JPH0715501Y2 - Leak-proof suction straws - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a straw used for sucking a liquid such as a boxed milk, a boxed juice or the like in a paper pack container, and more specifically, when the straw is inserted into a straw insertion hole. , Easy to suck,
Moreover, the present invention relates to a straw structure capable of preventing the liquid of the contents from leaking even when the straw is laid down.

[0002]

2. Description of the Related Art Milk and juice containing liquid drinks such as milk and juice in various sizes are packed in so-called paper-packed containers. Aside from the ones, a paper-packed container of a volume suitable for one drink is filled with milk or the like, and a straw insertion hole is usually provided on the upper surface of the container in a closed state, and When trying to drink, it is often practiced to stick a straw into the insertion hole on the insertion side for drinking.

[0003]

[Problems to be Solved by the Invention] However, in such a liquid beverage in a container, if the user accidentally interrupts drinking and puts it in an appropriate place, if it falls down, the liquid inside will leak out through the straw and contaminate the surrounding area. However, it is often the case to stain clothes and the like. Of course, in consideration of this, there is a straw provided with a bent portion to make it easy to drink, but even if this can temporarily avoid the above contamination, it is essential to prevent liquid leakage and outflow. Has not reached. Moreover, in the case of the conventional straw, when it is drunk all at once, the inside of the straw is often in a vacuum state and the shape of the paper pack is crushed.

This invention copes with the above-mentioned situation, and in particular, by forming a screw-like packing having a predetermined structure on the intermediate wall of the straw main body, even if the paper pack container is laid down sideways with the straw inserted, An object of the present invention is to obtain a reusable straw that can surely prevent the liquid beverage from flowing out, is easy to drink, and does not deform the container.

[0005]

That is, this invention which meets the above-mentioned object is based on the fact that the intermediate wall of the straw body is formed into a screw-like packing. That is, a straw is inserted through a predetermined insertion hole in the upper surface of the paper pack container, and an air groove and a valve communicating in the axial direction are provided in the intermediate wall portion of the straw body, the tip of which comes into contact with the paper pack container insertion hole. The present invention is characterized by a configuration in which the screw-shaped packing portion has is formed. Claims 2 and below show specific modes in the implementation thereof, and a projecting packing for fitting the upper surface portion of the paper pack container with the uppermost screw portion of the threaded packing of the straw body is formed. Further, a cap with a screw is provided at the suction port of the straw, and the straw is made of a silicone tube as its material.

[0006]

The straw having the above-described structure has the function of a screw when the straw with screw-like packing is inserted into the paper pack container. That is, the straw can be easily inserted by rotating it while twisting it, and since the packing effect is exhibited after the insertion, there is no leakage of liquid. In addition, when installing a cap on the straw body, first, when the straw is inserted into the paper pack container, it prevents the content liquid from leaking through the straw, and when a silicone tube is used for the straw body, it has an appropriate elasticity. Since it is a body, its packing effect and valve opening / closing effect are remarkable, and the outflow of liquid beverage inside the container is completely blocked,
It does not pollute the surroundings at all. Furthermore, for silicone tubes, cold resistance, heat resistance, weather resistance, chemical resistance,
It is ideal as a straw because it is rich in elasticity and hygienic. Therefore, in order to immediately respond to the trend of resource saving in recent years, it is possible to wash and heat the used products and reuse them, which is suitable as a part of global environment protection measures from this point of view.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 (A) to 1 (D) are examples of a straw body 1 according to the present invention, in which (A) is a straw body 1.
Characteristically, a screw-like packing 2 is formed on the intermediate wall portion of (3), (B) is a product in which a projecting packing 3 is additionally formed, and (C) is a cap at the end of the suction port of the straw body 1. 4 is provided with a threaded packing 5 for fixing the cap 4 and a threaded packing 6 at the tip of the straw body 1 to which the cap 4 is fitted. Further, (d) is A straight conical valve body 7 is provided inside the tip portion.

These screw packings 2 in FIG.
As shown in FIG. 2, the forming position of the straw main body 1 is such that when the straw main body 1 is pierced and inserted from the upper surface screwed portion 8 of the paper pack container 9 and the tip end reaches the bottom of the paper pack container 9. At a position substantially corresponding to the length K from the upper surface screwed portion 8 to the bottom portion thereof, the thickness of the paper pack container 9 is sandwiched between them to be sealed by screw fitting. The screw part of the screw packing 2 is
The pitch is the thickness of the paper pack container 9 and starts from the concave portion, and the diameters of the concave and convex portions are almost the same as the diameter of the straw body 1 on average, but the end of the screw portion is slightly widened. . In particular, when the brim-shaped projecting packing 3 is provided, the lower surface of the projecting packing 3 is adhered and sealed to the upper surface of the paper pack container to exert a stronger packing effect.

By the way, as described above, when the conventional straw is sucked all at once, the paper pack container is deformed. Therefore, in this invention, means for preventing the above deformation is further provided. FIG. 3 and FIG. 4 to FIG. 6 which show enlarged main parts thereof are specific embodiments thereof. The threaded portion of the straw body 1, that is, a part of the threaded packing 2, has an air groove 10 and a valve 11 at a lower portion thereof. Is provided.

In these drawings, reference numeral 10 is an air groove, and a groove is provided in the lower portion of the air groove so as to divide the screw packing 2.
Since there is a valve 11 at its tip, when drinking with a straw, the inside of the container is in a vacuum state, the valve 11 moves in the opening direction, and the air enters from the air groove 10 in the direction shown by the arrow in FIG. Prevent.

On the other hand, when suction is stopped, the above valve 1
No. 1 was restored to a closed state (Fig. 5), and liquid leakage from the straw suction port hardly occurred. The size of the width of the air groove 10 is related to the size of the diameter of the straw body 1, but it is preferably 1/3 to 1/6 of the diameter of the straw body 1.

In this invention, the screw-like packing 2 is used to fully utilize the function of the leakproof straw.
And the air groove 10 and the valve 11 thereof are combined, a structure in which a projecting packing is added to the screw-like packing 2, a communicating air groove and the valve thereof, instead of or in addition thereto, a straight conical valve body 7 Various modes are conceivable, such as a structure in which the inside of the straw is disposed, and further, a structure in which a cap 4 with a screw-like packing is formed at the suction end portion of the straw body 1, but these are appropriately selected according to their functions and actions. can do.

[0014]

As described above, according to the present invention, since the straw-like packing including the protruding packing is provided and the communicating air groove and the valve thereof are formed, the straw is screwed into the paper pack container. When sucking in the liquid by inserting it tightly, the suction is smooth, and even if the straw may roll over in the state that it is inserted in the paper pack container, the straw will be packed by the packing effect of both the screw packing and the protruding packing. The liquid does not leak from between the upper surface of the paper pack container and the paper pack container, preventing liquid leakage, there is no risk of contaminating the surroundings, and even if it is sucked all at once by the valve action of the communicating air groove. It is possible to maintain the good appearance by eliminating the deformation such as the collapse of the shape of the paper pack container.

When a cap with a threaded packing is used, or when a straight conical valve element is used inside the end of the straw, as a matter of course, liquid leakage from the straw suction port is completely prevented, and Leak prevention is more reliable. Further, when the straw body is made of a silicone tube, it can be heat-treated and reused even after use, and it can be said that it is a resource-saving and environmentally-friendly straw.

[Brief description of drawings]

FIG. 1 is a schematic view of the appearance of a straw according to the present invention,
(A), (b), (c), and (d) show each aspect related to the modified implementation.

FIG. 2 is a schematic perspective view of a straw according to the present invention inserted into a paper pack container.

FIG. 3 is a schematic side sectional view showing the action of the projecting packing when the straw according to the present invention is inserted into a paper pack container.

FIG. 4 is an enlarged cross-sectional view of part A of FIG.

5 is a partially enlarged view showing the valve function of FIG. 4. FIG.

6 is a schematic cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 Straw main body 2 Screw-like packing 3 Protruding packing 4 Cap 5 Screw-like packing of cap part 6 Screw-like packing at the end of the mouth of the straw main body 7 Straight conical valve body 8 Threaded part on top of paper pack container 9 Paper pack container 10 Air groove 11 valve

Claims (5)

[Scope of utility model registration request] 1. A suction straw for liquid beverage, wherein when the straw is inserted through a predetermined insertion hole in the upper surface of a paper pack container containing the liquid beverage and the tip of the straw almost reaches the bottom of the case, the paper A leak-proof suction straw, characterized in that a thread-like packing having an air groove and a valve communicating with each other in the axial direction is formed on an intermediate wall portion of the straw body that abuts the pack container insertion hole. 2. The leak-proof suction straw according to claim 1, wherein the uppermost screw portion of the threaded packing of the straw forms a projecting packing that fits on the upper surface of the paper pack container. 3. A straight conical valve body is formed inside the tip of the straw.
A leak-proof suction straw as described. 4. The leakproof suction straw according to claim 1, wherein a cap with a threaded packing is provided at the suction port of the straw. 5. The leak-proof suction straw according to claim 1, 2, 3 or 4, wherein the straw body is formed of a silicone tube.