JPH08104350A - Spout - Google Patents

Abstract

PURPOSE: To provide a spout with functions available for adjustment of flow rate and prevention of pulsating flow on discharge of contents in low viscosity by a method wherein the upper half of the spout is made a passage for air with its contour formed in a shape that bulges out as compared with the lower half. CONSTITUTION: In a spout 10, with a spouting port 19 to be opened by tearing away the bottom by pulling a tab 17 provided on the bottom thereof closing the mouth of a container, of a spout main body to be fitted to the mouth of the container for liquid, the shape of the spouting port 19 is formed approximately in a rhombus that is long in its longitudinal direction. The upper half of the spouting port 19 is made a passage for air, and sides connecting the upper end A respectively to each of the side ends C and C on the right and the left are formed in straight lines, or in curves bulging outward. Therefore, return flow of air can be made satisfactorily on discharge of contents. The lower half of the spouting port 19 is made a passage for liquid, and the sides connecting the lower end B respectively to each of the side ends C and C on the right and the left are formed in straight lines, or in curves bulging inward. Thereby, contents can be discharged with satisfactory drainage even though viscosity thereof is low.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouring spout attached to the mouth of a liquid container such as a paper liquid container or a plastic bottle, and more particularly to pouring out contents having low viscosity such as soy sauce. Regarding mouth plugs.

[0002]

2. Description of the Related Art Conventionally, as a spout for spouting attached to the mouth of a liquid container, for example, Shoukai 58-67760.
A large number of configurations have been proposed as described in Japanese Utility Model Publication No. 62-52152. 58-6776
In the configuration proposed in No. 0, as shown in FIGS. 6 and 7, an inner stopper (53) provided with a tapered surface (52) at the upper end opening of the container (51) is fitted and the inner stopper ( The cap (54) is screwed into the (53) and the cap (54) is detachably detached for use and the inner plug bottom (5
The peeling portion (56) provided in 5) is a ring-shaped knob (57)
Since the spout (58) is provided by tearing off by means of the above, the taper surface is provided at the upper end portion of the inside plug, which has the characteristic of preventing the liquid from being drawn back.

The construction proposed in Japanese Utility Model Laid-Open No. 62-52152, as shown in FIGS. 8 and 9, includes a substantially cylindrical spigot body (61) which is detachably fitted to the container mouth. A rear portion provided at a space inside the outer peripheral wall (62) of the spout body (61) and projecting higher than the upper edge of the outer peripheral wall (62) of the spout body (61). Opening (6
3) and a spout body (61)
Between the inner side of the outer peripheral wall (62) and the outer side of the spout (64), connecting the two, and inclining toward the opening (63) of the spout (64), and the outer peripheral wall as a whole. It is composed of a return groove (65) inclined from (62) to the spout (64) side and an inwardly projecting edge portion (66) provided on the upper edge of the outer peripheral wall of the spout body. It is characterized by that.

As described above, these are not a structure for facilitating the pouring of the liquid content having a low viscosity, but a structure for facilitating the drainage of the liquid content after the pouring, and the accumulation inside the outer wall of the container. It is a structure for quickly returning the liquid content into the container, and no study has been made from the viewpoint of adjusting the flow rate of the liquid content having low viscosity such as soy sauce and preventing pulsating flow.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves such a problem and provides a pouring spout having a flow rate adjusting function and a pulsating flow preventing function at the time of pouring a low-viscosity content such as soy sauce. The purpose is to do.

[0006]

In order to achieve the above object in the present invention, first, in the first invention, a bottom wall portion for closing a container mouth portion of a stopper body attached to a mouth portion of a liquid storage container is provided. In a spout for tapping provided with a pouring hole cut out by a knob, the pouring hole has a substantially rhombic shape that is long in the vertical direction, and the upper half is an air passage and the lower half is Is a liquid flow path, and the liquid flow path is formed narrower than the air passage.

According to the second aspect of the invention, the bottom wall of the spout for plugging, which is closed by the hinge cap attached to the mouth of the liquid storage container, closes the mouth of the container and is cut open by a knob. In a spout for pouring provided with a pouring hole, the shape of this pouring hole is a substantially rhombus long in the vertical direction,
Further, the upper half thereof is an air passage, the lower half is a liquid passage, the liquid passage is formed narrower than the air passage, and the air passage is formed on the hinge side of the hinge cap. It is a spout for pouring characterized by being.

Furthermore, in the third invention, in the first and second inventions, the line connecting the upper end portion and the left and right end portions of the pouring hole is a straight line or a curved line bulging outward. It is a spout for pouring characterized by being formed.

Furthermore, in a fourth aspect of the invention, in the first and second aspects of the invention, the line connecting the left and right ends and the lower end of the pouring hole is formed in a straight line or an inwardly curved line. It is a spout for pouring characterized by being.

[0010]

As described above, according to the present invention, the upper half of the pouring hole is used as the air passage, and the line connecting the upper end portion and the left and right end portions is formed in a straight line or a curved line bulging outward. Improves air return when pouring out stored items. On the contrary, the lower half of the pouring hole is a liquid flow path, and the line connecting the left and right end portions and the lower end portion is formed in a straight line or a curved line that is recessed inward, so that even a low-viscosity stored item can be easily drained. leak.

[0011]

The present invention will be described in detail with reference to the following examples.
As shown in FIGS. 1 to 5, inside the peripheral wall (11),
A pulling ring (17) having an inner diameter of 13.3 mmφ connected by a column (16) and an outer diameter of 16.8 × 8.0 m described later.
A plug (10) having an outer diameter of 20.9 mmφ consisting of a closed portion (20) having a thin line of weakness (14) for cutting out a substantially rhombic cut piece (15) of m is cut by an ordinary injection molding machine. It was made using density polyethylene.

Further, as a spout plug closed by the hinge cap (21), a pull ring (17) having an outer diameter of 18.0 mmφ connected to a column (16) inside the peripheral wall (11) will be described later. Outer diameter 17.5 x 10.2 mm
(10) including a closing part (20) having a thin line of weakness (14) for cutting out the substantially rhombic cut-out piece (15), and the plug-in part (10) and the hinge piece (22). A spout for pouring, which is integrally formed with the hinge cap (21) connected by, was produced by using a low-density polyethylene in a usual injection molding machine. The hinge cap may be integrated with the pouring spout as in this embodiment, or the hinge cap may be separately manufactured and then attached to the pouring spout later.

Regarding the shape of the cut piece (15), the following three examples were carried out in order to adjust the flow rate and prevent pulsating flow when pouring soy sauce, which is the contents of the liquid container with the stopper attached. <First Embodiment> The opening start point in the vicinity of the column (16) is A, the opening end point is B, and the length between AB is 16.8 mm. Left and right end points intersecting the thin fragile line (14) in the direction orthogonal to the straight line connecting the points A and B are defined as C and C, and the length between them is 12.0 mm. The radius of curvature of point A is 2 mm, point B
Radius of curvature of 1.5mm, radius of curvature of points C and C is 3mm
And AC is linearly connected by a V-shaped cut (18), and CB is similarly connected by a V-shaped cut (18) in a curved shape having a concave curvature radius of 7 mm toward the opening side. Thus, a substantially rhombic cut piece (15) was produced.

<Second Embodiment> The AC of the first embodiment is connected by a curved line. That is, the opening start point near the column (16) is A, the opening end point is B, and the length between AB is 16.
8 mm. Left and right end points intersecting the thin fragile line (14) in the direction orthogonal to the straight line connecting the points A and B are defined as C and C, and the length between them is 12.0 mm. The radius of curvature of point A is 2
mm, the radius of curvature of the point B is 1.5 mm, and the radius of curvature of the points C and C is 3 mm. The AC lines are sequentially connected from the point A into a curved line having a concave radius of curvature of 2 mm on the opening side and a convex radius of curvature of 6 mm on the opening side by a V-shaped notch (18), and the V-shaped notch (B) is similarly formed between CB. 18) concave radius of curvature 7 on the opening side
Tie in a curved line of mm. Thus, a substantially rhombic cut piece (15) was produced.

<Third Embodiment> The length between CCs is shortened to narrow the width of the spout hole. That is, the opening start point near the pillar (16) is A, the opening end point is B, and the length between AB is 16.8 mm. The left and right end points that intersect the thin fragile line (14) in the direction orthogonal to the straight line connecting points A and B are C and C.
And the length between them is 8.0 mm. The radius of curvature of the point A is 2 mm, the radius of curvature of the point B is 1.5 mm, and the radii of curvature of the points C and C are 3 mm. V-shaped notch between AC (1
Connect in a straight line at 8), and between CB, 2m in parallel with straight line CC
From the point m to the point C to the point C, a point 2 mm parallel to the straight line CC is linearly connected by a V-shaped cut (18). Thus, a substantially rhombic cut piece (15) was produced. Further, in each of the embodiments, the upper half from the left and right end points C, C is the air passage (a), and the lower half is the liquid flow path (b).

Next, the neck portion of each of the spouting spouts having different spouting hole shapes produced in this way is connected to the spouting opening of the sleeve of the liquid paper container having the polyethylene layer formed on the inner surface. Part of the container wall (30) and the stopper (1
The upper surface of the base plate (13) of 0) was heat-fused and attached by the ultrasonic sealing method. In the thermal fusion of the stopper (10) to the container by the ultrasonic sealing method, the closed part (20)
No pinholes or cracks were found on the thin fragile wire (14). Then, a prescribed amount of soy sauce was stored in this container and the container was sealed.

Goods were obtained by pouring the contents from the container as follows. That is, when the cap attached to the spout (10) is removed, and a finger is put into the pull ring (17) and pulled upward, a crack is formed at the opening start point (A) of the thin fragile line (14), and the pull is further pulled. The thin line of weakness (14) at the periphery of the cut piece (15) was cut, the cut piece (15) was removed, and the pouring hole (19) was opened.

The soy sauce, which is a storage item, was poured into another container from the pouring hole (19) by tilting the container. At this time, since the shape of the pouring hole (19) had the above-described characteristics, the air returned well, pulsating flow did not occur, and soy sauce at a constant flow rate was continuously discharged.

[0019]

As described above, according to the present invention, the upper half of the pouring hole is used as the air passage and the shape is expanded as compared with the lower half of the pouring hole. As a result, a certain amount of stored items can be continuously discharged without pulsating flow, and when transferring to another container, the entire amount can be easily transferred. Further, since the lower half of the pouring hole is used as a liquid flow path and is narrower than the upper half, even a stored substance having a low viscosity does not easily flow out and does not stain the edge of the container.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a pouring hole portion of the present invention.

FIG. 2 is a plan view showing another embodiment of the pouring hole portion of the present invention.

FIG. 3 is a plan view showing still another embodiment of the pouring hole portion of the present invention.

FIG. 4 is a cross-sectional view of a spout for pouring in one embodiment of the present invention.

FIG. 5 is a plan view of a spout for spouting according to another embodiment of the present invention.

FIG. 6 is a sectional view showing a conventional example.

FIG. 7 is a plan view of an inside plug portion of the conventional example.

FIG. 8 is a cross-sectional view showing another conventional example.

FIG. 9 is a plan view of the conventional example.

[Explanation of symbols]

 10 ・ ・ ・ Mouth plug 11 ・ ・ ・ Peripheral wall 12 ‥ Male thread 13 ・ ・ ・ Pedestal plate 14 ・ ・ ・ Thin weak line 15 ・ ・ ・ Cut piece 16 ・ ・ ・ Post 17 ・ ・ ・ Pulling ring 18 ‥ V-shaped notch 19 ・ ・ ・ Pour out Hole 20 Closing part 21 Hinge cap 22 Hinge piece 30 Container wall 51 Container 52 Tapered surface 53 Inner plug 54 Cap 55 Inner plug bottom 56 Peeling part 57 ... Ring-shaped knob 58 ... Spout 61 ... Spout body 62 ... Outer wall 63 ... Opening 64 ... Spout 65 ... Return groove 66 ... Projecting edge A ... Opening start point B Opening end point C ... Left and right end points a ... Air passage b ... Liquid passage

Claims (4)

[Claims] 1. A spout for plugging, wherein a spout main body attached to a mouth of a liquid storage container has a spout hole cut out and opened by a knob on a bottom wall portion that closes the container mouth. The shape of the pouring hole is a substantially rhombic shape that is long in the vertical direction, and the upper half is an air passage and the lower half is a liquid passage, and the liquid passage is narrower than the air passage. A spout for pouring, which is characterized in that 2. A spout for plugging, which is closed by a hinge cap attached to the mouth of the liquid storage container, has a spout hole cut out and opened by a knob on the bottom wall portion that closes the mouth of the container. In the spout for pouring, the shape of the pouring hole is a substantially rhombic shape that is long in the up-down direction, and the upper half is an air passage and the lower half is a liquid passage, and the liquid flow is higher than the air passage. A spout for spouting, wherein the passage is formed narrower and the air passage is formed on the hinge side of the hinge cap. 3. The line according to claim 1 or 2, wherein a line connecting the upper end portion and the left and right end portions of the pouring hole is formed in a straight line or a curved line bulging outward. Spout for pouring. 4. The line according to claim 1 or 2, wherein a line connecting the left and right ends and the lower end of the pouring hole is formed in a straight line or a curved line that is recessed inward. Spout for pouring.