Beverage container

The beverage container addresses the issue of inconsistent air pressure in baby bottles by using a flexible mouthpiece with a ventilation section that can be blocked for controlled pouring, ensuring equal air pressure and promoting self-sucking behavior in infants.

JP2026011486APending Publication Date: 2026-01-23LEC INC
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Patent Information

Application Number
JP2024112149
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing baby bottles with air holes on the nipple flange cannot effectively dispense a small amount of beverage when the flexible nipple body is pressed, as the air hole is difficult to close, leading to inconsistent air pressure and difficulty in pouring.

Method used

A beverage container with a flexible mouthpiece portion featuring a ventilation section that is normally open to equalize air pressure and can be blocked by a finger to compress air, allowing easy pouring through a mouthpiece hole.

Benefits of technology

The container maintains equal air pressure with the outside and allows controlled dispensing of beverage by blocking the ventilation section with a finger, facilitating easy pouring and encouraging self-sucking behavior in infants.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a beverage container capable of opening and closing a ventilation part as necessary and easily pouring out a beverage.SOLUTION: The beverage container includes a cup part 1 having an opening at the upper end, a mouthpiece part 2 for closing the opening via an engaging part, and a straw part 3 which can be attached to the inside of the mouthpiece part 2. A pressing part side 2b is arranged on a slope part side 2c on the back side of a top part side 2f of an inclined suction port part 2, and when a curved recessed part side 2f of the pressing part side 2g is pressed by a finger, a ventilation part side 2f provided on the pressing part side 2h is closed by the finger. The entire 2h of the pressing portion is deformed by pressing in a state where the 2f of the ventilation portion is closed, and the air in the mouthpiece portion 2 is compressed by being recessed inward. The compressed air pushes down the liquid surface of the beverage, so that a small amount of beverage is poured out from the 2a of the mouthpiece hole through the straw portion 3.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to a drinking container for use by young children. [Background technology]

[0002] Patent Document 1 discloses a baby bottle with an air hole located on the side of the nipple flange. When this baby bottle is filled with milk and an infant is fed, the pressure inside the bottle is reduced as the infant drinks the milk, and air flows into the bottle through the air hole. By allowing air to flow into the bottle, the pressure inside the bottle becomes the same as the outside air pressure, allowing the infant to continue drinking milk.

[0003] By providing an air hole in the baby bottle in this way, the air pressure inside the bottle is the same as the outside air pressure regardless of the amount of drink remaining, so there is no problem with the baby sucking.

[0004] In addition, to encourage babies to suck the beverage in the bottle, a small amount of beverage is first dispensed from the nipple of the bottle, so that the baby starts to suck on its own. In this way, when dispensing a small amount of beverage from the nipple, pressurizing the air inside the bottle pressurizes the liquid surface, making it possible to forcibly dispense a small amount of beverage from the nipple of the bottle. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 6-304231 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the flexible nipple body of the baby bottle of Patent Document 1 is pressed with a finger or the like, it is impossible to compress the air inside the bottle because the air hole is located in a position that is difficult to close due to the structure. Therefore, the baby bottle of Patent Document 1 cannot dispense the above-mentioned small amount of beverage from the nipple of the baby bottle.

[0007] The object of the present invention is to solve the above-mentioned problems and to provide a beverage container that can make the air pressure inside the container equal to the outside air pressure through an air hole that is normally open, and that can close the air hole as needed, allowing the beverage inside the container to be easily poured out through the mouthpiece hole. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the beverage container of the present invention comprises a cup portion with a bottom and an opening at the top, a mouthpiece portion that closes the opening and is made of a flexible synthetic resin material, and a straw portion that can be attached to the mouthpiece portion, wherein the mouthpiece portion is composed of a top portion with a mouthpiece hole at the tip, a sloped portion that is continuous with the bottom of the top and has an inverted bowl shape, and a tubular portion that is inside the sloped portion and communicates with the mouthpiece hole and fits over the upper end of the straw portion, and the sloped portion is formed with a pressing portion made of a wall portion that is thicker than the surrounding wall portion, and the pressing portion is provided with a ventilation portion that penetrates the wall portion. [Effects of the Invention]

[0009] Thus, with the beverage container of the present invention, the ventilation section provided in the mouthpiece section is normally left open to make the air pressure inside the container the same as the outside air pressure, and if necessary, the ventilation section can be blocked with a finger, and the flexible mouthpiece section can be pressed with the finger blocking the ventilation section, making it possible to easily pour the beverage inside the container out of the mouthpiece hole. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is an exploded perspective view of the beverage container. [Figure 2]1 is a perspective view of a beverage container as viewed from the front. FIG. [Figure 3] FIG. 2 is a perspective view of the beverage container as viewed from the rear. [Figure 4] 2 is a cross-sectional view of the beverage container taken along line AA'. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] The present invention will be described in detail below based on the illustrated embodiments.

[0012] Fig. 1 is an exploded perspective view of the beverage container, Fig. 2 is a perspective view of the beverage container as seen from the front, Fig. 3 is a perspective view of the beverage container as seen from the rear, and Fig. 4 is a cross-sectional view of the beverage container taken along line A-A' in Fig. 2.

[0013] The beverage container comprises a cup part 1 with an opening at the top, a mouthpiece part 2 that closes the opening via an engaging part, and a straw part 3 that can be attached to the inside of the mouthpiece part 2.

[0014] The cup portion 1 is molded from a hard, heat-resistant material such as glass or plastic, and is preferably made of a transparent or translucent material so that the beverage inside can be seen. A scale may also be provided on the outside surface so that the volume of the beverage can be seen.

[0015] A cylindrical opening 1a is provided at the top end of the bottomed cup portion 1, and an external thread portion 1b is formed on the outer wall of this opening 1a.

[0016] The mouthpiece portion 2 is molded from a flexible synthetic resin material or the like, and is composed of a top portion 2b with a mouthpiece hole 2a at the tip, an inverted, bowl-shaped sloped portion 2c that continues below the top portion 2b, an annular flange portion 2d that continues from the lower end of the sloped portion 2c, and a tubular portion 2e that is inside the sloped portion 2c, communicates with the mouthpiece hole 2a, and fits into the upper end portion 3a of the straw portion 3.

[0017] The sloped surface 2c is provided with a pressing portion 2f, and the pressing portion 2f is provided with a curved recess 2g that is recessed in a bowl shape to make it easier to press with a finger. Furthermore, a ventilation portion 2h that penetrates the wall of the pressing portion 2f is provided at the bottom of the curved recess 2g.

[0018] The ventilation portion 2h may have any suitable shape such as a circular hole or a cross-shaped notch, and may be disposed at any suitable position within the curved recess 2g as long as it can be pressed with a finger.

[0019] As shown in FIG. 4, the thickness of the wall of the pressing portion 2f is thicker than the thickness of the wall 2i surrounding the pressing portion 2f, and a ring-shaped groove 2j is formed between the lower end of the inclined surface 2c and the flange portion 2d.

[0020] The straw portion 3 is cylindrical, and the upper end portion 3a is inserted into the inner wall of the tubular portion 2e of the mouthpiece portion 2, and when the beverage container is assembled, the lower end portion 3b of the straw portion 3 is long enough to reach near the bottom 1c of the cup portion 1.

[0021] The top 2b is a cylindrical body with a closed tip, and a mouthpiece hole 2a is drilled in the closed surface at the tip of this cylindrical body. The axial direction of this mouthpiece hole 2a is slightly inclined in a predetermined direction, i.e., direction B shown in Figure 4, starting from the center of the mouthpiece part 2; similarly, the straw part 3 is also inclined in direction B, starting from the center of the mouthpiece part 2.

[0022] A pressing portion 2f is disposed on the sloped portion 2c on the back side of the inclined top portion 2b. Note that the top portion 2b does not necessarily need to be inclined, and in such a case, the pressing portion 2f is disposed at an appropriate position on part of the outer surface of the sloped portion 2c.

[0023] The mouthpiece 2 can be attached to an annular engaging part 4 that can engage with the opening 1a of the cup part 1. This engaging part 4 is molded from a hard synthetic resin or the like, and is composed of a circular hole 4a at its upper end that engages with the groove 2j between the slope 2c and flange 2d of the mouthpiece 2, a cylindrical body 4b that surrounds this circular hole 4a, and an internal thread 4c that is engraved on the inside surface of the body 4b and screws into the external thread 1b of the opening 1a of the cup part 1.

[0024] When assembling the beverage container, first the mouthpiece 2 is attached to the engagement part 4. The flexible flange 2d of the mouthpiece 2 is deformed while being inserted into the circular hole 4a of the engagement part 4, and the groove 2j of the mouthpiece 2 is engaged with the edge of the circular hole 4a. The mouthpiece 2 and engagement part 4, which are integrated in this way, will not separate unless the flange 2d of the mouthpiece 2 is significantly deformed.

[0025] Furthermore, the upper end 3a of the straw part 3 is fitted into the inner wall of the tubular part 2e of the mouthpiece part 2, thereby integrating the mouthpiece part 2, straw part 3, and engaging part 4. Next, the inner thread part of the engaging part 4 is screwed onto the outer thread part 1b of the cup part 1 containing powdered milk, hot water, juice, or other beverage, completing the assembly of the beverage container.

[0026] After use, the beverage container is disassembled in the reverse order of the assembly procedure described above, and each part is washed, boiled to disinfect, etc., and then dried and stored.

[0027] When an infant puts his / her mouth to the mouth hole 2a of the mouthpiece part 2 to suck on a beverage container containing a beverage, the mouth hole 2a is positioned so that the infant's face faces the end of the B direction shown in Figure 4.

[0028] When a child holds cup portion 1 with both hands and sucks on the beverage, the water level in the beverage drops, and as the water level drops, outside air flows into cup portion 1 through ventilation portion 2h. As outside air flows in, the air pressure inside the beverage container becomes the same as the outside air pressure, and there is no problem with the child sucking on the beverage.

[0029] Next, to encourage the infant to suck, that is, to have the parent pour out a small amount of beverage that will trigger the infant to suck, the curved recess 2g of the pressing portion 2f is pressed with a finger.

[0030] When the curved recess 2g is pressed with a finger, the finger closes the ventilation section 2h provided in the pressing section 2f. Pressing with the ventilation section 2h closed causes the entire pressing section 2f to deform and become recessed inward, compressing the air inside the mouthpiece section 2. This compressed air pushes down the liquid level of the beverage, causing a small amount of beverage to be dispensed from the mouthpiece hole 2a via the straw section 3.

[0031] As described above, the wall thickness of the pressing portion 2f is thicker than the wall thickness of the surrounding wall 2i of the pressing portion 2f, so when the pressing portion 2f is pressed with a finger, the hard pressing portion 2f due to its thickness is lightly pressed with the finger, and the surrounding wall 2i, which is easily deformed, is significantly deformed. In this way, the area around the pressing portion 2f of the mouthpiece 2 is easily recessed inward, so the air inside the beverage container is easily compressed, and as a result, the beverage is easily poured.

[0032] In order to obtain the effect of making such a mouthpiece portion 2 more likely to concave inward, instead of increasing the thickness of the wall portion of the pressing portion 2f, the pressing portion 2f may be made of a hard material by two-color molding or the like.

[0033] Furthermore, when an infant places their mouth on the mouthpiece hole 2a, their face is positioned in the direction of the inclination of the mouthpiece hole 2a. Because the pressing portion 2f is located on the slope 2c on the back side of the inclined top 2b, it is possible to easily press the curved recess 2g of the pressing portion 2f with a finger without being obstructed by the infant's face.

[0034] In this way, a small amount of beverage is dispensed from the mouthpiece hole 2a, and the child begins to suck the beverage by himself / herself. By starting to suck by himself / herself, the child continues to suck the beverage.

[0035] Furthermore, unlike a baby bottle, the beverage container is sucked through the straw portion 3, so it can also be used to practice drinking through the straw portion 3 for young children who have never used a straw portion 3.

[0036] In this way, with the beverage container of the present invention, the ventilation section 2h provided in the mouthpiece section 2 is normally left open to make the air pressure inside the container the same as the outside air pressure, and if necessary, the ventilation section 2h can be blocked with a finger, and the flexible mouthpiece section 2 can be pressed with the finger blocking the ventilation section 2h, thereby easily dispensing the beverage inside the container from the mouthpiece hole 2a. [Explanation of symbols]

[0037] 1 Cup part 1a opening 1b External thread 2 Mouthpiece 2a Mouthpiece hole 2b Top 2c Slope 2e Cylinder part 2f Pressing part 2g curved recess 2h Ventilation section 2i wall 3 Straw part 3a Upper end 4 Engagement part 4c Internal thread

Claims

1. A beverage container having a cup portion with a bottom and an opening at the top end, a mouthpiece portion that closes the opening and is made of a flexible synthetic resin material, and a straw portion that can be attached to the mouthpiece portion, The mouthpiece portion is composed of a top portion having a mouthpiece hole at the tip, a sloped portion that is continuous with the bottom of the top portion and has an inverted bowl shape, and a tubular portion that is inside the sloped portion and communicates with the mouthpiece hole and fits onto the upper end of the straw portion; A beverage container characterized in that the inclined portion has a pressing portion formed of a wall portion having a thickness thicker than that of the surrounding wall portion, and the pressing portion has a ventilation portion that penetrates the wall portion.

2. 2. The beverage container according to claim 1, wherein the opening direction of the mouthpiece hole is inclined in a predetermined direction, and the pressing portion is disposed on the inclined portion on the back side of the inclined top portion.

3. 3. The beverage container according to claim 1, wherein the pressing portion has an outer surface provided with a curved recess for a finger, and the ventilation portion is disposed in the curved recess.

4. 3. A beverage container according to claim 1 or 2, wherein the top portion is a cylindrical body with a closed tip, and the mouthpiece hole is disposed on the closed surface of the cylindrical body.

5. 3. The beverage container according to claim 1, wherein the mouthpiece is attachable to an annular engaging portion that engages with the opening, and closes the opening via the engaging portion.

6. The beverage container according to claim 5, characterized in that an internal thread portion is provided on the inner surface of the engagement portion, and an external thread portion is provided on the outer surface of the upper end of the cup portion, and the internal thread portion is screwed onto the external thread portion.

Citation Information

Patent Citations

  • Nipple for nursing bottle

    JP1994304231A