WO2007037081A1

WO2007037081A1 - Deaeration valve for compression bag and compression bag with deaeration valve

Info

Publication number: WO2007037081A1
Application number: PCT/JP2006/316596
Authority: WO
Inventors: Kazuya Tanaka
Original assignee: Kawai, Osamu
Priority date: 2005-09-28
Filing date: 2006-08-24
Publication date: 2007-04-05

Abstract

A deaeration valve for a compression bag comprising a base (2), a cover (3), and a valve element (4). A deaerating port (22) allowing the inside of the compression bag to communicate with the outside is formed in the base (2). Cover side through holes (32) led to the inside of the cover (3) are formed in the upper surface of the cover (3). The valve element (4) is sucked to the deaerating port (22) by a negative pressure inside the compression bag to close the deaerating port (22). A pressing part (33) projected to press the valve element (4) is formed on the lower surface of the cover (3). A valve element storage chamber (S) is defined by the side wall (24) and the partition wall (21) of the base (2) and the lower end of the pressing part (33) of the cover (3). At least a part of the valve element (4) is disposed in the valve element storage chamber (S) in such a free state that it is not fixed to the base (2) or the cover (3) nor does not receive energization by an elastic body so that the valve element can be vertically moved in the valve element storage chamber (S).

Description

Specification

Deaeration valve for compression bag and compression bag with deaeration valve

Technical field

TECHNICAL FIELD [0001] The present invention relates to a deaeration valve for a compression bag that is used after deaeration of internal air, and a compression bag provided with the deaeration valve.

Background art

[0002] Patent Document 1: Japanese Utility Model Publication No. 5-44837

[0003] Conventionally, there is a compression bag that can store compactly stored items such as clothes and futons that store items that are bulky by containing air, and that are compressed by discharging the air inside. is doing.

[0004] 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. In addition to this, many compression bags are equipped with a deaeration valve having an air passage for discharging the air inside the bag.

[0005] When using this compression bag, the suction port of the vacuum cleaner is applied to the deaeration valve, and the air inside the bag is discharged by suction.

[0006] As an example of a deaeration valve, there is a "deaeration valve for a futon storage bag" described in Patent Document 1. This has a base that is integrally attached to the compression bag and communicates with the inside and the outside of the bag through an air passage, and a lid that is arranged so as to be screwable with the base.

[0007] A valve body is formed on the base body. This valve body is provided with a packing that also has rubber and other forces, and when the lid body is loosened with respect to the base body, the air passage formed in the lid body can be opened and closed.

[0008] Specifically, the valve body is urged by an urging means such as a spring so as to close the air passage, and as described above, the air passage is formed only when suctioned by a vacuum cleaner. It is opened so that the air in the bag is discharged to the outside. Finally, by screwing the lid into the base, the valve body can be fixed in a closed state, and the inside of the compression bag can be maintained in a deaerated state. In this conventional deaeration valve, since the valve body is urged by the urging means, even when suctioned by a vacuum cleaner, a time difference occurs in the operation of the valve body, and the evacuation is promptly performed. There was a problem that I couldn't feel. In addition, there is a problem that the number of constituent members is large, such as packing required for the biasing means.

In view of the above problems, an object of the present invention is to provide a degassing valve for a compression bag and a compression bag provided with the degassing valve, which have a relatively simple configuration. It is another object of the present invention to provide a degassing valve for a compression bag and a compression bag equipped with the degassing valve that can be quickly degassed. Disclosure of the invention

[0011] In order to solve the above-mentioned problem, the invention according to claim 1 of the present application has a threaded portion 24a and is attached to a through-hole provided in the compression bag B, whereby the compression bag B The base body 2 that serves as a degassing opening, the lid 3 attached to the upper side of the base body 2 by being screwed into the screw portion 24a, and a valve formed separately from the base body 2 and the lid body 3 The base body 2 is formed with a partition wall 21 that cuts off the inside and the outside of the compression bag B, and the partition wall 21 communicates the inside and the outside of the compression bag B. A deaeration port 22 is provided, and the upper surface 31 of the lid 3 has a corresponding portion 31a that comes into contact with the suction port N of the vacuum cleaner, and the corresponding portion 31a is a vacuum cleaner. The lid side through-hole 32 that leads to the inside of the lid 3 is provided in a region surrounded by the periphery of the suction port N when the suction port N is in contact. The valve body 4 is at least partially arranged in a valve body storage chamber S surrounded by the partition wall 21 and the lid body 3 of the base body 2. It can be sucked into the deaeration port 22 by the negative pressure inside, and the upper force can be blocked by the deaeration port 22, and when the lid 3 is loosened and moved upward, the vacuum cleaner sucks it. Is pulled away to the side of the lid 3 and can be separated from the deaeration port 22, and when the lid 3 is tightened and moved downward, the deaeration port 22 is sealed. In the deaeration valve to be maintained, the screw portion 24a is formed on the side wall 24 provided so as to protrude upward in the base body 2, and the lid 3 3 is provided with a pressing portion 33 for pressing the valve body 4, and the valve body storage chamber S includes the side wall 24 and It is defined by the partition wall 21 and the lower end of the pressing portion 33 of the lid body 3, and the valve body 4 is not urged by an elastic body other than the one fixed to the base body 2 or the lid body 3. In a free state When the part is arranged in the valve body storage chamber S and the lid 3 is loosened as described above, the part of the valve body 4 can move in the valve body storage room S in the vertical direction. There is provided a deaeration valve for a compression bag characterized by being capable of covering the entire deaeration port 22 even when the valve body 4 moves in the horizontal direction.

[0012] Further, in the invention according to claim 2 of the present application, when the lid body 3 is loosened, the vertical dimension of the valve body accommodating chamber S is at least the horizontal dimension of the valve body 4. The deaeration valve for a compression bag according to claim 1, wherein the deaeration valve for the compression bag is smaller than a minimum dimension passing through the center of the valve body 4.

[0013] In addition, the invention described in claim 3 of the present application is composed of only the base 2, the lid 3, and the valve 4 described above. Provides a degassing valve for compression bags.

[0014] In addition, the invention according to claim 4 of the present application is the radially outer side of the deaeration port 22 of the base 2 and the cover-side through-hole 32 of the cover 3, and the cover 3 is the base 2 The air bag obstruction wall 37 is provided on a radially outer side of the side wall 24 of the base body 2 in a state of being attached to the base body 2. Provides a pneumatic valve.

[0015] Further, according to the invention described in claim 5 of the present application, the ventilation blocking wall 37 is provided so as to protrude downward from the lower surface force of the lid 3, and from the lower surface of the lid 3. The height is set so as not to hinder the closing of the deaeration valve 1 by screwing the lid 3 against the base body 2, and at least the portion provided with the lid-side through-hole 32 in the lid 3 has a diameter. 5. The deaeration valve for a compression bag according to claim 4, wherein the deaeration valve is provided so as to traverse a region extending outward in the circumferential direction in the circumferential direction.

In the invention according to claim 6 of the present application, the pressing portion 33 of the lid 3 has a pressing ring 33 a, and the upper end surface 33 al of the pressing ring 33 a is lower than the upper surface 31 of the lid 3. The lid side through hole 32 is composed of a central side through hole 32a provided in the pressing ring 33a and a peripheral side through hole 32b provided outside in the plan view of the pressing ring 33a. The center side through hole 32a and the peripheral side through hole 32b have a continuous space 32c that is below the upper surface 31 of the lid 3 and continuous above the pressing ring 33a. A deaeration valve for a compression bag according to claim 1 or 2 is provided. [0017] Further, in the invention described in claim 7 of the present application, the valve body 4 includes a protruding portion 41 protruding upward, and the pressure ring 33a of the lid body 3 is provided with a valve body support portion 33b. 7. The deaeration valve for a compression bag according to claim 6, wherein the protrusion 41 is arranged to be movable up and down on the valve support 33b.

[0018] Further, the invention according to claim 8 of the present application is a compression bag B in which a sealed resin-made bag sheet B1 is bonded to form a sealable space inside. Then, when the deaeration valve 1 for a compression bag according to any one of claims 1 to 7 is attached to the bag sheet B 1, the air present in the space is removed from the deaeration valve. There is provided a compression bag characterized in that it can be deaerated through the deaeration port 22 and can maintain the deaerated state.

[0019] The invention according to claim 9 of the present application is such that an opening degree indicating portion 39 is provided on the surface of the lid 3 of the deaeration valve 1, and the deaeration valve 1 of the bag sheet B1 is provided. An open position display section B4 is provided at a position corresponding to the opening instruction section 39 in the open state, and a closed position display section B5 is positioned at a position corresponding to the opening instruction section 39 in the closed state of the deaeration valve 1. 9. A compressed bag according to claim 8, characterized in that it is provided.

Brief Description of Drawings

FIG. 1 is a plan view showing a compression bag equipped with a deaeration valve of this example.

[FIG. 2] (A) is a plan view showing a base of the deaeration valve of this example, (B) is a sectional view taken along the line AA, and (C) is a bottom view thereof.

FIG. 3 (A) is an enlarged plan view of a main part showing a side wall of a base of the deaeration valve of this example, and (B) is an enlarged side view of the main part.

4A is a plan view showing a base of a deaeration valve according to another embodiment, FIG. 4B is a sectional view taken along the line B-B, and FIG. 4C is a bottom view thereof.

[FIG. 5] (A) is a plan view showing the lid of the deaeration valve of this example, (B) is a cross-sectional view of the same CC, and (C) is a bottom view of the same.

FIG. 6A is a plan view showing a lid of a deaeration valve according to another embodiment, FIG. 6B is a sectional view of the same DD, and FIG. 6C is a bottom view of the same.

[FIG. 7] (A) is a plan view showing a lid of a deaeration valve according to another embodiment, and (B) is the same E— E combined sectional view, (C) is a bottom view of the same.

FIG. 8A is a plan view showing a lid of a deaeration valve according to another embodiment, FIG. 8B is a sectional view of the same G—G combination, and FIG. 8C is a bottom view of the same.

FIG. 9 is a plan side perspective view showing a lid of a deaeration valve according to another embodiment.

FIG. 10 is a bottom perspective view showing a deaeration valve lid according to another embodiment.

FIGS. 11A and 11B are perspective views on the plane side showing a valve body of a deaeration valve according to another embodiment.

FIG. 12 (A) is a plan view showing a base of a deaeration valve according to another embodiment, and FIG. 12 (B) is a sectional view of the same H—H combination.

FIG. 13 (A) is a plan view showing a lid of a deaeration valve according to another embodiment, and FIG. 13 (B) is a sectional view taken along the same line II.

[FIG. 14] (A) is a plan view of the deaeration valve in the closed state of this example, (B) is a cross-sectional view of the same JJ combination, and (C) is an enlarged view of the main part of the same KK cross-section.

[FIG. 15] (A) is a plan view of the deaeration valve of this example in an open state, and (B) is a sectional view of the same L L combination.

FIG. 16 (A) is a plan view of a deaeration valve according to another embodiment in a closed state, and FIG. 16 (B) is a sectional view taken along the line MM.

FIG. 17A is a plan view of a deaeration valve according to another embodiment in an open state, and FIG. 17B is a cross-sectional view of the same O—O combination.

FIG. 18 is a plan view showing a compression bag to which a deaeration valve of this example is attached, in which an open / close indication is added to the bag.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a compression bag fitted with the deaeration valve of this example, Fig. 2 shows the base of the deaeration valve of this example, Fig. 5 shows the lid of the deaeration valve of this example, and Figs. 15 shows the open and closed state of the deaeration valve of this example.

[0022] A deaeration valve 1 for a compression bag according to this example includes a base body 2 and a lid body 3 formed separately from each other, as shown in Figs. It is comprised. Compared to conventional deaeration valves It has a relatively simple configuration with a small number of component members. As shown in FIG. 1, the deaeration valve 1 is attached to a compression bag B in which a space that can be sealed is formed by bonding a flexible bag sheet B1 made of resin. used. In the following description, the expression related to the positional relationship of the deaeration valve 1 assumes that the deaeration valve 1 is arranged in the horizontal direction (see Fig. 14 (B)), and the external direction of the compression bag B is "upper". The internal direction is “downside”.

[0023] The base 2 is as shown in FIG. 2, and is compressed as shown in FIG. 1 by being attached to a through hole (not shown) provided in the compression bag B. It serves as a vent for bag B.

The base body 2 includes a flat mounting plate 23. In this example, the mounting plate 23 is a disk-shaped force. The mounting plate 23 can be implemented in various forms such as an elliptical shape and a polygonal shape.

[0025] This attachment plate 23 has an upper side surface as shown in FIGS. 14 (B) and 15 (B) when the deaeration valve 1 is attached to the bag sheet B1 constituting the compression bag B. It abuts against the inner surface of the bag sheet B1, and a part thereof is bonded to the bag sheet B1.

[0026] As shown in FIGS. 2 (A) and 2 (B), the mounting plate 23 is provided with a cylindrical side wall 24 protruding upward. In this example, it is substantially cylindrical. As described above, when the base body 2 is attached to the compression bag B, the side wall 24 passes through the through-hole provided in the bag sheet B1 as described above. Then, the periphery of the through hole of the bag sheet B1 and the mounting plate 23 are bonded in an airtight manner.

[0027] As shown in FIGS. 2B and 3, the side wall 24 of this example has a threaded portion 24a on the outer peripheral surface.

However, the present invention is not limited to this, and one having a screw portion 24a on the inner peripheral surface or one having both the outer peripheral surface and the inner peripheral surface may have the screw portion 24a. The threaded portion 24a in this example is formed as an engaging groove 24a inclined with respect to the horizontal direction. As shown in FIG. 14 and FIG. 15, the base 2 and the lid are formed by engaging the engagement groove 24 a with the front end claw 34 a of the hook 34 of the lid 3 shown in FIG. 5 (B). Body 3 is united.

[0028] As shown in FIG. 2 (A), two engaging grooves 24a in this example are provided every 180 ° with respect to the center of the mounting plate 23 in a plan view. Each engagement groove 24a has a range obtained by adding the size of the tip claw 34a of the hook 34 to the both ends of the 90 ° range in plan view, that is, the lid. The body 3 is formed so as to be rotatable within a range of 90 °. Further, as shown in FIG. 3, a click projection 24b is provided on the outer peripheral surface of the side wall 24 so as to sandwich the engagement groove 24a. The click protrusions 24b are provided to the base 2 corresponding to the position where the lid 3 is most loosened (open position) and the position where the lid 3 is most tightened (closed position). The click projections 24b can fix the lid 3 between the open position and the closed position when the inner surface of the hook portion 34 in the lid 3 gets over. Note that a click protrusion 24b may be provided inside the engagement groove 24a. In that case, a recess that fits into the click projection 24b is formed on the inner surface of the tip claw 34a of the lid 3, and the recess 3 and the click projection 24b are fitted to each other to form the lid 3 It is good also as what fixes.

[0029] In this example, the force in which the threaded portion 24a as the concave portion is formed on the base 2 side and the hook portion 34 as the convex portion is formed on the lid 3 side is contrary to this. Convex force on the side Even if a concave portion is formed on the lid 3 side, it can be changed as appropriate.

Here, FIG. 12 shows an example of the base 2 having the threaded portion 24a on the inner peripheral surface of the side wall 24 as described above. As shown in FIG. 12 (B), the threaded portion 24a is provided so as to circulate 360 degrees or more around the inner peripheral surface of the side wall 24 in a spiral force having a triangular cross-sectional shape. Yes.

FIG. 13 shows an example of the lid 3 corresponding to the base 2 described above. In this example, as shown in FIG. 13 (B), a thread 34b is provided on the front end side of the outer peripheral surface of the hook portion 34 so as to rotate 360 ° or more. The thread 34b corresponds to the tip claw 34a in the example shown in FIG. 5, and can be screwed into the thread 24a of the base 2 in this example.

In the example described here, the force is a structure in which an internal screw is provided on the base 2 side and an external screw is provided on the lid 3 side. On the contrary, an external screw is provided on the base 2 side. It may be a structure in which a screw is provided and an inner screw is provided on the side of the lid 3 and the hook portion 34 of the lid 3 is arranged on the radially outer side of the side wall 24 of the base 2. ,.

Returning to the example shown in FIG. 2, the description will be continued. The inner portion of the mounting plate 23 surrounded by the side wall 24 is a partition wall 21. The partition wall 21 can be cut off from the inside and outside of the compression bag B by being combined with the valve body 4. In this example, the upper surface of the partition wall 21 For example, a mortar-shaped curved surface may be used. And this partition

21 is provided with a deaeration port 22 for communicating between the inside and the outside of the compression bag B so as to allow ventilation. As described above, the mounting plate 23 of the base 2 is hermetically bonded to the bag sheet B1, so that the deaeration valve 1! /, And only the deaeration port 22! Will pass.

[0034] As shown in FIGS. 2A and 2C, the shape of the deaeration port 22 in this example is a hole provided in the center of the mounting plate 23 and the partition wall 21 in a circular shape in plan view. Yes. In this hole, a straight valve support 27 is located across the extension line of the rectifying plate 25 formed radially on the lower side of the mounting plate 23. The valve support 27 is divided into two parts every 180 ° in plan view with the center of the circle as a reference. The valve support portion 27 is for supporting the valve body 4 with a downward force. The shape of the deaeration port 22 is not limited to that of the present example. For example, as shown in FIGS. It may be. Further, the present invention can be carried out in various shapes that are good in arrangement of many small-diameter holes or slit-like holes extending in the radial direction or circumferential direction.

Further, as shown in FIG. 2 (B), on the upper surface of the partition wall 21, ribs 26, which are convex ridges protruding upward so as to surround the deaeration port 22, are formed. In this example, the rib 26 is a projection having a width of 1 mm and a height of 0.3 mm, and is provided in a continuous annular shape just outside the deaeration port 22 in the radial direction. Since the rib 26 is provided, as shown in FIG. 14 (B), when the pressing portion 33 presses the valve body 4 with an upward force, the rib 26 presses the valve body 4 from below. This makes it possible to more reliably close the deaeration port 22 by the valve body 4. As shown in FIG. 4, the rib 26 may not be provided.

Next, the lower surface of the mounting plate 23 is raised downward, and as shown in FIG. 2 (C), the mounting plate 23 extends radially with reference to the center of the mounting plate 23. A rectifying plate 25 having a curved shape on one side in the circumferential direction is provided as the central force increases. In this example, as shown in the figure, it extends along the radial direction of the mounting plate 23 until it is directed outward in the radial direction, and gradually curves in the circumferential direction from the middle. It is plate-shaped.

[0037] By providing the rectifying plate 25 having such a configuration on the lower surface of the mounting plate 23, the airflow that also discharges the internal force of the compression bag 1 is along the mounting plate 23 as shown in FIG. 2 (B). Directional air flow F1 As shown in FIG. 2 (C), it is guided to the deaeration port 22 while turning along the current plate 25, so that it is possible to deaerate with a relatively small resistance. In addition, the presence of the rectifying plate 25 causes the bag sheet Bl located behind the deaeration valve 1 or the stored items in the bag to be sucked and the deaeration port 22 to be blocked from the inside of the bag. This can prevent the situation where deaeration becomes impossible.

Next, the lid 3 will be described with reference to FIG. The upper surface 31 of the lid 3 is a plane force or a slightly curved surface, and at least a part of the upper surface 31 is a corresponding portion 31a. The corresponding portion 31a is the tip of the nozzle of the vacuum cleaner. Abuts on the suction port N. And in this corresponding | compatible part 31a, when the suction opening N of a vacuum cleaner contact | abuts, the area | region enclosed by the periphery of the said suction opening N is equipped with the cover body side through-hole 32 penetrated to the up-down direction. The lid-side through-hole 32 is provided at four locations so as to surround the center-side through-hole 32a formed in the center of the corresponding portion 31a and the center-side through-hole 32a with substantially the same dimensions as the deaeration port 22 of the base body 2. And the peripheral through hole 32b. The airflow that has passed through the deaeration port 22 of the base 2 passes through the lid side through-hole 32 and is discharged to the outside of the deaeration valve 1. Specific degassing methods will be described later.

On the other hand, as shown in FIGS. 5B and 5C, a hooking portion 34 protrudes from the lower surface of the lid 3. Here, as shown in FIG. 5 (C), two hooking portions 34 are provided every 180 ° with respect to the center of the upper surface 31 of the lid 3 in the bottom view.

[0040] A tip claw 34a is formed at the tip of the hook 34 so as to face the inside. As described above, the front end claw portion 34a is engaged with the engagement groove 24a formed on the outer peripheral surface of the side wall 24 of the base body 2, and thereby the front end claw portion 34a in the engagement groove 24a. Corresponding to the movable range, the lid 3 can be rotated in the direction in which the lid 3 is loosened and tightened. Here, as shown in FIG. 3 (B), the engaging groove 24a is inclined with respect to the horizontal direction, so that the lid 3 moves up and down with respect to the base body 2 with the rotation. As described above, when the engaging groove 24a of the base body 2 is formed on the inner peripheral surface of the side wall 24, the shape of the hooking portion 34 is configured so that it can be engaged with the engaging groove 24a. Will also be changed

[0041] Here, the rotation range of the lid 3 of this example with respect to the base 2 is 90 °. That is, the lid The angle at which the body 3 is screwed into the base body 2 is only 90 °. Therefore, unlike the device described in Patent Document 1, the deaeration valve 1 of the present example does not need to be rotated many times with respect to the base body in order to screw the lid body, and thus is operated more than before. Easy.

[0042] It should be noted that the rotation range of the lid 3 is suitably in the range of 30 ° to 180 °, but is not limited to this. For example, as shown in FIG. The base body 2 having the threaded portion 24a that circulates 360 ° or more on the inner peripheral surface of the outer peripheral surface of the hook portion 34, as shown in FIG. When the lid 3 having the thread 34b is combined, the rotation range of the lid 3 with respect to the base body 2 may be set to the above angle or more and the lid 3 may be rotated one or more times. .

Further, as shown in FIG. 5 (C), a rotation support protrusion 36 is provided to protrude from the lower surface of the lid 3 at a position shifted by 90 ° with respect to the hook portion 34. ing. In this example, the pressing portion 33 is provided adjacent to the outer peripheral side. As shown in FIG. 14 (C), the rotation support protrusion 36 is arranged on the inner side of the inner surface of the side wall 24 of the base body 2 when the lid body 3 is attached to the base body 2. With this, the lid 3 can be rotated without wobbling against the base 2.

Next, as shown in FIGS. 5B and 5C, a pressing portion 33 is formed on the lower surface of the lid 3 that is closer to the center than the hooking portion 34 so as to protrude downward. As shown in FIGS. 14 (B) and 14 (C), the pressing portion 33 screws at least a part of the peripheral portion of the valve body 4 as the lid body 3 is screwed along the engaging groove 24a and moved downward. Can be pressed. In this example, as shown in FIG. In this example, as shown in FIG. 5 (C), there are four cross-shaped connecting portions 35 provided at every 90 ° with respect to the center of the upper surface 31 of the lid 3 inside the pressing portion 33. Provided force The connecting portion 35 is not necessarily formed.

Note that the form of the pressing portion 33 is not limited to that of this example. For example, as shown in FIG. 6C, the shape of the pressing portion 33 is 90 with respect to the center of the upper surface 31 of the lid 3 in the bottom view. It is assumed that four are provided for each angle, and a cross-shaped connecting portion 35 is provided in the bottom view so that the four pressing portions 33 are connected. In this case, since there is a gap between the pressing portions 33, the peripheral edge portion of the valve body 4 is not completely pressed. However, in the state after deaeration, the inside of the compression bag B has a negative pressure, and the valve body 4 is a soft material as described later. Since the power is also formed, the valve element 4 is sucked into the deaeration port 22 by this negative pressure. Therefore, there is no functional problem even if only a part of the peripheral edge of the valve body 4 is pressed as in the pressing portion 33 of this example. In this case, the positional relationship between the pressing portion 33 and the base body 2 when the pressing portion 33 presses the valve body 4 is on the outer peripheral side of the four regions of the deaeration port 22 divided by the rectifying plate 27. Therefore, the pressing portion 33 is positioned. That is, since the pressing portion 33 presses the valve body 4 just outside the region of the deaeration port 22, the valve body 4 can be reliably fixed in the closed state.

Further, as shown in FIG. 7, a cylindrical pressing portion 33 may be formed so as to cover the entire circumference around the valve body 4. Further, as shown in FIG. 8, a pressing portion 33 in a form (dumbbell shape) in which two of the center side through holes 32a sandwiching the center of the lid 3 are opened. In these cases, the lid 3 shown in FIG. 7 does not have the central through-hole 32a at all, and the lid 3 shown in FIG. 8 has the central through-hole 32a in the lid shown in FIG. Since the opening area is half of the central through hole 32a, the peripheral through hole 32b is provided continuously to ensure an opening at the time of deaeration.

[0047] Further, as the form of the pressing portion 33, in addition to what has been described above, the upper end surface 33al of the pressing portion 33 is located below the upper surface 31 of the lid 3, as shown in FIG. 9 and FIG. It is good also as what has the pressing ring 33a which is located. That is, as shown in FIG. 9, the center part of the lid 3 is in a depressed shape. Alternatively, it can be said that the position of the upper end surface is moved downward without changing the position of the lower end surface of the pressing portion 33 in the lid 3 shown in FIG. In this case, the pressing ring 33a presses at least a part of the peripheral edge of the valve body 4.

[0048] In this case, the center side through hole 32a of the lid side through hole 32 is provided in the pressing ring 33a. On the other hand, the peripheral side through hole 32b is provided around the center side through hole 32a as in the above example, that is, outside the pressing ring 33a in plan view.

[0049] As described above, since the upper end surface 33al of the pressing ring 33a is positioned one step lower than the upper surface 31 of the lid 3, the central through hole 32a and the peripheral through hole 32b are A continuous space 32c is provided below the upper surface 31 of the lid 3 and continuous above the pressing ring 33a. By forming the continuous space 32c in this way, as shown in FIG. 17 (C), during the deaeration, the airflow that has passed through the deaeration port 22 of the base 2 is transferred to the central through-hole 32a. Since it can be passed through the continuous space 32c in addition to the peripheral side through hole 32b, the ventilation area in the lid 3 can be expanded, and quicker deaeration is possible.

[0050] In this example, as will be described later, the pressing ring 33a has a shape capable of aligning the protruding portion 41 of the valve body 4. Specifically, the connecting portion 35 on the center side of the pressing ring 33a is formed in a ring shape as shown in the figure, and this portion serves as a valve body support portion 33b. The relationship between the valve body support portion 33b and the valve body 4 will be described later.

Here, in the example shown in FIG. 13 as well, as shown by the broken line in FIG. 13B, the valve body 4 having the protrusion 41 described later is used. A valve body support portion 33b having a hole through which the protruding portion 41 of the valve body 4 passes is provided at the lower end portion in the figure.

Further, in the example shown in FIGS. 9 and 10, the airflow obstructing wall 37 is provided so that the lower surface force of the lid 3 also protrudes. The ventilation blocking wall 37 is a portion of the lower surface of the lid portion 3 where the hooking portion 34 is not provided, and is provided at the same diameter as the hooking portion 34 at the same diameter as the hooking portion 34. A plate-like protrusion. As for the height of the air blocking wall 37, when the lid 3 is screwed into the base 2 and the deaeration valve 1 is closed, the lower end of the air blocking wall 37 is attached to the mounting plate 23 of the base 2. Closing the deaeration valve 1 is not hindered by interfering with the upper surface of the bag (the deaeration valve 1 attached to the compression bag B is the surface of the bag sheet B1 mounted on the mounting plate 23). Then you can decide freely.

[0053] Thereby, the lid side through-hole 32 (center side through-hole 32a, peripheral side through-hole 32b) and the pressing portion 33 are formed by the hooking portion 34 and the ventilation blocking wall 37 as shown in FIG. The outer side in the radial direction is surrounded. In this example, a gap is provided between the hook 34 and the air blocking wall 37 (see FIG. 10), but the hook 34 and the air blocking wall 37 are integrated so that there is no gap. It may be formed. Further, the air blocking wall 37 may be formed on the outer side in the radial direction than the hook portion 34.

[0054] Next, the effect of the ventilation blocking wall 37 will be described. As shown in FIG. 17 (B), the lid 3 is loosened with respect to the base body 2, and the lid 3 is moved to the uppermost position, and the suction port N of the electric vacuum cleaner is inserted into the corresponding portion 31a of the lid 3. When pressing and trying to deaerate the air in the bag through the deaeration port 22, in addition to the airflow passing through the original deaeration port 22, it enters from the periphery of the lid 3 and the lid 3 and the bag. Passes between the sheets B1, passes over the side wall 24 and reaches the lid side through hole 32 Undesirable airflow F2 is generated. This unfavorable air flow F2 becomes a factor that inhibits the deaeration from the deaeration port 22 that should be performed. Here, the air-flow-preventing wall 37 is formed so as to protrude downward from the lower surface of the lid 3 on the radially outer side of the side wall 24 in the base body 2, so that this undesirable air flow F2 is generated to some extent. Can be blocked. Therefore, the presence of the ventilation blocking wall 37 allows the degassing to be concentrated from the original degassing port 22, thereby enabling a quick degassing operation.

[0055] In order to effectively block the unfavorable air flow F2 as described above, the diameter of the inner surface of the air flow blocking wall 37 is larger than the diameter of the outer surface of the side wall 24 of the base body 2, It is also desirable that the dimensions be close enough that the inner surface of the air blocking wall 37 and the outer surface of the side wall 24 of the substrate 2 do not interfere with each other.

[0056] The ventilation blocking wall 37 is provided so that at least a portion of the lid 3 where the lid body side through hole 32 is provided extends radially outward in a circumferential direction. It is desirable that

[0057] However, even when the air blocking wall 37 is formed as described above, if the air flow F2 is completely blocked, the vacuum cleaner can be used even after the deaeration in the bag is finished. Continuing the suction could cause the motor to become overloaded and damage it, and in the worst case could cause a fire. Therefore, the air blocking wall 37 has a shape in which a gap is generated between the air blocking wall 37 and the mounting plate 23 when the lid 3 is loosened. Desirable to allow airflow F2 to pass through after degassing inside.

[0058] In the example shown in Figs. 9 and 10, the air blocking wall 37 is provided so as to protrude downward from the lower surface of the lid 3. However, as described above, an unfavorable air flow is provided. On the other hand, as long as F2 can be shut off, the air blocking wall 37 may be provided so as to protrude upward from the mounting plate 23 of the base 2.

[0059] The shape of the outer periphery of the lid 3 can be variously changed and implemented. For example, as shown in FIG. 9 and FIG.

[0060] The valve body 4 is at least partially surrounded by the partition wall 21 of the base body 2 and the lid body 3 in the valve body housing chamber S. Coordinated to In the example shown in FIGS. 14 and 15, the entire valve body 4 is arranged in the valve body storage chamber S. Specifically, the valve body storage chamber S is defined by the side wall 24, the partition wall 21, and the lower end of the pressing portion 33 of the lid body 3. The valve body 4 in this example is not fixed to the base body 2 or the lid body 3 or is made of an elastic body as described in Patent Document 1 (Japanese Utility Model Publication No. 5-44837). Arranged in the valve body storage chamber S in a free state that is not energized. Therefore, when the lid body 3 is loosened as described above, the valve body 4 can move in the valve body accommodation chamber S in the vertical direction. Further, even when the deaeration valve 1 is attached to the compression bag B, the portion protruding from the compression bag B due to the presence of an elastic body or the like can be reduced.

[0061] Regarding the form of the valve body 4 in a plan view, when the lid body 3 is loosened, various shapes such as a circle and a polygon can be used as long as the valve body accommodation chamber S can be moved up and down as described above. It can be implemented in the form of Further, it may be substantially the same as the dimension of the inner peripheral surface of the side wall 24 in the base body 2 and may not be moved substantially in the horizontal direction, or in the valve body storage chamber S in the horizontal direction. It is good also as a movable form. However, even if the valve body 4 is displaced in the horizontal direction, it is possible to cover the entire deaeration port 22 and there is no problem in closing the deaeration port 22. The form of the valve body 4 in the example shown in FIG. 14 is an oval shape. The dimensions are 24mm for the major axis and 20mm for the minor axis.

[0062] Further, the vertical dimension of the valve body storage chamber S is at least the minimum dimension passing through the center of the valve body 4 among the horizontal dimensions of the valve body 4 (in this example, the short diameter dimension of an oval) Even if the valve body 4 has a flat plate shape as in this example, the valve body 4 that does not turn over in the valve body housing chamber S operates reliably. It is supposed to be. In this example, the vertical dimension of the valve body storage chamber S is set to 6 mm or less, which is larger than the thickness of the valve body 4, so that the vacuum cleaner can be used even when suctioned by a vacuum cleaner. The motor is not overloaded and safety is high.

[0063] The valve body 4 is made of a soft grease such as rubber, and the suction port N of the vacuum cleaner is brought into contact with the corresponding portion 31a of the lid body 3 to suck the lid body 3 by suction. It is drawn to the side and can be separated from the vent hole 22. For the valve body 4 in the example shown in FIG. 14, a rubber sheet having a thickness of 0.6 mm is used. As above, the valve body 4 is in the free state and the valve body storage chamber S Since it is arranged inside and can move freely in the valve body storage chamber S, the valve body 4 does not move with respect to the suction as described above. It is possible. Then, after the above suction is completed, the suction bag 22 is quickly brought into close contact with the pressure difference between the negative pressure inside the compression bag B and the positive pressure outside. Therefore, even when the lid 3 is not fastened to the base 2 as shown in FIG. 15 (B), the deaerated state in the compression bag B is maintained. Further, when the lid 3 is tightened, as shown in FIG. 14 (B), the valve body 4 is pressed downward by the pressing portion 33 of the lid 3, so that the deaeration port 22 is sealed. It can be maintained and fixed in a state.

Here, as shown in FIGS. 4 (A) and 4 (B), the base 2 may have a guide portion 28 formed along at least a part of the inner peripheral surface of the side wall 24. The guide portion 28 is raised upward from the partition wall 21, and its inner peripheral surface regulates the horizontal movement of the valve body 4. That is, in this case, the valve body storage chamber S is defined by the guide portion 28 in addition to the lower end of the side wall 24, the partition wall 21, and the pressing portion 33.

[0065] Two guide portions 28 shown in FIGS. 4A and 4B are provided every 180 ° with respect to the center of the mounting plate 23 in plan view. Then, an inter-force between the guide portions 28 becomes a gap portion 29 which is a space along the inner peripheral surface of the side wall 24. For example, as shown in FIG. 15B, when the valve body 4 is separated from the deaeration port 22, the airflow that has passed through the deaeration port 22 is formed in the portion where the gap 29 is provided. The flow can reach the peripheral side through-hole 32b of the lid-side through-hole 32 of the lid 3 and the degassing can be performed more smoothly than the case without the clearance 29.

Note that the upper surface of the guide portion 28 shown in FIGS. 4 (A) and 4 (B) may be a plane inclined by a force that is a horizontal plane. Furthermore, a member that contacts the upper surface of the guide portion 28 may be provided on the lid 3 side. Further, the click protrusion 24b may be provided on the upper surface or the inner surface of the guide portion 28. Further, the present invention can be implemented in various forms as long as three or more guide portions 28 are provided and the number of the gap portions 29 is increased correspondingly.

Here, the valve body 4 described above has a flat plate-like force. As shown in FIG. 11, it is assumed that the valve body 4 has a protruding portion 41 protruding above the main body portion 42 having a flat plate shape. You can also As described above, the projecting portion 41 is arranged so as to be movable up and down on the valve body supporting portion 33b provided on the pressing ring 33a of the lid 3. If the valve body 4 has such a shape, The main body 42 is arranged in the valve body storage chamber S in a free state.

More specifically, as shown in FIG. 11 (A), the protrusion 41 is provided at the center of the main body 42 in the valve body 4, and is an intermediate portion of the protrusion 41. 41a has a circular cross section, and the diameter of the cross section is slightly smaller than the inner diameter of the valve body support portion 33b that is also formed in a circular shape. The vertical dimension of the intermediate part 41a is formed larger than the vertical dimension of the valve body support part 33b. And the front-end | tip part 41b of the protrusion part 41 is formed larger than the internal diameter of the valve body support part 33b. Therefore, the valve body 4 attached to the valve body support portion 33b can move up and down within the range of the vertical dimension of the intermediate portion 41a that does not fall off.

[0069] When the valve body 4 is arranged in a part of the lid 3 in this way, the valve body 4 can be hardly displaced in the left-right direction, and the valve body 4 (particularly the main body 42) Can be operated stably.

[0070] Even when the protruding portion 41 is provided on the valve body 4 as described above, as shown in Fig. 11 (B), the tip portion 41b having an enlarged diameter is not provided, and a constant diameter is provided. It is good also as the protrusion part 41 which has. Even in this case, the vertical movement of the valve body 4 (particularly the main body portion 42) is defined by the upper and lower dimensions of the valve body storage chamber S, that is, the distance between the partition wall 21 and the lower end of the pressing portion 33. .

[0071] Further, the valve body 4 in the form provided with the protrusion 41 is combined with the lid 3 provided with the valve body support portion 33b formed in a ring shape as shown in Figs. Although used, the lid body 3 provided with the valve body support portion 33b may be combined with the flat valve body 4 without the protrusion 41.

[0072] As shown in Fig. 1, the deaeration valve 1 according to the above configuration has a flexible resin-made bag sheet B1 force. It is used by being attached to a compression bag B in which a sealable space is formed. The compression bag B is provided with an opening B2 for taking in and out the stored items, and the opening B2 is provided with a chuck B3 that can be closed in an airtight state.

[0073] In using this compression bag B, after storing the stored items, the chuck B3 is closed, and in this state, the lid 3 is loosened with respect to the base 2 of the deaeration valve 1, and FIG. As shown in Fig. 3, the suction port N of the vacuum cleaner is pressed against the corresponding part 31a of the lid 3 so that the air in the bag is passed through the deaeration port 22. Deaerate. Even after this deaeration, the valve body 4 and the deaeration port 22 are in close contact with each other due to the pressure difference between the inside and outside of the bag, so that the deaeration state can be maintained, but the deaeration state is more reliably maintained. In order to achieve this, the lid 3 is screwed into the base 2 and the valve body 4 is forced against the deaeration port 22 by the pressing portion 33 of the lid 3 as shown in FIG. Press down. Thereby, the deaerated state can be maintained for a long period of time.

[0074] As shown in FIG. 18, a display showing the open / closed state of the deaeration valve 1 may be provided on the surface of the compression bag B by printing or the like. Specifically, an opening degree instruction unit 39 such as an arrow is provided on the upper surface 31 of the lid 3 in the deaeration valve 1, and matches the position of the opening degree instruction unit 39 in the opened state of the deaeration valve 1. The opening position display part B4 is provided on the surface of the bag sheet B1 to be closed, and the closing position display part B5 is also provided on the surface of the bag sheet B1 that coincides with the position of the opening degree instruction part 39 in the closed state. . Note that the opening degree instruction unit 39 is not limited to the upper surface 31 of the lid 3 as in the illustrated example, but is on the surface of the lid 3 so long as the user of the compressed bag B is easily visible. It may be provided at other positions such as a side surface. In addition, the opening degree instruction unit 39 may be formed at the same time as the lid 3 is molded, or may be formed separately by sticking a seal or painting. Can be implemented. Similarly, the open position display section B4 and the closed position display section B5 can be implemented by various means such as sticking a seal.

[0075] In the case where the opening degree indicator 39 and the display means B4, B5 are provided as described above, the user of the compression bag B can check the open / close state of the deaeration valve 1 at a glance. Easier to use V, compression bag B.

The present invention has the following excellent effects. First, in the invention of claim 1, the valve body storage chamber S is defined by the side wall 24, the partition wall 21, and the lower end of the pressing portion 33 of the lid body 3, and the valve body 4 is the base body 2 or Since at least a portion is arranged in the valve body storage chamber S in a free state that is not urged by an elastic body that is not fixed to the lid 3, a compression bag is formed due to the presence of an elastic body or the like. We were able to provide a degassing valve for a compression bag that could reduce the amount of protruding parts and that could be quickly degassed without causing a time difference in the operation of the valve body 4 with respect to the vacuum cleaner suction. Is.

[0077] In addition to the above-described effect, the invention according to claim 2 provides the valve body storage chamber S in the vertical direction. Deaeration for a compression bag that operates reliably without flipping over the valve body 4 because the dimension is at least smaller than the minimum dimension passing through the center of the valve body 4 among the horizontal dimensions of the valve body 4 We were able to provide a valve.

[0078] In addition, the invention of claim 3 is based on the effect of the invention of claim 1 or 2 above, and only the base 2, the lid 3 and the valve body 4 are configured with force. It was possible to provide a deaeration valve for compression bags with a simple configuration.

[0079] Further, the invention according to claim 4 is based on the effect of the invention of claim 1 or 2 above, and is provided with the air blocking wall 37, so that the peripheral force of the lid 3 enters, and the side wall Undesirable airflow F2 that crosses 24 and reaches the lid side through-hole 32 can be blocked to some extent. Therefore, the presence of this air-blocking wall 37 allows the deaeration to be concentrated from the original deaeration port 22 and enables a quick deaeration operation.

[0080] Further, according to the invention described in claim 5 of the present application, the air blocking wall 37 is provided so as to protrude downward from the lower surface force of the lid body 3, and is provided from the lower surface of the lid body 3. The height is set so as not to hinder the closing of the deaeration valve 1 by screwing the lid 3 against the base body 2, and at least the portion provided with the lid-side through-hole 32 in the lid 3 has a diameter. This air blocking wall 3 7 does not hinder the original function of the deaeration valve, and the unfavorable air flow F2 is more effective because it is provided so as to cross the region extended outward in the circumferential direction. It was possible to shut off.

[0081] Further, the invention of claim 6 is based on the effect of the invention of claim 1 or 2, and includes a pressing ring 33a having an upper end surface 33al positioned below the upper surface 31 of the lid 3. The central side through hole 32a and the peripheral side through hole 32b are below the upper surface 31 of the lid 3 and have a continuous space 32c continuous above the pressing ring 33a. At the time of deaeration, in addition to the central side through hole 32a and the peripheral side through hole 32b, the air flow can be passed through the continuous space 32c. It was possible to provide a degassing valve for a compression bag.

[0082] In addition to the effect of the invention of claim 6, the invention of claim 7 is arranged such that the protruding portion 41 of the valve body 4 is movable up and down to the valve body support portion 33b of the lid body 3. As a result, the valve body 4 can be hardly displaced in the left-right direction, and the valve body 4 can be stably operated. A deaeration valve for a compression bag could be provided.

[0083] The invention according to claim 8 can provide a compression bag having the effects of any one of the inventions according to claims 1 to 7.

[0084] Further, in the invention of claim 9, in addition to the effect of the invention of claim 8, the deaeration valve 1 is provided with an opening instruction part 39, and the bag sheet B1 is provided with an open position display part B4 and a closing position. By providing the position indicator B5, the user of the compression bag B can check the open / close state of the deaeration valve 1 at a glance, and the compression bag B that is easier to use can be provided. It is.

Claims

The scope of the claims

A base body (2) which has a threaded portion (24a) and is attached to a through hole provided in the compression bag (B), and serves as a degassing port of the compression bag (B);

A lid (3) attached to the upper side of the base (2) by being screwed into the threaded portion (24a);

The base body (2) and the lid body (3) are provided separately from the valve body (4), and the base body (2) connects the inside and the outside of the compression bag (B). A partition wall (21) is formed, and a deaeration port (22) is provided in the partition wall (21) to connect the inside and the outside of the compression bag (B).

The upper surface (31) of the lid (3) has a corresponding part (31 a) that contacts the suction port (N) of the vacuum cleaner, and the corresponding part (31a) When the suction port (N) is contacted, a region surrounded by the periphery of the suction port (N) is provided with a lid side through-hole (32) leading to the inside of the lid (3),

The valve body (4) is at least partially arranged in a valve body housing chamber (S) surrounded by the partition wall (21) of the base body (2) and the lid body (3),

This valve body (4) is sucked to the deaeration port (22) by the negative pressure inside the compression bag (B) and can close the deaeration port (22) from above, and the lid When the body (3) is loosened and moved upward, it is drawn to the lid (3) side by suction of a vacuum cleaner and can be separated from the vent (22). In the deaeration valve that keeps the deaeration port (22) sealed when (3) is tightened and moved downward,

The threaded portion (24a) is formed on the side wall (24) provided so as to protrude upward in the base body (2),

The lower surface of the lid (3) is provided with a pressing portion (33) for pressing the valve body (4) in accordance with the screwing of the lid (3).

The valve body storage chamber (S) is defined by the side wall (24), the partition wall (21), and the lower end of the pressing portion (33) of the lid (3),

The valve body (4) is in a free state in which the valve body (4) is not urged by an elastic body that is not fixed to the base body (2) or the lid body (3). Coordinated with When the lid (3) is loosened as described above, the part of the valve body (4) can move in the vertical direction in the valve body housing chamber (S), and the valve body (4) A deaeration valve for a compression bag, which is capable of covering the entire deaeration port (22) even when the bag moves horizontally.

[2] When the lid body (3) is loosened, the vertical dimension of the valve body storage chamber (S) is at least the horizontal dimension of the valve body (4). The deaeration valve for a compression bag according to claim 1, wherein the deaeration valve is smaller than a minimum dimension passing through the center of the bag.

[3] The deaeration valve for a compression bag according to claim 1 or 2, wherein only the base (2), the lid (3), and the valve body (4) are also configured.

[4] The outer side in the radial direction of the degassing port (22) of the base body (2) and the lid body side through hole (32) of the lid body (3), and the lid body (3) is attached to the base body (2) The compressed bag for a compression bag according to claim 1 or 2, wherein a ventilation blocking wall (37) is provided on a radially outer side of the side wall (24) of the base body (2) in the formed state. Deaeration valve.

[5] The ventilation blocking wall (37) is provided so as to protrude downward from the lower surface of the lid (3),

The height from the lower surface of the lid (3) is such that the lid (3) is screwed into the base (2) and the deaeration valve (1) is not blocked.

The at least part of the lid (3) provided with the lid side through-hole (32) is provided so as to cross the region extending radially outward in the circumferential direction. The deaeration valve for compression bags as described in 2.

[6] The pressing part (33) of the lid (3) has a pressing ring (33a),

The upper end surface (33al) of the pressing ring (33a) is located below the upper surface (31) of the lid (3).

The lid side through hole (32) is formed from a central side through hole (32a) provided in the pressing ring (33a) and a peripheral side through hole (32b) provided outside in a plan view of the pressing ring (33a). The center side through hole (32a) and the peripheral side through hole (32b) are continuously below the upper surface (31) of the lid (3) and above the pressing ring (33a). The deaeration valve for a compression bag according to claim 1 or 2, wherein the deaeration valve has a continuous space (32c).

[7] The valve body (4) includes a protruding portion (41) protruding upward, The pressure ring (33a) of the lid (3) is provided with a valve body support portion (33b), and the protrusion (41) is arranged on the valve body support portion (33b) so as to be movable up and down. The deaeration valve for a compression bag according to claim 6, wherein the deaeration valve is for a compression bag.

[8] A compression bag (B) in which a space that can be sealed is formed by bonding a flexible bag sheet (B1) made of resin.

Since the deaeration valve (1) for a compression bag according to any one of claims 1 to 7 is attached to the bag sheet (B1), the air present in the space is removed from the deaeration valve. A compression bag characterized in that it can be degassed through the mouth (22) and can maintain its degassed state.

[9] The opening degree indicator (39) is provided on the surface of the lid (3) of the deaeration valve (1), and the bag sheet (B1) is in the open state of the deaeration valve (1). An open position indicator (B4) is provided at a position that coincides with the opening degree indicator (39).

The compression bag according to claim 8, wherein a closed position display part (B5) is provided at a position corresponding to the opening degree instruction part (39) in the closed state of the deaeration valve (1).