JP2015039393A - Folding cup - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding cup capable of being folded for disposal after use.SOLUTION: A folding cup is folded as follows. In step S1, after finishing using a cup 10, side walls 11 are pushed against each other by a user, the side walls 11 provided between a first vertical mountain-folding part 14 and a second vertical mountain-folding part 15 of the cup 10, to fold the upper part of the cup 10. In step S2, the side walls 11 near a parallel valley-folding part 17 are pushed against each other to valley fold the parallel valley-folding part 17. In step S3, a bottom part 13, a first triangle surface 18 and a second triangle surface 19 become flush with each other, and are folded so as to be parallel with the side walls 11. Further, by pushing the bottom part 13 and the side walls 11 against each other, the three-dimensionally shaped cup 10 can be folded into a flat shape.

Description

  The present invention relates to a folding cup that is folded after use and discarded.

  Conventional disposable cups have been devised to reduce the volume by overlapping and discarding.

  Patent Document 1 (Japanese Patent Application Laid-Open No. 07-074402) discloses a lid for a trash bin that is intended to accommodate a large number of cups in a trash bin with a limited volume by stacking a certain number of thrown disposable cups. Is disclosed.

Japanese Patent Application Laid-Open No. 07-076422

  When discarding cups using the trash can lid described in Patent Document 1, a trash can dedicated to discarding cups that cannot be used for other purposes is required.

  The present invention aims to fold and discard the disposable cup. For this purpose, the cup 10 is formed in a shape that can be easily folded, and the cup 10 is positively provided with a portion that becomes a fold, so that the cup 10 can be easily folded. The position of the fold is the part of the side wall 11 that is observed as both ends when the cup 10 is erected from the side, and the first vertical position is symmetric with respect to the center line of the cup 10. A mountain folding part 14 and a second vertical mountain folding part 15 are formed.

  Furthermore, a parallel valley fold 17 parallel to the bottom 13 is formed on the side wall 11 of the cup 10. The distance from the bottom 13 of the parallel valley fold 17 is half the length of the outer method W of the bottom 13 of the cup 10. Both ends of the parallel valley fold portion 17 are connected to the vicinity of the lower ends of the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15.

  The cross-sectional shape of the fold is a method in which only the fold portion is formed thin by half-cutting or molding, a method of forming a ridge line of a ridge or a curved ridge, a step on the side wall 11 on the left and right of the fold line. There is a method of forming.

  In order to reduce the distortion generated between the side wall 11 and the bottom 13 when the first vertical mountain fold part 14 and the second vertical mountain fold part 15 are folded in a mountain fold so that the side walls 11 are joined together, the side wall 11 The 1st triangular surface 18 and the 2nd triangular surface 19 were shape | molded in the lower part of this. The first triangular surface 18 has a triangular shape in a side view with the vicinity of the intersection of the first vertical mountain fold portion 14 and the parallel valley fold portion 17 as a vertex and a part of the bottom portion 13 as a base. The second triangular surface 19 has a triangular shape in a side view with the vicinity of the intersection of the second vertical mountain fold 15 and the parallel valley fold 17 as a vertex and a part of the bottom 13 as a base.

  The folding cup according to the present invention is preferably made of resin by vacuum molding or injection molding using PE, PP, PS or the like as a raw material in view of ease of material recycling and price. The thickness at the time of forming the cup 10 with resin can be 0.2-1 mm.

  When the use of the cup 10 is finished, the side walls 11 between the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 are pressed together with fingers, and the upper portion of the cup 10 is folded (step S1). Next, the side wall 11 near the parallel valley fold part 17 is pressed together, and the parallel valley fold part 17 is made into a valley fold (step S2).

  Then, the bottom portion 13, the first triangular surface 18, and the second triangular surface 19 are flush with each other and bent so as to be parallel to the side wall 11. Further, by pressing the bottom portion 13 and the side wall 11 together, the cup 10 having a three-dimensional shape can be folded into a flat shape (step S3).

  Thereafter, the folded cup 10 is fixed using the fixing band 21 as necessary, so that the cup 10 can be prevented from returning to the three-dimensional shape again from the folded flat shape (step S4). .

The perspective view which observed the folding cup of this invention from diagonally upward. The perspective view which observed the folding cup of this invention from diagonally downward. The perspective view which observed the folding cup of this invention from the substantially side. The top view which observed the inside from the upper direction of the folding cup of this invention. The figure which cut | disconnected the folding cup of this invention by HC shown in FIG. 2, and observed from diagonally downward. The horizontal sectional view which cut | disconnected the folding cup of this invention by HC shown in FIG. The figure explaining the folding procedure of the folding cup of this invention.

  With reference to FIGS. 1-6, the structure of the folding cup 10 of this invention is demonstrated.

  The folding cup 10 according to the present invention is a paper cup or a resin cup having a circular or square horizontal cross section. In the embodiment shown in FIGS. 1 to 6, a resin cup 10 having a truncated cone shape will be described as an example.

  The folding cup 10 according to the present invention has a side wall 11 and a bottom 13. A first vertical mountain fold portion 14 and a second vertical mountain fold portion 15 are formed at the position of the side wall 11 symmetric with respect to the center line standing vertically from the center of the bottom portion 13. The lower ends of the first vertical mountain folded portion 14 and the second vertical mountain folded portion 15 are connected to both ends of a parallel valley folded portion 17 formed in parallel with the bottom portion 13. The first vertical mountain fold portion 14, the second vertical mountain fold portion 15, and the parallel valley fold portion 17 are folds formed on the side wall 11. The height from the bottom part 13 of the parallel valley fold part 17 is about 1/2 of the outer method W of the bottom part 13 as shown in FIG.

  In the lower part of the side wall 11, a first triangular surface 18 having a triangular shape in a side view with the apex near the intersection of the first vertical mountain fold 14 and the parallel valley fold 17 and a part of the bottom 13 as a base is formed. . Similarly, in the lower part of the side wall 11 facing the first triangular surface 18, a side view triangular shape having a vertex near the intersection of the second vertical mountain fold 15 and the parallel valley fold 17 and a part of the bottom 13 as a base. The second triangular surface 19 is formed. A hypotenuse fold 20 is formed on each of the two hypotenuses of the first and second triangular planes 18 and 19.

  The first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 are formed from the upper opening portion 12 toward the bottom portion 13 and spread outward when the user crushes the upper opening portion 12 of the cup 10. Thus, it is a site | part which forms the fold of a mountain fold. In addition, the 1st vertical mountain fold part 14 and the 2nd vertical mountain fold part 15 do not necessarily need to be formed to the opening upper part 12, and if it is formed toward the opening upper part 12, the side wall 11 can be folded.

  As shown in FIG. 1, the shape of the 1st vertical mountain fold part 14 and the 2nd vertical mountain fold part 15 can form the ridgeline of a protruding item | line or a curved protruding item | line, and can use the structure which makes it easy to bend. Moreover, it can form easily by bending by making it thinner than the side wall 11 (half cut can also be used). Moreover, the structure which forms a level | step difference in the side wall 11 in the right and left of the 1st vertical mountain fold part 14 (and 2nd vertical mountain fold part 15), and can make it easy to bend can also be used. These steps can be 1 to 10 times the thickness of the material of the side wall 11.

  The parallel valley fold portion 17 is formed at the bottom portion of the side wall so that the side wall 11 and the bottom portion 13 are aligned in parallel when the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 are mountain-folded to bring the side walls 11 close to each other. 16 is a fold for valley folding for folding 16. When the folding cup 10 is formed by vacuum molding or injection molding, the parallel valley folds 17 are formed in steps for the convenience of removing the product from the mold, and the side wall lower portion 16 is located inside the cup 10 rather than the side wall 11. It is preferable to be configured to be positioned. In addition to forming the parallel valley folds 17 as steps, a method of forming only a fold portion thinly by half-cut or molding, or a method of forming a ridge of a convex or curved ridge. You can also.

  When the first triangular face 18 and the second triangular face 19 are folded so that the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 of the cup 10 are folded in a mountain-like manner, the side walls 11 and This is a surface formed to reduce the distortion generated between the side wall lower portion 16 and the bottom portion 13. Similar to the parallel valley folds 17, the hypotenuse folds 20 of the first triangular surface 18 and the second triangular surface 19 are formed in steps, and the first triangular surface 18 and the second triangular surface 19 than the side wall 11 and the side wall lower portion 16. Is preferably located inside the cup 10. In addition to forming the hypotenuse fold 20 as a step, it is also possible to adopt a method of forming only a fold portion thinly by half-cutting or molding, or a method of forming a ridge of a convex or curved ridge. it can.

  With reference to FIG. 7, the folding procedure of the folding cup 10 of this invention is demonstrated.

(Step S1)
When the user has finished using the cup 10 according to the present invention, the cup 10 can be folded in order to effectively use the volume of the trash box when the cup 10 is discarded. First, in step S1, the user presses the side walls 11 between the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 of the cup 10 with fingers, and folds the upper portion of the cup 10.

(Step S2)
Next, the side wall 11 near the parallel valley fold part 17 is pressed together to make the parallel valley fold part 17 into a valley fold.

(Step S3)
Then, the bottom portion 13, the first triangular surface 18, and the second triangular surface 19 are flush with each other and bent so as to be parallel to the side wall 11. Furthermore, by pressing the bottom portion 13 and the side wall 11 together, the cup 10 that is a three-dimensional shape can be folded into a flat shape.

(Step S4)
Thereafter, the folded cup 10 can be fixed using the fixing band 21 as necessary. In the embodiment shown in FIG. 7, the fixed band 21 is extended from the vicinity of the upper opening 12 of the cup 10. A convex band fixing portion 22 is formed at the end of the fixing band 21. The convex band fixing portion 22 is formed to have a size that fits into a concave bottom fixing portion 23 formed on the bottom portion 13 of the cup 10. By fixing the folded cup 10 using the fixed band 21, it is possible to prevent the cup 10 from returning to the three-dimensional shape again from the folded flat shape. Thereby, the volume increase of the discarded cup 10 can be prevented, and the volume of the trash can can be used effectively.

  The folding cup of the present invention can be applied to cups for beverages, medical use, industrial use and other uses, and disposable cups.

DESCRIPTION OF SYMBOLS 10 ... Cup 11 ... Side wall 12 ... Upper part of opening 13 ... Bottom part 14 ... 1st vertical mountain fold part 15 ... 2nd vertical mountain fold part 16 ... Lower side wall 17 ... Parallel Valley folding part 18 ... First triangular face 19 ... Second triangular face 20 ... Slope side folding part 21 ... Fixing band 22 ... Band fixing part 23 ... Bottom fixing part

Claims (9)

A cup 10 comprising a side wall 11 and a bottom 13,
A first vertical mountain fold portion 14 is formed at a position facing the side wall 11 so as to expand outward when the upper opening portion 12 of the cup 10 is crushed from the upper opening portion 12 toward the bottom portion 13. And the second vertical mountain fold 15,
The side wall 11 is formed in parallel with the bottom portion 13, and when the first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 are mountain-folded to bring the side walls 11 close to each other, the side wall 11 and the bottom portion 13 are aligned in parallel. Folding cup 10 provided with parallel valley fold part 17 which forms a crease.   The cup 10 according to claim 1, wherein the distance from the bottom portion 13 of the parallel valley fold portion 17 is half of the outer method W of the bottom portion 13.   The cup 10 according to claim 1, wherein the first vertical mountain fold portion 14, the second vertical mountain fold portion 15, or the parallel valley fold portion 17 is a thin wall portion that is easily formed by being thinner than the side wall 11.   The cup 10 according to claim 1, wherein the first vertical mountain fold portion 14, the second vertical mountain fold portion 15, or the parallel valley fold portion 17 is formed by a ridge line of a ridge or a curved ridge.   One side wall 11 between the first vertical mountain fold part 14 and the second vertical mountain fold part 15, or the side wall lower part 16 between the parallel valley fold part 17 and the bottom part 13 is connected to the other side wall via a step fold. The cup 10 according to claim 1, wherein the cup 10 is formed inside the one-stage cup 10 with respect to 11. A first triangular surface 18 having a triangular shape in a side view with a vertex near the intersection of the first vertical mountain fold 14 and the parallel valley fold 17 and a part of the bottom 13 as a base;
A second triangular surface 19 having a triangular shape in a side view with the vicinity of the intersection between the second vertical mountain fold 15 and the parallel valley fold 17 as a vertex and a part of the bottom 13 as a base;
The first vertical mountain fold portion 14 and the second vertical mountain fold portion 15 are fold-folded to bring the side walls 11 closer together, and the parallel valley fold portion 17 is fold-folded so that the side wall 11, the side wall lower portion 16, and the bottom portion 13 are aligned in parallel. The cup 10 according to any one of claims 1 to 5, further comprising two oblique side folds 20 on the first triangular surface 18 and the second triangular surface 19 that are mountain-folded when bent in this manner.   The cup 10 according to claim 6, wherein the first triangular surface 18 and the second triangular surface 19 are formed inside the one-stage cup 10 with respect to the side wall 11 and the side wall lower portion 16 via the stepped bevel side fold portion 20.   The cup 10 according to any one of claims 1 to 7, wherein the cup 10 is formed by vacuum molding or injection molding.   The fixing band 21 extended from a side wall, the band fixing part 22 formed in the fixing band 21, and the bottom fixing part 23 formed in the bottom part 13 and engaging with the band fixing part 22 are provided. The cup 10 according to any one of the above.

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