WO2013145353A1

WO2013145353A1 - Packaging body for accommodating fluid

Info

Publication number: WO2013145353A1
Application number: PCT/JP2012/068883
Authority: WO
Inventors: 田中幹雄; 内田健彦
Original assignee: 有限会社田中テクニカル; 株式会社エムケーテクノ; ニッポー株式会社
Priority date: 2012-03-27
Filing date: 2012-07-25
Publication date: 2013-10-03
Also published as: JP5050279B1; JP2014111461A

Abstract

The purpose of the present invention is to provide a packaging body for accommodating a fluid, the packaging body having a double structure comprising inner and outer parts and having a novel structure in which a check valve made from a sheet is provided within the packaging body and the degree of freedom in designing the packaging body is increased. This invention is a bag-shaped container provided with a storage part (11) for storing fluid content, a valve part (12), a channel part (14), and an exit part (18). The valve part (12) is a check valve that is changed, by the movement of valve sheets (34 (35, 36)), between an open state in which the content is allowed to exit and a closed state in which the inflow of the fluid is prevented. There are provided two, i.e., front and rear, outer sheets (31 (32, 33)) constituting an outer bag, and the valve sheets (34 (35, 36)) are disposed on the inside thereof. The valve sheets extend in the upstream direction from the valve part (12), and constitute at least a part of the outer wall of the storage part (11).

Description

Packaging for fluid storage

The present invention relates to a package for storing fluid.

The inventor has developed the inventions shown in

Patent Documents

1 and 2.
Patent Document 1 includes an article storage unit having a space in which an article can be stored by supplying a plurality of continuous sheets in the longitudinal direction continuously in the longitudinal direction and overlapping and bonding a predetermined position. In this case, the front sheet, the rear sheet, and the sheets arranged between the two sheets as the sheet, and having a width dimension smaller than both sheets of the front rear surface, and at least one valve body sheet, It is arranged between at least one of the two sheets on the front rear surface and the valve body sheet, and is characterized by comprising a pedestal sheet that is narrower than the valve body sheet.

In Patent Document 2, a spacing member such as a thread-like body, a nonwoven fabric, a net-like body, a woven fabric, paper, or a non-breathable resin sheet is disposed between both sheets on the front rear surface and the valve body sheet. It is characterized by that.

Patent Document 3 relates to a flexible packaging bag having a check function nozzle and a liquid-filled packaging structure, and forms a double bag of an inner bag for storing a liquid material and an outer bag arranged on the outside thereof. In addition, a separate nozzle having a check function is attached to the inner bag by heat sealing or the like.

The package for storing fluid in

Patent Documents

1 and 2 forms a storage portion for fluid contents by a front sheet and a rear sheet, and only in a flow path connecting the inside and outside of the storage portion. A sheet is disposed and a valve body sheet prevents inflow of fluid such as air from the outside, and no means for providing a double bag is presented.

Patent Document 3 presents a specific means for forming a double bag, but a separate nozzle having a check function is attached to the inner bag by heat sealing or the like. In order to effectively exert the check function, it is necessary to arrange the nozzle so as to protrude from the package. Therefore, there has been a limitation on the shape of the package. In particular, it was difficult to apply to a package that forms an outlet by a spout that is a molded product of a synthetic resin. Therefore, when an external pressure is applied to the package by dropping the container or the like, the contents may be scattered.

Japanese Patent No. 3677515 Japanese Patent No. 4416738 Japanese Patent No. 44441575

The present invention provides a package for storing fluid with a novel structure in which a check valve made of a sheet is incorporated in the package body, and the degree of freedom in design of the package body is increased. Providing is a first problem.

The second subject of the present invention is a structure effective for preventing oxidation of various contents and maintaining freshness, and is a structure called a stand pack that can maintain an upright state even when the contents are discharged, or a synthetic resin. Another object of the present invention is to provide a package for storing fluid having a novel structure that can be applied to a spout that is a molded product of the above.

The present invention has a storage portion for fluid contents, a valve portion disposed downstream of the storage portion, a passage portion disposed downstream of the valve portion, and a downstream portion of the passage portion. An outflow part, and the valve part is in an open state allowing the outflow of the contents from the storage part to the passage part by movement of a valve seat in the valve passage, and a fluid from the passage part to the storage part The present invention relates to an improvement of a package for storing fluid, which is a check valve that is in a closed state that stops inflow of water.

(Major features)
In the packaging body of the present invention, it comprises at least two outer sheets before and after defining at least a part of the outer shape of the packaging body, the valve seat is disposed inside the outer sheet, The valve seats are overlapped with each other, or the outer seat and the valve seat are overlapped, and the width of the valve passage is defined by left and right valve seals that seal these seats, When the valve seat moves in the thickness direction in the valve passage, the open state and the closed state are switched. The valve seat extends upstream from the valve portion, and is at least one of the storage portions. A non-storage portion that is partitioned from the reservoir portion so as not to conduct is formed between the valve seat and the outer sheet, and the non-storage portion stores the contents. And characterized in that there is no.

(Discharge passage and filling passage)
In the packaging body of the present invention, the passage portion is partitioned into a discharge passage and a filling passage by a passage partition seal, and the discharge passage is connected to the valve passage upstream and to the outflow portion downstream. The filling passage is connected to the storage portion upstream and connected to the filling port downstream, and the content is transferred from the filling port via the filling passage to the storage portion. And at least one of the filling port and the filling passage is closed by a filling port seal after filling the contents.

As described above, by dividing the passage for discharge and filling by the passage section seal, the filling operation can be performed smoothly and the check valve function at the time of discharge can be exhibited reliably.

(Front and back 4 sheets)
In the package of the present invention, the outer sheet has higher rigidity than the valve seat, the outer sheet includes a front outer sheet and a rear outer sheet, and the valve seat includes a front A valve seat and a rear valve seat, wherein the valve passage is a passage formed between the front valve seat and the rear valve seat, and the storage portion is provided between the front valve seat and the rear valve seat. The non-storage portion is formed between the front non-storage portion formed between the front outer seat and the front valve seat, and between the rear outer seat and the rear valve seat. It can implement as what was equipped with the non-storage part after being done.

In the present invention, it can be constituted by three sheets, but by using the above four sheet structure, the check valve function can be effectively exhibited and the front and rear are well balanced. A package can be provided.

(Promoting member for closing)
In the package of the present invention, the valve portion includes a promotion member that promotes the movement of the valve seat to the closed state, and the promotion member is disposed between the front outer seat and the front valve seat. And a rear promoting member disposed between the rear outer seat and the rear valve seat, wherein the front promoting member and the rear promoting member are arranged with their upstream and downstream positions shifted. It can be implemented as it is.

By the action of the promotion member, the valve seat constituting the check valve smoothly moves from the open state to the closed state. Moreover, in the closed state, the front and rear valve seats are brought into close contact with each other in a zigzag so-called maze-like shape, so that the check valve function is reliably maintained (see FIG. 3G).

(Spout or seal)
In the packaging body of the present invention, the outflow portion is either one of a sealed outflow portion and a spout outflow portion, and the sealed outflow portion is sealed and sealed between the outer sheets. The spout outflow portion is a synthetic resin molded spout joined to the outer sheet, and the spout has a lid that can be opened and closed. It can be implemented as an unsealed package.

As a result, the package can be delivered to the user in a sealed state. And a user can use a content, preventing a quality change as a package body with a non-return valve by opening an outflow part.

(Example where the valve part is closer to the side of the package)
The present invention can be implemented with various modifications. For example, the present invention can be implemented as having the following overall configuration.
That is, the valve seat is disposed in the storage portion and the valve portion, and is not substantially disposed in the passage portion, and a left side seal on the left side of the passage section seal, and the passage The right and left side seals on the right side of the compartment seal define the left and right sides of the package, and the side seal in the storage part includes the front outer seat, the front valve seat, and the rear Between all the seats of the valve seat and the rear outer seat is sealed, and in the passage portion, the front outer seat and the rear outer seat are sealed, and the valve seal is A filling port side valve seal connected to the upstream side of the passage section seal, and a discharge flow path side valve seal shared with the right side seal, the downstream end of the valve seat and the outer seal Between the valve passage The downstream seal is formed between the left side seal and the downstream side of the filling port side valve seal, and the downstream seal is While sealing a sheet | seat and the said front valve seat, it can implement as what seals the said back outer sheet | seat and the said back valve seat, and does not seal a front valve sheet | seat and a rear valve seat.

In this way, the right side seal and the discharge flow path side valve seal can be shared by arranging the valve part so as to be biased to either the left or right side. The discharge can be made smoothly.

(Seal in valve passage)
Further, in the valve passage, a valve passage inner seal is formed between the filling port side valve seal and the right side seal, and the valve passage inner seal includes at least the front valve seat and the rear valve seat. By sealing the gap, the valve passage may be divided into a plurality of parts in the left-right direction.
By forming the seal in the valve passage in this way, the check valve effect can be exerted without difficulty even when the lateral width of the valve passage is increased.

(Example where the valve part is closer to the side of the package)
The present invention can also be carried out with the following overall configuration.
That is, the valve seat is disposed in the storage portion and the valve portion, and is not substantially disposed in the passage portion, and a left side seal on the left side of the passage section seal, and the passage The right and left side seals on the right side of the compartment seal define the left and right sides of the package, and the side seal in the storage part includes the front outer seat, the front valve seat, and the rear Between all the seats of the valve seat and the rear outer seat is sealed, and in the passage portion, the front outer seat and the rear outer seat are sealed, and the valve seal is A filling port side valve seal connected to the upstream side of the passage section seal, and a discharge flow path side valve seal extending upstream from the discharge flow path, between the downstream end of the valve seat and the outer seal Excluding the valve passage The downstream seal includes a left downstream seal passed between the left side seal and the downstream side of the filling port side valve seal, and the right side seal. And a right downstream seal passed between the discharge flow path side valve seal, and the left downstream seal is formed on the upstream side of the filling passage, The front valve seat is sealed, the rear outer seat and the rear valve seat are sealed, and the front valve seat and the rear valve seat are not sealed. It is formed on the upstream side of the discharge passage, and seals between all the sheets of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat, the discharge passage side Upstream of valve seal and right An auxiliary seal is passed between the side seals, and the auxiliary seal seals between all of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat. Can be implemented.
As a result, a package with a good balance between the left and right sides can be provided.

(Spout)
The spout is provided with a spout that allows the contents in the passage portion to flow out, and the spout has a length in the front-rear direction that is smaller than a length in the left-right direction. It can be implemented as being attached between the front and rear outer sheets according to the front-rear direction of the package. The spout is provided with a spout for allowing the contents in the passage portion to flow out. The spout can be adjusted by changing its size from the outside of the spout. It can also be implemented.

As described above, in the present invention, the front, rear, left, and right only define the relative positional relationship, and should not be understood as specifying an absolute position. Further, in the present invention, the upstream side is based on the flow of contents flowing out of the storage part of the package, and the inside of the storage part is upstream and the outside is downstream.

According to the present invention, there is an inner and outer double packaging body, and a check valve made of a sheet is built in the packaging body, and the contents storage portion in the packaging body is formed by the sheet constituting the check valve. It was possible to provide a novel structure of a package body for forming a film.
As a result, the degree of freedom in designing the package can be increased.

In addition, it is effective in preventing oxidation of various contents and maintaining freshness, and it can be maintained in a standing state even if the contents are discharged, or by a spout that is a molded product of synthetic resin. It was possible to provide a package for storing a fluid having a novel structure that can be applied to a device that forms an outlet.

The perspective view of the package which concerns on the 1st Embodiment of this invention. (A) The exploded perspective view of the package body, (B) The perspective view which shows the example of a change of the bottom sheet of the package body. (A) Structural explanatory diagram viewed from the front of the package, (B) to (F) are structural explanatory diagrams of the end face of FIG. 3 (A), (B) is a BB line, (C) is C -C line, (D) is a DD line, (E) is an EE line, and (F) is an end surface structure explanatory diagram of an FF line. (G) is an enlarged view of the main part of the end surface along the line EE. The manufacturing method of the package is shown. (A) is the first step, (B) is the second step, (C) is the third step, (D) is the fourth step, and (E) is the fifth step. Step (F) is an explanatory diagram of the sixth step. (A) It is structure explanatory drawing seen from the front of the package which concerns on the 2nd Embodiment of this invention, (B) is end surface structure explanatory drawing of the GG line | wire of FIG. 5 (A). (A) It is structure explanatory drawing seen from the front of the package which concerns on the 3rd Embodiment of this invention, (B) is the end surface structure explanatory drawing of the HH line | wire of FIG. 6 (A). It is structure explanatory drawing seen from the front of the package which concerns on the 4th Embodiment of this invention. (A) Structure explanatory drawing seen from the front of the package which concerns on the 5th Embodiment of this invention, (B) The principal part structure explanatory drawing which shows the modification of the package. The principal part disassembled perspective view of the package which concerns on the 6th Embodiment of this invention. (A) It is structure explanatory drawing seen from the front of the package which concerns on the 7th Embodiment of this invention, (B) is the end surface structure explanatory drawing of the II line | wire of FIG. 10 (A). (A) It is structure explanatory drawing seen from the front of the package which concerns on the 8th Embodiment of this invention, (B) is end surface structure explanatory drawing of the JJ line | wire of FIG. 11 (A). It is a principal part perspective view of the spout of other embodiment. (A) Main part sectional drawing of the spout of the embodiment, (B) Plan view of the spout of the embodiment, (C) Plan view showing a modification example of the spout, (D) Other modification examples of the spout FIG. It is a perspective view of the spout of other embodiment. It is the disassembled perspective view of the state which looked at the spout of the embodiment from diagonally downward. It is sectional drawing which shows the assembly state of the spout of the embodiment. It is a top view of one form of the spout main body of the spout of the embodiment. It is a bottom view of one form of the spout main body of the spout of the embodiment. It is a top view of one form of the spout inner stopper of the embodiment. It is a bottom view of one form of the spout inner stopper of the embodiment. It is a top view of the other form of the spout main body of the spout of the embodiment. It is a bottom view of the other form of the spout main body of the spout of the embodiment. It is a top view of other forms of the spout inner stopper of the embodiment. It is a bottom view of the other form of the inside plug of the spout of the same embodiment. It is explanatory drawing which shows the opening condition (small) of the spout of the spout main body of the spout of the embodiment. It is explanatory drawing which shows the opening condition (inside) of the spout of the spout main body of the spout of the embodiment. It is explanatory drawing which shows the opening condition (large) of the spout of the spout main body of the spout of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the packaging body 10 according to the first embodiment will be described with reference to FIGS.

(Outline) The packaging body 10 according to this embodiment is a bag body constituted by a sheet-like body such as a synthetic resin sheet, and is a double-sided bag body. The package 10 is provided with a valve portion 12 including a check valve, and the inner bag has a liquid such as liquid seasoning, liquor, and drinking water, and may have viscosity and fluidity such as mayonnaise and ketchup. The contents are stored. Moreover, it can also be made into the contents of industrial products other than foods, such as sticky bodies, such as raw chocolate, and an adhesive agent, printing ink, a paint, a coating material, and oil.

An outflow portion 18 is provided at the top of the package 10, and the contents are discharged from the outflow portion 18. In this example, it is implemented as a self-supporting package called a stand pack, and the outer bag is made of a material having higher rigidity than the inner bag.
The package 10 employs a spout outflow portion 20 as the outflow portion 18 of the contents.

(Constituent Member) First, members constituting the package 10 will be described with reference to FIG. The package 10 includes an outer sheet 31 that forms an outer bag, a valve sheet 34 that forms an inner bag, and a bottom sheet 37 that forms the bottom of the package 10.

The outer sheet 31 includes a front outer sheet 32 disposed on the front surface side of the package 10 and a rear outer sheet 33 disposed on the rear surface side. Hereinafter, when it is necessary to distinguish between the front and rear, they are referred to as the front outer sheet 32 and the rear outer sheet 33, and when it is not necessary to distinguish between the front and rear or when both are referred to together, they are referred to as the outer sheet 31.

The valve seat 34 is disposed inside the outer seat 31. The valve seat 34 includes a front valve seat 35 disposed on the front surface side and a rear valve seat 36 disposed on the rear surface side. Hereinafter, when the front and rear need to be distinguished, they are referred to as the front valve seat 35 and the rear valve seat 36, and when it is not necessary to distinguish between the front and rear, or when both are referred to together, they are referred to as the valve seat 34. In FIG. 3 and subsequent figures, the valve seat 34 is indicated by a diagonal line at the upper right.

The outer sheet 31 is composed of a single sheet of a synthetic resin film such as polyethylene, polypropylene, or polyamide, a laminated sheet of these, or a composite laminated sheet of these and other materials such as metal foil or paper.

The valve seat 34 can be made of the same material as that of the outer seat 31. However, since the valve seat 34 is a seat constituting a check valve, a sheet that is thinner and more flexible than the valve seat 34 can be selected and used. preferable. For example, a polyethylene sheet having a thickness of 20 to 50 μm is suitable, but the present invention can be carried out by changing to another sheet used for a conventionally known check valve made of a sheet.

Although the outer sheet 31 and the valve seat 34 can have substantially the same shape and the same size, the valve seat 34 is a sheet having a smaller height than the outer sheet 31. In this example, the valve seat 34 has a rectangular shape, and the outer seat 31 has a pentagonal shape in which the upper corner of the rectangle is cut obliquely. As described above, generally, the outer seat 31 and the valve seat 34 are mainly rectangular, but can be implemented in various shapes. For example, an irregular shape such as a polygon, a circle, or a shape imitating an anime character can be adopted. In this case, the outer seat 31 may have various shapes, and the valve seat 34 may have a simple shape such as a polygon or a circle so that the contents can smoothly flow out.

The bottom sheet 37 constitutes the bottom of the package 10 and is made of the same material as that of the outer sheet 31. However, it is desirable that the bottom sheet 37 be made of a material having higher flexibility. In FIG. 3 and subsequent figures, the bottom sheet 37 is indicated by a diagonal line that rises to the left.

Next, in this example, the promotion member 38 is used to promote the movement of the valve seat 34 in the valve portion 12. The promotion member 38 includes a front promotion member 39 disposed on the front surface side (specifically, between the front outer sheet 32 and the front valve seat 35) and a rear surface side (specifically, the rear outer sheet 33 and the rear valve seat). And a rear facilitating member 40 disposed between the rear and rear members 36. Hereinafter, when it is necessary to distinguish between front and rear, they are referred to as a front promoting member 39 and a rear promoting member 40, and when there is no need to distinguish between front and back or when both are referred to together, they are referred to as a promoting member 38. The promotion member 38 includes a thread-like body, a nonwoven fabric, a net-like body, a woven fabric, a paper, a resin sheet with poor air permeability, in particular, a thread made of synthetic fiber or natural fiber, a sheet made of synthetic resin, paper or metal, A ribbon or the like having a thickness that is shorter than the valve passage 13 is preferably used. It can also consist of a filamentous body. In the case of a thread-like body, it is desirable to use a thread-like body made of a thermoplastic resin fiber such as a polyester resin fiber having heat sealing properties, but a thread-like body made of natural fibers such as cotton that does not have a heat sealing property is used. It is also possible to use it.

The diameter or thickness of the accelerating member 38 is suitably about 3 to 15 times the thickness of the valve seat 34, but if the above movement of the valve seat 34 can be promoted and the check valve effect can be exhibited, It may be smaller or larger than this. For example, when the thickness of the outer sheet 31 is 50 to 150 μm, it is optimal that the valve seat 34 has a thickness of 20 to 50 μm, and the diameter or thickness of the promoting member 38 is 150 to 300 μm. The present invention should not be understood.

As described above, the spout outflow portion 20 is adopted as the outflow portion 18 of the package 10. The spout outflow portion 20 includes a spout 41 that is a molded product of a synthetic resin, and a lid 42 that closes the outflow port with a screw or the like so as to be freely opened and closed. As the spout 41 and the lid 42, ordinary ones that are generally used in many fluid beverages and food packaging bodies can be employed.

Each of these members can be sealed with an adhesive, but in this example, welding such as heat sealing or ultrasonic sealing is employed. Therefore, it is preferable to dispose a meltable material in the portion constituting the seal portion of each member.

(Each part of the package 10) Next, the structure and function of each part of the package 10 will be described. The package 10 includes a storage part 11 for storing and storing fluid contents, a valve part 12 disposed downstream of the storage part 11, and a passage part 14 disposed downstream of the valve part 12. And an outflow portion 18 disposed downstream of the passage portion 14. In the figure, since the storage part 11 is arranged below the outflow part 18 and the outflow part 18 is arranged at the upper part of the packaging body 10, it goes from upstream to downstream as it goes upward from below the outflow part 18. It has become.

(Reservoir 11) The reservoir 11 is formed between the front valve seat 35 and the rear valve seat 36, and these valve seats 34 constitute the outer wall of the reservoir 11. In this example, the bottom of the reservoir 11 is constituted by a bottom sheet 37. In order to define the left and right sides of the storage part 11, the front outer sheet 32 and the rear outer sheet 33 are sealed by a storage part side seal 61 on the left and right sides thereof. The storage portion side seal 61 seals both the left and right sides of the outer seat 31 (the front outer seat 32 and the rear outer seat 33) disposed outside the valve seat 34. 32, the front valve seat 35, the rear valve seat 36, and the rear outer seat 33 are stacked and sealed together. Thus, by sealing together the four sheets of the front outer sheet 32, the front valve sheet 35, the rear valve sheet 36, and the rear outer sheet 33, the inner bag and the outer bag are joined on the left and right sides thereof. It will be a thing.

However, instead of sealing the four sheets together, the valve seat 34 is formed slightly smaller than the outer sheet 31 and the front outer seat 32 and the rear outer seat 33 are bonded to each other, and the front valve seat A seal for adhering 35 and the rear valve seat 36 may be formed separately. By doing so, the inner bag and the outer bag are formed in an independent state.

(Bottom sheet 37) The bottom sheet 37 constituting the bottom of the reservoir 11 is folded up and down by a crease line 43 extending in the left-right direction. The crease line 43 becomes the upper side of the bottom sheet 37 folded in half, and the lower side of the front half and the lower side of the rear half of the bottom sheet 37 are valve seats 34 (the front valve seat 35 and the rear valve seat 36) by the bottom seal 64, respectively. Sealed against the bottom side. The outer seal 31 (the front outer sheet 32 and the rear outer sheet 33) may be sealed together by the bottom seal 64, or may not be intentionally sealed. Further, the left and right sides in the front half of the bottom seat 37 and the left and right sides in the rear half are respectively the lower portions of the left and right sides of the valve seat 34 (the front valve seat 35 and the rear valve seat 36) by the storage side seal 61 described above. Sealed against. The bottom sheet 37 is basically the same as a general bag having a bottom surface. The bottom seat 37 can also be omitted, and in this case, the bottom seal 64 is similar to the reservoir side seal 61 in that the front outer seat 32, the front valve seat 35, the rear valve seat 36, The four sheets of the rear outer sheet 33 are sealed. Conversely, two bottom sheets 37 are prepared, one bottom sheet 37 is sealed with the bottom sides of the front outer sheet 32 and the rear outer sheet 33, and the other bottom sheet 37 is sealed with the front valve sheet 35 and the rear valve sheet 36. By sealing with the bottom side, the inner bag and the outer bag can be implemented as having independent bottom portions.

(Valve 12) Next, the valve 12 will be described. The valve portion 12 is a check valve that opens and closes by the movement of the valve seat 34 (the front valve seat 35 and the rear valve seat 36) in the valve passage 13. This check valve switches between an open state in which the outflow of contents from the reservoir 11 to the valve passage 13 and a closed state in which inflow of fluid such as air from the valve passage 13 to the reservoir 11 is stopped. . Therefore, even if the contents flow out from the storage unit 11, the air does not enter the storage unit 11, so that the content is prevented from being oxidized and its freshness is maintained.

In this example, the valve passage 13 is configured by overlapping a front valve seat 35 and a rear valve seat 36. Specifically, the valve seat 34 (the front valve seat 35 and the rear valve seat 36) constitutes the inner bag and the valve passage 13 at the upper portion (downstream side) as described above. A conventional check valve made of a seat attaches a small sheet body including a valve seat to a part of the bag body. In the present invention, the seat portion constituting the storage portion 11 of the bag body And the valve seat portion are formed by a valve seat 34 (a front valve seat 35 and a rear valve seat 36) provided continuously in an integrated manner.

If the width of the valve passage 13 is too large, a sufficient check valve effect cannot be exhibited. On the other hand, if the width of the valve passage 13 is too small, the outflow amount in the forward flow becomes small. Therefore, the width of the valve passage 13 is suitably 5 to 60 mm, more desirably about 10 to 30 mm, but the present invention should not be understood to be limited to this.

In order to define the left and right widths of the valve passage 13, filling port side valve seals 54 and discharge flow path side valve seals 55 are formed as valve seals 51 on the left and right sides of the valve passage 13. Both the filling port side valve seal 54 and the discharge flow path side valve seal 55 are formed substantially in the vertical direction along the fluid flow direction.

The valve seal 51 (filling port side valve seal 54, discharge flow path side valve seal 55) is sufficient to seal the valve seats 34 (the front valve seat 35 and the rear valve seat 36). 31 (front outer sheet 32, rear outer sheet 33) are also sealed together to seal four sheets.

In this embodiment, the valve passage 13 is defined by the front valve seat 35 and the rear valve seat 36 defined on both sides by the left and right valve seals 51 (fill port side valve seal 54, discharge flow path side valve seal 55). Say the space between.

In this example, the valve seal 51 has the filling port side valve seal 54 disposed on the left side and the discharge flow path side valve seal 55 disposed on the right side. Furthermore, although the valve seal 51 (fill port side valve seal 54, discharge flow path side valve seal 55) is disposed at the approximate center of the package 10, the present invention is not limited to this, and the valve seal 51 may be biased to the left or right. it can.

By providing it in the vicinity of the left and right sides of the package 10, either the filling port side valve seal 54 or the discharge flow path side valve seal 55 can be shared with the left side seal 60a or the right side seal 60b. It is.
These valve seals 51 (fill port side valve seal 54, discharge flow path side valve seal 55) are formed from the upper end (downstream end) of the valve seat 34 downward (upstream side).

The vertical length of the valve seal 51 (fill port side valve seal 54, discharge flow path side valve seal 55) is suitably about 10 to 40 mm, but can be implemented with various changes. As described above, the valve seat 34 is extended downward (upstream direction) on the upstream side of the discharge passage 15 as constituting the storage portion 11, but is not extended upward (downstream direction) It is an end (upper end) that is not cut. Therefore, considering the degree of freedom of movement in the thickness direction, the downstream end (upper end) which is the uncut end (upper end) of the valve seat 34 has a degree of freedom compared to the upstream end (lower end). large. Accordingly, the valve seats 34 (the front valve seat 35 and the rear valve seat 36) in the valve passage 13 are moved in the thickness direction mainly on the downstream end (upper end) side thereof, so that the valve seats 34 are in close contact with each other (closed). State) and a state (open state) in which the valve seats 34 are separated from each other.

(Promotion member 38) In this embodiment, the promotion member 38 (the front promotion member 39, the rear promotion member 40) is used as a member for prompting the opening / closing operation of the valve. The promotion member 38 promotes the movement of the valve seat 34 to the closed state.

Before explaining the operation of the accelerating member 38, a general check valve will be described. When the reservoir 11 is tilted or when pressure is applied to the reservoir 11, the contents in the reservoir 11. An object tries to flow out from the valve part 12 downstream of the storage part 11. At that time, the front valve seat 35 and the rear valve seat 36 are separated from each other by the pressure of the storage portion 11, the discharge passage 15 is opened, and the contents flow out from the valve portion 12 to the passage portion 14. On the other hand, even if a fluid such as external air is about to flow into the reservoir 11, the interior of the reservoir 11 becomes slightly negative as the contents pass, and the front valve seat 35 and the rear valve seat 36 are in close contact with each other. Return to state. As a result, the contents and air are prevented from flowing into the storage portion 11 from the downstream end (upper end) side so as to spread between the front valve seat 35 and the rear valve seat 36. .

At that time, the front promoting member 39 is disposed between the front valve seat 35 and the front outer seat 32, and the rear promoting member 40 is disposed between the rear valve seat 36 and the rear outer seat 33, The valve seat 35 and the rear valve seat 36 are likely to be in close contact with each other. In particular, if the valve seat 34 comes into close contact with the outer seat 31 during the valve opening state, the close contact between the valve seat 34 and the outer seat 31 is maintained when the valve seat 34 should be closed after the contents flow out. In some cases, the close contact between the seats 34 (the front valve seat 35 and the rear valve seat 36) hardly occurs. Thus, the valve member 34 is prevented from coming into close contact with the outer seat 31 by the accelerating member 38 to promote close contact between the valve seats 34 (the front valve seat 35 and the rear valve seat 36) in the closed state. is there.

The front promotion member 39 and the rear promotion member 40 may be arranged at the same position in the vertical direction (downstream upstream direction). However, in this embodiment, they are arranged in a shifted manner. Accordingly, the valve passage 13 becomes zigzag in the valve closed state, which is advantageous for maintaining and maintaining the sealing performance in the valve closed state (see FIG. 3G). A release agent may be applied between the outer sheet 31 and the valve seat 34 in combination with the accelerating member 38 or alone. Furthermore, in order to maintain the airtightness in the valve-closed state, at least one of the opposing surfaces of the front valve seat 35 and the rear valve seat 36 has a weak adhesive property so that they adhere to each other with viscosity. It is possible to adopt what you have.

Further, it is desirable to seal the valve seat 34 and the outer seat 31 on the upstream side of the valve passage 13 (on the upstream side when the promotion member 38 is provided) with the valve upstream side seal 65. The valve upstream side seal 65 is formed by connecting the filling port side valve seal 54 and the right side seal 60b. In addition, since the necessary part in the valve upstream side seal 65 is between the valve seals 51 (between the filling port side valve seal 54 and the discharge flow path side valve seal 5555), it should be provided only in that section. May be.

Thus, at the upstream end of the valve portion 12, the front outer seat 32 and the front valve seat 35 are sealed and the rear outer seat 33 and the rear valve seat 36 are sealed, thereby improving the check valve function. Plan. Specifically, when the check valve changes from the open state to the closed state, a fluid such as external air flows between the outer seat 31 and the valve seat 34, and the pressure between the outer seat 31 and the valve seat 34 increases. Contact between the valve seats 34 is promoted. Furthermore, in this example, it is possible to prevent the contents that have flowed out into the discharge passage 15 from flowing between the outer sheet 31 in the reservoir 11 and the valve seat 34 on the outer side.

The promotion member 38 can exhibit its function only by being disposed only between the left and right valve seals 51. However, in this example, the promotion member 38 is provided over the entire length of the right and left width of the reservoir portion 11 in terms of production efficiency. It is sealed by a left side seal 60a and a right side seal 60b.

(Non-storage part 23) Between the said valve seat 34 and the outer sheet | seat 31, it is the non-storage part 23 divided so that the storage part 11 cannot conduct | electrically_connect. Specifically, the non-housing portion 23 is formed between the front non-housing portion 24 formed between the front outer seat 32 and the front valve seat 35, and the rear non-housing portion formed between the rear outer seat 33 and the rear valve seat 36. The storage unit 25 is included. These non-storage parts 23 are spaces in which contents are not stored. As described above, the valve portion 12 stops the inflow of fluid such as air from the outside into the storage portion 11 constituted by the valve seat 34 that is the inner container, so that the contents from the storage portion 11 can be obtained. As the fuel is discharged, the valve seat 34 is deformed to prevent the contents in the reservoir 11 from being oxidized and maintain freshness. In order to ensure this, an air hole 26 is provided in the outer seat 31 to introduce external air into the non-housing portion 23, and only the valve seat 34 is deformed while suppressing deformation of the outer seat 31. To go.
The downstream side (upper side) of the valve seat 34 is fixed to the outer seat 31 by the left downstream seal 56a and the right downstream seal 56b except for the valve passage 13.

(Passage portion 14) A passage portion 14 is formed upstream of the valve portion 12. The valve seat 34 is not substantially disposed in the passage portion 14, and the upper space between the front outer seat 32 and the rear outer seat 33 is the passage portion 14. In this example, the passage portion 14 is divided into a discharge passage 15 on the right side and a filling passage 16 on the left side by sealing the front outer sheet 32 and the rear outer sheet 33 with a passage partition seal 57 extending in the vertical direction. It is partitioned.

(Discharge passage 15 / outflow portion 18) The discharge passage 15 is connected to the valve passage 13 upstream and to the outflow portion 18 downstream. In other words, the downstream end of the valve passage 13 is conducted only to the discharge passage 15, and is blocked from the filling passage 16 by the passage section seal 57. In this example, the outflow portion 18 is a spout outflow portion 20 using the spout 41. The spout 41 is provided with a flow path for contents, and the downstream end of the flow path is hermetically sealed by a lid 42 that can be attached and detached with a screw. The spout 41 is attached to the outer sheet 31 (the front outer sheet 32 and the rear outer sheet 33) by a top seal 66. The spout 41 may be attached in accordance with a conventional method. For example, the base end side of the spout 41 may be sealed and attached to the inner surfaces of the front outer sheet 32 and the rear outer sheet 33. However, the present invention is not limited to this. 32 and the rear outer sheet 33 may be inserted into the base end side of the spout 41 so that the outer surface side of the front outer sheet 32 and the rear outer sheet 33 and the spout 41 are sealed.

(Filling passage 16) The filling passage 16 is directly connected to the storage portion 11 (without passing through the valve portion 12) upstream (downward), and is filled downstream (upper) before filling the contents. It conducts to the mouth 17 and opens to the outside. The left and right sides of the filling passage 16 are defined by passage portion side seals 62 and passage section seals 57.

The passage side seal 62 seals the sides of the front outer sheet 32 and the rear outer sheet 33. The passage portion side seal 62 is formed continuously with the storage portion side seal 61, and both of them are formed continuously as a left side seal 60a. The passage section seal 57 divides the passage section 14 into two parts, and seals the front outer sheet 32 and the rear outer sheet 33.
When filling the contents, in an industrial production process, a nozzle (not shown) provided in a factory line or the like is inserted into the filling passage 16 and the contents are discharged from the nozzle.

Specifically, a nozzle is inserted from the filling port 17 into the filling passage 16 and, in some cases, into the storage portion 11, and the contents are discharged from the tip of the nozzle to fill the storage portion 11. When the nozzle is inserted, since the outer seat 31 and the valve seat 34 are sealed by the left downstream seal 56a, the nozzle is smoothly inserted only into the storage portion 11.

And after filling, a nozzle is pulled out and the filling port seal | sticker 58 is sealed. The contents are filled in the reservoir 11 and the filling passage 16. The seal for sealing may be the filling port seal 58, but in combination with the filling port seal 58 or alone, after filling, the portion of the left downstream seal 56a is sealed, and the valve seats 34 are connected to each other. Once sealed, the contents are filled only into the reservoir 11. Further, by sealing the left side seal 60a and the passage partition seal 57 (or the filling port side valve seal 54) at an appropriate position in the filling passage 16 (or upstream side thereof), You may make it stop the outflow of the contents.

(Auxiliary seal 63) An auxiliary seal 63 is formed between the upstream side (lower side) of the right discharge flow path side valve seal 55 and the right side seal 60b in the valve seal 51 described above. The auxiliary seal 63 seals a total of four sheets, that is, two outer sheets 31 and two valve sheets 34. The auxiliary seal 63 defines the top of the reservoir 11, and the contents in the reservoir 11 are guided to the closed auxiliary seal 63 and reach the valve passage 13.
Next, the manufacturing process of the package 10 according to the above-described embodiment will be described with reference to FIG.

(First Step) As shown in FIG. 4A, the package 10 includes an outer sheet 31 of the front outer sheet 32 and the rear outer sheet 33, a valve sheet 34 of the front valve sheet 35 and the rear valve sheet 36, and a bottom. Each sheet of the sheet 37 and each of the front promotion member 39 and the promotion member 38 of the rear promotion member 40 are flowed as a continuous series of elongated bodies. In this example, it is supplied in a state of being continuous in the left-right direction (arrow direction), but it is also possible to supply in a state of being continuous in the up-down direction. In this step, the front outer sheet 32 and the rear outer sheet 33 are supplied as separated in the front and rear in the figure, but the front outer sheet 32 and the rear outer sheet 33 are configured by a single web, The front outer sheet 32 and the rear outer sheet 33 may be supplied as separate webs by folding the sheet in half. Similarly, the front valve seat 35 and the rear valve seat 36 may be supplied in a single web state and cut into two. From the rear to the front, the rear outer seat 33, the rear promoting member 40, the rear valve seat 36, the bottom seat 37, the front valve seat 35, the front promoting member 39, and the front outer seat 32 are stacked in this order from right to left. Supplied. The supply method may use transfer means such as a feed roller and a conveyor used in a normal bag manufacturing method, and according to a conventional method, either the rear outer sheet 33 or the front outer sheet 32 is set as the upper surface side, With the other as the lower surface, it can be supplied by being transported on a long support. Further, according to a conventional method, these webs are moved intermittently, and the following processing is performed at each stage. Although illustration is omitted, when the air holes 26 are formed in the front outer sheet 32 and the rear outer sheet 33, they are formed before the sheets are stacked.

(Second Step) As described above, the first heat sealing (sealing between the outer sheet 31 and the valve seat 34) is performed on the sheets supplied in a stacked manner. As will be described in detail below, this heat seal is performed by arranging the heated molds up and down, and partially separating each of the above sheets from both the front outer sheet 32 and the rear outer sheet 33, and the first location. The second part is heated to weld the necessary sheets. Instead of heat welding, other welding means such as ultrasonic waves, or adhesion using an adhesive can be performed.
As shown in FIG. 4 (B), there are two places on the upper and lower sides of the package 10 (specifically, the following first place and second place).

The first location is the filling port side valve seal 54, the valve upstream side seal 65, and the left downstream seal 56a. This seal seals the front outer seat 32 and the front valve seat 35, and seals the rear outer seat 33 and the rear valve seat 36. The seal between the front valve seat 35 and the rear valve seat 36 is sealed. do not do. Therefore, the top heat-resistant plate 71 is inserted between the front valve seat 35 and the rear valve seat 36, and a heat-sealing mold is pressed from the front and back to be welded. The top heat-resistant plate 71 has a base end fixed to the outside (upper side in the drawing) of the lateral sides of these webs, and the front end is inserted between the front valve seat 35 and the rear valve seat 36. Is. The web moves intermittently, and these heat sealing processes are performed one after another. Of these heat seals, only the valve upstream seal 65 and the left downstream seal 56a may be provided, and the other seals may be processed in the next step.

However, the valve seal 51 (the filling port side valve seal 54 and the discharge flow path side valve seal 55) seals with the promotion member 38 such as the above-mentioned thread interposed therebetween. Therefore, it is possible to surely seal by performing heat sealing twice in the second step and the next third step. For this reason, the discharge flow path side valve seal 55 may also be included and sealed in this first location.

The second location is the front and rear bottom seals 64. Specifically, the front half of the bottom sheet 37 folded in two from the crease line 43 and the bottom ends of the front valve seat 35 and the front outer sheet 32 are heat-sealed, and the rear half of the bottom sheet 37, the rear valve seat 36, and the rear The bottom end of the outer sheet 33 is heat sealed. No sealing is performed between the front half and the rear half of the bottom sheet 37 folded in two from the crease line 43. Therefore, in the same manner as the top heat-resistant plate 71, the bottom heat-resistant plate 72 is inserted and heat-sealed between the bottom sheets 37 folded in two from the crease line 43.

In the example shown in the figure, the above heat seal is processed for each package 10, but a heat seal portion for processing a plurality of packages 10 is provided in one mold, The package 10 may be processed in one stage. Moreover, you may heat seal a 1st location and a 2nd location on a separate stage.

For the second part, when the film structure on the inner side (facing side) of the folded bottom sheet 37 is a film having a high melting temperature and difficult to heat seal (for example, polyamide or PET), the bottom part The heat-resistant plate 72 is not necessary. However, since the bottom part is divided into two parts on the appearance of the package 10, in order to avoid this, the bottom sheet 37 shown in FIG. The bottom sheet 37 is formed by forming concave portions 27 on both the left and right sides before and after being folded in half. Accordingly, the front outer sheet 32 and the rear outer sheet 33 are welded to each other at the concave portion 27, and the bottom portion can be prevented from being bifurcated.

(Third Step) As described above, the second heat sealing is performed on the sheet where the first portion and the second portion are heat sealed (see FIG. 4C). As with the previous heat seal, this heat seal is also a method in which the respective sheets are partially heated from both the front outer sheet 32 and the rear outer sheet 33 to weld the sheets together. Heat seal all sheets without using. The heat seal location in the third step is indicated by the solid line shown in FIG. Specifically, the valve seal 51 (fill port side valve seal 54 and discharge flow path side valve seal 55), passage section seal 57, right downstream seal 56b, and auxiliary seal 63 are included. Among these, for the passage partition seal 57, the front outer sheet 32 and the rear outer sheet 33 are heat-sealed. As for the other parts, the front outer seat 32, the front valve seat 35, the rear valve seat 36, and the rear outer seat 33 are heat sealed.

(Fourth step) The fourth step is a step of applying a side seal. The step of applying the side seal may be performed in accordance with a conventional method for continuously producing this type of conventional bag. Specifically, the left side seal 60a and the right side seal 60b (the two-dot chain line portion in FIG. 4C) are sealed. In the continuous manufacturing process, the right side seal in the preceding package 10 is sealed. While processing the seal | sticker 60b and the left side seal | sticker 60a in the subsequent package 10 simultaneously, it cuts between both and forms the one package 10. FIG. The left side seal 60a and the right side seal 60b heat seal the front outer seat 32, the front valve seat 35, the rear valve seat 36, and the rear outer seat 33. The passage side seal 62 heat-seals the front outer sheet 32 and the rear outer sheet 33, and the front side seat 32, the front valve seat 35, Six sheets of the folded bottom sheet 37, the rear valve sheet 36, and the rear outer sheet 33 are heat-sealed.

FIG. 4D shows a state in which the side seal in the fourth step and the heat seals in the second and third steps are combined, and the left downstream seal 56a and the valve upstream seal. About 65, the state which is not heat-sealed between the front valve seat 35 and the rear valve seat 36 is maintained. On the other hand, for the right downstream seal 56b, the discharge flow path side valve seal 55, the auxiliary seal 63, the filling port side valve seal 54, and the passage partition seal 57, the front outer seat 32, the front valve seat 35, the rear valve seat 36, and the rear outer seat. Four sheets 33 are sealed, and the space between the front valve seat 35 and the rear valve seat 36 is also heat-sealed.
In the present invention, instead of heat sealing, other welding means such as ultrasonic waves or adhesion using an adhesive can be performed.

(Fifth step) After the above cutting is completed, the semi-finished products of the package 10 are moved to another line, and the spout 41 is inserted between the front outer sheet 32 and the rear outer sheet 33, and the top part The spout outflow part 20 is formed by heat-sealing the seal 66 (see FIG. 4E). In this state, the filling port 17 is not heat-sealed and is in an open state. When the manufacturing process of the packaging body 10 and the use process of the packaging body 10 (the filling process of the contents into the packaging body 10) are performed in different factories, the packaging body 10 is in the state of completion of the fifth step. Will be shipped and transferred to the filling plant. In order to clarify the relationship between the sheets, FIGS. 3B to 3F show a large space between all the sheets, but the sheets are actually in close contact with each other.

(Sixth Step) The contents are filled from the filling port 17. In the industrial production process, the filling nozzle 17 is inserted into the filling nozzle 17 to fill the contents. At that time, the seal of the left downstream seal 56a allows the nozzle to be smoothly inserted into the filling passage 16 between the front valve seat 35 and the rear valve seat 36, and the front valve seat 35, the rear valve seat 36, The storage portion 11 which is a space formed by the bottom sheet 37 is filled. After filling is completed, the filling port seal 58 is heat-sealed, and the filling port 17 is closed (see FIG. 4F). There is nothing in the front non-storage part 24 (the space between the front valve seat 35 and the front promotion member 39) and the rear non-storage part 25 (the space between the rear valve seat 36 and the rear promotion member 40). It is not filled.

(Usage method) This package 10 is shipped with the contents filled as described above, and delivered to the consumer. The package 10 is erected with the bottom sheet 37 facing down. At that time, since the outer sheets 31 of the front outer sheet 32 and the rear outer sheet 33 have relatively high rigidity, the bags are highly self-supporting. Further, in order to ensure a long-term barrier property against the contents, the outer sheet 31 of the front outer sheet 32 and the rear outer sheet 33 may have a multi-layer structure. Therefore, even if the front valve seat 35 and the valve seat 34 of the rear valve seat 36 constituting the inner bag are relatively thin and the barrier property is not sufficient, the outer seat 31 of the front outer seat 32 and the rear outer seat 33. Since the barrier property can be secured, the package 10 as a whole can have a sufficient barrier property.

The consumer removes the lid 42 and pours out the contents according to the usual method for this type of bag. When the contents are low in viscosity, the contents flow out of the spout 41 just by tilting the package 10, but when the viscosity is high or the remaining amount is low, the front outer sheet 32 and the rear outer sheet 33 is lightly gripped with a hand, etc., and pressure is applied to the bag so that the spout 41 flows out. At the time of the outflow, the contents from the storage portion 11 flow out between the front valve seat 35 and the rear valve seat 36 in the valve passage 13. The space between the front valve seat 35 and the rear valve seat 36 is filled with the contents, but the front valve seat 35 in the valve passage 13 regulated by the filling port side valve seal 54 and the discharge flow path side valve seal 55 The close contact state with the rear valve seat 36 is normally maintained, and is opened by the pressure of the contents only at the time of the outflow.

The outflow of the contents is stopped by stopping the tilting of the package 10 and standing upright, or by stopping the gripping by the hand. As a result, the front valve seat 35 and the rear valve seat 36 in the valve passage 13 normally return to a close contact state. In particular, in this embodiment, since the promotion member 38 including the front promotion member 39 and the rear promotion member 40 is provided, the front valve seat 35 and the rear valve seat 36 are in close contact with each other. Sealed. Particularly, since the front promotion member 39 and the rear promotion member 40 are arranged with their positions in the upstream and downstream directions slightly shifted, the front promotion member 39 and the rear promotion member 40 sandwiched between them are curved ( In other words, it is a labyrinth state), and it is securely sealed rather than simply being adhered in a straight state (see FIG. 3G). Thus, as the outflow of the contents ends, the front promoting member 39 and the rear promoting member 40 come into close contact with each other, and air from the outside of the package 10 is prevented from flowing into the storage portion 11. Therefore, the content is prevented from being substantially in contact with a large amount of air regardless of the amount, and the quality and freshness of the content are maintained. When the remaining amount of the contents decreases, the front valve seat 35 and the rear valve seat 36 constituting the inner bag are deflated. At that time, by providing the air holes 26 in the front outer sheet 32 and the rear outer sheet 33, external air is introduced into the non-storage part 23 (the front non-storage part 24 and the rear non-storage part 25). Therefore, the front outer sheet 32 and the rear outer sheet 33 are not bent and deformed more than necessary, and the self-supporting property of the package 10 is maintained.

In particular, as shown in FIG. 5, the bent portion 44 is formed in the valve seat 34 (the front valve seat 35, the rear valve seat 36), thereby reducing the remaining amount of the contents. Even when the inner bag of the seat 35 and the rear valve seat 36 is squeezed, the outer seat 31 (the front outer seat 32 and the rear outer seat 33) can be prevented from being pulled. As a result, the deformation of the outer sheet 31 can be prevented more reliably, and the independence is not impaired. In the example of FIG. 5, the bent portion 44 is formed so as to extend in the horizontal direction, but it may be extended in the vertical direction or oblique direction. It can also be implemented as a gusseted container with a hook.

On the other hand, when the self-supporting property is not required, the outer seat 31 (the front outer seat 32 and the rear outer seat 33) is replaced by the valve seat 34 (the front valve seat 35 and the rear valve seat 36) without forming the air hole 26. You may make it deform | transform with it.

In addition, since the spout 41 is provided in the package 10, the package 10 can be completely sealed by the lid 42. Therefore, even if pressure is applied carelessly, for example, by dropping the container, the contents do not scatter to the outside.

(Embodiment shown in FIG. 6) The present invention can be implemented with various modifications. For example, as shown in FIG. 6, the upper and lower dimensions of the valve seat 34 (the front valve seat 35 and the rear valve seat 36) can be set short. The lower ends of the front valve seat 35 and the rear valve seat 36 are welded to the outer seat 31 (the front outer seat 32 and the rear outer seat 33) by the valve lower seal 67. The bottom seal 64 welds the folded bottom sheet 37 and the outer sheet 31 (the front outer sheet 32 and the rear outer sheet 33). Therefore, in this example, the storage part 11 is comprised by the outer sheet | seat 31 (front outer sheet | seat 32, the rear outer sheet | seat 33), the valve sheet | seat 34 (the front valve sheet | seat 35, the rear valve sheet | seat 36), and the bottom sheet | seat 37.

5 and 6, the lower end of the front valve seat 35 and the lower end of the rear valve seat 36 are welded separately to the front outer seat 32 and the rear outer seat 33, respectively. The lower end of 35 and the lower end of the rear valve seat 36 can also be welded together on the front outer seat 32 (or the rear outer seat 33). Further, the lower end of the front valve seat 35 and the lower end of the rear valve seat 36 are welded to each other so that the storage portion 11 is constituted only by the valve seat 34 (the front valve seat 35 and the rear valve seat 36), and the outer seat 31 is formed. It may not be welded to (the front outer sheet 32 and the rear outer sheet 33).

(Embodiment shown in FIG. 7) In the previous embodiment, the spout outflow portion 20 was used, but in the example of FIG. (The front outer sheet 32 and the rear outer sheet 33) are welded to form the sealed outflow portion 19. At the time of use, a part of the sealed outflow portion 19 is cut with scissors or the like to form an outlet.

(Embodiment shown in FIG. 8) In this embodiment, one of the valve seals 51 (fill port side valve seal 54, discharge flow path side valve seal 55) is shared with the right side seal 60b. Specifically, the filling port side valve seal 54 is provided on the right side, and the right side seal 60 b plays the role of the discharge flow path side valve seal 55, thereby the discharge flow path side valve seal 55. Need not be provided separately. In this example, the spout 41 is provided on the top, and the direction thereof is also provided upward.

In this example, in order to provide the spout 41, the lateral width of the discharge passage 15 defined by the passage partition seal 57 and the right side seal 60b is defined by the filling port side valve seal 54 and the right side seal 60b. Although it is set to be larger than the lateral width of the valve passage 13, the width of both may be set equal. In addition, the width of the upstream end of the valve passage 13 is set wider than the width of the downstream end of the valve passage 13 so that the contents easily flow out and backflow of outside air or the like is difficult. The valve seal 54 and the discharge flow path side valve seal 55 can be made parallel to each other so that the width between them is constant.

In each embodiment, when the lateral width of the valve passage 13 is large, by providing the valve passage inner seal 70, the valve passage 13 can be divided into a plurality of parts in the width direction, which improves the sealing performance by the check valve. It is desirable. The valve passage inner seal 70 seals the front outer seat 32, the front valve seat 35, the rear valve seat 36, and the rear outer seat 33. The seal between the front valve seat 35 and the rear valve seat 36 is provided. You may stop just to seal. In each embodiment, a plurality of valve passages 13 can be provided at a plurality of locations. In the example of FIG. 8A, the valve passage inner seal 70 has a single linear shape, but this is not limiting, and as shown in FIG. 8B, the passage gradually inclines toward the downstream side. The valve passage inner seal 70 is configured by a gradually narrowed valve passage inner seal 70a and a valve passage inner seal 70b connecting the passage section seal 57 from the downstream end of the valve passage oblique seal 70a. However, various modifications can be made.
Furthermore, in this example, a bottom auxiliary seal 68 is provided at the bottom to stabilize the shape of the bottom.

(Embodiment shown in FIG. 9) In this embodiment, for the purpose of improving the self-supporting property of the packaging body 10, the bottom regulating member 45 is attached to the bottom to stabilize the shape of the bottom. The bottom regulating member 45 can be implemented by changing to other shapes such as a circle or an ellipse in addition to an annular member having different front and rear lengths and left and right lengths as shown in the figure. A hard synthetic resin or metal is suitable for the bottom regulating member 45, but can be appropriately changed and implemented on condition that the bottom regulating member 45 can be attached to the bottom of the package 10. For secure mounting, the bottom regulating member 45 may be fixed to the packaging body 10 by adhesion, welding, or fitting of irregularities. For simple mounting, the bottom regulating member 45 is elastic. It may be deformed and fitted inside the bottom seal 64. Therefore, it is preferable that the outer periphery of the bottom regulating member 45 is set to be slightly larger than the inner periphery of the bottom of the packaging body 10, and the upper and lower widths of the bottom seal 64 are larger than the width of a normal heat seal. . Specifically, it is desirable that the width is set to about 5 to 15 mm, and the vertical width of the bottom portion regulating member 45 is set to be approximately the same so that the bottom portion can be securely attached to the bottom portion.

(Embodiment shown in FIG. 10) This embodiment shows an example in which the contents are filled from the bottom of the package 10. Since the filling is performed from the bottom, the passage section seal 57 for separating the passage portion 14 into the discharge passage 15 and the filling passage 16 as in the previous embodiment is not necessary. Accordingly, the passage portion 14 is only provided with the guide seal 69 for smoothly guiding the contents to the spout 41 provided at the top. In this example, the left and right guide seals 69 are formed from the contact point between the left downstream seal 56a and the left side seal 60a and the contact point between the right downstream seal 56b and the right side seal 60b at the upper end of the valve seat 34 in the figure. It extends toward the spout 41 in the downstream direction (upward in the figure), but it can also be extended from the middle of the passage side seal 62 above this, or the left downstream seal 56a and the right downstream seal 56b It can also be extended from the middle.

In this example, the packaging body 10 is formed symmetrically, but since there is no distinction between the discharge passage 15 and the filling passage 16, the valve passage 13 defined by the valve seal 51 is also included in the passage portion 14. It is sufficient to conduct to the appropriate position. Further, the valve upstream side seal 65 is also formed symmetrically so as to connect the lower end of the valve seal 51 and the reservoir side seal 61, but may be changed as long as the contents are guided to the valve passage 13. Can do.

The bottom of the package 10 is not provided with the bottom sheet 37 as in the previous example, and the bottom seal 64 is used to provide the outer sheet 31 (front outer sheet 32, rear outer sheet 33) and the valve sheet 34 (front valve sheet 35). , The upstream end of the rear valve seat 36) is welded, and the bottom portion is the filling port 17.

Although not shown, an outer sheet 31 (front outer sheet 32, rear outer sheet 33) and a valve seat 34 (front valve sheet 35, rear valve sheet 36) are welded to the bottom portion that becomes the filling port 17. It is desirable to have a sealed seal. This seal plays the same role as the left downstream seal 56a according to the first embodiment. By sealing the outer seat 31 and the valve seat 34, the nozzle is definitely moved forward during the filling operation. It can be inserted between the valve seat 35 and the rear valve seat 36. The filling port 17 is closed by a bottom seal 64 after filling the contents. A bottom sheet 37 may be provided, and a space between the bottom sheet 37 and the valve seat 34 (the front valve seat 35 or the rear valve seat 36) may be used as a filling port.

(Embodiment shown in FIG. 11) The package 10 according to this embodiment shows an example in which only one valve seat 34 is used. In this example, the valve passage 13 and the reservoir 11 are formed between the front outer seat 32 and the valve seat 34. A promotion member 38 is positioned between the valve seat 34 and the rear outer seat 33, and a rear non-storage part 25 is formed. In this example, the valve action of the check valve is achieved by the valve seat 34 coming into close contact with and away from the front outer seat 32. The check valve can function to maintain freshness while having a relatively simple structure. It is.

(Regarding Spout 41) With reference to FIGS. 12 and 13, the spout 41 will be described in more detail. The spout 41 can also be implemented as a spout having a true circular cross section, like a normal spout, but the spout 41 shown in FIGS. 12 and 13 has a length a in the front-rear direction of the spout 81. It is smaller than the length b in the left-right direction. And this spout 41 is attached by making the front-back direction of the spout 81 match the front-back direction of the package. Specifically, the attachment portion 82 is attached between the front outer sheet 32 and the rear outer sheet 33 by welding or the like. The specific shape of the spout 81 can be variously changed. As shown in FIGS. 12, 13A and 13B, the shape of two circles combined, or as shown in FIG. 13C. An elliptical shape or a substantially rectangular shape as shown in FIG. Although not shown, a triangle, a pentagon or more polygon, or a combination of a polygon and an arc may be used.

In this way, when the length a in the front-rear direction of the spout 81 is smaller than the length b in the left-right direction, when the contents having fluidity are poured out, the packaging body is gradually put into one side (for example, When tilted to the right, the contents are not poured out from the entire spout 81 but are poured out from the lower right of the spout 81 little by little. Thereby, the amount of pouring can be adjusted manually. At this time, air enters the discharge passage 15 from the upper left of the spout 81, but there is no possibility that air enters the storage portion 11 due to the check valve action of the valve portion 12.

Further, if the spout 41 has a too long front and rear length in the mounting portion 82, the distance between the front outer seat 32 and the rear outer seat 33 becomes too large, and the valve seat 34 (front valve seat) of the valve portion 12 below the spout 41 becomes large. 35 and the rear valve seat 36) may be adversely affected, and the check valve function may be incomplete. On the other hand, in the example of FIG. 12, when it is assumed that the opening area is the same as that of a true circular section, the length “a” in the front-rear direction can be made shorter than that of a true circular section. As a result, the length of the mounting portion 82 in the front-rear direction can also be reduced, so that adverse effects on the check valve function can be reduced.

14 to 27 show another embodiment of the spout.
In this spout, the inner plug 120 is rotatably attached to the cylindrical mouth portion 111 of the spout body 110, and the outer lid 130 is attached to the spout body 110 so as to close the cylindrical mouth portion 121 of the inner plug 120. A partition wall 113 is provided in the cylindrical mouth portion 111 of the spout body 110, a bottom wall 122 is provided at the bottom of the cylindrical mouth portion 121 of the inner plug 120, and the bottom wall 122 is formed on the partition wall 113 of the spout body 110. Further, a spout 115 is formed in the partition 113 of the spout body 110, and an opening 124 is formed in the bottom wall 122 of the inner plug 120 so as to overlap the spout 115 of the partition 113.

In the spout of this embodiment, the spout 115 formed in the partition wall 113 of the spout main body 110 has a substantially annular shape with the center of the partition wall 113 as the center point, and the bottom wall of the inner plug 120 The opening 124 formed in 122 has a substantially annular partial shape centered on the center of the bottom wall 122.

Furthermore, in the spout of this embodiment, the spout 115 formed in the partition wall 113 of the spout body 110 has a substantially fan shape with the center of the partition wall 113 as the center point, and is formed in the bottom wall 122 of the inner plug 120. The opening 124 has a substantially fan shape with the center of the bottom wall 122 as the center point.

Further, in the spout of this embodiment, the central angle α1 of the spout 115 that is a part of the substantially annular shape can be changed within a range of about 90 to 210 °, and a part of the substantially annular shape. The central angle α1 of the shaped opening 124 can be changed within a range of about 60 to 170 °, and the width W2 of the opening 124 is equal to the width W1 of the spout 115 that is a part of the substantially annular shape. Are equal.

Furthermore, in the spout of this embodiment, the central angle β1 of the substantially fan-shaped spout 115 can be changed within a range of about 45 to 210 °, and the central angle β2 of the fan-shaped opening 124 is Can be changed within a range of about 30 to 170 °, and the radius R2 of the opening 124 is equal to the radius R1 of the substantially fan-shaped spout 115.

In addition, the spout of this embodiment is provided in the lower part of the bottom wall 122 of the inner plug 120 and close to the opening 124 formed in the bottom wall 122 and protrudes into the spout 115 of the partition wall 113 of the spout body 110. It is assumed that an anti-rotation projection 125 is provided.

The spout of this embodiment is configured as described above, and the size of the spout can be easily changed freely, so that the amount of spout can be adjusted in a wide range. It became possible.

Hereinafter, the spout of this embodiment will be described in more detail.
The spout of this embodiment includes a spout body 110, an inner plug 120, and an outer lid 130. The inner plug 120 is rotatably attached to a cylindrical port portion 111 of the spout main body 110, and the cylindrical port portion of the inner plug 120 is provided. 121 is closed, and the outer lid 130 is screwed onto the spout body 110 and attached.

The spout body 110 is provided with a mounting portion 112 for the outer sheet 31 of the package 10 at a lower portion of the cylindrical mouth portion 111, a partition wall 113 is provided in the cylindrical mouth portion 111, and an outer lid is provided on the outer periphery of the cylindrical mouth portion 111. A male screw 114 is provided for screwing with a female screw 311 provided on the inner periphery of 130. Further, a flange 116 serving as a holding portion when carrying the packaging body 10 or the like or a supporting portion for the packaging body 10 or the like is provided on the upper portion of the mounting portion 112. The spout body 110 can be attached by directly fusing the flange 116 to the packaging body 10 or the like. In this case, the attachment portion 112 may not be provided.

The inner plug 120 is provided with a bottom wall 122 at the bottom of the cylindrical mouth part 121, the bottom wall 122 is in contact with the partition wall 113 of the spout body 110, and a cylindrical cover around the outer periphery of the cylindrical mouth part 121. An attachment body 123 is provided, and an upper portion of the cylindrical mouth portion 111 of the spout body 110 is inserted between the adherend body 123 and the outer periphery of the cylindrical mouth portion 121, and an inner plug 120 is provided around the cylindrical mouth portion 111. It is designed to be rotatable. Moreover, it is also preferable that the upper part of the adherend 123 is provided with a display 126 such as “·” and “●” indicating the degree of opening of the spout 115 of the spout body 110 and an arrow or a character as described later. The display 126 may be attached to the outer periphery of the adherend 123.

Further, a spout 115 is formed in the partition 113 of the spout body 110, and an opening 124 is formed in the bottom wall 122 of the inner plug 120 so as to overlap the spout 115 of the partition 113. The spout 115 and the opening 124 are not limited to the shapes described later, and the spout 115 and the opening 124 may or may not have the same shape.

The spout 115 formed in the partition wall 113 of the spout body 110 has a partial shape of a substantially annular shape (substantially circular ring shape) centered on the center of the partition wall 113 as shown in FIGS. The central angle α1 is assumed to be about 210 °. Further, as shown in FIGS. 21 and 22, the spout 115 has a substantially fan shape with the center of the partition wall 113 as the center point, and the center angle β1 is about 120 °.

Note that the central angle α1 of the spout 115 formed into a part of the substantially annular shape can be changed within a range of about 90 to 210 °, and the central angle β1 of the spout 115 formed into the fan shape is It can be changed within a range of about 45 to 210 °.

As shown in FIGS. 19 and 20, the opening 124 formed in the bottom wall 122 of the inner plug 120 has a partial shape of a substantially annular shape (substantially circular ring shape) centering on the center of the bottom wall 122. The center angle α2 is about 170 °. Further, as shown in FIGS. 123 and 24, the opening 124 has a substantially fan shape with the center of the bottom wall 122 as a center point, and its center angle β2 is about 90 °.

The central angle α2 of the opening 124 having the substantially annular shape can be changed within a range of about 60 to 170 °, and the width W2 of the opening 124 is a part of the substantially annular shape. It is assumed that it is equal to the width W1 of the shaped spout 115. The central angle β2 of the fan-shaped opening 124 can be changed within a range of about 30 to 170 °, and the radius R2 of the opening 124 is the radius R1 of the substantially fan-shaped spout 115. Is assumed to be equal to

Further, at the lower part of the bottom wall 122 of the inner plug 120, there is provided an anti-rotation projection 125 that is brought close to the opening 124 formed in the bottom wall 122 and projects into the spout 115 of the partition wall 113 of the spout body 110. It is assumed that it was provided.

In the case where the locking projection 125 is provided at the lower portion of the bottom wall 122 of the inner plug 120, the central angle of the opening 124 formed in the bottom wall 122 of the inner plug 120 is equivalent to the provision of the locking projection 125. α2 and β2 are set to be smaller than the central angles α1 and β1 of the spout 115 formed in the partition wall 113 of the spout body 110.

In the spout of this embodiment configured as described above, the amount to be dispensed is adjusted as follows.
First, in the spout of this embodiment, with the outer lid 130 removed from the spout body 110, the spout is rotated in the direction opposite to the clockwise direction (the “small” direction of the display 126). The stopper projection 125 of the inner stopper 120 is moved in the spout 115 of the main body 110, and the stopper projection 125 is brought into contact with one end 115a of the spout 115 of the spout body 110 and stopped. Then, as shown in FIG. 25, the spout 115 of the spout body 110 is almost blocked by the bottom wall 122 of the inner plug 120 (it does not almost overlap the opening 124 of the bottom wall 122 of the inner plug 120). Only open.

Next, from the state shown in FIG. 25, the inner plug 120 is gradually rotated clockwise (the “multiple” direction of the display 126) to rotate the inner plug 120 within the spout 115 of the spout body 110. The stop projection 125 is moved, and the rotation stop 125 is stopped at an intermediate position of the spout 115 of the spout body 110. Then, as shown in FIG. 26, the spout 115 of the spout body 110 is blocked about half by the bottom wall 122 of the inner plug 120 (overlaps about half of the opening 124 of the bottom wall 122 of the inner plug 120), and half It will be in the open state.

Further, from the state shown in FIG. 26, by rotating the inner plug 120 gradually in the clockwise direction ("multiple" direction of the display 126), the rotation of the inner plug 120 within the spout 115 of the spout body 110 is stopped. The protrusion 125 is moved, and the rotation stopping protrusion 125 is brought into contact with the other end 115b of the spout 115 of the spout body 110 and stopped. Then, as shown in FIG. 27, the spout 115 of the spout body 110 is hardly blocked by the bottom wall 122 of the inner plug 120 (it overlaps all the openings 124 of the bottom wall 122 of the inner plug 120), and almost It will be in an open state.

Therefore, in the spout of this embodiment, the size of the spout 115 of the spout body 110 can be easily changed freely by the turning operation of the inner plug 120, and the amount of the spout can be varied over a wide range. It can be adjusted.

DESCRIPTION OF SYMBOLS 10 Package 11 Storage part 12 Valve part 13 Valve passage 14 Passage part 15 Discharge passage 16 Filling passage 17 Filling port 18 Outflow part 19 Sealed outflow part 20 Spout outflow part 23 Non-storage part 24 Front non-storage part 25 Rear non-storage part 26 Air hole 27 Recess 31 Outer sheet 32 Front outer sheet 33 Rear outer sheet 34 Valve seat 35 Front valve seat 36 Rear valve seat 37 Bottom sheet 38 Promotion member 39 Front promotion member 40 Rear promotion member 41 Spout 42 Lid 43 Crease line 44 Folding part 45 Bottom regulating member 51 Valve seal 54 Fill port side valve seal 55 Discharge flow path side valve seal 56a Left downstream seal 56b Right downstream seal 57 Passage partition seal 58 Fill port seal 60a Left side seal 60b Right side seal 61 Reservoir Side seal 62 Passage side seal 63 Auxiliary seal 64 Bottom 65 Valve upstream seal 66 Top seal 67 Valve bottom seal 68 Bottom auxiliary seal 69 Guide seal 70 Valve passage seal 71 Top heat resistant plate 72 Bottom heat resistant plate 81 Spout 110 Spout body 120 Inner plug 130 Outer lid 115 Note Exit

Claims

A storage part for fluid contents, a valve part arranged downstream of the storage part, a passage part arranged downstream of the valve part, and an outflow part arranged downstream of the passage part Prepared,
The valve portion is in an open state that allows the contents to flow out from the reservoir portion to the passage portion by movement of a valve seat in the valve passage, and in a closed state that stops the flow of fluid from the passage portion to the reservoir portion. Is a check valve,
In the package for fluid storage,
Comprising at least two outer sheets before and after defining at least part of the outer shape of the package,
The valve seat is disposed inside the outer seat,
The valve passage is configured by overlapping the valve seats or by stacking the outer seat and the valve seat, and the width of the valve passage is defined by left and right valve seals that seal these seats. In the valve passage, the valve seat moves in the thickness direction, so that the open state and the closed state are switched,
The valve seat extends upstream from the valve portion, and constitutes at least a part of the outer wall of the storage portion,
A fluid storage, wherein a non-storage portion partitioned from the reservoir portion so as not to conduct is formed between the valve seat and the outer sheet, and the contents are not stored in the non-storage portion. Packaging.
The passage portion is partitioned into a discharge passage and a filling passage by a passage partition seal,
The discharge passage is electrically connected to the valve passage upstream and is electrically connected to the outflow portion downstream.
The filling passage is connected to the storage portion in the upstream, and is connected to the filling port in the downstream.
The content is filled into the reservoir through the filling passage from the filling port,
The package for storing fluid according to claim 1, wherein at least one of the filling port and the filling passage is closed by a filling port seal after the contents are filled.
The outer seat is higher in rigidity than the valve seat,
The outer sheet includes a front outer sheet and a rear outer sheet,
The valve seat includes a front valve seat and a rear valve seat,
The valve passage is a passage formed between the front valve seat and the rear valve seat,
The reservoir is a space formed between the front valve seat and the rear valve seat,
The non-housing portion includes a front non-housing portion formed between the front outer seat and the front valve seat, and a rear non-housing portion formed between the rear outer seat and the rear valve seat. The package for storing fluid according to claim 2, wherein the package is provided.
The valve portion includes an accelerating member that promotes movement of the valve seat to the closed state,
The promotion member includes a front promotion member disposed between the front outer seat and the front valve seat, and a rear promotion member disposed between the rear outer seat and the rear valve seat,
The package for storing fluid according to claim 3, wherein the front promoting member and the rear promoting member are arranged with their upstream and downstream positions shifted.
The outflow part is one of a sealed outflow part and a spout outflow part,
The sealed outflow part is sealed by sealing the outer sheets, and is cut and opened at the time of use,
The spout outflow part is obtained by joining a spout, which is a molded product of a synthetic resin, to the outer sheet, and the spout has a lid that can be opened and closed, and is opened by removing the lid. 5. The package for storing fluid according to claim 1, wherein the package is for storing fluid.
The valve seat is disposed in the storage portion and the valve portion, and is not substantially disposed in the passage portion,
The left and right sides of the package body are defined by a left side seal on the left side of the passage section seal and a right side seal on the right side of the passage section seal,
In the storage portion, the side seal is a seal between all of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat, and in the passage portion, , The front outer sheet and the rear outer sheet are sealed,
The valve seal includes a filling port side valve seal connected to the upstream side of the passage section seal, and a discharge flow path side valve seal shared with the right side seal,
Between the downstream end of the valve seat and the outer seal, except for the valve passage, is sealed by a downstream seal,
The downstream seal is formed between the left side seal and the downstream side of the filling port side valve seal,
The downstream seal seals the front outer seat and the front valve seat, seals the rear outer seat and the rear valve seat, and does not seal the front valve seat and the rear valve seat. The package for storing fluid according to claim 3 or 4, wherein the package is for storing fluid.
In the valve passage, a seal in the valve passage is formed between the filling side valve seal and the right side seal,
The fluid storage according to claim 6, wherein the seal in the valve passage is divided into a plurality of portions in the left-right direction by sealing at least between the front valve seat and the rear valve seat. Packaging.
The valve seat is disposed in the storage portion and the valve portion, and is not substantially disposed in the passage portion,
The left and right sides of the package body are defined by a left side seal on the left side of the passage section seal and a right side seal on the right side of the passage section seal,
In the storage portion, the side seal is a seal between all of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat, and in the passage portion, , The front outer sheet and the rear outer sheet are sealed,
The valve seal includes a filling port side valve seal connected to the upstream side of the passage partition seal, and a discharge flow path side valve seal extending from the discharge flow path to the upstream side,
Between the downstream end of the valve seat and the outer seal, except for the valve passage, is sealed by a downstream seal,
The downstream seal includes a left downstream seal passed between the left side seal and the downstream side of the filling port side valve seal, and the right side seal and the discharge flow path side valve seal. With the right downstream seal passed in between,
The left downstream seal is formed on the upstream side of the filling passage, seals the front outer seat and the front valve seat, and seals the rear outer seat and the rear valve seat. And the front valve seat and the rear valve seat are not sealed,
The right downstream seal is formed on the upstream side of the discharge passage, and seals between all of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat. Is what
An auxiliary seal is passed between the upstream side of the discharge flow path side valve seal and the right side seal,
5. The fluid according to claim 3, wherein the auxiliary seal seals between all of the front outer seat, the front valve seat, the rear valve seat, and the rear outer seat. Packaging for storage.
The spout is attached between the front outer sheet and the rear outer sheet,
The spout includes a spout that allows the contents in the passage portion to flow out to the outside.
The package for storing fluid according to claim 5, wherein the spout has a length in the front-rear direction smaller than a length in the left-right direction.
The spout is provided with a spout that allows the contents in the passage portion to flow out to the outside, and the spout can be adjusted by changing its size from the outside of the spout. The package for storing fluid according to claim 5, wherein the package is for storing fluid.