JP7365965B2 - Discharge container - Google Patents

Description

The present invention relates to a dispensing container.

Conventionally, for example, as shown in Patent Document 1 below, there has been a container body in which contents are stored, and an inner plug member that is attached to the mouth of the container body and has a communication hole that communicates with the inside of the container body. a press-down head that covers the inner plug member from above and is movable downward in an upwardly biased state, and is formed with a discharge hole that can communicate with the communication hole; A biasing member whose upper end is supported by the push-down head and urges the push-down head upward is provided between the push-down head and the push-down head, and when the push-down head is pushed down, the contents that have passed through the communication hole are discharged from the discharge hole. Discharge containers are known that are provided with a pump mechanism that allows the contents in the container body to pass through the communication hole toward the discharge hole side when the release of the pump mechanism.

Japanese Patent Application Publication No. 7-232780

However, the conventional dispensing container has a problem in that the biasing member that biases the push-down head upward cannot be easily removed.
In this case, when the contents are used up, the dispensing container must be discarded with the biasing member made of a different material attached, which can reduce environmental impact and improve waste processing efficiency. cannot respond to

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a discharge container whose biasing member can be easily removed when discarding the container.

The present invention employs the following means to solve the above problems. That is, the discharge container of the present invention includes a container body in which the contents are stored, an inner plug member that is attached to the mouth of the container body and has a communication hole that communicates with the inside of the container body, and a press-down head that covers the plug member from above the inner plug member, is provided so as to be movable downward in an upwardly biased state, and is formed with a discharge hole that can communicate with the communication hole; a biasing member whose upper end is supported by the push-down head and urges the push-down head upward; and a biasing member that urges the push-down head upward, and a biasing member that discharges the contents that have passed through the communication hole when the push-down head is pushed down. A pump mechanism is provided, which causes the contents in the container body to pass through the communication hole toward the discharge hole side when the contents are discharged from the hole and the press is released, and the push-down head is connected to the container body, and The head body may include a frame body that is restricted from being removed upwardly from the inner plug member, and a head body that closes the inside of the frame body and is removably provided on the frame body.

According to the present invention, the push-down head includes a frame body that is restricted from being removed upwardly from the container body and the inner plug member, and a head body that is removably provided in the frame body, so that the content When the object is finished using, the head main body is separated from the frame body, so that the inside of the push-down head is opened to the outside, and the biasing member whose upper end is supported by the push-down head can be easily removed. can. Thereby, it becomes possible to easily separate the biasing member from other constituent members, and it is possible to reduce the environmental load and improve waste processing efficiency.

The head main body may include an operation tube whose outer peripheral surface is exposed to the outside.

In this case, since the head body is equipped with an operation tube whose outer peripheral surface is exposed to the outside, the head body can be easily detached from the frame by operating the operation tube when the contents have been used. Can be done.

The head main body may be formed in the shape of a capped cylinder having a top wall, and a lower surface of the top wall may support an upper end of the biasing member.

In this case, since the upper end of the biasing member is supported by the lower surface of the top wall of the head main body, at least the upper end of the biasing member is exposed to the outside when the head main body is removed from the frame. Therefore, the biasing member can be easily removed.

According to this invention, the biasing member can be easily removed when discarded.

FIG. 2 is a longitudinal cross-sectional view of a discharge container shown as an embodiment of the present invention. FIG. 2 is a diagram showing the discharge container shown in FIG. 1 in a state where the head main body is separated from the frame.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
The discharge container 1 according to this embodiment includes a container body 11, an inner plug member 12, and a push-down head 13, as shown in FIG. All the constituent members of the discharge container 1 are made of synthetic resin except for a biasing member 40 which will be described later.

The container body 11 is a wide-mouthed jar container in which the inner diameter of the body and the inner diameter of the mouth are made equal to each other. Note that the container body 11 may have a structure in which the inner diameter of the body is larger than the inner diameter of the mouth.
The container body 11 includes a container body 21, a locking cylinder 22, and an inner plate 23.

The container body 21 is formed into a cylindrical shape with a bottom, and the container body 21, the locking cylinder 22, and the inner plate 23 are arranged coaxially with the common axis O. Hereinafter, the bottom wall 24 side of the container body 21 along the common axis O is referred to as the lower side, the mouth 25 side of the container body 21 along the common axis O is referred to as the upper side, and the direction along the common axis O is referred to as the up-down direction. . When viewed from above and below, the direction that intersects the common axis O is called the radial direction, and the direction that goes around the common axis O is called the circumferential direction.

The contents are accommodated within the container body 21. Examples of the contents include creamy cosmetics and the like. The front and back surfaces of the bottom wall portion 24 of the container body 21 face in the vertical direction. An outside air introduction hole 24 a that opens into the container body 21 is formed in the bottom wall portion 24 . The opening 25 of the container body 21 is formed with a male threaded portion onto which the locking tube 22 is screwed.
The mouth of the container body 11 is constituted by the mouth 25 of the container body 21 and the locking cylinder 22.

The locking tube 22 includes a main body tube 26 screwed onto the opening 25 of the container body 21, and a regulating tube 22a provided inside the main body tube 26 and extending downward from the upper end of the main body tube 26. We are prepared.
In the main body tube 26, a female threaded portion is formed on the inner circumferential surface of the lower part thereof and is screwed into the mouth part 25 of the container main body 21, and the upper part is located above the container main body 21. A stepped portion 26a whose front and back surfaces face in the vertical direction is formed at the top of the main body cylinder 26. The step portion 26a is located above the upper opening edge of the mouth portion 25 of the container body 21, and is opposed to it in the vertical direction. A lid C is removably fitted onto an upper end portion of the main body tube 26 located above the step portion 26a.
The inner plate 23 is fitted into the container body 21 so as to be slidable upward. The inner tray 23 moves upward as the contents stored in the portion located above the inner tray 23 within the container body 21 decrease. The inner plate 23 is formed into a capped cylinder shape.
Note that the inner plate 23 may not be provided.

The inner plug member 12 is attached to the mouth of the container body 11. The inner plug member 12 is formed into a cylindrical shape with a bottom, and includes an inner plug peripheral wall portion 27 and an inner plug bottom wall portion 28 .

In the inner plug peripheral wall portion 27, a lower portion is inserted into the mouth portion 25 of the container main body 21, and an upper portion is located above the container main body 21 and fitted into the upper portion of the main body cylinder 26. A flange portion 27a is formed on the upper portion of the inner stopper peripheral wall portion 27, protruding radially outward and disposed at the upper opening edge of the mouth portion 25 of the container body 21. The flange portion 27a is vertically sandwiched and fixed between the upper opening edge of the mouth portion 25 of the container body 21 and the lower surface of the step portion 26a of the locking tube 22. A regulating tube 22a of the locking tube 22 is inserted into the inner plug peripheral wall portion 27.

The inner plug bottom wall portion 28 closes the lower end opening of the inner plug peripheral wall portion 27. A communication hole 29 that penetrates the inner plug bottom wall 28 in the vertical direction and communicates with the inside of the container body 11, a cylinder tube 31 that surrounds the communication hole 29 from the outside in the radial direction and projects upward, and a cylinder tube 31 that extends upwardly. A guide tube 32 is provided that surrounds the tube from the outside in the radial direction. The communication hole 29, the cylinder tube 31, and the guide tube 32 are arranged coaxially with the common axis O. The inner diameter of the cylinder tube 31 is larger than the inner diameter of the communication hole 29.

The push-down head 13 covers the inner plug member 12 from above, is provided so as to be movable downward in an upwardly biased state, and has a discharge hole 30 that can communicate with the communication hole 29 . The push-down head 13 includes a frame 33 that is restricted from being removed upward from the container body 11 and the inner plug member 12, and a head main body 34 that closes the inside of the frame 33 and is removably provided in the frame 33. It is equipped with.

The frame body 33 is provided with an outer cylinder 35 that is integrally inserted into the regulating cylinder 22a of the locking cylinder 22 and into the inner stopper peripheral wall 27, and is provided inside the outer cylinder 35 and extends downward from the upper end of the outer cylinder 35. A female threaded cylinder 36 extending toward.

A female threaded portion is formed on the inner peripheral surface of the female threaded cylinder 36. The lower end opening edges of each of the female threaded cylinder 36 and the outer cylinder 35 are located above the upper surface of the inner plug bottom wall part 28. The upper end of the outer cylinder 35 has a smaller diameter than the portion located below the upper end. The upper end of the outer cylinder 35 is located above the container body 11. The outer peripheral surface of the outer cylinder 35 and the inner peripheral surface of the regulating cylinder 22a each have separate rotation prevention parts that restrict the relative rotation of the frame body 33 and the container body 11 in the circumferential direction by engaging with each other in the circumferential direction. It is formed.

A locked portion 35a is formed in the outer cylinder 35 so as to protrude outward in the radial direction and can come into contact with the lower end opening edge of the regulating cylinder 22a of the locking cylinder 22 from below. The locked portion 35a is spaced downward from the lower opening edge of the regulating tube 22a. Note that the locked portion 35a may be in contact with the lower opening edge of the regulating tube 22a. When the locked portion 35a comes into contact with the lower end opening edge of the regulating tube 22a, the frame 33 is prevented from separating upwardly from the container body 11 and the inner plug member 12. Note that the locked portion 35a may be able to come into contact with, for example, a protrusion formed on the inner circumferential surface of the inner plug peripheral wall portion 27 from below the protrusion.

The head main body 34 is formed into a cylindrical shape having a top wall 34a. The top wall portion 34a covers the entire frame 33 including the upper end opening of the frame 33 from above. A discharge hole 30 penetrating vertically is formed in the top wall portion 34a. The discharge hole 30 is formed in the center of the top wall portion 34a. The upper surface of the top wall portion 34a is formed in a concave curved shape that extends downward toward the discharge hole 30. An on-off valve 39 is fitted in the discharge hole 30 to allow flow from below to above the top wall portion 34a through the discharge hole 30 and to prevent flow in the opposite direction. Note that the on-off valve 39 may not be provided.
The head main body 34 has a fitting tube 41, a male thread tube 42, and an operation tube 38.

The fitting tube 41 protrudes downward from the opening peripheral edge of the discharge hole 30 on the lower surface of the top wall portion 34a. The fitting tube 41 is inserted into the cylinder tube 31.
A male threaded portion is formed on the outer peripheral surface of the male threaded cylinder 42 . The male threaded tube 42 protrudes downward from the top wall portion 34a and is located radially outside the guide tube 32 of the inner plug member 12. The lower end of the male threaded cylinder 42 is located below the upper end of the guide cylinder 32 and above the upper surface of the inner stopper bottom wall 28. The male threaded tube 42 is removably screwed into the female threaded tube 36 of the frame 33. The directions of the screws in the male threaded tube 42 and the female threaded tube 36, and in the mouth portion 25 of the container body 21 and the locking tube 22 are reversed left and right. Note that these screws may be oriented in the same direction on the left and right sides.
The operating tube 38 is located radially outside the male threaded tube 42 and the female threaded tube 36. The operating tube 38 protrudes downward from the outer peripheral edge of the top wall 34a, and is rotatably fitted onto the upper end of the outer tube 35 of the frame 33. The operation tube 38 is located above the container body 11 and the inner plug member 12, and has an outer peripheral surface exposed to the outside. On the outer circumferential surface of the operation tube 38, vertical ribs for preventing slipping are provided in a row in the circumferential direction and extend in the vertical direction. Note that the operation barrel 38 may not be provided.

A biasing member 40 and a pump mechanism 45 are provided between the push-down head 13 and the inner plug member 12.

The biasing member 40 is a metal coil spring, and is disposed coaxially with the common axis O. The biasing member 40 is inserted between the inner circumferential surface of the male threaded tube 42 of the push-down head 13 and the outer circumferential surface of the guide tube 32 of the inner plug member 12. The biasing member 40 is in contact with or close to the inner circumferential surface of the male threaded tube 42 and the outer circumferential surface of the guide tube 32. The upper end of the biasing member 40 is supported by the lower surface of the top wall 34a, and the lower end of the biasing member 40 is supported by the upper surface of the inner plug bottom wall 28. The biasing member 40 biases the push-down head 13 upward.
The pump mechanism 45 includes a piston 46, a piston guide 47, and a discharge valve 48.

The piston 46 is formed into a cylindrical shape and is disposed coaxially with the common axis O. The piston 46 is fitted into the cylinder tube 31 so as to be vertically slidable. A vertical gap is provided between the piston 46 and the lower end opening edge of the fitting tube 41 of the push-down head 13. The piston 46 is in contact with a piston holder 37 that is fitted and fixed within the upper end of the cylinder tube 31 from above the piston 46 . This restricts further upward movement of the piston 46.

The piston guide 47 is formed into a cylindrical shape with a bottom, and is inserted into the piston 46. A radial gap is provided between the outer peripheral surface of the piston guide 47 and the inner peripheral surface of the piston 46. In the piston guide 47, a plurality of communicating holes 47b are formed at intervals in the circumferential direction, penetrating in the radial direction, in a portion radially facing the inner circumferential surface of the piston 46.

The piston guide 47 is fitted into the fitting tube 41 of the push-down head 13 , and a lower portion thereof projects downward from the fitting tube 41 and the piston 46 . A flange-shaped contact portion 47a that protrudes radially outward is formed at the lower portion of the piston guide 47. The contact portion 47a is in contact with the piston 46 such that it can be separated from below the piston 46. The piston 46 is vertically sandwiched between the contact portion 47a and the piston presser 37. This restricts further upward movement of the push-down head 13.

The discharge valve 48 is provided in the lower end of the cylinder tube 31, allows flow from inside the container body 11 to the inside of the cylinder tube 31 through the communication hole 29, and prevents flow in the opposite direction. The discharge valve 48 is seated on the upper surface of the inner stopper bottom wall 28 in a portion located between the communication hole 29 and the cylinder tube 31 so as to be able to move upwardly. The discharge valve 48 is a three-point valve. As the discharge valve 48, for example, a one-point valve or the like may be adopted.

In the above configuration, when the push-down head 13 is pressed down against the upward biasing force of the biasing member 40, the piston guide 47 descends with respect to the piston 46 and the cylinder tube 31, and the contact portion 47a moves away from the piston 46. A space between the inner peripheral surface of the piston 46 and the outer peripheral surface of the piston guide 47 is defined by a portion of the cylinder tube 31 located below the piston guide 47 and a communicating hole 47b that are spaced apart from each other. communicate through. At this time, the lower end opening edge of the fitting tube 41 abuts against the piston 46, so if the push-down head 13 continues to be pressed down, the piston 46 also descends within the cylinder tube 31. As a result, the contents of the portion of the cylinder tube 31 located below the piston guide 47 are pressurized, and the gap between the inner circumferential surface of the piston 46 and the outer circumferential surface of the piston guide 47 is increased. It passes through the hole 47b and the piston guide 47, reaches the discharge hole 30, opens the on-off valve 39, and is discharged from the discharge hole 30 onto the top wall 34a. During this process, the discharge valve 48 remains seated on the upper surface of the inner stopper bottom wall 28 at a portion located between the communication hole 29 and the cylinder tube 31, and the inside of the cylinder tube 31 and the communication hole 29 are in a state of being seated. communication is cut off.

Next, when the push-down of the push-down head 13 is released, the piston guide 47 rises together with the push-down head 13 due to the upward biasing force of the biasing member 40, the contact portion 47a contacts the piston 46, and inside the cylinder tube 31, Communication between the portion located below the piston guide 47 and the communication hole 47b is cut off. Thereafter, when the piston 46 moves upward together with the piston guide 47, a negative pressure is applied to the portion of the cylinder tube 31 located below the piston guide 47, and the discharge valve 48 is opened to the upper surface of the inner stopper bottom wall 28. , is separated upward from a portion located between the communication hole 29 and the cylinder tube 31, and the inside of the cylinder tube 31 and the communication hole 29 communicate with each other. At this time, the contents in the container body 11 pass through the communication hole 29 and flow into the cylinder tube 31, and accordingly, the inner plate 23 slides upward in the container body 21.

As described above, according to the discharge container 1 according to the present embodiment, the push-down head 13 is detached from the frame body 33 and the frame body 33 whose upward disengagement from the container body 11 and the inner plug member 12 is restricted. Since the push-down head 13 is provided with a head body 34 that can be disposed so that the contents can be used, the head body 34 can be removed from the frame body 33 when the contents are used up, as shown in FIG. Since the inside is opened to the outside, the biasing member 40 whose upper end is supported by the push-down head 13 can be easily removed. Thereby, it becomes possible to easily separate the biasing member 40 from other constituent members, and it is possible to respond to reductions in environmental load, improvement in waste processing efficiency, and the like.

Since the head main body 34 includes an operating tube 38 whose outer peripheral surface is exposed to the outside, the head main body 34 can be easily removed from the frame 33 by operating the operating tube 38 when the contents have been used. can do.
In the illustrated example, when detaching the head body 34 from the frame body 33, the operation cylinder 38 is grasped and the head body 34 is moved between the male thread cylinder 42 and the female thread cylinder 36 with respect to the frame body 33 and the container body 11. Rotate it to the loose side along the circumferential direction.

Since the upper end portion of the biasing member 40 is supported by the lower surface of the top wall portion 34a of the head body 34, when the head body 34 is separated from the frame body 33, the biasing member At least the upper end portion of the biasing member 40 is exposed to the outside, and the biasing member 40 can be easily removed.

Note that the technical scope of the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention.

The head main body 34 may be provided inside the frame 33, and the upper ends of the outer cylinder 35 and the female threaded cylinder 36 may be exposed to the outside.
For example, the head body 34 may be removably fitted to the frame 33 instead of being screwed onto the frame 33.
The upper end of the biasing member 40 may be supported by, for example, the frame 33 or the male threaded cylinder 42.

In addition, without departing from the spirit of the present invention, the components in the embodiments described above may be replaced with well-known components, and the embodiments and modified examples may be combined as appropriate.

1 Discharge container 11 Container body 12 Inner stopper member 13 Push-down head 22 Locking tube (mouth of container body)
25 Mouth of container body (mouth of container body)
29 Communication hole 30 Discharge hole 33 Frame body 34 Head main body 34a Top wall portion 38 Operation cylinder 40 Biasing member 45 Pump mechanism

Claims (3)

a container body in which the contents are housed;
an inner plug member that is attached to the mouth of the container body and has a communication hole that communicates with the inside of the container body;
a press-down head that covers the inner plug member from above the inner plug member, is provided so as to be movable downward in an upwardly biased state, and is formed with a discharge hole that can communicate with the communication hole;
between the push-down head and the inner plug member,
a biasing member whose upper end is supported by the push-down head and urges the push-down head upward;
When the push-down head is pressed down, the contents that have passed through the communication hole are discharged from the discharge hole, and when this press is released, the contents inside the container body are caused to pass through the communication hole toward the discharge hole side. A pump mechanism is provided,
The pressing head is
a frame body that is regulated from upwardly detaching from the container body and the inner plug member;
A discharge container, comprising: a head main body that closes the inside of the frame and is removably provided on the frame. The discharge container according to claim 1, wherein the head main body includes an operation tube whose outer peripheral surface is exposed to the outside. The head main body is formed in a capped cylinder shape having a top wall portion,
The discharge container according to claim 1 or 2, wherein a lower surface of the top wall supports an upper end of the biasing member.

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