WO2022131294A1

WO2022131294A1 - Folding cup

Info

Publication number: WO2022131294A1
Application number: PCT/JP2021/046285
Authority: WO
Inventors: 圭佑西田
Original assignee: 圭佑西田
Priority date: 2020-12-15
Filing date: 2021-12-15
Publication date: 2022-06-23
Also published as: JP2024045785A

Abstract

This folding cup (A) comprises: a body part having at least three tube walls (L1, L2, L3); a first fold formed from the center of the lower end of each of the tube walls (L1, L2, L3) to a first position lower than the upper end of the respective tube wall; two second folds formed from the upper end of the first fold toward second positions higher than the first position on the two side ends of each of the tube walls (L1, L2, L3); two seal parts (a'1, a'2, b'1, b'1, c'1, c'2) bounded by the first fold, the two second folds, and the side end and lower end of each of the tube walls (L1, L2, L3); a plurality of leg parts (a, b, c) formed by the seal parts (a'1, a'2, b'1, b'2, c'1, c'2) and other seal parts (a'1, a'2, b'1, b'2, c'1, c'2) that are formed on adjacent other tube walls (L1, L2, L3) being joined together and bonded; and a first folding location (4) formed extending from the center of the upper end of each of the tube walls (L1, L2, L3) to the center of the lower end thereof.

Description

Folding cup

The present invention relates to a folding cup.

Conventionally, paper or plastic resin cups are used for disposable cups. Normally, the mouthpiece of the cup is circular, and the overall shape is an inverted cone or a cylinder. When storing and carrying multiple disposable cups, the shape of the stacked cups does not change by covering or putting another folding cup inside or outside the cup, so it is stored as it is. And when carrying it, a space equivalent to the volume of one cup or more is required. Therefore, a folding cup has been developed (see, for example, Patent Documents 1-3).

Jikkai Sho 63-86011 Japanese Unexamined Patent Publication No. 2005-22753 Japanese Unexamined Patent Publication No. 2005-29249

As a folding cup, there is a silicon bellows type telescopic folding cup. However, silicon needs to have a certain thickness, and even when folded, it does not become completely flat.

The present invention has been made to solve the above problems, and provides a folding cup that becomes a flat plate when stored.

The folding cup according to the present invention is made in view of the above circumstances, and has at least three cylinder walls, and the cylinder wall has a body portion forming an open space on the upper surface for storing liquid, and a cylinder wall. A first crease provided from the center of the lower end of the cylinder wall to a first position lower than the upper end of the cylinder wall, and a first position on both ends of the cylinder wall from the upper end of the first fold. Surrounded by two second creases, a first crease, two second creases, and the side and bottom edges of the cylinder wall formed towards a higher second position, two on the cylinder wall, respectively. One of the formed seals, one of the seals formed on the cylinder wall, and one of the other seals formed on the other adjacent cylinder walls form the angle between the cylinder wall and the other cylinder wall. It is provided with a plurality of legs formed by sandwiching and adhering to each other, and a folding portion formed on at least one cylinder wall from the center of the upper end to the center of the lower end of the cylinder wall.

The folded state is a flat and simple rectangular plate, so it can be stored and carried without taking up space.

It is a perspective view which shows the folding cup which concerns on Embodiment 1. FIG. It is a front view of the folding cup which concerns on Embodiment 1. FIG. It is a bottom view of the folding cup which concerns on Embodiment 1. FIG. It is a perspective view which saw through the inside before the formation of the folding cup which concerns on Embodiment 1. FIG. FIG. 5 is a perspective view of the inside of the folding cup according to the first embodiment formed from a sheet. It is an enlarged view of the trapezoid which concerns on Embodiment 1. FIG. It is a perspective view which shows the state at the time of unfolding from the state at the time of folding of the folding cup which concerns on Embodiment 1. FIG. It is a development view of the sheet which concerns on Embodiment 1. FIG. It is a perspective view of the core of the folding cup before the formation of the folding cup which concerns on Embodiment 1. FIG. It is a perspective view of the core of the regular triangular cylinder of a folding cup before the formation of the folding cup which concerns on Embodiment 1. FIG. It is a developed view of the sheet which concerns on Embodiment 2. FIG. It is a top view of the folding cup which concerns on Embodiment 2. FIG. FIG. 3 is a perspective view showing the inside of the folding cup according to the second embodiment. It is a perspective view which saw through the inside which formed the regular triangular cylinder of the folding cup which concerns on Embodiment 2 from a sheet. FIG. 5 is a perspective view showing the inside before forming the folding cup according to the second embodiment. It is a perspective view which shows the folding cup which concerns on Embodiment 3. FIG. It is a perspective view which shows the modification of the folding cup which concerns on Embodiment 3. FIG. It is a perspective view which shows the folding cup which concerns on Embodiment 4. FIG. It is a top view of the folding cup which concerns on Embodiment 4. FIG. It is a bottom view of the folding cup which concerns on Embodiment 4. FIG.

Hereinafter, embodiments of the folding cup according to the present invention will be described in detail with reference to the drawings.

Embodiment 1.
The folding cup according to the present invention is made of paper or plastic resin. The folding cup is provided with a body portion for storing liquid, and the shape of the body portion is formed in the shape of a vertically long regular triangular cylinder. As shown in A of FIG. 1, the folding cup is open because the upper end side is used as a drinking spout. On the upper end side thereof, a drinking mouth d, a drinking mouth e, and a drinking mouth f are provided at three vertices of a regular triangular cylinder when the body portion is viewed from the arrow X direction side.

As shown in FIG. 1, the shape of the body portion, which is the upper part of the cup A, is a regular triangular cylinder. The shape from the lower end of the cup A to the lower part of the leg of the cup A from the position of about 1/3 of the height of the cup A is an inverted pyramid.

As shown in FIGS. 2 and 3, the cup A supports the main body of the cup A with three legs arranged radially from the center of the bottom of the cup A, and is completely self-supporting without touching the hands. It can be placed on a desk or table. Further, these three legs also serve as a sealing portion for storing the liquid of the cup A.

As shown in FIGS. 4 and 5, the body portion of the cup A is a regular triangular cylinder composed of a rectangular cylinder wall L1, a cylinder wall L2, and a cylinder wall L3.

It is desirable that the cup A has the shape of an equilateral triangular cylinder whose cross section forms an equilateral triangle. For example, if the cross section of a folding cup is an isosceles triangle with an acute angle, the area of the side surface of the triangular cylinder to which the base sandwiched between the base angles belongs is reduced, so that when folded, it becomes thinner and flatter. However, since the angles of the three drinking spouts d, e, and f cannot be unified, the three drinking spouts d, e, and f cannot be used evenly.

The shape of the cup A before formation is a regular triangular cylinder, and as shown in FIG. 2, the drinking spouts d, e, and f (cross sections) are formed in a regular triangular shape, and the shape of the body portion for storing the liquid is It is formed in the shape of a regular triangular cylinder. As shown in FIGS. 4 and 5, the folding position 1 between the cylinder wall L1 and the cylinder wall L3, the folding position 2 between the cylinder wall L1 and the cylinder wall L2, and the folding position between the cylinder wall L2 and the cylinder wall L3. 3 forms the side of the cup A. The cylinder wall L3 is provided with a first folding portion 4 of the cup A main body.

As shown in FIGS. 4 and 5, Y-shaped creases are formed at the lower ends of the cylinder wall L1, the cylinder wall L2, and the cylinder wall L3, respectively. The creases are the first crease formed from the center of the lower end of the cylinder wall L1, the cylinder wall L2, and the cylinder wall L3 to the first position lower than the upper end, and both sides of the cylinder wall from the upper end of the first fold. It has two second creases formed towards a second position higher than the first position on the edge.

The height from the first position, which is the upper end of the first fold, to the lower end of the cylinder wall is about 1/10 of the height of the cup A.

The second crease intersects the side surfaces of the cylinder wall L1, the cylinder wall L2, and the cylinder wall L3, respectively. The second position, which is the intersection of the second crease and the side edge, is higher than the first position, and the height from the second position to the lower end of the cylinder wall is about 1 / of the height of the cup A. It is about 3.

The cylinder wall L1, the cylinder wall L2, and the cylinder wall L3 have two seal portions a'2, a seal portion b'1, and a seal portion surrounded by a Y-shaped crease, a side end, and a bottom side, respectively. b'2 and the seal portion c'1, and the seal portion a'1 and the seal portion c'2 are formed. The seal portion a'2 of the cylinder wall L1 is adjacent to the seal portion a'1 of the cylinder wall L3, and the seal portion b'1 of the cylinder wall L1 is adjacent to the seal portion b'2 of the cylinder wall L2. The seal portion c'1 of L2 is formed adjacent to the seal portion c'2 of the cylinder wall L3.

The seal portion a'2 of the cylinder wall L1 and the seal portion a'1 of the cylinder wall L3 are pressed against each other with the folding position 1 interposed therebetween and are crimped. Hereinafter, similarly, the seal portion b'1 of the cylinder wall L1 and the seal portion b'2 of the cylinder wall L2 are pressed against each other with the folding position 2 interposed therebetween and are crimped. Further, the seal portion c'1 of the cylinder wall L2 and the seal portion c'2 of the cylinder wall L3 are pressed against each other with the folding position 3 interposed therebetween and are crimped.

The three crimps of the seal part of the cup A are performed at the same time as the formation of the bottom part of the cup A, and at the same time, the bottom part of the cup A is surely crimped to prevent liquid leakage so that the seal parts are in perfect contact with each other. In order to form the body, all of them are formed simultaneously and simultaneously toward the inner center (center of gravity) P, which is the center of the equilateral triangle in the cross section of the bottom of the body.

When the crimped portion of the cup A is viewed from the side in the horizontal direction, as shown in FIG. 6, the shape of each of the three crimped portions is a trapezoidal shape. The portion corresponding to the height H of the trapezoid is in contact with the desk, the table, or the like to form the legs of the cup A. The portion of the trapezoidal leg R2 forming an angle of 90 degrees with respect to the upper base Ub and the lower base Lb of the trapezoid is the bottom of the leg of the cup A. Then, the portion of the trapezoidal leg R1 on the opposite side becomes the bottom portion of the body portion of the cup A for storing the liquid. A symmetrical trapezoid is arranged when the regular triangular cylinder is viewed from either side of the horizontal direction. As a result, the portion of the cup A for storing the liquid is completed.

As shown in FIG. 3, the arrangement of a, b, and c, which are the legs of the cup A, is arranged radially from the inner center P, which is the center of the bottom of the cup A, and becomes a Y-shape or an inverted Y-shape. ing.

As shown in FIG. 1, the first folding portion 4 of the cup A is one on any side surface of the regular triangular cylinder, and the cup is from the center of the bottom side of the side surface of the regular triangular cylinder, which is the side surface of the regular triangular cylinder. Make a crease that vertically cuts the side surface of A, and use that as the fold point. The first folding portion 4 has a straight line shape parallel to the axial direction of the cylinder of the cup A. The first folding portion 4 may be provided on any of the cylinder walls of the cup A. If the bottom surface of the triangular cylinder is an isosceles triangle, make a crease that vertically cuts the side surface of the cup A from the center of the bottom side of the side surface of the cup A to which the bottom side portion of the isosceles triangle belongs, and fold it. It is a place. FIG. 7 shows a mode of unfolding from the folded state to the time of use.

The seal position b'of the cup A to which the seal portion b'1 and the seal portion b'1 are crimped is thin and is the thickness of two sheets of the material used for the cup A. Similar to the seal position b', the seal position a'1 to which the seal portion a'1 and the seal portion a'1 of the cup A are crimped is the thickness of two sheets of the material used for the cup A. Further, the same applies to the seal position c'1 to which the seal portion c'1 and the seal portion c'1 of the cup A belonging to the folding position 3 are crimped.

The method and procedure for forming the cup A according to the present invention from a sheet will be described.

As shown in FIG. 8, a rectangular flat sheet is cut into one sheet having a specified size for forming a cup A, and one of the longitudinal ends of the sheet has a narrow width along the short side. A glue margin portion S11 or S12 is provided.

The long side of the remaining rectangle is evenly divided into three parts in the rectangular part excluding the glue margin part S11 or S12 of the same sheet, and is perpendicular to the long side, and the three cylinder walls L1 and the cylinder wall L2. , The folding position 1 and the folding position 3, which are the folds for forming the tubular wall L3, are provided. Further, the folding position 2 is provided at the boundary portion between the glue margin portion S11 or S12 and the cylinder wall L2 adjacent thereto. In addition, the first folding portion 4 is provided at a position where the center of the rectangle is divided into two equal parts, excluding the glue margin portion S11 or S12.

In the next step, the glue margin portion S11 or S12 of the sheet and the endmost cylinder wall L1 which is the other end on the opposite side are bonded and crimped so as to be wound around the core rod of the regular triangular cylinder, and crimping is performed. As shown in, the whole is formed so as to have a tubular shape of a regular triangular cylinder. That is, the glue margin portion S11 shown in FIG. 5 is crimped from the sheet shown in FIG. 8 to form an equilateral triangular cylinder having an equilateral cross section.

The sheet is bent at the folding position 1, the folding position 2, and the folding position 3 shown in FIG. 8, formed so as to be wound around the core rod of the regular triangular cylinder as shown in FIG. 5, and crimped by the glue margin portion S11 or S12. To form a regular triangular cylinder. FIG. 5 shows the glue margin portion S11 arranged on the outside of the cup A. The glue margin portion S12 may be arranged inside the cup A.

The three crimps of the seal part of the cup A are performed at the same time as the formation of the bottom part of the cup A, and at the same time, the bottom part of the cup A is surely crimped to prevent liquid leakage so that the seal parts are in perfect contact with each other. In order to form the body portion, all of them are formed simultaneously and simultaneously toward the direction of the inner center P, which is the central direction of the equilateral triangle in the cross section of the bottom portion of the body portion.

When the crimped portion of the cup A is viewed from the side in the horizontal direction, as shown in FIG. 6, the shape of each of the three crimped portions is trapezoidal. Three symmetrical trapezoids are formed on each side of the regular triangular cylinder after one crimping is completed. As shown in FIG. 1, on each side surface of the regular triangular cylinder, there are two symmetrical trapezoids on each side surface, centered on the lower center of the side surface, and six locations on the entire regular triangular cylinder. The crimping points of the above are configured to form the cup A.

As shown in FIG. 6, the portion of the trapezoidal leg R2 is a portion perpendicularly intersecting the upper base Ub and the lower base Lb, and corresponds to the height H of the trapezoid. This part is located at the bottom of the cup A and functions to make the cup A self-supporting by contacting the ground plane with a desk, a table, etc., and the part of the trapezoidal leg R1 on the other side collects liquid. Consists of the seal part.

As shown in FIG. 1, since the cross section of the cup A is an equilateral triangle, there is only one folding portion, one on any side of the regular triangular cylinder, and from the lower center of the side surface of the cup A. A first folding portion 4 that vertically traverses the side surface of the cup A is attached. If the bottom of the triangular cylinder is an isosceles triangle, one side of the triangular cylinder to which the bottom side of the isosceles triangle belongs, and the side of the cup A vertically traversed from the lower center on the side of the triangular cylinder. Make a crease and use it as the first folding point.

As shown in FIG. 7, with the first folding portion 4 as the main axis, the folding positions 1 and the folding positions 3 at both ends of the cylinder wall L3 having the first folding portion 4 are overlapped with each other, and the remaining cylinder wall If the two points L1 and the cylinder wall L2 are folded in a mountain at the folding position 2 belonging to the bent tip portion and the first folding point 4 is made in a valley fold, the cup A is in a flat folded state. In the folded state, the entire cup A has a rectangular plate shape. Here, the mountain fold is a folding method in which the folds come out on the outer surface side of the body portion of the cup A. The valley fold is a folding method in which the crease is hidden on the inner surface side of the body portion of the cup A.

Subsequently, a method and a procedure for forming the cup A according to the present invention from the core of the cup A will be described. Hereinafter, the forming method by this method is referred to as a core basic type of cup A.

Using paper or plastic resin as a raw material, the core of cup A is glued into a roll like the core of toilet paper and kitchen paper.

Specifically, as shown in FIG. 9, the bonded portion of the raw material is spirally bonded to continuously form a cylindrical core formed by gluing in a roll shape. Then, at the same time as cutting to the specified size of the cup A, the core rod of the regular triangular cylinder is inserted into the core of the cup A, and the regular triangular cylinder is press-molded.

Alternatively, as shown in FIG. 10, the adhesive portion of the raw material is directly spirally wound around the core rod of the regular triangular cylinder from the beginning, and the core portion of the cup A is bonded to form the core portion of the regular triangular cylinder. Is continuously formed. Then, the cup A is cut to a specified size and formed into a cylindrical shape of a regular triangular cylinder as a whole.

The subsequent steps are the same as the method for forming the cup A according to the present invention from the sheet.

The cup A has a length t1 between the drinking mouth d and the drinking mouth e, a length t2 between the drinking mouth e and the drinking mouth f, and a length t3 between the drinking mouth f and the drinking mouth d shown in FIG. By lengthening the gap between the mouths, the capacity of the cup A can be easily increased. As t1, t2, and t3 become longer, the stability of the cup A in the unfolded state when it is used and when it is placed on a desk, table, or the like is inevitably increased. The method of forming the cup A wide type main body having a wide space between the mouths is the same as the method of forming from a sheet.

As explained above, when using the cup A, even the legs that can be placed stably are formed at the bottom of the cup A at the same time. That is, the crimping seal portion forming the bottom portion of the cup A also serves as the leg portion of the cup A at the same time.

As shown in FIG. 3, the bottom surface of the equilateral triangle, the center of the equilateral triangle, and the three legs that radiate from the inner center or the center of gravity P make the unfolded cup A stand on its own in a stable manner.

The reason why the crimping part is trapezoidal is that if it is a triangle, the bottom of the cup A becomes an equilateral triangle, and the adhesion of the part P, which is the central part of the cup A, becomes weak and the adhesion becomes insufficient. This is because it causes the liquid inside to leak.

From the lower end of the cup A to the lower part of the leg of the cup A from the position of about 1/3 of the height of the cup A, the inverted pyramidal shape is the part where the liquid is stored, the bottom of the cup A. In order to form the center of the bottom of the cup A, which forms an equilateral triangle, and crimping from three places at the same time toward the direction of P so as to press each other at the same time, 3 is centered on the outer shell of the cup A. This is because the folding position is attracted to each part and moves.

Cup A is an equilateral triangle regardless of which of the three spouts is poured, so the liquid is concentrated in one place, so it is difficult to spill and it is easy for small children to drink.

When the first folding point 4 is valley-folded in the unfolded state when the cup A is used, the cup A is folded into a rectangular flat state. In the folded state, the cup A is in a smooth and horizontal state without unevenness. For this reason, the cup A has a flat plate shape so that it can be stored compactly by suppressing the storage width at the time of folding as much as possible at the time of storage.

As a result, individual packaging is possible easily, it can be carried cleanly at all times, and it can be completely sterilized, so it can be stored for a long time. Moreover, since it has a perfect plate shape, it can be easily stored anywhere.

The trapezoidal part formed at the bottom of the cup A when viewed from the side in the horizontal direction has a relatively large area, so it also functions as a handle part. Therefore, even when you put a hot drink in it, if you hold this part, it is difficult for the heat to be transferred to your hand, and you can keep it for a relatively long time.

By lengthening each side of the equilateral triangle, which is the shape of the drinking spout, the capacity of the equilateral triangle cylinder of the cup A also increases, and the size and capacity of the cup A can be freely changed accordingly. Also, at the same time as the capacity increases, the stability of the bottom of the cup A also increases.

Embodiment 2.
In the cup A according to the first embodiment of the present invention, each spout has an acute angle. Not limited to this, parallel creases with a small width attached to each side of the regular triangular cylinder constituting between the mouths of the cup formed from the sheet may be provided so that the mouths are square and easy to drink. ..

As shown in FIG. 11, a flat sheet forming a rectangle is cut into one sheet having a predetermined size for forming a cup B, and one of the longitudinal ends of the rectangle of the sheet is along the short side. A narrow width glue margin portion S13 or S14 is provided.

As shown in FIG. 11, the long side of the remaining rectangle is divided into three parts in the rectangular part excluding the glue margin part S13 or S14 of the same sheet, and the long side is perpendicular to the long side and three places (strictly speaking). 6 places) The two folds, which are the folds for forming the cylinder wall L1, the cylinder wall L2, and the cylinder wall L3, at the fold position 1-2 and the fold position 3-1 and the creases with a small width parallel to them. A certain folding position 1-1 and a folding position 3-2 are provided at one place each. Further, at the boundary portion between the glue margin portion S13 or S14 and the cylinder wall L2 adjacent thereto, one place of the fold position 2-2 and the fold position 2-1 which is a narrow crease parallel to the fold position 2-2 is added. Make creases respectively.

That is, the sheet is provided with six folds of fold position 1-1, fold position 1-2, fold position 2-1 and fold position 2-2, fold position 3-1 and fold position 3-2. The folding positions when folding the cup B are set to the folding position 1-2, the folding position 3-1 and the folding position 2-2, and the other folding positions 1-1, the folding position 3-2 and the folding position 2-1. Is a crease that is added to make the mouthpiece square.

Further, a first folding portion 4, which is a fold for folding, is provided at a position where the center of the rectangle is divided into two equal parts, excluding the glue margin portion S13 or S14 of the same sheet.

In the next step, the glue margin portion S13 or S14 of the sheet and the endmost cylinder wall L1 which is the other end on the opposite side are bonded together so as to be wound around a core rod of an equilateral triangular cylinder (strictly speaking, a hexagonal cylinder). As shown in FIG. 14, the openings on the upper and lower bottom surfaces in the vertical direction form an equilateral triangle (strictly speaking, a hexagon), and the cylinder wall L1 and the cylinder wall at three locations (strictly six locations). It is composed of L2 and a cylinder wall L3, and is formed so as to have a tubular shape of an equilateral triangular cylinder (strictly speaking, a hexagonal cylinder).

The subsequent steps are the same as the method of forming the cup B according to the present invention from the sheet. However, as shown in FIG. 11, the crimping for forming the bottom of the cup B comes with the folding position (11) and the folding position 3-1 indicating the place where the folding position 1-2 comes when folded. The folding position (12) indicating the location and the folding position (13) indicating the location where the folding position 2-2 comes are used as a reference. That is, the crimping for forming the bottom of the cup B is performed at the folding position 1-1 and the folding position 1-2, the folding position 2-1 and the folding position 2-2, and the folding position 3-1 and the folding position 3-2. Not done at each intermediate position.

As shown in FIG. 12, the drinking spout of the cup B formed from the sheet has three drinking spouts g, h, and i, and the folding positions 1-1 and 1-2 along the drinking spout g. The bottom seal position is a', the folding position 2-1 and the folding position 2-2 along the drinking spout h, the bottom sealing position is b', and the folding position 3-1 and the folding position along the drinking spout i. 3-2, the seal position at the bottom is c'.

As shown in FIG. 13, with the first folding point 4 as the main axis, the folding position 3-1 and the folding position 1-2 are overlapped with each other, and a mountain fold is made at the folding position 2-2, and the first folding point is formed. If you make a valley fold along the crease of 4, you will have a flat fold. That is, the cup B formed from the sheet is folded at three positions: folding position 1-2, folding position 3-1 and folding position 2-2.

Next, a method and a procedure for forming a cup B having a square mouthpiece from the core of the cup B will be described.

The core part of the cup B is glued into a roll like the core part of the toilet paper and kitchen paper. While spirally adhering the adhesive portion related to the formation of the core portion of the cup B, a cylindrical core formed by gluing in a roll shape is continuously formed and cut to the specified size of the cup B. At the same time, a regular triangle for making six folds: fold position 1-1, fold position 1-2, fold position 2-1, fold position 2-2, fold position 3-1 and fold position 3-2. A core rod in the shape of a cylinder (strictly speaking, a hexagonal cylinder) is inserted, press molding is performed on a regular triangular cylinder (strictly speaking, a hexagonal cylinder), and the portion forming the bottom of the cup B is crimped.

Alternatively, while directly spirally winding around the core rod of a regular triangular cylinder (strictly speaking, a hexagonal cylinder) that constitutes six folds from the beginning, adhesion related to the formation of the core portion of cup B is performed, and FIG. 15 shows. As shown, the core of a regular triangular cylinder (strictly speaking, a hexagonal cylinder) is continuously formed, cut to the specified size of cup B, and the whole is a cylinder of a regular triangular cylinder (strictly speaking, a hexagonal cylinder). It is formed so as to have a shape, and the portion forming the bottom of the cup B is crimped.

The subsequent steps are the same as the method for forming the cup B formed from the sheet.

Embodiment 3.
In the cups according to the first and second embodiments of the present invention, the legs serve as handles and no handle-like handle is provided. Not limited to this, a handle-shaped handle may be provided.

In the cup C according to the third embodiment of the present invention, as shown in FIG. 16, a handle N is provided on the body portion of the cup C. The handle N is a rectangular sheet folded in two. The handle N is folded to bisect the sheet to form two rectangular portions N1 and N2.

The handle N is arranged so that the crease 21 is along the first folding portion 4 of the cup C. Then, the rectangular portion N2 is crimped to the cylinder wall of the cup C, and the rectangular portion is not crimped and is used as a handle of the handle.

As shown in FIG. 17, the cup C may be provided with a handle M punched out in a horizontal U shape in order to make it easier to insert and hold a finger. The handle M is a rectangular sheet that is folded in two and has a notch. The handle M is formed with a handle portion M1 on which a finger is hung, a rectangular portion M2 having no notch, and a portion M3 separated by the notch.

The handle M is provided with a crease 22 that divides the long side of the sheet into two equal parts and is perpendicular to the long side of the sheet. The notch of the handle M is from the position of about 1/6 of the short side of the sheet from the lower end of the crease to the depth of about 1/4 of the long side of the sheet in parallel with the long side of the sheet. It is cut from there to a height of about 5/6 of the short side of the sheet, parallel to the short side of the sheet, and further cut from there to the crease parallel to the long side of the sheet.

The handle portion M1 is continuous with the rectangular portion M2 and is formed in a horizontal U-shape by a notch. The surface area of the handle portion M1 is about 1/3 to 1/4 of the surface area of the handle M. The separated portion M3 is continuous with the rectangular portion M2 and is formed in a rectangular shape surrounded by creases and cuts.

The handle M is arranged so that the crease is along the first folding portion 4 of the cup C. Then, the rectangular portion M2 and the separated portion M3 are crimped to the cylinder wall of the cup C, and the handle portion M1 is not crimped and is used as a handle of the handle.

As a preventive measure against infectious diseases such as viruses and bacteria, it is possible to pull the tube wall of the folding surface from the outside of the cup C without putting a finger inside the cup C so that the cup C can be easily deployed. It is easy to hold in your hand even at times.

The handle N and the handle M not only are used as an aid when opening the cup C in the expanding direction at the time of use, but also function as a handle used when holding the cup C in the hand. Also, to prevent the cylinder wall of the cup C from being inadvertently closed by the force that tries to return the cylinder wall of the cup C to the original folded state, and the cup C is restored and repositioned in the folding direction. , Also plays the role of holding the cylinder wall.

Embodiment 4.
In the cup according to the first to third embodiments of the present invention, the shape of the body portion of the cup is a triangular cylinder. Not limited to this, the shape of the body portion of the cup may be a polygonal cylinder, for example, a square cylinder.

In the cup D, the shape of the body portion for storing the liquid is a vertically long regular square cylinder, and the spout j, the spout k, and the spout j are at the four vertices of the upper surface of the regular square cylinder of the cup D shown in FIGS. It has a drinking spout l and a drinking spout m.

As shown in FIG. 18, the body portion of the cup D has a cylindrical shape of a regular square cylinder composed of a rectangular cylinder wall L11, a cylinder wall L12, a cylinder wall L13, and a cylinder wall L14.

As shown in FIG. 20, the cup D should support the main body of the cup D with four legs spread out in an X shape at the bottom of the cup D, and should be completely independent without touching and placed on a desk, a table, or the like. Is possible. Further, the four-legged portion also serves as a sealing portion for storing the liquid of the cup D.

The shape of the cup D before formation is a regular square cylinder, and as shown in FIG. 19, the drinking spout (cross section) is formed in a regular square shape, and the shape of the body portion for storing the liquid is in the shape of a regular square cylinder. It is formed. Folding position 1'between cylinder wall L11 and cylinder wall L14, folding position 2'between cylinder wall L11 and cylinder wall L12, folding position 3'between cylinder wall L12 and cylinder wall L13, wall 3L13 and cylinder wall The folding position 4'between L14 forms the side of the cup D. The cylinder wall L11 is provided with a second folding portion 5'of the cup D, and the cylinder wall L13 is provided with a third folding portion 6'of the cup D.

Y-shaped creases are formed at the lower portions of the cylinder wall L11, the cylinder wall L12, the cylinder wall L13, and the cylinder wall L14, respectively. Specifically, the first crease formed from the center of the lower end of the cylinder wall L11, the cylinder wall L12, the cylinder wall L13, and the cylinder wall L14 to the first position lower than the upper end, and the upper end of the first crease, respectively. It has two second creases formed from to a second position higher than the first position on both ends of the cylinder wall.

The height from the first position, which is the upper end of the first crease, to the lower end of the cylinder wall is about 1/10 of the height of the cup D.

The second crease intersects the side ends of the cylinder wall L11, the cylinder wall L12, the cylinder wall L13, and the cylinder wall L14, respectively. The second position, which is the intersection of the second crease and the side edge, is higher than the first position, and the height from the second position to the lower end of the cylinder wall is about 1 / of the height of the cup D. It is about 3.

The cylinder wall L11, the cylinder wall L12, the cylinder wall L13, and the cylinder wall L14 have two seal portions a'2 and a seal portion b'enclosed with a Y-shaped crease, a side end, and a bottom side, respectively. 1. The seal portion b'2 and the seal portion c'1, the seal portion c'2 and the seal portion d'1, and the seal portion d'2 and the seal portion a'1 are formed. The seal portion a'2 of the cylinder wall L1 is adjacent to the seal portion a'1 of the cylinder wall L14, and the seal portion b'1 of the cylinder wall L11 is adjacent to the seal portion b'2 of the cylinder wall L12. The seal portion c'1 of L2 is adjacent to the seal portion c'2 of the cylinder wall L3, and the seal portion d'1 of the cylinder wall L3 is formed adjacent to the seal portion d'2 of the cylinder wall L14. ..

The seal portion a'2 of the cylinder wall L11 and the seal portion a'1 of the cylinder wall L14 are pressed against each other across the folding position 1'and are crimped. Hereinafter, similarly, the seal portion b'1 of the cylinder wall L1 and the seal portion b'2 of the cylinder wall L2 are pressed against each other so as to sandwich the folding position 2'and are crimped. Further, the seal portion c'1 of the cylinder wall L2 and the seal portion c'2 of the cylinder wall L13 are pressed against each other so as to sandwich the folding position 3'and are crimped. In addition, the seal portion d'1 of the cylinder wall L13 and the seal portion d'2 of the cylinder wall L14 are pressed against each other so as to sandwich the folding position 4'and are crimped.

As shown in FIGS. 18 and 19, the drinking mouth of the cup D of the regular square tube has four drinking mouths j, a drinking mouth k, a drinking mouth l, and a drinking mouth m. Folding position 1'along the drinking spout j, the sealing part at the bottom is a', folding position 2'along the drinking spout k, the sealing part at the bottom is b', folding position 3'along the drinking spout l , The sealed portion at the bottom is c', the folding position 4'along the drinking spout m, and the sealed portion at the bottom is d'.

The four crimps of the seal part of the cup D are performed at the same time as the formation of the bottom part of the cup D, and at the same time, the bottom part of the cup D is surely crimped to prevent liquid leakage so that the seal parts are in perfect contact with each other. In order to form the body, all of them are formed simultaneously and simultaneously toward the inner center (center of gravity) P', which is the center of the square in the cross section of the bottom of the body.

FIG. 20 is a bottom view showing the bottom of the cup D, and shows the arrangement of the bottoms of a, b, c, and d, which are the legs of the cup D.

As shown in FIG. 20, the arrangement of a, b, c, and d, which are the legs of the cup D, is arranged radially from the inner center P', which is the center of the bottom of the cup D, and becomes an X-shape. There is.

The cup D according to the fourth embodiment of the present invention is not provided with a handle-shaped handle. Not limited to this, a handle N or a handle M may be provided.

The handle N or the handle M is arranged so that the crease is along the second folding point 5'or the third folding point 6'of the cup D. Subsequent steps are the same as the method for forming the cup D according to the third embodiment.

In the cup A according to the first embodiment of the present invention, a first folding portion is provided on one cylinder wall. Not limited to this, the cup D may be folded, and the first folding portion may be provided on a plurality of cylinder walls.

The cups A, B, C, and D according to the first to fourth embodiments of the present invention are provided with three or four tubular walls. Not limited to this, the cup may be provided with five or more cylinder walls. The opening of the body of this cup is polygonal.

In the cups A, B, C, and D according to the first to fourth embodiments of the present invention, the sealing portion of the cylinder wall is crimped. Not limited to this, it suffices if the liquid accumulated in the body portion is adhered so as not to leak.

Since the folding cup according to the present invention can be stored in a flat plate shape, it can be stored and carried without taking up space. In addition, since it has a flat plate shape, it can be individually wrapped and can be stored and carried cleanly in a completely sterilized state, so that it can be widely provided from portable to medical use.

The present invention allows various embodiments and modifications without departing from the broad spirit and scope of the present invention. Further, the above-described embodiments are for explaining the present invention, and do not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiment but by the claims. And various modifications made within the scope of the claims and within the equivalent meaning of the invention are considered to be within the scope of the present invention.

This application is based on Japanese Patent Application No. 2020-207999 filed on December 15, 2020. The specification, claims, and the entire drawing of Japanese Patent Application No. 2020-20799 shall be incorporated into this specification as a reference.

A, B, C, D Cups 1, 1-1, 1-2, 2, 2-1, 2-2, 3-1, 3-2, 1'2', 3', 4'fold Position 4 1st folding point 5'2nd folding point 6'3rd folding point a, b, c, d Legs a'1, a'2, b'1, b'2, c'1, c'2, d'1, d'2 Seal part d, e, f, g, h, i, j, k, l, m Drinking mouth t1, t2, t3, r1, r2, r3 Length L1, L2 , L3, L11, L12, L13, L14 Cylinder wall S11, S12, S13, S14 Glue allowance part N, M Handle X Vertical direction on the upper (drinking mouth) side of the folding cup Y Vertical on the lower (bottom) side of the folding cup Direction P, P'Inner center or center of gravity R1, R2 Trapezoidal legs Ub Trapezoidal upper bottom Lb Trapezoidal lower bottom H Trapezoidal height

Claims

A fuselage portion having at least three cylinder walls, the cylinder wall forming a space having an open upper surface for storing liquid, and a body portion.
A first crease provided on each of the cylinder walls and formed from the center of the lower end of the cylinder wall to a first position lower than the upper end of the cylinder wall.
Two second creases formed from the upper end of the first crease toward a second position higher than the first position on both side ends of the cylinder wall.
The first crease, the two second creases, and two sealing portions surrounded by the side end and the lower end of the cylinder wall and formed on the cylinder wall, respectively.
One of the sealing portions formed on the cylinder wall and one of the other sealing portions formed on the adjacent other cylinder wall sandwich the angle formed by the cylinder wall and the other cylinder wall. With multiple legs formed by contacting and adhering to each other,
A folding portion formed from the center of the upper end to the center of the lower end of the cylinder wall at least one of the cylinder walls.
Folding cup with.
The first crease and the two second creases are formed in a Y shape.
Each of the plurality of legs has a trapezoidal shape with the first crease as the upper bottom, the second fold forms the bottom of the body portion, and the plurality of legs form the center of the bottom portion. Arranged in a radial pattern from
The folding cup according to claim 1, wherein the body portion has an inverted pyramid shape from a position of 1/3 of the height of the cup to the lower portions of the plurality of legs.
The shape of the opening of the body portion is a polygon having at least three upper ends of the cylinder wall as each side.
The folding cup according to claim 1 or 2, wherein the corner of the opening serving as a drinking spout is a square surface.
The height from the upper end of the first fold to the lower end of the cylinder wall is 1/10 of the height of the cylinder wall.
The folding cup according to any one of claims 1 to 3, wherein the height from the second position of the cylinder wall to the lower end of the cylinder wall is 1/3 of the height of the cylinder wall.
The folding cup according to any one of claims 1 to 4, wherein the leg serves as a handle.
The folding cup according to any one of claims 1 to 5, which is provided with the three cylinder walls and whose body shape is a square cylinder having an equilateral triangular cross section.
The folding cup according to claim 6, wherein the folding portion is folded into a valley fold, the corners forming both ends of the tubular wall on which the folding portion is formed are folded into mountain folds, and the folding portion can be folded into a rectangular flat plate shape. ..
Further equipped with a handle consisting of a seat folded in two to form two areas,
The handle abuts on the tubular wall on which the fold is formed.
The area on one side of the handle is glued to the tubular wall on which the folds are formed.
The folding cup according to any one of claims 1 to 7, wherein the area on the other side of the handle serves as a handle.
The folding cup according to claim 8, wherein the handle is U-shaped in a horizontal direction.
The folding cup according to any one of claims 6 to 9, wherein the cross section of the body portion is a regular triangle.
The folding cup according to any one of claims 6 to 9, wherein the cross section of the body portion is an isosceles triangle.
The folding cup according to claim 11, wherein the folding portion is formed on the tubular wall constituting the side sandwiched by the bottom corners of the isosceles triangle.
The folding cup according to any one of claims 1 to 5, which is provided with the four cylinder walls and the shape of the body portion is a regular square cylinder.
The folding points are formed on the pair of facing cylinder walls, respectively.
It is possible to fold each of the two folding points into a valley fold, and to make mountain folds at the corners forming both ends of the pair of cylinder walls in which the two folding points are formed, and to fold them into a rectangular flat plate shape. The folding cup according to claim 13.
Further equipped with a handle consisting of a seat folded in two to form two areas,
The handle abuts on one of the tubular walls on which the folds are formed.
The area on one side of the handle is adhered to the tubular wall on which the folds abutted are formed.
The folding cup according to claim 14, wherein the area on the other side of the handle serves as a handle.
The folding cup according to claim 15, wherein the handle is U-shaped in a horizontal direction.