JP3023252U - Straw for liquid enclosure - Google Patents

Abstract

(57) [Summary] [Purpose] After the straw is inserted into the container, it is intended to prevent the beverage from spouting from the straw due to the pressure difference between the inside and the outside of the container. According to the straw for a liquid-filled container of the present invention, an expanded diameter portion having an outer diameter larger than an outer diameter of an area located at a portion of an opening of the container in a use state is provided in an insertion area portion. Alternatively, a concavo-convex portion is provided on the outer surface of the area located at the opening portion. With this configuration, the gap formed between the opening and the outer surface of the straw can maintain the pressure balance inside and outside the container and prevent the beverage from spouting.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a straw for a liquid-filled container, and more particularly to a straw to be drunk from a container containing a beverage.

[0002]

[Prior art]

 Some commercially available beverages are sold in a form in which the beverage is enclosed in a paper container or the like packed in an aluminum pack or a vinyl pack. A straw for drinking is attached to the side of the container. Conventionally, a drinker has a thin opening made of aluminum foil or synthetic resin, which is provided on the upper surface of the paper container, pierces the tip of the straw to make a hole, and inserts the straw. I drink beverages.

For example, FIG. 12 is a state diagram of drinking a beverage from a paper container using a straw having a conventional shape. As shown in the figure, the straw 100 has a main body portion having substantially the same diameter, and a lower end portion thereof has a tip portion 101 inclined with respect to the longitudinal direction. The aluminum-packed paper container 102 is formed, for example, in the shape of a box, has a thin opening 108 on its upper surface, and has a beverage 104 and a space 106 not filled with the beverage 104 inside. ing. The straw 100 penetrates through the thin opening portion 108 and is inserted into the container 102. The drinker is drinking the beverage 104 from the upper end of the straw 100 protruding from the opening 108 in the container 102.

[0004]

[Problems to be solved by the device]

 However, since the diameter of the opening 109 formed by the straw 100 is substantially the same as the outer diameter of the straw 100, the opening 109 is in close contact with the outer peripheral surface of the straw 100. Therefore, when pressure is applied to the container 102 from the outside or when the beverage 104 and the space 106 in the container 102 are expanded by heat or the like, pressure is generated inside the container and the pressure is applied to the outside of the container. I try to escape. As a result, the beverage is spouted from the upper end of the straw 100 that connects the inside and the outside of the container. Then, there was a problem that the spouted beverage would stain hands, clothes, a table and the like.

FIG. 13 shows an example of the above problem. When the drinker grips the side surface of the container 102 and applies a force in the direction of the arrow 110, the container 102 is deformed as illustrated. Then, the deformation causes a pressure change in the container 102, so that the beverage is spouted from the upper end of the straw 100 as illustrated.

The present invention has been made in order to solve the above problems, and its purpose is to insert a beverage from a straw caused by a pressure difference between the inside and the outside of the container after inserting the straw into the container. Another object of the present invention is to provide a straw for liquid-filled containers that can prevent spouting.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a device according to claim 1 of the present invention is a straw for a liquid-filled container, which is used by being pierced and inserted into an opening of a container in which a liquid is sealed. In the used area portion, an enlarged diameter portion having an outer diameter larger than the outer diameter of the area located in the opening portion portion in the use state is formed.

Therefore, when the straw is inserted into the container, the enlarged diameter portion provided in the insertion area of the straw passes through the opening portion to form a hole having a large diameter enlarged portion. Therefore, in the insertion completed state, that is, in the used state, the opening is larger than the outer diameter of the straw region located at the opening. Therefore, a gap is formed between the opening and the straw.

As a result, when a pressure is applied to the container from the outside and a pressure difference between the inside and the outside of the container occurs, the air inside the container is discharged from the gap to allow the pressure. And keep the pressure balance. As a result, it is possible to prevent the beverage from spouting from the straw.

Further, the invention according to claim 2 is characterized in that the enlarged diameter portion is formed by a protruding portion protruding outward from the outer peripheral surface.

Therefore, by providing the protrusion as the enlarged diameter portion of the above-mentioned claim 1, it is possible to prevent the beverage from being spouted from the straw, as in the case of the operation of claim 1.

Further, the invention according to claim 3 is characterized in that the projection is constituted by providing a plurality of small projections in the circumferential direction.

Therefore, when the small protrusion passes, a cut is made in the opening portion, the force of piercing and inserting the straw is small, and a gap can be easily formed. Similarly, it is possible to prevent the beverage from spouting from the straw.

Further, the invention according to claim 4 is characterized in that the projection is formed by a plurality of ridges extending in the longitudinal direction of the straw.

Therefore, since it is a long protrusion, it can be easily inserted into the opening portion, and like the effect of the first aspect, it is possible to prevent the beverage from spouting from the straw.

According to a fifth aspect of the present invention, in a straw for a liquid-filled container which is used by being pierced and inserted into an opening portion of a container in which a liquid is enclosed, the straw is positioned at a portion of the opening portion in the use state. It is characterized in that an uneven portion is formed on the side surface of the region to be formed.

Therefore, in the use state of the straw, the opening portion is always spread by the convex portion of the uneven portion, and the concave portion forms a gap between the opening portion and the straw.

As a result, when a pressure is applied to the container from the outside, and a pressure difference between the inside and the outside of the container occurs, the air inside the container is discharged through the gap to allow the pressure. And keep the pressure balance. As a result, it is possible to prevent the beverage from spouting from the straw.

Further, in the inventions according to claims 6 and 7, the uneven portion is formed by a ridge or a groove extending on the outer peripheral surface of the straw at predetermined intervals in the longitudinal direction of the straw. It is characterized by being formed.

Therefore, since the ridge or the groove has a certain length, it is easy to always form a gap in the opening, and the straw can be formed like the operation of the fifth aspect. Beverage can be prevented from spouting.

[0021]

[Embodiment of device]

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

FIG. 1 shows a straw 30 which is an embodiment of the present invention. The straw 30 is composed of an upper portion 32 and a lower portion 34, the upper portion 32 having substantially the same diameter, and the lower portion 34 having an outer diameter larger than that of the upper portion 32 and having substantially the same diameter. The boundary between the upper part 32 and the lower part 34 is formed as a tapered step. Further, the lower portion 34 has a tip portion 31 having an end surface inclined with respect to the longitudinal direction of the straw 30 below.

FIG. 2 shows a usage state diagram of the straw 30 shown in FIG. 1, and the straw 30 is inserted into the opening 108 provided on the upper surface of the container 102 by piercing.

As shown, the lower part 34 of the straw 30 is completely inserted into the container 102, the upper part 32 has the lower end inside the container 102, and the upper end outside the opening 108, that is, from the container 102. It projects upward.

When the straw 30 is pierced and inserted into the opening portion 108, an opening 109 having an inner diameter substantially the same as the outer diameter of the lower portion 34 is formed by the lower portion 34, and the opening portion 109 and the upper portion 32 are formed. A gap 112 is formed between the outer surface and the outer surface. The gap 112 serves as an air flow port.

FIG. 3 shows another form in which a part of the straw 30 is modified. In the straw 30 shown in FIG. 3A, the lower portion 34 has a tapered shape in which the outer diameter gradually increases from the tip portion 31 toward the step portion which is the boundary portion. Therefore, it becomes possible to pierce and insert the straw 30 more smoothly when inserting it into the opening 108.

Further, in the straw 30 shown in FIG. 3B, an enlarged diameter portion 34a having an outer diameter larger than the outer diameter of the upper portion 32 is provided above the lower portion 34. Therefore, since it is not necessary to increase the outer diameter of the tip portion that pierces the opening portion 108, the tip portion 31 can be pierced more easily into the opening portion 108 when piercing and inserting.

In addition, the straw 30 shown in FIG. 3C has the enlarged diameter portion 34a formed at the upper position of the lower portion 34 as in the case of FIG. 3B. The diameter-expanded portion 34a has a tapered shape whose outer diameter gradually decreases downward. Therefore, when the straw 30 is pierced and inserted into the opening 108, the piercing operation of the straw 30 can be performed more easily and the inserting operation can be performed more smoothly than in FIG.

FIG. 4 is an explanatory view of a state in which the beverage 104 is drunk from the container 102 using the straw 30 shown in FIG. 3B. As shown, the insertion region of the straw 30 passes through the opening 108 and is inserted into the container 102. Here, when the straw 30 is pierced and inserted into the container 102, an opening 109 having a diameter substantially equal to the outer diameter of the expanded diameter portion is formed in the opening 108 by the expanded diameter portion 34a. A gap 112 is formed between 109 and the outer surface of the upper portion 32.

Here, when pressure is applied to the container 102 from the direction of the arrow 110 by gripping the side surface of the container 102 and the container 102 is deformed as shown in the figure, the air in the space 106 is removed from the gap 112. The deformed amount of the container 102 is discharged (in the direction of arrow 114).

Therefore, since the gap 112 acts as an air flow port and maintains the average pressure between the inside and the outside of the container 102, it is possible to prevent the beverage 104 from spouting from the upper end of the straw 30.

FIG. 5 shows still another embodiment of the straw 30 of the present invention. The straw 30 shown in FIG. 5 (a) is configured to have substantially the same diameter, and a reduced diameter portion 36 having a diameter smaller than that of the other portion is provided at a position located at the opening 108 of the container 102 in a used state. ing. 5 (b) shows a usage state diagram of the straw 30 shown in FIG. 5 (a), and the same elements as the constituent members of the above-mentioned embodiment are designated by the same reference numerals. Detailed description is omitted.

As shown in the figure, the reduced diameter portion 36 is located at the opening portion 108 in the inserted state. Therefore, a gap portion 112 is formed between the opening portion 109 opened by the insertion area portion of the straw 30 and the reduced diameter portion 36. Therefore, the gap 112 functions as an air circulation port as in the case of FIG. 4 described above.

FIG. 6 shows still another embodiment of the straw 30 of the present invention. The straw 30 shown in FIG. 6 (a) is formed by forming the enlarged diameter portion 34 of the straw 30 described in the description of the embodiment of FIG. As shown in the drawing, the straws 30 are formed to have substantially the same diameter, and a plurality of small projections 38 projecting in the radial expansion direction are formed in the region to be inserted into the container 102 at regular intervals in the circumferential direction. . Further, the small protrusion 38 is formed in the shape of an isosceles triangle in the longitudinal direction.

FIG. 6 (b) shows a usage state diagram of the straw 30 shown in FIG. 6 (a). When the straw 30 is pierced and inserted into the opening portion 108, the small protrusion 38 forms an opening 109 having the same outer shape as that of the small protrusion 38. Therefore, a gap 112 formed by the small projection 38 exists between the opening 109 and the straw 30. The gap 112 also serves as an air circulation port.

FIG. 7 shows another form in which a part of the straw 30 shown in FIG. 6A is modified.

The straw 30 shown in FIG. 7A is provided with a plurality of small projections 38 on the outer periphery in the vicinity of the inclined end surface of the tip portion 31 of the straw 30. In the straw 30 shown in FIG. 7B, the shape of the small protrusion 38 of the straw 30 shown in FIG. 7A is a right-angled triangle having an acute angle on the lower side. Therefore, when the straw 30 is pierced and inserted into the container 102, the small protrusions 38 are sequentially inserted and inserted from the tipmost small protrusion 38 of the straw 30, so that the straw 30 can be pierced and inserted more smoothly. it can.

Next, still another embodiment is shown in FIG. 8, and the same elements as the constituent members of the above-mentioned embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, the enlarged diameter portion is changed to the ridge portion 40. As shown in the drawing, the straw 30 is formed to have substantially the same diameter, and has a ridge portion 40 formed in the region to be inserted into the container 102 over a certain length in the longitudinal direction. . In this embodiment, a plurality of them are provided at regular intervals in the circumferential direction.

Next, FIG. 9 shows another form of the straw 30 of the present invention. In the straw 30 shown in FIG. 9A, the protruding portion 40 of the straw 30 described in FIG. 8 is formed in a region located at the opening 108 in a use state.

FIG. 9B shows a usage state diagram of the straw 30 shown in FIG. 9A. When the straw 30 is inserted, the opening portion 109 formed in the opening portion 108 is expanded by the protrusion 40 provided in the area located in the opening portion 108. A gap 112 is formed with the portion 108. Further, when the straw 30 is inserted and the straw 30 is rotated about its central axis, the diameter of the opening 109 is expanded by the protrusion 40, and the gap 112 can be made larger. Therefore, since it is possible to achieve a better effect of the air circulation port and to maintain the average pressure between the inside and the outside of the container 102, it is possible to prevent the beverage 104 from spouting from the upper end of the straw 30. .

Next, FIG. 10 shows another form of the straw 30 of the present invention. The straw 30 shown in FIG. 10 (a) is provided with a plurality of concave groove portions 42 in the longitudinal direction from the upper end to a predetermined position in the insertion area. Then, as shown in the usage explanatory state diagram of FIG. 10B, the gap 112 is formed in the concave groove portion 42 in the inserted state of the straw 30.

Further, FIG. 11 shows that the recessed groove portion 42 shown in FIG. 10A is formed in a shorter range, that is, only in a predetermined region located in the opening portion 108 in the used state. is there. Even if formed in this manner, the concave groove portion 42 functions as an air circulation port and maintains the average pressure between the inside and the outside of the container 102, similar to that described in the embodiment of FIG. 10 described above. As a result, it is possible to prevent the beverage 104 from spouting from the upper end of the straw 30.

[0043]

[Effect of device]

 As described above, according to the straw for a liquid-filled container according to the present invention, when the straw is inserted, the opening formed in the opening and the outside of the area of the straw located in the opening are opened. A gap that functions as an air circulation port is formed between the side surface and the side surface. This makes it possible to maintain the average pressure inside and outside the container and prevent the beverage from unexpectedly spouting from the upper end of the straw.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view showing an embodiment of a straw for liquid-filled container to which the present invention is applied.

FIG. 2 is a use state diagram showing an outline of use of the straw of FIG.

FIG. 3 is a perspective view showing another embodiment of the straw of the present invention.

FIG. 4 is an explanatory plan view showing an outline of use of the straw of FIG.

FIG. 5 is a schematic explanatory view showing another embodiment of the straw of the present invention.

FIG. 6 is a schematic explanatory view showing another embodiment of the straw of the present invention.

FIG. 7 is a perspective view showing another embodiment of the straw of the present invention.

FIG. 8 is a perspective view showing another embodiment of the straw of the present invention.

FIG. 9 is a schematic explanatory view showing another embodiment of the straw of the present invention.

FIG. 10 is a perspective view showing another embodiment of the straw of the present invention.

FIG. 11 is a perspective view showing another embodiment of the straw of the present invention.

FIG. 12 is a plan view of a state where a conventional straw is used.

FIG. 13 is a schematic explanatory diagram of a usage state using a conventional straw.

[Explanation of symbols]

 30 ... Straw 32 ... Upper part 34 ... Lower part 36 ... Reduced part 38 ... Small protrusion 40 ... Ridge part 42 ... Recessed groove part 102 ... Container 104 ... Beverage 106 ... Space 108 ... Opening part 109 ... Opening 112 ... Gap

Claims (7)

[Scope of utility model registration request] 1. A straw for a liquid-filled container, which is used by being pierced and inserted into an opening part of a container in which a liquid is sealed, wherein a part of the opening part in the usage state is in an area part inserted into the container. A straw for a liquid-enclosed container, characterized in that an enlarged diameter portion having an outer diameter larger than an outer diameter of a region located at is formed. 2. The straw for a liquid-filled container according to claim 1, wherein the expanded diameter portion is formed by a protrusion protruding outward from the outer peripheral surface. 3. The straw for a liquid-filled container according to claim 2, wherein the protrusion is composed of a plurality of small protrusions formed at predetermined intervals in the circumferential direction. 4. The straw for a liquid-filled container according to claim 2, wherein the protrusion is formed by a ridge extending in the longitudinal direction of the straw. 5. A straw for a liquid-filled container used by piercing and inserting into an opening of a container containing liquid, wherein an uneven portion is provided on a side surface of a region located in the opening in the use state. A straw for a liquid enclosure, which is characterized by being formed. 6. The liquid-filled container according to claim 5, wherein the uneven portion is formed by a plurality of protrusions provided on the outer peripheral surface of the straw at predetermined intervals and extending in the longitudinal direction of the straw. For straws. 7. The liquid-filled container according to claim 5, wherein the concave-convex portion is formed by a plurality of concave groove portions provided on the outer peripheral surface of the straw at predetermined intervals and extending in the longitudinal direction of the straw. For straws.