JP6671778B2 - Dispensing cap - Google Patents

Description

  The present invention relates to a pouring cap mounted on a mouthpiece of a container body, and more particularly to a pouring cap provided with a flow rate adjusting plate.

2. Description of the Related Art As a dispensing cap, a cap that is attached to a mouthpiece of a container body and has an opening and a lid that closes the opening of the cap body has been conventionally known.
This type of cap is designed to incline the container body without squeezing the container body and to pour out the content liquid from the opening through the pouring cylinder (natural discharge). The hole diameter is determined.
For this reason, when pouring a small amount, it is necessary to reduce the inclination angle of the container body, but in this case, it is difficult to adjust the inclination angle of the container body. The liquid may jump out.
In view of this, a pour cap having a flow rate adjusting member in a cap body has been conventionally known (for example, see Patent Document 1).

Japanese Patent No. 5085357

However, although the flow rate adjusting member of the pouring cap described in Patent Document 1 is excellent in workability at the time of assembling, the relationship between the opening of the cap body and the flow path hole of the flow rate adjusting member (the hole diameter of the opening, However, there is a problem that the flow rate adjustment is not sufficient because the relationship such as the shape of the flow path hole is not taken into account.
Further, when the content liquid remains in the flow rate adjusting member after the pouring, there is a problem that the remaining liquid jumps out before the content liquid and becomes dirty when re-pouring.

An object of the present invention is to solve the above-described problem. When the container body is tilted and the content liquid is poured out, the flow rate can be constantly discharged regardless of the tilt angle or the pouring direction of the container body. An object of the present invention is to provide a pouring cap including a flow rate adjusting plate.
It is another object of the present invention to provide a pouring cap capable of quickly returning the content liquid to the inside of the container body without the content liquid remaining on the flow rate adjusting plate after the pouring.

In order to solve the above-mentioned problems, the present invention comprises, as a dispensing cap, a cap body attached to a mouthpiece of a container body filled with a content liquid, and a lid closing an opening of the cap body. A spouting cap for spontaneous discharge , wherein the cap body includes a mounting portion mounted on the mouthpiece portion of the container body, and a flow channel portion through which a content liquid to be discharged flows, and the flow channel portion includes a mounting portion. A cylindrical flow path tube connected upward from the upper end, a top wall extending inward from the upper end edge of the flow path tube, a circular opening penetrating the top wall, and a periphery of the opening. A flow pipe is provided on the inner periphery so as to block the flow path, and the flow control plate has a circular rectifying wall and an outer periphery of the rectifying wall. And a plurality of flow passage holes formed at equal intervals in the circumferential direction in the vicinity of the side, each having the same opening area. To adopt a configuration.

As a specific embodiment of the flow control plate, when the viscosity of the content liquid is less than 0.2 Pa · s, the opening ratio of the flow control plate is 13.5 to 27%, and the total opening area of the flow passage holes is 55%. １０５105 mm ² , when the viscosity of the content liquid is not less than 0.2 Pa · s and less than 2.0 Pa · s , the opening ratio of the flow regulating plate is 25-27%, The total opening area of the holes is 105 to 120 mm ² .
As a specific embodiment of the cap body, a configuration is adopted in which the hole diameter of the opening is 8 to 14 mm.
As another specific embodiment of the flow regulating plate, the flow regulating plate has a tapered rectifying wall inclined upward from the outer peripheral side toward the center, and a cylindrical rectifying wall erected from the outer edge of the rectifying wall. And a mounting portion .

By adopting the above configuration, the dispensing cap of the present invention enables the dispensing of the content liquid adjusted to a stable and constant flow rate without being affected by the inclination angle and the dispensing direction of the container body.
In particular, it is suitable when the content liquid is a liquid having a low viscosity.

In addition, the pouring cap of the present invention is such that the rectifying wall of the flow rate adjusting plate has a tapered shape inclined upward from the outer peripheral side toward the center, so that the content liquid remaining on the rectifying wall after the pouring can be quickly removed. The liquid can be guided to the flow path hole provided on the outer peripheral side, and the content liquid can be recovered from the flow path hole into the container body.

It is a figure which shows the closure state of the pouring cap of 1st Example. It is a bottom view which shows the flow path hole of the flow control plate of this invention, (a) is a figure which shows a round hole, (b) is a figure which shows a horizontally long hole, (c) is a figure which shows a vertically long hole. It is. It is a figure which shows the closing state of the pouring cap of 2nd Example. It is a figure which shows the closure state of the pouring cap of 3rd Example. It is a figure which shows the pouring state of the pouring cap of 3rd Example, (a) is a schematic diagram inclined by 100 degrees, (b) is a schematic diagram inclined by 145 degrees.

  Next, the pouring cap of the present invention will be described with reference to the drawings, taking an example in which the cap body is covered with an overcap.

  In FIG. 1, A is a container body, B is a cap body attached to the mouthpiece of the container body A, and C is an overcap that covers the cap body B and seals the inside of the container body A.

  As shown in FIG. 1, the container body A has a cylindrical mouthpiece portion 1, a shoulder portion 2 formed to be inclined downward from the lower end of the mouthpiece portion 1, and a container body A which is vertically provided from the shoulder portion 2. An engagement protrusion 4 is formed on the outer periphery of the upper portion of the barrel 1, and an annular neck ring 5 is formed below the engagement protrusion 4.

As shown in FIG. 1, the cap body B includes a mounting part 6 mounted on the mouthpiece part 1 of the container body A, and a flow path part 7 through which the content liquid to be poured flows.
The mounting portion 6 has an annular upper wall 8 that comes into contact with the upper end surface of the mouthpiece portion 1 at the time of mounting, an outer cylinder 9 that is vertically provided from an outer peripheral edge of the upper wall 8, and a vertically provided inner peripheral edge of the upper wall 8. And an inner cylinder 10.
At the lower end of the inner peripheral surface of the outer cylinder 9, an engagement protrusion 11 that engages with the engagement protrusion 4 of the mouthpiece 1 is formed.

The channel portion 7 includes a cylindrical channel tube 12 extending upward from the inner cylinder 10 of the mounting portion 6, and an annular top wall 14 extending inward from the upper end of the channel tube 12. And a pouring cylinder 15 erected from the inner edge of the ceiling wall 14.
Further, the channel tube 12 is formed with an external thread 13 for screwing an overcap C described later on an outer peripheral surface, and a fitting concave portion 12a for attaching a flow rate adjusting plate D described later is formed at an upper end of the inner peripheral side. It is formed over the entire circumference.
The fitting concave portion 12a for attaching the flow rate adjusting plate D may be formed as a fitting convex portion.
A circular partition 16 formed along the inner periphery of the discharge cylinder 15 is connected via a breakable thin weakened portion 17, and a pull ring 19 is provided on a top surface of the partition 16 via a support 18. Are connected.

As shown in FIG. 1, the overcap C includes a top wall 21 and an outer peripheral wall 22 that is vertically provided on an outer edge of the top wall 21, and has a circular cross-sectional shape.
A cylindrical sealing ring 23 that seals the inner periphery of the pouring cylinder 15 when the lid is closed is vertically provided from the back surface of the top wall 21.
Further, on the back surface of the top wall 21, a cylindrical mounting tube 24 for screwing with the cap body B at the time of closing the lid is vertically provided outside the sealing ring 23, and on the inner peripheral surface of the mounting tube 24, A female screw 25 is formed.

As shown in FIGS. 1 and 2, the flow regulating plate D has a tapered rectifying wall 30 inclined upward from the outer peripheral side toward the center, and a dome-shaped protruding portion erected at the center of the rectifying wall 30. 31, a plurality of circular flow passage holes 32 arranged at equal intervals along the circumference, in the vicinity of the outer peripheral side of the rectifying wall 30, and a cylindrical mounting portion erected from the outer edge of the rectifying wall 30. 33.
In the present embodiment, the flow regulating wall 30 has a tapered shape inclined upward toward the center, but may have a flat shape without inclination.
The fitting portion 33 has a fitting projection 34 for attachment to the cap body B formed on the outer peripheral upper end portion, but the fitting projection 34 for attachment to the cap body B is formed as a fitting recess. No problem.

As shown in FIG. 2, the flow regulating plate D has a circular shape in which the diameter of the flow regulating wall 30 is R in plan view, and as the flow passage hole 32, the flow regulating plate of FIG. The flow control plate has an oblong horizontal hole 36 having a long diameter in the circumferential direction, and the flow control plate of (c) has an oblong vertical hole 37 having a long diameter in the radial direction.
The number of the flow passage holes 32 is preferably about 4 to 10, and the shape of the flow passage holes 32 is not limited to a circle or an ellipse, but may be a triangle, a rectangle, or the like.
In the present embodiment, the flow path holes 32 in which the holes 35, 36 and 37 of the respective shapes are formed are disposed so as to be located on the inner circumference by a predetermined distance S from the outer edge of the flow regulating wall 30. However, the flow path hole 32 may be disposed in contact with the inner circumference of the attachment portion 33 as long as it is near the outer circumference side.
Therefore, as shown in FIG. 1, a connecting portion between the upper surface of the rectifying wall 30 and the inner periphery of the mounting portion 33 has an annular inclination that is inclined downward from the outer peripheral side of the rectifying wall 30 toward the flow path hole 32. A portion 38 is formed.

Next, a description will be given of a usage mode and an operation effect of the present embodiment.
Before the dispensing cap of this embodiment is mounted on the mouthpiece 1 of the container body A, it is necessary to assemble the flow rate adjusting plate D on the inner peripheral surface of the flow tube 12 of the cap body B. When the mounting portion 33 of the flow rate adjusting plate D is pushed into the inner periphery, the fitting projection 34 of the mounting portion 33 enters the ceiling wall 14 while slidingly contacting the inner peripheral surface of the flow path tube 12 and finally fits. It is held in the mating recess 12a.

In the capping step, the mouth tube portion 1 of the container body A is applied to an annular groove formed by the outer cylinder 9, the upper wall 8, and the inner cylinder 10 as the mounting portion 6 of the cap body B, and By applying a pressing force from above the wall 8, the engagement projection 11 of the outer cylinder 9 gets over the engagement projection 4 of the mouthpiece section 1 and fits, and the mouthpiece section 1 is fitted to the inner periphery of the outer cylinder 9. And the outer wall of the inner cylinder 10 and the upper wall 8 to fit.
After the capping step, the mounting tube 24 of the overcap C is screwed into the flow tube 12 of the cap body B, and the lid closing step of covering the cap body B with the overcap C is completed.
Note that a lid closing step may be performed before the capping step.

When the partition 16 of the cap body B is opened, the overcap C is turned to open the lid, and a finger is pulled on a pull ring 19 provided continuously on the upper surface of the partition 16 of the cap body B to pull it up. The weakened portion 17 is broken through the opening.
Finally, the partition 16 is unplugged, and an opening is opened inside the pouring tube 15.
After the opening is opened inside the dispensing cylinder 15, the liquid in the container main body A can be dispensed through the dispensing cylinder 15 by tilting the container body A in an arbitrary dispensing direction. .
Further, the pouring cap of this embodiment has a tapered shape in which the rectifying wall 30 of the flow rate adjusting plate D is inclined upward toward the center when the container body A is returned to the upright state after pouring into the content liquid. At the same time, an inclined surface that is inclined downward from the outer peripheral side of the flow regulating wall 30 toward the flow path hole 32 is formed, so that the content liquid remaining on the upper surface of the flow regulating wall 30 after pouring is quickly introduced into the flow path hole 32. The container can be guided and the content liquid can be collected into the container body A from the flow path hole 32.

When the content liquid has a low viscosity such as Worcester sauce, as shown in FIG. The flow regulating plate D is temporarily blocked by the flow regulating wall 30, and flows into the flow path space F in the flow path tube 12 through the flow path hole 32 on the lower side with which the liquid in the flow regulating wall 30 contacts.
Furthermore, since the top wall 14 is located at a position where the flow path holes 32 face each other, even when the flow path holes 32 are large, the content liquid flowing into the flow path space F collides with the top wall 14 and the momentum is increased. It is weakened and is discharged from the discharge tube 15.
In addition, the upper flow passage hole 32 of the rectifying wall 30 where the content liquid does not come into contact becomes an air flow passage, and air is exchanged with the outside of the container body A, thereby preventing pulsation of the content liquid and stabilizing the content liquid. As a result, it can flow into the flow channel tube 12.

  Next, in order to investigate the flow state of the liquid due to the difference in the hole diameter M of the opening and the opening area and the shape of the flow path hole 32, a 500 ml container was used as a flow rate adjusting plate D (E) as shown in FIG. The flow rate adjusting plate (a) of the round hole 35, the flow rate adjusting plate (b) of the horizontally long hole 36, and the flow rate adjusting plate (c) of the vertically long hole 37, which are the kinds of flow rate adjusting plates, are attached. Were exchanged so that the hole diameters M became 8 mm, 10 mm, 12 mm, and 14 mm, and the state of discharging the content liquid was compared.

In this comparative experiment, the dimensions of the flow control plates (a) to (c) shown in FIG. 2 are the diameter R of the rectifying wall of the flow control plate = 23 mm, the projected area of the flow control plate is 415 mm ² , At the distance S from the portion S = 2 mm, the opening area of one round hole in (a) is 7 mm ² (total opening area is 56 mm ² ), and the opening area of one oblong hole in (b) is 28 mm ² (total opening area is 112 mm ² ), (C) has an opening area of 13 mm ² (total opening area is 104 mm ² ).
Further, when the opening ratio of the flow passage hole 32 to the flow rate adjusting plate D (E) is calculated, the flow rate adjusting plate (a) is 13.5%, the flow rate adjusting plate (b) is 27%, and the flow rate adjusting plate (c) is Calculating the ratio of the hole diameter M of the opening to the diameter R of the flow regulating plate D (E) of the flow regulating plate D (E) is 0.35 for a hole diameter of 8 mm, 0.43 for a hole diameter of 10 mm, and 0.43 for a hole diameter of 10 mm. It is 0.52 for 12 mm and 0.61 for 14 mm hole diameter.
The experiment method is as follows: a 500 ml bottle is filled with about 500 ml of Worcester sauce (viscosity: less than 0.2 Pa · s), and as shown in FIG. 5, the bottle is tilted from an erect state at an angle θ1 = 100 °. When the tilt was made at a tilt angle θ2 of 145 °, the pouring state of the Worcester sauce was observed.

As a result, when the hole diameter of the opening is 8 mm, only the case where the flow rate adjusting plate is not attached and the case where the flow rate adjusting plate (b) of the horizontally long hole 36 is inclined at 100 ° and 145 ° are poured out. Although the amount was small, good outflow was confirmed when the hole diameter of the other openings was small.
Next, when a 500 ml bottle is filled with a medium concentrated source (viscosity: 0.2 Pa · s or more and less than 2.0 Pa · s) with about 500 ml of the content liquid, when the hole diameter of the opening is 8 mm and 10 mm, Can flow out only in the case of the flow rate adjusting plate (b) of the horizontally long hole 36, and when the flow rate adjusting plates are not attached, and in the case of the flow rate adjusting plates (a) and (c), the middle concentrated source flows out. could not.
On the other hand, when the hole diameters of the openings were 12 mm and 14 mm, only the flow control plate (a) having the round hole 35 could not be discharged.

  From the experimental results, it was found that, for the Worcester sauce having a low viscosity, when the flow rate adjusting plates (a) and (c) were used and when the flow rate adjusting plate (b) was used, all the openings except for the hole diameter of 8 mm were used. There is no problem in the pouring state even with the hole diameter.

Next, under the same experimental conditions as above, a 500 ml bottle was filled with about 500 ml of Worcester sauce, and as shown in FIG. 5, the bottle was tilted from an erect state at an inclination angle θ1 = 100 °, and when the bottle was inclined at an inclination angle θ2. = 145 °, the Worcester sauce flowing out for 5 seconds was collected, and the collected volume (unit: cc) was measured.
Table 1 shows the results of this comparative experiment.
In addition, a cross mark in a table | surface shows that it cannot pour out.

  From the results of this experiment, the difference between the amount of outflow when the bottle was tilted by 100 ° and that when the bottle was tilted by 145 ° (preferably within ± 5 cc) was determined by installing the flow rate adjustment plate regardless of the hole diameter of any opening. However, when the flow rate adjusting plates are attached, the difference is small. In particular, in the case of the flow rate adjusting plates (a) and (c), regardless of the hole diameter of any opening, It can be seen that the flow rate is constant (the difference is within ± 5 cc).

  Next, under the same experimental conditions as described above, a comparative experiment was conducted on the dispensed amount by changing the content liquid to a medium-concentrated sauce, and the results are shown in Table 2.

  From this experimental result, the difference between the outflow amount when the bottle was tilted by 100 ° and that when the bottle was tilted by 145 ° was constant even when only the flow rate adjustment plate (b) had a hole diameter of any opening. It can be seen that the output amount (difference is within ± 5 cc).

The following can be understood from the above experimental results.
(1) When the content liquid is a Worcester sauce and it is desired to pour out a small amount at a stable flow rate, the flow rate adjusting plate (a) is most suitable, and as the shape of the flow path hole 32, a round hole 35 is preferable.
(2) When the content liquid is a Worcester sauce and it is desired to pour out a large amount at a stable flow rate, the flow rate adjusting plate (c) is the most suitable, and the shape of the flow path hole 32 is a vertically long hole having a long diameter in the radial direction. 37 is preferred.
(3) When the content liquid is a medium-concentrated source and it is desired to dispense the liquid at a stable flow rate, the flow rate adjusting plate (b) is the most suitable. The flow adjusting plate (b) also has an opening having a hole diameter of 12 mm or 14 mm. The shape of the flow passage hole 32 is preferably a horizontally long hole 36 having a long diameter in the circumferential direction or a vertically long hole 37 having a long diameter in the radial direction.

At the start of use, after the opening is opened inside the pouring cylinder 15, the inside of the container body A can be sealed by closing the overcap C.
At this time, the outer periphery of the sealing ring 23 of the overcap C comes into close contact with the inner periphery of the pouring tube 15 of the cap body B, and seals the inside from the pouring tube 15.

Next, a second embodiment in which the cap body B and the overcap C are changed will be described with reference to FIG.
Hereinafter, the same components as those of the first embodiment will be denoted by the same reference numerals, and the changed portions will be denoted by the new reference numerals, and the description will focus on the differences.

As shown in FIG. 3, the cap body B of the present embodiment is a disc-shaped plug connected via a breakable thin weakened portion formed along the vicinity of the lower end of the inner periphery of the pouring tube 15. 40.
The plug 40 has a cylindrical wall 41 erected at the center of the upper part, a fitting ridge 42 is formed on the inner periphery of the upper end of the cylindrical wall 41, and the outer periphery of the cylindrical wall 41 has a vertical direction. Are formed in a plurality.
In addition, the lower end surface of the plug 40 is configured to be close to the upper end surface of the protrusion 31 of the flow rate adjusting plate E when the flow rate adjusting plate E is mounted.

In the overcap C, a fitting boss portion 45 having a fitting portion formed from the center to the outer peripheral tip portion is vertically provided on the back surface of the top wall 21, and the outer periphery of the fitting boss portion 45 when the lid is closed is provided outside. A cylindrical sealing ring 46 that seals the inner circumference of the dispensing cylinder 15 is provided vertically.
A plurality of ratchet teeth 47 formed in a vertical direction are provided on the inner peripheral surface of the sealing ring 46 as an unplugging mechanism for unplugging the plug 40.
Other configurations are the same as in the first embodiment.

Next, a description will be given of a usage mode and an operation effect of the present embodiment.
In the closing step of covering the cap body B with the overcap C, the dispensing cap of the present embodiment is configured such that when the mounting cylinder 24 of the overcap C is screwed into the flow path cylinder 12 of the cap body B, the sealing ring 46 is closed. The ratchet teeth 47 come into contact with the external teeth 43 of the plug 40, but the ratchet teeth 47 do not idle when the lid is closed and do not mesh with the external teeth 43 of the plug 40.
Next, when the overcap C is opened for the first time, the ratchet teeth 47 of the overcap C engage with the external teeth 43 of the plug body 40 by turning the overcap C, and the plug body 40 is The plug 40 is separated from the lower end of the inner periphery, and the fitted boss portion 45 is engaged with the fitting protrusion 42 of the cylindrical wall 41, thereby holding the separated plug 40 on the side of the overcap C.
Other configurations are the same as those of the first embodiment, and the operation and effect are also the same.

Next, a third embodiment in which the configuration of the cap body B is changed will be described with reference to FIG.
Hereinafter, the same components as those of the first embodiment will be denoted by the same reference numerals, and the changed portions will be denoted by the new reference numerals, and the description will focus on the differences.

As shown in FIG. 4, the cap body B of the present embodiment does not have a stopper removal mechanism, and omits the partition wall 16, the support 18, and the pull ring 19 that form the opening in the first embodiment. Equivalent to.
Other configurations are the same as those of the first embodiment, and the operation and effect are also the same.

The dispensing cap of the present invention is provided with a flow rate adjusting plate on the cap body, so that the content liquid adjusted to a stable and constant flow rate can be dispensed without being influenced by the inclination angle or the dispensing direction of the container body. It becomes possible.
In particular, the pouring cap of the present invention is suitable for use in a container of a seasoning liquid such as Worcester sauce whose content liquid has a low viscosity.

A container body B cap body C overcap (lid)
D, E Flow control plate F Flow path space M Hole diameter of opening R Diameter of flow control plate S Distance from outer edge θ1, θ2 Tilt angle 1 Portion 2 Shoulder 3 Body 3 Engagement ridge 5 Neck Ring 6 Mounting part 7 Flow path part 8 Upper wall 9 Outer cylinder 10 Inner cylinder 11 Engagement projection 12 Flow path cylinder 12a Fitting recess 13 Male screw 14 Top wall 15 Discharge cylinder 16 Partition wall 17 Weakened part 18 Column 19 Pull ring 21 Top wall 22 Outer peripheral wall 23 Sealing ring 24 Mounting cylinder 25 Female screw 30 Straightening wall 31 Projection 32 Flow path hole 33 Mounting part 34 Fitting convex part 35 Round hole 36 Horizontal elongated hole 37 Vertical elongated hole 38 Inclined surface 40 Plug body 41 Cylindrical Wall 42 Fitting ridge 43 External teeth 45 Fitting boss 46 Sealing ring 47 Ratchet teeth

Claims (5)

A cap body attached to the mouthpiece of the container body filled with the content liquid, and a spouting cap of spontaneous discharge including a lid closing an opening of the cap body,
The cap body includes a mounting portion that is mounted on the mouthpiece portion of the container body, and a flow path portion through which the content liquid to be poured flows,
The flow path portion has a cylindrical flow path tube continuously connected upward from the upper end of the mounting portion, a top wall extending inward from the upper end edge of the flow path tube, and a circular opening penetrating the top wall. And a pouring cylinder erected around the opening,
The flow channel cylinder has a flow rate adjustment plate attached to the inner circumference so as to block the flow channel,
The flow rate adjusting plate includes a circular rectifying wall and a plurality of flow passage holes formed at equal intervals in the circumferential direction near the outer peripheral side of the rectifying wall, each having the same opening area. cap. When the viscosity of the content liquid is less than 0.2 Pa · s, the opening ratio of the flow control plate is 13.5 to 27%, and the total opening area of the flow passage holes is 55 to 105 mm ^2. The pouring cap according to claim 1. When the viscosity of the content liquid is 0.2 Pa · s or more and less than 2.0 Pa · s , the opening ratio of the flow control plate is 25 to 27%, and the total opening area of the flow passage holes is 105 to 120 mm ² . The dispensing cap according to claim 1, wherein:   The pouring cap according to claim 2 or 3, wherein the opening has a hole diameter of 8 to 14 mm. The flow rate adjusting plate includes a tapered rectifying wall inclined upward from the outer peripheral side toward the center, and a cylindrical mounting portion erected from an outer edge of the rectifying wall . 4. The pouring cap according to any one of 4.

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