JP2011230840A - Dispensing vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a content from being carelessly dispensed from a spout.SOLUTION: The dispensing vessel 1 includes a vessel body 13 including an inner vessel 11 accommodating the content W and having flexibility enough to be deflated and deformed by a decrease of the inner pressure and an elastically deformable outer vessel 12 in which the inner vessel 11 is mounted, and a spout cap member 16 attached to an opening 14 of the vessel body 13 and having a formed spout 15. There is formed on the spout cap member 16 a communication hole 30 making the outside and a suction hole 17b communicate with each other. The spout cap member is also provided with an air valve 31 opening the communication hole 30 to make the outside and the suction hole 17b communicate with each other when the dispensing vessel 1 is in an upright standing attitude, and moving by its own weight to clog the communication hole 30 and shield the communication of the outside and the suction hole 17b when the dispensing vessel 1 is in a spouting attitude with the spout 15 is directed downward.

Description

  The present invention relates to a dispensing container.

Conventionally, as shown, for example, in Patent Document 1 below, a flexible inner container that accommodates contents and squeezes and deforms as the internal pressure decreases, and the inner container is internally housed and elastically deformable. There is known a dispensing container that includes a container body that includes an outer container, and a dispensing cap member that is attached to the mouth of the container body and that has a dispensing outlet.
The outer container is formed with an intake hole through which the outside air is sucked into the inner container, and the dispensing cap member prevents the backflow of the contents into the inner container and the inflow of the outside air while preventing the inner pressure of the inner container. A first check valve that is operated by fluctuation to switch communication between the spout and the inside of the inner container and shut off the second check valve; and a second check valve that opens and closes the intake hole without causing air to flow out from the intake hole; It has.
In this dispensing container, when the container body is pressed toward the inside in the radial direction to increase the internal pressure of the inner container, the first check valve opens and the dispensing outlet communicates with the inside of the inner container. The contents of are poured out from the spout.
Then, when the above-described pressing is released, the first check valve is closed, the communication between the spout and the inner container is blocked, and the outer container tends to be restored and deformed while the inner container is deformed and deformed. At this time, the second check valve is opened by the negative pressure generated between the inner container and the outer container, and the outside air is sucked between the inner container and the outer container through the intake hole.

JP 2004-59131 A

However, the conventional dispensing container is provided with a second check valve that opens and closes the intake hole without causing air to flow out of the intake hole. For example, when the dispensing container is gripped, the internal pressure of the inner container is reduced. When the first check valve is opened by raising, the contents may be inadvertently poured out from the spout.
This problem may become particularly apparent when the container body is lightened (thin) in consideration of environmental problems.

  The present invention has been made in view of such circumstances, and provides a dispensing container that can prevent the contents from being inadvertently poured out from the dispensing outlet when the dispensing container is gripped. With the goal.

  In order to solve the above-described problems and achieve such an object, the dispensing container of the present invention includes a flexible inner container that accommodates the contents and deforms due to a decrease in internal pressure, and the contents. A container body provided with an outer container capable of being elastically deformed and equipped with a container, and a spout cap member that is attached to the mouth portion of the container body and formed with a spout, and the outer container includes: An air intake hole through which outside air is sucked is formed between the inner container, and the extraction cap member prevents backflow of contents into the inner container and inflow of outside air, while fluctuations in the inner pressure of the inner container. A pouring container having a check valve that operates to connect and shut off the pouring port and the inside of the inner container, and the pouring cap member communicates with the outside and the intake hole. Of this dispensing container The communication hole is opened to connect the outside and the intake hole in a standing posture, and the pouring container is moved by its own weight during the pouring posture of the pouring container with the pouring port facing downward to close the communication hole. And an air valve for blocking communication between the air intake hole and the intake hole.

According to the present invention, when the pouring container is set to the pouring posture described above, the air valve moves due to its own weight and closes the communication hole, thereby blocking communication between the intake hole and the outside. In this state, when the container body is pressed toward the inside in the radial direction, the internal pressure of the inner container rises, the check valve is opened, the outlet and the inner container are communicated, and the contents in the inner container are It is poured out from the outlet. At this time, if air is introduced into the space between the outer container and the inner container, pressing the container body toward the inner side in the radial direction also increases the internal pressure of the space. Since the air valve acts on the air valve through the intake hole, the air valve is pressed against the opening peripheral edge of the communication hole, and the communication hole is closed with a large sealing force.
When the above-described pressing is released, the check valve is closed, the communication between the spout and the inside of the inner container is shut off, and the outer container tries to be restored and deformed while the inner container is being reduced in volume. At this time, the negative pressure generated between the inner container and the outer container acts on the air valve through the intake hole, whereby the air valve is moved and the communication hole is opened. As a result, the outside and the intake hole communicate with each other through the communication hole, and the outside air introduced through the communication hole is sucked between the inner container and the outer container through the intake hole.
On the other hand, when the pouring container is in the upright posture, the air valve is located at a position where the communication hole is opened, and the outside and the intake hole communicate with each other. Even if it is pushed inward in the radial direction, the air between the inner container and the outer container reaches the outside through the intake hole and the communication hole, so that it is possible to suppress an increase in the internal pressure of the inner container, and the contents are spouted. Can be prevented from being inadvertently dispensed.

  Here, the dispensing cap member is formed with a storage chamber in which the air valve is movably mounted in the container axial direction and whose upper end is the communication hole. A valve seat on which the air valve is seated in a state where the communication hole and the intake hole are in communication with each other in the upright posture may be provided.

  In this case, the above-described action and effect are reliably achieved.

  According to the present invention, it is possible to prevent the contents from being inadvertently poured out from the spout when holding the pour container.

It is a principal part longitudinal cross-sectional view of the extraction | pouring container in an erect posture shown as one Embodiment which concerns on this invention. It is a principal part longitudinal cross-sectional view of the extraction | pouring container in the extraction | pouring attitude | position shown as one Embodiment which concerns on this invention. It is a principal part longitudinal cross-sectional view of the extraction | pouring container in the extraction | pouring attitude | position shown as other embodiment which concerns on this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the dispensing container 1 according to the present embodiment is a flexible inner container 11 that accommodates the contents W and is deformed by a decrease in internal pressure, and the inner container 11. Is provided with a container main body 13 including an outer container 12 that is elastically deformable, and a pouring cap member 16 that is attached to the mouth portion 14 of the container main body 13 and has a spout 15 formed therein.
In the illustrated example, the container body 13 is formed in a bottomed cylindrical shape, the dispensing cap member 16 is formed in a topped cylindrical shape, and these 13, 16 are arranged coaxially with the common shaft.
Hereinafter, this common axis is referred to as the container axis O, the side of the dispensing cap member 16 along the container axis O direction is referred to as the upper side, the bottom side of the container body 13 is referred to as the lower side, and the direction orthogonal to the container axis O is the diameter. The direction is referred to as a direction, and the direction around the container axis O is referred to as a circumferential direction.

In the illustrated example, the container body 13 is a so-called Delami bottle in which the inner container 11 is laminated so as to be peeled over almost the entire inner surface of the outer container 12.
The mouth portion 14 of the container main body 13 is formed in a two-stage cylindrical shape including an upper cylindrical portion 17 positioned on the upper side and a lower cylindrical portion 18 positioned on the lower side and formed with a larger diameter than the upper cylindrical portion 17. Has been.
A male screw portion 17a is formed on the outer peripheral surface of a portion (hereinafter referred to as an outer upper tube portion) 12a formed of the outer container 12 in the upper tube portion 17. In addition, an intake hole 17b through which outside air is sucked into the inner container 11 is formed in a portion of the outer upper cylinder portion 12a located below the male screw portion 17a.

The inner peripheral surface of the outer upper cylindrical portion 12a is a smooth cylindrical surface, and a portion of the upper cylindrical portion 17 constituted by the inner container 11 (hereinafter referred to as an inner upper cylindrical portion) 11a is formed on the inner peripheral surface. Are stacked. Moreover, the upper end part of the inner upper cylinder part 11a is turned back on the outer side of radial direction, and is arrange | positioned on the upper end opening edge of the outer upper cylinder part 12a.
The container body 13 is formed, for example, by blow molding a co-extruded two-layer parison, the outer container 12 is made of polyethylene resin, and the inner container 11 is not compatible with the polyethylene resin. It is made of polyamide synthetic resin.

  The dispensing cap member 16 prevents the backflow of the contents W and the inflow of outside air into the inner container 11 while the cap body 19 is screwed into the mouth portion 14 of the container body 13, and changes in the internal pressure of the inner container 11. And a check valve 20 that switches between the communication between the spout 15 and the inside of the inner container 11 and the blocking thereof.

  The cap main body 19 is formed in a top tube shape including a top wall portion 19a and a peripheral wall portion 19b, and an extraction tube 19c is erected upward from the top wall portion 19a. The upper end opening of the pouring cylinder 19 c is the pouring port 15, and the lower end opening is opened in the cap body 19. In the illustrated example, the dispensing cylinder 19c is disposed coaxially with the container axis O. Moreover, the internal thread part 19d screwed together with the external thread part 17a of the container main body 13 is formed in the internal peripheral surface of the surrounding wall part 19b. Furthermore, the lower cylinder part 18 of the opening part 14 of the container main body 13 is fitted in the airtight state in the lower end part of the surrounding wall part 19b. Thereby, the intake hole 17b is prevented from communicating with the outside of the dispensing container 1 from the lower side of the peripheral wall portion 19b of the cap body 19.

Further, a lid body 23 that opens and closes the spout 15 is connected to the cap body 19 via a hinge portion 22. Further, a cylindrical body 19e having a diameter larger than that of the extraction cylinder 19c is provided on the top wall portion 19a so as to protrude downward coaxially with the container axis O.
The lid body 23 is formed in a top cylinder shape, and a double cylinder-shaped plug body 23a is projected downward from the top wall portion thereof, and the inner cylinder thereof is an extraction cylinder 19c of the cap body 19. The outer cylinder is removably fitted into the inside, and the outer cylinder is externally fitted to the dispensing cylinder 19c.

  The check valve 20 is arranged on the upper end opening edge of the container body 13, and the substrate member 25 in which the connection hole 24 communicating with the inner container 11 is formed, and the connection member 24 is arranged on the substrate member 25. And a valve body 26 for opening and closing. In the illustrated example, the check valve 20 is disposed in the cap body 19.

  The substrate member 25 is disposed coaxially with the container axis O, and the connection hole 24 is also disposed coaxially with the container axis O. In addition, a butt tube portion 34 that is disposed coaxially with the container shaft O and butts against the lower end edge of the tube body 19e of the cap body 19 protrudes from a portion of the substrate member 25 that is located radially outside the connection hole 24. It is installed. Further, the outer peripheral edge portion of the substrate member 25 is fitted into a portion located above the container main body 13 in the peripheral wall portion 19b of the cap main body 19, and penetrates in the radial direction and faces downward. A fitting tube portion 28 in which a plurality of open air connection holes 27 are formed at intervals in the circumferential direction protrudes upward. The air connection hole 27 communicates with the intake hole 17 b through between the mouth portion 14 of the container main body 13 and the peripheral wall portion 19 b of the cap main body 19.

  The valve body 26 is connected to a fitting cylinder 35 fitted in the cylinder 19e of the cap body 19 and the butting cylinder part 34 of the substrate member 25, and is connected to the fitting cylinder 35 via a hinge part 29a. A plate-like on-off valve 29 that communicates and blocks the inside of the fitting cylinder 35 and the connection hole 24 of the board member 25 is provided. The inner diameter of the fitting cylinder 35 is larger than the inner diameter of the connection hole 24. The inside of the fitting cylinder 35 communicates with the spout 15. The outer peripheral edge portion of the on-off valve 29 is disposed on the upper surface of the substrate member 25 at a portion located between the butt tube portion 34 and the connection hole 24. As a result, the on-off valve 29 is prevented from rotating downward around the hinge portion 29 a and entering the connection hole 24.

In the present embodiment, the dispensing cap member 16 is formed with a communication hole 30 that communicates the outside of the dispensing container 1 with the intake hole 17b. In the illustrated example, the communication hole 30 is formed in a portion of the top wall portion 19a of the cap main body 19 of the dispensing cap member 16 that is located on the outer side in the radial direction from the cylindrical body 19e.
Further, the pouring cap member 16 has a communicating hole 30 that is open when the pouring container 1 is in an upright posture so that the outside and the intake hole 17b communicate with each other, and the pouring outlet 15 is directed downward. An air valve 31 is provided that moves by its own weight during the pouring posture to close the communication hole 30 and block communication between the outside and the intake hole 17b.

  Here, in the present embodiment, a storage chamber 32 is provided in the cap body 19 of the dispensing cap member 16 so that the air valve 31 is movably mounted in the container axis O direction and the upper end is a communication hole 30. ing. In the example shown in the drawing, a pair of wall bodies arranged at intervals in the circumferential direction are provided projecting downward on the peripheral edge of the opening of the communication hole 30 in the top wall portion 19a of the cap body 19, and the storage chamber 32 is an annular space between the inner peripheral surface of the upper end portion of the peripheral wall portion 19b of the cap body 19 and the outer peripheral surface of the cylindrical body 19e, of the portion divided in the circumferential direction by the pair of wall bodies. The length is a short part. Thereby, the inner surface that defines the storage chamber 32 includes an inner peripheral surface of the upper end portion of the peripheral wall portion 19b of the cap body 19, an outer peripheral surface of the cylindrical body 19e, and surfaces facing each other in the circumferential direction of the pair of wall bodies. It has become. The storage chamber 32 is a hole having a circular shape in plan view extending in the container axis O direction. Further, the storage chamber 32 communicates with the air connection hole 27 through the space between the butting tube portion 34 and the fitting tube portion 28 in the substrate member 25 of the check valve 20.

  Further, in the present embodiment, the storage chamber 32 is provided with a valve seat 33 on which the air valve 31 is seated in a state where the communication hole 30 and the intake hole 17b are in communication when the pouring container 1 is in the upright posture. . In the illustrated example, the air valve 31 is a sphere, and the valve seat 33 is configured by a plurality of protrusions disposed on the inner surface of the storage chamber 32 at intervals in the circumferential direction of the storage chamber 32. When the pouring container 1 is in the upright posture, the air valve 31 is placed on the plurality of protrusions in a state where the communication hole 30 and the air connection hole 27 communicate with each other through the gap between the protrusions in the valve seat 33. It is arranged so as to be separable. Thus, when the pouring container 1 is in the upright posture, the intake hole 17 b passes between the mouth portion 14 of the container body 13 and the peripheral wall portion 19 b of the cap body 19, through the air connection hole 27, the storage chamber 32, and the communication hole 30. It communicates with the outside. The air valve 31 is loosely fitted in the storage chamber 32, and can move between the valve seat 33 and the communication hole 30 by the weight of the air valve 31.

  Next, the operation of the dispensing container 1 will be described.

First, as shown in FIG. 2, when the pouring posture is set so that the pouring outlet 15 faces downward, the air valve 31 is lowered by its own weight to close the communication hole 30, thereby Communication between the hole 17b and the outside is blocked. In this state, when the container body 13 is pressed toward the inner side in the radial direction, the inner container 11 and the outer container 12 are deformed and deformed, the internal pressure of the inner container 11 is increased, and the valve body 26 of the check valve 20 is opened and closed. The valve 29 rotates upward around the hinge portion 29a, and the connection hole 24 of the substrate member 25 is opened. Thereby, the inside of the inner container 11 and the spout 15 are communicated with each other through the connection hole 24, and the contents W in the inner container 11 are poured out from the spout 15.
At this time, when air is introduced into the space between the inner container 11 and the outer container 12, when the container body 13 is pressed toward the inside in the radial direction, the internal pressure of the space also increases. Since this internal pressure acts on the air valve 31 through the air connection hole 27 and the storage chamber 32 between the intake hole 17b, the mouth portion 14 of the container body 13 and the peripheral wall portion 19b of the cap body 19, the air valve 31 is stored in the storage chamber. It press-contacts to the opening peripheral part of the communicating hole 30 among 32 inner surfaces. As a result, the communication hole 30 is closed with a large sealing force. Therefore, when the container body 13 is pressed toward the inside in the radial direction when the air is introduced into the space between the inner container 11 and the outer container 12 in the dispensing container 1 in the dispensing attitude, the contents The internal pressure of the vessel 11 is immediately increased.

When the above-described pressing is released, the opening / closing valve 29 of the valve body 26 of the check valve 20 is rotated downward around the hinge portion 29a by the restoring deformation of the hinge portion 29a, so that the connection hole 24 of the board member 25 is restored. Is closed from above, the communication between the spout 15 and the inside of the inner container 11 is blocked, and the outer container 12 tends to be restored and deformed while the inner container 11 is reduced in volume.
At this time, the negative pressure generated between the inner container 11 and the outer container 12 is stored through the intake hole 17b, between the mouth portion 14 of the container body 13 and the peripheral wall portion 19b of the cap body 19, and through the air connection hole 27. By acting on the air valve 31 in the chamber 32, the air valve 31 is sucked upward, separated from the communication hole 30, and the communication hole 30 is opened. As a result, outside air is communicated between the communication hole 30, the storage chamber 32, the air connection hole 27, between the mouth portion 14 of the container main body 13 and the peripheral wall portion 19 b of the cap main body 19, and through the intake hole 17 b. Inhaled between.

  On the other hand, when the dispensing container 1 is in the upright posture, the air valve 31 is seated on the valve seat 32 in a state where the communication hole 30 and the intake hole 17b are in communication with each other, and thus the container body 13 is gripped in this state. Even if the outer container 12 is pushed inward in the radial direction, the air between the inner container 11 and the outer container 12 remains in the intake hole 17b, the mouth portion 14 of the container body 13, and the peripheral wall portion 19b of the cap body 19. In the meantime, by reaching the outside through the air connection hole 27, the storage chamber 32 and the communication hole 30, it becomes possible to suppress an increase in the internal pressure of the inner container 11, and the contents W are inadvertently poured out from the spout 15. Can be prevented.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, as the container main body 13, a so-called Delami bottle in which the inner container 11 is detachably laminated over almost the entire inner surface of the outer container 12 is shown, but instead, the inner container is provided in the outer container. A container main body that is inserted and the outer container is squeezed and deformed by introducing outside air between the outer container and the inner container as the contents are poured out may be adopted.
Further, the configuration of the check valve 20 is not limited to the above-described embodiment, and may be appropriately changed, for example, disposed outside the cap body 19.
Further, in the above embodiment, the male thread portion 17 a is formed on the upper cylindrical portion 17 of the mouth portion 14 of the container body 13, and the female thread portion 19 d is formed on the peripheral wall portion 19 b of the cap body 19. The cap main body 19 of the pouring cap member 16 is screwed to the bottom cylinder portion 18 instead of forming the male screw portion 17a in the mouth portion 14 of the container main body 13 as shown in FIG. The engagement recess 18a is formed on the outer peripheral surface of the cap body 19, and the engagement recess 18a is engaged with the inner peripheral surface of the lower end portion of the peripheral wall portion 19b without forming the female screw portion 19d on the peripheral wall portion 19b of the cap body 19. The pouring container 2 which forms the joint convex part 19f and undercut-fits the cap main body 19 of the pouring cap member 16 to the mouth part 14 of the container main body 13 may be adopted. In addition, the engagement recessed part 18a and the engagement convex part 19f may be extended over the perimeter, and may be intermittently dotted.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

  The contents can be prevented from being inadvertently poured out from the spout when the dispensing container is gripped.

DESCRIPTION OF SYMBOLS 1, 2 Outlet container 11 Inner container 12 Outer container 13 Container main body 14 Port 15 Outlet 16 Outlet cap member 17b Intake hole 20 Check valve 30 Communication hole 31 Air valve 32 Storage chamber 33 Valve seat O Container shaft W Contents object

Claims (2)

A highly flexible inner container that accommodates contents and squeezes and deforms due to a decrease in internal pressure; and a container body that includes the inner container and an outer container that is elastically deformable;
A pouring cap member attached to the mouth of the container body and having a spout formed therein;
With
The outer container is formed with an intake hole for sucking outside air between the inner container,
The dispensing cap member is operated by the internal pressure fluctuation of the inner container while preventing the backflow of contents and the inflow of outside air into the inner container, and communication between the outlet and the inner container is blocked. A dispensing container with a check valve for switching between
The dispensing cap member is formed with a communicating hole that communicates the outside with the intake hole, and the communicating hole is opened to communicate the outside with the intake hole when the dispensing container is in an upright posture. And an air valve that is moved by its own weight during the pouring posture of the pouring container with the pouring port facing downward to close the communication hole and block communication between the outside and the intake hole. Characteristic pouring container. A dispensing container according to claim 1,
The dispensing cap member is provided with a storage chamber in which the air valve is movably mounted in the container axial direction and whose upper end is the communication hole. The storage chamber has an upright position for the dispensing container. A pouring container, characterized in that a valve seat on which the air valve is seated is disposed in a state where the communication hole and the intake hole are in communication with each other in a posture.

Images