limiting a minimum approach distance C between the pair of left and right rotation guide means.

  4. The sheet feeding device according to claim 1, further comprising an inner stopper means for limiting a minimum approach distance C between the pair of left and right rotation guide means and an outer stopper for limiting a maximum distance D. .

  The inner stopper means for restricting the minimum approach distance C of the pair of left and right rotation guide means to 6 mm or more and the outer stopper for restricting the maximum distance D to 35 mm or less. 4. The sheet supply tool according to 4 is provided.

  The pair of left and right rotation guide means is loosely fitted to a support stopper means that restricts the minimum approach distance C to 6 mm or more and the maximum distance D to 35 mm or less, and a drop lid to which the support stopper means is attached, The sheet feeder according to claim 1 or 2, wherein the sheet container is moved up and down and automatically moved to the upper surface of the laminated sheet bundle by the weight of the dropping lid.

  The pair of left and right rotation guide means is loosely fitted to support stopper means for limiting the minimum approach distance C to 6 mm or more and the maximum distance D to 35 mm or less, and a side plate drop-off cover to which the support stopper means is attached 3. A sheet according to claim 1 or 2, wherein when the upper surface of the laminated sheet bundle is covered, no water droplets or the like are applied to the sheet, and the side plate dropping lid automatically moves to the upper surface of the laminated sheet bundle. Provides a sheet feeder.

  The pair of left and right rotation guide means approach by their own weight by providing a pair of inclined portions inclined downward toward the inside at a bottom portion of a sheet storage box that stores a bundle of laminated sheets. Or a sheet feeder according to 2.

  The sheet feeder according to claim 1, wherein the weight of each of the pair of left and right rotation guide means is 100 g or more.

The sheet supply tool of the present invention exhibits the following excellent effects.
(1) Since the continuous supply of sheets is interrupted or reinserted, it can always be used in an optimum state.
(2) The drawn sheets are not folded and clogged.
(3) It can be set simply by placing a pair of left and right rotation guide means on the sheet.
(4) When a drop lid type or a side lid drop lid type is used, the sheet is less likely to be subject to water drops, and is easy to use.
(5) Since the pulling force is small because of rotational friction, the sheet can be taken out with one hand without pressing down the drop lid or the rotation guide means.
(6) Since it can be placed on a shelf, desk, etc., it has versatility other than the wall-hanging type.

  As described above, the present invention has realized that there is an epoch-making structure that does not cause clogging of not only a soft sheet but also a hard sheet.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention. Details will be described below with reference to the drawings.

Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall perspective view of the present embodiment. In addition, in order to help understanding of the structure, the sheet storage box 1 is indicated by a two-dot chain line.
A laminated sheet bundle 2 is accommodated in the sheet storage box 1, and a pair of left and right rotation guide means 3, 4 is placed on the upper surface thereof, and the first sheet 5 of the laminated sheet bundle 2 is, for example, a right rotation guide. It is sandwiched between the means 3.
The upper end of the second sheet 6 is sandwiched between the folding portions 5 a of the first sheet 5, which continuously forms the entire laminated sheet bundle 2.

  FIG. 2 is a front view of the first embodiment. The first sheet 5 is sandwiched between the right guide means 3 and the left rotation guide means 4 and is in an upright state. Is easy.

When the actual sheet is taken out, the folding portion 5a is easily deformed in the portion other than the folding portion 5a. However, the folding portion 5a includes the folded portion of the first sheet and the second sheet. It was confirmed that the distal end portion had a large deformation resistance as if it were an integral component.
Although the width A of the folding portion 5a depends on the material of the sheet, it has been confirmed in many experiments that it is usually 10 to 30 mm.
Accordingly, when the first sheet 5 is further pulled upward, the right rotation guide means 3 is lifted by the folding portion 5a as shown in an enlarged view in FIG.

When it is further pulled up as shown in FIG. 4, the right rotation guide means 3 is further lifted and moved upward by a distance B from the position of FIG.
The distance B varies depending on the material of the sheet, the speed at which the sheet is pulled out, and the like, but it was confirmed that B = 8 to 20 mm by many experiments.

When the state shown in FIG. 5 is reached from this state, the right rotation guide means 3 rotates clockwise while being along the surface of the first sheet 5 and is lifted by a distance B.
It has been discovered that the tip for that purpose is always lifted to near the approximate center position of the left rotation guide means 4 so that the second sheet does not get entangled or return to the upper surface of the laminated sheet bundle 2. This movement of the rotation guide means 3 is an epoch-making discovery that forms the basis of the present invention.

Then, as shown in FIG. 5, the folding portion 5a is opened, falls as shown in FIG. 6 at the next time point, returns to the initial state shown in FIG. 7, and then the left rotation guide means 4 lifts up. The operation is repeated.
Therefore, the second sheet is always sandwiched between the right rotation guide means 3 and the left rotation guide means 4 and is in an upright state, so that it is always easy to take out the sheet.

Although the width A of the folding portion 5a depends on the material of the sheet, it has been confirmed in many experiments that the width A is usually 10 to 30 mm. Since it is easy to get on the folding part 5a if the diameter is slightly small, it has been elucidated that the optimum radius E is 7.0 to 25 mm.
The rotation guide means 3 and 4 are made of synthetic resin, wood, glass, paper, metal, ceramics, or the like, and may be solid. Alternatively, a hollow cylindrical body may be used, and a weight body may be included therein.

FIG. 8 is an overall perspective view of the second embodiment of the present invention, and FIG. 9 is a cross-sectional view perpendicular to the longitudinal direction of the sheet storage box of FIG.
Between the right rotation guide means 3 and the left rotation guide means 4, an inner stopper means 7 is provided for limiting the approach distance between them. By restricting the inner stopper means 7 to the minimum approach distance C between the right rotation guide means 3 and the left rotation guide means 4, the interference between the right rotation guide means 3 and the left rotation guide means 4 is further reduced. This is because when the second sheet is taken out, there is a space of C, so that the second sheet is taken out smoothly.

In FIG. 10, sectional drawing orthogonal to the longitudinal direction of the storage box of Example 3 of this invention is shown.
Together with the inner stopper means 7 between the right rotation guide means 3 and the left rotation guide means 4, the outer stopper means 8 allows the maximum distance between the right rotation guide means 3 and the left rotation guide means 4 to be D, It is provided to limit.
Since the maximum distance between the right rotation guide means 3 and the left rotation guide means 4 is limited to D by the outer stopper means 8, the upper end of the sheet sandwiched between the central portions does not fall down, so that it can be easily taken out. It is.

  As shown in Table 1, it has been found that the minimum approach distance C and the maximum distance D have an optimum range as shown in Table 1 by experiments of several hundred times.

As shown in Table 1, the minimum approach distance C was found to cause sheet clogging between 1 mm and 5 mm, but when it was 6 mm or more, a phenomenon that no sheet clogging occurred was found.
Therefore, it was found that the minimum approach distance C is preferably set to 6 mm or more.
Regarding the maximum distance D, it was found that there was no defective standing up to 10 to 30 mm, and it occurred when the maximum distance D was 35 mm or more. Therefore, it was found that the maximum distance D is desirably set to 35 mm or less.
Further, as shown in Table 2, it was found that there are optimum values for the weights of the right rotation guide means 3 and the left rotation guide means 4.

From the experimental results in Table 2, the relationship between the weight (grams) per rotation guide means and the number of rotations of the rotation guide means was not popped out at any weight in the central takeout near the center of the sheet width. In the case of taking out the end portion with the width end portion, it jumped out 12 times out of 20 times when it was 70 grams, but it became twice at 95 grams, and the phenomenon of popping out was not seen from 100 grams.
Therefore, it was found that the weight (gram) per rotation guide means is desirably set to 100 grams or more.

The fourth embodiment is an embodiment described in claim 6.
FIG. 11 shows an overall perspective view of Embodiment 4 of the present invention, and FIG. 12 shows a longitudinal sectional view of the storage box of FIG.
The right rotation guide means 3 has circular recesses 3a and 3b, and the left rotation guide means 4 has circular recesses 4a and 4b at both ends, and the recesses 3a and 3b. 4a and 4b are loosely fitted to the support stopper means 10 provided on the drop lid 9, and the drop lid 9 moves up and down the inside of the sheet storage box 1, and automatically by the weight of the drop lid 9 and the rotation guide means. In particular, it is configured to move to the upper surface of the laminated sheet bundle.

As in the previous embodiment, the position and dimensions of the support stopper means 10 limit the minimum approach distance C to 6 mm or more, and limit the maximum distance D to 35 mm or less.
Since the rotation guide means 3 and 4 are overlaid on the support stopper means 10 and are naturally located at the center of the support stopper means 10 due to gravity, setting the positions of the support stopper means 10 at a minimum The approach distance C can be limited to 6 mm or more. The maximum distance D can also be limited to 35 mm or less depending on the position and size of the support stopper means 10.

The fifth embodiment is an embodiment described in claim 7.
FIG. 13 is an overall perspective view of Embodiment 5 of the present invention, and FIG. 14 is a cross-sectional view perpendicular to the longitudinal direction of the storage box of FIG.
The right rotation guide means 3 has circular recesses 3a and 3b, and the left rotation guide means 4 has circular recesses 4a and 4b at both ends, and the recesses 3a and 3b. 4a and 4b are loosely fitted to the support stopper means 10 provided on the lid 11 with the side plate.

The side plate drop lid 11 has a guide hole 14 through which at least one guide 13 provided in the upper part of the shallow sheet storage box 12 passes. The side plate drop lid 11 is guided to the guide 13. Thus, it is configured to move up and down by its own weight toward the shallow sheet storage box 12.
As in the previous embodiment, the size and position of the support stopper means 10 are such that the minimum approach distance C is limited to 6 mm and the maximum distance D is limited to 35 mm or less.

In the fifth embodiment, the side plate drop cover 11 covers almost the entire upper surface of the sheet, and the side plate covers the upper side surface, so that it is possible to prevent water droplets or the like from being applied to the sheet by wiping hands or cooking. It ’s what you do.
If the height F of the side plate is substantially the same as the drop distance G of the right rotation guide means 3 and the left rotation guide means 4, the last sheet can be taken out.

This embodiment is another embodiment of the fifth embodiment.
Instead of using the shallow sheet storage box 12, the guide 13, and the guide hole 14 of the fifth embodiment, instead of the shallow sheet storage box 12, the upper surface of a resin film case or paper box in which the laminated sheet bundle 2 is placed at the time of marketing. The same effect can be obtained by placing the side plate drop lid 11 on the upper part of the package. According to this embodiment, there are few parts to be used, and there is an advantage that water droplets or the like are not easily attached to the sheet without replacing the sheet storage box.

Example 7 is an example described in claim 8.
FIG. 17 is an overall perspective view of Embodiment 5 of the present invention, and FIG. 18 is a cross-sectional view perpendicular to the longitudinal direction of the storage box of FIG. An inclined portion 15 that is inclined downward toward the inside is provided at the bottom of the sheet storage box, and the laminated sheet bundle 2 is bent into a substantially V shape by the inclined portion 15. Then, the left rotation guide means 4 can be brought close to its own weight and exert the same function as that of the first embodiment at the upper part of the laminated sheet bundle 2.
The inclined portion 15 may be flat or curved.

19 shows a perspective view of another embodiment of the rotation guide means 3 or 4 according to the present invention, FIG. 20 shows a sectional view in the longitudinal direction, and FIG. 21 shows a sectional view perpendicular to the longitudinal direction. ing.
The cross section of the rotation guide means 3 or 4 is constituted by a hollow cylindrical tube 16, and lid plates 17 are provided at both ends of the opening.
The cylindrical body 16 is made of synthetic resin, wood, glass, paper, metal, ceramics, or the like.
Also, for example, a weight 18 such as a sphere or cylinder, powder, fluid, etc., placed in the hollow portion, is configured to be freely movable inside. The material of the weight body 18 is composed of a synthetic resin, wood, glass, paper, metal, ceramics, powder such as sand, or liquid such as water.

  With this configuration, as shown in FIG. 21, the center of gravity of the weight body 18 is lowered by H with respect to the center of the cylindrical body 16, so that the right rotation guide means 3 or the left rotation guide means 4 It has the effect of lowering the center of gravity and the effect of smoothing the discharge of the sheet by the impact of the weight 18 falling inside.

[Modification]
The present invention includes the following modifications.

  (1) By making the hollow cylindrical cylindrical body 16 of Example 7 from transparent glass or synthetic resin, the spherical body such as glass or synthetic resin inside, or the weight body 18 that is a cylindrical body can be seen. Provided is a highly efficient rotation guide means.

  (2) In the embodiment shown in claim 6 or 7, the rotation guide means 3 or 4 is attached by providing a projection 9 such as a shaft on the end face of the rotation guide means 3 or 4, or the side cover 9. It includes another form of attachment method such as engagement with the drop lid 11.

  As examples of utilization of the present invention, as described above, as a supply tool for relatively hard sheets such as towel paper and kitchen paper without practical defects such as clogging, and as a supply tool for soft paper such as tissue paper By providing a highly versatile sheet supply tool that can be used, the market can be activated by new products.

It is a whole perspective view of Example 1 of the present invention. It is a front view of Example 1 of the present invention. It is the elements on larger scale of a sheet drawer state. It is the elements on larger scale of a sheet drawer state. It is the elements on larger scale of a sheet drawer state. It is the elements on larger scale of a sheet drawer state. It is the elements on larger scale of a sheet drawer state. It is a whole perspective view of Example 2 of the present invention. It is sectional drawing of Example 2 of this invention. It is sectional drawing of Example 3 of this invention. It is a whole perspective view of Example 4 of the present invention. It is sectional drawing of Example 4 of this invention. It is a whole perspective view of Example 5 of the present invention. It is sectional drawing of Example 5 of this invention. It is a whole perspective view of Example 6 of the present invention. It is sectional drawing of Example 6 of this invention. It is a whole perspective view of Example 7 of the present invention. It is sectional drawing of Example 7 of this invention. It is a perspective view of Example 8 of the present invention. It is sectional drawing of Example 8 of this invention. It is sectional drawing of Example 8 of this invention. FIG. 8 is a state diagram showing “Reference FIG. 7”. FIG. 9 is a state diagram showing “Reference FIG. 8”. It is a state diagram which shows the malfunction of "reference". It is a state diagram which shows the malfunction of "reference". It is a state diagram which shows the malfunction of "reference". It is a state diagram which shows the malfunction of "reference".

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet storage box 2 Laminated sheet bundle 3, 4 Rotation guide means 3a, 3b, 4a, 4b Depression 5 1st sheet 5a Folding part 6 2nd sheet 7 Inner stopper means 8 Outer stopper means 9 Dropping lid 10 Support stopper means 11 Side plate Drop cover 12 Shallow sheet storage box 13 Guide 14 Guide hole 15 Inclined portion 16 Cylindrical body 17 Cover plate 18 Weight body

Claims (9)

A sheet supply tool having a folding part configured by folding sheets together, taking out the upper part of the sheet from a stack of laminated sheets and taking out one by one in order;
When the upper part of the sheet is sandwiched between a pair of right and left rotation guide means having a substantially cylindrical shape, and the first sheet is sent while the rotation guide means is rotated while either the left or right rotation guide means is rotated, and the folding sandwiching part passes. By rotating the outer surface of the first sheet while the rotation guide unit moves upward, the upper portion of the second sheet is fed between the pair of left and right rotation guide units, and the sheet is continuously discharged smoothly. A sheet feeder characterized by.   The sheet feeding tool according to claim 1, wherein an outer radius E of the pair of left and right rotation guide means is in a range of 7.0 to 25 mm.   3. The sheet supply tool according to claim 1, further comprising an inner stopper means for limiting a minimum approach distance C between the pair of left and right rotation guide means.   4. A sheet feeding tool according to claim 1, further comprising an inner stopper means for limiting a minimum approach distance C between the pair of left and right rotation guide means and an outer stopper for limiting a maximum distance D.   The inner stopper means for restricting the minimum approach distance C of the pair of left and right rotation guide means to 6 mm or more and the outer stopper for restricting the maximum distance D to 35 mm or less. 4. The sheet supply tool according to 4.   The pair of left and right rotation guide means is loosely fitted to a support stopper means that restricts the minimum approach distance C to 6 mm or more and the maximum distance D to 35 mm or less, and a drop lid to which the support stopper means is attached, The sheet supply tool according to claim 1 or 2, wherein the sheet container is moved up and down and automatically moved to the upper surface of the laminated sheet bundle by its own weight.   The pair of left and right rotation guide means is loosely fitted to support stopper means for limiting the minimum approach distance C to 6 mm or more and the maximum distance D to 35 mm or less, and a side plate drop-off cover to which the support stopper means is attached 3. A sheet according to claim 1 or 2, wherein when the upper surface of the laminated sheet bundle is covered, no water droplets or the like are applied to the sheet, and the side plate dropping lid automatically moves to the upper surface of the laminated sheet bundle. Sheet feeder.   The pair of left and right rotation guide units approach each other by their own weight by providing a pair of inclined portions inclined downward toward the inside at a bottom portion in a sheet storage box for storing the laminated sheet bundle. The sheet supply tool according to 1 or 2.     The sheet feeder according to claim 1, wherein the weight of each of the pair of left and right rotation guide means is 100 g or more.

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