JPH0544837U - Deaeration valve for storage bags such as futons - Google Patents

Abstract

(57) [Summary] [Purpose] In a deaeration valve for a storage bag such as a futon which has a lid screwing structure, prevents air from entering the storage bag after deaeration until the cover is tightened. [Structure] A base 1 has a partition wall 4 formed therein for blocking the inside and outside of the storage bag, and a ventilation port 5 for connecting the inside and the outside of the storage bag to the partition wall 4. Lid 2
The upper surface has a corresponding portion 20 that comes into contact with the suction port of the vacuum cleaner, and an appropriate number of holes 6 communicating with the inside of the lid 2 in a region surrounded by the suction port peripheral edge of the vacuum cleaner on the corresponding portion 20. . The valve body 3 is received in a space surrounded by the partition wall 4 of the base body 1 and the lid body 2, and the valve body 3 is in the space when the lid body 2 is loosened, and is stored in the storage bag. The one that can be sucked by the pressure to the ventilation port 5 to close the ventilation port 5 and that can be moved to the hole 6 of the lid 2 and separated from the ventilation port 5 by the suction of the cleaner. Is. Then, when the lid body 2 is screwed to tighten the lid body 2 to the base body 1,
The valve body 3 is pressed against the ventilation port 5 by the lid body 2 and maintains the ventilation port 5 in a closed state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a deaeration valve for a futon storage bag.

[0002]

[Prior Art]

 Conventionally, in order to save space such as a closet, when storing a futon, the futon is stored in a bag made of polyethylene, nylon, vinyl, etc. After the futon is stored, air is removed from the inside of the bag, and the futon volume is reduced to 1/3. It has become possible to see how to shrink it to some extent and store it in a closet. This storage method not only saves space, but also has the effects of preventing mold and ticks, and making it easier to handle futons. In such a futon storage bag, the futon storage port is sealed by an appropriate means, and the air vent (hereinafter referred to as deaeration) opening is provided in addition to the storage port. Deaeration is performed by sucking the vacuum cleaner with the suction port of the vacuum cleaner applied to this mouth. Regarding the mouth portion of the above-mentioned futon storage bag, for example, a deaeration valve as shown in FIG. 10 has been devised and filed by the applicant of the present application (Japanese Utility Model Laid-Open No. 2-95957). This is a base body a which has an appropriate fixing means g at an appropriate position on the outer peripheral surface and serves as a degassing port by being attached to a degassing hole provided in a storage bag Z such as a futon. The base a is provided with a lid b screwed to a portion exposed to the outside X of the storage bag Z and a packing c having an appropriate elasticity. Inside the base body a, a partition wall d for blocking the inside Y of the storage bag Z and the outside X is formed, and a ventilation port e for connecting the inside and outside of the storage bag Z is provided at the center of this partition wall d. There is. Further, the upper surface of the lid b has a flat corresponding portion f corresponding to the suction port W of the cleaner, and a region which is surrounded by the suction port W on the corresponding portion f and communicates with the inside of the base body a as appropriate. It has a number of holes h. Reference numeral i denotes a raised portion for positioning the suction port W of the vacuum cleaner. j indicates a threaded portion of the lid b, and k indicates a threaded portion of the base body a. The lid b is fixed to the base body a by screwing the two threaded portions j and k together. The packing c is an annular body fitted to the outer peripheral edge of the ventilation port e on the side facing the back surface of the lid b. The suction port W of the vacuum cleaner is applied to the corresponding portion f of the degassing valve, and the vacuum cleaner is driven to degas the inside of the storage bag Z from the hole h. Then, after the deaeration inside the storage bag Z is completed, the lid b is rotated to fasten the lid b to the base body a. At this time, the back surface of the lid b contacts the packing c and closes the vent hole e (FIG. 11). By adopting such a configuration, the airtightness in the storage bag Z after the ventilation port c of the base body a is closed by the tightening of the lid b is maintained almost completely, and no invasion of air occurs later. It was.

[0003]

[Problems to be solved by the device]

 The deaeration valve according to the above invention is compact and has an excellent effect that the shape of the suction port of the cleaner is not selected even if no attachment is used. Further, since the lid b and the base body a are screwed together, after the lid b is tightened, as described above, the invasion of air into the bag can be completely prevented. However, while having the above-mentioned excellent effect, there is a concern that air may be introduced into the storage bag Z by the time the lid b is completely tightened after suctioning. As with the above, no improvements were made. That is, when the lid b is tightened, the suction port W of the cleaner is removed, and the lid b and the packing c are not yet in contact with each other without applying the negative pressure by the suction. Occurs, causing air to flow back into the storage bag. Of course, it is conceivable to apply the suction port W of the vacuum cleaner and tighten the lid b while the vacuum cleaner is still driven, but the lid is maintained while the suction port W of the vacuum cleaner is pressed against the corresponding portion f. Rotating the body b is a troublesome work for one person, and the suction port W and the corresponding part f are worn or separated during the work, which causes air to enter the storage bag Z. In this regard, it is only the user's care that the air is allowed to enter the storage bag until the lid is tightened after deaeration, and the structure in which the lid and the base are screwed together is used. In the deaeration valve used, the airtightness before tightening the lid b was not completely maintained as compared with the conventional case. The present invention aims to solve such a problem.

[0004]

[Means for Solving the Problems]

 A deaeration valve for a futon storage bag according to the first invention of the present application has a proper fixing means at an appropriate position on the outer peripheral surface and is attached to a deaeration hole provided in the futon storage bag to remove the deaeration valve. It comprises a base body 1 forming a mouth for care, a lid body 2 screwed to a portion of the base body exposed to the outside of the storage bag, and a valve body 3 formed as a separate body, and has the following configuration. .. That is, the base body 1 has a partition wall 4 formed therein for blocking the inside and outside of the storage bag, and the partition wall 4 is provided with a ventilation port 5 for connecting the inside and outside of the storage bag. The upper surface of the lid 2 has a corresponding portion 20 that comes into contact with the suction port of the cleaner, and an appropriate number of parts that communicate with the inside of the lid 2 in a region surrounded by the periphery of the suction port of the cleaner on the corresponding portion 20. And holes 6. The valve body 3 is received in a space surrounded by the partition wall 4 of the base body 1 and the lid body 2, and the valve body 3 is in the space when the lid body 2 is loosened and stored. Negative pressure in the bag allows the air vent 5 to be sucked up to close the air vent 5, and the vacuum cleaner sucks the air into the hole 6 of the lid 2 and separates from the air vent 5. Is possible. When the lid body 2 is screwed and the lid body 2 is fastened to the base body 1, the lid body 2 presses the valve body 3 to the ventilation port 5 and keeps the ventilation port 5 closed. is there. The deaeration valve for a futon storage bag according to the second aspect of the present invention is a strong degassing valve that is received together with the valve body in the space surrounded by the partition wall of the base and the lid. An elastic body such as a spring rod 33 is urged toward the ventilation port. Next, a deaeration valve for a futon storage bag according to a third invention of the present application, when the lid body 2 is loosened from the base body 1 near the screwed portion of the base body 1 and the lid body 2, A regulation part 7 is provided to regulate the screwing of the lid 2 so as not to come off from the base body 1. Further, in the deaeration valve for a futon storage bag according to the fourth invention of the present application, the upper surface of the lid 2 is a bulge having a maximum diameter substantially at the center of the corresponding portion 20 and a maximum diameter smaller than the inner diameter of the suction port of the cleaner. It has a portion 22 and the hole 6 around the raised portion 22 or the raised portion 22.

[0005]

[Action]

 In the deaeration valve for a futon storage bag according to the first invention of the present application, which is provided with the above means, when the lid body 2 is loosened, the valve body 3 is drawn to the ventilation port 5 by the negative pressure in the storage bag. As a result, the ventilation port 5 is closed, and the vacuum cleaner sucks the air into the hole 6 of the lid 2 for deaeration. Therefore, after deaeration by suction of the vacuum cleaner, the lid body 2 is screwed and the lid body 2 is fastened to the base body 1 and the ventilation hole 5 is closed by the valve body 3 until the ventilation port 5 of the storage bag is closed. Blocks the air and prevents air from entering the storage bag. Further, in the deaeration valve for the futon storage bag according to the second invention of the present application, which has the above-mentioned means, the ventilation port 5 is reliably closed by the negative pressure in the storage bag due to deaeration and the biasing by the spring 33. Is. Further, in the deaeration valve for the futon storage bag according to the third invention of the present application, which is provided with the above means, by providing the regulating portion 7 for regulating the screwing of the lid body 2, when the lid body b is loosened, The lid b is not screwed more than necessary, and the lid b and the valve body 3 do not fall off the base body 1. Further, in the deaeration valve for the futon storage bag according to the fourth invention of the present application, which is provided with the above means, when the suction port of the cleaner is applied to the corresponding portion 20, the suction port is displaced from the corresponding portion 20. The raised portion 22 functions as a hit so that it does not exist.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a deaeration valve for a futon storage bag includes a base body 1 formed in a disk shape, a lid body 2 screwed to the base body 1, and a deaeration body surrounded by the base body 1 and the lid body 2. The main part is constituted by the valve body 3 housed inside the air valve. The configuration of each part will be described in detail in order.

The disk-shaped base body 1 has a short cylindrical screwing portion 10 formed at the center of the surface. The short cylindrical screwing portion 10 has one end connected to the base body 1 and the other end opening upward. Further, on the outer peripheral surface of the threaded portion 10, a threaded portion 11 that is threadedly engaged with a threaded portion 21 formed on the inner circumferential surface of the bottom portion of the lid body 2 which will be described in detail later is formed. A partition wall 4 forming a bottom portion is formed inside the base of the screwing portion 10. A tubular portion 13 is further formed in the center of the partition wall 4, and the inside of the tubular portion 13 serves as a ventilation port 5 penetrating from the top surface to the bottom surface of the partition wall 4.

The substrate 1 is attached to the degassing hole provided in the storage bag Z from the inside of the storage bag Z. At this time, the threaded portion 10 of the base body 1 to be mounted protrudes from the storage bag Z to the outside X. Although it is possible to fix the base body 1 to the storage bag Z by using a fixing means such as an adhesive, as shown in FIG. 1, the screwing portion 10 is attached to the upper surface of the base body 1 from the outside of the storage bag Z. It is also possible to mount the annular member 14 so as to surround the. In this case, the storage bag Z and the base body 1 may be fixed by an adhesive and the annular body 14 may be attached as a decorative surface.

On the back surface of the base body 1, a plurality of standing plates 12 are provided radially from the center of the base body 1. For example, it is formed on the back surface of the substrate 1 in a state as shown in FIG. The upright plate 12 is provided so that the futon inside the storage bag Z does not block the ventilation opening 5.

As described above, the lid body 2 is a cap in which the threaded portion 21 to be threadedly engaged with the threaded portion 11 of the threaded portion 10 is provided on the inner peripheral surface. The outer diameter of the upper surface of the lid body 2 is sufficiently larger than the inner diameter of the suction port W 1 of the vacuum cleaner. Further, a flat surface having no unevenness is formed on the upper surface of the lid body 2, and this surface forms a corresponding portion 20 with the suction port W of the cleaner. By forming the corresponding portion 20 that comes into contact with the suction port W of the vacuum cleaner as such a flat surface, the suction port W can be used regardless of its shape.

A raised portion 22 is formed at the center of the upper surface of the lid body 2. Further, a through hole 23 communicating with the inside of the lid 2 is formed at the center of the top of the raised portion 22. An appropriate number of holes 6 are formed near the body or base of the raised portion 22. In the present embodiment, as shown in FIG. 4, the hole 6 is arranged so as to surround the center of the raised portion 22. The through hole 23 is located right above the ventilation port 5 when the lid body 2 is screwed into the base body 1.

The above-mentioned raised portion 22 is such that the diameter of each portion from the top portion to the base portion is sufficiently smaller than the inner diameter of the suction port W of the cleaner, and both the raised portion 22 and the hole 6 are When the suction port W of the vacuum cleaner is applied to the corresponding portion 20, it is placed inside the periphery of the suction port W of the vacuum cleaner. In this way, the raised portion 22 enters the inside of the suction port W of the vacuum cleaner to function as a contact so that the suction port W of the vacuum cleaner does not shift in the horizontal direction.

As described above, the valve body 3 formed separately is housed in the internal space of the deaeration valve surrounded by the base body 1 and the lid body 2. The valve body 3 is a columnar body whose central axis extends vertically, and a collar-shaped portion 30 is formed on the body. An annular packing 31 made of an elastic material such as rubber is fitted around the body of the valve body 3 below the collar-shaped portion 30. The diameter of the valve body 3 below the brim-shaped portion 30 is set to a size that closes the ventilation port 5 at least when the packing 31 is fitted. It is also effective to form a brim-shaped inverted hook portion having a slightly larger diameter than the surroundings on the periphery of the bottom surface 32 of the body portion in which the packing 31 of the valve body 3 is fitted so as to prevent the packing 31 from coming off. The outer diameter of the upper portion (upper portion 34) of the body portion of the valve body 3 above the collar-shaped portion 30 is dimensioned so as to be loosely fitted in the through hole 23 of the lid body 2. The collar body 30 itself has an outer diameter larger than the inner diameter of the through hole 23, and when the valve body 3 is attached to the through hole 23 from the back surface of the lid body 2, the valve body 3 comes out above the through hole 23. It functions as a hit so that it does not exist. In FIG. 1 and FIGS. 2 and 3 which will be described later, a pressing spring 33 is attached to a portion of the body of the valve body 3 above the collar-like portion 30. The pressing spring 33 is for ensuring the operation of the valve body 3 described later, and is attached with a weak biasing force that does not hinder deaeration. The spring 33 may not be provided if unnecessary. Reference numeral 101 shown in FIGS. 1 to 3 denotes a contact when the valve body 3 is displaced to the rear surface side of the lid body 2, and stands upright outside the rib 33 in a cylindrical shape.

Next, a usage state of the deaeration valve shown in the embodiment of FIG. 1 will be described with reference to FIGS. 1, 2 and 3. First, the lid body 2 is loosened with respect to the base body 1, and at this time, the suction port W of the cleaner is brought into contact with the corresponding portion 20 of the lid body 2 (FIG. 1). In this state, the vacuum cleaner sucks. Due to the negative pressure received from the vacuum cleaner, the valve body 3 is drawn upward and the ventilation port 5 is opened. In this way, the air inside the storage bag Z is sucked from the ventilation port 5 through the hole 6 to the suction port W.

After completion of the deaeration, the suction port W of the vacuum cleaner is removed from the corresponding portion 20 of the lid body 2 (FIG. 2). At this time, the valve body 3 is pulled downward by the negative pressure inside the degassed storage bag Z and the spring 33 as necessary, and the ventilation port 5 is closed. The aforementioned spring 33 is effective as long as it assists the biasing of the valve body 3 toward the ventilation port 5. However, this spring 33 may not be provided if unnecessary. On the other hand, the negative pressure inside the degassed storage bag Z normally causes the valve body 3 to be sufficiently attracted.

After removing the suction port W of the vacuum cleaner from the corresponding portion 20 of the lid body 2, the lid body 2 is rotated to complete the tightening of the base body 1 (FIG. 3). In this state, the valve body 3 is pressed against the back surface of the lid body 2, and the ventilation port 5 is completely shut off.

Another embodiment will be described with reference to FIG. This is an improvement so that the upper portion 34 of the valve body 3 of the above-described embodiment does not project to the surface of the lid body 2. More specifically, a receiving portion 25 that receives the upper portion of the valve body 3 is formed on the back surface of the raised portion 22 of the lid body 2. The receiving portion 25 has a depth at least in which the valve body 3 slides to open and close the ventilation port 5. Therefore, the upper portion 34 of the valve body 3 does not project to the surface of the lid body 2 due to the vertical movement of the valve body 3. In FIG. 6, the center 35 of the raised portion 22 of the lid body 2 is closed, but it is possible to form the lid body 2 in a state in which this center 35 is opened. In this case also, the valve body The upper part 34 of 3 does not project outward from this center 35. Providing a suitable reverse hook 36 on the upper edge of the upper portion 34 of the valve body 3 is effective because the valve body 3 does not drop off from the lid body 2 even when the lid body 2 is loosened from the base body 1. .. At this time, the peripheral edge 37 of the lower opening portion of the receiving portion 25 is folded to the valve body 3 side so as to be caught by the above-mentioned reverse hook 36.

A configuration for preventing the lid body 2 from falling off when the lid body 2 is loosened from the base body 1 will be described with reference to FIG. 7. No screw is formed at the lowermost portion of the threaded portion 21 of the lid body 2, and a space 26 having an inner diameter larger than the maximum inner diameter of the threaded portion 21 is formed. The inner peripheral surface of the space portion 26 is formed by a portion where the distance from the center position of rotation of the lid 2 gradually decreases, that is, a portion (peripheral surface 28) that gradually protrudes into the lid 2 and a step portion 29. The raised portion 27 is provided (FIG. 8). On the other hand, on the surface of the base body 1, a projection (hereinafter referred to as a restriction portion 7) is formed near the base portion of the screwing portion 10 so that at least the tip thereof enters the space portion 26 of the lid body 2. The regulation portion 7 has flexibility.

8 and 9 are schematic cross-sectional views around the space 26 of the lid 2. The relationship between the regulation unit 7 and the lid body 2 will be described. First, when the lid body 2 is loosened with respect to the base body 1 in a degassable state, the regulation unit 7 is provided inside the lid body 2 (the space portion 26). ), It is located farthest from the central position of the lid body 2 (FIG. 8). At this time, as shown in FIG. 8, the restricting portion 7 is located at a position facing the step portion 29. Therefore, even if it is attempted to loosen it further (arrow A), the regulation portion 7 hits the step portion 29 of the raised portion 27 and the lid body 2 cannot rotate.

Next, by rotating the lid body 2 in the opposite direction (arrow B), the lid body 2 is fastened to the base body 1. FIG. 9 shows an example of this tightened state.

As described above, by providing the regulating portion 7 and the like, when the lid body 2 is loosened from the base body 1, the lid body 2 does not come off from the base body 1, which is convenient. Such a structure for preventing the lid body 2 from falling off can be implemented in both the deaeration valve shown in FIG. 1 and the deaeration valve shown in FIG.

[Effect of the device]

By implementing the deaeration valve for the futon storage bag according to the first invention of the present application, the valve can be sealed while maintaining the airtightness after driving the vacuum cleaner without requiring any attachment. Is. Further, the airtightness is further improved by the deaeration valve for the futon storage bag of the second invention of the present application. Further, by implementing the deaeration valve for the futon storage bag according to the third invention of the present application, when the lid body 2 is loosened, the lid body 2 is not screwed more than necessary, and the lid body 2 and the valve body 3 are the base body 1 Never fall out of. Furthermore, by implementing the fourth invention of the present application, there is no fear that the suction port of the vacuum cleaner will be displaced from the corresponding portion 20 during deaeration.

[Brief description of drawings]

FIG. 1 is a schematic end view showing a deaeration state of an embodiment of the present invention.

FIG. 2 is a schematic end view showing the deaeration completion state of the embodiment of the present invention.

FIG. 3 is a schematic end view showing a closed state of the lid body 2 of the embodiment of the present invention.

FIG. 4 is an overall plan view of the above embodiment of the present invention.

FIG. 5 is an overall bottom view of the embodiment of the present invention.

FIG. 6 is a schematic end view of another embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of still another embodiment of the present invention.

8 is an explanatory view of a main part showing a state in which a lid body 2 of the embodiment of FIG. 7 of the present invention is loosened.

FIG. 9 is an explanatory view of the essential parts showing a state in which the lid body 2 of the embodiment of FIG. 7 of the present invention is closed.

FIG. 10 is a schematic end view of a deaeration valve for a futon storage bag, which the present invention intends to improve.

FIG. 11 is a schematic end view showing a sealed state of a deaeration valve for a futon storage bag, which the present invention intends to improve.

[Explanation of symbols]

 1 Base 2 Lid 3 Valve 4 Partition 5 Vent 6 Hole 7 Regulator 20 Corresponding part

Claims (4)

[Scope of utility model registration request] 1. A base having an appropriate fixing means at an appropriate position on the outer peripheral surface and serving as a deaeration port by being attached to a deaeration hole provided in a storage bag such as a futon, and a storage of this base. The base body is provided with a lid body screwed into a portion exposed to the outside of the bag and a valve body formed separately, and the base body has a partition wall formed therein for blocking the inside and the outside of the storage bag. The partition is provided with a ventilation port that connects the inside and the outside of the storage bag, and the upper surface of the lid has a corresponding portion that comes into contact with the suction port of the cleaner, and the cleaner on the corresponding portion has a corresponding portion. An appropriate number of holes communicating with the inside of the lid is provided in a region surrounded by the periphery of the suction port, and the valve body is received in a space surrounded by the partition wall of the base and the lid body. When the lid is loosened, it is in the above space and is sucked to the ventilation opening by the negative pressure in the storage bag. It can be closed, and it can be pulled to the hole of the lid by suction of a vacuum cleaner and separated from the ventilation hole. The lid was screwed and the lid was fastened to the base body. At this time, the lid body presses the valve body against the ventilation port, and maintains the ventilation port in a closed state. 2. The valve body is attached to a ventilation opening in a space surrounded by a partition wall and a lid of a base body by an elastic body such as a ridge having a strength that does not interfere with deaeration received together with the valve body. The deaeration valve for a futon storage bag according to claim 1, wherein the deaeration valve is energized. 3. A regulating portion is provided near the screwed portion between the base and the lid so as to prevent the lid from coming off the base when the lid is loosened from the base. The deaeration valve for a futon storage bag according to claim 1 or 2, wherein the deaeration valve is provided. 4. The upper surface of the lid has a raised portion whose maximum diameter is smaller than the inner diameter of the suction port of the cleaner at approximately the center of the corresponding portion, and the raised portion or the periphery of the raised portion has the above-mentioned diameter. Claim 1 characterized in that it has a hole
A deaeration valve for a futon storage bag according to the item 3 or 3.