JPH01226572A - Sealed bag containing mini gas-cylinder - Google Patents

Abstract

PURPOSE:To obtain a sealed bag in which the title gas cylinder is contained in a simple structure, high safety, light and compact, freely portable and easily handing, by providing a weakened part in which the sealed bag can be opened from the outside for a mini gas-cylinder and by forming the bag to have enough volume to contain all gas emitted from the mini gas-cylinder. CONSTITUTION:In a sealed bag in which a mini gas-cylinder is contained, weakened parts 12 comprising scored lines in the peripheral directions are provided around the surface of just the middle point of the full cylinder length. The sealed bag 20 is kept to be in a completely sealed condition by the heat- sealed part 21 at the periphery. The bag is large enough so as the gas of the mini gas-cylinder 10 can be all contained almost at an ordinary pressure. When the mini gas-cylinder 10 is unsealed, the sealed bag 20 is forced to open and the cylinder is forced to fold by keeping the weakened parts 12 comprising scored lines outwardly with the external force at both ends 11 of the cylinder. As a result, external forces are concentrated in this part and hence the bag is easily broken and a part of the mini gas-cylinder 10 is broken and then the internally compressed gas is instantaneously filled in the sealed bag 20.

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a sealed bag containing a cylinder.

(Prior art) The simplest way to inflate cushioning air bags for packaging, lifebuoy bags, life vests, air mats, air bag-type umbrellas, etc. is to use human exhalation, followed by manual or foot pressure. For pumps that are highly urgent, small metal gas cylinders or combustion gas from explosives are used.

(Problems to be solved) However, those using exhalation require time to inflate the sealed bag, those that use an air pump are inconvenient to carry, and those that use explosives require advanced technology. It is dangerous and costly.

Therefore, this invention solves the above-mentioned problems of the prior art, and has a simple structure, high safety, is lightweight and not bulky when not in use, is convenient to carry, easy to handle, easy to dispose of used items, and is inexpensive. The purpose is to provide the market with cylinder-enclosing bags.

(Means for Solving the Problems) In order to achieve the above-mentioned problems, the present invention comprises a mini cylinder having a strength comparable to that made of aluminum or plastic and containing at least one compressed gas, and a sealed bag enclosing the mini cylinder. A fragile part is formed in a part of the sealed bag that can be opened by an external force of about human power from outside the sealed bag, and the sealed bag is large enough to contain the entire amount of gas released from the mini cylinder. It is a sealed bag containing a mini cylinder.

In order to achieve the above object, the material of the mini-cylinder may be one of the group consisting of aluminum and plastic.

In addition, in order to achieve the above-mentioned problem, the compressed gas is
In some cases, it is characterized by being 0 to 150 kg/cm2.

Further, in order to achieve the above-mentioned object, the mini cylinder may be characterized in that its volume is 50 to 150 cc.

Further, in order to achieve the above-mentioned object, the mini-cylinder has a pipe shape with a diameter of 5 to 15 m, and both ends thereof are closed by a sealing means selected from the group consisting of flat welding, flat adhesion, a sealing plug, and a cap. Sometimes it is characterized by being something.

In order to achieve the above object, the weakened portion may be one of the group consisting of dotted depressions, circumferential cuts, slanted or spiral cuts, and thinned portions.

Further, in order to achieve the above object, the fragile portion may be formed by closing the end face of the mini-cylinder with a thin, easily breakable sealing plate.

Further, in order to achieve the above-mentioned object, the sealed bag may be a bag equipped with a check valve that can be opened from the outside and not opened by internal pressure.

Further, in order to achieve the above-mentioned problem, the mini-cylinder may be used as a core and wound into a sealed bag or roll.

The gas sealed in the mini-cylinder used in this invention may be air, carbon dioxide gas, nitrogen gas, oxygen gas, etc., depending on the purpose.

As the material for the mini-cylinder, polyethylene, polypropylene, polycarbonate, polyamide, polystyrene, polyvinyl chloride, or a laminate thereof, which has high gas-tightness, is used. Alternatively, the material of the sealed bag may be a Fluminium deep-drawn molded product, which may be selected as appropriate depending on the purpose of the sealed bag, but for example, sheets of polyethylene, polypropylene, polyamide, polyvinyl chloride, etc. The above laminated sheet backing cloth, laminated leather, rubberized cloth, etc. are used.

These materials should be selected appropriately depending on the purpose. For example, it is best to use highly airtight and durable materials for lifebuoy bags and life vests, but for air bag type vehicles that are used for a short time, it is better to use materials that are not as airtight. Sometimes I use something that is not expensive.

(Operation and method of use) To use the product of this invention, first, when carrying it around, roll up a sealed bag around the mini cylinder and put it in a pocket of clothes or a corner of a bag, or put it on the dash board of a car. Carry it with you.

On the other hand, when distributing or storing the product as a product, a large number of the rolled or flat products of the present invention are placed in a cardboard box or the like.

Next, to open the mini cylinder, open the sealed bag, grasp both ends of the mini cylinder with both hands from the outside through the film of the sealed bag, and apply bending or twisting force to the mini cylinder, or Hold one end with one hand and press the other end against a part of the desk, floor, body, etc. to apply a similar external force to the mini-cylinder, or apply external force directly to the fragile part.

If this is done, external force will concentrate on the weakened portion of the mini-cylinder, causing that portion to break. The gas in the mini cylinder is then discharged into the sealed bag, and the sealed bag is inflated in a very short time.

To release the gas inside the sealed bag, a part of the sealed bag is ruptured, or if a check valve is provided, it is opened from the outside to release all or the required amount of the gas inside.

Used items of this invention can be disposed of in the same way as normal household waste, such as in a trash can, or if they have non-flammable parts, they can be treated as non-flammable materials.

(Effects) The product of the present invention, which is configured and operates as described above, solves the problems of the prior art, has a simple structure, is highly safe, is lightweight and not bulky when not in use, and is easy to distribute. Used materials that are convenient for storage, transportation, and handling can also be treated as normal domestic waste or noncombustible materials. Moreover, it is inexpensive and highly practical.

The compressed gas pressure of the mini cylinder is 100 to 150 kg.
When /a# is used, the size of the mini cylinder is not very large, and the jetting dynamic pressure when the mini cylinder is opened is not very strong, especially since it is discharged into a sealed bag.
It is safe because the ejected air does not directly hit the handler and the mini cylinder does not fly away due to the recoil.

Further, when the volume of the mini cylinder is 50 to 150 cc, it is convenient to carry in a clothes pocket or a handbag.

Further, the mini cylinder has a pipe shape with a diameter of 5 to 15 mm, and both ends thereof are closed by a sealing means selected from one of flat welding, flat adhesion, a seal plug, a cap, etc. As is clear from the calculation formula, since the diameter is smaller, the wall thickness of the mini cylinder can be made thinner.゛Furthermore, if the weakened portion is one of the group consisting of dot-like depressions, circumferential cuts, inclined or spiral notches, and thin-walled portions, the load will be concentrated on these weakened portions due to external force. You can easily open the mini cylinder.

Fragile parts include those sealed with a thin-walled breakable sealing plate on the end of the mini-cylinder.The end of the mini-cylinder is crushed and opened, but the tip attached to the mini-cylinder is sealed in advance. The bag can be opened by pressing from outside.

Further, if the sealed bag is opened from the outside and is equipped with a check valve that cannot be opened by internal pressure, an arbitrary amount of the gas inside can be released, and the remaining gas can be further stored.

Furthermore, if the mini-cylinder is used as a core and wrapped in a sealed bag or roll, there is less risk of the sealed bag becoming dirty or damaged during storage.

(Example) This invention will now be described based on a typical example shown in the drawings.

10 is a minibojibe filled with compressed gas, and the material is as follows:
Use highly gas-tight polyethylene, polypropylene, polycarbonate, polyamide, polystyrene, polyvinyl chloride, or a laminate thereof. When increasing the required strength, glass fiber, carbon fiber 60, or other engineering plastics are used. In addition, aluminum molded products may be used as the material for the mini-cylinder. If the material has gas-tightness problems, the surface layer 13 should be made of a material with high mechanical strength, and the ML4 inside the mini-cylinder should be lined with a material with high airtightness, such as EVAL, polyester, or vinylidene chloride, by appropriate means such as coating. You can also leave it there. It is often better to form the lining at the same time as the mini-cylinder is extruded.

The shape is extrusion molded or blow molded and the cross section is a perfect circle with an inner diameter of 7 mm, an outer diameter of ioam, and a length of 20 mm.
The pipe is 0 m long, and both ends 11 are flattened and sealed by welding as shown in Figs. 1 and 4, and the volume is approximately 7.0 m.
It is 6cc. One or two notches, which are weakened portions 12 in the circumferential direction, are provided on the circumferential surface of the mini-cylinder 10 at the exact midpoint of its length.

In the above example, the cross-sectional shape of the mini-cylinder 10 was shown to be a perfect circle, but it may be oval, or the outer circumferential surface may be polygonal as long as the inner circumferential surface is rounded.

When the mini cylinder internal pressure is 100 to 150 kg/aJ,
In the case of the above size, the wall thickness of the pipe is 1.5 to 2II
A rating of II+ is sufficient.

To determine the wall thickness mentioned above, the wall thickness is t, and the stress of the material (plastic or aluminum) is fkg/d・internal pressure p
If kg/ffl and mini cylinder inner diameter dan are used, it can be easily calculated using the formulas t=p and d/2f.

Reference numeral 20 denotes a sealed bag, the periphery of which is completely sealed by a welded part 21, and is sized to accommodate all the gas in the mini cylinder 10 at normal pressure. For example, in the case of liquefied carbon dioxide, this is a bag containing about 3.5Q. The material of the sealed bag may be selected as appropriate depending on the purpose of the sealed bag, but examples include sheets of polyethylene, polypropylene, polyamide, polyvinyl chloride, laminated sheets of two or more of these, laminated leather with lining cloth, Use rubberized cloth, etc.

These materials should be selected appropriately depending on the purpose.For example, it is best to use highly airtight and durable materials for lifebuoy bags and life jackets, while materials that are not as airtight are recommended for use in air bladder type vehicles that are used for short periods of time. Sometimes we use something that is not very strong.

In the illustrated example, a check valve 22 is attached to the periphery of the sealed bag 20, which can be removed from the outside and does not open due to internal pressure.

If the volume of the sealed bag 10 is large depending on the purpose of use, two or more mini-cylinders 10 or longer mini-cylinders 10 are sealed in the sealed bag 20.

The closure of both ends 11 of the mini-cylinder 10 is not limited to the above-mentioned example, and the present invention is the same even if the ends 11 of the mini-cylinder 10 are sealed by caulking a stopper 15 as shown in FIG. 5 or a cap 16 as shown in FIG.

Further, as shown in FIG. 7, the body of the mini-cylinder 10 may be made of plastic, and one end surface may be sealed with an easily breakable sealing plate 17 made of aluminum or the like with a caulking ring 18. The invention is also the same even if the mini-cylinder 1o is opened by pressing the previously attached sharp protrusion 19 against the sealing plate 18 and breaking it.

The mini cylinder 10 is shown as being enclosed in a sealed bag 20, but this mini cylinder 1 is enclosed in a part of the sealed bag 20.
Even if the value is fixed at 0, the present invention is the same.

(Use of Example) When unused or stored, the sealed bag 20 is folded or rolled into a roll using the mini cylinder 10 as a core, as shown in FIGS. 2 and 3. When there is no need to fold it, store the sealed bag 2o in an unfolded state as shown in FIG.

When opening the mini cylinder 10, open the sealed bag 20 as shown in Fig. 1, and open the mini cylinder 1 from the outside of the sealed bag 20.
When an external force is applied to both ends 11 of the mini cylinder 10 and the mini cylinder 10 is bent with the fragile part 12 formed by the notch on the outside, the external force concentrates on this part and easily breaks, causing the mini cylinder 1 to bend.
A part of the bag 20 is broken and the internal pressure gas fills the sealed bag 20 almost instantaneously (about 1 second).

(Effects of the Embodiment) The product of this embodiment constructed and operated as described above exhibits the effects of the present invention described above.

Therefore, in addition to lifebuoy bags and life jackets, by keeping the gas in oxygen or air in packaging-like cushioning materials, air bag-shaped umbrellas, or mini cylinders, it is possible to use them in the event of a fire or a toxic gas leak accident at a chemical factory. It can be used to supply oxygen or air to assist breathing when escaping from toxic gas areas, or for oxygen inhalation during hospitals, mountain climbing, and sports. In this case, if the check valve 22 is provided, the necessary amount of gas inside can be discharged, and the gas inside the sealed bag 20 can be used effectively.

For products in which two or more mini cylinders 10 are sealed in a sealed bag 20, a large sealed bag 20 can be used, and the mini cylinders 10 can be opened almost simultaneously, or if necessary, they can be opened at different times over time. It can be opened automatically, further expanding its uses.

If the mini-cylinder 10 is made of plastic, it can be incinerated after use since the sealed bag 20 and the plastic bag 20 are also made of synthetic resin.

When the mini cylinder 1o is made of aluminum, it can be disposed of in the same way as a regular beer can.

(Experiment example) Experiment example 1 The type of gas is oxygen gas, the inner diameter d- of the mini cylinder 10
10mm+, wall thickness t=2mm, length 200m, weak part 1
2 has a depth of 0.1 mm, a circumferential length of 44 nwn,
The material is polyamide (registered trademark Tsubamitsu 1020A7 manufactured by Mitsubishi Kasei Corporation), and after filling with 150 kg/d of gas.
Although it was left at room temperature for months, the gas pressure was still 149 kg.
/ad, open this and about 1 2.250cc bag
I was able to inflate it in seconds.

Experimental Example 2 The type of gas was carbon dioxide, filled with 150 kg/a (filled with
It liquefies during filling and is filled in a liquid gas state. Regarding the other mini cylinders 1o, the conditions were the same as in Experimental Example 1, and the pressure after being left in the chamber for 6 months after filling was 148 kg/
Co? I was able to open mini cylinder 10 and inflate a 6.600cc bag.

[Brief explanation of the drawing]

The drawings show typical embodiments of the invention,
Figure 1 is a perspective view of the sealed bag in an expanded state, Figure 2 is a side view of the sealed bag in a folded state, Figure 3 is a side view of the sealed bag rolled up, and Figure 4 is a side view of the sealed bag in a rolled state. 5 and 6 are partial longitudinal side views showing other aspects of both ends of the mini-cylinder, and FIG. 7 is a longitudinal sectional view of one end of the mini-cylinder in which a weakened portion is formed on the end face of the mini-cylinder. FIG. Main symbols in the diagram 10... Mini cylinder 11... Both ends 12.
... Weak part 2o ... Sealed bag 22 ...
··non-return valve. Patent applicant Taiyo Shokai Co., Ltd.

Claims (1)

[Scope of Claims] 1) It consists of a mini-cylinder made of aluminum or plastic and having a strength equivalent to that of at least one compressed gas, and a sealed bag enclosing the mini-cylinder, and the mini-cylinder is filled with human power from outside the sealed bag. A sealed bag enclosing a mini-cylinder, characterized in that a fragile part that can be opened by external force is formed in a part thereof, and the size of the sealed bag is large enough to accommodate the entire amount of gas released from the mini-cylinder. 2) The mini cylinder enclosing sealed bag according to claim 1, wherein the material of the mini cylinder is one of the group consisting of aluminum and plastic. 3) The compressed gas is 100 to 150 kg/cm^2
The sealed bag enclosing a mini-cylinder according to claim 1, characterized in that: 4) The mini cylinder enclosing sealed bag according to claim 1, wherein the mini cylinder has a volume of 50 to 150 cc. 5) A patent characterized in that the mini cylinder has a pipe shape with a diameter of 5 to 15 mm, and both ends thereof are closed by a sealing means selected from the group consisting of flat welding, flat adhesion, a seal plug, and a cap group. A sealed bag enclosing a mini cylinder according to claim 1. 6) The mini cylinder enclosing sealed bag according to claim 1, wherein the weakened portion is one of the group consisting of dot-like depressions, circumferential cuts, slanted or spiral cuts, and thin-walled portions. 7) The mini-cylinder enclosing sealed bag according to claim 1, wherein the fragile portion is formed by closing the end face of the mini-cylinder with a thin, easily breakable sealing plate. 8) The sealed bag enclosing a mini-cylinder according to claim 1, wherein the sealed bag is a bag equipped with a check valve that can be removed from the outside and not opened by internal pressure.