U.S. patent application number 13/502657 was filed with the patent office on 2012-09-13 for sheet storage box.
Invention is credited to Hiromichi Fujimoto.
Application Number | 20120228323 13/502657 |
Document ID | / |
Family ID | 42709001 |
Filed Date | 2012-09-13 |
United States Patent
Application |
20120228323 |
Kind Code |
A1 |
Fujimoto; Hiromichi |
September 13, 2012 |
SHEET STORAGE BOX
Abstract
A sheet storage box has a sheet-removing opening effectively
forming the portion to remove the sheet easily from the opening and
a portion to easily catch the sheet wherein, the shape of the rims
of the opening of the sheet storage box designed to remove the
sheet is formed in such a way that the movement of the sheet is
reduced by adequately reducing the spatial area of the opening and
the rims of the opening are converted to convex shape smooth curves
to smoothly slide the sheet.
Inventors: |
Fujimoto; Hiromichi; (Oita,
JP) |
Family ID: |
42709001 |
Appl. No.: |
13/502657 |
Filed: |
April 28, 2010 |
PCT Filed: |
April 28, 2010 |
PCT NO: |
PCT/JP2010/057585 |
371 Date: |
May 15, 2012 |
Current U.S.
Class: |
221/45 |
Current CPC
Class: |
B65D 83/0805 20130101;
B65D 83/0894 20130101; A47K 10/421 20130101 |
Class at
Publication: |
221/45 |
International
Class: |
B65D 83/08 20060101
B65D083/08 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 23, 2009 |
JP |
2009-244667 |
Dec 22, 2009 |
JP |
2009-290346 |
Claims
1. A sheet storage box, wherein two pairs of smooth convex shape
curved opening rims are provided at corners by considering the
center of the opening as a center point, wherein the two pairs of
the opening rims are set one after the other and the height of the
apexes of the opening rims present at the corners is the same or
substantially the same and the height of the apexes of the adjacent
or opposite opening rim is different, an open space is formed as a
result of constant absence of the opening rim or lid at three
places i.e., within a circle of 3 mm in diameter at the center of
the opening and within the circle of 2 mm in diameter at both ends
of the opening, wherein the two pairs of smooth convex shape curved
opening rims are formed to be positioned in the spaces at the three
places, the opening rims forming the space at both ends of the
opening are the depressions placed opposite each other across the
convex shape curved opening rims and the rims of the opening
forming the space including the center of the opening has
depressions between the adjacent convex shape curved rims of the
opening present at both sides and these depressions are placed
opposite each other at the corners of the rims of the opening
forming the space including the center of the opening, and the
opening rim is provided which takes the shape of nonlinear symmetry
when the opening is rotated at 180 degrees by considering the
straight line passing through the center of the opening which is
parallel or substantially parallel to the average folded line of
sheets stored to remove sheets from the opening as the axis and
takes the shape of point symmetry or substantially point symmetry
when the opening is rotated at 180 degrees by considering the
center of the opening as the axis.
2. A sheet-removing opening, wherein the depressions opposite each
other located at the corners of the opening rims forming the space
including the center of the opening according to claim 1 are
depressions formed by joining the adjacent smooth convex shape
curves by using the folded line shape or folded convex shape
curves.
3. A sheet-removing opening, wherein in the depressions opposite
each other located at the corners of the opening rims forming the
space including the center of the opening according to claim 1, a
depression being depressed by 1 cm or more in the direction
parallel to the folded line of a sheet is absent at the lower side
than the center rim of the opening of smooth convex shape curved
opening rims which support the sliding of the sheet.
4. A sheet-removing opening, wherein the depressions opposite each
other located at the corners of the opening rims forming the space
including the center of the opening according to claim 1 comprise,
one or a plurality of pairs of convex shape curved projections
shorter than the height of the apexes of the convex shape curved
opening rims present at both sides at the opposite corners of the
depressions forming the space including the center of the
opening.
5. A sheet-removing opening, wherein the pair of depressions which
forms the opening rims outside the circle of 2 mm in diameter
present at both ends of the opening according to claim 1 are
depressions themselves having the form including the concave shape
curve.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a box-shaped sheet storage
container to store any kind of dry sheet such as tissue paper,
kitchen paper, cooking sheets and vinyl bags by folding back and
overlapping each sheet one above the other one by one.
[0002] A conventional removing opening of a box-shaped tissue-paper
storage box, made of paper and the like, includes: that in which a
tissue-paper fixing sheet which is formed of a high polymer such as
a plastic and which has a cut for opening at the center is pasted
on the opening of the sheet storage box; that which has an
excessive gap at the center of the opening and which is line
symmetric or point symmetric, without the above-described fixing
sheet being pasted at a sheet-removing opening; and that in which
projections forming the rims of the opening are protruded to
substantially the center of the opening and which prevents smooth
removal of the tissue paper.
[0003] Furthermore, normally, the tissue paper is fixed in such a
way that half of the tissue paper comes out from the opening and if
that tissue paper is pulled out, the next tissue paper underneath
is pulled out and is repeatedly fixed in the same way as the
previous tissue paper.
[0004] Hereinafter, a line formed by folding the tissue paper is
considered as a folded line and as illustrated in (1') of FIG. 1,
the edge of the next tissue paper parallel to the folded line is
considered as a joint line and when a plurality of tissue paper has
been stored, the joint line and folded line are continued.
[0005] FIG. 1 is a diagram illustrating an example of a sheet
wherein, (A) is a diagram illustrating an expanded sheet, (B) is a
diagram illustrating a half folded sheet along the folded line
(1'), (1) is a sheet, (1') is a folded line of the sheet, a dotted
line circle (1R) is a portion near the right side facing the sheet
and a dotted line circle (1L) is the portion near the left side
facing the sheet.
[0006] Conventionally, two-ply tissue placed on top of each other
is considered as one sheet. Furthermore, conventionally there are
various methods of folding the tissue paper such as a one time
folding method or a two time folding method, and the size of each
folded side of the tissue paper and the position of the folded line
is not always uniform. The shape of the tissue paper is arbitrarily
determined by a manufacturer, and the tissue paper comes in many
kinds of shapes.
[0007] FIG. 2 is a diagram of a conventional tissue-paper storage
box seen from obliquely upward wherein, (2) is a surface on which
the tissue paper storage container has a removing opening, (3) is
the tissue-paper removing opening obtained after detaching a top
lid along the perforated line, (2') is the top lid removed from
(3), (A-A') is a breadth of the storage box, (B-B') is a length of
the storage box, (C-C') is a height of the storage box and (d) is a
portion near the center of the opening. In a further description,
these will also be used as the breadth of the box, length of the
box, the height of the box and the portion near the center of the
opening.
[0008] FIG. 3 is a diagram illustrating the tissue-paper removing
opening wherein, (2) is a surface of the storage box with the
tissue-paper removing opening, (a-a') is a line passing through the
center of the opening which is parallel or substantially parallel
to the folded line (1') of the sheet, (3'a) at the top and bottom
are the rims of the opening present at the line symmetric position
at the time of rotating them by considering (a-a') as an axis and
(3'b) is the rim of the opening perpendicular to (a-a') as well as
the rim of the opening present at the line symmetric position at
the time of rotating it by considering (a-a') as the axis.
[0009] As explained in the preceding paragraph 0008, (a-a') is a
straight line passing through the center of the opening which is
parallel or substantially parallel to the average folded line of
sheets from the sheets stored to be removed from the opening.
However, (a-a') is synonymous with (a-a') of FIG. 3 in the
following paragraphs and the following figures as well.
Furthermore, the straight line passing through the center of the
opening perpendicular to (a-a') is considered as (b-b') and also
used in the explanations below.
[0010] Paragraphs 0011 to 0013 and FIG. 4 mentioned below explain
the portion of the sheet to be pulled out, to which force is likely
to be applied, paragraphs 0014 to 0015 mentioned below explain the
size of a projection, paragraph 0016 to 0017 and FIG. 5 mentioned
below explain the positional relationship between the storage box
and the opening and paragraphs 0018 to 0021 mentioned below explain
the size of the opening.
[0011] FIG. 4 is an example illustrating a case of pulling out a
tissue paper from the opening of the sheet storage box wherein, (x)
is a hand pulling out the tissue paper, (e) and (e') illustrate the
portions of the tissue paper to which force from the hand (x) is
likely to be applied, (e) is the portion to which force is likely
to be applied at the time of beginning to remove the tissue paper,
in other words, at the time when half of the tissue paper is lying
inside the storage box, (e') is the portion to which force is
likely to be applied at the time of continuous pulling out, (e) and
(e') are the portions where wrinkled strings are inserted into the
tissue paper at the time of pulling out and there are single or a
plurality of places generating a resistance near the string caused
by friction at the tissue paper and opening.
[0012] At the time of beginning to pull the tissue paper, a
resistance is generated near (e), which is nearest to the opening,
just below the hand and as the tissue paper comes out of the
storage box, the resistance with the opening shifts to the portion
near both ends of the tissue paper and the shape of the string at
that point in time becomes triangular having an apex near the
hand.
[0013] Furthermore, at the time of pulling out the tissue paper, if
the hand holding the tissue paper moves to the right or left, an
apical position of (e) and (e') also moves to the right or
left.
[0014] As regards the size of the projection formed at the opening,
when the projection is small or the width of the projection is
narrow and sharp, it is easy to lose the smoothness of the tissue
paper at a portion which contacts the rims of the opening due to an
effect similar to the effect of spiked shoes depending on the
portion of the opening wherein the projection is provided.
[0015] Furthermore, if a sharp projection exists at the position
near (a-a'), it easily gets caught on a joint line of a newly
appearing tissue paper and while pulling out the tissue paper,
since the next appearing tissue paper lies over the pulling out
tissue paper, if the joint line of the next tissue paper lies on
the portion of the pulling out tissue paper where the largest force
is applied, the tissue paper can easily fall into the storage box
by getting caught.
[0016] FIG. 5 is an example illustrating the tissue-paper storage
box wherein, (A) is a diagram of the tissue-paper storage box seen
from obliquely upward, (B) is a cross sectional diagram of the
storage box cut by a straight line parallel to (b-b'), (s) is the
line on the surface with the opening parallel to (b-b'), (s) is the
line passing through the apex of the projection of the opening, (t)
intersects (s) at a right angle wherein, (t) and (s) become one
straight line when the storage box is cut open and made flat.
[0017] In (B) of FIG. 5, if the angle formed by (s) and (t) is a
right angle, the length of (f) is nearly equal to the square root
of the sum of the square of (s) and square of (t), however, if (f)
is shorter than the half of the length of the sheet, some portion
of the sheet can come out of the opening and the sum of (s) and (t)
become longer than the length of (f). If the length of the sheet is
longer than the sum of (s) and (t), then "Sheet length>(f)" is
established and although it is the last remaining sheet in the
storage box, only the portion equal to the length of the sheet
comes out from the opening.
[0018] As regards the structure of the projection in the opening,
when pulling out a tissue paper, as the apex of the projection of
the opening moves to the position away from the (a-a') of the
opening, the space of the opening becomes wider and it is hard to
abut on the joint line of the next appearing tissue paper.
[0019] Furthermore, if the apex of the projection of the opening is
near (a-a') of the opening, the space forming a gap of the opening
becomes narrow and the joint line of the next appearing tissue
paper abuts on the apex of the opposite projection when appearing
from the gap at that instant.
[0020] In other words, when the apex of the projection forming the
opening is at the center of the opposite facing opening, the space
between the two apexes of the opposite facing projections gets
closer if the location to place the projection is not taken into
consideration and the space of the opening becomes narrow, and as a
result the probability of the tissue paper falling into the storage
box becomes higher.
[0021] Furthermore, in a rectangular parallelepiped storage box
with a long side and a short side, the long side becomes the
straight line parallel or substantially parallel to the (1') and
(a-a').
[0022] The paragraphs 0023 to 0032 mentioned below explain the
conventional common sheet storage box of FIG. 6 to FIG. 9.
[0023] FIG. 6 is a diagram illustrating an example of the
conventional tissue-paper storage box seen directly from above
wherein, (4) is a fixing sheet pasted near the opening similar to
(3) of FIG. 2, (5) is a crosswise cut (slit) provided in (4) to
function as the opening for removing and fixing the tissue
paper.
[0024] FIG. 7 is a diagram illustrating an example of the
conventional tissue-paper storage box seen from above without a
fixing sheet pasted on the tissue-paper removing opening wherein,
(6) is the projection provided in (3) to fix the tissue paper, (3)
is the line symmetric portion provided above and below the
tissue-paper removing opening for fixing the sheet by the
projection.
[0025] However, according to a method of fixing or removing the
tissue paper illustrated in FIG. 7, as the protruding projection is
small with a very sharp curve forming the projection and a position
held at the time of pulling out the tissue paper is not always at
the center, if the tissue paper is held above the projection, there
is a possibility of the paper falling into the storage box due to
the joint line of the next appearing tissue paper getting caught on
the portion where the projection is overlapped with the portion
where the strength is concentrated at the narrow range of the
tissue paper.
[0026] FIG. 8 is a diagram illustrating an example of the
conventional tissue-paper storage box without the fixing sheet
pasted on the tissue-paper removing opening seen from above
wherein, the upper and lower portions of the lateral opening (3)
have become narrower in shape by the projection (6), as viewed
toward the outer side. Due to this structure, a moving range of the
tissue paper is reduced and the tissue paper is fixed to the
opening by using a repulsive force when the tissue paper tries to
restore to a flat shape.
[0027] However, according to the method of removing or fixing the
tissue paper as illustrated in FIG. 8, at the time of pulling out
the tissue paper, the next tissue paper is pulled out in such a way
that it is placed above the tissue paper which is being pulled out
from the storage container; however, as mentioned above, at the
time of beginning to pull the tissue paper, the next appearing
tissue paper falls into the storage box as the apex of the
projection gets caught at the portion to which force is likely to
be applied near the joint line where the next appearing tissue
paper has reached.
[0028] According to the preceding paragraph 0027 mentioned above,
if the amount of the tissue paper in the storage box decreases, the
position of the next appearing tissue paper becomes relatively
lower as compared to the position of the rim of the opening and
thus the probability of tissue paper falling into the storage box
becomes higher as the joint line of the tissue paper can easily
abut on the projection of the rim of the opening.
[0029] Furthermore, the tissue paper from the box illustrated in
FIG. 8 is removed from the wider openings on the right and left of
the projection. At the time of removing the sheet, since the paper
is drawn by inserting a finger from either the left or right side
hole, it is obviously more difficult to take the paper out, because
it is not possible to take the paper out evenly from the right or
left, than a case where the center and its surrounding area are
drawn, and the opening has to be reduced to some extent to fix the
sheet, otherwise it is difficult to remove the tissue paper.
[0030] FIG. 9 is a diagram illustrating the conventional
tissue-paper storage box without the fixing sheet pasted at the
tissue-paper removing opening seen from above wherein, (6') is the
projection provided in (3) for fixing the tissue paper, (6'') is
the projection provided in opening (3) for fixing the tissue paper
by narrowing its moving range.
[0031] However, according to FIG. 9, the tissue paper is fixed by
narrowing the moving range but, similar to the preceding FIG. 8,
the opening has a shape having the apex of the projection near its
center, and the same problem described above occurs.
[0032] Furthermore, in conventional sheet storage boxes, the
projection is raised by inserting the folded line near the bottom
of the projection opposite the apex of the projection but, if the
projection is raised, the resistance at the time of removing a
sheet is reduced and when a sheet falls into the storage box, it
takes quite a bit of effort to pull it out since the projection
abuts on the finger and if the shape of the projection is
complicated, it requires even greater effort.
[0033] Paragraphs 0034 to 0047 and FIGS. 10 to 16 mentioned below
explain the tissue-paper storage box with a point symmetrical
opening.
[0034] If the projection is placed at the point symmetric position
of the opening, although the sheet is pulled from the front side of
the sheet or back side of the sheet which is present above the
opening, a wide space and narrow space are generated in the opening
space of either the right side ((1R) of FIG. 1)) or left side ((1L)
of FIG. 1) of one sheet and it is possible to provide the portion
that easily makes contact with the opening and the portion that
easily appears from the opening on one sheet. Furthermore, if the
shape of the projection is a smooth protruding curve, the sheet to
be pulled out can be easily made to slide.
[0035] FIG. 10 is a diagram illustrating an example of a
sheet-removing opening wherein, (7) is the sheet-removing opening
which is of a point symmetric shape and nonlinear symmetric shape
with respect to the (a-a') axis, (7a) is the long side of the
opening and (7b) is the short side of the opening.
[0036] Furthermore, the opening illustrated in FIG. 10 can be
considered to be of the shape such that it can be moved in the
clockwise or counterclockwise direction by considering the center
of the opening as the axis and the length or inclination of (7a)
and (7b) can be considered to be changed.
[0037] FIG. 11 is a diagram illustrating an example of the
sheet-removing opening, the shape of which has become line
symmetric with four sides of equal length illustrated in FIG. 10
wherein, the opening has a point symmetric shape and the rim of the
opening with an equal length of upper and lower (7R) and upper and
lower (7L) is line symmetric with respect to (a-a').
[0038] FIG. 12 is a diagram illustrating an example wherein, the
rim of the opening placed point symmetric with respect to the point
has formed a curve on the basis of FIG. 11 and is a point symmetric
opening with nonlinear symmetry.
[0039] Similar to FIG. 10, the opening illustrated in FIG. 11 and
FIG. 12 may be set in such a way to rotate it in the clockwise
direction or counterclockwise direction by considering the center
of the opening as the axis and the length or inclination of the rim
of the opening can be changed.
[0040] FIG. 13 is a diagram illustrating an example of the
sheet-removing opening wherein, an intersection of (a-a') and
(b-b') is (d), (d') is the circle near the center of the
tissue-paper removing opening, an opening (7) has a depression (10)
between the rims of the opening (9) and outside from the apex of
the projection (8), the line symmetric rim of the opening has the
nonlinear symmetric shape (11) by considering (a-a') of (8) as the
axis with the point symmetric sheet-removing opening.
[0041] Similar to the above opening, the opening having the shape
so that the opening can be rotated in the clockwise direction or
counterclockwise direction by considering (d) as the axis can be
considered.
[0042] FIG. 14 is a diagram illustrating an example of the
projected portion of the sheet-removing opening wherein, (12) shows
that the apex of the projection does not exceed (a-a'), (12') shows
that the apex of the projection is of the same height as that of
(a-a') and (12'') shows that the apex of the projection exceeds
(a-a').
[0043] If the shape of the opening is point symmetric with
nonlinear symmetry with respect to (a-a'), then a projection that
exceeds (a-a') can be used.
[0044] FIG. 15 is a diagram illustrating an example of the
sheet-removing opening wherein, the opening is such that the height
of the projection is perpendicular to the folding line of the sheet
i.e., perpendicular to (a-a') and the projection is formed from the
two straight lines (13) and (13').
[0045] Furthermore, the opening illustrated in FIG. 15 can be
considered to be the opening the same as mentioned above wherein,
the opening is set at the position to rotate it in the clockwise
direction or counterclockwise direction.
[0046] FIG. 16 is a diagram illustrating an example of a cover made
of a cloth to cover the sheet storage box wherein, (14) is the
cover main body, (14') is the sheet-removing opening provided on
(14), and there is an opening designed to insert the storage box
with rubber forming a ring at the bottom of (14). When the storage
box is inserted at any position from the opening designed to insert
the storage box, rubber of the opening designed to insert the
storage box is shrunk and the cover is fixed but, many other styles
also exist.
[0047] According to the point symmetric opening with nonlinear
symmetry, the spatial gap between the projection of the opening and
the rims of the opening opposite the projection across (a-a')
becomes wide and the sheet holding power by the rims of the opening
becomes weak since the sheet moves too far away from the rims of
the opening.
[0048] Hereinafter, "paragraph 0049 explains Japanese Published
Unexamined Patent Application No. 2008-137686," "paragraphs 0050 to
0053 explain Japanese Published Unexamined Patent Application No.
2003-040361," "paragraph 0054 explains Japanese Published
Unexamined Patent Application No. 2005-225563," "paragraphs 0055 to
0057 explain Japanese Published Unexamined Patent Application No.
2006-016069," "paragraph 0058 explains Japanese Published
Unexamined Patent Application No. 2006-027648," "paragraphs 0059
and 0060 explain Japanese Published Unexamined Patent Application
No. 2008-162623," "paragraphs 0061 and 0062 explain Japanese
Published Unexamined Patent Application No. 2002-104549" and
"paragraphs 0063 to 0065 explain Domestic Republication
WO2005/108238."
[0049] In Japanese Published Unexamined Patent Application No.
2008-137686, it has been explained that a pair of projections are
provided near the point symmetric position of the opening and the
projections allow the sheets to be fixed and smoothly removed.
However, the form mentioned in Japanese Published Unexamined Patent
Application No. 2008-137686 has drawbacks mentioned in the
preceding paragraph 0047 hereof wherein, the opening has only
single direction inclination with respect to the front side or back
side of the sheet and the opening needs to be extremely inclined to
reduce the space of the opening. When the cover made of cloth,
etc., is used to cover the sheet storage box as illustrated in FIG.
16, the central portion of the sheet becomes difficult to remove
from the opening and the sheets again slide and fall into the
storage box due to the poor method of removing the sheets.
[0050] In Japanese Published Unexamined Patent Application No.
2003-040361, it has been explained that the two pairs of flaps are
provided wherein, these two pairs of flaps are intended to be
different in shape when facing opposite each other and similar in
shape when placed diagonally and forms the point symmetry with
respect to the center point of the opening in the planar view
(Refer to page 4, left column, line 1 to line 5, and FIG. 2 of the
publication). Furthermore, Japanese Published Unexamined Patent
Application No. 2003-040361 also explains that, the space to insert
the finger tips is formed by a half space to insert the finger tip
positioned at one side and a half space to insert the finger tip
positioned at the other side across a horizontal central line
passing through the center of the opening and the half spaces to
insert the finger tips are formed by displacing them by a specified
distance respectively toward alternate sides (Refer to the page 4,
left column, line 15 to line 20 of the publication).
[0051] According to Japanese Published Unexamined Patent
Application No. 2003-040361, it is understood that picking sheets
one after another needs to be made easy by providing different
projections for the opening of a wet tissue storage box wherein, a
convex surface and a concave surface face each other and elastic
deformation must be made easy by partially thinning the projection
to pull out the sheets easily, since wet tissues tend to stick to
each other because of moisture and also tend to slip at the opening
of the storage box because of moisture.
[0052] In other words, according to Japanese Published Unexamined
Patent Application No. 2003-040361, a total two pairs of
projections having different shapes are formed at two opposite
corners of the opening wherein, one pair of projections has a sharp
angle and another pair of projections has a depression. The main
method for fixing the sheets is determined by partially pushing the
sheet by the projections and since the four projections are not
formed by convex curves, tissue paper cannot be fixed or moved
without rendering too much resistance to the tissue paper.
[0053] Furthermore, as regards the finger tip insertion space
present in the opening with the flap mentioned in Japanese
Published Unexamined Patent Application No. 2003-040361, the
opening with a flap mentioned in the "prior art in the
specification and FIG. 11 of Japanese Published Unexamined Patent
Application No. 2003-040361" also has the finger tip insertion
space and it is understood that the finger tip insertion space
mentioned in Japanese Published Unexamined Patent Application No.
2003-040361 is present only in the opening with a flap mentioned in
Japanese Published Unexamined Patent Application No.
2003-040361.
[0054] In Japanese Published Unexamined Patent Application No.
2005-225563, it has been mentioned that the sheet-removing opening
has a slit and the shape is point symmetric with nonlinear
symmetry. However, if the sheet is inserted too much into the slit
depending on the shape, the sheet is torn at the time of removing
and the space for removing the sheets become too large if a slit is
not used and this resulted in a drawback similar to the drawback
mentioned in paragraph 0047 hereof.
[0055] In Japanese Published Unexamined Patent Application No.
2006-016069, it has been mentioned that "the slit on the nonlinear
line consists of a substantially circular curve formed
substantially at the center of the upper plate and a straight line
of specified length toward a substantially corner portion of the
upper plate from both ends of the curve (Refer to page 3, line 50
to page 4, line 3 of the publication). However, this opening has a
shape such that it always comes in contact when projections are
formed on the same plane.
[0056] In Japanese Published Unexamined Patent Application No.
2006-016069, it has been mentioned in paragraph 0027, page 6 of the
publication that the flap is closed when the tissue paper is pulled
out and it has been mentioned in paragraph 0029, page 7 of the
publication that if the flap loses resistance it does not work
properly. There are two apexes of projections on one side rim and
one apex on the opposite side rim and if the flap does not work
properly, the tissue paper may get caught near the apex of the
projection.
[0057] In Japanese Published Unexamined Patent Application No.
2006-016069, it has been mentioned in paragraph 0025, page 6 of the
publication that the flap is slightly opened and fingers are
inserted inside. However, the flap of the opening is like a
covering lid and the flap may get in the way of fingers at the time
of removing tissue paper in the storage box which makes it
difficult to remove the tissue paper. Care must be exercised so as
not to open the flap excessively and lose return of the flap.
[0058] According to Japanese Published Unexamined Patent
Application No. 2006-027648, a pair of point symmetric projections
is present near the center of the opening; however, the tissue
paper must be removed from either the right opening space or left
opening space due to the narrow center of the opening. Furthermore,
the central projection may hinder movement of the tissue paper.
[0059] In Japanese Published Unexamined Patent Application No.
2008-162623, it has been mentioned on the page 2, claim 1, line 10
to line 12 of the publication that "the rim of the removing opening
has . . . a pair of first rim portions facing each other across a
longitudinal central line."
[0060] In other words, the opening is such that, at the time of
beginning to pull out the sheets from the storage box, the next
sheet is likely to get caught as the apex of the projection is
present near the portion to which force is likely to be applied on
the sheet and since the wide finger tip insertion space cannot be
provided in the center of the opening as it is not point symmetric,
it requires quite a bit of effort to insert fingers in the storage
box from the opening when the sheet falls into the storage box.
[0061] In Japanese Published Unexamined Patent Application No.
2002-104549, it has been mentioned on page 2, left column, claim 1,
line 10 to line 12 of the publication that "Each rim portion facing
the opening, has a plurality of curve shape convex portions formed
by flat surfaces projecting toward inside the opening" and
according to the diagram, it is understood that the plurality of
projections present in the opening are present at the position the
same as or similar to the line symmetry.
[0062] In other words, if there are two pairs of projections
opposite each other with acute angles, the shape similar to or the
same as that mentioned in the preceding FIG. 7 is formed and the
same problems as that mentioned in the preceding FIG. 7 occur. If
there are more than two pairs of projections, although there is no
problem with wet sheets, the movement of the next appearing dry
tissue paper is readily hindered.
[0063] In Domestic Republication WO2005/108238, it has been
mentioned on page 2, claim 1, line 7 to line 11 of the publication
that "the removing opening has . . . a pair of supporting portions
to support . . . and the rim of each of the support portions is
facing toward the center in the longitudinal direction and forms a
uniform bulge with a gentle curvature." From this description it is
understood that, this portion is the same as or similar to the
projections described in FIG. 8 and FIG. 9.
[0064] Furthermore, in Domestic Republication WO2005/108238, it has
been mentioned on page 2, claim 8 and FIG. 7 of the publication
that, a pair of projections has a wavy line shape and this portion
has problems the same as or similar to the problems described in
paragraphs 0061 and 0062 hereof.
[0065] Furthermore, in Domestic Republication WO2005/108238, it has
been mentioned on page 2, line 12 to line 14 of the publication
that "can be raised . . . of the rim of the supporting portion" and
it has been mentioned on page 2, line 48 to line 50 of the
publication that "at the outer location in the width direction of
the rim of the supporting portion, . . . , the supporting portion
can be raised upward respectively by considering a compressed line
designed for raising as the raising line." From this description it
is understood that although it is indicated to raise the
projection, it takes quite a bit of effort to take the tissue paper
since the projection abuts on a hand or a finger when the tissue
paper decreases in number and falls into the storage box if the
projection is raised.
[0066] As mentioned above, although pasting the sheet-fixing sheet
on the sheet-removing opening is suitable for removing the sheets,
it is wasteful from the point of view of resources.
[0067] As mentioned above, when the sheet-fixing sheet is not
pasted on the opening of the sheet storage box, the fixing of
sheets becomes weaker as the opening itself becomes larger due to
the excessively wide rim of the opening and when the rims of the
opening are made too close, the rim of the opening partially
becomes smaller and the resistance to remove the sheets becomes too
large.
[0068] In order to solve the above-mentioned problems of the
conventional sheet storage boxes, an object of the present
invention is to effectively configure a portion by which the sheet
can be stuck smoothly and a portion where the sheet can be easily
taken from the opening by making the shape of the rim of the
sheet-removing opening of the sheet storage box such that the
movement of the sheet is reduced by adequately reducing the spatial
area of the opening and converting the rim of the opening to a
convex shape smooth curve so as to slide the sheets easily and by
changing the height of the projection of similarly shaped
face-to-face rims of the opening of two pairs of main rims of the
opening at opposite corners.
SUMMARY OF THE INVENTION
[0069] To achieve the object mentioned above, there is provided a
sheet storage box of the present invention, wherein [0070] two
pairs of smooth convex shape curved opening rims are provided at
corners by considering the center of the opening as a center point,
wherein [0071] the two pairs of the opening rims are set one after
the other and the height of the apexes of the opening rims present
at the corners is the same or substantially the same and the height
of the apexes of the adjacent or opposite opening rim is different,
[0072] an open space is formed as a result of constant absence of
the opening rim or lid at three places i.e., within a circle of 3
mm in diameter at the center of the opening and within the circle
of 2 mm in diameter at both ends of the opening, wherein [0073] the
two pairs of smooth convex shape curved opening rims are formed to
be positioned in the spaces at the three places, [0074] the opening
rims forming the space at both ends of the opening are the
depressions placed opposite each other across the convex shape
curved opening rims and the rims of the opening forming the space
including the center of the opening have depressions between the
adjacent convex shape curved rims of the opening present at both
sides and these depressions are placed opposite each other at the
corners of the rims of the opening forming the space including the
center of the opening, and [0075] the opening rim is provided which
takes the shape of nonlinear symmetry when the opening is rotated
at 180 degrees by considering the straight line passing through the
center of the opening, which is parallel or substantially parallel
to the average folded line of sheets stored to remove sheets from
the opening, as the axis and takes the shape of point symmetry or
substantially point symmetry when the opening is rotated at 180
degrees by considering the center of the opening as the axis.
[0076] Furthermore, the sheet-removing opening of the sheet storage
box of the present invention is characterized in that [0077] the
depressions opposite each other located at the corners of the
opening rims forming the space including the center of the opening
as mentioned in the preceding paragraph 0070 are [0078] depressions
formed by joining the adjacent smooth convex shape curves by using
the folded line shape or folded convex shape curves.
[0079] The sheet-removing opening of the sheet storage box
according to the present invention is characterized in that, in the
depressions opposite each other located at the corners of the
opening rims forming the space including the center of the opening
as mentioned in the preceding paragraph 0070, [0080] a depression
being depressed by 1 cm or more in the direction parallel to the
folded line of a sheet is absent at the lower side than the center
rim of the opening of smooth convex shape curved opening rims which
support the sliding of the sheet.
[0081] Furthermore, the sheet-removing opening of the sheet storage
box of the present invention is characterized in that the
depressions opposite each other located at the corners of the
opening rims forming the space including the center of the opening
as mentioned in the preceding paragraphs 0070 to 0072 comprise
[0082] one or a plurality of pairs of convex shape curved
projections shorter than the height of the apexes of the convex
shape curved opening rims present at both sides at the opposite
corners of the depression forming the space including the center of
the opening.
[0083] Furthermore, the sheet-removing opening of the sheet storage
box of the present invention is characterized in that the pair of
depressions which forms the opening rims outside the circle of 2 mm
in diameter present at both ends of the opening as described in the
preceding paragraph 0070 are [0084] depressions themselves having
the shape including the concave shape curve.
[0085] According to the operation as mentioned in the preceding
paragraph 0070, the curved opening rims become the same kind of
smooth convex shape and as there is no retroflexion of the
depression in the projected portion used to slide the sheet, the
projected opening rim and sheet come in contact with each other and
the resistance can be decreased. There does not exist a large gap
between the projections and the depressions of the opening rims
opposite the projection, and therefore, the movement of the sheet
can be suppressed at the time of pulling out the sheet. The sheets
can be fixed smoothly by reducing the space pushed by the
opening.
[0086] According to the operation as mentioned in the preceding
paragraph 0071, as the joint portion provided through the contact
between adjacent smooth convex shape curved opening rims suddenly
becomes narrow, the sheets get stuck in the depression at the time
of removal.
[0087] According to the operation as mentioned in the preceding
paragraph 0072, as the depression present at the lower side than
the center rim of the opening of smooth convex shape curved opening
rims, which supports sliding of the sheet, does not have a
depression being depressed by 1 cm or more in the direction
parallel to the folded line of a sheet, the sheet is prevented from
being guided toward an opening not intended.
[0088] According to the operation as mentioned in the preceding
paragraph 0073, while pulling the sheet to the opening rim, a small
folding line nearly similar to the shape of the projection can be
put into the sheet by using the smooth projections on both sides
and a small subordinate projection between them.
[0089] According to the operation as mentioned in the preceding
paragraph 0074, the pair of depressions present at both ends of the
opening itself are the depressions of shape including the concave
shape curve due to which the ends of the sheet can be fixed
smoothly.
[0090] According to the effect of the preceding paragraph 0070
mentioned above, the sheet can be pulled out smoothly and it can be
fixed in such a way that it is difficult for the sheet to fall into
the storage box.
[0091] According to the effect of the preceding paragraph 0071
mentioned above, the sheet can be pulled out in such a way that the
sheet gets caught in the opening.
[0092] According to the effect of the preceding paragraph 0072
mentioned above, the movement of the sheet can be suppressed as the
sheets are prevented from being guided toward an opening not
intended.
[0093] According to the effect of the preceding paragraph 0073
mentioned above, as the small folding line nearly similar to the
shape of the projection can be put into the sheet by using the
smooth projections on both sides and a small subordinate projection
between them, the sheet can be raised easily.
[0094] According to the effect of the preceding paragraph 0074
mentioned above, as the shape of both ends of the opening is made
into the shape including the concave curve shape, the drawback is
eliminated that, if both ends of the opening are an acute angle,
the sheet gets stuck and the movement of the sheet is hindered, and
the sheet can be caught smoothly in the depression due to the
restoring force of the sheet itself.
DETAILED DESCRIPTION OF THE INVENTION
[0095] Embodiments of the present invention will be described below
on the basis of FIG. 17 to FIG. 33.
[0096] FIG. 17 is a diagram illustrating an example of
sheet-removing opening rims of line symmetric shape by considering
(a-a') as the axis to explain the present invention wherein, (15)
is the surface of the sheet-removing opening of the sheet storage
box, (16) is the sheet-removing opening, (17) is the rim of the
opening formed into a smooth convex shape curve, (18) is the
depression of the opening rims forming the space including the
center of the opening and (19) are the depressions formed at both
ends of the opening.
[0097] FIG. 17 shows an opening having two pairs of the opening
rims with opposite convex shape curves of (17) and the height of
the apexes of the opposite convex shape projections is the same.
However, it does not have a shape with which only from one side the
sheet can be easily removed from the opening and at the other side
the sheet can be fixed easily, due to which the fixing of the sheet
becomes loose.
[0098] FIG. 18 is a diagram illustrating an example of the
sheet-removing opening of the present invention wherein, the rim of
the opening is at the position after rotating the preceding FIG. 17
in a counterclockwise direction, (15') is the surface of the
sheet-removing opening of the sheet storage box of the present
invention, (16') is the sheet-removing opening of the present
invention, (17') is the convex shape curved rim of the opening of
the present invention which is at a high level as compared to
(17''), (17'') is the convex shape curved rim of the opening of the
present invention which is at a low level as compared to (17'),
(18') are the depressions of the present invention forming the
space including the center of the rim of the opening, (19') are the
depressions of the present invention formed at the opposite ends of
the rims of the opening.
[0099] The opening can also be formed by rotating the opening
illustrated in FIG. 17 in a clockwise direction. There is no limit
on the styles of the opening as long as the conditions of the
present inventions are fulfilled.
[0100] FIG. 19 is a diagram illustrating an example of the
sheet-removing opening of the present invention which is the same
as in FIG. 18 mentioned above. However, (20) is the space with an
open portion within the circle of 3 mm in diameter present at the
center of the opening mentioned in claim 1 of the present
invention, (21) is the space with open portion within the circle of
2 mm in diameter present at both ends of the opening, (21) are the
spaces opposite each other across the convex shape curved rims of
the opening, furthermore, (20) has the depressions present between
the adjacent convex shape curved rims of the opening which are
present at both sides and these depressions are the spaces formed
inside the depressions which are opposite each other at the corners
of the rims of the opening forming the space including the center
of the opening.
[0101] FIG. 20 is a diagram illustrating an example of the
sheet-removing opening mentioned in claim 3 of the present
invention wherein, (22) is the depression that does not have a
depression being depressed by 1 cm or more in the direction
parallel to the folded line of a sheet at the lower side than the
center rim of the opening of smooth convex shape curved opening
rims (17') and (17'') which support the sliding of the sheet. It
suffices if an arrow between the dotted straight lines does not
enter below (17') by 1 cm. The same applies to (17'').
[0102] If (22) is large, the sheet is prevented from being guided
to any direction and therefore, it is preferable that the
depression entering below (17') and (17'') are not present.
[0103] FIG. 21 is a diagram illustrating an example of the
sheet-removing opening of the present invention wherein, (17') is
the convex shape curved rim of the opening of the present invention
present at a high level, (17'') is the convex shape curved rim of
the opening of the present invention present at a low level, (18')
are the depressions of the present invention and (19') are the
openings with the depressions present at both ends of the opening
of the present invention.
[0104] FIG. 22 is a diagram illustrating an example of the
sheet-removing opening of the present invention wherein, the
opening is formed by rotating FIG. 21 in the counterclockwise
direction, however, the opening can be formed by rotating it in the
clockwise direction as long as the height of the projections
illustrated in FIG. 21 does not become equal. There is no limit on
the styles.
[0105] In FIG. 22, (23) is a step formed by (19') and (17'), (24)
is a step formed by (19') and (17''). If the step is present at
(17') side, the sheet can be fixed easily while the projected
portion of (17') is concealed below the sheet.
[0106] FIG. 23 is a diagram illustrating an example of a portion of
the sheet-removing opening as mentioned in claim 2 and claim 4 of
the present invention wherein, (1) illustrated by a dotted line is
the tissue paper, (25) is the depression of the present invention
formed by contacting the adjacent smooth convex shape curves by
using the folded convex shape curve or folded line shape curves,
(26) is the curved shape projection mentioned in claim 4 which is
present at a lower level than the height of (17') and (17''), (25')
is the depression formed adjacent to (26), (A) is the rim of the
opening mentioned in claim 2, and (B) and (C) are rims of the
opening mentioned in claim 4.
[0107] By passing the sheet through the vicinity of (25) or (25'),
the sheet can be inserted in the narrow portion of the opening and
by considering this portion as a force point, both ends of the
sheet can be moved to the end of the opening. Furthermore, due to
the shape of the opening of the present invention, although the
sheet has not reached (19'), it can be fixed.
[0108] Furthermore, if the count of (26) is increased too much, an
adhesion of the sheet to the rims of the opening becomes poor and
thus it is better to have up to about two each on the upper and
lower sides.
[0109] FIG. 24 is a diagram illustrating an example of a simplified
diagram when (B) mentioned in the preceding FIG. 23 has been
operated wherein, (1'') are the mountain fold strings formed in the
sheet and the sheet can be easily raised by hollowing the space
between the strings.
[0110] FIG. 25 is a diagram illustrating an example of the
sheet-removing opening having (A) mentioned in FIG. 23 wherein,
(25) can draw the sheet when sheets are to be pulled out.
[0111] FIG. 26 is a diagram illustrating the opening formed at a
position when the sheet-removing opening illustrated in FIG. 25 is
rotated in the counterclockwise direction wherein, the opening is
formed in such a way that (17') is concealed below the sheet and
sheet is caught from below and can be held easily.
[0112] FIG. 27 shows the sheet-removing opening including (17') and
(17'') illustrated in FIG. 18 as mentioned in claim 2.
[0113] FIG. 28 is a diagram illustrating an example of the
sheet-removing opening with (B) illustrated in FIG. 23.
[0114] FIG. 29 is a diagram illustrating the opening formed at a
position when the sheet-removing opening illustrated in FIG. 28 is
rotated in a counterclockwise direction.
[0115] FIG. 30 is the sheet-removing opening including (17') and
(17'') illustrated in FIG. 18 as mentioned in claim 4.
[0116] FIG. 31 shows a diagram illustrating an example of the
sheet-removing opening with (C) illustrated in FIG. 23.
[0117] FIG. 32 is a diagram illustrating the opening formed at a
position when the sheet-removing opening illustrated in FIG. 31 is
rotated in a counterclockwise direction.
[0118] FIG. 33 shows the sheet-removing opening including (17') and
(17'') illustrated in FIG. 18 as mentioned in claim 4.
[0119] As mentioned above, according to the embodiments of the
present invention, the sheets which are effectively fixed and
smoothly removed can be obtained.
[0120] The embodiments mentioned above are described to explain the
present invention and according to the claims of the present
invention, there is no limit on the types of the embodiments such
as shape, material and structure.
EXAMPLES
[0121] FIG. 34 is a diagram illustrating an example of a top lid
provided on the sheet-removing opening of the present invention
wherein, (27) is the top lid which can be detached from the
vicinity of the center of the opening by dividing into half by
using a perforated line, (28) is a thin portion of the top lid and
(29) is a portion of the top lid with a perforated line wherein a
hole can be made by inserting a finger.
[0122] The portion of (28) wherein, the top lid has become thin is
made easier to move away from the surrounding perforated line by
elongating the cut portion of the perforated line of (15') and the
top lid is made easier to move away by completely cutting the tip
portion of the acute angle portion. Furthermore, double perforated
lines may be provided. There is no limit on types such as shape,
interval, and number of perforated lines.
[0123] FIG. 35 shows an example of the sides which forms the
storage box that can be used in the present invention wherein, (A)
is a diagram of a portion of a flattened storage box seen from the
front side, (B) is the cross sectional diagram of (A), (C) is a
diagram wherein, right and left inner surfaces of (B) are moved
closer and fold down wherein, (30) is the front side surface of the
storage box, (31) is a concave shape groove set up in (30), (30')
is an inner surface of the storage box and (31') is a convex shape
line placed on the opposite side of (31).
[0124] The side of the storage box may be formed by just folding
down the flat surface once or it may be of the shape mentioned
above in the preceding paragraph 0113. Furthermore, the shape of
the storage box may be rectangular parallelepiped, cube or curved
shape formed by curling up the sides or corners. There are various
shapes formed by a polyhedron formed of a straight surface or
curved surface and there is no limit on the styles.
[0125] FIG. 36 is a diagram illustrating an example of the portion
of the sheet-removing opening as illustrated in FIG. 23 with some
portions changed wherein, (32) is the portion with (25) or (25')
illustrated in FIG. 23 changed to a smooth concave shape, (A) is
the portion with a space between (17') and (17'') changed to (32),
(B) is the portion with (25') changed to (32) and (C) is the
portion with (25') present between (26) changed to (32).
[0126] The depression with a shape mentioned in the above (32) is
not a desirable shape as the pulling force of the sheet at the time
of pulling the sheet out is less.
[0127] FIG. 37 is a diagram illustrating an example wherein (25) is
formed by contacting adjacent (17) mentioned in FIG. 17. In the
opening of this shape, since (17) facing each other are of same
height, the rims of the opening cannot be too close to (a-a') as
the appearing tissue paper cannot make contact with the rims of the
opening properly and therefore this is less effective as compared
to the shape of the rims of the opening of the present
invention.
[0128] FIG. 38 is a diagram illustrating an example of a pair of
curved shape projections smaller than (17) provided between the
adjacent (17) illustrated in FIG. 17 and with this shape also the
effect the same as mentioned in the preceding paragraph 0117 is
obtained.
[0129] FIG. 39 is a diagram illustrating an example of two pairs of
curved shape projections smaller than (17) provided between the
adjacent (17) illustrated in FIG. 17, and with this shape also the
effect the same as mentioned in the preceding paragraph 0117 is
obtained.
[0130] FIG. 40 is a diagram illustrating an example of the rims of
the opening forming the spaces (19') at both ends of the opening of
the present invention. Although the above-mentioned depression
forming both ends of the opening of the present invention is formed
by the arc shape or full arc shape curve, (A) shows the depression
formed by combining the curve shape and straight line shape, (B)
shows the depression formed by changing the end of the rims of the
opening to the straight line shape and (C) is formed by the curved
shape depression at both ends and the depression including the
projection at the center.
[0131] In FIG. 40, (A) shows the effect most similar to the effect
of (19) used in the explanation above.
[0132] FIG. 41 is a diagram illustrating an example of the opening
of the storage box of the present invention wherein, (n) and (m)
are the symbols to indicate the ratio of the width of (17') and
(17''). As long as (17') and (17'') fulfill the above-mentioned
conditions of the present invention, the ratio of (n) and (m) may
be the same or different without limiting the style.
[0133] The embodiments of the present invention are as follows.
1. As long as the tissue-paper removing opening of the present
invention fulfills the conditions of the present invention, the
ratio of the width of the projection running parallel to (a-a')
described in claim 1 of the present invention may be the same or
different without limiting the style. 2. As long as the configured
location of the subordinate projection mentioned in claim 4
fulfills the conditions of the present invention, it may be at a
line symmetric position or point symmetric position without
limiting the style. 3. There are various styles of the formation of
the opening of the present invention such as forming the opening by
slightly widening the pair of depressions present on the rims of
the opening forming the space including the center of the opening
so that it is easy to insert the finger tips or a combination with
other effective shapes may be used to form the opening. 4. A cut to
tuck the sheet and convexity or concavity giving resistance to the
sheet may be provided at the rims of the opening of the present
invention. A valley fold line may be provided using the convexity
or concavity provided in the storage box in order to easily raise
the projections of the rims of the opening of the present
invention. The cut may be provided on the surface of the storage
box below the projection of the present invention to soften the
projection itself of the present invention. A perforated line and
folded line may be provided to form the projection to be raised in
the storage box by tucking the portion of the storage box separated
by using a perforated line near the center of the bottom of the
storage box to push the sheet upward used in the storage box of the
present invention. The perforated line may be provided to easily
break or collapse the storage box of the present invention. The
opening of the present invention may be used in the storage box
with another shape and effect. Other modifications can be adopted.
There is no limit on styles in which the manufacturers may combine
any other effective structure or material for the opening or the
storage box of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0134] FIG. 1A is a diagram illustrating an expanded sheet.
[0135] FIG. 1B is a diagram illustrating a half folded sheet along
the folded line (1').
[0136] FIG. 2 is a diagram of an example of the conventional
tissue-paper storage box seen from obliquely upward.
[0137] FIG. 3 is a diagram of an example of the tissue-paper
removing opening.
[0138] FIG. 4 is a diagram of an example when pulling out the
tissue paper from the opening.
[0139] FIG. 5A is a diagram of the tissue-paper storage box seen
from obliquely upward.
[0140] FIG. 5B is a cross sectional diagram of the storage box cut
by a straight line parallel to (b-b').
[0141] FIG. 6 is a diagram of an example of the conventional
tissue-paper storage box seen from directly above.
[0142] FIG. 7 is a diagram of an example of the conventional
tissue-paper storage box seen from above.
[0143] FIG. 8 is a diagram of an example of the conventional
tissue-paper storage box seen from above.
[0144] FIG. 9 is a diagram of an example of the conventional
tissue-paper storage box seen from above.
[0145] FIG. 10 is a diagram of an example of the sheet-removing
opening.
[0146] FIG. 11 is a diagram of an example of the sheet-removing
opening.
[0147] FIG. 12 is a diagram of an example of curved shape rim of
the opening placed at the point symmetric position.
[0148] FIG. 13 is a diagram of an example of the sheet-removing
opening.
[0149] FIG. 14 is a diagram of an example of the projected portion
of the sheet-removing opening.
[0150] FIG. 15 is a diagram of an example of the sheet-removing
opening.
[0151] FIG. 16 is a diagram of an example of a cover made of cloth
to cover the sheet storage box.
[0152] FIG. 17 is a diagram of an example of line symmetric rim of
the sheet-removing opening.
[0153] FIG. 18 is a diagram of an example of the sheet-removing
opening of the present invention.
[0154] FIG. 19 is a diagram of an example of the sheet-removing
opening of the present invention.
[0155] FIG. 20 is a diagram of an example of the sheet-removing
opening of the present invention.
[0156] FIG. 21 is a diagram of an example of the sheet-removing
opening of the present invention.
[0157] FIG. 22 is a diagram of an example of the sheet-removing
opening of the present invention.
[0158] FIG. 23A is a diagram illustrating the rim of the opening
mentioned in claim 2.
[0159] FIG. 23B is a diagram illustrating the rims of the opening
mentioned in claim 4.
[0160] FIG. 23C is a diagram illustrating the rims of the opening
mentioned in claim 4.
[0161] FIG. 24 is a diagram of an example of the operation of B of
FIG. 23.
[0162] FIG. 25 is a diagram of an example of the sheet-removing
opening of the present invention.
[0163] FIG. 26 is a diagram of an example of the sheet-removing
opening of the present invention.
[0164] FIG. 27 is a diagram of an example of the sheet-removing
opening of the present invention.
[0165] FIG. 28 is a diagram of an example of the sheet-removing
opening of the present invention.
[0166] FIG. 29 is a diagram of an example of the sheet-removing
opening of the present invention.
[0167] FIG. 30 is a diagram of an example of the sheet-removing
opening of the present invention.
[0168] FIG. 31 is a diagram of an example of the sheet-removing
opening of the present invention.
[0169] FIG. 32 is a diagram of an example of the sheet-removing
opening of the present invention.
[0170] FIG. 33 is a diagram of an example of the sheet-removing
opening of the present invention.
[0171] FIG. 34 is a diagram of an example of a top lid provided on
the sheet-removing opening of the present invention.
[0172] FIG. 35A is a diagram of a portion of a flattened storage
box seen from the front side.
[0173] FIG. 35B is the cross sectional diagram of FIG. 35A.
[0174] FIG. 35C is a diagram wherein, right and left inner surfaces
of FIG. 35B are moved closer and fold down.
[0175] FIG. 36A is a diagram of the portion with a space between
(17') and (17'') changed to (32).
[0176] FIG. 36B is a diagram of the portion with (25') changed to
(32).
[0177] FIG. 36C is a diagram of the portion with (25') present
between (26) changed to (32).
[0178] FIG. 37 is a diagram of an example of the sheet-removing
opening with main projection having line symmetric position.
[0179] FIG. 38 is a diagram of an example of the sheet-removing
opening with main projection having line symmetric position.
[0180] FIG. 39 is a diagram of an example of the sheet-removing
opening with main projection having line symmetric position.
[0181] FIG. 40A shows the depression formed by combining the curve
shape and straight line shape.
[0182] FIG. 40B shows the depression formed by changing the end of
the rims of the opening to the straight line shape.
[0183] FIG. 40C shows the depression formed by the curved shape
depression at both ends and the depression including the projection
at the center.
[0184] FIG. 41 is a diagram of an example of the sheet-removing
opening of the present invention.
REFERENCE SIGNS LIST
[0185] 1: Sheet,
[0186] 1': Folded line of a sheet
[0187] 2: Surface with an opening
[0188] 2': Top lid of the opening
[0189] 3: Tissue-paper removing opening
[0190] 3'a and 3'b: Rims of the opening
[0191] 4: Fixing sheet pasted near the opening
[0192] 5: Slit provided in the fixing sheet pasted near the
opening
[0193] 6, 6', 6'': Projection for fixing the tissue paper
[0194] 7: Nonlinear symmetric and point symmetric sheet-removing
opening
[0195] 7a: Long side of the opening
[0196] 7b: Short side of the opening,
[0197] 7L and 7R: Rims of the opening
[0198] 8: Projection
[0199] 9: Rims of the opening
[0200] 10: Depression
[0201] 11: Rims of the opening
[0202] 12, 12', 12'': Apex of the projection
[0203] 13, 13': Projection forming the opening
[0204] 14: Cover main body
[0205] 14': Sheet-removing opening
[0206] 15: Surface of the sheet-removing opening
[0207] 15': Surface of the sheet-removing opening of the present
invention
[0208] 16: Sheet-removing opening
[0209] 16': Sheet-removing opening of the present invention
[0210] 17: Rims of the opening
[0211] 17': Rim of the opening of the present invention with long
height
[0212] 17'': Rim of the opening of the present invention with short
height
[0213] 18: Depression
[0214] 18': Depression of the present invention
[0215] 19: Depression
[0216] 19': Depression of the present invention
[0217] 20: Open space within the circle of 3 mm at the center of
the opening
[0218] 21: Open space within the circle of 2 mm at both ends of the
opening
[0219] 22: Concave depression at lower portion of rim of the
opening of the present invention with long height and rim of the
opening of the present invention with short height
[0220] 23: Step of rim of the opening of the present invention with
long height and depression of the present invention
[0221] 24: Step of rim of the opening of the present invention with
short height and depression of the present invention
[0222] 25: Folded line shape or folded convex shape curved
depression
[0223] 25': Depression formed adjacent to curved shape projection
at lower level than the height of rim of the opening of the present
invention with long height and rim of the opening of the present
invention with short height
[0224] 26: Curved shape projection at lower level than the height
of rim of the opening of the present invention with long height and
rim of the opening of the present invention with short height
[0225] 27: Top lid that can be detached by using perforated
line
[0226] 28: Thin portion of the top lid
[0227] 29: Circular top lid portion with perforated line
[0228] 30: Front surface of the storage box
[0229] 30': Inner surface of the box
[0230] 31: Concave shape groove
[0231] 31': Convex shape line
[0232] 32: Smooth concave shape depression
[0233] A-A': Breadth of the storage box
[0234] B-B': Length of the storage box
[0235] C-C': Height of the storage box
[0236] d: Portion near the center of the opening, intersection of
a-a' and b-b'
[0237] d': Circle near the center of the tissue-paper removing
opening
[0238] a-a': Line parallel to the folding line of the sheet passing
through the center of the opening
[0239] b-b': Straight line passing through the center of the
opening perpendicular to a-a'
[0240] x: Hand
[0241] e and e': Portion of the tissue paper to which force is
likely to be applied
[0242] s: Line parallel to b-b' and passing through the apex of the
projection of the opening
[0243] t: Intersecting line perpendicular to line parallel to b-b'
and passing through the apex of the projection of the opening
[0244] n, m: Ratio of rim of the opening of the present invention
with long height and rim of the opening of the present invention
with short height
* * * * *