CN111278742A

CN111278742A - Structure of inverted outlet

Info

Publication number: CN111278742A
Application number: CN201880070622.8A
Authority: CN
Inventors: 川崎翔太; 长野学; 岩水敬太; 松永翔太
Original assignee: Mib Packaging Co ltd; Kewpie Corp
Current assignee: Mib Packaging Co ltd; Kewpie Corp
Priority date: 2017-09-02
Filing date: 2018-08-31
Publication date: 2020-06-12
Anticipated expiration: 2038-08-31
Also published as: WO2019045082A1; JP7201600B2; CN111278742B; JPWO2019045082A1

Abstract

The present invention relates to an improvement in a structure of a spout portion of a container in which a plurality of cylindrical nozzles are arranged at equal intervals. In the pouring outlet structure of a container formed by arranging a plurality of cylindrical nozzles (10, 20, 30) in a separated state, the axes of the cylindrical nozzles (10, 20, 30) are set to be approximately parallel, all the front end surfaces of the cylindrical nozzles (10, 20, 30) are set on an assumed inclined surface (P), the assumed inclined surface (P) is an inclined surface inclined at a predetermined angle relative to the axes of the cylindrical nozzles (10, 20, 30), and the lower side of the assumed inclined surface (P) is arranged to be the lower side of the pouring outlet part (1) when the container is inclined to pour out contents.

Description

Structure of inverted outlet

Technical Field

The present invention relates to an improvement in a structure of a pouring outlet portion of a container in which a plurality of tubular nozzles are arranged at equal intervals.

Background

As a structure of a spout portion having a plurality of nozzles, a structure is known in japanese patent application laid-open No. 2005-247375, for example, which includes a nozzle assembly including a plurality of nozzle units arranged on a top plate of a spout member so as to be spaced apart from each other, the plurality of nozzle units each having a nozzle unit center line inclined at an inclination angle θ with respect to a center line of the spout member, and the nozzle units being arranged such that discharge flows discharged from the plurality of nozzle units merge on an extension line of the nozzle unit center line other than the top plate and form a spout flow before the merged position.

In the above configuration, since the discharge flows of the nozzle assembly are formed so as to merge on the extension line of the center line of the nozzle unit, it is not assumed that the discharge flows from the respective nozzle units are separately discharged.

Also, the following structure is disclosed in japanese utility model registration No. 3189876: a bottle cap to be attached to the head of a mayonnaise container, the bottle cap comprising a cap body screwed to a screw portion provided on the container head, and a cap that can be opened and closed, wherein a projection is projected from the upper end of the cap body, the projection is formed with a plurality of holes through which mayonnaise flows, and the holes are arranged linearly in the projection.

In this way, although the area of the mayonnaise flowing out can be increased, the mayonnaise flows out at different pressures depending on the position of each hole, and the flowing-out area is enlarged, but the flowing-out amount is not uniform, and the remaining mayonnaise remains attached to the periphery of each hole after flowing out, and as a result, the bottle cap body and the cap are easily contaminated due to repeated use.

Patent document 1: japanese patent laid-open publication No. 2005-247375

Patent document 2: japanese Utility model registration No. 3189876

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a spout structure that can increase the outflow area of contents by providing a plurality of nozzles and can smoothly flow out.

Further, the present invention provides a spout structure that reduces contamination caused by adhesion of the content after pouring and improves the ease of wiping.

Means for solving the problems

In order to solve the above problems, the present invention according to claim 1,

in the structure of the pouring outlet part of the container formed by separately arranging a plurality of cylindrical nozzles,

the axis of the cylindrical nozzle is set substantially parallel to each other, and all the distal end surfaces of the cylindrical nozzle are set on an assumed inclined surface which is inclined at a predetermined angle with respect to the axis of the cylindrical nozzle.

The invention of the scheme 2 is characterized in that,

the lower side of the inclined surface is arranged to be the lower side of the pouring outlet portion when the container is inclined to pour out the contents.

The invention of the aspect 3 is characterized in that,

an upper cover is connected to the inverted outlet portion via a hinge portion to cover the inverted outlet portion,

the side of the tubular nozzle having the lowest height, on which the distal end surface of the tubular nozzle is disposed, is disposed on the opposite side to the hinge portion.

The invention of the aspect 4 is characterized in that,

the cylindrical nozzle is formed in a core portion which protrudes at the center of the pouring outlet portion of the container and has a flat top surface.

The invention of claim 5 is characterized in that,

the base of the cylindrical nozzle is provided at the peripheral edge of the core.

The invention of claim 6 is characterized in that,

the core is formed in a cylindrical shape.

The invention of claim 7 is characterized in that,

all the cylindrical nozzles are arranged so as to be offset to a surface below the assumed inclined surface on the upper surface of the core.

Preferably, the inner diameter of the cylindrical nozzles disposed below the assumed inclined surface of the plurality of cylindrical nozzles is set smaller than the inner diameter of the other cylindrical nozzles disposed above the assumed inclined surface.

Preferably, in the inner wall of the cylindrical nozzle, the inner wall on the side where the inclined surface of the tip end surface of the nozzle is higher is inclined so that the diameter thereof gradually increases with respect to the inner wall on the side where the inclined surface is lower.

Preferably, a base point inclined so as to expand in diameter on the side where the inclined surface of the tip end surface of the nozzle is higher is set at a position that coincides with a fitting position where the protrusion provided on the upper lid portion is fitted into the inner wall on the side where the inclined surface of the tip end surface of the nozzle is lower.

ADVANTAGEOUS EFFECTS OF INVENTION

In the pouring outlet structure of the container according to the present invention, when the container is horizontally placed or tilted to discharge the contents, the tip of the cylindrical nozzle is set on a supposed inclined surface which is the same inclined surface, so that the dropping of the contents can be reduced and the flow can be easily interrupted.

Further, by making the inner diameter of the tubular nozzle having a short nozzle length arranged on the lower side of the assumed inclined surface smaller than the inner diameter of the tubular nozzle having a long nozzle length arranged on the upper side, or by providing the inner peripheral surface with irregularities to increase the roughness, the difference in the line resistance of the nozzles can be eliminated, and the contents can be discharged in a substantially parallel linear manner.

Further, the wall of the inner wall of the cylindrical nozzle is gradually thinned to form a gap so that the diameter is expanded on the side where the inclined surface is higher, whereby the sealing force of the upper lid portion can be stabilized.

Drawings

Fig. 1(a) is a schematic view of the spout structure of example 1 as seen from above.

Fig. 1(b) is a side view of the spout structure of example 1.

Fig. 2 is a main part perspective view showing a hypothetical inclined surface.

Fig. 3 is an expanded view of the structure of the spout portion with the upper lid.

Fig. 4(a) is a schematic view of example 2 in a plan view after changing the arrangement of the cylindrical nozzles.

Fig. 4(b) is an explanatory view showing an area of the upper surface of the core portion on the side of the pouring direction which is the lower side of the assumed inclined surface by oblique lines.

Fig. 5 is a schematic view in plan view of embodiment 3 in another arrangement.

FIG. 6 is a schematic view in a plan view of example 4 after the core portion is reduced.

Fig. 7 is a side sectional view of the expanded state of the spout structure with the upper lid.

Fig. 8 is a side sectional view of the upper cover in a state closed.

Fig. 9 is an expanded view of the spout structure with the upper lid.

Fig. 10(a) is a sectional view before the protrusion is inserted into the cylindrical nozzle.

Fig. 10(b) is a sectional view when the protrusion is inserted into the cylindrical nozzle.

Fig. 11 is a cross-sectional view showing the engagement of the cylindrical nozzle at the tip of the core with the projection, and the engagement of the outer ring with the core.

Fig. 12 is a plan view of a spout structure provided with four (even number) cylindrical nozzles.

Description of the symbols

1-spout portion, 2-cap body, 3-core portion, 4-hinge portion, 5-upper cap, 6-outer ring, 10, 20, 30-cylindrical nozzle, 11, 21, 31-front end face, 12, 22, 23-inner wall face (higher side), 13, 23, 33-inner wall face (lower side), 15-gap, a1, a2, A3-axis of cylindrical nozzle, P-assumed inclined face.

Detailed Description

In the pouring outlet structure of the container formed by separately arranging a plurality of cylindrical nozzles, all the front end surfaces of the cylindrical nozzles are set on an assumed inclined surface inclined relative to the axis of the cylindrical nozzles at a predetermined angle, thereby reducing the entanglement of the contents and facilitating the flow breaking.

Example 1

In the present embodiment, the present invention is used for a spout structure of a container used by pouring and horizontally placing the container to discharge the contents.

The spout portion 1 of the present embodiment is formed on the upper surface of the lid main body 2 screwed or fitted to the mouth portion (not shown) of the container, and a separate bottle cap (not shown) may be fitted to the outside of the lid main body 2, or an upper lid may be connected to the lid main body 2 via a hinge portion.

The inverted outlet portion 1 may be formed in the cover main body 2, or may be formed in a core portion 3, and the core portion 3 may be raised in a substantially concentric cylindrical shape having a small diameter at the center of the cover main body 2.

Here, the core 3 is provided because the content in the container can be extruded uniformly to the cylindrical nozzle and poured stably by remaining the content in the core 3 for a while, and the content can be prevented from adhering to the cap body at the root of the cylindrical nozzle without making the cylindrical nozzle excessively long, and the core 3 is not limited to a cylindrical shape, and any cross-sectional shape such as a cube or a polygonal column can be used.

In fig. 1(a), 1(b) to 2, a configuration in which a plurality of

cylindrical nozzles

10, 20, 30, … … are arranged on the core 3 is described as an example, but a configuration in which a plurality of cylindrical nozzles are directly arranged on the cap body 2 instead of the core 3 may be employed.

Here, the core 3 has a plurality of cylindrical nozzles arranged at substantially equal intervals on a concentric circle based on the center of the core.

In the illustrated example, as an example of the plurality of cylindrical nozzles, three

cylindrical nozzles

10, 20, and 30 are provided, which are disposed upright such that their axes a1, a2, and A3 intersect the substantially horizontal upper surface of the core 3 at substantially right angles, and such that the axes a1 to A3 are parallel to each other (see fig. 2).

The distal end surfaces of all the

tubular nozzles

10, 20, and 30 are set in contact with an assumed inclined surface P that is inclined at a predetermined angle with respect to the axes a1, a2, and A3 (see fig. 2).

The inclined surface P is arranged such that the lower side of the inclined surface P is the lower side of the pouring outlet portion 1 when the container is inclined to pour out the contents.

Further, all the

tubular nozzles

10, 20, and 30 are disposed on the lower surface side of the upper surface of the core 3 than the substantially center C crossing the assumed inclined surface P at the same level.

Here, when the upper lid 5 described below is provided to be connected to the inverted outlet portion 1 via the hinge portion 4, the inclined surface P is disposed such that the side on which the inclined surface P descends is the opposite side to the side on which the inclined surface P faces and is separated from the hinge portion 4.

The

cylindrical nozzles

10, 20, and 30 are arranged on a concentric circle having the center of the core 3 as the center, at equal intervals.

The

tubular nozzles

10, 20, and 30 are arranged such that, in plan view, the intervals L1 in the downward direction of the inclined surface P are assumed to be the same, the intervals L2 in the direction intersecting at right angles thereto are assumed to be the same, and the intervals L3 between the axes of the adjacent tubular nozzles are assumed to be the same between the adjacent tubular nozzles (10 and 20, and 30).

For example, L1, L2, and L3 are 5.83mm, and if L1 is 3mm or less, they are too close to each other, and if L3 is 5mm or less, it is difficult to wipe dirt between nozzles.

As described above, all the distal end surfaces 11, 21, 31 of the

tubular nozzles

10, 20, 30 are set to be substantially parallel to the axis of the tubular nozzle, and all the distal end surfaces of the tubular nozzles are set to coincide with the assumed inclined surface P inclined at the predetermined angle θ with respect to the axes a1, a2, A3 of the tubular nozzles.

In the illustrated example, the tip end surfaces 11, 21, and 31 of the three cylindrical nozzles are set on inclined surfaces inclined at an angle of 15 to 20 degrees with respect to a horizontal plane, but the angle is not limited to this angle, and the optimum value can be appropriately selected according to the shape of the container and the cylindrical nozzles, the type of the contents, and the like.

This is because: when the tip of the cylindrical nozzle is different from each other in the horizontal plane or the inclined plane having the same angle, as described below, the content drops when flowing out, and it is difficult to cut off the flow.

The inclination angle θ may be determined to be an optimum angle for the fluidity of the contents and the separation length between the cylindrical nozzles.

For example, the angle can be set to an optimum angle experimentally, for example, when the fluidity of the content is high, the angle is further reduced, and when the fluidity is high, the angle is further increased.

This reduces the possibility of dripping of the contents discharged from the cylindrical nozzle by being caught by the tip of the nozzle, and allows easy flow breaking by using a tray or the like.

Example 2

When any of the cylindrical nozzles is provided upright in contact with the outer periphery of the core 3, the area of the upper surface of the core 3 that comes into contact with the content when the content flows out is reduced (for example, see the shaded portion in fig. 4 (b)), and the adhesion of the content that flows out to the upper surface of the core 3 can be reduced.

Accordingly, fig. 4(a) and 4(b) to 6 show examples in which all the tubular nozzles 10 to 30 are provided in contact with the outer peripheral edge of the core 3 in a protruding manner.

In fig. 4(a) and 4(b), the three tubular nozzles 10 to 30 are arranged on the core 3 so as to be offset below the assumed inclined surface P from the center of the core.

Here, L1 was 5mm, L2 was 2.4mm, L3 was 5.55mm, the interval between cylindrical nozzles was not narrow, and L3 also ensured the ease of wiping.

The distal end surfaces 11, 21, and 31 of the

tubular nozzles

10, 20, and 30 are all arranged on the same plane of the 15-degree inclined surface as in the above-described embodiment.

Here, the cylindrical nozzles 10 to 30 are more preferably arranged within ± 60 degrees from the center of the core 3.

Example 3

In fig. 5, two

cylindrical nozzles

10 and 30 at the left and right ends are erected at both ends of the diameter of the core 3 so as to contact the outer periphery of the core 3, and a central cylindrical nozzle 20 is erected at a position 90 degrees apart from the two

cylindrical nozzles

10 and 30 so as to contact the outer periphery of the core 3.

By enlarging the distance between the tubular nozzles 10 to 30 in this way, L1, L2, and L3 become 6.5mm, 6.4mm, and 9.12mm, respectively, and dirt between the nozzles can be easily wiped off, and a corresponding effect can be obtained, but the adhesion area becomes larger than that in fig. 4(a) and 4 (b).

Example 4

Fig. 6 is the same arrangement as fig. 5, with the core 3 having a small diameter.

Thus, although the core 3 is made compact by 5.4mm for L1, 5.3mm for L2, and 7.52mm for L3, the interval is not relatively narrowed, and dirt on the core 3 is easily wiped.

The other structure is the same as the above embodiment.

As described above, it is preferable to increase the distance L3 between the axial centers of the adjacent cylindrical nozzles, as to the ease of wiping dirt on the core 3.

On the other hand, by shortening the diameter of the core 3, the side surface of the core 3 is easily wiped.

Further, if the distance L1 between the tubular nozzles in the lower direction of the assumed inclined surface P is increased, the three effluents (not shown) may be dispersed by flowing out from each of the three tubular nozzles when the container is used, and conversely, if the distance is decreased, the effluents are overlapped and cannot flow out uniformly.

For example, when the content has fluidity like mayonnaise, the content becomes three lines, but when L1 is narrow, it becomes difficult to become three independent lines.

Further, the tubular nozzle 2 positioned at the lowermost side of the assumed inclined surface P among the

tubular nozzles

10, 20, and 30 is the shortest, so that the pipe resistance is reduced, and the flow rate is increased as compared with other

tubular nozzles

10 and 30 positioned at the upper side of the assumed inclined surface P, so that when the contents are linearly discharged from the two

nozzles

10 and 30, the contents are meanderly discharged from the nozzle 20 at the center, and not only the appearance but also the discharge amount are different.

Therefore, the

tubular nozzles

10, 20, and 30 are preferably made to be proportional to the length of the nozzle and the inner diameter of the nozzle according to the properties of the contents.

In the above embodiment, the

tubular nozzles

10 and 30 are located on the upper side and on the same level relative to the nozzle 20 on the assumed inclined surface P so as to have the same length and the same nozzle inner diameter, and the tubular nozzle 20 is located on the lower side relative to the assumed inclined surface P and the nozzle is shortest so that the nozzle inner diameter is also small.

That is, the line resistance Δ P of each cylindrical nozzle is 32 μ U × L/D2 (here, L is the length of the nozzle and D is the diameter of the nozzle), and L/D2 may be designed to be the same.

In the illustrated example, when the

tubular nozzles

10 and 30 are

At this time, the tubular nozzle 20 is set to

The content can be discharged as three parallel lines.

In the present embodiment, only one cylindrical nozzle 20 among the three cylindrical nozzles is short, and therefore the inner diameter thereof is reduced, but in the case where a plurality of cylindrical nozzles are provided and the heights of the cylindrical nozzles are different in a plurality of stages, the inner diameter may be reduced in accordance with the heights, respectively.

Fig. 7 and 8 show a state after the upper cover is opened and a state after the upper cover is closed in a case where the cover main body 2 has the upper cover 5 via the hinge portion 4.

The inner surface of the upper cap 5 has an outer ring 6 fitted to the core 3 when the upper cap 5 is fitted to the outlet 1, and a plug-shaped protrusion 7 fitted into the hole of the tubular nozzles 10 to 30.

On the other hand, an engaging portion 8 is formed on an upper portion of a side wall of the core portion 3, and when the upper lid 5 is closed and the outer ring 6 is fitted to the outside of the core portion 3, the engaging portion 8 is engaged with a front end side of the outer ring 6 in a concave-convex manner.

By the presence of the outer ring 6, the cylindrical nozzles 10 to 30 and the protrusions 7 are positioned in a manner that enables stable sealing.

As shown in fig. 11, the side surface of the core 3 can be easily wiped by lowering the height of the engaging portion 8 on the core 3 side.

Further, it is preferable that, among the inner walls of the tubular nozzles 10 to 30, the

inner walls

12, 22, 32 on the side where the inclined surface of the nozzle is higher have a smaller wall thickness so as to gradually expand the diameter as compared with the

inner walls

13, 23, 33 on the lower side, thereby forming the gap 15 (see fig. 10(a), 10(b), and 11).

This makes it easy to separate the liquid and to insert the projection 7 into the nozzle tip opening inner wall by expanding the gap 15 in one direction (upward of the inclined surface P).

It is preferable that the base point of the

inner walls

12, 22, 32 which is expanded is set to a position which coincides with the fitting position of the

inner walls

13, 23, 33 which is assumed to be below the inclined surface P.

Accordingly, the sealing surface in close contact with the projection 7 is perpendicular to the axial direction L of the nozzle, whereby the sealing force is stabilized (since a force is generated perpendicular to the radial direction, a rotational moment is not generated, and deformation can be prevented).

In the present invention, a plurality of tubular nozzles may be provided, and the number of the tubular nozzles may be odd or even.

Fig. 11 shows an example in which four

cylindrical nozzles

10, 20, 30, and 40 are provided.

In this case, it is assumed that the inclined surface P is not one but two (20, 30) cylindrical nozzles located at the lowermost position.

The present invention is not limited to the case where the hinge portion is not provided in the lid main body in the above-described embodiments and the illustrated examples, and the hinge portion may be provided in various forms.

In addition, the present invention is not limited to the above-described embodiments, and various design changes can be made without changing the gist of the present invention.

Claims

1. A spout structure of a container having a plurality of tubular nozzles separately arranged therein, characterized in that,

2. A spout construction according to claim 1,

the lower side of the inclined surface is assumed to be arranged to be the lower side of the pouring outlet portion when the container is inclined to pour out the content.

3. A spout construction according to claim 1 or 2,

an upper cover covering the pouring outlet part is connected with the pouring outlet part through a hinge part,

4. A spout construction according to any one of claims 1 to 3,

the cylindrical nozzle is formed on a core portion which protrudes at the center of the pouring outlet portion of the container and has a flat top surface.

5. A spout construction according to claim 4,

6. A spout construction according to claim 4 or 5,

the core is formed in a cylindrical shape.

7. A spout construction according to any one of claims 4 to 6,

all the cylindrical nozzles are disposed so as to be biased toward a surface below the assumed inclined surface in the upper surface of the core.

8. A spout construction according to any one of claims 1 to 7,

the inner diameter of the cylindrical nozzles disposed on the lower side of the assumed inclined surface is set to be smaller than the inner diameter of the other cylindrical nozzles on the upper side.

9. A spout construction according to any one of claims 1 to 8,

in the inner wall of the tubular nozzle, the inner wall on the side where the inclined surface of the tip end surface of the nozzle is higher is inclined so that the diameter thereof gradually increases with respect to the inner wall on the side where the inclined surface is lower.

10. A spout construction according to any one of claims 3 to 9,

a base point inclined so as to expand in diameter on the side where the inclined surface of the front end surface of the nozzle is higher is set at a position that coincides with a fitting position where a projection provided on the upper lid portion is fitted in an inner wall on the side where the inclined surface of the front end surface of the nozzle is lower.

11. A spout construction according to claim 7,

the plurality of cylindrical nozzles are arranged within ± 60 degrees from the center of the core.

12. A spout construction according to claim 7,

the cylindrical nozzle is composed of three or four cylindrical nozzles.