JP2003026210A - Nozzle for leading stuff to be packaged, fitting method thereof, and leading nozzle fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive nozzle for leading a stuff to be packaged with a simple structure. SOLUTION: A liquid 8 in a vessel is allowed to spout through an inner through hole 9 by piercing a tip part in a non-stretching film 7 to seal an opening 6 of a packaging vessel 4. A piercing tip part 10 is substantially conical and a tip 11 thereof is curved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to soy sauce and other seasonings, alcoholic beverages such as sake, wine and whiskey, edible oil, dressings and liquids which may contain various soft and hard particles or powders. Suitable for use in packaging containers such as relatively large soft packaging bags, hard bottles, cans, etc. for packaging liquids such as soups and honey, powdery or granular materials, simple structure, and mounting to container opening The present invention relates to an object-to-be-packaged delivery nozzle capable of providing sufficient airtightness and a nozzle holding force, a mounting method thereof, and a delivery nozzle connecting structure.

[0002]

2. Description of the Related Art For example, from a packaging container such as a flexible packaging bag having a hard opening made of a plastic molded article,
When pouring out liquid or other objects to be packaged multiple times, in most cases, a male thread formed on the outer peripheral side of the opening has a pouring pump, a check valve, etc. Is fixed by screwing, which can provide excellent air tightness, liquid tightness, and nozzle holding force.

[0003]

However, in such a conventional technique, it is necessary to prepare a female screw member which is separate from the lead-out nozzle, and the female screw member is engaged with the lead-out nozzle in a retaining engagement. In addition, it is necessary to sufficiently peel off the hermetic seal generally provided in the opening of the container before screwing the female screw member in attaching the outlet nozzle to the container opening. There was a problem that it was necessary.

Therefore, the present invention has a simple structure and is inexpensive, and can be easily attached to the opening of a packaging container. In addition to the required air-tightness and liquid-tightness, a sufficient nozzle holding force is provided. Provided is a packaged object delivery nozzle, a method for mounting the same, and a delivery nozzle mounting structure.

[0005]

SUMMARY OF THE INVENTION A packaged article discharge nozzle according to the present invention has a tip end pierced by an unstretched film that seals the opening of an opening made of, for example, a plastic molded product of a packaging container, and penetrates inside. The hole is used to guide the pouring of the object to be packaged, and the piercing tip has a substantially conical shape, preferably a substantially conical shape, and the tip has a curved shape.

[0006] According to this, a substantially conical pyramidal lead-out nozzle tip portion is inserted into the non-stretched film that seals the opening, and thereby a sufficiently large elastic elongation is generated in the non-stretched film. In this state, the lead-out nozzle can be penetrated into it, whereby the lead-out nozzle after the penetration can be clamped and held with a sufficiently large force over the entire circumference thereof based on the elastic contraction force of the unstretched film. .

Therefore, here, it is possible to guide the pouring of the object to be packaged with an inexpensive nozzle having a simple structure which does not require a screwing means or the like. In this case, based on the elastic shrinkage force of the unstretched film, With excellent air-tightness and liquid-tightness,
A large nozzle holding force can be provided.

The tip of the nozzle is formed in a pyramid shape in order to ensure a sufficient tightening force by making it sufficiently uniform over the entire circumference of the nozzle. The tightening force of the peripheral surface portion corresponding to the portion that first penetrates the unstretched film is smaller than that of the other portions. In addition, the nozzle tip has a curved surface in order to cause sufficient stretching deformation in the unstretched film.If the tip is sharply pointed, the nozzle tip immediately penetrates the unstretched film. Since the non-stretched film is hardly stretched and deformed, the nozzle peripheral surface can only obtain a tightening force corresponding to the diameter difference of the conical portion, and there is a fear that the nozzle tightening force is insufficient.

In such a nozzle, it is preferable that the internal through hole is opened on the conical surface. According to this, the size of the curved surface of the nozzle tip, the film configuration of the unstretched film,
The stretching amount of the non-stretched film when the nozzle penetrates can be selected as desired depending on the properties and the like. On the other hand, in general, when an internal through hole having an inner diameter of about 1 to 5 mm is opened at the nozzle tip, the size of the tip curved surface, for example, the radius of curvature inevitably increases, and the penetration into the non-stretched film occurs. Therefore, there is a high possibility that it will be plastically deformed, which makes it difficult to obtain a sufficient elastic contraction force of the unstretched film.

By the way, it is preferable that the outer diameter of the nozzle is not less than ¼ of the opening dimension and not more than the opening dimension in order to effectively utilize the elastic shrinkage force of the unstretched film. That is, if the opening size is less than 1/4, there is a feeling that a sufficiently large elastic contraction force cannot be secured.

Further, according to the present invention, there is provided a method for mounting an object to be packaged nozzle, which comprises a non-stretched film which seals an opening of a packaging container, and which uses an internal through hole to guide the object to be packaged. Upon inserting the conical tip portion, the lead-out nozzle is inserted into the position of the mark provided on the non-stretched film at a position corresponding to the center of the opening. According to this
It is easy to insert the guide nozzle into the center of the opening, and as a result, the tightening force over the entire circumference of the guide nozzle can be made sufficiently uniform.

When the lead-out nozzle is pierced by using the conical recess as a mark, it is possible to more accurately pierce the mark position as compared with the case of piercing the mark position by printing or the like, and no stretching is performed. Further uniformity of the nozzle tightening force by the film can be realized.

Further, in the lead-out nozzle mounting structure according to the present invention, the object-to-be-packaged lead-out nozzle having an internal through hole, which is inserted into a non-stretched film that seals the opening of the packaging container, is surrounded by the non-stretched film. It is tightened and fixed almost uniformly over the entire length. According to this, the desired air-tightness, liquid-tightness, and nozzle holding force can be effectively realized in the piercing connection portion of the outlet nozzle.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an essential part showing an embodiment of a packaged object discharge nozzle according to the present invention, together with a check valve integrally formed with the discharge nozzle and a packaging container to which the check valve can be applied.

In the figure, 1 is a discharge nozzle of the object to be packaged, 2 is a check valve integrally formed on the discharge nozzle 1, and 3 is an integral part of the check valve 2. The pouring nozzle formed in FIG. Also, 4 indicates a packaging container,
The packaging container can be a flexible packaging bag, a plastic bottle, a can, or the like. This packaging container 4 has an opening 5 made of, for example, plastic attached to the upper part thereof by heat fusion or the like, and the upper end opening 6 of this opening 5 is
It is sealed with an unstretched film having a single-layer or laminated structure. In the figure, reference numeral 8 denotes an object to be packed, which is filled and packed in the container 4, for example, a liquid.

Here, the lead-out nozzle 1 is provided with an internal through hole 9 for guiding the pouring of the liquid 8, and for inserting the lead-out nozzle 1 into the non-stretched film 7, a substantially conical shape, preferably a cone shape. A piercing tip 10 in the shape of
11 is a spherical surface or other curved surface shape.

In such a lead-out nozzle 1, it is preferable to open the internal through hole 9 in the conical surface so as to increase the degree of freedom in selecting the curved surface of the nozzle tip 11, and preferably, the outer diameter dimension d of the nozzle. Is 1/4 or more of the opening dimension D, the opening dimension
D or less.

The check valve 2 here is shown in FIG.
As shown in the enlarged cross-sectional view in FIG.
In the space 17 defined by the lower member 13 forming the inlet port 12 communicating with the upper member 16 forming the outlet port 15 communicating with the pouring passage 14 of the pouring nozzle 3. A circular diaphragm 18 made of rubber, elastomer, or the like having excellent flexibility is provided, and at a position adjacent to the outlet port 15 of the upper member 16, it projects downward and abuts the diaphragm 18, and the diaphragm 18 A plurality of ribs 19 for contacting the peripheral portion of the lower member 13 around the inlet port 12 are provided at intervals in the circumferential direction as shown in the bottom surface of the upper member 16 in FIG. Rib 19
A plurality of radial grooves 20 communicating with the outlet port 15 from the outside in the radial direction from the outer edge of the diaphragm 18 are defined therebetween.

When the pressures acting on the inlet port 12 and the outlet port 15 are equal pressures, the diaphragm 18 of the check valve 2 having the above-described structure has ribs as shown in FIG. 2 (a). By virtue of the inherent physical properties of the diaphragm 18 that abuts 19, the normally closed position of contacting the lower member 13 around the inlet port 12 around its entire periphery is maintained in the check valve 2. It fully functions as it should and functions to prevent outside air and other flow from the outlet port side to the inlet port side.

Further, when the pressure or force acting on the outlet port side becomes larger than that on the inlet port side, the diaphragm 18 has an inlet under the general deformation thereof as shown in FIG. In this state, the outlet nozzle 1 is pierced into the non-stretched film 7 that seals the container opening 6, because the outlet 12 side is closer to the outlet port than the diaphragm 18 under the application of the outlet nozzle 1. The diaphragm 18 completely blocks the return flow of the liquid once flowing out to the packaging container 4 and the entry of outside air into the container 4.

On the other hand, when the pressure or force acting on the diaphragm 18 from the inlet port side exceeds that on the outlet port side due to the tilting operation of the packaging container 4 or the like, the diaphragm 18 is shown in FIG. As described above, since the rib 19 contacts the entire circumference of the rib 19 to completely open the inlet port 12, the liquid flowing from the inlet port 12 into the space 17 is
From the periphery of the diaphragm 18, it can flow into the outlet port 15 via the radial groove 20, and from there, it can flow out via the bend passage 14 of the bend discharge nozzle 3 to the outside.

By the way, as shown in FIG. 5 (a), the guide nozzle 1 provided with the check valve 2 as described above is attached to the container opening 5 by a non-stretched film 7 for sealing the opening 6. On the other hand, preferably, the unstretched film 7 is pushed by pushing the piercing tip 10 of the outlet nozzle 1 into a position of a mark formed on the opening 6 at a position corresponding to the central portion of the opening 6, thereby reducing the physical properties unique to the unstretched film 7. Then, as shown in FIG. 5 (b), the unstretched film 7 is stretched to a large extent, and the unstretched film 7 is further pushed.
As shown in (c), preferably, at the time of this rupture, the entire tip opening 9a of the internal through hole 9 is positioned below the ruptured film as shown.

According to this, the lead-out nozzle 1 can be accurately pierced into the central portion of the opening 6, and this means that the unstretched film 7 can be marked with a conical plastic shape corresponding to the piercing tip 10. It is particularly effective when the deformed depression is provided.

Further, when the unstretched film 7 is broken, the entire tip opening 9a is formed as shown in FIG. 5 (c).
In the case of advancing to the lower side, as illustrated in FIG. 5 (d), when the unstretched film 7 is broken, a part of the tip opening 9a is located on the upper side of the broken film, the opening 6 It is possible to sufficiently eliminate the risk of outside air entering the inside.

After that, as shown in FIG. 5 (e), the derivation nozzle 1 is pushed sufficiently into the opening 5 so that the derivation nozzle 1 is directed in a direction to reduce the breaking hole diameter of the unstretched film 7. Based on the elastic restoring force of the, while holding with a sufficiently large tightening force that is almost even over the entire circumference, between the outlet nozzle 1 and the non-stretched film 7, ensuring excellent air-tightness and liquid-tightness, It is possible to reliably prevent the entry of outside air, which may contain microorganisms, into the opening, the leakage of the liquid 8 in the container 4, and the like from between the outlet nozzle 1 and the broken unstretched film.

FIG. 6 shows a case where the flexible packaging bag is used as a packaging container, and the outlet nozzle 5 provided with the check valve 2 is attached to the opening 5 of the container 4 as described above.
FIG. 4 is a cross-sectional view of a main part showing a pouring posture of the internal liquid 8 in which the container 4 is tilted.
2 is seated, and the opening 5 thereof is preferably elastically clamped by a fork claw 23 bifurcating.
The band 24 holds the middle portion of the container 4. According to such tilting posture of the container 4, the check valve 2
Under the action of the pressure of the liquid 8 on the diaphragm 18, the liquid 8 can be operated as described with reference to FIG.

By the way, in the case where the outlet nozzle 1 is applied in this way, the outlet nozzle 1 is clamped by the unstretched film 7 with a large force, so that even if the outlet nozzle 1 is moved in the radial direction of the opening 5. Even if there is relative displacement, the nozzle holding force of the unstretched film 7 hardly changes, and the airtightness and the liquidtightness are sufficiently maintained. Even if there is such relative displacement in the nozzle 1 due to the tilting posture beyond that, it is possible to realize reliable maintenance of airtightness and liquid tightness together with sufficient prevention of displacement of the nozzle 1 etc. .

[0028]

As described above, according to the present invention, an inexpensive outflow nozzle having a simple structure can be provided, and proper and easy mounting of the outflow nozzle to the container opening can be surely realized. The outlet nozzle can be fastened and fixed with a large force while ensuring excellent airtightness and liquid-tightness.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of a packaged article leading nozzle.

FIG. 2 is a diagram showing a check valve.

FIG. 3 is a cross-sectional view showing a completely closed state of the inlet port.

FIG. 4 is a sectional view showing a completely opened state of the inlet port.

FIG. 5 is a view showing a mounting process of the packaged article leading nozzle.

FIG. 6 is a main-portion cross-sectional view illustrating an applied state of a packaged article discharge nozzle.

[Explanation of symbols]

1 Nozzle for deriving items to be packaged 2 Check valve 3 Pouring nozzle 4 packaging 5 openings 6 openings 7 Non-stretched film 8 liquid 9 Internal through hole 9a Tip opening 10 Insertion tip 11 tip

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E014 PA01 PA02 PB03 PC03 PD30                       PE24                 3E084 AA02 AA04 AA12 AA24 AB01                       AB07 BA01 CA01 CB02 CC03                       DA01 DB12 DC03 FA09 FD13                       GA08 GB30 KA04 LA30 LB02                       LB07 LC01 LD01 LD03 LD12

Claims (6)

[Claims] 1. An object-to-be-packaged discharge nozzle which inserts a tip portion into an unstretched film that seals the opening of a packaging container and guides the pouring out of the article to be packaged through an internal through-hole, wherein the tip portion to be penetrated is almost the same. A nozzle for deriving an object to be packaged, which has a conical shape and its tip has a curved shape. 2. The packaged article outlet nozzle according to claim 1, wherein the internal through hole is opened on the conical surface. 3. The packaged article outlet nozzle according to claim 1, wherein the outer diameter dimension is not less than 1/4 of the opening dimension and not more than the opening dimension. 4. A non-stretched film for sealing an opening of a packaging container is provided with a central portion of the opening for inserting a conical tip portion of an article delivery nozzle for guiding the pouring of the article by an internal through hole. A method for mounting a delivery nozzle for an object to be packaged in which the delivery nozzle is inserted at a position of a mark provided on the unstretched film at a corresponding position. 5. The method for mounting a packaged article delivery nozzle according to claim 4, wherein the delivery nozzle is inserted with the conical depression as a mark. 6. A lead-out nozzle for piercing an unstretched film that seals an opening of a packaging container and having a through-hole for guiding the object to be packaged, which has an internal through hole, substantially evenly around the entire circumference thereof. Mounting structure.