JP7023578B2 - Dispensing container - Google Patents

Description

The present invention relates to a container that can contain and pour out the contents of a separated liquid containing two types of liquids to be separated, such as a separated liquid dressing.

For example, as a container for containing the contents of a separated liquid containing two types of liquids to be separated, such as a separated liquid dressing containing a seasoning liquid and an oil, a container having a mouth, a body and a bottom in the shape of a bottle has been conventionally used. In the outer layer body that constitutes the outer shell of the above and has an outside air introduction port at the mouth, and the inner layer body that is provided with a storage space for the contents of the separated liquid and is housed in the outer layer body so that the volume can be reduced and deformed, and the storage space. A spout cap attached to the mouth with a spout for pouring out the contained separated liquid contents, and a spout cap with a first and second flow ports mounted inside the spout cap. The inner plug that covers the opening of the mouth and the contents that are connected to the first distribution port and extend toward the bottom inside the storage space, and the contents contained in the storage space are directed toward the first distribution port. Contents to be passed through and the contents provided at the first flow port and allowing the flow of contents from the pipe to the spout through the first flow port and from the spout to the pipe through the first flow port. The first check valve that blocks the flow of goods and the second check valve that is provided at the second flow port allow the flow of contents from the accommodation space to the spout through the second flow port, and allow the flow of contents from the spout to the second flow. Those having a second check valve that blocks the flow of contents toward the accommodation space through the mouth are known (see, for example, Patent Document 1).

According to the pouring container having such a configuration, when pouring out the separated liquid contents contained therein, the pouring outlet faces downward without shaking the container by hand to stir the contents. By simply tilting the container and squeezing the body, it is possible to pour out the two separated liquids in a mixed state at the desired ratio.

Japanese Unexamined Patent Publication No. 2017-132531

In the above-mentioned conventional pouring container, when the filling ratio of the two types of liquids having a small specific gravity among the two types of separated liquid contents filled in the container is extremely smaller than that of the one having a large specific gravity, the pouring outlet is used. When the container is tilted so that it faces downward and the body is squeezed, the lower end of the pipe is placed close to the bottom to prevent the liquid with the higher specific density from being sucked from the pipe. Must be.

However, in such a configuration, when the container is tilted so that the spout points downward and the contents are poured out, depending on the tilt angle of the container, the lower end of the pipe is contained in the air contained in the inner layer. There is a problem that the mixing ratio of the contents to be poured may become unstable due to the exposure.

The present invention has been made in view of such a problem, and an object of the present invention is to use a desired mixing ratio even when the filling ratios of the two liquids of the separated liquid contents are different. The purpose is to provide a pouring container capable of pouring things.

The pouring container of the present invention has a bottle shape having a mouth, a body, and a bottom, and has an outer layer body that constitutes the outer shell of the container and is provided with an outside air introduction port, and a storage space for separated liquid contents. It is provided with an inner layer body housed in the outer layer body in a volume-reducing and deformable manner, and a spout port for pouring out the separated liquid contents housed in the storage space, and is attached to the mouth portion. A cap, an inner plug that is provided inside the spout cap and covers the opening of the mouth, and a flow port that is connected to the flow port and is connected to the flow port to the bottom of the storage space. A pipe extending toward the center and allowing the contents contained in the storage space to pass toward the distribution port, and a pipe provided at the distribution port, from the pipe to the spout through the flow port. It has a check valve that allows the flow of contents and blocks the flow of contents from the spout to the pipe through the flow port, and has a cross-sectional area on the body. A narrow portion smaller than the portion of the pipe is provided, and a suction hole for penetrating the pipe inward and outward is provided in a portion located inside the narrow portion between the upper end and the lower end of the pipe. It is characterized by that.

In the above-mentioned configuration, in the dispensing container of the present invention, the narrow portion is formed by providing a concave portion recessed toward the inside of the cylindrical portion in a part of the cylindrical portion. preferable.

In the above configuration, the pouring container of the present invention preferably includes an enlarged portion of the body portion between the narrow portion and the mouth portion, which has a larger cross-sectional area than the narrow portion.

In the above configuration, the pouring container of the present invention preferably has a measuring cap provided with a measuring chamber connected to the spout through the inflow hole.

In the above configuration, the pouring container of the present invention has a closing position in which the inflow hole is closed by the plug portion provided in the pouring cap, and the plug portion is separated from the inflow hole. It is preferable that the inflow hole can be moved up and down with respect to the pouring cap from the open position where the inflow hole is opened.

In the above-mentioned configuration, the pouring container of the present invention preferably has the outside air introduction port provided at the mouth portion and the bottom portion.

In the injection container of the present invention, in the above configuration, the air flow path that communicates between the communication hole for introducing outside air provided in the injection cap and the outside air introduction port provided in the mouth portion is the note. It is provided inside the outlet cap to allow the flow of air from the communication hole toward the outside air introduction port provided in the mouth portion, and is directed from the outside air introduction port provided in the mouth portion toward the communication hole. It is preferable that the pouring cap is provided with a check valve for intake that blocks the flow of air.

In the above configuration, the pouring container of the present invention preferably has the outside air introduction port provided only at the bottom.

According to the present invention, it is possible to provide a pouring container capable of pouring the contents at a desired mixing ratio even when the filling ratios of the two liquids of the separated liquid contents are different. ..

It is a vertical sectional view of the pouring container which concerns on one Embodiment of this invention. FIG. 3 is an enlarged cross-sectional view showing an enlarged portion of a pouring cap portion of the pouring container shown in FIG. 1. It is explanatory drawing which shows the rotation regulation mechanism schematically. It is explanatory drawing which shows the state of pouring the contents from the pouring container shown in FIG. It is explanatory drawing which shows the state which further poured out the contents from the state shown in FIG. It is a vertical sectional view of the modification of the pouring container shown in FIG. It is explanatory drawing which shows the state of pouring the contents from the pouring container shown in FIG. It is explanatory drawing which shows the state which further poured out the contents from the state shown in FIG. 7. It is a vertical cross-sectional view of a pouring container of a modified example in which a narrow portion is formed by providing a pinch-off portion on the body portion. It is a vertical cross-sectional view of a pouring container of a modified example in which a narrow portion is formed into a constricted shape.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

As shown in FIG. 1, the pouring container 1 according to the embodiment of the present invention has an outer layer 2 constituting the outer shell of the pouring container 1 and a volume-reducing deformation housed inside the outer layer 2. It comprises a double container 4 having a possible inner layer 3 and a cap assembly 6 attached to the mouth 5 of the outer layer 2.

Here, in the present specification and claims, "upper" and "lower" are "upper" when the pouring container 1 is in an upright posture with the mouth portion 5 facing upward as shown in FIG. "And" below ".

The mouth portion 5 of the outer layer body 2 is formed in a cylindrical shape having a circular cross section, and the body portion 7 is integrally connected to the lower end of the mouth portion 5, and the bottom portion 8 is integrally connected to the lower end of the body portion 7. .. As a result, the outer layer body 2 has a bottle shape.

As shown in FIG. 2, a male screw portion 5a is provided on the outer peripheral surface of the mouth portion 5, so that the cap assembly 6 can be screwed on.

The mouth portion 5 is provided with a pair of outside air introduction ports 5b for introducing outside air between the outer layer body 2 and the inner layer body 3. The outside air introduction port 5b penetrates the mouth portion 5 in the radial direction and communicates with the outer layer body 2 and the inner layer body 3. Further, at a position corresponding to the pair of outside air introduction ports 5b on the outer surface of the mouth portion 5, a pair of vertical grooves 5c forming a part of the air flow path are formed by cutting out the male screw portion 5a.

As shown in FIG. 1, the body portion 7 has a substantially cylindrical shape coaxial with the mouth portion 5, has flexibility, can be squeezed, and has resilience to the original shape. ing. The body portion 7 is not limited to a substantially cylindrical shape, and may have various shapes such as a polygonal cylinder shape and an elliptical cylinder shape, for example.

In the center of the bottom portion 8, a linear pinch-off portion 9 formed by cutting off with a blow molding split die is formed. In the present embodiment, the pinch-off portion 9 has a linear shape extending in the radial direction of the bottom portion 8 and is provided on the parting line of the bottom portion 8.

The pinch-off portion 9 is provided with an outside air introduction port 9a for introducing outside air between the outer layer body 2 and the inner layer body 3. The outside air introduction port 9a has a slit shape, penetrates the pinch-off portion 9 in the vertical direction, and communicates between the outer layer body 2 and the inner layer body 3.

A hakama-shaped cover 10 is attached to the bottom portion 8. The cover 10 is formed by injection molding of a synthetic resin material into a bottomed tubular shape having an outer peripheral wall 10a having substantially the same diameter as the body portion 7 and a bottom wall 10b that closes the lower end of the outer peripheral wall 10a. In 10a, it is airtightly fixed to the lower part of the double container 4 by screwing. An opening 10c is provided in the bottom wall 10b of the cover 10, and a check valve 10d is arranged in the opening 10c. The check valve 10d is configured as a three-point valve (a valve connected by three elastically deformable legs), and is a cover 10 that moves upward, separates from the opening 10c, and passes through the opening 10c from the outside. It operates so as to allow the introduction of outside air into the inside and prevent the outflow of air from the inside of the cover 10 to the outside through the opening 10c. By providing such a cover 10, it is possible to prevent the air between the outer layer body 2 and the inner layer body 3 from leaking to the outside from the slit-shaped outside air introduction port 9a when the body portion 7 is squeezed. It is possible to facilitate the pouring of the contents. Further, since the cover 10 is accurately formed by injection molding of a synthetic resin material, the pouring container 1 is positively placed on the mounting surface by bringing the lower end of the outer peripheral wall 10a of the cover 10 into contact with the mounting surface. It can be placed stably in a standing position.

The check valve 10d is not limited to the three-point valve, and various valves such as a valve connected by two or less legs and a valve connected by four or more legs are adopted. be able to.

In the pinch-off portion 9, the inner layer body 3 is fixed to the outer layer body 2. As a result, in the bottom portion 8, the bottom portion of the inner layer body 3 can be held by the outer layer body 2, and the direction of volume reduction deformation of the inner layer body 3 due to the discharge of the contents can be regulated, and the discharge failure can be prevented. can.

In the present embodiment, a band-shaped adhesive layer formed of a synthetic resin having adhesiveness to the outer layer 2 and the inner layer 3, that is, an adhesive band is provided between the outer layer 2 and the inner layer 3. However, it is also possible to provide one or more adhesive bands. The adhesive band is arranged between the outer layer body 2 and the inner layer body 3, for example, from the body portion 7 to the bottom portion 8 along the parting line, and joins the outer layer body 2 and the inner layer body 3 to each other. Further, for example, two adhesive bands may be provided on both sides so as to sandwich the parting line.

The inner layer 3 has a storage space M for accommodating the contents inside the inner layer 3, is configured to be deformable in a reduced volume, and is releasably laminated on the inner surface of the outer layer 2. Here, when the adhesive band is provided, the inner layer 3 is joined and held by the adhesive band from the body 7 to the bottom 8 of the outer layer 2, so that the inner layer 3 is held even if the contents are discharged. The inner surfaces of the two are not partially in contact with each other to block a part of the accommodation space M.

The double container 4 of the present embodiment is a laminated peeling container (derami container) that can be formed by, for example, the following method. That is, first, a synthetic resin for the outer layer 2 and a synthetic resin for the inner layer 3 having low compatibility are co-extruded to form a laminated parison, and this laminated parison is blow-molded using a mold. The inner layer 3 is formed into a laminated structure in which the inner layer 3 is detachably adhered to the inner surface of the outer layer 2. Then, after blow molding, the inner layer 3 is contracted once by suction or the like to peel off the entire inner layer 3 from the outer layer 2, and then air is blown into the inner layer 3 (accommodation space M) to cause the inner layer 3 to be separated. Restore the shape.

In this way, after blow molding, the inner layer 3 is once shrunk by suction or the like to peel off the entire inner layer 3 from the outer layer 2, so that the inner layer 3 can be easily peeled from the outer layer 2 when the contents are poured out. can do.

After the peeling treatment of the inner layer 3, in the present embodiment, for example, a food seasoning such as a separated liquid dressing containing water and oil, and a separated liquid content such as a cosmetic (hereinafter, simply "contents"). May be referred to as) is filled in the accommodation space M of the inner layer body 3, and the cap assembly 6 is mounted. In the present embodiment, the content composed of the first liquid (for example, oil) L1 and the second liquid (for example, seasoning liquid) L2, which are two kinds of separated liquids, is stored in the storage space M, and the pouring container 1 is positive. In the standing position, the first liquid L1 having a light specific gravity is located above the second liquid L2 having a heavy specific gravity. Further, the filling ratio of the first liquid L1 having a small specific gravity is extremely smaller than that of the second liquid L2 having a large specific gravity. That is, the volume of the first liquid L1 filled in the accommodation space M is smaller than the volume of the second liquid L2 filled in the accommodation space M.

The cap assembly 6 includes a pouring cap 11, an inner plug 12, and a valve member 13.

As shown in FIG. 2, the pouring cap 11 includes an outer peripheral wall 15 that surrounds the mouth portion 5, and a top wall 16 that covers the upper end of the outer peripheral wall 15. A female threaded portion 15a that engages with the male threaded portion 5a is provided on the inner surface of the outer peripheral wall 15, and the pouring cap 11 is detachably screwed to the mouth portion 5 while holding the inner plug 12 and the valve member 13 inside. It is fixed by wearing. The pouring cap 11 may be configured to be fixed to the mouth portion 5 by undercut engagement.

The dispensing cap 11 is provided with a dispensing cylinder 17. The dispensing cylinder 17 projects upward from the upper surface of the top wall 16 and is connected to the inner space of the dispensing cap 11 at the base end, and the upper end thereof is a separated liquid content housed in the storage space M. It is a spout 17a for pouring out (a mixture of the first liquid L1 and the second liquid L2).

As shown in FIG. 2, the top wall 16 of the pouring cap 11 is provided with a communication hole 16a that penetrates the top wall 16 and guides the outside air to the outside air introduction port 5b.

As shown in FIG. 2, the inner plug 12 is formed from a partition wall 18 that covers the upper end opening of the mouth portion 5, a seal cylinder 19 that hangs down from the partition wall 18 and abuts on the inner peripheral surface of the mouth portion 5, and an outer edge of the partition wall 18. It includes an annular wall 20 that projects upward and is fitted and held in the outer peripheral wall 15. The inner plug 12 is attached to the inside of the pouring cap 11 and is attached to the mouth portion 5 together with the pouring cap 11 to cover the opening of the mouth portion 5.

The partition wall 18 is provided with a distribution port 21. The distribution port 21 penetrates the partition wall 18, and the separated liquid contents contained in the storage space M can be circulated toward the pouring cylinder 17. Further, a through hole 18a is formed in the outer edge portion (lower part of the annular wall 20) of the partition wall 18 to allow outside air to pass from the communication hole 16a to the outside air introduction port 5b.

A pipe 23 is connected to the distribution port 21, and a first check valve 24 is provided.

The first check valve 24 includes a tubular body 25 that is integrally provided on the partition wall 18 and projects from the lower surface of the partition wall 18 toward the bottom portion 8 and a valve body 26 that is arranged inside the tubular body 25. Have. The tubular body 25 includes a main body portion 25a having a constant inner diameter and a reduced diameter portion 25b having a diameter smaller than that of the main body portion 25a integrally connected to the lower end of the main body portion 25a via a portion whose diameter is reduced downward. It is formed in a substantially cylindrical shape, and its upper end is connected to the opening of the distribution port 21.

The valve body 26 is formed of, for example, a steel material, a resin material, or the like to form a spherical shape (spherical shape) having a diameter smaller than the inner diameter of the main body portion 25a and a diameter larger than the inner diameter of the reduced diameter portion 25b, and is arranged inside the main body portion 25a. Therefore, it is movable along the axial direction of the main body portion 25a between the closed position abutting on the upper end of the reduced diameter portion 25b and the open position away from the reduced diameter portion 25b. When the valve body 26 is in the open position, a gap is created between the inner peripheral surface of the main body portion 25a and the outer peripheral surface of the valve body 26, and the contents can be circulated through the gap.

For example, the pipe 23 made of synthetic resin has a cylindrical shape having an outer diameter equivalent to the outer diameter of the main body portion 25a and an inner diameter equivalent to the outer diameter of the reduced diameter portion 25b, and is formed on the upper end side portion thereof. It is fitted and fixed to the outer peripheral surface of the reduced diameter portion 25b, and is connected to the flow port 21 via the first check valve 24.

As shown in FIG. 1, the pipe 23 extends the inside of the accommodation space M straight from the upper end portion connected to the distribution port 21 via the check valve 24 to the bottom portion 8 along the central axis O of the outer layer body 2. The lower end 23a extends toward the bottom and is open on the side of the bottom 8 inside the accommodation space M. Further, the lower end position of the pipe 23 is set so that the lower end 23a of the pipe 23 is located inside the second liquid L2 housed in the storage space M when the pouring container 1 is in the upright posture. .. Therefore, of the separated liquid contents stored inside the storage space M, the second liquid L2 is separated and stored on the side of the bottom 8 when the pouring container 1 is in the upright posture. Can be taken in from the lower end 23a of the pipe 23 and guided toward the distribution port 21 through the pipe 23.

As shown in FIG. 2, the pipe 23 may be configured such that the guard member 23b is attached to the lower end 23a. The guard member 23b has a cylindrical shape that is fitted and fixed to the lower end 23a of the pipe 23, and a plurality of slits 23c are provided on the outer peripheral wall thereof. By attaching the guard member 23b to the lower end 23a of the pipe 23, it is possible to prevent the lower end 23a of the pipe 23 from being sealed by the volume-reduced and deformed inner layer body 3.

The above-mentioned first check valve 24 allows the valve body 26 to move from the closed position to the open position with respect to the flow of the contents from the pipe 23 through the distribution port 21 toward the pouring cylinder 17. The valve body 26 moves from the open position to the closed position and operates to prevent the flow of the contents from the dispensing cylinder 17 to the pipe 23 through the distribution port 21. Further, the first check valve 24 moves to the lower end position where the valve body 26 abuts on the reduced diameter portion 25b due to its own weight after the contents are poured out, so that the contents remaining inside the pouring cylinder 17 An object can be sucked toward the accommodation space M side. Due to the suckback function of the first check valve 24, it is possible to prevent the contents from dripping from the spout 17a of the spouting cylinder 17. As will be described later, the distribution port 21 is configured such that the second check valve 28 also regulates the backflow of the contents from the side of the dispensing cylinder 17 toward the side of the accommodation space M. The valve body 26 may not be provided.

As shown in FIG. 2, the valve member 13 includes a cylindrical holding portion 27, a second check valve 28 provided inside the holding portion 27, and an intake check valve provided outside the holding portion 27. 29 is integrally molded. The second check valve 28 and the intake check valve 29 may be formed as separate members.

The holding portion 27 is fitted and held between the partition wall 18 of the inner plug 12 and the top wall 16 of the pouring cap 11. The inside of the holding portion 27 is a space through which the contents flowing in through the distribution port 21 can pass, and the outside of the holding portion 27 allows air to pass from the communication hole 16a to the outside air introduction port 5b. It is an air flow path.

The second check valve 28 is arranged at the opening of the distribution port 21 to open and close the opening, and allows the flow of contents from the accommodation space M through the distribution port 21 to the pouring cylinder 17. , It operates so as to prevent the flow (backflow) of the contents from the dispensing cylinder 17 to the accommodation space M through the distribution port 21. In the present embodiment, the thin plate-shaped second check valve 28 is a three-point valve that moves up and down in the axial direction according to the pressure of the contents from the accommodation space M side toward the dispensing cylinder 17. It is configured as (a valve connected to the inner peripheral surface of the holding portion 27 by three elastically deformable legs), and the distribution port 21 is opened only when the contents are poured out. The second check valve 28 is not limited to the three-point valve, and is connected to the inner peripheral surface of the holding portion 27 by a valve connected by two or less legs or by four or more legs. It may be composed of a valve.

As described above, in the present embodiment, the second check valve 28 is provided in addition to the first check valve 24, and these two check valves 24 and 28 allow the accommodation space M to pass through the distribution port 21. The flow of the contents toward the dispenser cylinder 17 is allowed, and the flow of the contents from the dispenser cylinder 17 through the distribution port 21 to the accommodation space M is blocked, but the first check is stopped. It is also possible to have a configuration in which only one of the valve 24 and the second check valve 28 is provided.

The intake check valve 29 is composed of an annular piece extending radially outward from the outer peripheral surface of the holding portion 27, and its outer edge is elastically in contact with the lower surface of the top wall 16 on the outer peripheral side of the communication hole 16a. As described above, the intake check valve 29 is provided in the air flow path that communicates the communication hole 16a and the outside air introduction port 5b provided in the mouth portion 5, and the air from the communication hole 16a toward the outside air introduction port 5b is provided. It is configured to allow the flow and prevent the air flow (backflow) from the outside air introduction port 5b toward the communication hole 16a.

As shown in FIG. 2, a measuring cap 30 is attached to the pouring cap 11. The measuring cap 30 has a cylindrical mounting cylinder portion 31, and a female screw portion 31a provided on the inner peripheral surface of the mounting cylinder portion 31 is integrally provided on the top wall 16 of the pouring cap 11. By being screwed to the male screw portion 32a, it is attached to the dispensing cap 11 so as to be movable in the vertical direction by rotating relative to the dispensing cap 11.

The measuring cap 30 is integrally connected above the mounting cylinder portion 31 and includes a bottomed tubular measuring cup portion 33. The inside of the measuring cup portion 33 is a measuring chamber 33a. An inflow hole 33b is provided at the bottom of the measuring cup portion 33, and the measuring chamber 33a is connected to the spout 17a via the inflow hole 33b.

The pouring cap 11 is provided with a plug portion 34. The plug portion 34 is formed in a rod shape having a cross-sectional shape corresponding to the inflow hole 33b, is supported by a plurality of leg portions 34a arranged at intervals in the circumferential direction, and is arranged above the spout 17a. As shown in FIG. 1, when the measuring cap 30 is in the closed position screwed into the pouring cap 11, the plug portion 34 fits into the inflow hole 33b and closes the inflow hole 33b. On the other hand, when the measuring cap 30 is set to the open position (position shown in FIG. 3) in which the measuring cap 30 is relatively rotated in the loosening direction with respect to the pouring cap 11 and moved upward, the plug portion 34 is separated from the inflow hole 33b. The inflow hole 33b is opened.

As shown schematically in FIG. 3, the rotation range of the measuring cap 30 with respect to the pouring cap 11 is set on the weighing cap 30 between a pair of stoppers 35 provided on the pouring cap 11 at intervals in the circumferential direction. It is regulated within a predetermined range by the rotation regulation mechanism in which the provided rib 36 is arranged.

As shown in FIG. 2, a cylindrical partition wall 37 is integrally provided on the bottom of the measuring cup portion 33, and the inner peripheral surface of the partition wall 37 is liquid-tightly fitted to the outer peripheral surface of the dispensing cylinder 17. , A flow path for the contents is partitioned between the spout 17a and the inflow hole 33b. Therefore, when the body portion 7 is squeezed and the contents are poured out from the spout 17a with the measuring cap 30 in the open position, the contents are accommodated in the measuring chamber 33a through the inflow hole 33b.

The measuring cup portion 33 is provided with a measuring memory (not shown) for measuring the volume of the contents flowing into the measuring chamber 33a, and the user can measure the contents flowing into the measuring chamber 33a.

A lid 38 is provided on the measuring cup portion 33. The lid 38 is integrally connected to the measuring cup portion 33 via the hinge 38a, and the measuring cup portion 33, that is, the measuring chamber 33a can be opened and closed by rotating around the hinge 38a.

As shown in FIG. 1, a narrow portion 40 is provided on the upper end side of the body portion 7, and among the contents filled in the accommodation space M, the first liquid L1 having a light specific gravity is the narrow portion of the body portion 7. It is housed inside the portion 40. The narrow portion 40 is a portion of the body portion 7 whose cross-sectional area is smaller than that of the other portions. The cross section of the body portion 7 is a cross section perpendicular to the central axis O of the body portion 7.

In this way, by providing the narrow portion 40 on the upper end side of the body portion 7, among the contents filled in the accommodation space M, the filling ratio of the first liquid L1 having a small specific gravity to the accommodation space M is large. Even if it is extremely smaller than the second liquid L2, the first liquid L1 has a vertical range or thickness occupied by the first liquid L1 housed inside the narrow portion 40 inside the storage space M. It can be made larger than the case where it is accommodated in a portion other than the narrow portion 40 of the body portion 7.

In the present embodiment, the body portion 7 is connected to the mouth portion 5 and has a substantially dome-shaped shoulder portion 7a that gradually expands in diameter downward, and is connected to the lower end of the shoulder portion 7a and is connected to the shoulder portion 7a and the bottom portion 8. It has a cylindrical portion 7b having a substantially constant outer diameter between the two. Then, a pair of recessed portions 41 are provided in a part of the body portion 7 on the upper end side of the cylindrical portion 7b whose cross-sectional areas are substantially the same in the vertical direction, so that the cross-sectional area is larger than that of the other portions. A small narrow portion 40 is formed.

The recessed portion 41 is recessed toward the inside of the body portion 7 with respect to the outer peripheral surface of the cylindrical portion 7b of the body portion 7, and extends in the vertical direction (direction along the central axis O of the outer layer body 2) within a predetermined range. They are arranged so as to correspond to each other with the central axis O of the outer layer body 2 interposed therebetween. Therefore, the narrow portion 40 is also provided so as to extend in a predetermined range in the vertical direction. The narrow portion 40 has a constant cross-sectional area within a range extending in the vertical direction.

In the present embodiment, the narrow portion 40 does not reach the mouth portion 5, whereby the cross section between the narrow portion 40 and the mouth portion 5 of the body portion 7 is larger than that of the narrow portion 40. An enlarged portion 42 having a large area is provided. The enlarged portion 42 has substantially the same diameter as the diameter of the portion of the cylindrical portion 7b where the recessed portion 41 is not provided.

A suction hole 23d is provided in a portion arranged inside the narrow portion 40 of the pipe 23. In the illustrated case, the suction hole 23d is arranged so that the upper end position and the lower end position thereof are within the vertical range in which the area of the cross section of the narrow portion 40 is constant. The suction hole 23d penetrates the pipe 23 inward and outward, and the contents contained in the accommodation space M can flow into the inside of the pipe 23.

In the case shown in the figure, the suction hole 23d is an elongated hole extending in the vertical direction, but it can also be formed into another shape such as a circular shape. Further, the pipe 23 may be provided with a plurality of suction holes 23d.

In this way, by providing the suction hole 23d in the portion arranged inside the narrow portion 40 of the pipe 23, among the contents filled in the accommodation space M, the first liquid L1 having a small specific gravity is in the accommodation space M. Even when the filling ratio occupies is extremely smaller than that of the second liquid L2 having a large specific gravity, by being accommodated inside the narrow portion 40, the range or thickness in the vertical direction occupied inside the accommodation space M is increased. The suction hole 23d can be reliably arranged inside the first liquid L1. On the other hand, the lower end 23a of the pipe 23 is arranged inside the second liquid L2. Therefore, it is surely suppressed that the suction hole 23d is exposed to the air A of the head space included in the accommodation space M, and the first liquid L1 sucked from the suction hole 23d and the second liquid sucked from the lower end of the pipe 23 are sucked. The liquid L2 can be mixed at the desired mixing ratio and poured out from the pouring outlet 17a of the pouring cylinder 17.

The pouring container 1 having the above configuration pours the contents in an upright posture. When pouring out the contents from the pouring container 1, first, as shown in FIG. 4, the measuring cap 30 is rotated with respect to the pouring cap 11 while the pouring container 1 is in the upright posture to open. At the position, the lid 38 is opened to open the inflow hole 33b.

Next, when the body portion 7 is squeezed, the inner layer body 3 is pressurized, and the first liquid L1 inside the narrow portion 40 of the accommodation space M is taken into the pipe 23 from the suction hole 23d of the pipe 23. The second liquid L2 on the side of the bottom 8 of the accommodation space M is taken into the pipe 23 from the lower end 23a of the pipe 23, and flows through the pipe 23 toward the distribution port 21.

When the content in which the first liquid L1 and the second liquid L2 are mixed inside the pipe 23 reaches the distribution port 21, the valve body 26 moves from the closed position to the open position due to the hydraulic pressure, and the first check is stopped. As the valve 24 is opened, the second check valve 28 moves upward and opens, and the contents are distributed toward the pouring cylinder 17 through the distribution port 21 and are poured out from the spout 17a to the outside. .. In this way, the content composed of the first liquid L1 and the second liquid L2 mixed at the desired mixing ratio is poured out from the spout 17a.

At this time, the suction hole 23d of the pipe 23 is securely arranged inside the first liquid L1, and the suction hole 23d of the pipe 23 is surely suppressed from being exposed to the air A in the head space included in the inside of the accommodation space M. Therefore, the first liquid L1 and the second liquid L2 can be poured out from the pouring outlet 17a of the pouring cylinder 17 at the desired mixing ratio.

Therefore, according to the dispensing container 1 of the present invention, the separated liquid contents can be obtained by a simple operation of squeezing the body portion 7 while the dispensing container 1 is in an upright posture without requiring a hand shaking operation. , Can be poured in the desired mixing ratio.

The contents poured out from the spout 17a flow into the measuring chamber 33a through the inflow hole 33b, and the capacity thereof is measured. Then, when the desired amount of the contents is accommodated in the measuring chamber 33a, the squeeze of the body portion 7 is released and the weighed contents are discharged to the outside of the measuring chamber 33a.

When the squeeze of the body portion 7 is released and the outer layer body 2 is restored to its original shape, the space between the inner layer body 3 and the outer layer body 2 becomes a negative pressure state, and the communication holes 16a and the outside air introduction port 5b are opened. The outside air is introduced between the inner layer 3 and the outer layer 2 in the enlarged portion 42, and the inner layer 3 and the outer layer 2 in the cylindrical portion 7b of the body portion 7 are introduced through the opening 10c and the outside air introduction port 9a. Outside air is introduced in the meantime. At this time, since the inner layer 3 has a thick and concave shape in the narrow portion 40, it is difficult to peel off from the outer layer 2, and therefore, until the remaining amount of the contents is reduced to some extent, the body portion 7 When the inner layer 3 is separated from the outer layer 2 only in the enlarged portion 42 and the cylindrical portion 7b, and the inner layer 3 is not separated from the outer layer 2 in the narrow portion 40, and the remaining amount of the contents is reduced to some extent. Even in the narrow portion 40, the inner layer 3 is separated from the outer layer 2.

While the outside air is introduced between the outer layer 2 and the inner layer 3, the flow port 21 is blocked by the first check valve 24 and the second check valve 28, so that the pouring cylinder is inside the accommodation space M. The outside air does not enter through 17. As a result, the outer layer body 2 can be restored to the original shape while the inner layer body 3 is volume-reduced and deformed without introducing outside air into the accommodation space M. Therefore, it is possible to prevent outside air from being introduced into the accommodation space M as the contents are poured out, and to suppress deterioration or deterioration of the contents.

As described above, the first liquid L1 and the second liquid L2 can be poured out at the desired mixing ratio, and since air does not enter the inside of the accommodation space M, the squeeze of the body 7 is repeated. Even if the pouring of the contents progresses and the remaining amount decreases, as shown in FIG. 5, the inner layer 3 is separated from the outer layer 2 and the volume is reduced and deformed, so that the inside of the accommodation space M is inside. , The first liquid L1 and the second liquid L2 are always present in a constant volume ratio. Further, even if the contents are reduced, the suction hole 23d of the pipe 23 is always arranged inside the first liquid L1 inside the narrow portion 40, so that even when the remaining amount of the contents is reduced, it is expected. It is possible to continue to inject the contents stably with the mixed ratio.

Further, since the enlarged portion 42 is provided between the narrow portion 40 of the body portion 7 and the mouth portion 5, the pouring container 1 is accommodated in the area inside the enlarged portion 42 with the air A in the head space. Can be done. As a result, even if the accommodation space M contains the air A in the head space, the ratio of the first liquid L1 to the inside of the narrow portion 40 is increased, and the suction hole 23d of the pipe 23 is formed inside the first liquid L1. It can be ensured that it is placed. Therefore, when the contents are poured out, the suction hole 23d of the pipe 23 is more reliably suppressed from being exposed to the air A in the head space contained in the accommodation space M, and the first liquid L1 and the second liquid L1 and the second liquid are further suppressed. It is possible to pour out L2 from the spout 17a of the spouting cylinder 17 at the desired mixing ratio.

Further, by providing the outside air introduction ports 5b and 9a in the mouth portion 5 and the bottom portion 8 of the double container 4, respectively, the inner layer body 3 is on the side of the mouth portion 5 with respect to the narrow portion 40 which is difficult to be separated from the outer layer body 2. The inner layer 3 can be separated from the outer layer 2 so that outside air is introduced between the inner layer 3 and the outer layer 2 on both sides of the bottom portion 8. As a result, the inner layer 3 can be contracted until the volume becomes lower, and the remaining amount of the contents remaining in the accommodation space M without being poured can be reduced.

The mixing ratio of the first liquid L1 and the second liquid L2 includes the size of the distribution port 21, the inner diameter of the pipe 23, the gap between the main body 25a and the valve body 26, the opening degree of the second check valve 28, and the like. The desired mixing ratio can be set by making various changes.

FIG. 6 is a vertical cross-sectional view of a modified example of the dispensing container 1 shown in FIG. 1, and FIG. 7 is an explanatory view showing a state in which the contents are dispensed from the dispensing container 1 shown in FIG. 8 is an explanatory diagram showing a state in which the contents are further poured out from the state shown in FIG. 7. In FIGS. 6 to 8, the members corresponding to the above-mentioned members are designated by the same reference numerals.

Like the pouring container 1 of the modified example shown in FIG. 6, the outside air introduction port 9a may be provided only on the bottom 8 of the double container 4, and the outside air introduction port may not be provided on the port 5.

As described above, by providing the outside air introduction port 9a only on the bottom 8 of the double container 4, as shown in FIGS. 7 and 8, the accommodation space M is provided as the contents are poured out. The inner layer 3 is separated from the outer layer 2 in the enlarged portion 42 located on the side of the mouth 5 with respect to the narrow portion 40 in which the inner layer 3 is difficult to be separated from the outer layer 2 even if the contents accommodated in the outer layer 2 are gradually reduced. It can be configured so as not to peel off. As a result, even if the contents accommodated in the accommodation space M are gradually reduced, the air A in the head space is accommodated inside the narrow portion 40 so as to be accommodated in the enlarged portion 42 having a constant volume at all times. It is possible to suppress the change in the position of the liquid surface of the first liquid L1. Therefore, regardless of the remaining amount of the contents, the suction hole 23d of the pipe 23 can always be surely arranged inside the first liquid L1 inside the narrow portion 40, so that the remaining amount of the contents is reduced. In some cases, the contents can be stably poured out at the desired mixing ratio.

In the modified example shown in FIG. 6, the opening area of the slit-shaped outside air introduction port 9a is set narrow, and when the body portion 7 is squeezed, the air between the outer layer body 2 and the inner layer body 3 is slit-shaped outside air. By making it difficult to leak from the introduction port 9a, air leakage during squeezing of the body portion 7 is suppressed and the contents can be poured out. However, this modification is also the same as that shown in FIG. The cover 10 may be mounted on the double container 4.

Further, in the modified example shown in FIG. 6, the vertical groove 5c, the communication hole 16a, and the intake check valve 29 may not be provided.

FIG. 9 is a vertical cross-sectional view of the pouring container 1 of a modified example in which the narrow portion 40 is formed by providing the pinch-off portion 43 on the body portion 7, and FIG. 10 is a vertical cross-sectional view of the pouring container 1 in which the narrow portion 40 is formed in a constricted shape. It is a vertical cross-sectional view of the pouring container 1 of the modification of the above. In FIGS. 9 and 10, the same reference numerals are given to the members corresponding to the above-mentioned members.

As shown in FIG. 9, the narrow portion 40 may be formed by providing a pair of pinch-off portions 43 on a part of the body portion 7. The pair of pinch-off portions 43 are formed in a plate shape by partially sandwiching a part of the body portion 7 between the split dies during blow molding, and correspond to each other with the central axis O of the outer layer body 2 interposed therebetween. Have been placed. In this way, by providing the pinch-off portion 43 in a part of the body portion 7, it is possible to provide the body portion 7 with a narrow portion 40 having a cross-sectional area smaller than that of the other portions.

Further, as shown in FIG. 10, the narrow portion 40 is formed into a constricted shape by forming the body portion 7 into a concave shape over the entire circumference along the inner surface shape of the mold for blow molding. It can also be a thing. By forming the narrow portion 40 into a constricted shape, the body portion 7 of the dispensing container 1 can be easily held by hand, and the content can be dispensed more easily.

When the pinch-off portion 9 of the bottom portion 8 is provided with an outside air introduction port 9a that opens in a slit shape, as shown in FIG. 10, uneven fitting portions are formed on both end portions of the pinch-off portion 9 in the longitudinal direction. This allows the slit-shaped outside air introduction port 9a to have a narrow opening area. As a result, when the body portion 7 is squeezed, the air between the outer layer body 2 and the inner layer body 3 is less likely to leak from the slit-shaped outside air introduction port 9a, and air leakage during the squeeze of the body portion 7 is suppressed. However, the pouring operation of the contents can be performed more easily.

It goes without saying that the present invention is not limited to the above-described embodiment and can be variously modified without departing from the gist thereof.

For example, in the above-described embodiment, the narrow portion 40 is formed by providing a pair of recessed portions 41 or pinch-off portions 43 in the cylindrical portion 7b of the body portion 7, but the narrow portion 40 is not limited to this. If the cross-sectional area is smaller than that of other portions, such as forming a narrow portion 40 by providing three or more recessed portions 41 or pinch-off portions 43 in the cylindrical portion 7b of the above, the form of the narrow portion 40 is Various changes are possible.

Further, the position, shape, number, and the like of the outside air introduction port are not particularly limited as long as they penetrate the outer layer body 2 and communicate with each other between the outer layer body 2 and the inner layer body 3. For example, in the present embodiment, in the case shown in FIG. 1, outside air introduction ports 5b and 9a are provided in the mouth 5 and the bottom 8 of the double container 4, respectively, and in the case shown in FIG. 6, the double container 4 is provided. Although the outside air introduction port 9a is provided only on the bottom portion 8, the outside air introduction port 9a is provided only on the bottom portion 8 of the double container 4 in the case shown in FIG. 1, and the opening of the double container 4 in the case shown in FIG. The outside air introduction ports 5b and 9a may be provided in the portion 5 and the bottom portion 8, respectively.

Further, in the above embodiment, the first check valve 24 has a tubular body 25 and a valve body 26, and the second check valve 28 moves up and down in the axial direction according to the pressure of the contents. Although it is configured as a three-point valve, the present invention is not limited to this, and various check valves 24 and 28 can be used.

Further, although the double container 4 is formed by blow molding, it is not necessarily limited to such a configuration, and for example, an inner layer body (an inner layer body) formed inside the outer layer body (outer container) separately from the outer layer body (outer layer body). An inner container) may be incorporated.

Further, in the above-described embodiment, the measuring cap 30 is attached to the pouring cap 11, but the measuring cap 30 may not be provided.

1 Injection container 2 Outer layer 3 Inner layer 4 Double container 5 Port 5a Male screw part 5b Outside air introduction port 5c Vertical groove 6 Cap assembly 7 Body 7a Shoulder part 7b Cylindrical part 8 Bottom 9 Pinch-off part 9a Outside air introduction port 10 Cover 10a Outer wall 10b Bottom wall 10c Opening 10d Check valve 11 Outlet cap 12 Inner plug 13 Valve member 15 Outer wall 15a Female thread 16 Top wall 16a Communication hole 17 Outlet cylinder 17a Outlet 18 Partition 18a Through hole 19 Seal Cylinder 20 Circular wall 21 Circulation port 23 Pipe 23a Lower end 23b Guard member 23c Slit 23d Suction hole 24 First check valve 25 Cylindrical body 25a Main body 25b Reduced diameter 26 Valve body 27 Holding 28 Second check valve 29 Intake Check valve 30 Measuring cap 31 Mounting cylinder 31a Female thread 32 Cylindrical wall 32a Male thread 33 Measuring cup 33a Measuring chamber 33b Inflow hole 34 Plug 34a Leg 35 Stopper 36 Rib 37 Partition wall 38 Lid 38a Hinge 40 Narrow Part 41 Recessed part 42 Enlarged part 43 Pinch-off part M Containment space L1 First liquid L2 Second liquid A Air

Claims (8)

An outer layer body having a bottle shape having a mouth, a body, and a bottom, which constitutes the outer shell of the container and is provided with an outside air inlet.
An inner layer body that is provided with a storage space for separated liquid contents and is housed in the outer layer body so that the volume can be reduced and deformed.
A pouring cap attached to the mouth portion, provided with a spout for pouring out the separated liquid contents housed in the storage space, and a pouring cap.
An inner plug, which is provided with a distribution port connected to the spout and is attached to the inside of the spout cap to cover the opening of the mouth.
A pipe connected to the distribution port, extending toward the bottom inside the storage space, and allowing the contents contained in the storage space to pass toward the distribution port.
It is provided at the distribution port and allows the flow of contents from the pipe through the distribution port to the spout, and allows the flow of contents from the spout to the pipe through the distribution port. With a check valve to block,
The body portion is provided with a narrow portion having a cross-sectional area smaller than that of other portions.
A pouring container characterized in that a suction hole for penetrating the pipe inward and outward is provided in a portion between the upper end and the lower end of the pipe and arranged inside the narrow portion. The pouring container according to claim 1, wherein the narrow portion is formed by providing a concave portion recessed toward the inside of the body portion in a part of the cylindrical body portion. The pouring container according to claim 1 or 2, wherein the body portion has an enlarged portion having a cross-sectional area larger than that of the narrow portion between the narrow portion and the mouth portion. The pouring container according to any one of claims 1 to 3, wherein the pouring cap is equipped with a measuring cap provided with a measuring chamber connected to the spout through an inflow hole. The measuring cap is placed between a closed position in which the inflow hole is closed by a plug provided in the pouring cap and an open position in which the plug is separated from the inflow hole and the inflow hole is opened. The dispensing container according to claim 4, which is movable in the vertical direction with respect to the dispensing cap. The pouring container according to any one of claims 1 to 5, wherein the outside air introduction port is provided in the mouth portion and the bottom portion. An air flow path that communicates between the communication hole for introducing outside air provided in the pouring cap and the outside air introduction port provided in the mouth portion is provided inside the pouring cap.
Intake air that allows the flow of air from the communication hole toward the outside air introduction port provided in the mouth portion and blocks the flow of air from the outside air introduction port provided in the mouth portion toward the communication hole. The dispensing container according to claim 6, wherein a check valve is provided on the dispensing cap. The pouring container according to any one of claims 1 to 5, wherein the outside air introduction port is provided only on the bottom portion.

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