WO1997006054A1 - Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme - Google Patents

Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme Download PDF

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Publication number
WO1997006054A1
WO1997006054A1 PCT/JP1995/001559 JP9501559W WO9706054A1 WO 1997006054 A1 WO1997006054 A1 WO 1997006054A1 JP 9501559 W JP9501559 W JP 9501559W WO 9706054 A1 WO9706054 A1 WO 9706054A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
gas
air bag
chamber
closed
Prior art date
Application number
PCT/JP1995/001559
Other languages
English (en)
Japanese (ja)
Inventor
Yukio Yoshikawa
Shunsuke Matsuoka
Original Assignee
Grand Bleu Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grand Bleu Inc. filed Critical Grand Bleu Inc.
Priority to AU31912/95A priority Critical patent/AU3191295A/en
Priority to PCT/JP1995/001559 priority patent/WO1997006054A1/fr
Priority to KR1019970702170A priority patent/KR970706168A/ko
Priority to EP95927975A priority patent/EP0782954A1/fr
Publication of WO1997006054A1 publication Critical patent/WO1997006054A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/18—Air supply
    • B63C11/186—Mouthpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/18—Air supply
    • B63C11/22—Air supply carried by diver
    • B63C11/24—Air supply carried by diver in closed circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C2011/027—Shells for diving equipment, i.e. substantially rigid housings or covers, e.g. streamlined shells

Definitions

  • the exhaled gas that has been recovered from a mouthpiece is regenerated by passing it through a carbon dioxide adsorbing device, and the regenerated gas is supplied from a respiratory gas cylinder.
  • the present invention relates to a semi-closed respirator configured to supply a constant flow of newly inspired gas to a mouthpiece as inspired gas and exhaust excess gas to the outside. More specifically, the present invention relates to an air bag which is arranged as a buffer for respiration in such a device and stores respiratory gas.
  • Diving respirators are generally classified into two types: open respirators and closed or semi-closed respirators.
  • open respirators all gas once breathed is discharged out of the apparatus, and in a closed-type or semi-closed-type respiratory apparatus, a device that can rebreath the breathed gas is built in. ing.
  • closed and semi-closed respirators use compressed gas as the source of respiration, similar to the open type, but have the same weight of gas regardless of ambient pressure. Breathed. Therefore, in the closed type and semi-closed type, the consumption of respiratory gas is constant regardless of the depth. For this reason, the amount of respiratory gas to be carried is significantly smaller than that of the open type, and by changing the mixing ratio of the respiratory gas, it is possible to dive for a long time to a depth that is not possible with the open type. it can.
  • closed or semi-closed respirators have the advantage of being lighter in weight and capable of deep diving for a longer time than open respirators.
  • conventional closed and semi-closed respirators have been developed for special diving and military purposes, so they have only minimal safety mechanisms and are relatively prone to emergencies. There is no mechanism to deal with the situation. For this reason, the use of these devices required considerable thorough training, and leisure divers could not use them easily.
  • An object of the present invention is to provide a semi-closed respirator in which an air bag that is arranged as a buffer for respiration and stores respiratory gas is improved and manufactured. And to facilitate replacement. Disclosure of the invention
  • the air bag of the semi-closed breathing apparatus is characterized in that it is a seamless, integrally molded article formed of a synthetic resin. According to the present invention, since the airbag does not have a seam unlike the conventional airbag, it is not necessary to inspect the strength of the seam and the like, and the production management is simplified.
  • the breathing gas circulation port of the airbag has a screw-in type detachable structure. Therefore, the replacement work can be easily performed. In other words, when a mold or the like needs to be exchanged, it can be easily exchanged for a new one.
  • replacement since replacement is easy, for example, air bags having different capacities can be prepared according to the difference in the vital capacity of the user, and the optimum air bag can be installed according to the user.
  • the airbag is formed from urethane resin.
  • a urethane resin By using a urethane resin, the tear strength is higher than that of a rubber material generally used in the past, so that durability and the like can be improved.
  • the airbag is formed by a blow molding method. If this molding method is adopted, stable size and high mass productivity can be realized.
  • FIG. 1 is an external view of a semi-closed breathing apparatus to which the present invention is applied.
  • FIG. 2 is a schematic configuration diagram showing the internal structure of the device of FIG.
  • Fig. 3 shows the expiratory airbag incorporated in the device of Fig. 1 It is a figure, (a) is the front view, (b) is the partial side view seen from the orthogonal direction.
  • FIG. 4 is a view showing a regular assembly attached to the apparatus of FIG. 1, (a) is a side view thereof, and (b) is a longitudinal sectional view thereof.
  • FIG. 5 is a schematic longitudinal cross-sectional view showing a conventional regire. BEST MODE FOR CARRYING OUT THE INVENTION
  • a semi-closed-type respirator 1 of the present example includes a hollow housing 2, and device components described later are built in the hollow housing 2.
  • One side of the hollow housing 2 is a backing surface 2a that contacts the back of a diver, and an opening for exchanging a respiratory gas cylinder is formed in the center of the opposite surface. 2b is installed.
  • a container 3 with a built-in carbon dioxide adsorption device is mounted horizontally. This container has a cylindrical shape as a whole, and flexible expiratory tubes 4 and inspiratory tubes 5 are connected to outer peripheral portions on both sides thereof. The distal ends of the expiratory tube 4 and the inspiratory tube 5 are connected to a mouthpiece unit 6.
  • the respiratory air circulation chamber 61 in the mouthpiece unit 6 communicates with the expiratory tube 4 and the inspiratory tube 5.
  • the other end of the exhalation tube 4 and the other end of the inhalation tube 5 communicate with both sides of the cylindrical container 3 in which the carbon dioxide adsorption device 7 is built. That is, a carbon dioxide adsorbing device 7 having an annular cross section is built in the center of the container 3, and an exhalation passage 31 and an inhalation passage 32 are formed on both sides thereof.
  • An orifice 84a for flow adjustment is provided in the middle position, through which the flow is adjusted to 4 to 5 liters / min and supplied to the mouthpiece unit. It is as follows.
  • the other gas supply pipe 85 is a purge gas supply pipe used for draining water from the mouthpiece unit 6, and similarly to the gas supply pipe 84 described above, a mouthpiece unit.
  • the remaining one gas supply pipe 86 is for supplying the intake air in an emergency, and its tip is located in the intake passage 32 of the container 3.
  • the overall gas flow is as follows. Expiration from the mouthpiece 6 2 of the mouthpiece unit 6 is performed via the expiratory tube 4 and the expiratory passage 31. It is stored in the exhalation air bag 9. During the inhalation operation, the exhaled air stored here is purified by removing carbon dioxide through the carbon dioxide adsorption device 7, and then flows into the intake passage 32. The exhaled air thus purified is stored in the air bag 11 for inhalation, and is supplied into the mouthpiece unit 6 through the intake pipe 5 for inhalation. A constant amount of new intake gas is constantly introduced from the cylinder 8 through the gas supply pipe 84 into the mouthpiece 6 and the mixed gas is supplied as the intake gas. .
  • FIG. 3 shows an exhalation airbag 9.
  • the air bag 9 is an elastic bag formed of a flexible material, and is capable of expanding and contracting according to a breathing operation.
  • a connection portion 91 connected to the connection portion 312 formed on the container 3 is formed.
  • the connection portion 91 is detachably connected to the connection portion 312 of the container by a screw-in type. Therefore, the air bag 9 of this example can be easily replaced.
  • the air bag for inhalation 11 is also a seamless integral urethane molded product like the air bag for exhalation 9.
  • a threaded connection to the container 3 is formed, so that it can be easily replaced.
  • the airbags 9 and 11 of this example are seamless urethane molded products.
  • air bags conventionally used are made by welding or bonding a rubberized cloth, a molded rubber article, or a nylon cloth coated with urethane or the like. It is molded into a bag and used.
  • a seam such as
  • the air bag of this example is a urethane molded product, it has a high tear strength, and is superior in durability and the like as compared with conventional air bags made of com. Furthermore, in the past, airbags were assumed to be used semi-permanently, and their replacement was not considered. However, in practice, mold and the like will be generated due to long-term use, and replacement will be required. In this case, this example is convenient because it can be easily replaced by a screw-in type.
  • a drainage device 130 for discharging water accumulated at the bottom of the air bag is attached to the outer surface 9a.
  • the drainage device 130 includes a telescopic pressure chamber 13 1 attached to the outer surface 9 a of the air bag 9, a tube 13 2 a communicating with the pressure chamber 13 1, and a tube 13 2 and a tube 1 34 connected to the a through a check valve 13 5, and the other end of the tube 13 4 is connected to an opening 9 2 formed in the bottom of the airbag 9. It is connected.
  • a tube 13 2 is connected between the tube 13 2 a and the check valve 13 5 via a check valve 13 3.
  • 1 3 2b is the back side of device 1 (ie, It is open to the outside at the back of the diver.
  • the airbag is formed of urethane resin.
  • various materials such as soft polyethylene, vinyl acetate ethylene copolymer resin, soft vinyl chloride resin, and silicone rubber can be used.
  • This embodiment is an example in which the present invention is applied to an air bag of a semi-closed respirator.
  • the present invention can be similarly applied to air bags of other types of breathing apparatuses.
  • urethane resin is used as the material of the airbag.
  • soft polyethylene vinyl acetate ethylene copolymer resin, soft vinyl chloride, various resins such as elastomers, silicone rubber, rubber and the like may be used.
  • the regulator 83 of the semi-closed breathing apparatus of the present embodiment reduces the pressure of the supply gas from the breathing gas cylinder to a constant pressure and supplies it. It is for.
  • the supply gas from the respiratory gas cylinder is depressurized to about 9 to 10 k square centimeters by the first stage, and then further depressurized by the second stage.
  • the first stage has a structure as shown in Fig. 5 for use.
  • the regulator 100 is a non-pressure-sensitive regulator and functions to keep the supply gas amount constant even when the ambient pressure changes.
  • a communication chamber 101 communicating with a valve of a breathing gas cylinder (not shown) is formed at the end.
  • the high-pressure gas supplied here from the cylinder is formed in the piston rod 102 a via an on-off valve mechanism 104 composed of a piston valve body 102 and a valve sheet 103.
  • the pressure is supplied to the pressure chamber 106 through the communication passage 105.
  • the pressure chamber 106 is partitioned by a piston head 107 and communicates with the second stage (not shown) via a low-pressure port 108. ing.
  • the piston head 107 is constantly urged by a coil spring 109 from the back side thereof with a constant elastic force.
  • a 0 ring 110 is attached to the outer peripheral surface of the steel head 107, and the pressure setting chamber 111 on which the coil spring 109 on the back side is mounted is airtightly closed. ing.
  • a 0 ring 112 for sealing the pressure setting chamber 111 and the communication line 105 side in an airtight state is also provided. Installed.
  • the valve of the breathing gas cylinder When the valve of the breathing gas cylinder is closed, the piston head 107 is pushed by the spring 109 toward the pressure chamber 106 as shown in Fig. 5, and the on-off valve mechanism 1 is opened. 0 4 is open.
  • the valve When the valve is opened, the high-pressure gas enters the communication chamber 101 from the cylinder, and enters the pressure chamber 106 via the opening / closing valve mechanism 104 and the communication passage 105.
  • low pressure port 108 is closed If it is, the pressure in the pressure chamber 106 increases.
  • the pressure in the pressure chamber pushes the steel head 107 against the spring force toward the pressure setting chamber, and the opening / closing valve mechanism 104 closes. The supply of high-pressure gas stops.
  • the gas in the pressure chamber 106 is supplied to each part of the external device through the port, so that the pressure in the pressure chamber decreases.
  • the piston head 107 is pushed toward the pressure chamber by the spring force, the opening / closing valve mechanism 104 is opened, and the supply of high-pressure gas is resumed. In this way, since the pressure chamber is always maintained at the set pressure, the gas reduced to the set pressure is supplied to each part via the low-pressure port 108.
  • the gas supplied from the breathing gas cylinder The following configuration may be adopted as the regulation of a diving respirator that reduces high-pressure gas to a preset pressure and sends it out from a low-pressure port. That is, a compartment formed in the regulator housing, a piston slidably disposed in the compartment and dividing the compartment into a pressure chamber and a pressure setting chamber, A communication passage formed in a state penetrating the piston and communicating the gas supply side of the breathing gas cylinder with the pressure chamber; and a communication passage disposed in the pressure setting chamber, the piston being connected to the pressure chamber side.
  • a second release valve communicating with the low-pressure port is further provided so that the pressure of the intake gas sent out from the low-pressure port is maintained at a predetermined pressure or lower. Desirable.
  • a second release valve is also arranged on the low-pressure port side, if the high-pressure gas cylinder side opens rapidly and high-pressure gas is supplied, or if the low-pressure port side suddenly opens, When the high-pressure gas enters the pressure chamber, it is possible to prevent the high pressure temporarily from acting on each part and the low-pressure port side. That is, the second release valve opens to reduce the internal pressure of the pressure chamber. Therefore, a sudden high pressure gas acts temporarily This can prevent each part from being damaged.
  • a power chamber 8336 is formed, and a pressure setting chamber 837 is formed on the back side of the head. These two chambers are airtightly partitioned by a 0-ring 838 attached to the outer peripheral surface of the piston head.
  • a coil spring 840 is mounted between the back of the piston head 832 and the spring sheet 839 formed in the housing. is is biased toward the pressure chamber.
  • the pressure chamber 836 communicates with each of the supply pipes 84, 85, 86, etc., via a low-pressure port 850.
  • the piston rod 833 extends through a through hole 841 formed in the housing. The distal end of the piston rod 833 is connected to a communication chamber 84 communicating with the gas discharge port 81 of the breathing gas cylinder. It protrudes into two. Piston mouth 8
  • the operation when the high-pressure gas leaks and the leaked high-pressure gas enters the pressure setting chamber 837 will be described.
  • the internal pressure of the pressure setting chamber increases due to the invading gas.
  • the valve body 826 of the release valve 860 is pushed and moved by the spring force by the increased pressure.
  • the side of the pressure setting chamber 837 and the externally open chamber 865 are connected and disconnected.
  • the gas in the pressure setting chamber is discharged outside through the release valve.
  • the release valve 860 closes again.
  • reguilleur can be applied to a respirator of a type other than the semi-closed respirator, for example, a closed respirator.
  • the air bag of the semi-closed-type respirator of the present invention is characterized in that it is a seamless integrally molded product formed of a synthetic resin. According to the present invention, since the airbag does not have a seam unlike the conventional airbag, it is necessary to inspect the seam strength and the like. Without the production management will be easier.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Air Bags (AREA)

Abstract

Cette invention concerne un gilet compensateur de flottabilité (9) pour appareil respiratoire de type semi-fermé (1), lequel gilet consiste en un élément sans joint et moulé intégralement obtenu en moulant par soufflage de la résine d'uréthanne. Une ouverture pratiquée dans le gilet (9) est conçue de manière à être vissée dans le corps principal de l'appareil respiratoire de type semi-fermé (1), assurant ainsi la fixation et simplifiant tout travail de remplacement. Etant donné que le gilet ne comporte pas de joints, il n'est donc pas nécessaire de vérifier la résistance de ces derniers, ce qui facilite le contrôle de la production. Ce gilet compensateur de flottabilité (9) est moulé à partir d'une résine d'uréthanne, ce qui permet d'accroître sa durabilité et autres qualités similaires. En outre, puisque le gilet (9) est moulé par soufflage, il est possible d'obtenir une taille uniforme et de fabriquer ledit gilet en grandes quantités.
PCT/JP1995/001559 1995-08-03 1995-08-03 Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme WO1997006054A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU31912/95A AU3191295A (en) 1995-08-03 1995-08-03 Air bag for a half-closed type breathing device
PCT/JP1995/001559 WO1997006054A1 (fr) 1995-08-03 1995-08-03 Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme
KR1019970702170A KR970706168A (ko) 1995-08-03 1995-08-03 반폐쇄식 호흡장치의 에어백(air bag for a half-closed type breathing device)
EP95927975A EP0782954A1 (fr) 1995-08-03 1995-08-03 Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1995/001559 WO1997006054A1 (fr) 1995-08-03 1995-08-03 Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme

Publications (1)

Publication Number Publication Date
WO1997006054A1 true WO1997006054A1 (fr) 1997-02-20

Family

ID=14126153

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1995/001559 WO1997006054A1 (fr) 1995-08-03 1995-08-03 Gilet compensateur de flottabilite pour appareil respiratoire de type semi-ferme

Country Status (4)

Country Link
EP (1) EP0782954A1 (fr)
KR (1) KR970706168A (fr)
AU (1) AU3191295A (fr)
WO (1) WO1997006054A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06171588A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置及びその炭酸ガス吸着装置
JPH06171589A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置におけるエアバッグ
JPH06171591A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置における炭酸ガス吸着装置
JPH07101388A (ja) * 1993-10-06 1995-04-18 Grand Blue:Kk 半閉鎖式呼吸装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06171588A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置及びその炭酸ガス吸着装置
JPH06171589A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置におけるエアバッグ
JPH06171591A (ja) * 1992-12-03 1994-06-21 Guran Bull-:Kk 潜水用呼吸装置における炭酸ガス吸着装置
JPH07101388A (ja) * 1993-10-06 1995-04-18 Grand Blue:Kk 半閉鎖式呼吸装置

Also Published As

Publication number Publication date
AU3191295A (en) 1997-03-05
KR970706168A (ko) 1997-11-03
EP0782954A1 (fr) 1997-07-09

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