JPH04135432U - sealed storage bag - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the structure of the intake valve of a sealed storage bag and to improve the sealing performance of the opening of the sealed storage bag. [Configuration] The intake valve V has the flange 2 of the cylinder body 1 in the storage bag P.
The cap 4 is sealed by screwing in the cap 4 through the packing 3. The intake air is supplied through the valve plate 5 inside the cylinder body 1.
This is done by pushing down with the intake pipe H. After inhalation, the valve plate 5 is pushed back by the stored object A and sealed. This intake valve V is sealed by double sealing with a valve plate 5, packing 3, and cap 4. The opening of the storage bag P has a plurality of sealing weld lines to improve its sealing performance.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention can be applied to textile products such as futons and sweaters, or fresh foods such as vegetables, etc. Regarding the sealing structure of the intake valve and opening of the bag for storing the product in a sealed state. It is.

0002

[Conventional technology and its issues]

For example, today, textile products such as futons and sweaters are bulky, so they are compressed and sealed for storage. Payment is being made. Also, avoid contact with air for fresh foods such as vegetables and fish. It is packaged in sealed packaging to maintain its freshness.

0003 Conventionally, there is a bag for this storage (packaging) as shown in Figure 2. Bag P is made of a sheet made of synthetic resin such as vinyl chloride, and after putting the stored items in it, it is The mouth of the valve is sealed with a welding wire a (see Examples below), and air is taken in through the intake valve V.

0004 This conventional intake valve V has a flange 1 hermetically bonded to a bag P, as shown in FIG. A rotatably cylindrical knob 11 is provided on the 0, and the knob 11 and the flange 10 are each By forming corresponding holes 12 and aligning the holes 12, the intake port is opened. , the structure is sealed by shifting. In the figure, 13 is a cap.

[0005] However, in this conventional intake valve V, the rotation of the knob 11 with respect to the flange 10 is Because of the structure, the valve is complex and costly, so It is desired to reduce costs by providing a simple structure. Also, flange 10 and knob There is also a risk of air intrusion due to insufficient adhesion of No. 11.

[0006] On the other hand, when sealing the bag opening with a weld line a, conventionally the weld line a is a single strip. Therefore, even if the width of this weld line a is widened, the weld will peel off from the side edge of the weld line a. Once it occurs, it easily spreads over the entire width, causing air leakage.

[0007] This invention takes into account the above points, and the first problem is to simplify the intake valve structure. The second challenge is to improve the sealing performance of the bag opening.

[0008]

[Means to solve the problem]

In order to solve the first problem mentioned above, in this invention, a sealing seal is provided at one end of the cylindrical body. It has a flange that is hermetically bonded to the storage bag, and the other end of the cylinder has a key inserted through the packing. The cap is screwed into the cylinder, and there is a part inside the cylinder that can be bent from the other end towards one end. The structure was such that a valve plate was provided to seal the valve.

[0009] In order to solve the second problem, this invention uses multiple weld lines. It is.

0010

[Effect]

The intake valve according to this invention configured in this way can be used to store items in the storage bag as in the conventional case. After putting the bag in, its mouth is sealed, and air is sucked into the bag through this valve to seal it. Konoto Remove the cap and packing, and insert the intake pipe of a vacuum cleaner or other intake device into the cylinder. Then, inhale while pressing down on the valve plate at its tip. After completing the intake, remove the intake pipe. For example, because the bag is in close contact with the stored items, the valve plate is pushed back by the stored items and the valve plate is pushed back. Seal inside the body. Next, screw in the cap through the packing, and then attach the valve plate and Complete the sealing by double sealing with packing and cap.

[0011] In addition, when there are multiple weld lines at the bag opening, it is normal for the side edges of the weld line to start peeling. Because air leakage does not occur easily, the peeling action must be controlled by the weld line. The more obstacles you have to overcome, the more likely it is that air leaks will occur.

0012

【Example】

FIG. 1 shows an embodiment of an intake valve V according to this invention, and this intake valve V has a storage bag P It is a synthetic resin molded product made of a material with good adhesiveness (bondability). For example, storage bag If P is vinyl chloride-based or polyethylene-based, use materials of the same type.

[0013] The intake valve V has a flange 2 at one end of the cylindrical body 1, and a packing 3 is interposed at the other end. Then, the cap 4 is screwed on. The flange 2 is hot-fused to the intake port Q of the storage bag P. It is airtightly adhered by known means such as adhesive or glue. The adhesive surface is as shown in the diagram. It may be the lower surface of the flange 2, but it may also be the upper surface. Inside the cylindrical body 1 is bent toward the bag P side. A bendable valve plate 5 is provided, and the shape, number, position, etc. of this valve plate 5 can be sealed. Any of these may be used and is determined as appropriate. At this time, the valve seat where the valve plate 5 hits inside the cylinder body 1 can be provided.

[0014] As shown in FIG. 1(b), this intake valve V is connected to the intake pipe H of a vacuum cleaner or the like by inserting it into the cylinder body 1. When inserted, the valve plate 5 bends downward, and when the intake pipe H is inserted, the valve plate 5 is inserted into the storage bag P and stored. A gap C is created between objects A. Inhale in this state. When the intake is finished, remove the intake pipe H. Since the storage bag P is in close contact with the stored item A, the valve plate 5 is moved by the stored item A. It is pushed back and seals the inside of the cylindrical body 1. Next, the cap 4 is inserted through the packing 3. Screw in and seal with a double seal using the valve plate 5, packing 3, and cap 4. Complete the stop.

[0015] During this action, as shown in Figure 1(b), the tip of the intake pipe H is shaped like a truncated cone, and the slope When the intake hole h is formed, air is smoothly sucked from the gap C through the intake hole h. The intake hole h of the intake pipe H can be formed only on the slope thereof. Intake of storage bag P The mouth Q can be formed by inserting and cutting the intake pipe H.

[0016] On the other hand, the sealing means for the opening of the storage bag P is shown in FIGS. 2 to 7, and first, in FIG. A presser rod 20 made of heat-resistant plastic shown, its receiving material 21, and paper shown in FIG. Prepare the presser foot 22. In FIG. 7, r is a fold line.

[0017] With the presser rod 20 and the receiving material 21, the storage bag P is pressed as shown in FIGS. 3 and 4. Hold the opening and use the presser 22 assembled along the fold line r as shown in Figure 4 as a guide. When the iron R is moved with the storage bag P interposed on the receiving material 21, as shown in Fig. 2. , two weld lines a are produced. This weld line a is the entire length of the opening in the width direction (the entire width direction of the bag P). After the welding action is completed, the presser bar 20 and the receiving material 21 are removed. child By repeating the above steps, the required number of weld lines a can be obtained. The presser 22 is Prevent burns caused by iron R.

[0018] As shown in Figure 5, the opening sealed with the plurality of welding lines a should be tightly sealed between the welding lines a. A sealed intermediate air layer b is formed. Air leakage in this state is caused by the side edge a of each weld line a. This is done by peeling off the weld line a, which is much less likely to occur than peeling within the weld line a. vinegar In other words, the side edges a' must be peeled off for the number of weld lines a to prevent air leakage. It is difficult for this to occur.

[0019] In order to perform the storage function using the intake valve V and the sealing means, first, remove the intake valve V. For example, store a futon in the attached storage bag P, and open the opening of the storage bag P as shown in Figure 4. Then, temporarily seal with the presser bar 20 and presser mold 21 (do not perform welding with iron R). state), the above-mentioned intake action is performed. After this suction action is completed, the iron R The final seal is carried out by wearing it. This main sealing can also be carried out before the inhalation operation.

[0020] This idea is applicable not only to textile products such as futons and sweaters, but also to vegetables, fish, etc. Of course, it can also be used for the storage bag P. In addition, multiple lines of weld line a are based on this idea. Not only the storage bag P equipped with such an intake valve V, but also various intake valves of the conventional intake valve V shown in FIG. It can also be used for a storage bag P with or without a vent valve.

[0021]

[Effect of the idea]

Since this invention is constructed as described above, the structure of the intake valve is simplified and the cost is reduced. It is possible to reduce the

[0022] Furthermore, since there are multiple weld lines, there is also the advantage that the sealing performance is improved.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of an embodiment, with (a) showing before and after inhalation, and (b) showing during inhalation.

[Figure 2] Perspective view of storage bag

[Figure 3] Illustration of sealing action

[Figure 4] Diagram explaining sealing action

[Figure 5] Schematic diagram of the opening of the storage bag

[Figure 6] Perspective view of presser bar and presser die

[Figure 7] Plan view of presser

[Fig. 8] Perspective view of conventional example

[Explanation of symbols]

1 cylinder 2 flange 3 Packing 4 Cap 5 Valve plate a Welding line A Storage items P storage bag Q Intake port H Intake pipe h Intake hole V intake valve

Claims (2)

[Scope of utility model registration request] Claim 1: One end of the cylindrical body has a flange that is hermetically bonded to a sealed storage bag, a cap is screwed onto the other end of the cylindrical body with a packing interposed therebetween, and a cap is screwed into the cylindrical body from the other end toward one end. An intake valve for a sealed storage bag, which is provided with a valve plate that seals the inside of a bendable cylindrical body. 2. A sealed storage bag provided with an intake valve according to claim 1, characterized in that the opening of the bag is sealed by a plurality of parallel welded lines at required intervals along the entire length of the opening edge of the opening. Sealed storage bag.