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JP4023862B2 - Diving regulator breathing device - Google Patents
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JP4023862B2 - Diving regulator breathing device - Google Patents

Diving regulator breathing device Download PDF

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Publication number
JP4023862B2
JP4023862B2 JP02605197A JP2605197A JP4023862B2 JP 4023862 B2 JP4023862 B2 JP 4023862B2 JP 02605197 A JP02605197 A JP 02605197A JP 2605197 A JP2605197 A JP 2605197A JP 4023862 B2 JP4023862 B2 JP 4023862B2
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Japan
Prior art keywords
swivel
hole
breathing apparatus
needle
flow rate
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JP02605197A
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Japanese (ja)
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JPH10203482A (en
Inventor
剛 伝田
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株式会社ビーイズム
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Description

【0001】
【発明の属する技術分野】
本発明は、潜水用レギュレ−タ−の呼吸装置に関するものであって、更に言えば、潜水時の呼吸に便ならしめるための空気流量調整機能を付与した潜水用レギュレ−タ−の呼吸装置に係るものである。
【0002】
【従来の技術】
従来より使用されている潜水用レギュレ−タ−の呼吸装置は、中圧空気用ホ−スの接続部がスイベル機構を介して呼吸装置に装着されており、通常は空気の流路は共に一定の内径で加工された部材で接続されている。即ち、流路内を流れる空気流量はその部材の内径に依存してほぼ一定となっているのが一般的な構造であった。
【0003】
しかるに、近年に至り、潜水用レギュレ−タ−の呼吸装置における空気の流量をダイバ−の要求に応じて流量を調整しようとする提案がなされている。これは呼吸装置の流路内に弁を備え、この弁のバネの押し付け力の強弱で弁の移動量即ち弁の開き具合を調節して空気の流量を変化させようとするものである。
【0004】
【発明が解決しようとする課題】
潜水用レギュレ−タ−の呼吸装置を使用するダイバ−は夫々要求する空気量が異なるはずであるが、前者の潜水用レギュレ−タ−の呼吸装置にあっては、中圧空気用ホ−スから送られてくる空気量は、ホ−ス及び呼吸装置の内径によってきまるが、通常はホ−ス及び呼吸装置の空気が流れる流路は一定の内径となっており、このため空気の流量はほぼ一定となっており、ダイバ−の肺活量等から要求する空気量に対して流量の調整機能を有していないという欠点がある。
【0005】
一方、後者の場合にはこの空気量の調整機能は備えられてはいるものの、弁の開閉を司どるバネの押し付け力の変化に比例して吸気抵抗も変化してしまうという欠点があり十分なものではなかった。
【0006】
【課題を解決するための手段】
本発明は、潜水用レギュレ−タ−の呼吸装置の空気流量を、ダイバ−の要求に応じて任意に調整可能とし、又、吸気抵抗を変えずに常に安定した吸気感のある呼吸装置を提供するものであって、その要旨は、中圧空気用ホ−スと呼吸装置との接続部(スイベル芯及びスイベルハウジング)にあって、空気流量調整機能を備えたことを特徴とする潜水用レギュレ−タ−の呼吸装置に係るものである。
【0007】
そして具体的には、呼吸装置の底面に上下に貫通孔を有するスイベル芯を固定し、上下に貫通孔を有しかつスイベル芯の軸芯方向に対して交差する開口部を有するスイベルハウジングを、前記スイベル芯の下側にスイベル芯の貫通孔の軸芯廻りに回転自在に装着し、前記開口部にはこの開口部の軸芯廻りに回転自在に中圧空気用ホ−スを装着し、前記スイベルハウジングの下側より、基端に回転ノブを備え先端を尖端部としたニ−ドルを当該貫通孔内に嵌入させ、前記ノブを回転させてニ−ドルを上下に前進又は後退させ、前記ニ−ドル尖端部とスイベル芯の貫通孔先端の段部との間の隙間を調整し、空気流量を所望の流量に調整する空気流量調整機構を備えたことを特徴とする潜水用レギュレ−タ−の呼吸装置を提供するものである。
【0008】
【発明の実施の形態】
本発明の潜水用レギュレ−タ−の呼吸装置にあっては、呼吸装置の底面にスイベル芯及びスイベルハウジングからなる接続部を装着し、かつスイベルハウジングには空気用ホ−スを装着したものであり、スイベルハウジングの下側から回転ノブを備えたニ−ドルを嵌入させて供給される空気流量を調整する調整機構を備えたものである。
【0009】
そして、前記ノブを回転させてニ−ドルを上下に前進又は後退させ、前記ニ−ドル尖端部とスイベル芯の貫通孔先端の段部との間の隙間を調整し、空気流量を所望の流量に調整するものであって、このため、かかる潜水用レギュレ−タ−の呼吸装置を使用することによりダイバ−の肺活量に合せて空気を送り込むことが可能となったものであり、ホ−スから送られる空気を効率的に使用可能となったものである。
【0010】
使用される空気流量調整機構としては、その調整が確実かつ比較的簡単な機構であり、空気流通孔とこの軸芯方向と合致した方向に移動可能なニ−ドルとからなるものである。更に言えば、前記ニ−ドルが空気流通孔(貫通孔)内に嵌入する先端を尖端部とし、回転ノブを備えた基端部と、その間に空気流通孔内の雌ネジ部に螺合する雄ネジ部と、からなるものであって、回転ノブを廻すことによってニ−ドル先端の位置を調整し、この尖端部の外表面と空気流通孔との間の隙間を調整して空気流量を所望の流量にしようとするものである。
【0011】
【実施例】
以下、本発明の潜水用レギュレ−タ−の呼吸装置を図面をもって更に詳細に説明する。図1は本発明の潜水用レギュレ−タ−の呼吸装置の全体図を示す一部断面図であって、図2はその主要部の拡大断面図である。符号30は呼吸装置であり、これにはマウスピ−ス31、ゴム様のダイヤフラム32、レバ−33、弁34が備えられており、マウスピ−ス31にてダイバ−が空気を吸うと、ダイヤフラム32が吸いよせられ、これと共にレバ−33が作動し、弁34が上昇して低圧空気が導かれることになる。
【0012】
呼吸装置30の本体の底面、即ち使用者が当該呼吸装置30を用いた際の呼吸装置30の下側にはスイベル芯20が装着・固定される。かかるスイベル芯20はその長手方向に貫通孔21を有し、スイベル芯20の上端は呼吸装置30の本体の底面のほぼ中央を貫通し、この本体をはさんで設けたO−リング6を介して螺着される。符号7はスイベル芯20に備えられた夫々O−リング挿着する凹溝である。一方、スイベルハウジング11には、前記貫通孔21と繋がる貫通孔14が形成され、上端及び下端にO−リング6が備えられてスイベル芯20との間で回転自在に係合している。
【0013】
かかるスイベルハウジング11には中圧空気用ホ−スの接続のための開口部12が貫通孔14に対して下向きに10度の角度をもって構成されている。
【0014】
1は中圧空気用ホ−スであって、内挿されたニップル2に対して締金具3によって加締められて各部材が互いに締結されている。そして、ニップル2の他端はナット4に係止される突起5とO−リング6を挿着する凹溝7を有し、接続部10を構成するスイベルハウジング11の開口部12内に挿入され、ナット4を開口部12の外面ネジ13に螺合することによって締結し、スイベルハウジング11と中圧空気用ホ−ス1が連結される。従って、中圧空気用ホ−ス1の軸芯方向も10度の角度をもって配置されている。そして、ナット4の螺着力を調整することによって中圧空気用ホ−ス1はその軸芯廻りAに回転自在となる。
【0015】
スイベル芯20の下端20Aはスイベルハウジング11の下方に突出し、この部位に外面ネジ22及び内面ネジ23が刻設される。そしてナット24が外面ネジ22に螺合されスイベルハウジング11が回転自在に装着される。即ち、スイベル芯20の軸芯方向に対してスイベルハウジング11がスイベル芯の軸芯廻りBに回転自在とされたものであって、これは中圧空気圧用ホ−ス1の回転軸Aとはこの例では角度80度を保持して交差しつつ回転するものである。
【0016】
さて、スイベル芯20の下端20Aより貫通孔21内に空気流量調整機構50の主体をなすニ−ドル40を上向きに挿入する。即ち、ニ−ドル40はその先端を尖らせ(尖端部41)、基端に外面ネジ42を備えたものであって、尖端部41より貫通孔21内に挿入し基端の外面ネジ42をスイベル芯20の下端20Aの内面ネジ23に螺合させる。そして、この両者の螺合を進めて行くとニ−ドル40の尖端部41がスイベル芯20の貫通孔21に形成された段部25に対向する位置になり、この段部25とニ−ドル40の尖端部41の外表面との間の隙間を適当に形成することにより(中圧)空気の流量が調整されることとなる。尚、ニ−ドル40には一対の凸条43、43が形成され、これにてO−リング6を挿着する凹溝7が形成されるものであって、この凹溝7に挿着されたO−リング6によってスイベル芯20の下端20Aの内面との間がシ−ルされる。尚、図にあっては、ニ−ドル40を上下に前進又は後退させ易いようにノブ44がニ−ドル40の下側に例えば止めネジ45等によって装着されている。
【0017】
図3は従来のダブルスイベル型潜水用レギュレ−タ−の呼吸装置の部分図であり、この例にあっては、スイベル芯20の下端には本発明でいうニ−ドル40等の機能はなく、単にスイベル止めネジ29にて装着されているだけである。従って、この潜水用レギュレ−タ−の呼吸装置を使用するダイバ−が潜水中にて呼吸した場合、ホ−スを介して導かれる空気量は何んら流量の調整もなく弁を至て呼吸に供されることになる。
【0018】
しかるに、前記したような構造を持つ本発明の潜水用レギュレ−タ−の呼吸装置にあっては、呼吸装置の底面にスイベル芯及びスイベルハウジングを装着したものであり、スイベルハウジングの下側よりスイベル芯の貫通孔内にニ−ドルを嵌入させたものであり、このニ−ドルをノブを回転させることによって上下に前進又は後退させて空気流通路の大きさを調整することとなったもので、所望の空気流通路とすることによりダイバ−の肺活量に合せた空気量を供給することができることとなり、ボンベ内の限られた空気が有効に利用されることになる。
【0019】
【発明の効果】
本発明は以上の通りの構造を有しているため、使用するダイバ−の肺活量に応じて必要な空気量を安定した吸気感をもって送ることができるようになったものであり、その利用価値は大きい。
【図面の簡単な説明】
【図1】図1は本発明の潜水用レギュレ−タ−の呼吸装置の全体図を示す一部断面図である。
【図2】図2は図1の潜水用レギュレ−タ−の呼吸装置の主要部の拡大一部断面図である。
【図3】図3は従来の潜水用レギュレ−タ−の呼吸装置の部分図である。
【符号の説明】
1‥‥中圧空気用ホ−ス、
2‥‥ニップル、
3‥‥締金具、
4‥‥ナット、
5‥‥突起、
6‥‥O−リング、
7‥‥凹溝、
10‥‥接続部、
11‥‥スイベルハウジング、
12‥‥スイベルハウジングの開口部、
13‥‥外面ネジ、
14‥‥スイベルハウジングの貫通孔、
20‥‥スイベル芯、
20A‥‥スイベル芯の下端、
21‥‥スイベル芯の貫通孔、
22‥‥スイベル芯の下端の外面ネジ、
23‥‥スイベル芯の下端の内面ネジ、
24‥‥ナット、
25‥‥スイベル芯の貫通孔に形成された段部、
30‥‥呼吸装置、
31‥‥マウスピ−ス、
32‥‥ダイヤフラム、
33‥‥レバ−、
34‥‥弁、
40‥‥ニ−ドル、
41‥‥ニ−ドルの先端(尖端部)、
42‥‥ニ−ドルの基端の外面ネジ、
43‥‥凸条、
44‥‥ノブ、
45‥‥止めネジ、
50‥‥空気流量調整機構。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a diving regulator breathing apparatus, and more specifically, to a diving regulator breathing apparatus provided with an air flow rate adjusting function for facilitating breathing during diving. It is concerned.
[0002]
[Prior art]
Conventionally used diving regulator breathing devices have a medium pressure air hose connected to the breathing device via a swivel mechanism, and the air flow paths are usually constant. It is connected with the member processed with the inner diameter of. That is, the general structure is that the flow rate of air flowing in the flow path is substantially constant depending on the inner diameter of the member.
[0003]
However, in recent years, proposals have been made to adjust the flow rate of air in the breathing apparatus of the diving regulator according to the diver's request. This is because a valve is provided in the flow path of the breathing apparatus, and the amount of air flow is changed by adjusting the amount of movement of the valve, that is, the degree of opening of the valve by the strength of the pressing force of the spring of the valve.
[0004]
[Problems to be solved by the invention]
Divers who use the breathing apparatus of the diving regulator should be different from each other, but the breathing apparatus of the former diving regulator has a medium pressure air hose. The amount of air sent from the air is determined by the inside diameter of the hose and the breathing apparatus, but the flow path through which the air of the hose and the breathing apparatus normally flows has a constant inner diameter, and therefore the air flow rate is There is a drawback that the flow rate is not adjusted with respect to the amount of air required from the diver's vital capacity or the like.
[0005]
On the other hand, in the latter case, although this air amount adjustment function is provided, there is a drawback that the intake resistance also changes in proportion to the change in the pressing force of the spring that controls the opening and closing of the valve. It was not a thing.
[0006]
[Means for Solving the Problems]
The present invention provides a breathing apparatus that can adjust the air flow rate of the breathing apparatus of the diving regulator arbitrarily according to the diver's demand, and always has a stable feeling of inspiration without changing the inspiratory resistance. The gist of the present invention is a diving regulator characterized in that it is in a connection part (swivel core and swivel housing) between a hose for medium pressure air and a breathing apparatus and has an air flow rate adjusting function. -It relates to a tidal breathing apparatus.
[0007]
And specifically, a swivel housing having a through hole on the bottom of the breathing apparatus is fixed to the bottom of the breathing apparatus, and has an opening that has a through hole on the top and bottom and intersects the axial direction of the swivel core. A swivel core is rotatably mounted around the shaft core of the through hole of the swivel core, and a medium pressure air hose is rotatably mounted around the shaft core of the opening. From the lower side of the swivel housing, a needle having a rotation knob at the base end and having a tip at the tip is fitted into the through hole, and the needle is moved up and down by rotating the knob. A diving regulator comprising an air flow rate adjusting mechanism that adjusts a gap between the needle tip and a step at the tip of the through hole of the swivel core to adjust the air flow rate to a desired flow rate. A breathing apparatus for a heater is provided.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the diving regulator breathing apparatus of the present invention, a connecting portion comprising a swivel core and a swivel housing is mounted on the bottom surface of the breathing apparatus, and an air hose is mounted on the swivel housing. There is provided an adjusting mechanism for adjusting the flow rate of air supplied by inserting a needle provided with a rotary knob from the lower side of the swivel housing.
[0009]
Then, the knob is rotated to advance or retract the needle up and down, the gap between the needle tip and the step at the tip of the through hole of the swivel core is adjusted, and the air flow rate is set to a desired flow rate. Therefore, by using the respirator of such a diving regulator, it becomes possible to send air according to the diver's vital capacity. The air sent can be used efficiently.
[0010]
The air flow rate adjusting mechanism used is a mechanism that is reliable and relatively easy to adjust, and includes an air circulation hole and a needle that can move in a direction that matches the axial direction. More specifically, the tip where the needle fits into the air flow hole (through hole) is a pointed end, and is screwed into the base end provided with the rotation knob and the female screw in the air flow hole therebetween. The position of the needle tip is adjusted by turning the rotary knob, and the gap between the outer surface of the tip and the air circulation hole is adjusted to control the air flow rate. It is intended to achieve a desired flow rate.
[0011]
【Example】
Hereinafter, the breathing apparatus of the diving regulator of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a partial cross-sectional view showing an overall view of a respirator of a diving regulator according to the present invention, and FIG. 2 is an enlarged cross-sectional view of the main part thereof. Reference numeral 30 denotes a breathing apparatus, which is provided with a mouthpiece 31, a rubber-like diaphragm 32, a lever 33, and a valve 34. When the diver sucks air at the mouthpiece 31, the diaphragm 32 is provided. And the lever 33 is actuated at the same time, and the valve 34 is raised to introduce low-pressure air.
[0012]
The swivel core 20 is attached and fixed to the bottom surface of the main body of the breathing apparatus 30, that is, the lower side of the breathing apparatus 30 when the user uses the breathing apparatus 30. The swivel core 20 has a through-hole 21 in its longitudinal direction, and the upper end of the swivel core 20 passes through substantially the center of the bottom surface of the main body of the breathing apparatus 30 via an O-ring 6 provided across the main body. Screwed. Reference numeral 7 denotes a concave groove provided in the swivel core 20 for inserting an O-ring. On the other hand, the through hole 14 connected to the through hole 21 is formed in the swivel housing 11, and O-rings 6 are provided at the upper end and the lower end, and are rotatably engaged with the swivel core 20.
[0013]
In the swivel housing 11, an opening 12 for connecting a medium pressure air hose is formed with an angle of 10 degrees downward with respect to the through hole 14.
[0014]
Reference numeral 1 denotes a medium pressure air hose, which is fastened by a fastener 3 to an inserted nipple 2 and fastened to each other. The other end of the nipple 2 has a projection 5 locked to the nut 4 and a concave groove 7 into which the O-ring 6 is inserted, and is inserted into the opening 12 of the swivel housing 11 constituting the connection portion 10. The nut 4 is fastened by screwing onto the outer surface screw 13 of the opening 12 to connect the swivel housing 11 and the medium pressure air hose 1. Therefore, the axial direction of the medium pressure air hose 1 is also arranged at an angle of 10 degrees. Then, by adjusting the screwing force of the nut 4, the medium pressure air hose 1 is rotatable around its axis A.
[0015]
The lower end 20A of the swivel core 20 protrudes below the swivel housing 11, and an outer surface screw 22 and an inner surface screw 23 are engraved at this portion. Then, the nut 24 is screwed onto the outer surface screw 22, and the swivel housing 11 is rotatably mounted. That is, the swivel housing 11 is rotatable about the axis B of the swivel core with respect to the axis direction of the swivel core 20, which is the rotation axis A of the medium pressure pneumatic hose 1. In this example, it rotates while maintaining an angle of 80 degrees and intersecting.
[0016]
Now, the needle 40 constituting the main body of the air flow rate adjusting mechanism 50 is inserted upward from the lower end 20 </ b> A of the swivel core 20 into the through hole 21. That is, the needle 40 is sharpened at the tip (pointed portion 41), and has an outer surface screw 42 at the proximal end. The needle 40 is inserted into the through-hole 21 from the pointed portion 41, and the outer surface screw 42 at the proximal end is inserted. The swivel core 20 is screwed into the inner screw 23 at the lower end 20A. Then, when the screwing of both is advanced, the pointed portion 41 of the needle 40 comes to a position facing the step portion 25 formed in the through hole 21 of the swivel core 20, and the step portion 25 and the needle are in contact with each other. The flow rate of air is adjusted by appropriately forming a gap with the outer surface of the 40 tip portions 41 (medium pressure). The needle 40 is formed with a pair of ridges 43, 43, thereby forming a groove 7 into which the O-ring 6 is inserted, and is inserted into the groove 7. The O-ring 6 seals the inner surface of the lower end 20 </ b> A of the swivel core 20. In the figure, a knob 44 is attached to the lower side of the needle 40 by, for example, a set screw 45 so that the needle 40 can be easily moved up and down.
[0017]
FIG. 3 is a partial view of a breathing apparatus of a conventional double swivel type diving regulator. In this example, the lower end of the swivel core 20 has no function of the needle 40 or the like referred to in the present invention. It is simply attached with a swivel set screw 29. Therefore, when a diver using the diving regulator breathing apparatus breathes in the diving, the amount of air introduced through the hose reaches the valve without adjusting the flow rate. Will be served.
[0018]
However, in the respirator of the diving regulator of the present invention having the above-described structure, the swivel core and the swivel housing are mounted on the bottom surface of the respirator, and the swivel from the lower side of the swivel housing. The needle is inserted into the through-hole of the core, and the needle is moved up and down by rotating the knob to adjust the size of the air flow passage. By setting the desired air flow passage, it is possible to supply an amount of air that matches the vital capacity of the diver, and the limited air in the cylinder is effectively used.
[0019]
【The invention's effect】
Since the present invention has the structure as described above, the required amount of air can be sent with a stable inspiration according to the vital capacity of the diver to be used. large.
[Brief description of the drawings]
FIG. 1 is a partial sectional view showing an overall view of a breathing apparatus of a diving regulator according to the present invention.
2 is an enlarged partial cross-sectional view of the main part of the breathing apparatus of the diving regulator of FIG. 1. FIG.
FIG. 3 is a partial view of a breathing apparatus of a conventional diving regulator.
[Explanation of symbols]
1 ... Medium pressure air hose,
2 Nipple,
3 ... Fasteners,
4. Nut,
5 ... Projections,
6 ... O-ring,
7 ... concave groove,
10. Connections,
11 ... swivel housing,
12. Opening of swivel housing,
13 ... External screw,
14 ... Swivel housing through-hole,
20 ... swivel core,
20A ... the lower end of the swivel core,
21 ... Swivel core through hole,
22 ... External screw at the lower end of the swivel core,
23 ... Internal screw at the bottom of the swivel core,
24 ... nuts,
25... Step portion formed in the through hole of the swivel core,
30 ... breathing apparatus,
31 ... mouse piece,
32 ... Diaphragm,
33 Lever,
34 ... valve,
40 Needle,
41.. Needle tip (tip),
42 ... the external thread at the base end of the needle,
43 ... ridges,
44 Knobs,
45 ... Set screw,
50: Air flow adjustment mechanism.

Claims (1)

呼吸装置の底面に上下に貫通孔を有するスイベル芯を固定し、上下に貫通孔を有しかつスイベル芯の軸芯方向に対して交差する開口部を有するスイベルハウジングを、前記スイベル芯の下側にスイベル芯の貫通孔の軸芯廻りに回転自在に装着し、前記開口部にはこの開口部の軸芯廻りに回転自在に中圧空気用ホ−スを装着し、前記スイベルハウジングの下側より、基端に回転ノブを備え先端を尖端部としたニ−ドルを当該貫通孔内に嵌入させ、前記ノブを回転させてニ−ドルを上下に前進又は後退させ、前記ニ−ドル尖端部とスイベル芯の貫通孔先端の段部との間の隙間を調整し、空気流量を所望の流量に調整する空気流量調整機構を備えたことを特徴とする潜水用レギュレ−タ−の呼吸装置。  A swivel housing having a through hole on the bottom of the breathing apparatus is fixed to the bottom of the breathing apparatus, and a swivel housing having a through hole on the top and bottom and having an opening intersecting the axial direction of the swivel core. The swivel core is rotatably mounted around the axis of the through hole, and the opening is provided with a medium pressure air hose rotatably about the axis of the opening. Then, a needle having a rotation knob at the base end and having a tip at the tip is fitted into the through hole, and the knob is rotated to move the needle up and down, and the needle tip. A diving regulator breathing apparatus comprising an air flow rate adjusting mechanism that adjusts a gap between the step portion at the tip of the through hole of the swivel core and adjusts the air flow rate to a desired flow rate.
JP02605197A 1997-01-25 1997-01-25 Diving regulator breathing device Expired - Lifetime JP4023862B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02605197A JP4023862B2 (en) 1997-01-25 1997-01-25 Diving regulator breathing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02605197A JP4023862B2 (en) 1997-01-25 1997-01-25 Diving regulator breathing device

Publications (2)

Publication Number Publication Date
JPH10203482A JPH10203482A (en) 1998-08-04
JP4023862B2 true JP4023862B2 (en) 2007-12-19

Family

ID=12182898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02605197A Expired - Lifetime JP4023862B2 (en) 1997-01-25 1997-01-25 Diving regulator breathing device

Country Status (1)

Country Link
JP (1) JP4023862B2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826698U (en) * 1971-08-05 1973-03-30
JPS58191055U (en) * 1982-06-12 1983-12-19 石川島タンク建設株式会社 Regulator for mask
JPH0646795Y2 (en) * 1988-04-27 1994-11-30 ブリヂストンフローテック株式会社 Diving regulator breathing apparatus
JPH082079Y2 (en) * 1990-05-02 1996-01-24 日本酸素株式会社 Breathing apparatus
JP2521543Y2 (en) * 1990-07-18 1996-12-25 株式会社ナガノ Constant flow valve for intake gas supply
EP0534741B1 (en) * 1991-09-26 1996-11-13 Dacor Corporation Breathing regulator having air injector feature
US5233976A (en) * 1992-04-27 1993-08-10 Dacor Corporation Second stage regulator hose with built-in cone adjusting tool

Also Published As

Publication number Publication date
JPH10203482A (en) 1998-08-04

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