JP2023005992A - Powder discharge container - Google Patents

Abstract

To provide a powder discharge container capable of stably discharging an appropriate amount of powder while suppressing scattering to the surroundings.SOLUTION: A powder discharge container 1 includes: a container 2 having a trunk part 2b and a mouth part 2c having flexibility and having a storage space S for storing powder; a hollow pipe 4A having an upper opening 4a, a lower opening 4b, and an air introduction port 4c positioned between the upper opening 4a and the lower opening 4b; and a cap 3 attached to the mouth part 2c to hold the pipe 4A inside the mouth part 2c and having a discharge port 3k connected to the upper opening 4a. When the trunk part 2b is pressed, the air in the storage space S flows from the air introduction port 4c toward the upper opening 4a, as a result, powder in the storage space S passes through the upper opening 4a passing through the inside of the pipe 4A from the lower opening 4b, and is discharged from the discharge port 3k.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a powder ejection container capable of ejecting powder such as cosmetics, medicines, and seasonings.

2. Description of the Related Art For example, Patent Document 1 discloses a powder ejection container that stores powder such as cosmetics, medicines, and seasonings and can eject the powder when desired.

The container of Patent Document 1 tilts the container so that the cap faces downward, and performs a swinging operation in that state to discharge an appropriate amount of powder.

Japanese Utility Model Publication No. 1-8525

By the way, when a container of this type is shaken, a relatively large amount of powder tends to be discharged. In addition, when the swinging motion is performed, the powder often scatters around, especially when the particle size of the powder is fine (for example, powder used for makeup, or used for childcare or nursing care). ), scattering to the surroundings becomes remarkable.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such problems, and to provide a powder discharge container capable of stably discharging an appropriate amount of powder while suppressing scattering to the surroundings. With the goal.

The present invention comprises a container having a body having flexibility and a mouth connected to the body, and having a storage space for containing powder inside the body and the mouth;
a hollow pipe having an upper opening, a lower opening, and an air inlet located between the upper opening and the lower opening;
a cap attached to the mouth to hold the pipe inside the mouth and having a discharge port connected to the upper opening;
When the body portion is pressed, the air in the accommodation space flows from the air inlet toward the upper opening, and powder in the accommodation space flows from the lower opening through the inside of the pipe to the upper opening. A powder ejection container that passes through and is ejected from the ejection port.

Preferably, the pipe is cylindrical, and the inner diameter of the lower opening is 0.8 mm or more and 6.4 mm or less.

When the area of the air inlet is S1 and the area of the lower opening is S2, it is preferable to satisfy the following formula (1).
1×S2≦S1≦16×S2 (1)

It is preferable that one of the trunk and the pipe has a restricting portion that protrudes toward the other of the trunk and the pipe to regulate the amount of pressing of the trunk.

The powder discharge container of the present invention is configured to discharge the powder by pressing the body without using a swinging motion. It is possible to suppress the problem that the powder is discharged and scattered around. Further, as will be described later, even with a powder discharge container that discharges powder by pressing the body, it is difficult to adjust the discharge amount of the powder using a pipe that is not provided with an air inlet. However, according to the powder discharge container of the present invention having a pipe provided with an air inlet, the discharge amount can be stably adjusted.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional side view showing an embodiment of a powder discharge container according to the present invention; FIG. 5 is a cross-sectional side view showing a modification of the powder discharge container according to the present invention. 3 is a diagram showing a state in which powder is discharged from the powder discharge container shown in FIG. 2, and is a diagram showing a state in which a large amount of powder is contained in the container. FIG. FIG. 3 is a diagram showing a state in which powder is discharged from the powder discharge container shown in FIG. 2, and is a diagram showing a state in which the amount of powder accommodated in the container is small. FIG. 5 is a diagram showing confirmation results regarding the powder discharge state in the powder discharge container shown in FIGS. 3 and 4; FIG.

An embodiment of a powder discharge container according to the present invention will be described below with reference to the drawings. Note that the vertical direction in this specification and the like is the direction along the illustrated axis O (the axis of the pipe 4A, which will be described later). Further, the radial direction is a direction orthogonal to the axis O within a plane perpendicular to the axis O, and the circumferential direction is a direction in which the axis O is the center of rotation within this plane.

First, referring to FIG. 1, the configuration of a powder discharge container 1, which is an embodiment of the powder discharge container according to the present invention, will be described. The powder discharge container 1 of this embodiment includes a container 2, a cap 3, a pipe 4A and a lid 5 which are made of synthetic resin.

The container 2 includes the bottom wall portion 2a shown in FIG. 1 and a body portion 2b connected to the outer edge of the bottom wall portion 2a. A cylindrical mouth portion 2c is connected to the upper end portion of the body portion 2b. A neck ring 2d extending in the circumferential direction is provided on the outer peripheral surface of the mouth portion 2c, and the neck ring 2d is positioned above the neck ring 2d. A male threaded portion 2e is provided.

As shown, inside the bottom wall portion 2a, the body portion 2b, and the mouth portion 2c, there is a storage space S for storing powder (for example, powder used for makeup, or used for childcare or nursing care). be provided. Further, the trunk portion 2b is flexible, and the accommodating space S is pressurized by pressing.

The cap 3 includes a top wall portion 3a positioned above the mouth portion 2c and extending in the horizontal direction, and a cap peripheral wall extending downward from the outer edge portion of the top wall portion 3a and surrounding the periphery of the mouth portion 2c. and a female threaded portion 3c provided on the inner peripheral surface of the cap peripheral wall portion 3b. The female threaded portion 3c can be screwed into the male threaded portion 2e, and the cap 3 is attached to the mouth portion 2c by screwing the female threaded portion 3c and the male threaded portion 2e.

3 d of through-holes which penetrate the ceiling wall part 3a in the up-down direction are provided in the center part of the ceiling wall part 3a. A lower annular wall 3e surrounding the through hole 3d is provided on the lower surface of the ceiling wall portion 3a, and an inner circumference of the mouth portion 2c is positioned radially outwardly of the lower annular wall 3e with the cap 3 attached to the mouth portion 2c. An annular sealing wall 3f is provided to abut the surface. An upper annular wall 3g surrounding the through hole 3d is provided on the upper surface of the ceiling wall portion 3a, and a stepped portion 3h formed by recessing the upper surface downward is formed on the outer peripheral portion of the upper surface of the upper annular wall 3g. is provided. In addition, on the upper surface of the upper annular wall 3g, after extending upward along the axis O from the side on which the hinge portion 5a described later is provided, ) to cover the upper part of the through hole 3d. A discharge port 3k that opens sideways is provided between the end of the eaves 3j and the upper end of the upper annular wall 3g on the side opposite to the side on which the hinge portion 5a is provided. The opening area of the ejection port 3k is smaller than the opening area of the through hole 3d (the area of the through hole 3d in the cross section).

The pipe 4A is hollow (in this embodiment, cylindrical with the same diameter from top to bottom) and has an upper opening 4a and a lower opening 4b. Between the upper opening 4a and the lower opening 4b of the pipe 4A (near the upper opening 4a in this embodiment), there is a hole (air inlet 4c) extending along the axis O and penetrating the pipe 4A. is provided. An inner passage T is provided inside the pipe 4A, and the inner passage T is connected to the upper opening 4a, the lower opening 4b, and the air inlet 4c. The pipe 4A is fitted and held by the lower annular wall 3e by inserting its upper end portion inside the lower annular wall 3e. When the pipe 4A is fitted and held in the lower annular wall 3e, the air inlet 4c is located below the lower annular wall 3e.

Note that the pipe 4B shown in FIG. 2 may be used instead of the pipe 4A described above. The pipe 4B has a cylindrical shape like the pipe 4A, and further has a disc-shaped restricting portion 4d that protrudes radially outward (protrudes toward the body portion 2b) on its outer peripheral surface. there is A total of two restricting portions 4d of this embodiment are provided with an interval therebetween in the vertical direction.

The lid 5 is integrally connected to the cap 3 via a bendable hinge portion 5a. The lid body 5 has a top wall 5b located above the top wall portion 3a and a top wall 5b positioned above the top wall portion 3a when the hinge portion 5a is bent inward to close the lid from the open state shown in FIG. and a lid peripheral wall portion 5c provided. Further, the lid peripheral wall portion 5c has a knob portion 5d extending radially outward on the side opposite to the side where the hinge portion 5a is located. Further, on the rear surface of the top wall 5b, there is provided a lid seal wall 5e that abuts against the stepped portion 3h when the lid 5 is closed.

Next, a method for discharging powder from the powder discharge container 1 having the pipe 4B shown in FIGS. 2 and 3 will be described. The powder discharge container 1 having the pipe 4A shown in FIG. 1 also discharges the powder in the same manner as the powder discharge container 1 having the pipe 4B.

When the powder is discharged from the powder discharge container 1, the cover 5 is opened as shown in FIG. 2, and the body 2b is pressed. As a result, as shown in FIG. 3, the air in the accommodation space S rapidly flows from the air inlet 4c toward the upper opening 4a inside the pipe 4B, passes through the through hole 3d of the cap 3, and flows through the outlet 3k. discharged from That is, the inside of the pipe 4B becomes a negative pressure due to the rapid air flow above it. Therefore, the powder that has entered the inner passage T is sucked up and the powder in the housing space S is sucked up from the lower opening 4b, so that the sucked powder is discharged from the discharge port 3k.

As described above, the powder discharge container 1 of the present embodiment can discharge the powder by pressing the body portion without using the swinging motion of the conventional powder discharge container. It is possible to suppress the problem that a relatively large amount of powder is discharged and scattered around, which tends to occur in the container. Further, since the body portion 2b can be pressed while the container 2 is placed on a desk or the like in an upright position, the powder can be discharged while the discharge port 3k is directed to an intended location. .

By the way, although illustration is omitted, the inventor of the present application prepared a powder discharge container as a comparative example (which has the same configuration as the powder discharge container 1 shown in FIG. 1, but eliminates the air introduction port 4c provided in the pipe 4A). Also, a pipe connecting only the upper opening 4a and the lower opening 4b is used in the inner passage T) to confirm the discharge state of the powder. In the powder discharge container of the comparative example, when the housing space is pressurized by pressing the body of the container, the air and powder in the housing space pass through the internal passage from the lower opening of the pipe and are discharged from the cap. discharged from the outlet. However, in the powder discharge container of the comparative example, it was sometimes difficult to adjust the discharge amount of the powder (control of the discharge amount) by adjusting the amount of pressure applied to the body. On the other hand, according to the powder discharge container 1 of the present embodiment, it was possible to stably adjust the powder discharge amount (discharge amount control) by adjusting the amount of pressure applied to the body portion 2b.

Further, when the powder is discharged from the powder discharge container 1 shown in FIG. In some cases, the amount of powder to be ejected becomes excessive, and the powder is ejected from the ejection port 3k in the form of lumps. Therefore, in order to prevent the body portion 2b from being excessively pressed, it is preferable to provide a restricting portion 4d like the pipe 4B in FIG. Note that the restricting portion 4d is not limited to the illustrated one, and the shape and number thereof can be changed as appropriate. Further, a portion protruding toward the axis O may be provided inside the body portion 2b so that even if the body portion 2b is excessively pressed, this portion may contact the outer peripheral surface of the pipe (i.e., this protrusion (The portion where the pressure is applied may function as a restricting portion.)

Further, the inventors of the present application conducted extensive studies and found that by setting the relationship between the inner diameter of the lower opening 4b in the pipes 4A and 4B and the area (opening area) between the lower opening 4b and the air inlet 4c within a predetermined range, the powder can be It has been found that the exhalation of the body is better. This point will be described with reference to the confirmation results regarding the powder ejection state shown in FIG. The results of confirmation in FIG. 5 are based on the powder discharge container 1 shown in FIG. When the area of the mouth is S1 and the area of the lower opening is S2, the range of (⅛)×S2≦S1≦16×S2 (in FIG. 5, the area of the lower opening is S2: the area of the air inlet is 8 : 1 to 1:16). Regarding the "amount of powder in the container" in FIG. 5, "large" means that the upper surface of the powder contained in the containing space S is located near the air inlet 4c as shown in FIG. , "Low" is a state in which the upper surface of the powder accommodated in the accommodation space S is positioned below the lower opening 4b as shown in FIG. Further, when discharging the powder, the body portion 2b is pressed to such an extent that its inner peripheral surface comes into contact with the restricting portion 4d as illustrated. If the difference in the amount of powder discharged exceeds 0.4 mg when the "amount of powder in container" is "large" and "small", there is a difference in the amount of powder discharged. I had the impression that For this reason, if the difference between when the "amount of powder in the container" is "large" and "small" is 0.4 mg or less, the difference between when the powder discharge container 1 is started and when it is finished using is It is judged that there is little variation in the discharge amount of the powder and it is good. 5 indicates that the powder was ejected from the ejection port 3k in a lump. There is little variation in the amount of powder discharged when the powder discharge container 1 is started and when it is finished), and the state of the discharged powder is good (the powder does not spread too much to the surroundings). , and no clumping) was visually confirmed.

As a result of checking under these conditions, when the pipe 4B with the inner diameter of the lower opening 4b of 0.4 mm was used, the inside of the pipe 4B was sometimes clogged with powder. When the inner diameter of the lower opening 4b is 0.4 mm and the ratio of the area S2 of the lower opening to the area S1 of the air inlet is 1:2 or 1:16, the "amount of powder in the container" is The difference in the amount of powder ejected between "large" and "small" exceeded 0.4 mg. On the other hand, if the inner diameter of the lower opening 4b is 0.8 mm or more and 6.4 mm or less, the phenomenon that the powder clogs the inside of the pipe 4B is not observed, and the "amount of powder in the container" is "large". The difference in the powder ejection amount in the case of "low" was also 0.4 mg or less. Therefore, the inner diameter of the lower opening 4b is preferably 0.8 mm or more and 6.4 mm or less.

Further, when the inner diameter of the lower opening 4b is 0.8 mm or more and 6.4 mm or less, the powder Although the phenomenon that the powder clogged inside the pipe 4B was not observed, the phenomenon that the powder was ejected in lumps was observed when the "amount of powder in the container" was "large". For this reason, the inner diameter of the lower opening 4b is set to 0.8 mm or more and 6.4 mm or less. It is preferable that the ratio of the area S2 of the opening to the area S1 of the air inlet is from 1:1 to 1:16.

Although one embodiment of the present invention has been described above, the present invention is not limited to such a specific embodiment, and unless otherwise limited by the above description, the spirit of the present invention described in the claims Various modifications and changes are possible within the range of. Moreover, the effects of the above embodiments are merely examples of the effects produced by the present invention, and do not mean that the effects of the present invention are limited to the above effects.

1: Powder discharge container 2: Container 2a: Bottom wall 2b: Body 2c: Mouth 2d: Neck ring 2e: Male screw 3: Cap 3a: Top wall 3b: Cap peripheral wall 3c: Female screw 3d: Through Hole 3e: Lower annular wall 3f: Seal wall 3g: Upper annular wall 3h: Stepped portion 3j: Eaves portion 3k: Discharge ports 4A, 4B: Pipe 4a: Upper opening 4b: Lower opening 4c: Air inlet 4d: Regulating portion 5 : Lid 5a: Hinge 5b: Top wall 5c: Lid peripheral wall 5d: Knob 5e: Lid sealing wall O: Axis line S: Accommodating space T: Inner passage

Claims (4)

a container having a body having flexibility and a mouth connected to the body, and having a storage space for containing powder inside the body and the mouth;
a hollow pipe having an upper opening, a lower opening, and an air inlet located between the upper opening and the lower opening;
a cap attached to the mouth to hold the pipe inside the mouth and having a discharge port connected to the upper opening;
When the body portion is pressed, the air in the accommodation space flows from the air inlet toward the upper opening, and powder in the accommodation space flows from the lower opening through the inside of the pipe to the upper opening. A powder ejection container that passes through and is ejected from the ejection port. 2. The powder discharge container according to claim 1, wherein the pipe is cylindrical and the inner diameter of the lower opening is 0.8 mm or more and 6.4 mm or less. 3. The powder discharge container according to claim 2, wherein the following formula (1) is satisfied, where S1 is the area of the air inlet and S2 is the area of the lower opening.
1×S2≦S1≦16×S2 (1) Any one of the body portion and the pipe has a restricting portion that protrudes toward the other of the body portion and the pipe and restricts the pressing amount of the body portion. The powder discharge container according to 1.

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