WO2007029292A1 - 脱気弁及びこの脱気弁を備えた圧縮袋 - Google Patents
脱気弁及びこの脱気弁を備えた圧縮袋 Download PDFInfo
- Publication number
- WO2007029292A1 WO2007029292A1 PCT/JP2005/016089 JP2005016089W WO2007029292A1 WO 2007029292 A1 WO2007029292 A1 WO 2007029292A1 JP 2005016089 W JP2005016089 W JP 2005016089W WO 2007029292 A1 WO2007029292 A1 WO 2007029292A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- deaeration
- air passage
- seal
- films
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2205/00—Venting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
Definitions
- the present invention uses two valve films made of synthetic resin, a deaeration valve capable of passing an air flow in one direction, and a compression bag provided with the deaeration valve It is related to.
- Patent Document 1 Japanese Utility Model 6-697
- This compression bag is for taking in and out the stored items, and has an opening that can be closed in an airtight state by a chuck or the like.
- Many compression bags are provided with a deaeration valve having an air passage for discharging the air inside the bag.
- this deaeration valve there is a configuration in which two valve films made of synthetic resin are overlapped. This is because a rectangular film is used as the valve film, and it is possible to vent between the valve films from the inlet to the outlet by the seal part formed by attaching the long side edge. In addition, an air passage that can be closed is formed by close contact between the valve films.
- the device described in Patent Document 1 proposes a bent air passage.
- the backflow of the deaeration valve is less likely to occur, but the valve is still blocked by the seal.
- the film was fixed, and the tension of the valve film became partially unstable.
- the present invention provides a deaeration valve capable of stabilizing the tension of the valve film and effectively preventing the backflow of air while having a simple structure, and It is an object of the present invention to provide a compression bag provided with this deaeration valve.
- the invention according to claim 1 of the present application is made of synthetic resin, and the two valve films 11 and 12 are superposed and a part of them is adhered.
- a deaeration valve 1 in which an air passage 2 that can be ventilated between the valve films from the inlet 2a to the outlet 2b and that can be closed when the valve films 11 and 12 are in close contact with each other is formed.
- the air passage 2 is defined by two seal portions 21 and 22 formed by adhering the valve films 11 and 12, and the inlet 2a of the air passage 2 is
- the outlet 2b is defined by a line connecting between the upstream ends 21a, 221a of each seal part 21, 22, and the outlet 2b is defined by a line connecting between the downstream ends 21b, 223b of each seal part 21, 22.
- the downstream end portions 21b, 223b and the valve The downstream ends l ib and 12b of the rums 11 and 12 are separated from each other and have a passage extension 31 on the downstream side of the air passage 2.
- the passage extension 31 is an outlet of the air passage 2.
- the degassing valve is characterized in that the valve films 11 and 12 are not bonded to each other at the extension lines 21c and 223c.
- the invention according to claim 2 of the present application has the non-seal portion 3 composed of the passage extension portion 31 and the free portion 32, and the free portion 32 includes the passage extension portion 31 or The portion adjacent to the air passage 2 and the passage extension 31, and the passage extension 31 and the free portion 32 are bounded by the extension lines 21c and 223c that define the passage extension 31 described above.
- the invention according to claim 3 of the present application provides the one-side seal portion 21 and the other-side seal portion.
- the deaeration valve according to claim 1 or 2 wherein a dimension L2b between each end portion at the outlet is smaller than a dimension L2a between each end portion at the inlet of the air passage 2 with respect to 22. provide.
- the one-side seal portion 21 is linear
- the other-side seal portion 22 includes the introduction portion 221, the intermediate portion 222, and the lead-out portion 223.
- the inlet portion 2a of the air passage 2 is defined by the upstream end portion 221a of the introduction portion 221 and the upstream end portion 21a of the one-side seal portion 21.
- the downstream end portion 223b of the first seal portion 21 and the downstream end portion 21b of the one-side seal portion 21 constitute the outlet 2b of the air passage 2.
- the intermediate portion 222 includes the introduction portion 221 and the outlet portion 223.
- the other-side seal 22 has an intermediate portion 222 that is more than the introduction portion 221 and an outlet portion 223 that is more than the intermediate portion 222 with respect to the one-side seal portion 21.
- the downstream end portion 223b of the other-side seal portion 22 is more than the downstream end portion 21b of the one-side seal portion 21.
- it has a free part 32 as described above, and this free part 32 is formed adjacent to the air passage 2 and the passage extension 31.
- a deaeration valve according to claim 3 is provided.
- the invention according to claim 5 of the present application is directed to the upstream side edges 11a, 12a and the other side valve of the one side valve films 11, 12 which are overlapped at least in the air passage 2.
- an inert liquid 4 such as silicon oil is arranged on at least a part of the inner surfaces of the valve films 11 and 12 in the air passage 2.
- a deaeration valve according to any one of claims 1 to 5 is provided.
- the invention described in claim 7 of the present application is made of a synthetic resin in which at least two bag-side films 51, 52 are superposed, and a part of them is adhered.
- the storage unit 62 having the opening 61 that can store the product and the deaeration port 63 that can deaerate the air existing in the storage unit 62 other than the opening 61 are provided.
- Each of the bag-side films 51 and 52 is a rectangular shape in a plan view, and the opening 61 is provided above the compression bag 5 and can be sealed by the closing means 61a.
- the above The deaeration port 63 is provided below the compression bag 5, and the deaeration valve 1 according to claim 1 is provided between the storage unit 62 and the deaeration port 63.
- valve film 11, 12 a long one is used as the valve film 11, 12, and the deaeration valve 1 is disposed in the longitudinal direction of the valve film 11, 12.
- the storage unit 62 includes an article storage region 62a and an air introduction region 62b, and the boundary between the regions 62a and 62b is as follows.
- the valve protection seal 67 is formed.
- the valve protection seal 67 is formed by adhering the bag side films 51 and 52, and includes the article storage area 62a and the air introduction area 62b.
- the compression bag provided with the deaeration valve according to claim 7 or 8, characterized in that air can pass between the two.
- FIG. 1 (A) is a plan view showing a deaeration valve according to an embodiment of the present invention, and (B) is a schematic view of (A) as viewed from the end of A-A, and the air passage is opened. (C) is a schematic view of the A—A end view of (A) when the air passage is closed.
- FIG. 2 shows a deaeration valve according to an embodiment of the present invention during deaeration, wherein (A) is a plan view of the main part, and (B) is a schematic view of BB end view of (A). (C) is a schematic view of CC end view of (A), and (D) is a schematic view of DD end view of (A).
- FIG. 3 shows a deaeration valve according to an example of the implementation of the present invention at the moment when deaeration ends
- (A) is a plan view of the main part
- (B) is a schematic view of the EE end view of (A). The figure shows the state attached to the compression bag Is.
- FIG. 4 shows a deaeration valve according to an embodiment of the present invention after completion of deaeration
- (A) is a plan view of the main part
- (B) is a schematic view of the FF end view of (A).
- (C) is a schematic view of the GG end view of (A)
- (D) is a schematic view of the HT end view of (A).
- FIG. 5 (A) is a plan view showing a deaeration valve according to another example of the implementation of the present invention, and (B) is a schematic diagram of (A) as viewed from the end II and when the air passage is opened. , (C) is a schematic diagram of (A) viewed from the end II, and is when the air passage is closed.
- FIG. 6 is a plan view showing a compression bag fitted with a deaeration valve according to an embodiment of the present invention.
- FIG. 7] (A) to (H) are schematic views in plan view showing another embodiment of the deaeration valve according to the present invention.
- FIG. 1 is a plan view showing the deaeration valve of this example
- FIG. 6 is a plan view showing a compression bag fitted with the deaeration valve of this example.
- the expressions “upstream” and “downstream” are based on the direction of the air flow when the air passage is opened as shown in FIG. 1 (B). This is the case of coordination as shown in A) and Fig. 6.
- the front and back representations are such that the upper side in the drawing is the front and the lower side is the back.
- the deaeration valve 1 of this example is opened to the air flow fl in one direction from the upper side to the lower side in the figure (see Fig. 1 (B)), and the lower side in the figure.
- the air flow f 2 in the other direction from the top to the bottom is closed (see Fig. 1 (C)).
- This deaeration valve 1 is mainly attached to a compression bag 5 as shown in FIG. 6 and is used for degassing the air present in the storage portion 62 of the compression bag 5.
- the use of the deaeration valve 1 is not limited to the compression bag as in this example.
- the deaeration valve 1 may be applied to a bag that is filled with a gas such as air.
- the deaeration valve 1 can also be used as a check valve for all fluids such as gases other than air and liquids such as water.
- the deaeration valve 1 of this example is made of a synthetic resin, and two valve films 11 and 12 are overlapped. Of these valve films 11, 12, at least the inside of the air passage 2 It is desirable that the surface to be the surface has weak adhesiveness so that the valve films 11 and 12 can easily adhere to each other. Further, the valve films 11 and 12 used in this example may have a rectangular shape as shown in FIG.
- valve films 11 and 12 Since a part of these valve films 11 and 12 are bonded by means such as heat sealing, the valve films 11 and 12 can be ventilated from the inlet 2a to the outlet 2b.
- a closeable air passage 2 is formed by the close contact of 11 and 12.
- the air passage 2 is defined by two seal portions 21 and 22 formed by adhering the valve films 11 and 12 to each other.
- the air passage 2 is composed of two valve films 11 and 12. 1S An intermediate film between the two valve films 11 and 12, as shown in FIG.
- the base end side is adhered to the valve film 12 on the back side, and the tip end side is movable in the air passage 2 and is shown in FIG. 5 (C).
- the valve film 11 is positioned so as to be in close contact with the valve film 11 on the front side, and in addition to the contact between the valve films 11 and 12, the intermediate film 13 and the valve film 11 on the front side
- the air passage 2 may be closed by close contact.
- the force of the downstream side edge 13b of the intermediate film 13 positioned upstream of the downstream side edges l ib and 12b of the valve films 11 and 12 is the position of each side edge l ib, 12b and 13b. All of these may be matched.
- the opposite surfaces of the back side valve film 12 and the intermediate film 13 that are separated from each other except the base end side when the air passage 2 is closed have weak adhesiveness.
- the seal portions 21 and 22 are, as shown in Fig. 1, linear one side extending in the vertical direction in the figure along the left end of the valve films 11 and 12 in the figure.
- the second seal portion 22 is formed by bending a force that extends in the vertical direction in the drawing at a position closer to the right than the one-side seal portion 21.
- the other-side seal 22 in this example also has three partial forces of an introduction part 221, an intermediate part 222, and a lead-out part 223 from above in the figure.
- the introduction part 221 is arranged closer to the inlet side of the air passage 2, and the outlet part 223 is arranged closer to the outlet side of the air passage 2.
- the upstream end 221a of the introduction part 221 and the upstream end 21a of the one-side seal part 21 constitute an inlet 2a of the air passage.
- the entrance 2a is defined by a line segment connecting the end portions 221a and 21a.
- the downstream end portion 223b of the outlet portion 223 and the downstream end portion 21b of the one-side seal portion 21 constitute an outlet 2b of the air passage.
- the exit 2b is defined by a line segment connecting the end portions 223b and 21b.
- the intermediate part 22 2 connects the introduction part 221 and the lead-out part 223.
- an intermediate part 222 is formed closer to the introduction part 221, and a guide part 223 is formed closer to the one side seal part 21 than the intermediate part 222. Accordingly, the dimension L2b between the end portions on the outlet side of the one side seal portion 21 and the other side seal portion 22 is smaller than the dimension L2a between the end portions on the inlet side of the air passage 2. In other words, the width of the air passage 2 in this example is narrowed as it moves toward the downstream side.
- all of the introduction part 221, the intermediate part 222, and the lead-out part 223 are formed in a straight line.
- the lead-in part 221 and the lead-out part 223 are one-side seal parts 21. It is formed in parallel.
- each of the seal portions 21 and 22 is not limited to that of the present example, and various modifications can be made.
- the seal portions 21 and 22 are both linear, and as shown in FIGS. 7A, 7B, and 7H, the seal portions 21 and 22 are arranged in parallel to form an air passage.
- the air passage 2 may be restricted by not restricting 2 or by forming the other-side seal portion 22 in a straight line extending obliquely as shown in FIG. 7 (E).
- the other-side seal portion 22 may have a continuous curved shape.
- the one-side seal portion 21 is linear, and the other-side seal portion 22 is bent.
- FIG. 7 the seal portion 21 and 22 is bent.
- a non-seal portion 3 is formed in addition to the air passage 2 as shown in FIG. 1 (A).
- the non-seal portion 3 includes a passage extension portion 31 and a free portion 32.
- the passage extension 31 is a portion that exists downstream of the outlet 2b of the air passage 2, and is a portion through which the air that has passed through the air passage 2 passes.
- the free portion 32 is closed between the valve films 11 and 12 by an integral seal 64 formed when attached to the compression bag 5 as shown in FIG. It is said that air does not pass through.
- FIGS. 2 (A) and 2 (D) it is possible that a part of the airflow flowing from the air passage 2 to the passage extension portion 31 passes through the free portion 32.
- the downstream end portion 223b of the outlet portion 223 of the other side seal portion 22 is more upstream (upward in the drawing) than the downstream end portion 21b of the one side seal portion 21. It is formed. Therefore, the passage extension 31 in the deaeration valve 1 of this example is the outlet 2b, that is, the downstream end 21a of the one-side seal portion 21 and the downstream end 223b of the lead-out portion 223 of the other-side seal portion 22. , A downstream edge of the valve film 11, 12, l ib, 12b, a lead-out portion 2 23 of the other side seal 22, a downstream extension line 223c (illustrated by a broken line), and a triangle defined by three line segments It is an area of shape. When the air passage 2 shown in FIG. 1 (C) is closed, the valve films 11 and 12 in the passage extension 31 can be brought into close contact with each other in the same manner as the valve films 11 and 12 in the air passage 2. .
- the one-side seal portion 21 is formed closer to the lower side in the drawing than the other-side seal portion 22, so that the one-side seal 21 is formed on the valve films 11 and 12. It plays a role like a bone, and the valve films 11 and 12 are curled in the passage extension 31, so that the valve films 11 and 12 do not interfere with the passage extension 31. ing.
- the downstream end 21a of the one-side seal 21 and the downstream ends l ib and 12b of the valve films 11 and 12 are separated from each other. It is also possible to make a state in which the seal portions 21 and 22 and the downstream side edges l ib and 12b of the valve films 11 and 12 are not in contact with each other.
- the free portion 32 is a portion adjacent to the air passage 2 and the passage extension portion 21, respectively. That is, as shown in FIG. 1, the non-sealed portion 3 is an extension of the downstream side of the lead-out portion 223 of the other-side seal 22. On the basis of the long line 223c, the left side of the figure is the passage extension 31 and the right side of the figure is the free part 32.
- the passage extension 31 and the free portion 32 are continuous, and the strain of the valve films 11 and 12 in the passage extension 31 can be absorbed by the free portion 32. Therefore, at least in the passage extension 31, the tension of the valve film can be stabilized, and the valve films 11, 12 can be reliably brought into close contact with each other without causing slack or wrinkles. Since the region where the valve films 11 and 12 are in close contact with each other is present on the downstream side of the air passage 2 in this way, it is possible to effectively prevent the air from flowing backward into the air passage 2.
- valve film 11 and 12 in the free part 32 It is formed between the upstream side edges 11a, 12a and the downstream end 223b of the lead-out part 223 of the other side seal 22, and the sealing force is also from the downstream side edges ib, 12b of the valve films 11, 12 It is necessary to have an interval between them.
- the non-sealed portion 3 may be such that only the passage extension portion 31 is also forceful, as shown in FIG. 7 (H).
- the passage extension 31 is an outlet 2b, that is, a line connecting the downstream end 21a of the one-side seal portion 21 and the downstream end 223b of the other-side seal portion 22, valve film 11, 12
- the distortion of the valve films 11 and 12 in the passage extension 31 can be eliminated by the displacement of the valve films 11 and 12 in the passage extension 31 in the horizontal direction in the figure.
- the film tension can be stabilized, and the valve films 11 and 12 can be brought into close contact with each other without causing slack or wrinkles.
- the width of the air passage 2 is narrowed as it is directed toward the downstream side, so that the passage extension 31 shown in FIG.
- the horizontal dimension of the free part 32 is larger.
- the illustrated lateral dimension S of the passage extension 31 is 10 mm
- the illustrated lateral dimension of the free part 32 is 70 mm. in this way Since the free portion 32 is formed larger than the passage extension portion 31, the above-described strain absorption in the free portion 32 is more effectively performed.
- valve films 11 and 12 when the air passage 2 is closed will be described in more detail.
- FIG. 6 the state where the deaeration valve 1 is attached to the compression bag 5 described later will be described. Note that the cross-sectional views in FIGS. 2 to 4 exaggerate the vertical direction of the drawing for the sake of explanation.
- FIG. 2 (C) shows a CC end view in the width direction of the air passage 2 of the deaeration valve 1 at this time, and the width direction of the passage extension portion 31 and the free portion 32 of the same deaeration valve 1 is the same.
- Figure 2 (D) shows the D—D end view.
- each figure in FIG. 3 shows a state at the moment when the above-mentioned deaeration ends and the air flow fl does not pass through the air passage 2.
- the inside of the storage portion 62 of the compression bag 5 is in a negative pressure state due to the air being discharged. Therefore, as shown in FIG. 3B, which is an end view of the EE, the valve film 11 and 12 in the air passage 2 is subjected to a force X attracted to the storage section 62 side, and the valve films 11 and 12 are in contact with each other. Try to stick.
- valve films 11 and 12 are in close contact with each other in a very short time, the air hardly flows back through the air passage 2 during the movement of the valve films 11 and 12.
- FIG. 4 shows each of the cases where the valve films 11 and 12 are in close contact with each other and the air passage 2 is closed.
- FIG. 4 (B) as seen from the end face of the FF, the force air passage 2 that is normally in close contact with each other and completely closed is sometimes used.
- FIG. 4C which is a G-G end view in the width direction in the air passage 2 of the deaeration valve 1
- the valve films 11, 12 are loosened and the gap Y between the valve films 11, 12 is shown. May occur. This is because they are fixed by the one-side seal portion 21 and the other-side seal portion 22 and the displacement between the valve films 11 and 12 is limited.
- valve films 11 and 12 can move Z. Therefore, the gap between the valve films 11 and 12 can be absorbed by the free part 32, and the gap Y as shown in FIG. As a result, the valve films 11 and 12 can be securely adhered to each other.
- valve film is caused by the force X attracted to the storage portion 62 side as described above. 11 and 12 are in close contact with each other, but due to the above force X, the intermediate film 13 and the valve film 11 on the front side are in close contact with each other as shown in FIG. 5 (C) shows valve films 11 and 12 apart for ease of understanding).
- a force that may generate a bag-like space 2c between each of the valve films 11 and 12 and the intermediate film 13 will flow back from the outlet 2b of the air passage 2 to the inlet 2a.
- the airflow f2 to be stagnated does not stagnate in the bag space 2c and pass through the air passage 2.
- the size of the inlet 2a of the air passage 2 is larger, which is desirable because air can be smoothly introduced into the air passage 2.
- the size of the outlet 2b of the air passage 2 is small because it is difficult for the valve films 11 and 12 to be distorted.
- the dimension of the air passage 2 from the inlet 2a to the outlet 2b is preferably large so that the valve films 11 and 12 are securely adhered to each other.
- the dimensions of each part of valve 1 are determined.
- the lateral dimension between the introduction part 221 and the one-side seal part 21 in the vicinity of the inlet 2a of the air passage 2 shown in FIG. 60mm is desirable. In this example, it is 30 mm.
- the lateral dimension between the guiding part 223 and the one-side seal part 21 in the vicinity of the outlet 2b of the air passage 2 is preferably 5 mm to 30 mm. In this example, it is 10 mm.
- the vertical dimension of the deaeration valve 1 is desirably 3 Omm to 100 mm.
- the upstream edge of the back valve film 12 The dimension of a and downstream edge 12b is 45mm.
- the optimum air is selected according to the size of the compression bag 5 to which the deaeration valve 1 is attached. It is possible to easily design a deaeration valve 1 that allows an amount to pass through the air passage 2.
- the dimension of the deaeration valve 1 in the illustrated lateral direction is 80 mm, and the free part 32 is sufficiently larger than the passage extension part 31.
- the right ends of the valve films 11 and 12 are aligned with the introduction portion 221 of the other-side seal portion 22, and the lead-out portion 223 of the other-side seal portion 22 and the valve
- the free part 32 may be formed only between the right end of the films 11 and 12 in the drawing.
- the upstream side edge 1 la of the superposed front side valve film 11 and the upstream side edge 12a of the back side valve film 12 are: They are coordinated in the upstream and downstream sides, respectively.
- the upstream side edge 11a of the front side valve film 11 is arranged on the downstream side.
- the above deviation is preferably in the range of lmm to 10mm, but 3mn! It is more desirable to set it to ⁇ 5mm. This deviation is not essential in the present invention, but it is desirable to provide it. In addition, this shift may be referred to as a “step”.
- the vertical dimensions of the valve films 11 and 12 are constant both in the portion where the air passage 2 is formed and in other portions. However, it is sufficient if the above-described deviation exists at least in the portion where the air passage 2 is formed.
- an inert liquid 4 such as silicon oil is coordinated on at least a part of the inner surfaces of the valve films 11 and 12 in this example.
- This liquid 4 has the effect of further strengthening the close contact between the valve films 11 and 12 when the air passage 2 is closed due to its viscosity. To do. Note that if the viscosity of the liquid 4 is too high, it is difficult to open the air passage 2, so a low viscosity is desirable. However, even if the viscosity is low, a viscosity that does not leak from the air passage 2 is required.
- the compression bag 5 including the deaeration valve 1 is formed by superposing at least two bag-side films 51 and 52 made of synthetic resin and bonding a part of them.
- This compression bag 5 is as shown in FIG. 6, and is capable of storing articles such as clothing, and includes a storage portion 62 having an opening 61 and a storage portion 62 other than the opening 61. And a deaeration port 63 for deaerating the existing air.
- an opening 61 is provided in the upper part of the figure, and can be sealed by a closing means such as a chuck 61a that is closed by fitting the concave and convex ridges.
- the deaeration port 63 is provided below the compression bag 5 in the figure. However, as will be described later, the opening 61 and the deaeration port 63 can be provided at free positions as long as the deaeration valve 1 is not hindered. The quantity of the deaeration ports 63 can also be changed variously at the three locations in the compression bag 5 of this example.
- Each of the bag-side films 51 and 52 in this example is rectangular in plan view, but can be implemented in various forms such as a circle and a polygon.
- the deaeration valve 1 is mounted between the storage part 62 and the deaeration port 63 with the inlet side of the air passage 2 facing upward and the outlet side facing downward.
- the downward force of the compression bag 5 is also set within the range of 60 mm.
- the deaeration valve 1 is attached by forming an integral seal portion 64 that is force-bonded to the valve films 11 and 12 and the bag side films 51 and 52. Due to the formation of the integral seal portion 64, the air flow is prevented from passing between the storage portion 62 and the deaeration port 63 except for the air passage 2.
- valve films 11 and 12 a long one is used as the valve films 11 and 12, and the deaeration valve 1 is disposed in the longitudinal direction of the valve film, as shown in FIG. Are arranged in parallel so that they are adjacent to each other.
- the compression bag 2 can be manufactured one after another by combining with the bag-side films 51 and 52, which are also long, so that the efficiency in manufacturing is very good.
- the number of air passages 2 per compression bag 5 increases as the size of the compression bag 5, particularly the width dimension, increases. Since the amount can be increased easily, deaeration does not become difficult even in the case of a large compression bag 5.
- the integrated seal portion 64 is formed by heat sealing. Therefore, at least a part of the inner surfaces of the valve films 11 and 12 in the air passage 2 of the deaeration valve 1 that coincide with the integral seal portion, specifically, near the inlet 2a of the air passage 2 As shown in Fig. 1 (B), the heat-resistant paint 7 is coordinated, and due to the effect of heat during heat sealing, the valve films 11 and 12 are welded, and the air passage 2 is blocked. It is made so that it will not be.
- the term “heat resistance” refers to a property that does not affect the surroundings of the valve films 11, 12, etc. due to denaturation such as melting caused by heat of the heat seal.
- the valve film 11 or the intermediate film 13 facing the space through which the air flow fl passes is formed when opened.
- the heat-resistant paint 7 is coordinated on the surface, specifically, the surface near the inlet 2a of the air passage 2.
- the storage section 62 is a product storage region 62a that is a region in which articles are actually stored, and a region between the product storage region 62a and the deaeration valve 1.
- a certain air introduction region 62b is used as a force, and a boundary between the regions 62a and 62b and a valve protection seal 67 are formed.
- This valve protection seal 67 is formed by intermittently bonding the bag side films 51 and 52. The interval at which the valve protection seal 67 is formed is not limited as long as air can pass between the regions 62a and 62b and does not hinder the introduction of air into the air passage 2.
- each valve protection seal 67 in the horizontal direction in the figure is 10 mm, and the space dimension between the valve protection seals 67 is 25 mm.
- the form of the valve protection seal 67 can be changed in various ways. For example, it is desirable that the resistance when the air passes between the regions 62a and 62b is smaller, such as a circle.
- valve protection seal 67 By forming the valve protection seal 67 in this way, it is possible to prevent the clothes from being sucked into the air passage 2 on the article force airflow fl such as clothes stored in the article storage area 62a. In addition, even if the space between the bag side films 51 and 52 swells due to the articles being packed in the article storage area 62a, it is a part of the bag side films 51 and 52, and the air introduction area The downstream films 51a and 52a coordinated to 62b can be maintained in a state where they do not deform without being swollen by the films. Therefore, the deaeration valve 1 can be maintained in a flat state without being affected by the stored articles, and the air passage 2 can be reliably opened and closed.
- the formation of the valve protection seal 67 is not essential and may be omitted.
- valve films 11 and 12 in this example a long film wound in a roll shape is used. Specifically, one with a width of 45 mm and a length of 1000 m is used.
- the heat-resistant paint 7 is gravure printed on a part of the surface on the side facing the valve film 11 on the front side, specifically in the vicinity of the inlet 2a of the air passage 2. It is applied by a technique or the like.
- the valve film 11 in the table about 5 mm is cut in the width dimension. This dimensional difference is the deviation between the end sides 11a and 12a described above.
- the silicone film 4 is applied to the surface of one of the valve films 11 and 12 where the air passage 2 is formed.
- This application may be performed by brush or the like, or by spraying.
- the two valve films 11, 12 are overlapped on the front and back and heat-sealed, so that as shown in Fig. 1 (A), the one-side seal portion 21 and the other-side seal portion 22 Is formed.
- the one-side seal portion 21 is formed over the entire width of the valve films 11 and 12.
- the end portion 223b which is the downstream side of the other side seal portion 22 does not coincide with the end sides l ib and 12b which are the downstream side of the valve films 11 and 12, and a gap is provided. This gap becomes an extension line 223c of the seal portion 22 that is a boundary between the passage extension portion 31 and the free portion 32 described above.
- the deaeration valve 1 formed as shown in FIG. 1 (A) is sandwiched between the bag-side films 51 and 52, and the integral seal portion 64 is formed to be integrated.
- side seal portions 65 are formed on the peripheral edge other than the portion where the opening 61 and the vent hole 63 are formed.
- a chuck 61a as a closing means is attached to the opening 61.
- a slider 8 which is a member for assisting the opening and closing of the chuck 6 la is attached. As a result, the compression bag 5 is completed.
- the heat seal does not work at the portion overlapping the heat-resistant paint 7.
- the side seal portion 65 is not formed, and there is a case where air leaks.
- an inner seal portion 66 is further formed on the inner side of the side seal portion 65 formed on the left and right ends of the compression bag 5 in the figure.
- the deaeration valve 1 is always adhered to the bag side films 51 and 52 by the side seal part 65 or the inner seal part 66 at a position other than where the heat resistant paint 7 such as the free part 32 is coordinated. It will be.
- the deaeration valve 1 is not fixed to the bag-side films 51 and 52 except for the integral seal portion 64, the side seal portion 65, and the inner seal portion 66. Therefore, as explained above, it is as much as possible to prevent the strain of the valve films 11 and 12 in the passage extension part 31 from being absorbed in the free part 32! /! RU
- the present invention has the following excellent effects.
- the invention according to claim 1 of the present application can eliminate the distortion of the valve films 11 and 12 in the passage extension 31, at least the passage extension 31 stabilizes the tension of the valve film,
- the valve films 11 and 12 can be securely adhered to each other without causing slack and wrinkles.
- the region force in which the valve films 11 and 12 are in close contact with each other is present adjacent to the outlet 2b of the air passage 2. Therefore, the air can be effectively prevented from flowing back into the air passage 2. It is. Therefore, it has been possible to provide a deaeration valve that can effectively prevent backflow of air while having a simple structure.
- the invention according to claim 2 includes a passage extension portion 31 or a free portion 32 that is a portion adjacent to the air passage 2 and the passage extension portion 31, and Since the valve films 11 and 12 constituting the passage extension portion 31 and the free portion 32 are of a single body, the strain of the valve films 11 and 12 in the passage extension portion 31 can be absorbed by the free portion 32. Thus, at least in the passage extension 31, the tension of the valve film is stabilized, and the valve films 11 and 12 can be reliably brought into close contact with each other without causing slack and wrinkles. .
- the invention described in claim 3 or 4 is the invention described in claim 1 or 2. Therefore, the dimension L2b between the ends on the outlet side is larger than the dimension L2a between the ends on the inlet side of the air passage 2 between the seal part 21 on the other side and the seal part 22 on the other side. As a result, the free portion 32 can be formed larger than the passage extension portion 31, and a deaeration valve that can more effectively absorb strain in the free portion 32 can be provided. It is.
- the invention described in claim 5 includes the upstream side edges 11a, 12a of the valve films 11, 12 and the other side.
- the upstream side edges 12a and 11a of the valve films 12 and 11 are arranged so as to be shifted from the upstream side and the downstream side, respectively, so that the deaeration valve 1 forms the bag side film constituting the deaeration bag 5.
- the inlet 2a of the air passage 2 could be adhered and blocked without being blocked.
- the valve films 11 and 12 are easily opened, and the air fl during the deaeration is smoothly introduced into the air passage 2.
- the invention described in claim 6 provides at least one of the inner surfaces of the valve films 11 and 12 in the air passage 2. Since the inert liquid 4 such as silicon oil is coordinated in the area, the viscosity of the liquid 4 can further strengthen the adhesion between the valve films 11 and 12 when the air passage 2 is closed. It is a thing.
- the invention according to claim 7 is a simple structure, can stabilize the tension of the valve films 11 and 12, and can effectively prevent backflow of air. It was possible to provide a compression bag with an air valve, and heat-resistant paint 7 was arranged on at least part of the inner surface of the valve films 11 and 12 in the air passage 2 of the deaeration valve 1. Therefore, a compression bag equipped with a deaeration valve that does not cause the valve films 11 and 12 to be welded and the air passage 2 to be blocked by the influence of heat during heat sealing during the formation of the compression bag 1 is obtained. We were able to provide it.
- valve films 11, 12, and the longitudinal direction of the valve films 11, 12 is used.
- a plurality of the above-mentioned deaeration valves 1 are arranged in parallel so that the air passage 2 and the free part 32 are adjacent to each other. Since the compression bag 2 can be manufactured one after another, the manufacturing efficiency can be improved.
- the number of air passages 2 per compression bag 5 can be easily increased as the size of the compression bag 5, especially the width dimension, increases. Therefore, even in the case of a large compression bag 5, deaeration does not become difficult, and a compression bag having a deaeration valve can be provided.
- the valve protection seal 67 is formed at the boundary between the article storage area 62a and the air introduction area 62b.
- a compression bag having a deaeration valve that can prevent articles such as clothes stored in the article storage area 62a from being sucked into the air passage 2.
- one of the bag-side films 51 and 52 coordinated in the air introduction area 62b is used. It is possible to maintain a state where the part does not deform without being swollen by this. Therefore, a compression bag equipped with a deaeration valve that can maintain the deaeration valve 1 in a flat state without being affected by the stored articles and can reliably open and close the air passage 2 is provided. It was made.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/016089 WO2007029292A1 (ja) | 2005-09-02 | 2005-09-02 | 脱気弁及びこの脱気弁を備えた圧縮袋 |
| EP20050776971 EP1930247A1 (en) | 2005-09-02 | 2005-09-02 | Deaeration valve and compression bag with the deaeration valve |
| JP2007534195A JP4792035B2 (ja) | 2005-09-02 | 2005-09-02 | 脱気弁及びこの脱気弁を備えた圧縮袋 |
| CN2005800088153A CN1934382B (zh) | 2005-09-02 | 2005-09-02 | 除气阀及配备有该除气阀的压缩袋 |
| US10/571,899 US7708464B2 (en) | 2005-09-02 | 2005-09-02 | Deaeration valve and compression bag equipped therewith |
| US12/719,722 US8419278B2 (en) | 2005-09-02 | 2010-03-08 | Check valve and compression bag and air cushion bag equipped therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/016089 WO2007029292A1 (ja) | 2005-09-02 | 2005-09-02 | 脱気弁及びこの脱気弁を備えた圧縮袋 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/571,899 A-371-Of-International US20080127684A1 (en) | 2004-07-14 | 2005-07-14 | Release for Fastening Assembly |
| US12/719,722 Continuation-In-Part US8419278B2 (en) | 2005-09-02 | 2010-03-08 | Check valve and compression bag and air cushion bag equipped therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007029292A1 true WO2007029292A1 (ja) | 2007-03-15 |
Family
ID=37835429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/016089 Ceased WO2007029292A1 (ja) | 2005-09-02 | 2005-09-02 | 脱気弁及びこの脱気弁を備えた圧縮袋 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7708464B2 (ja) |
| EP (1) | EP1930247A1 (ja) |
| JP (1) | JP4792035B2 (ja) |
| CN (1) | CN1934382B (ja) |
| WO (1) | WO2007029292A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104783559A (zh) * | 2014-01-19 | 2015-07-22 | 上海艾尔贝包装科技发展有限公司 | 一种充气垫及其制造方法 |
| CN105662011A (zh) * | 2012-03-06 | 2016-06-15 | 上海艾尔贝包装科技发展有限公司 | 一种充气垫 |
| JP2017030833A (ja) * | 2015-08-04 | 2017-02-09 | 株式会社ヤマモン | 弁構造と収納袋及びフィルム弁 |
| CN109027334A (zh) * | 2018-06-27 | 2018-12-18 | 上海鹏型精密模具科技有限公司 | 一种防水透气塞 |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8419278B2 (en) * | 2005-09-02 | 2013-04-16 | Mikio Tanaka | Check valve and compression bag and air cushion bag equipped therewith |
| ITMI20070175U1 (it) * | 2006-05-13 | 2007-11-14 | Haver & Boecker Ohg | Confezione |
| US8328421B2 (en) * | 2008-01-30 | 2012-12-11 | S.C. Johnson & Son, Inc. | Push-down compressible pouch with one-way valves on sides |
| JP4887337B2 (ja) * | 2008-03-21 | 2012-02-29 | 廖建華 | 多孔からの排気が可能な収納袋 |
| JP4436925B1 (ja) * | 2009-10-30 | 2010-03-24 | 株式会社アシスト | 逆止弁及び密封袋、及び逆止弁と密封袋の製造方法 |
| KR101228514B1 (ko) * | 2010-03-08 | 2013-02-01 | 미키오 다나카 | 역지밸브 및 그 역지밸브를 구비한 압축주머니 및 에어완충주머니 |
| US8961014B2 (en) * | 2010-10-22 | 2015-02-24 | S.C. Johnson & Son, Inc. | Compressible pouch with multiple collapsible channels across bottom |
| TWI413608B (zh) * | 2011-06-08 | 2013-11-01 | Yaw Shin Liao | Can be a number of gas filling structure |
| CN102406271B (zh) * | 2011-11-02 | 2016-05-25 | 周艳春 | 具有双袋组合单向气阀的通风鞋 |
| CN102689743B (zh) * | 2012-03-06 | 2015-08-26 | 上海艾尔贝包装科技发展有限公司 | 自粘膜止回阀和空气包装装置 |
| US9725066B2 (en) * | 2013-05-04 | 2017-08-08 | Shanghai Air-Paq Composite Material Co., Ltd | Air bag packaging arrangement and self-adhesive checking valve |
| CN206068499U (zh) * | 2015-05-22 | 2017-04-05 | 聂会平 | 空气缓冲体的充气装置 |
| US10266330B2 (en) | 2017-02-14 | 2019-04-23 | Misumaru Sangyo Co., Ltd. | Compression bag and deflation valve for use therewith |
| JP6986268B2 (ja) * | 2018-04-26 | 2021-12-22 | 株式会社ヤマモン | フィルム弁及び収納袋 |
| CN109502162B (zh) * | 2018-11-21 | 2024-09-06 | 广东太力科技集团股份有限公司 | 一种用于真空压缩袋上的单向排气通道 |
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| JPH10706A (ja) * | 1996-06-14 | 1998-01-06 | Seisan Nipponsha Kk | 逆止弁付合成樹脂製袋体の製造方法 |
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| JP2880128B2 (ja) * | 1996-05-23 | 1999-04-05 | 錦商事株式会社 | 逆止弁 |
| JP3563024B2 (ja) * | 2000-10-12 | 2004-09-08 | 株式会社柏原製袋 | 圧縮袋 |
| JP2002193273A (ja) * | 2000-12-22 | 2002-07-10 | R:Kk | 圧縮収納袋 |
| CN2466063Y (zh) * | 2001-03-06 | 2001-12-19 | 陈莉嘉 | 自密封薄膜袋 |
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- 2005-09-02 WO PCT/JP2005/016089 patent/WO2007029292A1/ja not_active Ceased
- 2005-09-02 JP JP2007534195A patent/JP4792035B2/ja not_active Expired - Fee Related
- 2005-09-02 EP EP20050776971 patent/EP1930247A1/en not_active Withdrawn
- 2005-09-02 CN CN2005800088153A patent/CN1934382B/zh not_active Expired - Fee Related
- 2005-09-02 US US10/571,899 patent/US7708464B2/en active Active
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| JPS58112955A (ja) * | 1981-12-12 | 1983-07-05 | 高浦 潔 | 逆止弁つき袋体 |
| JPH09290840A (ja) * | 1996-04-24 | 1997-11-11 | Seisan Nipponsha Kk | 逆止弁付合成樹脂製袋体 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662011A (zh) * | 2012-03-06 | 2016-06-15 | 上海艾尔贝包装科技发展有限公司 | 一种充气垫 |
| CN104783559A (zh) * | 2014-01-19 | 2015-07-22 | 上海艾尔贝包装科技发展有限公司 | 一种充气垫及其制造方法 |
| JP2017030833A (ja) * | 2015-08-04 | 2017-02-09 | 株式会社ヤマモン | 弁構造と収納袋及びフィルム弁 |
| CN109027334A (zh) * | 2018-06-27 | 2018-12-18 | 上海鹏型精密模具科技有限公司 | 一种防水透气塞 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007029292A1 (ja) | 2009-03-12 |
| JP4792035B2 (ja) | 2011-10-12 |
| CN1934382B (zh) | 2011-05-04 |
| US7708464B2 (en) | 2010-05-04 |
| EP1930247A1 (en) | 2008-06-11 |
| US20080253698A1 (en) | 2008-10-16 |
| CN1934382A (zh) | 2007-03-21 |
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