Sheet storage box

Abstract

Conventional sheet storage boxes have problems that the sheet storage box with a sheet-fixing sheet pasted on the sheet-removing opening is wasteful from the point of view of resources and that, in the case of the sheet storage box without the sheet-fixing sheet pasted on the opening, the fixing of sheet 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. To solve the above problems of the conventional sheet storage boxes, the present invention provides a sheet-removing opening by effectively forming the portion to remove the sheet easily from the opening and the 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.

Claims

1. A sheet storage box, wherein: the sheet storage box is for storing sheets that are folded in a parallel or substantially parallel direction, the direction defining an average sheet fold line; and an open space is formed on a surface of the sheet storage box as a sheet-removing opening defined by a rim for removing sheets, the rim of the sheet-removing opening consisting of: a first corner portion; a second corner portion; a third corner portion; a fourth corner portion; a first rim region connecting the first corner portion and the second corner portion; a second rim region connecting the second corner portion and the third corner portion; a third rim region connecting the third corner portion and the fourth corner portion; and a fourth rim region connecting the fourth corner portion and the first corner portion; wherein: a line segment that connects the first corner portion and the third corner portion defines a first line segment; a line segment that connects the second corner portion and the fourth corner portion defines a second line segment; an intersection of the first line segment and the second line segment defines a center of the sheet-removing opening; a line that is parallel or substantially parallel to the average sheet fold line and that passes through the center of the sheet-removing opening defines a third line segment; the second corner portion is a concave shape curve projecting towards the outside of the sheet-removing opening from the center of the sheet-removing opening; the fourth corner portion is a concave shape curve projecting towards the outside of the sheet-removing opening from the center of the sheet-removing opening; the first rim region is a convex shape curve projecting towards the second line segment, the convex shape curve defining a shape and a size of the first rim region; the second rim region is a convex shape curve projecting towards the second line segment, the convex shape curve defining a shape and a size of the second rim region; the third rim region is a convex shape curve projecting towards the second line segment, the convex shape curve defining a shape and a size of the third rim region; the fourth rim region is a convex shape curve projecting towards the second line segment, the convex shape curve defining a shape and a size of the fourth rim region; the shape of the first rim region and the shape of the third rim region are point-symmetric with each other with respect to the center of the sheet-removing opening; the shape of the second rim region and the shape of the fourth rim region are point-symmetric with each other with respect to the center of the sheet-removing opening; the closest distance between the first rim region and the second line segment defines a first rim region distance; the closest distance between the second rim region and the second line segment defines a second rim region distance; the closest distance between the third rim region and the second line segment defines a third rim region distance; the closest distance between the fourth rim region and the second line segment defines a fourth rim region distance; the first rim region distance and the third rim region distance are the same or substantially the same as each other; the second rim region distance and the fourth rim region distance are the same or substantially the same as each other; the position of the first corner portion and the position of the third corner portion are point-symmetric with each other with respect to the center of the sheet-removing opening; the first corner portion consists of two convex shape curves, both of which project towards the second line segment, the two convex shape curves defining first corner portion sizes; the third corner portion consists of two convex shape curves, both of which project towards the second line segment, the two convex shape curves defining third corner portion sizes; each of the first corner portion sizes is smaller than the size of the first rim region and the size of the fourth rim region; each of the third corner portion sizes is smaller than the size of the second rim region and the size of the third rim region; the shape of the entire sheet-removing opening is not line-symmetric with respect to the third line segment; and the shape of the entire sheet-removing opening is point-symmetric or substantially point-symmetric with respect to the center of the sheet-removing opening.

2. The sheet storage box according to claim 1, wherein: the two convex shape curves of the first corner portion form an angle where they connect with each other; the first corner portion and the first rim region form an angle where they connect with each other; the second rim region and the third corner portion form an angle where they connect with each other; the two convex shape curves of the third corner portion form an angle where they connect with each other; the third corner portion and the third rim region form an angle where they connect with each other; and the fourth rim region and the first corner portion form an angle where they connect with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

(1) Embodiments of the present invention will be described below on the basis of FIG. 17 to FIG. 33.

(2) 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.

(3) 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.

(4) 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.

(5) 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.

(6) 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, (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.

(7) FIG. 20 is a diagram illustrating an example of the sheet-removing opening 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″).

(8) 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.

(9) 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.

(10) 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.

(11) 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.

(12) 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.

(13) 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.

(14) 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.

(15) 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.

(16) 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.

(17) 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.

(18) FIG. 27 shows the sheet-removing opening including (17′) and (17″) illustrated in FIG. 18 as mentioned in claim 2.

(19) FIG. 28 is a diagram illustrating an example of the sheet-removing opening with (B) illustrated in FIG. 23.

(20) 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.

(21) FIG. 30 is the sheet-removing opening including (17′) and (17″) illustrated in FIG. 18.

(22) FIG. 31 shows a diagram illustrating an example of the sheet-removing opening with (C) illustrated in FIG. 23.

(23) 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.

(24) FIG. 33 shows the sheet-removing opening including (17′) and (17″) illustrated in FIG. 18.

(25) As mentioned above, according to the embodiments of the present invention, the sheets which are effectively fixed and smoothly removed can be obtained.

(26) 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

(27) 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 to 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.

(28) 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.

(29) 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).

(30) 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.

(31) 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).

(32) 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.

(33) 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.

(34) 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.

(35) 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.

(36) 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.

(37) In FIG. 40, (A) shows the effect most similar to the effect of (19) used in the explanation above.

(38) 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 (in) may be the same or different without limiting the style.

(39) The embodiments of the present invention are as follows.

(40) 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

(41) FIG. 1A is a diagram illustrating an expanded sheet.

(42) FIG. 1B is a diagram illustrating a half folded sheet along the folded line (1′).

(43) FIG. 2 is a diagram of an example of the conventional tissue-paper storage box seen from obliquely upward.

(44) FIG. 3 is a diagram of an example of the tissue-paper removing opening.

(45) FIG. 4 is a diagram of an example when pulling out the tissue paper from the opening.

(46) FIG. 5A is a diagram of the tissue-paper storage box seen from obliquely upward.

(47) FIG. 5B is a cross sectional diagram of the storage box cut by a straight line parallel to (b-b′).

(48) FIG. 6 is a diagram of an example of the conventional tissue-paper storage box seen from directly above.

(49) FIG. 7 is a diagram of an example of the conventional tissue-paper storage box seen from above.

(50) FIG. 8 is a diagram of an example of the conventional tissue-paper storage box seen from above.

(51) FIG. 9 is a diagram of an example of the conventional tissue-paper storage box seen from above.

(52) FIG. 10 is a diagram of an example of the sheet-removing opening.

(53) FIG. 11 is a diagram of an example of the sheet-removing opening.

(54) FIG. 12 is a diagram of an example of curved shape rim of the opening placed at the point symmetric position.

(55) FIG. 13 is a diagram of an example of the sheet-removing opening.

(56) FIG. 14 is a diagram of an example of the projected portion of the sheet-removing opening.

(57) FIG. 15 is a diagram of an example of the sheet-removing opening.

(58) FIG. 16 is a diagram of an example of a cover made of cloth to cover the sheet storage box.

(59) FIG. 17 is a diagram of an example of line symmetric rim of the sheet-removing opening.

(60) FIG. 18 is a diagram of an example of the sheet-removing opening of the present invention.

(61) FIG. 19 is a diagram of an example of the sheet-removing opening of the present invention.

(62) FIG. 20 is a diagram of an example of the sheet-removing opening of the present invention.

(63) FIG. 21 is a diagram of an example of the sheet-removing opening of the present invention.

(64) FIG. 22 is a diagram of an example of the sheet-removing opening of the present invention.

(65) FIG. 23A is a diagram illustrating the rim of the opening mentioned in claim 2.

(66) FIG. 23B is a diagram illustrating the rims of the opening mentioned in claim 4.

(67) FIG. 23C is a diagram illustrating the rims of the opening mentioned in claim 4.

(68) FIG. 24 is a diagram of an example of the operation of B of FIG. 23.

(69) FIG. 25 is a diagram of an example of the sheet-removing opening of the present invention.

(70) FIG. 26 is a diagram of an example of the sheet-removing opening of the present invention.

(71) FIG. 27 is a diagram of an example of the sheet-removing opening of the present invention.

(72) FIG. 28 is a diagram of an example of the sheet-removing opening of the present invention.

(73) FIG. 29 is a diagram of an example of the sheet-removing opening of the present invention.

(74) FIG. 30 is a diagram of an example of the sheet-removing opening of the present invention.

(75) FIG. 31 is a diagram of an example of the sheet-removing opening of the present invention.

(76) FIG. 32 is a diagram of an example of the sheet-removing opening of the present invention.

(77) FIG. 33 is a diagram of an example of the sheet-removing opening of the present invention.

(78) FIG. 34 is a diagram of an example of a top lid provided on the sheet-removing opening of the present invention.

(79) FIG. 35A is a diagram of a portion of a flattened storage box seen from the front side.

(80) FIG. 35B is the cross sectional diagram of FIG. 35A.

(81) FIG. 35C is a diagram wherein, right and left inner surfaces of FIG. 35B are moved closer and fold down.

(82) FIG. 36A is a diagram of the portion with a space between (17′) and (17″) changed to (32).

(83) FIG. 36B is a diagram of the portion with (25′) changed to (32).

(84) FIG. 36C is a diagram of the portion with (25′) present between (26) changed to (32).

(85) FIG. 37 is a diagram of an example of the sheet-removing opening with main projection having line symmetric position.

(86) FIG. 38 is a diagram of an example of the sheet-removing opening with main projection having line symmetric position.

(87) FIG. 39 is a diagram of an example of the sheet-removing opening with main projection having line symmetric position.

(88) FIG. 40A shows the depression formed by is combining the curve shape and straight line shape.

(89) FIG. 40B shows the depression formed by changing the end of the rims of the opening to the straight line shape.

(90) FIG. 40C shows the depression formed by the curved shape depression at both ends and the depression including the projection at the center.

(91) FIG. 41 is a diagram of an example of the sheet-removing opening of the present invention.

REFERENCE SIGNS LIST

(92) 1: Sheet, 1′: Folded line of a sheet 2: Surface with an opening 2′: Top lid of the opening 3: Tissue-paper removing opening 3′a and 3′b: Rims of the opening 4: Fixing sheet pasted near the opening 5: Slit provided in the fixing sheet pasted near the opening 6, 6′, 6″: Projection for fixing the tissue paper 7: Nonlinear symmetric and point symmetric sheet-removing opening 7a: Long side of the opening 7b: Short side of the opening, 7L and 7R: Rims of the opening 8: Projection 9: Rims of the opening 10: Depression 11: Rims of the opening 12, 12′, 12″: Apex of the projection 13, 13′: Projection forming the opening 14: Cover main body 14′: Sheet-removing opening 15: Surface of the sheet-removing opening 15′: Surface of the sheet-removing opening of the present invention 16: Sheet-removing opening 16′: Sheet-removing opening of the present invention 17: Rims of the opening 17′: Rim of the opening of the present invention with long height 17″: Rim of the opening of the present invention with short height 18: Depression 18′; Depression of the present invention 19: Depression 19′: Depression of the present invention 20: Open space within the circle of 3 mm at the center of the opening 21: Open space within the circle of 2 mm at both ends of the opening 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 23: Step of rim of the opening of the present invention with long height and depression of the present invention 24: Step of rim of the opening of the present invention with short height and depression of the present invention 25: Folded line shape or folded convex shape curved depression 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 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 27: Top lid that can be detached by using perforated line 28: Thin portion of the top lid 29: Circular top lid portion with perforated line 30: Front surface of the storage box 30′: Inner surface of the box 31: Concave shape groove 31′: Convex shape line 32: Smooth concave shape depression A-A′: Breadth of the storage box B-B′: Length of the storage box C-C′: Height of the storage box d: Portion near the center of the opening, intersection of a-a′ and b-b′ d′: Circle near the center of the tissue-paper removing opening a-a′: Line parallel to the folding line of the sheet passing through the center of the opening b-b′: Straight line passing through the center of the opening perpendicular to a-a′ x: Hand e and e′: Portion of the tissue paper to which force is likely to be applied s: Line parallel to b-b′ and passing through the apex of the projection of the opening t: Intersecting line perpendicular to line parallel to b-b′ and passing through the apex of the projection of the opening 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