KR101910626B1 - Dual cup and the method of manufacturing thereof - Google Patents

Abstract

The present invention relates to a half cup and a method of manufacturing the same. The half-cup according to an embodiment of the present invention includes a first semicircular cup and a second semicircular cup integrally formed with an inner top, and a second semicircular cup covering the top of the first and second semicircular cups, Wherein the lid comprises a first fixing part formed at an edge of the disk part and bent in a direction intersecting with the disk part, a second fixing part formed at the edge of the first fixing part and the first and second semicircular cups A second fixing part formed in a radial direction on the disk part and formed to be bent in an intersecting direction with the disk part so as to face each other with an outer upper end therebetween; And a third and a fourth fixing parts formed on the disk part. Accordingly, the first and second semicircular cups and the lid are combined with each other to easily prevent the lid from being separated, thereby improving the usability of the half-cup.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a half-

The present invention relates to a half cup and a method of manufacturing the same. More particularly, the present invention relates to a half-cup for dividing into two and containing different drinking water, and a method for manufacturing the same.

For example, cups for containing drinking water containing coffee, beverages and the like generally have one internal space. Half cups divide the internal space into two, allowing separate drinking water to be stored separately. (Patent Document 1) and (Patent Document 2) disclose this.

(Patent Literature 1) and (Patent Literature 2) refer to a disposable half-cup, in which a single cup is used to divide the internal space into which the beverage is placed so that two beverages can be eaten, A pair of straw holes can be drilled into the lid.

Therefore, in Patent Documents 1 and 2, a lid is placed on a half-cup, and two straws are used to feed two drinks.

However, the conventional half cups according to the prior art, including Patent Documents 1 and 2, have a general structure in which the inner periphery of the lid is joined to the peripheral edge of the cup, and it is easily separated to the extent of pulling one of the straws There is a problem.

That is, as described above, the lid which is used by covering the half cup can be formed by piercing the straw holes into a pair, which means that the lid is formed with an eccentricity deviating from the center of the lid.

Therefore, when one of the straws is pulled in the process of consuming the drinking water contained in the half cup, the circumference of the lid adjacent to the opposite straw can be separated from the half cup. According to the conventional half cup, , Which is a result of completely separating the entire lid from the half cup when a part of the lid is separated from the cup. As a result, there is a problem that the drinking water may be poured or foreign matter may enter, There is.

Korean Patent Publication No. 10-2011-0110071 Korean Utility Model Publication No. 20-2010-0010675

It is an object of the present invention to provide a half-cup which can easily prevent the lid from being separated from the cup by constituting a coupling relationship in which the lid and the cup can be combined with each other.

Another object of the present invention is to provide a half-cup production method capable of easily producing half-cups by stretch-blow molding.

In order to solve the above problems,

A half cup according to an embodiment of the present invention includes a first semicircular cup having a bottom surface of a semicircular shape and a side surface extending upward from the bottom surface and forming a receiving space;

A second semicircular cup formed integrally with the first semicircular cup and the inner upper end, the semicircular cup having a bottom surface and a side surface extending upward from the bottom surface and forming a receiving space; And

A lid which covers an upper part of the first and second semicircular cups and has a straw hole drilled in the first and second semicircular cups so that straws can be inserted into the first and second semicircular cups;

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Wherein the first and second semicircular cups have protrusions formed in an upper direction of the bottom surface so as to reduce an area of the bottom surface and prevent sliding due to surface tension;
Further comprising:

The lid includes a first fixing part bent at an edge of the circular plate in an intersecting direction with the circular plate to surround a periphery of an outer upper end of the first and second semicircular cups;

A second fixing part bending in a direction intersecting with the disc part so as to face the first fixing part and the outer upper ends of the first and second semicircular cups and radially arranged along the circumference of the disc part; And

A third and fourth fixing parts formed in a straight line along the inner upper end, the first and second semicircular cups being bent in an intersecting direction with the first and second semicircular cups so as to face each other with an inner upper end of the first and second semicircular cups facing each other;

.

Further, in the semi-cup according to an embodiment of the present invention, the first and second semicircular cups may have a narrower width than the upper portion and a tucking jaw may be formed between the upper portion and the lower portion.

Further, in the semi-cup according to an embodiment of the present invention, the first and second semicircular cups have ribs formed along the periphery of the outer upper end;

As shown in FIG.

Further, in the semi-cup according to an embodiment of the present invention, the lid may include an extension part bent outwardly at the lower end of the first fixing part;

As shown in FIG.

Further, in the half-cup according to an embodiment of the present invention, the lid is integrally formed with the disc portion and covers the top of the straw hole;

As shown in FIG.

Further, in the semi-round cup according to an embodiment of the present invention, an annular fastening band made of paper and fastened to the lower part of the first and second semicircular cups;

As shown in FIG.

According to another aspect of the present invention, there is provided a method of manufacturing a half cup, comprising the steps of: (a) injection molding a preform having an inner upper end integrally formed with a jig provided on a rotary table;

(b) Stretch blow molding the preform through a blow machine including a pair of extension rods and a base plate for rotating the rotary table and lifting the pair of extension rods to form a semicircular bottom surface And a first and a second semicircular cups each having an upper surface extending from the bottom surface to form a receiving space and having a cross section reduced from the upper surface to the lower surface and a side surface having a tucking jaw formed between the upper surface and the lower surface, step; And

(c) separating the first and second semicircular cups from the jig by inserting the ejector pins into the jig after rotating the rotary table;

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In addition, in the half cup production method according to an embodiment of the present invention, steps (a), (b), and (c) may be sequentially performed while rotating the rotary table at an angle of 120 °.

These solutions will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may appropriately define the concept of a term in order to best describe its invention The present invention should be construed in accordance with the spirit and scope of the present invention.

According to an embodiment of the present invention, the lids are coupled to the first and second semicircular cups through the first, second, third, and fourth fixing portions, so that even if any one fixing portion is separated, Therefore, there is an improvement in the ease of use of half a cup.

According to the manufacturing method of the present invention, the injection molding of the preliminarily molded article, the stretch blow molding of the first and second semicircular cups, and the discharge of the first and second semicircular cups, Since stretch blowing is possible, the production time of half a cup can be effectively shortened.

1 is a perspective view of a half-cup according to an embodiment of the present invention.
2 is a cross-sectional view illustrating the first and second semicircular cups according to an embodiment of the present invention.
3 is a perspective view showing a state in which the first and second semicircular cups according to the embodiment of the present invention are placed on a packaging box.
4 is a cross-sectional view illustrating a half-cup according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of a semi-cup according to an embodiment of the present invention. FIG.
6 is an exploded perspective view showing a half-cup production method according to an embodiment of the present invention.
7 is a sectional view showing a half-cup production method according to an embodiment of the present invention.

The specific aspects, specific technical features of the present invention will become more apparent from the following detailed description with reference to the accompanying drawings. Note that, in the drawings, like reference numerals denote like elements throughout the drawings, unless otherwise indicated. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, the half cup 1 according to the embodiment of the present invention is formed in a semi-circular shape so as to contain different drinking water, so that the inner upper ends 10a and 20a are integrally formed, The cups 10 and 20 can be used to cover the upper part of the first and second semicircular cups 10 and 20 and to hold the straws 2 in the first and second semicircular cups 10 and 20, And a lid 30 including a disc portion 31 in which a straw hole 31a is perforated.

The first and second semicircular cups 10 and 20 each have a semicircular bottom surface and side surfaces extending upward from the bottom surface and forming the receiving spaces 11 and 21. In order to reduce the area of the bottom surface and prevent slipping due to surface tension, protrusions (10d, 20d) are formed on the bottom surface in an upward direction.

The first and second semicircular cups 10 and 20 are formed by using a resin which is easy to be injection-molded and easy to mold through, for example, stretch blow, but it is not necessarily limited thereto Leave.

In this case, the first and second semicircular cups 10 and 20 are formed in such a shape that their cross-sectional area decreases from the upper part to the lower part, and the tucks 10c and 20c are formed between the upper part and the lower part, As shown in FIG.

That is, the upper ends 10b and 20b of the first and second semicircular cups 10 and 20 are hooked to the tucks 10c and 20c of the first and second semicircular cups 10 and 20, As a result, the first and second semicircular cups 10 and 20 can be easily taken out one by one.

Therefore, according to the embodiment of the present invention, for example, it is possible to store a large capacity in the packing box 3, thereby reducing the logistics cost and the transportation cost, and is also advantageous in selecting the loading place.

The first and second semicircular cups 10 and 20 have ribs 12 and 22 formed around the outer ends 10b and 20b of the first and second semicircular cups 10 and 20, The rigidity of the upper ends 10b and 20b can be easily reinforced.

1 and 4, the lid 30 according to the embodiment of the present invention is formed by bending a first fixing part 32 at an edge of a disk 31 in a direction intersecting with the disk 31 A first fixing part 32 and a second fixing part 32 bent in an intersecting direction with the disc part 31 so as to face the outer upper ends 10b and 20b of the first and second semicircular cups 10 and 20, And the fixing portion 33 is radially arranged on the disk portion 31. [ The first and second semicircular cups 10 and 20 are bent in an intersecting direction with the circular plate 31 so as to face each other with the inner side upper end 10a and 20a of the first and second semicircular cups 10 and 20 facing each other, And the third and fourth fixing portions 34 and 35 are arranged in a straight line along the first and second fixing portions 20a and 20a.

That is, the first fixing part 32 is bent downward from the disc 31 in the figure so as to surround the outer upper ends 10b and 20b of the first and second semicircular cups 10 and 20 . The lower end of the first fixing part 32 is bent outward to form an enlarged portion 36. The first and second semicircular cups 10 and 20 are connected to each other by a cap 30 can be easily separated when they are separated.

The second fixing part 33 formed to face the second fixing part 33 and the upper ends 10b and 20b of the first and second semicircular cups 10 and 20 faces the circular plate part 31, The lid 30 can be configured to have a coupling relationship with the outer ends 10b and 20b when the lid 30 is coupled to the first and second semicircular cups 10 and 20 .

The third and fourth fixing portions 34 and 35 are formed along the central portion of the disc portion 31, that is, along the inner upper ends 10a and 20a of the first and second semicircular cups 10 and 20, It is possible to form a coupling relationship in which the inner upper ends 10a and 20a are interposed therebetween.

Therefore, according to an embodiment of the present invention, a part of the lid 30 can be separated during the movement of the first and second semicircular cups 10 and 20 or the intake of the drinking water through the straw 2 It is possible to easily prevent the lid 30 from being completely separated from the first and second semicircular cups 10 and 20.

Meanwhile, the lid 30 according to an embodiment of the present invention further includes a hole cover 31b formed integrally with the disc portion 31 and covering the upper portion of the straw hole 31a. The hole cover 31b is bent in the vertical direction so as to be arranged at the upper part of the straw hole 31a so as to form a hinge portion 31c and then horizontally with respect to the hinge portion 31c As shown in Fig.

Therefore, according to the embodiment of the present invention, the straw hole 31a is normally covered with the hole cover 31b, and when the drinking water is ingested, the straw hole 31a can be rotated in one direction around the hinge portion 31c, The straw 2 can be easily inserted into the openings 31a.

As shown in FIG. 5, the half cup 1 according to the embodiment of the present invention further includes an annular fastening band 40 used by being fastened to the first and second semicircular cups 10 and 20. The annular fastening band 40 is inserted into the accommodating space 11 or 21 through the straw 2 by, for example, holding the lower part of the first and second semicircular cups 10 and 20, Thereby providing ease of consumption of the drinking water contained therein.

The annular fastening band 40 can easily absorb moisture contained in the surface of the first and second semicircular cups 10 and 20 and can easily print a trademark or an advertisement Like the first and second semicircular cups 10 and 20, the cross-sectional area of the first and second semicircular cups 10 and 20 decreases.

A method of manufacturing a half cup according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 6 to 7, a method for manufacturing a half-cup according to an embodiment of the present invention includes firstly forming an injection mold 60 on a jig provided at a lower portion of the rotary table 50, And the preliminarily molded product 61 in which the inner upper ends 10a and 20a are integrally formed is injection molded. The preform 61 may also be referred to as a preform.

The rotary table 50 is formed by injection molding of a preform 61 while rotating through a rotary shaft 50a and a step of stretch blowing the preform 61 to the first and second semicircular cups 10 and 20 Stretch Blow) and discharging the first and second semicircular cups (10) and (20). The steps are sequentially performed while rotating at an angle of, for example, 120 °.

However, it should be noted that the rotation angle (120 deg.) Of the rotation shaft 50a may be divided into various angles depending on a user's need.

The injection mold 60 is provided with an injection mold 60 for injecting and molding the preliminarily molded product 61 using a resin so as to be movable up and down so as to be engageable with the lower portion of the jig 51, .

The preform 61 which has been injection-molded through the injection mold 60 is positioned at the lower part of the drawing of the blowing machine 70 through the rotation of the rotary table 50, And the first and second semicircular cups 10 and 20 are formed by blow molding.

The blow machine 70 has a pair of extension rods 72 and a base plate 71 for raising and lowering the pair of extension rods 72. The blow molding machine 70 is a typical structure for stretch blow molding of the preform 61, .
The base plate 71 is lowered and the preformed product 61 is stretched by the pair of extension bars 72 so that the accommodation space 11 is extended from the bottom surface and the bottom surface of the semi- The first and second semicircular cups 10 and 20 are formed to have a cross-sectional shape decreasing from the upper part to the lower part and having side surfaces on which the tacking jaws 10c and 20c are formed between the upper part and the lower part. do. Here, it is possible to perform molding while supplying air at a constant pressure along with the stretching through the pair of stretching rods 72.

When the molding of the first and second semicircular cups 10 and 20 is completed through the blowing machine 70, the rotary table 50 is rotated to separate the first and second semicircular cups from the jig 51, . The ejection of the first and second semicircular cups 10 and 20 may be performed by inserting the ejector pins 80 into the jig 51 at the upper portion of the rotary table 50 to form the first and second semicircular cups 10 and 20 ) Is separated from the jig 51, it can be easily proceeded.

Thus, according to one embodiment of the present invention, injection molding of the preform 61 in the rotary table 50, manufacture of the first and second semicircular cups 10 and 20, and injection molding of the first and second semicircular cups 10 The first stage Stretch Blow can be performed. Therefore, the manufacturing time can be effectively shortened.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that the terms "comprises", "comprising", or "having", etc., as used herein, mean that a component can be implanted unless specifically stated to the contrary, And all terms including technical and scientific terms are to be understood as being understood to be generally understood by those skilled in the art to which the invention belongs, Have the same meaning.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1 - half a cup 2 - straw
3 - Packing box 10 - 1st semicircular cup
10a, 20a - Inner top 10b, 20b - Outer top
10c, 20c - a chuck 10d, 20d -
11, 21 - receiving space 12, 22 - rib
20 - 2nd semicircular cup 30 - lid
31 - disc portion 31a - straw hole
31b - Hole cover 31c - Hinge part
32 - first fixing part 33 - second fixing part
34 - the third fixed point 35 - the fourth fixed point
36 - Extension 40 - Annular fastening band
50 - rotary table 50a - rotary shaft
51 - Jig 60 - Injection mold
61 - Preform 70 - Blow machine
71 - Base plate 72 - Opening bar
80 - Ejector pin

Claims (8)

delete delete delete delete delete delete (a) coupling an injection mold to a jig provided on the rotary table and injection-molding a preform having an inner upper end integrally formed thereon;
(b) stretch blow molding the preform through a blow machine including a pair of extension rods and a base plate for lifting the pair of extension rods after rotating the rotary table, thereby forming a semi-circular bottom surface and a bottom surface Forming the first and second semicircular cups, each of the first and second semicircular cups having an upper portion and a lower portion formed between the upper portion and the lower portion; And
(c) separating the first and second semicircular cups from the jig by inserting the ejector pins into the jig after rotating the rotary table;
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The method of claim 7,
(A), (b), and (c) sequentially while rotating the rotary table at an angle of 120 °.

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