JP3315978B2 - Container with air intake mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for storing a liquid, which has a function of preventing a pulsating flow and controlling a discharge amount when discharging an internal liquid.

[0002]

2. Description of the Related Art Conventionally, as this type of container, there are a two-port container shown in FIG. 16 and a container having an air supply mechanism shown in FIG.

[0003]

In the two-port container shown in FIG. 16, it is troublesome to open both caps in order to discharge the internal liquid. In addition, the two-port type has a factor in cost increase such as the production of containers and the necessity of two caps. In this respect, a container of the type shown in FIG. 17 has a single port and is easy to use. However, it is difficult to mold the container because a special blow pin must be used due to the structure of the port. In addition, the discharge port and the air port coexist inside the port, and the air port may be in the way when filling the internal liquid.

Further, this is common to both types of containers, but the discharge speed changes in proportion to the liquid level at the time of discharge. The discharge speed is initially high when the liquid level is high, but decreases as the liquid level decreases.

[0005]

An intake mechanism 26 is provided at the base of the container opening 21. As the intake mechanism A large-diameter portion 24 having an opening area larger than the container mouth portion 21 is provided between the container mouth portion 21 and the main body, and a part or the entire periphery of the main-body-side opening peripheral wall of the large-diameter portion 24 is subjected to drawing processing. A regulating wall 23 that shields a part of is provided. (Examples 5, 6,
7) 2. A large-diameter portion 24 having an opening area larger than that of the container opening 21 is provided between the container opening 21 and the main body. A tube 141 is provided. (Examples 1, 2, 3, 4,
8), which enables rectification and discharge in a one-port container. In any of the above cases, the thickness of the regulating wall 23 is desirably as thin as possible and the tip is preferably acute.

Also, in order to prevent the restriction wall 23 and the air inlet 31 provided inside the mouth from obstructing, for example, when filling the internal liquid, the discharge mechanism of the air suction mechanism 26 provided on the main body side of the large-diameter portion 24. The outlet 25 is provided coaxially with the container mouth 21 in the same shape. (Examples 2 and 8)

[0007]

EXAMPLE 1 FIG. 1 is a front view and a plan view of a mouth of Example 1, and FIG. 2 is an enlarged sectional view and a plan view of the mouth of FIG. FIG. 3 is FIG.
FIG. 4 is a sectional view taken along the line BB in FIG. Here, 25 is a discharge port for the internal liquid, and 31 is a suction port for supplying air into the container. FIG. 5 is a partial cross-sectional view showing a discharge state in the container of the first embodiment.

In this example, a large-diameter portion 24 that is formed by blow molding is provided between the container mouth 21 and the main body, and a part of the peripheral wall on the main body side is narrowed to form an intake mechanism 26. For this reason,
A special mold structure, a blow pin, and the like are not required for forming the suction mechanism section 26, and the suction mechanism section 26 can be easily formed under ordinary container manufacturing conditions.

A specific example of the model of the first embodiment is shown below. The container capacity is 5 liters, the inner diameter of the mouth is 32 mm, the opening area of the discharge port of the suction mechanism is 800 mm2, and the slit width of the suction port is 3
mm, and the inlet opening area is 46 mm2.

A of the type of Example 1 with slightly changed numerical values
The shape and the B shape were provided at the mouth of a 5-liter container, and the relationship between the internal liquid amount and the discharge speed was examined. First, fill the container with about 5 liters of water, place it directly beside (the mouth is 30 degrees diagonally downward), and
The time required to dispense ml is measured. Then about 600
Similarly, the time required for ejection of about 600 ml is measured in a state where the amount has been reduced by ml + α, and this is repeated until measurement becomes impossible.
Table 1 shows the results.

[Table 1] From this result, it can be seen that the discharge speed is hardly affected by the internal liquid amount.

Embodiment 2 FIG. 6 is an enlarged sectional view of a mouth and a plan view of the mouth of a second embodiment.
FIG. 7 is a sectional view taken along the line CC in FIG. In the case of the first embodiment, there is a possibility that the suction mechanism 26 may be in the way when filling the internal liquid or when inserting the pump.
The discharge port 25 of No. 6 has the same diameter and the same shape as the container mouth 21 and is provided coaxially.

A specific model example of the second embodiment is shown below. The container capacity is 5 liters, the inner diameter of the mouth is 32 mm, the opening diameter of the outlet of the suction mechanism is 32 mm, and the opening area is 804 mm2.
The inlet slit width is 3 mm, and the inlet opening area is 60 mm2. Here, the container port 21 and the discharge port 25 of the suction mechanism 26 have the same diameter and the same shape, and are provided coaxially.

Third Embodiment FIG. 8 shows only the cross-sectional shape of the intake mechanism 26 of the third embodiment. In the first and second embodiments, the inlet 31
Are in the form of elongated slits, but they are circular here. By making it circular, the intake port 31 becomes compact, but the rectifying ability tends to decrease.

Embodiment 4 FIG. 9 is an enlarged sectional view of the mouth and a plan view and a bottom view of the mouth in Example 4, and FIG. 10 is a sectional view taken along the line DD in FIG. In this example, the discharge port 25 is about half as small as the container opening 21 because the intake mechanism 26 is compact, so that the discharge speed is smaller than the container opening. Also,
There is an inconvenience in filling the inner liquid into the container and inserting the pump into the mouth. Also in this example, the intake mechanism 26 is blow-molded.

Fifth Embodiment FIG. 11 is an enlarged sectional view of a mouth of a fifth embodiment and a bottom view of the mouth. In this example, the large-diameter portion 24 is located between the container opening 21 and the main body.
The restricting wall 23 is formed by narrowing the entire circumference of the peripheral wall on the main body side. It is desirable that the thickness of the regulating wall is as thin as possible and the tip is as sharp as possible.

Embodiment 6 FIG. 12 is an enlarged sectional view of a mouth portion and a plan view of the mouth portion of a sixth embodiment. In the fifth embodiment, the main body side of the large-diameter portion 24 is squeezed all around the circumference to make the opening circular. However, here, both sides are squeezed to form a substantially rectangular opening. The ejection direction is the longitudinal direction of the rectangular opening.

Embodiment 7 FIG. 13 is an enlarged sectional view of a mouth and a plan view of the mouth of a seventh embodiment.
It is a bottom view. In a variation of the previous two examples, the shape of the opening of the intake mechanism 26 is formed in a cross shape.

Eighth Embodiment FIG. 14 is an enlarged sectional view of the mouth of the eighth embodiment and a plan view of the mouth.
FIG. 15 is a front view near the mouth and a plan view of the same example. As in the previous three examples, a large-diameter portion 24 is provided between the container mouth portion 21 and the main body, and the main body side peripheral wall is narrowed to provide a discharge port 25 and an intake pipe 141. Discharge port 2
5 is provided on the same diameter and coaxially with the container opening 21, so that it does not obstruct the filling nozzle or the like.

[0019]

According to the present invention, rectified discharge can be performed in a 1.1-port container. 2. The discharge speed is kept almost constant regardless of the amount of the internal liquid. 3. Since there is no need for an intake pipe branched from the mouth as shown in FIG. 17, the degree of freedom in design is large. 4. When the intake port 31 is open inside the mouth as in FIG. 17 or Example 1, trouble may occur at the time of filling the internal liquid, or the like.
Such a problem can be solved by providing the container opening 21 and the discharge opening 25 of the suction mechanism unit 26 with substantially the same diameter and the same shape and providing them coaxially as in the second and eighth embodiments. . 5. No inner plug or the like for rectification discharge is required. 6. Since the intake mechanism 26 is of a blow molding type,
No special mold structure or blow pin is required, and it can be manufactured by ordinary molding.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment and a plan view of a mouth.

FIG. 2 is an enlarged sectional view and a plan view of the mouth of FIG.

FIG. 3 is a sectional view taken along the line AA in FIG. 2, that is, an intake mechanism.

FIG. 4 is a sectional view taken along the line BB in FIG.

FIG. 5 is a partial cross-sectional view illustrating an actual discharge state of the container according to the first embodiment.

FIG. 6 is an enlarged cross-sectional view and a plan view of the mouth according to a second embodiment.

FIG. 7 is a sectional view taken along the line CC in FIG.

FIG. 8 is a diagram illustrating a cross-sectional shape of an intake mechanism according to a third embodiment.

FIG. 9 is an enlarged cross-sectional view of the mouth and a plan view of the mouth according to the fourth embodiment.
It is a bottom view.

FIG. 10 is a sectional view taken along the line DD in FIG. 9;

FIG. 11 is an enlarged cross-sectional view of a mouth and a bottom view of the mouth according to the fifth embodiment.

FIG. 12 is an enlarged cross-sectional view of a mouth and a plan view of the mouth according to a sixth embodiment.

FIG. 13 is an enlarged cross-sectional view of a mouth part, a plan view of the mouth part, and a bottom view of the seventh embodiment.

FIG. 14 is an enlarged cross-sectional view of a mouth, a plan view of the mouth, and an EE cross-sectional view of Example 8.

15A and 15B are a front view and a plan view of the vicinity of a mouth portion according to an eighth embodiment.

FIG. 16 is a conventional two-port container.

FIG. 17 shows a one-port container having a conventional air supply mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Container mouth part 22 Mouth part inner diameter 23 Restriction wall 24 Large diameter part 25 Discharge port 26 Intake mechanism part 31 Intake port 32 Slit width of intake port 141 Intake pipe

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2001-48212 (JP, A) JP-A-10-230980 (JP, A) JP-A-2000-334814 (JP, A) JP, U) JP-A 51-84847 (JP, U) JP-A 54-113850 (JP, U) JP-A 59-66735 (JP, U) JP-A 39-23200 (JP, Y1) Special table 63-500934 (JP, A) U.S. Pat. No. 6,029,858 (US, A) U.S. Pat. No. 5,963,383 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) 47/06-47/14 B65D 47/32 B65D 47/36 B65D 51/16 B65D 23/00 B65D 1/02

Claims (5)

(57) [Claims] 1. A container opening 21 between a container opening 21 and a main body.
A container provided with an intake mechanism, wherein a large-diameter part 24 having a larger opening area is provided, and a part or the entire periphery of the main body side peripheral wall is formed by drawing to form an intake mechanism part 26. 2. The air intake mechanism according to claim 1, wherein the air intake mechanism comprises an outlet having a larger opening area and an air inlet having a smaller opening area. container. 3. A container provided with an intake mechanism according to claim 2, wherein the intake port 31 has a narrow slit shape. 4. An intake mechanism according to claim 1, wherein the intake mechanism comprises an outlet having a larger opening area and an intake pipe having a smaller opening area. container. 5. The container according to claim 1, wherein said discharge port is provided with substantially the same shape and the same opening area as said container mouth part and on the same axis. A container provided with the suction mechanism according to any one of the above.