JP6547242B2 - container - Google Patents

Description

  The present invention relates to a container capable of discharging a predetermined amount of contents by pressing while maintaining high sealing performance.

BACKGROUND Conventionally, containers having a flexible outer wall formed in multiple layers are known. Among them, as an example of a structure excellent in the sealing property of contents such as food and cosmetics, a prior art of a laminated peeling container is known (see, for example, Patent Document 1).
According to this prior art, after the container is squeezed and deformed to discharge the contents out of the container, when the deformation of the container is released, the check valve provided at the lower portion of the container is opened to open the outer layer and the inner layer of the container. The air is taken in during the process to restore the outer layer of the container to its original shape. On the other hand, the flow of air from the outside into the inner layer of the container is blocked by closing the check valve provided in the opening, so the shape of the inner layer does not follow the restoration of the shape of the outer layer. Therefore, it is possible to maintain the outer shape and prevent air from entering the inner layer, thereby preventing deterioration of the contents.

Moreover, although it is not a multilayer structure, in the so-called pump type discharge container, the container which can discharge the content of a container by desired fixed quantity every is proposed (for example, refer patent document 2).
According to such a discharge container, the content of the set amount can be discharged to the outside of the container by pushing the pump head once to a pressable position.

Unexamined-Japanese-Patent No. 2-258563 JP, 2012-101121, A

  However, according to the former prior art, although it is possible to maintain the sealing property of the container to prevent deterioration of the contents, the contents to be discharged according to the state of the pressure of the container, the remaining amount of the contents, etc. It is difficult to discharge only the desired fixed amount because the amount of

  On the other hand, according to the latter prior art, it is possible to discharge a desired fixed amount from the container. However, since this container is not provided with a mechanism corresponding to the check valve in the former prior art, the container can not be kept airtight and deterioration of the contents can not be avoided.

  Then, this invention makes it a subject to provide the container which can discharge the content of a fixed quantity by pressing, maintaining high sealing performance.

In order to solve the above-mentioned subject, the present invention adopts the following solution means.
That is, the container according to the present invention comprises a container main body comprising an outer layer which can be restored to a container shape along with removal of the external force while receiving external force and a bag-shaped inner layer for containing contents. An outside air inlet for introducing air into the inner space formed between the inner layer and the outer layer, and an outside air inlet for preventing air from flowing out from the inner space to the outside through the outside air inlet. Through the introduction valve that allows air to flow into the internal space via the discharge port, the discharge port that discharges the contents contained in the container body, and the flow out of the contents from the discharge port while the container from the discharge port It has a discharge valve which prevents outside air from flowing into the inside, and a pressing portion which is formed in the outer layer and which restricts the deformation of the outer layer due to the application of external force in a preset mode.

  As described above, according to the present invention, the deformation of the outer layer is limited to a preset mode so that the content of a predetermined amount can be discharged, and at the time of using the container, the pressing portion Will guide you. By adopting such a configuration, it is possible to discharge a predetermined amount of content from the container by applying pressure at a guided position and pressing it to a position (depth) where deflection can be cut off by regulation. . Since a constant amount can be discharged only by pressing, it is not necessary to measure and take out an appropriate amount with another container such as a cap as in a conventional container, and the container can be used efficiently.

In the present invention, the pressing portion is provided as a pair on each of the two side surfaces of the container body forming a pair, and the user presses the pair of pressing portions from both directions while holding the container body with one hand. Preferably, they are provided at possible positions.
According to this aspect, it is possible to hold and use the container with one hand so as to be able to apply a force more naturally when discharging the contents.

In addition, the discharge port preferably has a nozzle whose tip is bent substantially horizontally or obliquely downward.
According to this aspect, immediately after the contents project substantially horizontally or obliquely downward through the nozzle, the contents are discharged slightly downward from the initial direction by the action of weight. Therefore, when discharging the contents, it is not necessary to take time and effort to turn the container upside down or to tilt it. In addition, when contents that pour a fixed amount into the mouth are stored, it is not necessary to work a single dose with a separate container each time, just pressing the container by bringing the tip of the nozzle close to the mouth You can pour a certain amount into your mouth.

Furthermore, it is preferable that the outside air introduction port is provided on the side surface of the container main body and at a position above the pressing portion or at the bottom of the container main body.
According to this aspect, the outside air introduction port and the introduction valve for closing the outside air introduction port are provided at a position where the hand is difficult to touch when gripping or pressing the container, so the outside air introduction port is accidentally closed to enter the inside of the container It is possible to avoid a situation that would impede the inflow of air.

  As described above, according to the container of the present invention, the deformation mode of the container body (outer layer) is set in advance, in addition to exhibiting high sealing performance by the action of the two valves of the introduction valve and the discharge valve. When the container is used, by pressing the container to a depth regulated by a pressing portion provided on the surface, it is possible to discharge a certain amount of contents. Furthermore, if the discharge port has a nozzle whose tip is bent substantially horizontally or obliquely downward, it is possible to save time and effort of turning the container upside down when discharging the contents, and use the container more efficiently. can do.

It is a perspective view showing the lamination exfoliation container of one embodiment. It is a front view, a top view, and a bottom view of a lamination exfoliation container of one embodiment. It is a longitudinal cross-sectional view which shows the state which cut | disconnected the lamination peeling container of one Embodiment in the thickness direction. It is a longitudinal cross-sectional view which shows the state which cut | disconnected the lamination peeling container of one Embodiment in the width direction. It is a figure explaining the manufacturing process (until it takes out from a metal mold | die) of a lamination peeling container. It is a figure explaining the continuation of the manufacturing process shown in FIG. It is a figure explaining the process of replacing to a part of manufacturing process shown in FIG. It is a figure which shows the state of the air chamber and internal pressure accompanying the press of a lamination peeling container, and its cancellation | release.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the following embodiments, a laminated peeling container is used as an example of a container having a multilayer structure, but the present invention is not limited to this example.

FIG. 1 is a perspective view of the delamination container 1 of one embodiment. As shown in this figure, the delamination container 1 is roughly divided into a container body 2 and a lid 4.
The container main body 2 has an opening at the upper end and a bottom at the lower end, and the opening is closed by the lid 4 to maintain the sealing performance of the laminated peeling container 1. Further, on the side surface of the container body 2, a pressing portion 6, an introduction valve, and an outside air introduction port 20 are formed. The pressing portions 6 are provided in pairs on the two side surfaces of the container body 2. The laminated peeling container 1 is held so as to hold the pair of pressing portions 6 in both directions with one hand from both directions, and is released after the pressing portions 6 are pressed. The contents contained inside are discharged to the outside of the delamination container 1. The mechanism of the inlet valve 8 and the mechanism of the outside air inlet 20 associated with the pressing of the pressing portion 6 and the release thereof will be described in detail later.

  The lid 4 has a discharge port and a discharge valve (both not shown in FIG. 1). Among these, the discharge port discharges the contents contained in the container main body 2, and the discharge valve is a check valve that controls the discharge of the contents from the discharge port. The discharge port has, for example, a nozzle bent horizontally or obliquely downward at its tip. When the pressing portion 6 is pressed with a finger, pressure is applied to the inside of the container body 2 to push out the contents from the mouth, but since the mouth is closed by the lid 4, it is pushed out The contents first flow into the lid 4. Along with this, the discharge valve provided on the lid 4 is opened, and the contents are discharged from the discharge port, more specifically, to the outside of the delamination container 1 through the nozzle provided at the tip thereof. Ru.

FIG. 2 shows a view of the delamination container 1 of one embodiment as viewed from three directions.
(A) in FIG. 2 is a front view of the delamination container 1. As shown in this figure, a pressing portion 6 is provided on the surface of the container body 2 (front and back in this figure). The pressing portion 6 is in the shape of a bowl-shaped recess when viewed from the front (or the back) of the container body 2, and the inner edge portion of the recess is gradually inclined toward the center of the container body 2. Is formed. In addition, the central portion of the recess is flat bottomed, and the pressing portion 6 is configured such that when the user holds the peeling container 1 with one hand and presses it in both directions, the pressing portion 6 It can be guided (directed) to the central part. Then, by pushing the container body 2 into a position where the container body 2 is bent at the guided position, the laminated peeling container 1 can discharge a certain amount of contents to the outside thereof. In addition, about the mechanism in which the lamination peeling container 1 discharges a fixed quantity, it mentions later in detail.

  (B) in FIG. 2 is a plan view of the delamination container 1. The container body 2 is provided with an outside air inlet 20 and an introduction valve 8 for controlling the introduction of air from the outside air inlet 20 at the upper side, and a lid 4 is provided so as to cover the mouth. . The lid 4 has a nozzle 10 at the tip of a discharge port for discharging the contents. In addition, in this figure, although the nozzle 10 is horizontally provided in the front toward the side in which the external air introduction port 20 is formed, it is not fixed in this direction, but is formed rotatably left and right There is.

Here, by bending the tip of the nozzle 10 substantially horizontally or obliquely downward, immediately after the contents are ejected substantially horizontally or obliquely downward through the nozzle 10, the content is discharged slightly curving downward from the original direction. It will be done. Therefore, it is possible to discharge the contents only by pressing the container main body 2 without turning the laminate peeling container 1 upside down or tilting it.
This form is particularly suitable, for example, for containing mouthwashes and liquid medicines (cold medicine, mouthwash, etc.). Conventionally, as a method of using these solutions, a method is generally adopted in which the container is tilted to pour one volume of the volume onto the lid of a container provided with a measuring wire, and then carried to the mouth. By using the container 1, both the step of tilting the container and the step of measuring the volume of one dose are unnecessary, and it is possible to pour an appropriate amount directly into the mouth.

  (C) in FIG. 2 is a bottom view of the delamination container 1. The container body 2 is formed by blow molding. Although the detailed steps of the blow molding will be described later, a pinch-off formed at the bottom of the container body 2 after removing the burrs and the like generated around the outer layer 12 and the inner layer 14 by heat fusion in the blow molding process. The portion is formed in a direction horizontal to the front.

FIG. 3 is a longitudinal cross-sectional view (cross-sectional view along the line III-III in (B) in FIG. 2) showing a state in which the layered peeling container 1 of one embodiment is cut at the center in the thickness direction of the container body 2.
As shown in this figure, the container body 2 is formed of an outer layer 12 (outer shell) and an inner layer 14 (inner bag) which are laminated in a peelable manner. The outer layer 12 and the inner layer 14 are blow-molded by laminating non-adhesive resins in order to make them removable.

For example, in addition to polyethylene (PE), polypropylene (PP) and polyethylene terephthalate (PET), an ethylene-propylene copolymer, a mixture thereof, and the like are used for the outer layer 12. The outer layer 12 is preferably formed thicker than the inner layer 14 in order to exert high resilience. The outer layer 12 is not limited to a single-layer structure, and may have a multi-layer structure. For example, the configuration may be such that both sides of the repro layer formed by recycling the burrs generated at the time of molding of the container are sandwiched by the PP layers.
In the present embodiment, the outer layer 12 comprises a random copolymer layer consisting of a random copolymer between propylene and another monomer. By comprising the random copolymer of the specific configuration, the shape restorability, transparency and heat resistance of the outer layer 12 can be improved.

  In addition to polypropylene (PP), polyethylene (PE) having a barrier property against odor, oxygen and water vapor, ethylene vinyl alcohol resin (EVOH), cyclic polyolefin resin (COP) or the like is used for the inner layer 14. The inner layer 14 preferably has a multi-layer structure. For example, the PE layer is disposed on the innermost surface in contact with the contents, and the EVOH layer is disposed on the outermost surface in contact with the outer layer. Further, in order to bond these layers, for example, a layer structure in which an adhesive layer using a mixture of low density polyethylene (LDPE) or linear low density polyethylene (LLDPE) and acid-modified polyethylene is disposed between both layers It is also good. By providing the EVOH layer, the gas barrier properties of the inner layer 14 and the releasability from the outer layer 12 can be improved. Moreover, it is possible to further improve the oxygen barrier property of the inner layer 14 by making the EVOH layer contain an oxygen absorbing material.

By the way, an outside air introduction port 20 is formed in the upper layer (shoulder portion) of the container body 2 in the outer layer 12, and the outside air introduction port 20 is closed by the introduction valve 8. The outside air introduction port 20 communicates the air chamber 22 formed by the separation of the inner layer 14 from the outer layer 12 and the outside of the container body 2 and introduces air from the outside of the container body 2. The introduction valve 8 prevents the flow of air from the air chamber 22 when the outer layer 12 is pressed and deformed, while when the pressure is released and the shape of the outer layer 12 is restored, the air from the outside is released. Play a role in permitting the inflow of
The introduction valve 8 includes a locking portion located outside the container body 2, a plug portion positioned in the air chamber 22, and a shaft portion connecting the locking portion and the plug portion (all without reference numeral) ). The locking portion is formed larger than the area of the outside air introduction port 20 in order to prevent the introduction valve 8 from coming off the outside air introduction port 20 and falling into the air chamber 22. Further, a groove is formed inside the locking portion. When the introduction valve 8 is in the fixed position, that is, when the outer layer 12 is not pressed, the locking portion covers the outside air introducing port 20, but the outside air introducing port 20 is blocked by the groove formed inside the locking portion. Therefore, communication between the air chamber 22 and the outside of the container body 2 is maintained.
When the outer layer 12 is pressed, the applied pressure is transmitted to the inside of the air chamber 22 and the internal pressure becomes higher than the external pressure, so the air in the air chamber 22 tends to flow out of the container body 2. With the pressure difference and the flow of air, the introduction valve 8 moves outward, and the plug portion closes the outside air introduction port 20 to prevent the flow of air from the air chamber 22. Then, when the pressing of the outer layer 12 is released, the outer layer 12 tries to restore its original shape by its own elasticity. With this movement, the introduction valve 8 moves inward and returns to the home position, and the closure of the outside air introduction port 20 by the plug portion is released. Then, air is drawn into the air chamber 22 from the outside air introduction port 20 until the outer layer 12 returns to the original shape.

  The upper end portion of the container body 2 is formed as a mouth from which the contents are filled. On the outer wall surface of the mouth, a thread that protrudes in a stripe shape in the circumferential direction is formed. A concave groove (female screw) corresponding to the thread of the mouth is formed on the inner wall surface of the lid 4. The lid 4 is guided by a screw thread and screwed into the mouth by engagement of the screw thread and the groove, and is fixed to the container body 2.

  Further, a seal member 26 is adhered to the lid 4 along the corners of the inner top portion and the grooves of the inner wall surface. Thereby, since the seal member 26 is crimped to the screw thread and the valley bottom when the lid 4 is screwed into the mouth, a slight gap generated between the screw thread and the groove is also closed, and the fitting state of these is improved. As a result, the laminated peeling container 1 can exhibit better sealing performance.

  FIG. 4 is a vertical cross-sectional view showing in detail the cross section obtained by cutting the laminated peeling container 1 of one embodiment at the center in the width direction of the container body 2 (cross-sectional view along line IV-IV in FIG. 2C) It is. Among them, (A) in FIG. 4 represents a state before (or after the pressure was released) the laminated peeling container 1 is pressed, and (B) in FIG. 4 represents a state in which the laminated peeling container 1 is pressed. There is.

  The container body 2 is formed with a pair of pressing portions 6 on two side surfaces forming a pair. The pressing portion 6 guides the position to be pushed when the user holds the peeling container 1 with one hand and pushes the side surface from both directions based on the shape. The container body 2 deforms into a predetermined shape when an external force is applied at this position, but does not deform further. Specifically, a predetermined amount of contents is removed from the storage chamber 24 by pressing the pair of pressing portions 6 to a position where they are completely bent and in contact with each other, that is, a depth at which the amount of deformation is regulated. It is formed so that it can be made to discharge outside of.

Here, with the fixed amount, the container body 2 sets the three-dimensional area (hatched portion) sandwiched between the pair of pressing portions 6 shown in FIG. 4A as the movable range of the pressing portions 6. By being crushed, it corresponds to the volume of the content discharged from the container 1 according to the total amount of deformation obtained at that time. Moreover, the container main body 2 is formed so that a fixed shape may be maintained in the state where the pressing portion 6 is pressed and the state where the pressing is released. As shown in FIG. 4B, when the peeling container 1 is pressed from both sides at the position of the pressing portion 6, the container body 2 is deformed from the initial shape shown by a two-dot chain line in the drawing, and the internal pressure increases. Do. Thereby, the discharge valve 16 is opened, and the content is pushed out and discharged to the outside of the lamination peeling container 1.
That is, the difference between the volume of the container main body 2 in a state where the pressing portion 6 is not pressed and the volume of the container main body 2 in a state where the portion sandwiched between the pressing portions 6 is crushed and the discharge valve 16 is open The container body 2 is designed and manufactured so as to have a volume corresponding to one serving of the content discharged from the peeling container 1. As a result, the user can discharge a predetermined amount of content simply by pressing the pressing portion 6, and it is possible to save time and trouble of pouring a measuring cap or the like each time it is used and measuring one dose. It becomes.

The lid 4 is provided with the discharge port 18 and the discharge valve 16 described above. When the pressure part 6 is pressed and pressure is applied to the container main body 2, the container main body 2 and thus the inner layer 14 is compressed, the pressure is transmitted to the storage chamber 24 (= the inner side of the inner layer 14) and the discharge valve 16 opens. . Then, the content stored in the storage chamber 24 is pushed out from the discharge port 18 by a predetermined amount by pressure, and discharged from the nozzle 10 to the outside of the delamination container 1 through the discharge valve 16.
The discharge valve 16 allows only the outflow of contents from the storage chamber 24 to the outside, and blocks the inflow of substances from the outside into the storage chamber 24 including air.

  As described above, the delamination container 1 has two valves, the inlet valve 8 and the outlet valve 16, which play an important role in realizing the sealing function and the function of discharging a fixed amount. The mechanism by which the two valves operate with the pressing of the container body 2 and the release thereof will be described in detail later.

FIG. 5 is a schematic view for explaining the steps from setting a resin as a material in a mold to taking the blow-molded product out of the mold in the process of manufacturing the delamination container 1 by blow molding. In (A) to (D) in FIG. 5, in order to facilitate understanding of the molding process, only a portion (laminated parison P and a blow-molded article) corresponding to the container main body 2 is shown in cross section.
In FIG. 5 (A): The molten resin is extruded from the die D into air to form a laminated parison P having a substantially cylindrical shape. The laminated parison P is disposed between the pair of split dies K.
In FIG. 5 (B): The laminated parison P is sandwiched between the divided dies K by clamping the pair of divided dies K. Then, after blow molding, the blow nozzle B is inserted into the opening on the side to be the mouth of the container body 2, and added into the cavity of the split mold K (= inside of the laminated parison P sandwiched by the split mold K). Blow in pressurized air.
In FIG. 5 (C): The blow nozzle B is removed, the split mold K is opened, and the blow molded product is taken out.
In FIG. 5 (D): The blow-molded product taken out is heat-fused and pinched off by the laminated parison P sandwiched between the split molds on the side to be the bottom of the container body 2 later. At this stage, unnecessary burrs (so-called "lower burrs") generated below the pinch off portion are removed.
In FIG. 5 (D '): The external appearance of the blow-molded article which removed the lower burr | flash is represented with the front view. As shown in this figure, the burrs are not removed but left in the portion of the container body 2 which will later become the mouth. The remaining burrs are not removed at this stage because they are used in the next step (pre-stripping).

FIG. 6 is a schematic view for explaining from the preliminary peeling of the outer layer 12 and the inner layer 14 to the mounting of the introduction valve 8 which is a continuation of the manufacturing process of the laminated peeling container 1 shown in FIG.
In FIG. 6 (A): The blow nozzle B is inserted into the burr portion left above the mouth of the container body 2 and pressurized air is blown between the outer layer 12 and the inner layer 14 to form the outside air inlet 20. The inner layer at the position where the introduction valve 8 is provided is peeled off from the outer layer. By pre-peeling the outer layer 12 and the inner layer 14 in this manner, it is easy to carry out the subsequent step, that is, the step of forming the outside air inlet 20 and mounting the inlet valve 8.
In FIG. 6 (B): The heat pipe H is pressed against the shoulder portion of the container body 2 and the outer layer 12 is perforated to form the outside air introduction port 20. In addition, you may perforate instead of the heat pipe H using another perforation | piercing apparatus, for example, a pipe cutter etc. As shown in FIG.
In FIG. 6C, after the introduction valve 8 is attached to the outside air introduction port 20 formed in the outer layer 12, the cylindrical burr left above the opening is removed. In addition, the order of the said process is exchangeable and you may mount | wear with the inlet valve 8 after excising a burr | flash.

FIG. 7 is a schematic view illustrating steps which can be substituted for (A) to (B) in the manufacturing process of the laminated peeling container 1 shown in FIG.
In FIG. 7 (A1): A suction device S is inserted into the mouth side of the container body 2, and the air inside the inner layer 14 is sucked to reduce the pressure inside the inner layer 14. Then, simultaneously with this, the cutter SC with a suction device is brought close to the shoulder of the container body 2. At this stage, the outer layer 12 and the inner layer 14 have not been prepeeled yet.
In FIG. 7 (A2): A cutter SC with a suction device is lightly pressed on the shoulder of the container body 2 to form a small hole. Since the inside of the inner layer 12 is decompressed, when the cutter SC with a suction device penetrates the outer layer 12, air flows in from the small hole formed in the outer layer 14 and the inner layer 14 peels off from the outer layer 12. In this way, preliminary peeling is performed. In addition, if the cut-out piece cut out is formed in the outer layer 12, it will be immediately attracted | sucked by cutter SC with a suction device.
In FIG. 7 (B): The heat pipe H is pressed against the formed small hole to expand the diameter of the hole to form the outside air introduction port 20. When the hole formed in the previous step (A2) has a diameter sufficient for mounting the introduction valve 8 and already functions as the outside air introduction port 20, the step is unnecessary.

FIG. 8 is a view showing the state of the air chamber 22 and the internal pressure associated with the pressing of the delamination container 1 and the release thereof. In addition, although illustration of the press part 6 is abbreviate | omitted for convenience of explanation here, the actual form is as being shown by FIG.
[Principle in which air is introduced into the air chamber 22 and the contents C are discharged from the layer peeling container 1]
In FIG. 8 (A): The layer peeling container 1 discharges a fixed amount from the contents stored in the storage chamber 24 by being pushed in at the position of the pressing portion 6 until the container body 2 is deformed to the preset mode. It is a container used by letting it go (Fig. 4). The storage chamber 24 (= the inner side of the inner layer 14) is sealed by a discharge valve 16 (not shown in FIG. 8). As shown in this figure, at the stage before the start of use, the content C is filled in the storage chamber 24 with almost no gap. Further, the introduction valve 8 is in a fixed position where the closing of the outside air introduction port 20 is released.
In FIG. 8 (B): At the start of use, the content C is substantially full of the storage chamber 24, the outer layer 12 and the inner layer 14 are not separated, and the air chamber 22 is not formed. Therefore, when the container body 2 is pressed, the applied pressure is directly transmitted to the content C, and the content C corresponding to the contracted volume of the storage chamber 24 is outside the laminated peeling container 1 via the nozzle 10 Pushed out. At this time, the pressure applied by the pressure is transmitted to the introduction valve 8 and the introduction valve 8 protrudes outward. As a result, the outside air introduction port 20 is closed by the introduction valve 8, so air does not flow out of the space between the outer layer 12 and the inner layer 14 to the outside of the container body 2.

In FIG. 8 (C): When the pressure on the container body 2 is released, the storage chamber 24 is sealed, so the inner layer 12 is kept deflated while the outer layer 12 is restored to its original shape. By the movement of the introduction valve 8 due to the action (lowering of the internal pressure), the blockage of the outside air introduction port 20 is released, and air is taken in from here. Thereby, the inner layer 14 peels from the outer layer 12, and the air chamber 22 is formed. When air is drawn in until the outer layer 12 restores to its original shape, the inlet valve 8 moves with the flow of air and returns to the inner home position.
(D) and (E) in FIG. 8: The air chamber 22 is already formed between the outer layer 12 and the inner layer 14 in the second and subsequent uses. By repeating the pressing of the container body 2 and the release thereof, the volume of the air chamber 22 is expanded by the amount by which the content C is discharged from the storage chamber 24 by the function of the introduction valve 8 described above.
In FIG. 8 (F): When the container body 2 is pressed in a state where the air chamber 22 is formed, the pressure applied to the outer layer 12 is transmitted to the air chamber 22 and the internal pressure of the air chamber 22 is the surface of the inner layer 14 As a result, the storage chamber 24 contracts. And the content C equivalent to the volume which the storage chamber 24 shrank is pushed out and discharged | emitted by the outer side of the lamination peeling container 1. As shown in FIG. Even in this case, the inner layer 14 shrinks by the volume corresponding to the amount of deformation of the container body 2, so the amount of discharge of the content C if the amount of deformation of the container body 2 is constant regardless of the remaining amount of the content C Will also be constant.

Thus, after the air chamber 22 is formed, the storage chamber 24 is contracted by the pressure of the container main body 2 and the contents C are discharged to the outside of the laminated peeling container 1, and the pressure of the air chamber 22 is released by the release of the pressure. The volume is expanded by a considerable amount of the discharged content C. The pressing of the container body 2 and the release thereof are repeated until all the content C stored in the storage chamber 24 is discharged.
During this time, as described above, since the amount of deformation of the container body 2 is kept approximately constant each time by the pressing portion 6 (FIG. 4), the discharge amount of the content C at each use is set approximately constant. Can.

The present invention is not limited to the above-described embodiment, and can be variously modified and implemented.
For example, in the above embodiment, the outside air introduction port 20 is formed in the shoulder of the container body 2 and the introduction valve 8 is attached thereto, but this arrangement hinders the operation when using the laminated peeling container 1 It is selected as a site that does not become. Therefore, they may be provided on the front upper side or the bottom of the container body 2. And although the groove was provided inside the locking portion of the introduction valve 8, it is not necessary to be limited to the groove if a structure which does not close the outside air introduction port 20 can be realized, for example, a protrusion may be provided instead of the groove . In addition, in order to eliminate the air leak from an external air introduction port at the time of a pressing start, it is preferable to make an introduction valve into a valve which completely closes the external air introduction port before pressing. For example, it is preferable that the introduction valve be configured to be pushed in with a predetermined force (a minute force that causes the introduction valve to open at the time of container restoration) in the direction in which the outside air introduction port is closed. In addition, the film is arranged in advance so that the outside air introduction port is closed, and prevents the air from flowing out from the internal space to the outside through the outside air introduction port, while the air is supplied to the internal space through the outside air introduction port. You may use the film-like non-return valve which accept | permits that it flows in by deformation | transformation of a film. Thereby, more accurate fixed amount discharge can be performed.

Further, although the discharge port 18 has the nozzle 10 whose tip is bent substantially horizontally or obliquely downward, a hinge cap may be further provided to cover and protect the nozzle 10.
Furthermore, although the container body 2 was formed by blow molding the outer layer 12 and the inner layer 14 by lamination parison blow molding, the outer layer 12 and the inner layer 14 may be separately formed and then the inner layer 14 may be incorporated inside the outer layer 12. it can.

  In one embodiment, although the press part 6 is made into the bowl-shaped hollow shape, the press part 6 may be spherical shape, and may be multi-sided shape. Moreover, the position and number which form the press part 6 can be changed suitably. For example, by forming a plurality of pressing parts 6 in one container main body 2 and gradually changing the amount of deformation due to pressing depending on the position (upper, middle, lower), the discharge amount for each time・ It is also possible to change to an intermediate amount or a small amount).

DESCRIPTION OF SYMBOLS 1 lamination exfoliation container 2 container main body 4 lid 6 pressing part 8 introduction valve 10 nozzle 12 outer layer 14 inner layer 16 discharge valve 18 discharge port 20 outside air introduction port 22 air chamber (internal space)
24 storage chamber 26 seal member

Claims (4)

A container body comprising an outer layer capable of being restored upon receiving an external force while being able to restore to a container-like shape as the external force is removed, and a bag-like inner layer opposing the outer layer substantially containing the contents. When,
An external air inlet, which is formed in the outer layer and introduces air into an internal space generated between the inner layer and the outer layer;
An introduction valve which is provided in the outer layer and prevents air from flowing out from the internal space to the outside through the outside air introduction port, and allows air to flow into the inside space through the outside air introduction port. When,
A discharge port provided at an upper end portion of the container main body, the discharge port discharging a content accommodated in the container main body having a nozzle whose upper end is bent while being bent substantially horizontally or obliquely downward while the pipe is opened;
A discharge valve that allows the contents to flow out of the discharge port while preventing the outside air from flowing into the container from the discharge port;
A container comprising: a pressing portion which is formed in the outer layer and which restricts deformation of the outer layer due to the application of an external force in a preset mode. In the container according to claim 1,
The pressing unit is
A pair is provided on each of the two side surfaces of the container body forming a pair, and the user holds the container body with one hand, and the pair of pressing portions is provided at a position where it can be pushed from both directions. Container characterized in that In the container according to claim 1 or 2 ,
The container, wherein the outside air introduction port is provided on a side surface of the container main body and above the pressing portion. In the container according to claim 1 or 2 ,
The container, wherein the outside air introduction port is provided at the bottom of the container body.

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