JPH0719331Y2 - Leakproof straw and liquid beverage storage case - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a case in which a liquid beverage such as boxed milk or boxed juice is stored, and when the straw is inserted into the straw insertion hole, the internal liquid leaks. The present invention relates to a straw and a liquid beverage storage case that can prevent the above.

(Prior Art) Many so-called boxed milks and juices filled with liquid beverages such as milk and juice in boxes of various sizes are available in the market. A box filled with milk, etc., with a capacity corresponding to the number of beverages to be served is usually provided with a straw insertion hole on the upper surface in a closed state, and when trying to drink an internal beverage, the straw is inserted into the insertion hole. It is carried out by piercing and inserting into and drinking.

(Problems to be solved by the invention) However, in such a boxed liquid beverage, when drinking is interrupted and placed in an appropriate place, when it falls down, the liquid beverage inside flows out through the straw and pollutes the surrounding area. I often stain my clothes.

Of course, in consideration of such a situation, there is a straw provided with a bent portion to make it easier to drink, but even if it is temporarily escaped, it is still not essential to prevent outflow.

It is also possible to install a check valve inside the straw.
-79380, but no consideration is given to its use in food.

It is common for the present invention to provide a straw and a liquid beverage storage case that can cope with the above situation and prevent the outflow of the liquid beverage inside even when the storage case is laid down with the straw inserted. It is an object of the present invention to solve the problem by using an elastic valve body made of silicone which is harmless to food hygiene.

(Means for Solving the Problems) That is, one of the present inventions which meet the above-mentioned object is to use a silicone elastic valve body for a straw, and presses the upper side wall surface of the truncated right circular cone from both sides to flatten it. With a transformed shape,
It is characterized in that a silicone elastic member having an elongated slit formed on the top surface thereof is used as a valve body to seal and store the top surface at an appropriate position in the straw with the top surface facing the suction side.

In addition, the present invention also utilizes the above valve body in a liquid beverage storage case, in which the frustoconical upper side wall surface is formed on both sides of the inner surface of the straw insertion hole of the case for storing liquid beverage such as milk and juice. More pressed, flattened shape,
It is characterized in that a silicone elastic member having an elongated slit formed on the top surface is used as a valve body, and the top surface is directed to the inside of the case, and is fixed by a flange portion at the bottom of the truncated right circular cone.

(Operation) When the straw or liquid beverage case as described above is used alone or in combination, since the silicone valve body has a flattened shape with the slit on the suction side, the straw suction is performed. When this happens, the inside of the straw on the suction side of the valve body is decompressed by the suction, and therefore an imbalance of pressure occurs above and below the valve body, and the slit on the flattened top surface of the valve body becomes open due to elasticity. You can drink.

Then, when drinking is interrupted and the case is placed on a desk or the like with the liquid drink in it, even if you accidentally lie down, the suction force does not act on the straw or straw insertion part, so the valve body The pressure on both sides of the sandwich is balanced, and the elasticity of the silicone valve element closes the slit to prevent the liquid beverage from flowing out of the case and prevent the surrounding area from being contaminated.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an example of a straw according to the present invention. In the drawing, a valve body (2) made of a silicone elastic member, which is a feature of the present invention, is provided inside the straw body (1) near the lower end of the case. It is stored in a sealed state with the top facing the suction side, upward in the figure.

The valve body (2) made of an elastic member made of silicone is slightly larger than the diameter of the straw body (1) as shown in detail in FIG. 2, usually has a diameter of 10 mm or less and a thin truncated head of 0.6 mm thickness. The right circular cone (2a) is used as a material, and the upper side wall surface is pressed from both sides to have a flattened shape. This flattened usually 0.2-0.4-thick top surface has an elongated slit (3). It is provided.

This valve body (2) can be easily made by forming the elongated slit by a blade means after molding the valve body (2) with the above-mentioned shape by a known synthetic resin molding means using a mold to an appropriate height, usually about 6 to 10 mm. You can

The silicone valve body (2) can be inserted into the straw body (1) by any means that is possible, and the insertion position is not particularly limited as long as it is inside the straw body (1). As shown, the portion near the insertion portion into the case is most advantageous.

At the time of insertion, since the diameter of the valve body is larger than the diameter of the straw, the valve body is elastically inserted in a sealed state.

FIG. 3 shows a case where the valve body made of the elastic member made of silicone as described above is fixed to the inner surface of the straw insertion hole on the side of the case (6) for containing the liquid beverage.

In this case, it is preferable that the valve body (4) is formed by forming the flange portion (4b) on the bottom of the truncated right circular cone body (4a), which makes it easy to fix it around the straw insertion hole. Of course, in this example of use, the top surface is located toward the inside of the case, and the elongated slit (5) is provided on the top surface. In addition, it is preferable for sealing that the top surface is smaller than the outer circumference of the straw.

As described above, according to the configurations of the above embodiments, when sucking through the straw, the slit is opened due to the pressure imbalance due to the pressure reduction on the suction side, and the liquid beverage filled in the case can be easily consumed. On the other hand, when not drinking, the slit is elastically closed by the balanced pressure in the straw even if it falls sideways, and the silicone valve body closes to block the liquid drink inside the case and the common problem is solved. Solve.

(Effect of the Invention) The present invention uses the valve body made of the elastic material made of silicone, which is provided with the slits as described above, and is stored in the straw.
Alternatively, the valve body is fixed inside the straw insertion hole of the liquid beverage filling case, and the upper side wall surface has a flattened shape and a slit is provided at the top thereof, so that the valve body works together with the elastic material made of silicone. When inserting a straw and drinking a liquid beverage, the pressure imbalance on both sides sandwiching the valve element due to suction makes the elastic opening open to facilitate the intake of the liquid beverage, and the straw insertion hole is used when drinking is interrupted. Even if the case is laid down in the state of being inserted in the case, suction is not made at that time, so the slits are elastically held in the closed state by the pressure balance on both sides of the valve body, and the liquid beverage from the inside of the case It has an effect of being extremely useful as a straw for a liquid drink in a case or a case without blocking the outflow of water and polluting the surrounding area.

In particular, since silicone is recognized as harmless for food hygiene, it does not cause any trouble in use, and the valve body can be easily manufactured by molding, and is thus suitable for practical use.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a straw according to the present invention, FIGS. 2 (a) and 2 (b) are a side sectional view and a front view of a silicone valve body used for the straw, and FIG. 3 is a silicone. FIG. 3 is a schematic cross-sectional view of a main part of a liquid beverage storage case according to the present invention in which a valve body is fixed to an inner surface of a straw insertion hole. (1) ... straw body, (2), (4) ... silicone elastic valve body, (3), (5), (9) ... slit,
(2a), (4a) ... frusto-conical body, (4b) ... collar (6) ... case.

Claims (2)

[Scope of utility model registration request] 1. A frustoconical right upper cone side wall surface is pressed from both sides to be flattened, and a silicone elastic member having a slender slit formed on the top surface thereof is used as a valve element at an appropriate position in the straw to provide the top surface. A leak-proof straw characterized in that it is sealed and stored toward the suction side. 2. A case for accommodating liquid beverages such as milk and juice is formed into a flat shape by pressing the upper side wall surface of the truncated right circular cone from both sides against the inner surface of the straw insertion hole, and has an elongated slit on its top surface. A leak-preventing liquid beverage storage case, characterized in that the formed silicone elastic member serves as a valve body with its top surface facing the inside of the case and is fixed by a flange portion at the bottom of the truncated right circular cone.