JP6961210B2 - Cap and discharge container - Google Patents

Description

The present invention relates to a cap and a discharge container that open and close by pressure in the container.

Conventionally, as a discharge container for discharging the contained contents, a container body having a highly flexible inner container and an outer container in which the inner container is built, and a check valve and a check valve attached to the mouth of the container body. A configuration is known to include a cap with a discharge nozzle. Such a discharge container is a so-called double container, which has an intake valve in the outer container, and the inner container is compressed by the deformation of the outer container due to the pressing force, and the contents are discharged from the discharge nozzle.

Further, in the discharge container, air is supplied from the intake valve between the outer container and the inner container by restoring the outer container after discharging the contents. As a result, the discharge container suppresses the restoration of the inner container as much as possible and prevents air from entering the inner container. Further, in the discharge container, the lid provided on the cap is closed, and the sealing ring provided on the inner surface of the lid and the opening of the discharge nozzle are fitted to seal the inner container.

However, in such a discharge container, when the check valve of the discharge nozzle is closed after discharging the contents, the contents remain in the discharge nozzle, and the remaining contents remain at the tip of the discharge nozzle, and the tip thereof. There was a risk of dripping. Further, if the sealing ring is fitted with the discharge port of the discharge nozzle when the lid is closed, the remaining contents located at the discharge port may overflow and the inside of the cap may be contaminated.

Therefore, there is known a discharge container that suppresses the leakage of the contents remaining in the discharge nozzle after the contents are discharged (see, for example, Patent Document 1). This discharge container is provided with a valve seat in which the valve body of the check valve comes into contact with the discharge nozzle, and a flow groove for allowing the flow of contents is provided in the valve seat. The remaining contents are returned from the distribution groove into the inner container. As a result, the discharge container suppresses dripping and dirt on the cap due to the contents remaining in the discharge nozzle.

Japanese Unexamined Patent Publication No. 2015-155333

However, the above-mentioned discharge container has the following problems.
If the viscosity of the contents is high, the contents remaining in the inner plug member cannot be returned from the distribution groove into the inner container, and the contents may drip from the opening of the discharge nozzle. Further, in this discharge container, if the sealing ring is fitted with the discharge port of the discharge nozzle when the lid is closed, the contents remaining in the discharge port may overflow and the inside of the cap may become dirty.
Further, when the viscosity of the contents is low, the inside of the inner container and the discharge nozzle communicate with each other through the flow groove, so that the contents remaining in the inner plug member are sucked into the inner container from the flow groove. After that, the outside air may infiltrate into the inner container and promote the oxidation of the contents.
Further, in this discharge container, since the flow groove is provided between the valve body and the valve seat, the opening of the discharge nozzle and the flow groove are close to each other. Therefore, when the discharge container is tilted so that the discharge nozzle is directed downward, the contents of the inner container may drip from the opening of the discharge nozzle from the distribution groove.

Therefore, an object of the present invention is to provide a cap and a discharge container capable of preventing dripping during use.

According to one aspect of the present invention, the cap is a cap provided at the mouth of a container body that accommodates the contents and is deformed by pressing pressure, and is a tubular inner cylinder and the inner cylinder. A discharge nozzle provided at one end, including a bottom wall having a flow port, a nozzle portion that covers the base portion and discharges the contents, and forms a valve chamber between the base portion and the discharge nozzle. Provided in the valve chamber, the valve chamber is divided into the nozzle portion side and the bottom wall side, and when the pressure in the container body becomes higher than the pressure on the nozzle portion side of the valve chamber, the nozzle portion side is reached. It moves to increase the volume of the valve chamber on the bottom wall side, and continues the flow path between the container body and the valve chamber through the flow port, so that the pressure on the nozzle portion side of the valve chamber is increased. When the pressure becomes higher than the pressure inside the container body, the check valve provided in the valve chamber blocks the flow path and moves to the bottom wall side to increase the volume of the nozzle portion side of the valve chamber. And.

According to the present invention, it is possible to provide a cap and a discharge container capable of preventing dripping and dirt in the cap during use and reducing oxidation of the contents.

The cross-sectional view which shows the structure of the discharge container which concerns on 1st Embodiment of this invention. The cross-sectional view which shows the structure of the cap used for the discharge container. The cross-sectional view which shows the structure of the cap. The cross-sectional view which shows the structure of the cap. The cross-sectional view which shows the structure of the discharge container which concerns on 2nd Embodiment of this invention. The cross-sectional view which shows the structure of the discharge container which concerns on 3rd Embodiment of this invention. The cross-sectional view which shows the structure of the discharge container which concerns on 4th Embodiment of this invention. The cross-sectional view which shows the structure of the discharge container which concerns on 5th Embodiment of this invention. The cross-sectional view which shows the structure of the discharge container which concerns on 6th Embodiment of this invention.

(First Embodiment)
Hereinafter, the configuration of the discharge container 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.
FIG. 1 is a cross-sectional view showing the configuration of a discharge container 1 according to the first embodiment of the present invention, and FIG. 2 is a configuration of a cap 11 used for the discharge container 1 and shows a state in which the content 100 is discharged. A cross-sectional view, FIG. 3 is a cross-sectional view showing the configuration of the cap 11 after discharging the content 100, and FIG. 4 is a configuration of the cap 11 and shows the liquid after discharging the content 100. It is sectional drawing which shows the state at the time of pulling.

As shown in FIG. 1, the discharge container 1 includes a container body 10 and a cap 11. The discharge container 1 is configured so that an appropriate amount of the content 100 can be discharged by accommodating the liquid content 100 in the container body 10 and deforming the container body 10 by applying a pressing force.
Here, the content 100 is, for example, a liquid substance such as edible oil such as soy sauce, olive oil or salad oil, ponzu sauce, sauce, soup stock, lotion, shampoo and conditioner. In the following description, as the content 100, soy sauce and cooking oil, which are easily oxidized when exposed to air, will be described as an example.

The container body 10 is formed in a bottomed cylindrical shape in which the cap 11 is fixed to the open end. The container body 10 is, for example, a so-called double container that can be peeled off. The container body 10 is composed of, for example, an exterior by multi-layer blow molding and an interior that is detachably laminated on the inner surface thereof. Specifically, the container body 10 includes a bottomed cylindrical outer container 21 and a bag-shaped inner container 22 that is integrally provided in the outer container 21 and partially peeled from the outer container 21. I have.

The container body 10 includes a bottomed cylindrical body portion 31 and a tubular mouth portion 32 provided continuously and integrally with the body portion 31. Further, the container body 10 includes an intake valve 33.

The mouth portion 32 is continuously and integrally provided at the end portion of the body portion 31. The mouth portion 32 is formed in the middle portion and is composed of a first protruding portion 32a that projects outward in an annular shape and a body portion 31 slightly closer to the end portion, and protrudes inward in an annular shape toward the center. It has a second protrusion 32b and the like.

The intake valve 33 is configured so that intake air can be taken between the outer container 21 and the inner container 22. That is, the intake valve 33 opens when the pressure between the body portion 31 and the inner container 22 becomes a negative pressure lower than the atmospheric pressure to supply air to the space between the body portion 31 and the inner container 22. ..

The outer container 21 is formed of, for example, a resin material such as polyethylene or polypropylene. The outer container 21 is configured to be elastically deformable by pressing pressure.

The inner container 22 is made of a resin material that is incompatible with the resin material constituting the outer container 21. The inner container 22 is thinner than the outer container 21 and has high flexibility. The inner container 22 is formed in a bag shape and is configured to be capable of accommodating the content 100.

The cap 11 includes a cap main body 41 and a lid body 43 connected to the cap main body 41 via a hinge 42. In the cap 11, a part of the cap body 41, a hinge 42 and a lid 43 are integrally formed by injection molding.

The cap body 41 includes a base 51 fixed to the mouth 32, a discharge nozzle 52 provided on the base 51, and a check valve 53 provided between the base 51 and the discharge nozzle 52. Further, the cap body 41 has a valve chamber 54 between the base 51 and the discharge nozzle 52, which can accommodate the check valve 53 and allows the check valve 53 to move.

The base 51 is integrally molded with the hinge 42 and the lid 43. The base 51, the hinge 42 and the lid 43 are made of, for example, polypropylene. The base 51 is formed by forming a cylindrical outer cylinder 61, an inner cylinder 62 having an outer diameter smaller than the inner diameter of the outer cylinder 61, and one end of the outer cylinder 61 and the inner cylinder 62 in a continuous annular shape. A plate-shaped wall portion 63, a plate-shaped bottom wall 64 provided at the other end of the inner cylinder 62, and a tubular shape erected in the axial direction from the inner peripheral edge of the bottom wall 64. The guide unit 65 and the above are provided.

The inner diameter of the outer cylinder 61 is substantially the same as the outer diameter of the first protrusion 32a of the mouth portion 32. The outer cylinder 61 has an annular protrusion 61a that engages with the first protrusion 32a on the inner peripheral surface on the end side to be opened. The inner cylinder 62 has an annular recess 62a on the inner peripheral surface on the wall portion 63 side. The inner peripheral surface of the inner cylinder 62 constitutes the valve seat of the check valve 53.

The wall portion 63 has an annular protrusion 63a on the main surface between the outer cylinder 61 and the inner cylinder 62. The annular protrusion 63a has an inner diameter substantially the same as the outer diameter of the end portion of the mouth portion 32. The wall portion 63 has a hinge 42 provided on a part of the outer peripheral edge, more specifically, on a part of the ridge portion with the outer peripheral surface of the outer cylinder 61. Further, the wall portion 63 has a protruding engaging portion 63b. The engaging portion 63b is, for example, a protrusion that is provided at least symmetrically with the hinge 42 and projects axially from the main surface of the wall portion 63 and its tip portion projects outward in the radial direction.

The bottom wall 64 is formed in an annular shape. The bottom wall 64 has an opening 64a provided in the center in the radial direction and a plurality of distribution ports 64b provided in the circumferential direction.

The guide portion 65 is the main surface of the bottom wall 64 on the discharge nozzle 52 side, and is provided in the opening 64a of the bottom wall 64.

The discharge nozzle 52 includes a top wall portion 71 having an open center, a cylindrical nozzle portion 72 provided at the opening center of both main surfaces of the top wall portion 71, and an outer circumference of the other main surface of the top wall portion 71. It is provided with a tubular portion 73 provided on the veranda side. The discharge nozzle 52 is made of, for example, polyethylene.

The outer diameter of the top wall portion 71 is configured to be larger than the inner diameter of the inner cylinder 62. The top wall portion 71 covers the inner cylinder 62 to form a valve chamber 54 between the inner cylinder 62 and the bottom wall 64. The opening at the tip of the nozzle portion 72 constitutes the discharge port of the content 100 of the cap 11. Further, the rear end of the nozzle portion 72 protrudes from the top wall portion 71 and is arranged in the valve chamber 54.

The outer diameter of the cylinder portion 73 is smaller than the outer diameter of the top wall portion 71, and is configured to have substantially the same diameter as the inner diameter of the inner cylinder portion 62. The tubular portion 73 has an annular convex portion 73a on the outer peripheral surface that engages with the concave portion 62a of the inner cylinder 62.

As shown in FIGS. 1 to 4, the check valve 53 includes a moving body 81 formed in a bottomed cylindrical shape and an annular lip provided on the outer peripheral surface of the moving body 81 on one end side to be closed. It includes 82 and a plurality of protrusions 83 provided on the end face of the other end of the moving body 81 that opens. The check valve 53 is made of, for example, polyethylene. The check valve 53 has a length from the main surface of the bottom portion 81b, which will be described later, located inside the moving body 81 in the axial direction to the end surface of the protrusion 83, from the top wall portion 71 of the nozzle portion 72 to the rear end. It is composed longer than the one. The check valve 53 divides the valve chamber 54 into the nozzle portion 72 side and the bottom wall 64 side, and moves in the axial direction to increase or decrease the volume of the valve chamber 54 on the nozzle portion 72 side and the bottom wall 64 side.

The moving body 81 has a tubular body portion 81a and a bottom portion 81b integrally provided at one end of the body portion 81a. Further, the moving body 81 has a cylindrical recess 81c into which the guide portion 65 is inserted on the end surface of the body portion 81a on the bottom portion 81b side. In other words, the body portion 81a is formed in a double tubular shape by the recess 81c. The depth of the recess 81c is substantially the same as the length from the bottom wall 64 of the base 51 of the cap body 41 to the tip of the guide portion 65. Further, the radial width of the recess 81c is configured to be the same as or slightly larger than the radial width of the guide portion 65. The moving body 81 moves in the axial direction along the guide portion 65. That is, when the pressure inside the inner container 22 of the moving body 81 becomes higher than the pressure of the valve chamber 54, in other words, the pressure becomes higher than the atmospheric pressure, and the pressure at which the check valve 53 initially moves is applied, the guide portion 65 When the pressure in the valve chamber 54 becomes higher than the pressure in the inner container 22, the pressure in the valve chamber 54 moves toward the bottom wall 64 of the base 51 along the guide portion 65. Here, the pressure in the valve chamber 54 is the pressure on the nozzle portion 72 side of the valve chamber 54 when the inside of the valve chamber 54 is divided into the nozzle portion 72 side and the bottom wall 64 side by the check valve 53.

The lip 82 is on the other end side and extends outward. The lip 82 is thinner than the moving body 81 and the protrusion 83, and has a thickness that deforms when pressure is applied. The tip of the lip 82 comes into contact with the inner peripheral surface of the inner cylinder 62. The lip 82 abuts on the inner peripheral surface of the inner cylinder 62 to block and seal the valve chamber 54 and the inner container 22 continuous with the distribution port 64b of the bottom wall 64. In the lip 82, when the pressure inside the inner container 22 becomes higher than the pressure on the nozzle portion 72 side of the valve chamber 54, in other words, becomes higher than the atmospheric pressure, and the pressure at which the check valve 53 initially moves is applied. The inner container 22 and the valve chamber 54 are made continuous by moving in a direction away from the wall portion 63. That is, the lip 82 is a valve, and by opening and closing, the flow path of the content 100 between the inner container 22 and the nozzle portion 72 via the valve chamber 54 is continuously and blocked.

The plurality of protrusions 83 are arranged at equal intervals on the end faces of the other ends of the body portion 81a of the moving body 81. When the moving body 81 moves toward the discharge nozzle 52, the plurality of protrusions 83 come into contact with the top wall portion 71 of the discharge nozzle 52. That is, the plurality of protrusions 83 restrict the movement of the check valve 53 by abutting on the top wall 71, and the content 100 is located between the top wall 71, the body 81a, and the adjacent protrusions 83. Consists of the flow path of.

The lid body 43 is integrally formed with the cap body 41 via a hinge 42. The lid 43 is formed in a bottomed tubular shape. The lid 43 is provided on the inner peripheral surface, and is provided on the convex engaged portion 43a that engages with the engaging portion 63b and the main surface facing the discharge nozzle 52, and is a sealing ring that closes the nozzle portion 72. It has 43b and. The sealing ring 43b is formed in a cylindrical shape, and its outer diameter is substantially the same as the inner diameter of the nozzle portion 72.

Next, a method of using the discharge container 1 configured in this way will be described.
First, in the discharge container 1 filled with the contents 100, for example, the container body 10 is stored in an upright posture and the cap 11 is stored in an upright posture. At the time of use, that is, when the content 100 is discharged, the user first grasps the discharge container 1, opens the lid 43, and directs the nozzle portion 72 to the discharge destination. As a result, the discharge container 1 is tilted so that the nozzle portion 72 is downward. Next, the user presses the outer container 21 while discharging the content 100, and applies a pressing force to the outer container 21.

As a result, the outer container 21 is elastically deformed, and as the outer container 21 is elastically deformed, a pressing force is directly applied to the inner container 22 by the outer container 21, or the space between the outer container 21 and the inner container 22 is formed. The air is compressed and a pressing force is applied to the inner container 22. As a result, the inner container 22 is elastically deformed, and the pressure inside the inner container 22 increases. When the pressure inside the inner container 22 becomes higher than the atmospheric pressure, as shown by the arrow of the alternate long and short dash line in FIG. 2, the moving body 81 is pressed against the content 100 until the protrusion 83 comes into contact with the top wall 71. Moving. Further, the lip 82 is pressed against the content 100 and is separated from the inner peripheral surface of the inner cylinder 62. As a result, as shown by the solid arrow in FIG. 2, the content 100 in the inner container 22 passes between the distribution port 64b, the top wall portion 71, the body portion 81a, and the adjacent protrusions 83, and the nozzle portion 72. And is discharged from the nozzle portion 72. When the content 100 is discharged from the nozzle portion 72, the volume of the inner container 22 is reduced by the volume of the discharged content 100.

Next, the user releases the pressing of the outer container 21 after discharging the desired content 100. By releasing the pressure on the outer container 21, the shape of the outer container 21 is restored, and the space between the outer container 21 and the inner container 22 becomes a negative pressure. Therefore, as shown in FIG. 3, the lip 82 is restored to its original shape by its own restoring force and comes into contact with the inner peripheral surface of the inner cylinder 62. Further, air is sucked from the intake valve 33 of the outer container 21 into the space between the outer container 21 and the inner container 22. As a result, the shape of the inner container 22, in other words, the volume of the inner container 22 is maintained at substantially the same volume, strictly speaking, the volume of the inner container 22 is slightly increased due to the slight restoration of the inner container 22. The air pressure and the pressure in the space between the outer container 21 and the inner container 22 are substantially the same.

Here, the slight restoration of the inner container 22 is performed from the intake valve 33 to the outer container 21 with respect to the restoring force of the inner container 22 itself and the restoration speed of the outer container 21 at the time of restoration of the outer container 21. It is caused by a phenomenon that the intake air to the space between the inner container 22 cannot catch up.

Due to the slight restoration of the inner container 22, the inner container 22 becomes more negative than the atmospheric pressure, so that the moving body 81 is moved to the bottom wall 64 side of the base 51 as shown by the arrow of the alternate long and short dash line in FIG. Moving. The moving body 81 moves until it comes into contact with the bottom wall 64 at the maximum. At this time, since the pressure on the nozzle portion 72 side in the valve chamber 54 is higher than the pressure in the inner container 22, the lip 82 is pressed in the direction of contacting the inner peripheral surface of the inner cylinder 62, and becomes the inner cylinder 62. The contact state is maintained. The movement of the moving body 81 increases the volume of the valve chamber 54 on the nozzle portion 72 side. Therefore, as shown by the solid arrow in FIG. 4, the content 100 in the nozzle portion 72 is sucked into the valve chamber 54 until the movement of the moving body 81 is completed, and the inner container is more than the tip of the nozzle portion 72. The liquid level of the remaining content 100 drops on the 22 side.

According to the discharge container 1 configured in this way, the shape of the inner container 22 is slightly restored as the outer container 21 is restored after the content 100 is discharged, so that the inner container 22 becomes a negative pressure, and vice versa. The check valve 53 moves. Since the volume of the valve chamber 54 on the nozzle portion 72 side increases due to the movement of the check valve 53 toward the bottom wall 64, the content 100 remaining in the nozzle portion 72 is the volume of the valve chamber 54 on the nozzle portion 72 side. By the amount of increase, it is returned to the valve chamber and the liquid level drops. Since the liquid level of the content 100 drops from the tip of the nozzle portion 72, the content 100 does not remain at the tip of the nozzle portion 72. Therefore, the discharge container is such that the nozzle portion 72 faces downward at the next use. Even if 1 is tilted, it is possible to prevent the contents from dripping from the nozzle portion 72. That is, the discharge container 1 can prevent dripping during use.

Further, since the nozzle portion 72 has a configuration in which it projects in the directions of both main surfaces of the top wall portion 71, as shown in FIG. 4, a part of the flow path of the content 100 extends upward in the direction of gravity. Therefore, when the discharge container 1 is tilted, the movement of the content 100 in the valve chamber 54 is hindered by the flow path. Therefore, even if the discharge container 1 is tilted so that the nozzle portion 72 faces downward. , It is possible to prevent the contents from dripping from the nozzle portion 72 as much as possible.

Further, since the inner container 22 of the discharge container 1 is hermetically sealed by the check valve 53, air can enter the inner container 22 side from the distribution port 64b when the content 100 is discharged or stored. Can be prevented.

As described above, according to the discharge container 1 using the cap 11 according to the first embodiment of the present invention, it is possible to prevent dripping and contamination inside the cap during use. In addition, it is possible to prevent air from entering the inner container 22 side when the content 100 is discharged or stored. Therefore, for example, when the content 100 is soy sauce or cooking oil, it is possible to prevent the content 100 from being oxidized.

(Second Embodiment)
Next, the configuration of the discharge container 1A according to the second embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a cross-sectional view showing the configuration of the discharge container 1A according to the second embodiment of the present invention. Of the configurations of the discharge container 1A according to the second embodiment, the same reference numerals are given to the configurations equivalent to the configurations of the discharge container 1 according to the first embodiment described above, and detailed description thereof will be given. Omit.

As shown in FIG. 5, the discharge container 1A includes a container body 10 and a cap 11A. The discharge container 1A is configured so that an appropriate amount of the content 100 can be discharged by accommodating the liquid content 100 in the container body 10 and deforming the container body 10 by applying a pressing force.

The cap 11A includes a cap main body 41A and a lid body 43 connected to the cap main body 41A via a hinge 42. In the cap 11A, a part of the cap body 41A, a hinge 42 and a lid 43 are integrally formed by injection molding.

The cap body 41A includes a base portion 51A fixed to the mouth portion 32, a discharge nozzle 52A provided on the base portion 51A, and a check valve 53A provided between the base portion 51A and the discharge nozzle 52A. Further, the cap body 41A has a valve chamber 54 that can accommodate the check valve 53A and can move the check valve 53A between the base 51A and the discharge nozzle 52A.

The base 51A is integrally molded with the hinge 42 and the lid 43. The base 51A, the hinge 42 and the lid 43 are made of, for example, polypropylene. The base portion 51A includes an outer cylinder 61, an inner cylinder 62, a wall portion 63, a bottom wall 64, a guide portion 65, and an engaging portion that protrudes in the radial direction provided on the inner peripheral surface of the tip of the guide portion 65. It has 66 and. The engaging portion 66 is a protrusion that projects in an annular shape toward the axial center of the base portion 51A.

The discharge nozzle 52A includes a top wall portion 71, a tubular nozzle portion 72A provided at the center of the opening of the main surface of the top wall portion 71 facing the lid 43, and a cylinder portion 73. The discharge nozzle 52A is made of, for example, polyethylene.

The opening at the tip of the nozzle portion 72A constitutes the discharge port of the content 100 of the cap 11.

The check valve 53A includes a moving body 81A formed in a bottomed cylindrical shape, an annular lip 82 provided on the outer peripheral surface of the moving body 81 on one end side of the opening, and the other end of the moving body 81A. A plurality of protrusions 84 provided on an end surface facing the inner container 22 of the portion are provided. The check valve 53A is made of, for example, polyethylene. The check valve 53A divides the valve chamber 54 into the nozzle portion 72A side and the bottom wall 64 side, and moves in the axial direction to increase or decrease the volume of the valve chamber 54 on the nozzle portion 72A side and the bottom wall 64 side.

The moving body 81A has a tubular body portion 81a and a bottom portion 81b integrally provided at one end of the body portion 81a. The inner diameter of the body portion 81a is configured to be larger than the outer diameter of the guide portion 65. The bottom portion 81b is provided at the end portion of the body portion 81a on the discharge nozzle 52 side. That is, the moving body 81A covers the opening at the tip of the guide portion 65 by the body portion 81a and the bottom portion 81b.

A plurality of protrusions 84 are intermittently arranged in a circular shape on the main surface of the bottom 81b on the inner container 22 side. The protrusion 84 has an engaged portion 84a at its tip that engages with an engaging portion 66 provided on the inner peripheral surface of the tip of the guide portion 65.

In the discharge container 1A configured in this way, similarly to the discharge container 1 described above, the pressure inside the inner container 22 becomes higher than the atmospheric pressure, and the pressure at which the check valve 53A initially operates is applied to the moving body 81A. Then, the moving body 81A is pressed against the content 100 and moves until the engaged portion 84a comes into contact with the engaging portion 66, and the content 100 is discharged from the discharge nozzle 52.

Further, after the content 100 is discharged, the inner container 22 is slightly restored to a negative pressure higher than the atmospheric pressure, so that the moving body 81A moves to the bottom wall 64 side of the base 51A. At this time, the moving body 81A moves until it comes into contact with the bottom wall 64 at the maximum. A state in which the pressure on the nozzle portion 72A side in the valve chamber 54 becomes higher than the pressure in the inner container 22 and the lip 82 is pressed in the direction of contacting the inner peripheral surface of the inner cylinder 62 and in contact with the inner cylinder 62. Is maintained. The movement of the moving body 81 increases the volume of the valve chamber 54. Therefore, until the movement of the moving body 81 is completed, the content 100 in the nozzle portion 72A is sucked into the valve chamber 54, and the liquid of the remaining content 100 is sucked into the inner container 22 side from the tip of the nozzle portion 72A. The surface goes down. As a result, the discharge container 1A can prevent the content 100 from dripping at the next use, prevent the inside of the cap from becoming dirty, and reduce the oxidation of the content 100, similarly to the discharge container 1 described above.

The present invention is not limited to the discharge containers 1 and 1A according to the above-described embodiment. For example, as in the discharge container 1B according to the third embodiment shown in FIG. 6, the discharge nozzle 52B has the nozzle portion 72A, and the bottom wall 64 of the base 51 is used to further reduce the check valve 53. Alternatively, a tubular inner wall portion 67 constituting the valve chamber 54 may be provided between the inner cylinder 62 and the guide portion 65. With such a configuration, the volume of the valve chamber 54 can be reduced, so that the content 100 remaining in the valve chamber 54 can be reduced as much as possible. The tip of the inner wall portion 67 preferably comes into close contact with the top wall portion 71 of the discharge nozzle 52B in order to form the valve chamber 54. It is more preferable that the top wall portion 71 has an annular protrusion 71a for being in close contact with the inner wall portion 67 on the top wall portion 71.

Further, the present invention may have a configuration like the discharge container 1C according to the fourth embodiment shown in FIG. 7. FIG. 7 is a cross-sectional view showing the configuration of the discharge container 1C according to the fourth embodiment of the present invention. Of the configurations of the discharge container 1C according to the fourth embodiment, the same reference numerals are given to the configurations equivalent to the configurations of the discharge container 1 according to the first embodiment described above, and detailed description thereof will be given. Omit.

As shown in FIG. 7, the discharge container 1C includes a container body 10 and a cap 11C. The discharge container 1C is configured so that an appropriate amount of the content 100 can be discharged by accommodating the liquid content 100 in the container body 10 and deforming the container body 10 by applying a pressing force.

The cap 11C includes a cap body 41C and a lid body 43 connected to the cap body 41C via a hinge 42. In the cap 11C, a part of the cap body 41C, a hinge 42 and a lid 43 are integrally formed by injection molding.

The base 51C is integrally molded with the hinge 42 and the lid 43. The base 51C is formed by forming a cylindrical outer cylinder 61, an inner cylinder 62 having an outer diameter smaller than the inner diameter of the outer cylinder 61, and one end of the outer cylinder 61 and the inner cylinder 62 in a continuous annular shape. A plate-shaped wall portion 63, a plate-shaped bottom wall 64C provided at the other end of the inner cylinder 62, and a shaft of the inner cylinder 62 provided on the main surface of the bottom wall 64C on the discharge nozzle 52 side. It is provided with a cylindrical guide portion 65 that is erected along the direction.

The bottom wall 64C is formed in a plate shape. The bottom wall 64C faces the bottom 81b of the moving body 81. Further, the bottom wall 64C has a plurality of distribution ports 64b in the circumferential direction.

In the discharge container 1C configured in this way, similarly to the discharge container 1 described above, the pressure inside the inner container 22 becomes higher than the atmospheric pressure, and the pressure at which the check valve 53 initially operates is applied to the moving body 81. Then, the moving body 81 is pressed by the content 100 and moves until the protrusion 83 comes into contact with the top wall 71. Further, the lip 82 is pressed against the content 100 and is separated from the inner peripheral surface of the inner cylinder 62. As a result, the content 100 in the inner container 22 moves from the distribution port 64b through the top wall portion 71, the body portion 81a, and the protrusion 83 to the nozzle portion 72, and is discharged from the nozzle portion 72.
Further, since the discharge container 1C has the above-mentioned configuration, like the discharge container 1, it prevents dripping during the next use, prevents the inside of the cap from becoming dirty, and reduces the oxidation of the content 100. be able to.

Further, the present invention can also have a configuration like the discharge container 1D according to the fifth embodiment shown in FIG. FIG. 8 is a cross-sectional view showing the configuration of the discharge container 1D according to the fifth embodiment of the present invention. Of the configurations of the discharge container 1D according to the fifth embodiment, the same reference numerals are given to the configurations equivalent to the configurations of the discharge container 1 according to the first embodiment described above, and detailed description thereof will be given. Omit.

As shown in FIG. 8, the discharge container 1D includes a container body 10 and a cap 11D. The discharge container 1D is configured so that an appropriate amount of the content 100 can be discharged by accommodating the liquid content 100 in the container body 10 and deforming the container body 10 by applying a pressing force.

The cap 11D includes a cap body 41D and a lid body 43 connected to the cap body 41D via a hinge 42. In the cap 11D, a part of the cap body 41D, a hinge 42 and a lid 43 are integrally formed by injection molding.

The base 51D is integrally molded with the hinge 42 and the lid 43. The base 51D is formed by forming a cylindrical outer cylinder 61, an inner cylinder 62 having an outer diameter smaller than the inner diameter of the outer cylinder 61, and one end of the outer cylinder 61 and the inner cylinder 62 in a continuous annular shape. The plate-shaped wall portion 63, the plate-shaped bottom wall 64D provided at the other end of the inner cylinder 62, and the shaft of the inner cylinder 62 provided on the main surface of the bottom wall 64D on the discharge nozzle 52D side. It is provided with a cylindrical guide portion 65 that is erected along the direction.

The bottom wall 64D is formed in a plate shape. The bottom wall 64D faces the bottom 81b of the moving body 81. Further, the bottom wall 64D has a plurality of distribution ports 64b in the circumferential direction.

The discharge nozzle 52D has a top wall portion 71 having an open center, a cylindrical nozzle portion 72, a cylinder portion 73, and a bottom wall from the other main surface of the top wall portion 71 between the cylinder portion 73 and the nozzle portion 72. It includes a cylindrical protrusion 74 extending toward 64D.

The protrusions 74 are arranged in the valve chamber 54 at intervals outside the guide portion 65 and inside the cylinder portion 73. The protrusion 74 is configured to be able to regulate the axial movement of the check valve 53D. In this embodiment, the protrusion 74 is provided on the discharge nozzle 52D, but the present invention is not limited to this. For example, the protrusion 74 may extend from the moving body 81D toward the top wall 71.

The check valve 53D is provided on the annularly formed moving body 81D, the first lip 82Da provided on the outer peripheral side of the moving body 81D and in contact with the inner peripheral surface of the inner cylinder 62, and the inner peripheral side of the moving body 81D. A second lip 82Db, which is provided and comes into contact with the outer peripheral surface of the guide portion 65, is provided.

When the pressure inside the inner container 22 of the moving body 81D becomes higher than the atmospheric pressure and the pressure at which the check valve 53D initially moves is applied, the moving body 81D is directed toward the discharge nozzle 52D along the guide portion 65 and the inner cylinder 62. When the pressure moves in the axial direction and the pressure on the nozzle portion 72 side of the valve chamber 54 becomes higher than the pressure in the inner container 22, the pressure is axially directed toward the bottom wall 64D of the base 51 along the guide portion 65 and the inner cylinder 62. Moving.

The first lip 82Da is configured to be thinner than the moving body 81D, and is configured to have a thickness that deforms when pressure is applied. The first lip 82Da abuts on the inner cylinder 62 to block and seal the valve chamber 54 and the inner container 22 continuous with the distribution port 64b of the bottom wall 64D. When the pressure inside the inner container 22 is higher than the atmospheric pressure and the pressure at which the check valve 53D initially moves is applied, the first lip 82Da moves in a direction away from the inner cylinder 62, and the inner container 22 and the valve are separated from each other. The chamber 54 is made continuous. That is, the first lip 82Da is a valve, and by opening and closing, the flow path of the content 100 between the inner container 22 and the nozzle portion 72 via the valve chamber 54 is continuously and blocked.

The second lip 82Db is made thinner than the moving body 81D and has a thickness that deforms when pressure is applied. The second lip 82Db abuts on the guide portion 65 to block and seal the valve chamber 54 and the inner container 22 continuous with the distribution port 64b of the bottom wall 64D. When the pressure inside the inner container 22 is higher than the atmospheric pressure and the pressure at which the check valve 53D initially moves is applied, the second lip 82Db moves in a direction away from the guide portion 65, and the inner container 22 and the valve are separated from each other. The chamber 54 is made continuous. That is, the second lip 82Db is a valve, and by opening and closing, the flow path of the content 100 between the inner container 22 and the nozzle portion 72 via the valve chamber 54 is continuously and blocked.

According to the discharge container 1D configured in this way, similarly to the discharge container 1 described above, when the pressure inside the inner container 22 is higher than the atmospheric pressure and the pressure at which the check valve 53D is initially operated is applied, The moving body 81D is pressed by the content 100 and moves until the moving body 81D comes into contact with the protrusion 74. Further, the first lip 82Da and the second lip 82Db are pressed against the content 100 and separated from the inner peripheral surfaces of the inner cylinder 62 and the guide portion 65, respectively. As a result, the content 100 in the inner container 22 moves from the distribution port 64b through the top wall portion 71, the guide portion 65, and the protrusion portion 74 to the nozzle portion 72, and is discharged from the discharge nozzle 52D.
Further, since the discharge container 1D has the above-mentioned configuration, like the discharge container 1, it prevents dripping during the next use, prevents the inside of the cap from becoming dirty, and reduces the oxidation of the content 100. Can be done.

Further, the present invention can also have a configuration like the discharge container 1E according to the sixth embodiment shown in FIG. FIG. 9 is a cross-sectional view showing the configuration of the discharge container 1E according to the sixth embodiment of the present invention. Of the configurations of the discharge container 1E according to the sixth embodiment, the same reference numerals are given to the configurations equivalent to the configurations of the discharge container 1 according to the first embodiment described above, and detailed description thereof will be given. Omit.

As shown in FIG. 9, the discharge container 1E includes a container body 10 and a cap 11E. The discharge container 1E is configured so that an appropriate amount of the content 100 can be discharged by accommodating the liquid content 100 in the container body 10 and deforming the container body 10 by applying a pressing force.

The cap 11E includes a cap main body 41E and a lid body 43 connected to the cap main body 41E via a hinge 42. In the cap 11E, a part of the cap body 41E, a hinge 42 and a lid 43 are integrally formed by injection molding.

The cap body 41E includes a discharge nozzle 52E fixed to the mouth portion 32, a base 51E provided on the discharge nozzle 52E, and a check valve 53 provided between the discharge nozzle 52E and the base 51E. Further, the cap body 41E has a valve chamber 54 between the discharge nozzle 52E and the base 51E, which can accommodate the check valve 53 and allows the check valve 53 to move.

The discharge nozzle 52E is integrally molded with the hinge 42 and the lid 43. The discharge nozzle 52E, the hinge 42, and the lid 43 are made of polypropylene, for example. The discharge nozzle 52E includes a cylindrical outer cylinder 61, a top wall portion 71E having an opening at the center, a tubular nozzle portion 72 provided at the opening center on both main surfaces of the top wall portion 71E, and an outer cylinder 61. The outer diameter is smaller than the inner diameter of the top wall portion 71E, and a cylinder portion 73E provided on the other main surface of the top wall portion 71E and an annular protrusion 63a between the outer cylinder portion 61 and the cylinder portion 73E are provided. The tubular portion 73E has an annular recess 62a on the inner peripheral surface.

The base portion 51E includes an inner cylinder 62E having an outer diameter smaller than the inner diameter of the outer cylinder 61, a plate-shaped bottom wall 64E provided at the other end of the inner cylinder 62E, and a bottom. It is provided with a cylindrical guide portion 65 that is erected in the axial direction from the inner peripheral edge of the wall 64E. The base 51E is made of, for example, polypropylene. The base portion 51E has an annular convex portion 73a that engages with the concave portion 62a on the outer peripheral surface of the inner cylinder 62E. The inner peripheral surface of the inner cylinder 62E constitutes the valve seat of the check valve 53.

The bottom wall 64E is formed in an annular shape. The bottom wall 64E has an opening 64a provided in the center in the radial direction and a plurality of distribution ports 64b provided in the circumferential direction.

The check valve 53 includes a moving body 81 formed in a bottomed cylindrical shape, an annular lip 82 provided on the outer peripheral surface of one end of the moving body 81 that is closed, and the other opening of the moving body 81. A plurality of protrusions 83 provided on the end surface of the end portion of the above are provided.

In the discharge container 1E configured in this way, similarly to the discharge container 1 described above, the pressure inside the inner container 22 becomes higher than the atmospheric pressure, and the pressure at which the check valve 53 initially operates is applied to the moving body 81. Then, the moving body 81 is pressed by the content 100 and moves until the protrusion 83 comes into contact with the top wall portion 71E. Further, the lip 82 is pressed by the content 100 to separate from the inner peripheral surface of the inner cylinder 62E. As a result, the content 100 in the inner container 22 moves from the opening 64a through the top wall portion 71E, the body portion 81a, and the protrusion 83 to the nozzle portion 72, and is discharged from the nozzle portion 72. Further, since the discharge container 1E has the above-described configuration, it is possible to prevent dripping during the next use, similarly to the discharge container 1.

Further, the discharge container 1E configured in this way is configured so that the base portion 51E and the moving body 81 can be attached to and detached from the cap main body 41E. Therefore, regarding the structures of the discharge nozzle 52E, the lid 43, and the hinge 42, the cap and the component having no dripping prevention function can be shared and used. Therefore, the manufacturing cost can be reduced.

In the above-mentioned example, the container main body 10 has been described using a double container having an outer container 21 and an inner container 22, but the present invention is not limited thereto. The container body 10 may be, for example, a tube container made of a resin material having a small restoring force. That is, in the container body 10, the air in the container body 10 is compressed due to the elastic deformation due to the pressing of the container body 10, and the moving body 81 moves toward the top wall portion 71 due to the increase in the pressure in the container body 10. Any container having a restoring force capable of moving the moving body 81 to the bottom wall 64 side by negatively pressing the inside of the container body 10 with the restoration of the container shape by releasing the pressing of the container body 10. good.

That is, the present invention is not limited to the above-described embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate, and in that case, the combined effect can be obtained. Further, the above-described embodiment includes various inventions, and various inventions can be extracted by a combination selected from a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the problem can be solved and the effect is obtained, the configuration in which the constituent requirements are deleted can be extracted as an invention.
The following is a description equivalent to the invention described in the claims of the original application of the present application.
[1] A cap provided at the mouth of a container body that accommodates the contents and is deformed by pressing pressure.
A tubular inner cylinder and a base including a bottom wall provided at one end of the inner cylinder and having a distribution port, and
A discharge nozzle that covers the base portion and has a nozzle portion that discharges the contents, and forms a valve chamber between the base portion and the nozzle portion.
Provided in the valve chamber, the valve chamber is divided into the nozzle portion side and the bottom wall side, and when the pressure in the container body becomes higher than the pressure on the nozzle portion side of the valve chamber, the nozzle portion side. To increase the volume of the valve chamber on the bottom wall side, and to make the flow path between the container body and the valve chamber continuous through the flow port, the pressure on the nozzle portion side of the valve chamber. Is higher than the pressure inside the container body, the check valve is provided in the valve chamber to block the flow path and move to the bottom wall side to increase the volume of the nozzle portion side of the valve chamber. With a valve
Cap with.
[2] The cap according to [1], wherein the bottom wall has an opening and a cylindrical guide portion that stands on the main surface of the nozzle portion side provided in the opening.
[3] The check valve is provided on an outer peripheral surface of a cylindrical moving body that covers the guide portion and has one end closed, and an end portion of the tubular moving body that faces the bottom wall. The cap according to [2], which is arranged in the valve chamber and includes a lip that abuts on the inner peripheral surface of the inner cylinder.
[4] The check valve is provided on an annular moving body, a first lip provided on the outer peripheral surface of an end portion of the annular moving body facing the bottom wall, and abutting on the inner peripheral surface of the inner cylinder, and [2]. Cap.
[5] The cap according to [1], wherein the discharge nozzle has a top wall portion that covers the inner cylinder and the bottom wall, and a tubular nozzle portion that extends from both main surfaces of the top wall portion.
[6] The cap according to [3], which is provided on an end surface of the moving body facing the discharge nozzle and has a plurality of protrusions that come into contact with the discharge nozzle when the check valve moves.
[7] The guide portion has an engaging portion on the inner peripheral surface of the tip thereof.
The moving body includes a cylindrical body having an inner diameter larger than the outer diameter of the guide portion, a bottom portion integrally provided at one end of the body portion on the discharge nozzle side, and the container at the bottom portion. The cap according to [3], which is provided on a main surface on the main body side and includes a plurality of protrusions having an engaged portion that engages with the engaging portion in the axial direction.
[8] The cap according to any one of [1] to [7] and
An outer container having a mouth portion to which the cap is fixed, and a container body provided in the outer container and having an inner container that is deformed as the outer container is deformed.
A discharge container characterized by being provided with.

1 ... Discharge container, 1A ... Discharge container, 1B ... Discharge container, 1C ... Discharge container, 1D ... Discharge container, 1E ... Discharge container, 10 ... Container body, 11 ... Cap, 11A ... Cap, 11C ... Cap, 11D ... Cap , 11E ... Cap, 21 ... Outer container, 22 ... Inner container, 31 ... Body, 32 ... Mouth, 32a ... First protrusion, 32b ... Second protrusion, 33 ... Intake valve, 41 ... Cap body, 41A ... cap body, 41C ... cap body, 41D ... cap body, 41E ... cap body, 42 ... hinge, 43 ... lid body, 43a ... engaged part, 43b ... sealing ring, 51 ... base, 51A ... base, 51C ... Base, 51D ... Base, 51E ... Base, 52 ... Discharge nozzle, 52A ... Discharge nozzle, 52B ... Discharge nozzle, 52D ... Discharge nozzle, 52E ... Discharge nozzle, 53 ... Check valve, 53A ... Check valve, 53D ... Reverse Stop valve, 54 ... Valve chamber, 61 ... Outer cylinder, 61a ... Protrusion, 62 ... Inner cylinder, 62a ... Recess, 62E ... Inner cylinder, 63 ... Wall part, 63a ... Circular protrusion, 63b ... Engagement part, 64 ... Bottom Wall, 64a ... Opening, 64b ... Distribution port, 64C ... Bottom wall, 64D ... Bottom wall, 64E ... Bottom wall, 65 ... Guide, 66 ... Engaging, 67 ... Inner wall, 71 ... Top wall, 71a ... Projection, 71E ... Top wall, 72 ... Nozzle, 72A ... Nozzle, 73 ... Cylinder, 73a ... Convex, 73E ... Cylinder, 74 ... Projection, 81 ... Moving body, 81a ... Body, 81A ... moving body, 81b ... bottom, 81c ... recess, 81D ... moving body, 82 ... lip, 82Da ... first lip, 82Db ... second lip, 83 ... protrusion, 84 ... protrusion, 84a ... engaged part , 100 ... Contents.

Claims (8)

A cap provided at the mouth of the container body that accommodates the contents and is deformed by pressing force.
A tubular inner cylinder and a base including a bottom wall provided at one end of the inner cylinder and having a distribution port, and
A discharge nozzle that covers the base portion and has a nozzle portion that discharges the contents, and forms a valve chamber between the base portion and the nozzle portion.
The valve includes a tubular moving body whose one end is closed, and a lip provided on the outer peripheral surface of an end portion of the tubular moving body facing the bottom wall and in contact with the inner peripheral surface of the inner cylinder. provided in the indoor, sectioned said valve chamber to said nozzle portion and said bottom wall, the pressure in the container body becomes higher than the pressure of the nozzle portion of the valve chamber, the said valve chamber nozzle Axial movement toward the portion side to increase the volume of the bottom wall side of the valve chamber, after which the lip is separated from the inner peripheral surface of the inner cylinder, and the container body and the container body via the flow port. When the flow path between the valve chambers is continuous and the pressure on the nozzle portion side of the valve chamber becomes higher than the pressure inside the container body, the lip is restored and comes into contact with the inner peripheral surface of the inner cylinder. A check valve provided in the valve chamber that shuts off the flow path and then moves the valve chamber toward the bottom wall side in the axial direction to increase the volume of the nozzle portion side of the valve chamber. ,
Cap with. The bottom wall cap according to claim 1 having a tubular guide portion provided upright on the main surface of the front Symbol nozzle portion. The bottom wall has an opening
The guide portion is provided in the opening and is provided.
The moving body, cormorants covering the guide portion, the cap according to請Motomeko 2. The lip is the first lip
The check valve is provided on the inner peripheral surface of the end portion facing the bottom wall of the movable body annular, it comprises an outer circumferential surface abutting a second lip of said guide portion, according to請Motomeko 2 cap. Any one of claims 1 to 4, wherein the discharge nozzle has a top wall portion that covers the inner cylinder and the bottom wall, and a tubular nozzle portion that extends from both main surfaces of the top wall portion. The cap described in the section. The invention according to any one of claims 1 to 5, which is provided on an end surface of the moving body facing the discharge nozzle and has a plurality of protrusions that come into contact with the discharge nozzle when the check valve moves. cap. The guide portion has an engaging portion on the inner peripheral surface of the tip thereof, and has an engaging portion.
The moving body includes a cylindrical body having an inner diameter larger than the outer diameter of the guide portion, a bottom portion integrally provided at one end of the body portion on the discharge nozzle side, and the container at the bottom portion. The cap according to claim 3, further comprising a plurality of protrusions provided on a main surface on the main body side and having an engaged portion that engages with the engaging portion in the axial direction. The cap according to any one of claims 1 to 7.
An outer container having a mouth portion to which the cap is fixed, and a container body provided in the outer container and having an inner container that is deformed as the outer container is deformed.
A discharge container characterized by being provided with.

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