KR20130015844A - Structure of check valve for use in a vacuum sealing container for food and other objects - Google Patents

Abstract

The construction of the vacuum sealed container for food and other objects preserves the contents and moisture in the vacuum sealed container while preventing the ingress of air from the outside. A vacuum sealed container can create a vacuum, which allows long-term storage of food or drugs in the vacuum sealed container. Vacuum sealed container and can continue to create the vacuum to be able to control valve in the exhaust air in the vacuum sealed container to the outside, reclosable zipper may completely seal the vacuum sealed container. The regulating valve is made of a thin film to prevent air from entering the outside and the penetration waterproof material is used because it prevents the inside of the vacuum seal container from leaking to the outside.

Description

Structure of check valve for use in a Vacuum sealing container for food and other objects}

The present invention relates to a control valve and a vacuum sealed container, in which a liquid is discharged from the vacuum sealed container to the outside using a practical control valve in a vacuum sealed container for storing food or other objects, as well as air flowing into the vacuum sealed container. It can be prevented from being kept in a vacuum state and has a resealable zipper that can completely seal the air so that foods and the like can be stored in the vacuum container for a long time.

Resealable zipper bags are widely used to store vegetables, meat, seafood, clothing and medicines. Generally, food or objects are put through the opening of the container and the opening is closed. Food containers, especially, can be stored in refrigerators or freezers for later storage.

1A and 1B show an example of a sealing bag having a resealable zipper such as Ziploc. FIG. 1A shows the state of the sealing bag 9 with the resealing zipper 11 open. In this state, consumers can put food, clothing, medicine, and the like into the sealing bag 9 through the opening.

1B shows the same sealing bag 9 but with the resealing zipper 11 closed. The resealable zipper 11 is sutured in two parts: an elastic groove in the sealing bag and a protrusion that fits into the groove. Pushing the protrusion into the groove closes the zipper 11. When an appropriate force is applied to separate the projection from the groove of the zipper 11, the zipper 11 is detached to make the opening of the sealing bag 9, and the objects inside the sealing bag 9 can be taken out.

Vacuum sealing is a well known technique for increasing the shelf life of a wide variety of target materials. This technique removes the air in the sealed bag and flattens the sealed bag into a vacuum. Due to the low amount of air in the sealed bag, food-like substances can be protected from chemical reactions that can degrade the quality of the object.

Vacuum sealing is widely used at home as well as at work. Many types of products, such as “FoodSaver”, which require a special plastic cloth and a device to heat seal the plastic cloth and draw air out to vacuum the inside of the plastic cloth, are commercially available for vacuum sealing to store food. It is possible. However, these devices occupy a relatively large space, require electricity to pump air outward, and plastic fabrics cannot be easily reused.

Furthermore, a sealed container with a control valve is used to store the objects contained therein. The regulating valve is designed to allow air to flow forward (inside out) while preventing air from entering in from the outside, thus facilitating the evacuation of the air in the sealing bag. Special foods, such as coffee beans or other grains, food sometimes give off gas, so an effective discharge is needed to prevent the increase of such gas in the container. Recently, as a control valve as mentioned above, a one-way valve is provided for degassing the coffee bean bag.

Typically these control valves are made of plastic and attached to a sealing bag. However, such a sealing bag has disadvantages such as high production cost and complex structure. So there is a demand to solve the problems described above. In addition, there is a demand that a vacuum seal container should be used easily and conveniently. Moreover, the vacuum seal container has the charm of being easily reusable.

It is an object of this invention to provide a structure of a vacuum seal container that facilitates the removal of air or gas from the vacuum sealer using resealing zippers and control valves.

Another object of this invention is to provide a regulating valve for a vacuum sealed container which can prevent the inflow of air or gas while keeping moisture out.

The control valve used in the vacuum sealing container according to the present invention comprises a first outer film, a second outer film, a moisture permeable waterproofing material that is permeable to air but prevents the ingress of liquid, and the control valve film comprises a first An air passage is formed between the outer film and the second film, and an air passage is formed between the control valve and the upper film or the lower film, and a sealing portion is provided in the air passage that prevents a smooth flow of air. The moisture penetration waterproofing material forms part of the air passage to prevent the flow of liquid through the air stream.

Further, the regulating valve used in the vacuum sealed container includes a first waterproofing film, a second outer film, a penetration waterproofing material having a property of preventing the penetration of liquid and allowing the penetration of air and moisture. A pair is located between the first outer film and the second outer film, and a sealing portion is provided in the air passage that prevents the smooth flow of the air. The moisture penetration waterproofing material forms part of the air passage to prevent the flow of liquid through the air stream.

The regulating valve may have a sealing portion comprising a V-shaped narrow downward portion which gradually narrows the passage of air in the direction of air flow.

In another aspect, a vacuum sealed container can receive an object therein and is provided at a bag portion having a first outer film, a second outer film, and at one edge of the bag portion to open or close the bag portion. Which comprises a resealable zipper and a regulating valve. The control valve includes a control valve film positioned between the first outer film and the second outer film, an air passage formed between the control valve film and the upper or lower film, and prevents penetration of liquid but permits penetration of air and moisture. A permeable waterproof material having properties capable of sealing, wherein the sealed portion is provided in an air passageway where the sealed portion of the air prevents a smooth flow of the air, and the moisture permeable waterproof material prevents the flow of liquid through the air stream. To form part of the air passage.

The inner portion of the bag portion has protrusions to prevent the smooth flow of the liquid, preventing the liquid from flowing in the direction of the control valve. The resistance portion of the bag poriton can make a symbolic mark.

The regulating valve may have an open straw-shape protruding from the end of the regulating valve. The control valve may have a lid that is straw-shaped and suitable for the protruding portion.

In another aspect of a vacuum sealed container, the resealed zipper is a sliding zipper having a sliding handle that slides between the sliding zippers for opening or closing the sliding zipper seal. The vacuum sealed container may have a plurality of resealable zippers next to each other and one handle that slides between the resealable zippers for opening or closing the sliding zipper seal.

The vacuum sealed food container further has an outer resealing zipper located further than the outer surface of the resealing zipper, wherein the opening of the control valve is located between the two resealing zippers.

According to the present invention, the vacuum sealed container is provided with a resealing zipper and a control valve, so that air or other gas can be easily removed from the vacuum sealed container. The vacuum sealed container may allow forward flow of air while preventing reverse flow of air to maintain the vacuum of the vacuum sealed container. At the same time, the vacuum sealed container prevents liquid from flowing out of the vacuum sealed container. Thus, objects such as meat in a vacuum sealed container can be preserved for a long time without being exposed to the atmosphere. Because the liquid inside is prevented from flowing out by the control valve, the vacuum sealed container can keep the liquid such as meat juicy in the vacuum sealed container for a long time taste and freshness invariably.

1A and 1B show a container having a resealable zipper for storing an object, in which FIG. 1A shows a closed state, and FIG. 1B shows a opened state.
Figures 2a and 2b is a cross-sectional view showing an example of a resealable zipper that can be used in the vacuum sealing container according to the present invention, Figure 2a is a zipper open state, Figure 2b is a zipper closed state.
3A and 3B are perspective views of a vacuum sealed container according to the present invention, in which FIG. 3A shows that food is inserted therein with the resealed zipper open, and FIG. 3B shows that the internal air is vacuumed when the resealed zipper is closed. Indicates outflow to create conditions.
4 is an exemplary view showing an example of a situation in which air or gas is removed from the inside of the vacuum sealing container through the control valve after closing the zipper.
5A-5C are perspective views showing an example of a vacuum sealed container according to the present invention having a control valve in a different position from the other, in which the control valve is provided separately from the resealable zipper. 5b shows what is provided at the side end of the sealing zipper and FIG. 5c shows that the control valve is provided at the middle part of the resealing zipper.
6 is an exemplary view showing a vacuum sealed container according to the present invention by separating the bag portion, the resealing zipper, the control valve from each other to show the structure of the vacuum sealed container according to the present invention.
7A and 7B are cross-sectional views showing the bonding structure of the control valve according to the present invention, FIG. 7A is a flat cross-sectional view, and FIG. 7B is a side cross-sectional view.
8 is a corresponding partial cross-sectional view of FIG. 7B of the control valve of the present invention for explaining the operation of a control valve in which two control valve films are tightly closed when a reverse flow occurs.
9A and 9B are cross-sectional views showing examples of other structures of the control valve for explaining the basic operation of the control valve for preventing the reverse flow of air.
10A-10D are simple side views illustrating an example of the structure of a regulating valve for a vacuum sealed container according to the present invention, showing that the positions of the moisture penetration waterproofing materials are different.
11 is a perspective view showing an embodiment of a vacuum sealed container according to the present invention, wherein a cylindrical inlet is provided at the end of a control valve.
12A and 12B are side views showing examples of the structure of the bag portion paper for the vacuum sealed container according to the present invention, wherein the bag portion inner surface has protrusions and nonuniformities for making resistance to the liquid inside the vacuum sealed container.
13A and 13B are views of a vacuum sealed container according to the present invention, in which a sliding resealable zipper is provided on top of the container, FIG. 13A shows a single zipper, and FIG. 13B shows a double zipper.
14 is a view showing another example of the vacuum sealed container according to the present invention, showing the upper zipper provided separately from the control valve and the lower zipper.

The vacuum sealed container with a resealing zipper has a regulating valve to increase the ease of removing air or gas from the interior of the vacuum sealed container and preventing the air from entering the container. When the vacuum seal container is pressed by hand to evacuate air in the vacuum seal container, the vacuum seal container creates a vacuum packing condition therein. Although the present invention primarily describes the packaging of food in a vacuum sealed container, various other objects such as clothing, chemicals, cosmetics, fibers, and the like can be stored in the vacuum sealed container of the present invention.

Since the control valve allows the flow of air to flow in one direction (forward direction) and prevents the flow in the opposite direction (reverse direction), when the control valve is opened, the outside air does not enter the vacuum sealed container but the air in the vacuum sealed container. Can fall out easily. Thus, objects such as food can be stored in a vacuum sealed container for a long time because they are not exposed to the atmosphere. Furthermore, clothing packaged in a vacuum sealed container may be stored in a closet or garment storage in a minimum size.

2A and 2B are partial side cross-sectional views of a resealable zipper 11 that can be used in a vacuum sealed container according to the present invention. FIG. 2A shows the resealed zipper 11 (when the vacuum sealed container is opened) and the resealed zipper 11 (when the vacuum sealed container is closed). As shown, the resealable zipper 11 is constituted by the groove portion 12 and the protruding portion 13.

When the groove portion 12 and the projection portion 13 are pressed toward each other, the projection portion 13 comfortably fits the groove portion 12 and the zipper 11 is closed. The groove portion 12 and the protruding portion 13 have a suitable elasticity and firmness so that the resealing zipper 11 can be securely locked. When the resealing zipper 11 is closed, air and water do not leak easily from the container.

This type of zipper for sealing container bags is widely used today. The resealable zippers that can be used in the vacuum sealed container of the present invention are not particularly limited to those mentioned in FIGS. 2A and 2B above. Those skilled in the art will appreciate many other types of resealing zippers that may be used. In the present invention, the control valve is formed in the container in combination with the resealing zipper described below.

3A and 3B are perspective views showing a vacuum sealed container according to the present invention. 3A shows that the vacuum sealed container 80 has a control valve 38 and a resealing zipper 88, and that an object 91 such as food is inserted into the vacuum sealed container 80. FIG. 3A shows the resealing zipper 88 open. FIG. 3B shows the resealing zipper 88 closed and the air inside the vacuum seal container 80 is vented out through the control valve 38. Similar to

Thus, the interior of the vacuum sealed container is basically free of air and eventually becomes a vacuum state. As mentioned above, this allows objects 91 such as meat to live longer. The vacuum-sealed container 80 according to the present invention can, for example, store many foods such as meat, cheese, vegetables, tea, coffee beans, fish and the like for a long time. Moreover, as mentioned above, the vacuum sealed container 80 according to the present invention can store not only food products but also drugs, chemicals, clothes, and the like.

Furthermore, the vacuum sealed container according to the present invention can be used for storing grains which discharge gas, for example, coffee beans, beans and the like. As is known in the art, grains, such as coffee beans, generate gases for a relatively long time due to chemical reactions. In such a case, the vacuum sealed container according to the present invention is not folded to discharge the gas, and the gas produced by the coffee beans in the vacuum sealed container is automatically discharged to the outside through the control valve.

FIG. 4 shows a vacuum sealed container 80 as shown in FIGS. 3A and 3B to show that the user presses the vacuum sealed container 80 to remove air and the air inside the vacuum sealed container 80 flows outward. ). When the user inserts the object into the vacuum sealing container 80 and closes the resealing zipper 88, the vacuum sealing container 80 may be sealed in water or liquid so that the product may be safely stored therein.

In this example, a control valve 38 is provided at the side end of the resealable zipper 88 of the vacuum sealed container 80. The arrows indicate the flow of air when the vacuum sealed container 80 is pressed or compressed. Since the regulating valve 38 prevents flow, air from the outside does not enter the vacuum sealed container 80. The structure and operation of the regulating valve 38, which can be conveniently used in accordance with the present invention, is described in detail later with reference to FIGS. 7A, 7B and 8.

5A to 5C are perspective views showing an example of a structure different from the vacuum sealed container shown in FIGS. 3A and 3B. In FIG. 5A, the vacuum sealed container 80 has a control valve 38a located on one side of the bag that is separated from the resealable zipper 88. Although the control valve 38a is located proximate to the resealing zipper 88, it is located away from the resealing zipper 88, such as one end of the vacuum sealing container 80, as opposed to the position where the resealing zipper 88 is formed. It may be formed apart.

5B shows another embodiment in which a portion of the regulating valve 38b protrudes from the vacuum sealed container 80. In all cases of FIGS. 5A-5C, the vacuum sealed container 80 may contract by pressing or squeezing the vacuum sealed container 80 or sucking the internal air to remove the air therein, as in a similar manner as mentioned above. Can be. Although one regulating valve is provided in each vacuum sealed container 80, a plurality of regulating valves may be provided in each vacuum sealed container 80 to easily discharge the air inside.

It is also possible for the control valve 38C to be located in an intermediate position of the resealed zipper 88 as shown in FIG. 5C. This configuration saves the necessary space for positioning the control valve 3C because no additional space is required. The number of control valves for the vacuum-sealed food container is not limited to one, and a number of small control valves may be installed in each vacuum-sealed container 80 to easily discharge the air inside.

6 is an exemplary view showing a vacuum sealed container according to the present invention, in which the bag portion 39, the control valve 38, and the resealable zipper 88 are separated from each other to show a configuration relationship between the respective components. . The bag portion 39 is a bag container for holding a package object such as food, clothing, medicine, etc., and is preferably made of an elastic film such as a thermoplastic film. The bag portion 39 has an inlet through which the object can enter.

The resealable zipper 88 is an envelope or lock that can be used repeatedly as mentioned above. The resealable zipper 88 is attached to the inlet of the bag portion 39. The control valve 38, which will be described in detail below, is also attached to the inlet of the bag portion 39. Means for attaching the resealable zipper 88 and control valve 38 may include heat bonding, adhesives, and the like. As a result, the vacuum sealed container 80 can be made as shown in FIGS. 3A-3B and 5A-5C.

The control valve 38 used in the vacuum sealed container 80 according to the present invention is described in detail with reference to the accompanying drawings. The structure of the regulating valve 38 according to the present invention allows more freedom in designing the vacuum sealed container 80 to significantly reduce the size of the regulating valve. In the application of the vacuum sealed container 80, the regulating valve 38 comprises a portion of the moisture penetrating waterproofing material such that air (gas or moisture) passes through and liquid (water) does not pass through.

Namely, in addition to the regulating valves used in common air packaging devices inflated with compressed air to safely package the products therein, the regulating valves in the present invention have an additional element made of a moisture resistant material. Due to the moisture repellent material used in some of the regulating valves, the regulating valve has an increased volume to prevent liquid from escaping through the regulating valve. Therefore, a liquid such as meat gravy or the like is retained in the vacuum sealed container 80 while the air therein is removed therein. Furthermore, the control valve 38 according to the invention can be flexibly attached to the vacuum sealed container 80 at any position.

7A and 7B are partial cross-sectional views showing in more detail an example of the internal structure of the control valve of the present invention. FIG. 7A is a partial cross-sectional view of the control valve, and FIG. 7B is a partial side cross-sectional view of the control valve along line 7b-7b of FIG. 7A. 7A and 7B, two plastic films of the vacuum sealed container 80 and two plastic films of the control valve 38 overlap one by one.

In the vacuum sealed container 80 having the configuration shown in FIGS. 7A and 7B, a control valve 38 is located adjacent to the resealing zipper 88, and reference numerals 31 a and 31 b denote the bag portion of the vacuum sealed container 80 ( Plastic films or sheets (first and second outer films) making 39). Reference numerals 32a and 32b denote plastic films or seats making the control valve 38. Plastic films 31a, 31b, 32a, 32b are thermoplastic films that are sealed or heat sealed to each other when adequate heat is provided.

In FIGS. 7A and 7B, the upper portion of the control valve 38 is arranged to abut the outer surface 34 of the vacuum seal vessel 80. In FIGS. 7A and 7B, the lower part of the control valve 38 is arranged to abut the inner face 33 of the vacuum sealing container 80. As shown in FIG. 7A, an air passage 48 is formed in the control valve 38 to indicate the flow of air by white arrows 47a, 47b and 47c.

In this example, the moisture permeable waterproof material layer 90 is provided to the regulating valve film 32b as shown in FIG. 7B. The moisture penetration waterproofing material layer 90 has a space that prevents liquids such as water from passing therethrough but allows the penetration of gases such as air, moisture, and the like. The moisture penetration waterproofing material is not a woven or woven porous sheet that is actually woven or not woven.

In brief, the moisture permeable waterproof material layer 90 does not appear in FIG. 7A, but appears as a hatched layer in FIG. 7B. In FIGS. 7A and 7B, the sealing parts 35, 37, 41-42 are configured to form a special structure of the regulating valve. To these sealing portions, control valve films 32a and 32b are attached to one of the container films (first and second outer films) 31a and 31b. Some sealing parts are not basic to the control valve in the present invention and can be omitted.

In the vacuum sealed container 80, two regulating valve films 32a, 32b are sandwiched between two container films (first and second outer films) 31a, 31b. The sealing portion 41 and the reinforcing sealing portion 42 belong to the discharge port portion, the sealing portion 35 belongs to the expanded portion, and the sealing portion 47 belongs to the narrow downward portion. These sealing parts also form the structure of the regulating valve 38 and secure the regulating valve 38 to one of the container films 31 a, 31 b. As a result of this bonding (sealing portion), the regulating valve 38 is formed in the vacuum sealing container 80.

As described, the control valve 38 is made of two flexible plastic container films 31a and 31b and control valve films 32a and 32b, and the air passage 48 is connected to the first control valve film 32b. It is made between the second regulating valve films 32a. The flow of air through the control valve 38 shown by the white arrows is indicated by 47a, 47b and 47c. When the user presses or compresses the vacuum sealed container 80 or sucks the internal air artificially or using a suction tool, the internal air of the vacuum sealed container 80 is discharged out through the control valve 38.

Air from the interior 33 in the regulating valve 38 flows relatively easily through the air passages 48 toward the exterior 34. Even if the sealing portions 35, 37, 41-42 are present, when the air flows in the direction indicated by arrows 47a, 47b and 47c, such sealing portion does not block the forward flow of air. However, the reverse flow of air (from outside 34 to inside 33) does not easily pass through the air passage 48 of the regulating valve 38.

As described, in FIGS. 7A and 7B, the sealing portions 35, 37, 41-42 operate to guide the flow of air in the control valve 38. As shown in the side view of FIG. 7B, the sealing portions consist of portions 41a, 42a, 35a and 37a and bond together two control valve films 31a and 32b (also moisture-permeable waterproof material 90), and portions 41b, 42b, 35b, and 37b bond the first container film 31a and the first regulating valve film 32b together. Thus, the air path 48 in the regulating valve 38 is made as a space formed between the two regulating valve films 31a and 32b and the sealing portions 41, 42, 35 and 37 shown in FIG. 7A.

7a, the sealing parts 37 extend in the upward direction (flow direction) in the figure and consist of two symmetrical line segments (narrow downwards), the width of the air path 48 being these parts. It narrows down by 37. In other words, the general flow easily passes out through the fluid pipe when passing through the large space into the narrow space formed by the narrowly downward portion 37. Conversely, the narrowly downward portions 37 tend to block reverse flow from the outside when the air returns through the narrow space formed by the narrowly downward portions 37.

The expanded portion 35 is formed close to the narrowly downward portions 37 near its upper end. The shape of the expanded portion 35 is close to the heart shape to bypass the air flow. Air passing through the expanded portion 35 flows around the edge of the expanded portion 35 (indicated by arrow 47b). When the air is discharged from the vacuum sealed container 80 to the outside 34, the air naturally flows in the expanded portion 35. In contrast, the reverse flow does not flow directly through the narrowly downward portions 37 because the reverse flow impinges on and bypasses the expanded portion 35.

The outlet portions 41, 42 are formed adjacent the portion 35 which extends near the outer surface 34. In this example, the outlet portion 41 is formed in the upper center of the control valve 38, and the two outlet portions 42 are located symmetrically with respect to the outlet portion 41. The outlet portions 41, 42 are formed in directions perpendicular to each other.

There are some spaces between these outlet portions 41, 42. These spaces form part of the air path through which air passes outward 34 as indicated by arrow 47c. When the internal air is discharged to the container part 34 and the air passes four-bypass through the outlet parts 41 and 42, the outlet parts 41 and 42 are the final passage part of the regulating valve 38. Is formed.

Thus, reverse flow from the outside 34 does not easily pass through the air path 48. Thus, the reverse flow is stopped to some extent by the outlet portions 41, 42. As described, the air flow from the interior 33 to the exterior 34 of the vacuum sealed container 80 propagates relatively smoothly through the control valve 38. Furthermore, the narrowly downward portions 37, the expanded portions 35 and the outlet portions 41, 42 formed in the regulating valve 38 flow in reverse flow (from the outer 34 to the inner 33). To prevent the operation.

8 is a cross-sectional view showing the operation and effect of the control valve according to the present invention for preventing the reverse flow. This embodiment shows the condition of the control valve 38 when reverse flow occurs in the control valve 38. First, air rarely enters the air path 48 because the outlet portions 41, 42 do not allow reverse air flow to enter the control valve 38.

Instead, air flows between the second container film 31b and the second valve film 32a indicated by the arrow 51, which swells due to the atmosphere as shown in FIG. Thus, the second control valve film 32a is pressed to the right, and at the same time, the first control valve 32b is pressed to the left. As a result, the two regulating valve films 32a, 32b are tightly coupled, as indicated by arrow 52, thereby closing the regulating valve 38.

Thus, the forward flow of air is easily performed while the backward flow of air is interrupted. Due to the moisture penetration waterproofing material 90, liquid or water in the product packed in the vacuum sealed container is prevented from flowing through the control valve 38. In other words, the air inside is removed from the vacuum sealed container 80 but the liquid inside is not discharged from the inside because of the moisture penetrating waterproof material 90 in the regulating valve 38.

9A and 9B are cross-sectional views showing another embodiment of a control valve for explaining the basic structure and operation for preventing the reverse direction of the air and to promote the forward direction. In this example, the regulating valve portion is similar to that shown in FIGS. 7A, 7B and 8, but only one regulating valve film is used. 9A shows a state in which air is discharged from the vacuum sealed container through the control valve. 9B illustrates preventing the reverse flow of air.

The sheets 131a and 131b may be plastic films for the bag portion of the vacuum sealed container or films provided on a control valve provided separately from the plastic film for the bag portion. Moisture ingress waterproof material 190 is positioned over control valve sheet 132. The regulating valve sheet 132 is similar to the regulating valve sheet 32b shown in FIGS. 7A, 7B and 8 in that the regulating valve sheet 132 bends so as to contact the opposite sheet to seal the regulating valve due to atmospheric pressure.

As indicated by arrow 195 in FIG. 9A, the air is vented out when the vacuum seal container is pressed or compressed. The air will be exhausted out through an air path formed between the waterproof material 190 and the sheet 131a in the regulating valve. If no force was provided to break the vacuum sealed container, the regulating valve film 132 and the moisture penetrating waterproofing material 190 were pulled by atmospheric pressure to reach the film 131a. Thus, as shown in the state of FIG. 9B, the control valve is closed. Due to the structure of the regulating valve mentioned above, the reverse flow of air does not occur as the opening of the reverse air is prohibited.

10A-10D are simply side views illustrating the control valve portion with respect to the various examples that may be implemented in the control valve portion, in particular the construction of the moisture permeable waterproof material 90. 10A shows a configuration that is the same as the above example. That is, the moisture penetration waterproofing material 90 is located in one of the regulating valve films 32b. It is also possible to position the moisture penetrating waterproofing material 90 over the other regulating valve sheet 32a.

FIG. 10B is a simple side view of the regulating valve portion, with the moisture penetrating waterproofing material 90a positioned so as to surround the outlet of the regulating valve over the regulating valve sheet 32a, 32b. In this configuration, a small portion of the moisture penetrating waterproofing material 90a is positioned to surround the outlet formed by the edges of the regulating valve sheets 32a and 32b to prevent the flow of liquids such as water. Rather than being located over the entire surface of the regulating valve sheet, the moisture penetrating waterproofing material 90a is located at the edge of the regulating valve sheet 32a, 32b. Thus, the amount of moisture-permeable waterproof material 90a required to form the regulating valve is reduced.

10C shows another example of a regulating valve, in which a moisture penetrating waterproofing material 90a is located at multiple locations on the regulating valve sheet. In particular, two portions of the moisture penetrating waterproof material 90a are positioned above the regulating valve sheet 32b. In this example, two pieces of moisture penetrating waterproofing material 90b are located close to the inlet and outlet of the control valve, respectively, to effectively prevent the flow of liquid.

10D shows another example, in which moisture-permeable waterproof material 90c is adhered to each regulating valve sheet 32a, 32b. In principle, the configuration shown in Fig. 10D is similar to that of Fig. 10B, wherein a moisture penetrating waterproofing material is located between the openings formed between the regulating valve sheets. However, the moisture penetrating waterproofing material is provided on the inner surface of the regulating valve films 32a and 32b.

In any of the examples shown in FIGS. 10A-10D, the function of the regulating valve is the same as that described with reference to FIGS. 7A, 7B and 8. Thus, the control valve can effectively perform the operation of preventing the flow of air in the reverse direction in the vacuum seal container to keep the inside of the vacuum seal container in a vacuum state. At the same time, the regulating valve can effectively perform the operation of preventing the flow of the forward liquid in order to maintain a liquid such as meat juice in the vacuum sealed container.

Although the regulating valves in the examples described and shown with reference to the drawings above are made of pure plastic films, the regulating valve may have a straw shaped (cylindrical) opening protruding from the regulating valve as shown in the figure of FIG. 11. The opening 65 is a circular opening that can allow a vacuum device to be inserted to suck air inside the vacuum sealed container. The opening 65 may also suck air into the mouth of the user.

Although not shown, a lid covering the opening 65 may additionally be provided. Although the opening 65 in FIG. 11 has a circular shape, other shapes such as triangular or square may be used. The size of the opening can be varied to fit the container of the vacuum sealed container.

The bag portion 39 as shown in FIG. 6 may use a specially constructed film to prevent liquid from easily flowing over its surface. Thus, when the vacuum sealed container is pressed or compressed to withdraw air in the container, the water in the vacuum sealed container 80 is prevented from moving toward the control valve 38. 12A and 12B are side views showing examples of sheets that may be used for the bag portion of a vacuum sealed container according to the present invention.

12A is a side view of a bag portion of the vacuum sealed container, wherein the sheet 32d has protrusions and irregularities to prevent a smooth flow of liquid in the vacuum sealed container. In this example, only the sheet 32d has protrusions on the inner surface, and the sheet 32c opposite the sheet 32d is a soft sheet. Protuberances are formed to create a labyrinth of liquid on the surface of the backsheet.

12B shows the side of the bag portion of the vacuum sealed container, showing that the two sheets 32f and 32e have protrusions and irregularities. The shapes of the projections can vary as long as they can effectively prevent the smooth flow of liquid in the vacuum sealed container. Protuberances are formed to create a labyrinth of liquid on the surface of the backsheet.

In the examples of FIGS. 12A and 12B, when the sheets 32f and 32e are transparent, they are symbolic such as an aesthetic drawing, plan view work or writing inside the bag portion that prevents a smooth flow of liquid as well as achieving an aesthetic effect. It is possible to provide an expression. For example, company logos may be provided on top of the bag portion that functions as a protrusion while preventing a smooth flow of liquid and providing such as the intended information or logo. Alternatively, the sheet may be made of a coarse material to prevent the smooth flow of liquid.

The resealable zipper used in the vacuum sealed container according to the present invention may utilize a sliding zipper. The sliding zipper may be similar in structure to the resealable zipper mentioned above, and has a sliding handle that slides along the resealed zipper that opens and closes the vacuum sealed container. These examples are shown in the perspective view of FIGS. 13A and 13B.

13A shows a sliding zipper, in which a layer of resealing zipper 188 is used. Sliding the sliding handle 158 in one direction along the resealing zipper 188 closes the vacuum seal container. Sliding the sliding handle 158 in the other direction along the resealing zipper 188 opens the vacuum seal container. 13B shows a sliding zipper in which two layers of resealed zippers 188a, 188b are formed next to each other. Sliding handle 158b may open and close resealable zippers 188a, 188b simultaneously. Sliding zippers are generally well known and will not be described in detail.

The control valve according to the invention described above has an improved space for preventing the flow of liquid and for maintaining the vacuum of the container. However, it would be desirable to provide an auxiliary sealing effect to ensure that no liquid leaks from the vacuum sealed food container. 14 shows an example of a vacuum sealed container to achieve an auxiliary outer resealing zipper 88k with an inner resealing zipper 88j. The configuration of the resealable zippers 88k and 88j may be the same as the resealable zippers mentioned above.

In this embodiment, the regulating valve 38h is similar to the configuration mentioned above and is located in combination with the internal resealing zipper 88j. The outer resealable zipper 88k is located near the edge of the opening of the vacuum sealed container. The inner resealable zippers 88j and the outer resealable zippers 88k are independent of each other in operation.

When the object is placed in the vacuum sealed container 80J, the two inner resealing zippers 88j and the outer resealing zippers 88k are opened. After the inner resealable zipper 88j is closed, the internal air is discharged from the vacuum sealed container 80J through the regulating valve 38h to create a vacuum state. The outer resealable zipper 88k is then closed. Even if it leaks from the liquid control valve 38h, the liquid does not leak from the vacuum seal container 80J because the outer resealing zipper 88k is tightly sealed.

As mentioned above, according to the present invention, the structure of the vacuum sealed container has a resealing zipper and a control valve so that air or other gas can be easily removed from the vacuum sealed container. The vacuum sealed container may allow forward air flow while preventing reverse air flow to maintain the vacuum of the vacuum sealed container. Thus, it can be stored for a long time without being exposed to the atmosphere in a vacuum sealed container that is an object such as meat. Since the liquid inside is prevented from flowing to the foil by the control valve, the vacuum sealed container can hold a liquid such as meat gravy in the vacuum sealed container so that the taste and freshness of the meat do not change for a long time.

Although the present invention refers to the preferred embodiments herein, those skilled in the art will not appreciate that various changes and various changes are not separated from the spirit and scope of the present invention. Such modifications and variations are considered within the same identity and modification.

9: sealing bag 11: zipper
12: groove 13: protrusion
31: plastic film 33: inside
38: control valve 39: bag portion
41: sealing portion 42: reinforced sealing portion
48: air passage 65: opening
80: container 88, 188: resealing zipper
90: moisture permeable waterproof layer 91: object
158: sliding knob

Claims (16)

A first outer film and a second outer film forming a vacuum sealed container;
A control valve film sandwiched between the first outer film and the second outer film when the control valve is positioned in an opening of the vacuum seal container that abuts or overlaps with the zipper to close the vacuum seal container;
An air path formed between one of the first outer film and the second outer film and a control valve film, wherein the sealing portions provided to make the air path make resistance to smooth flow of air;
A moisture permeable waterproof material is provided that has the ability to allow air and moisture to pass through, but prevents the passage of liquid, wherein the moisture permeable waterproof material is formed in a portion of the air path to prevent the ingress of liquid through the air path. Control valves used in vacuum sealed containers. 2. The control valve of claim 1, wherein the sealing portion includes a narrow V-shaped downward portion that gradually narrows the air path towards the direction of flow of air. 2. The control valve of claim 1 wherein the moisture permeable waterproofing material is not a woven fibrous material. A first outer film and a second outer film forming a vacuum sealed container;
A pair of regulating valve films sandwiched between the first outer film and the second outer film when the regulating valve is positioned in an opening of the vacuum sealing container that abuts or overlaps with the zipper to close the vacuum sealing container;
An air path formed between the control valve films, wherein the sealing portions provided to make the air path make resistance to smooth flow of air;
A moisture permeable waterproof material is provided that has the ability to allow air and moisture to pass through, but prevents the passage of liquid, wherein the moisture permeable waterproof material is formed in a portion of the air path to prevent the ingress of liquid through the air path. Control valves used in vacuum sealed containers. 5. The control valve of claim 4, wherein the sealing portion comprises a narrow V-shaped narrow downward portion that gradually narrows the air path towards the direction of flow of air. A bag portion composed of a first outer film and a second outer film to receive an object therein;
A resealable zipper formed at one edge of the bag portion having an inlet to insert an object into the vacuum seal container, the resealable zipper opening or closing the inlet of the bag portion;
A control valve film sandwiched between the first outer film and the second outer film, and an air path formed between any one of the first outer film and the second outer film and the control valve film provided to make the air path. Sealing parts are provided with a moisture permeable waterproof material that is resistant to the smooth flow of air and that has the ability to allow the passage of air and moisture but prevent the passage of liquid, the moisture permeable waterproof material being capable of introducing liquid through the air path. A vacuum sealed container comprising a control valve formed in a portion of the air path to prevent the. 7. The vacuum sealed container of claim 6, wherein at least one portion of the inner surface of the bag portion has protrusions or irregularities to prevent smooth flow of liquid. 7. The method of claim 6, wherein at least one portion of the inner surface of the bag portion has protrusions or irregularities to prevent the smooth flow of liquid and the protrusions or irregularities symbolically represent logos and aesthetic effects. Vacuum sealed container characterized in that. 7. The vacuum sealed container of claim 6, wherein the first outer film is one film of a bag portion and the second outer film is another portion of the film of the bag portion. 7. The vacuum sealed container of claim 6, wherein the first outer film is one film of a bag portion and the second outer film is a portion of a resealable zipper. 7. The vacuum sealed container according to claim 6, wherein the regulating valve has a straw shaped opening protruding from the end of the regulating valve. 12. The vacuum sealed container of claim 11, wherein the regulating valve has a lid adapted to a protruding stole-shaped opening. 7. The vacuum sealed container of claim 6, wherein said resealed zipper is a sliding zipper sealed with a sliding handle. 7. The vacuum sealed container of claim 6, wherein the resealable zipper is a sliding zipper sealed with a sliding handle for opening or closing the bag portion of the vacuum sealed container. 7. The vacuum sealed container of claim 6, wherein the plurality of resealable zippers are parallel to each other and one sliding handle slides along the plurality of resealed zippers that open or close the bag portion of the vacuum sealed container. 7. The vacuum sealed container of claim 6, further comprising an outer resealing zipper located further outward of the resealing zipper, wherein the openings of the control valve are positioned between the two resealing zippers.

Images