JPH1024896A - Hose weight of breathing device and hose weight attaching method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a hose weight with ease and shorten hose weight attaching time. SOLUTION: The hose weight 51 of a breathing device so simply comprises a notch 55 for parting a ring formed in the side face as to be manufactured with ease and at a low cost. Since the hose weight 51 can be attached to a hose from the side face of the hose through the notch 55 of the hose weight 51, the weight of the hose can be properly adjusted by attaching hose weights only to necessary places from the side face. Even if the hose has a collar in particular, the hose weight 51 is not required to be forcibly pushed, hardly being damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose weight for adjusting buoyancy by assembling with a hose of a breathing apparatus used underwater and a method of assembling the hose weight.

[0002]

2. Description of the Related Art There are various types of respirators used underwater, such as an open respirator and a semi-closed respirator. Of these, for example, a semi-closed respirator is used. In general, it is equipped with a breathing bag, a valve unit, a canister (carbon dioxide adsorbing device), and a breathing gas cylinder to remove carbon dioxide from breathing gas circulating in the breathing circuit and supply breathing gas into the breathing circuit while breathing. The circuit is configured to discharge excess respiratory air.

A conventional semi-closed breathing apparatus of this type includes an intake hose, an exhaust hose, and a hose constituting a breathing circuit.
The mouthpiece is easily buoyant due to the presence of gas. If such a portion has buoyancy partially, it may be difficult to swim or hinder swimming.

[0004] In order to adjust the buoyancy, for example, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-257483, a technique in which a hose is provided with a control weight in a part thereof is known. Since the control weight is composed of a large number of components, the configuration is complicated, large, and expensive. Furthermore, the hose weight disclosed in the above-mentioned publication is attached only to one end of the hose and is not attached uniformly to the entire hose, so that there is a disadvantage that sufficient buoyancy cannot be adjusted.

For this reason, in a conventional semi-closed respiratory apparatus, as shown in FIG. 7, collars 103 are formed on a peripheral surface of a hose 101 at predetermined intervals, and a ring-shaped weight 105 is formed.
Was attached to the entire hose through the hole 105A of the ring from the end of the hose.

[0006] Such a conventional hose weight has a simple structure called a ring, and its manufacturing cost is low.

[0007]

However, according to the conventional hose weight shown in FIG.
When the hose weight 105 is attached to the base end of the hose, the hose weight 105 is inserted from the distal end of the hose, and a large number of collars 10 are inserted.
It is necessary to get over each one of 3 and push it to the root of the hose. The hose sometimes split. Further, the hose may be stretched when forcibly inserting the hose.

In addition, since the first hose weight has to go over a large number of collars, there is a problem that it takes time to assemble the hose.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hose weight of a breathing apparatus and a method of assembling the hose weight, which can be easily mounted with a simple structure and can be mounted in a short time.

[0010]

According to one aspect of the present invention, there is provided a hose weight of a breathing apparatus which is attached to a hose of a breathing apparatus used in water and adjusts buoyancy. A notch that divides the ring is formed on the side, the width of the notch is formed to be smaller than the outer shape of the hose to be attached, and the notch is attached from the side of the elastically deformed hose. is there.

According to the first aspect of the present invention, since the hose weight has a very simple configuration in which a notch for dividing the ring is formed on the side surface of the ring shape, it is easy to manufacture. And it is inexpensive. When assembling this hose weight, press the notch of the ring against the hose of the elastically deformable breathing apparatus, or crush the hose with a finger or the like to deform the hose elastically and cut the hose weight through the notch. insert. After the insertion, the deformation of the hose is restored, and the outer diameter of the hose becomes larger than the size of the notch, so that the hose weight can be held in the attached state without falling off.

Therefore, the hose can be assembled easily and in a short time, and there is no need to forcibly press the hose weight against the collar having a larger outer shape than the hose, so that the hose is hardly damaged. In particular, since it is assembled from the side of the hose, when attaching the hose weight to the base of the hose, as in the case of attaching to the tip,
It can be easily assembled from the side of that part.

According to a second aspect of the present invention, there is provided a method of assembling a hose weight for adjusting the buoyancy of a hose in a semi-closed respiratory apparatus that utilizes carbon dioxide gas by removing carbon dioxide from the respiratory gas circulating in the respiratory circuit. Between a plurality of collars provided at predetermined intervals on the side surface of the hose,
A hose weight in which a notch for dividing a ring is formed on a side surface is assembled through a notch of the ring from a side surface of the hose.

According to the second aspect of the present invention, in the same manner as the hose weight assembling method according to the first aspect, the hose weight of the semi-closed respirator provided with the plurality of collars is formed. When installing the hose, it can be installed directly from the side of the hose between the collars, and when installing the weight at the base of the hose, there is no need to go over the collar and assemble, so installation is easy. Yes, in a short time. In particular, since the hose rib does not interfere with the hose, there is no need to apply excessive force to the hose or the weight, so that the hose is not damaged.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG.
An embodiment of the present invention will be described in detail with reference to FIG. First, a configuration of a semi-closed respirator to which a hose weight according to the present invention is attached will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, a semi-closed respirator 1
Is composed of a breathing bag 3, a canister (carbon dioxide adsorption device) 5, a breathing gas cylinder (gas cylinder) 7, and a mouthpiece 9. In the case of exhaustion, the respiratory gas discharged from the mouthpiece 9 is exhausted by an exhaust pipe. 4, the air is supplied to the breathing bag 3 through the connection port 8, and in the case of inhalation, the breathing gas in the breathing circuit passes through the canister 5 from the breathing gas in the breathing bag 3 and passes through the intake pipe 10. And supplied to the mouthpiece 9.
Air is supplied to the canister 5 quantitatively from the breathing gas cylinder 7 via the medium pressure pipe 25.

The intake pipe (hose) 10 and the exhaust pipe 4 connected to the mouthpiece 9 are a double pipe in which the intake pipe 10 is inside a single breathing pipe 14 and the outside is surrounded by the exhaust pipe 4. It is a single tube of structure. With such a double-tube structure, the semi-closed breathing apparatus 1 can be easily attached and detached, and the external appearance of the entire apparatus is not damaged and the configuration of the entire apparatus can be simplified. In addition, breathing tube 1
In 4, a double pipe structure having the intake passage 10 as the inner passage can prevent damage to the intake pipe 10 even if the exhaust pipe 4 is damaged by external force or the like, so that the intake can be secured. Is available.

Since the gas is introduced into the respiratory tube 14, the buoyancy tends to have a buoyancy.
The hose weight according to the present invention is attached to 0,
The buoyancy in water is adjusted, and details thereof will be described later. Since the intake pipe 10 needs to have flexibility, it is made of an elastically deformable material, can be crushed by a finger or a hand, and is elastically restored after being crushed. ing.

The bag body 29 of the breathing bag 3 is formed of an elastic material such as rubber,
It expands and contracts in the direction indicated by arrow A in FIG. Inside the bag body 29, a crush prevention member 27 for preventing the crush of the breathing bag is arranged. On one side of the bag body 29, there is provided a valve unit 30 for discharging the respiratory air in the bag body 29. This valve unit 30 is provided when the bag body 29 is expanded and a predetermined amount of respiratory air is accumulated. , To exhale breath.

The canister 5 is connected to the breathing bag 3 and the breathing gas cylinder 7. The exhaust pipe 4 is connected to an intake port 19 provided on one side thereof, and the above-mentioned intake pipe 10 is connected to an exhaust port 21. Have been. An adsorbent cartridge 16 filled with a carbon dioxide adsorbent is accommodated in the canister 5, and an inflow passage 5a for air is provided on one side of the canister, and an outflow passage 5b is provided on the other side. Is formed.
The canister 5 is provided with a valve 26 for preventing the adsorbent cartridge 16 from being left behind when the adsorbent cartridge 16 is forgotten to be closed.

The mouthpiece 9 has an intake valve 11 and an exhaust valve 1.
The intake valve 11 and the exhaust valve 13 are check valves, respectively. In the case of intake, only the intake valve 11 is opened, and in the case of exhaust, only the exhaust valve 13 is opened.
The exhaust valve 13 is an on / off valve by a diaphragm 33.

Further, the casing 31 of the mouthpiece 9 is provided with a drain valve 35 for discharging water that has entered the casing. The drain valve 35 includes a drain valve body that sits on the drain port and closes the drain port and a coil spring that biases the valve body, and presses the valve body against the biasing force of the coil spring. This opens the drain.

In addition, a demant supply valve 34 is provided in the mouthpiece 9 so that respiratory gas is supplied from a respiratory gas cylinder according to the internal pressure.

As shown in FIG. 2, the semi-closed breathing apparatus 1 is provided integrally with a buoyancy control apparatus (BCD) 41, so that it can be easily mounted and the whole structure is simplified. The breathing bag 3 is formed with a neck hole 43 for inserting a wearer's neck at substantially the center of the bag main body 29, and the breathing bag 3 is arranged around the wearer's neck. The ends are aligned with each other and are stopped by the locking members 44.

That is, the buoyancy adjusting device 41 is provided with a bag body 29 of the breathing bag 3 from around the neck to the front, and is configured to mount the breathing gas cylinder 7 and the canister 5 on the back of the wearer. ing.

Next, the hose weight 51 according to the present invention will be described.
The configuration of the respiratory tube 14 with the attached will be described in more detail. As shown in FIG. 3, in the breathing pipe 14 having a double pipe structure, the outer exhaust pipe 4 is formed in a bellows shape, so that flexibility is given. An intake pipe (hose) 10 is disposed inside the exhaust pipe (outer pipe) 4, and the intake pipe 10 is made of a flexible member such as a resin material.
It is elastically deformable, and when elastically deformed, it can be easily elastically restored. The intake pipe 10 is integrally formed with flanges 53 at predetermined intervals. A hose weight 51 is assembled between the flanges 53 and 53 so as to hold the hose weight 51 so that the position of the hose weight 51 does not shift. I have.

That is, in the present embodiment, the hose weight 51 is attached to the entire intake pipe 10 and the buoyancy of the entire respiratory pipe 14 is adjusted.
The hose can be made stable in water without locally increasing buoyancy. Moreover, since the hose weight is attached to the inner hose in the double pipe structure, the hose weight does not hinder swimming.

Here, the configuration of the hose weight 51 will be described. As shown in FIGS. 4 and 5, the hose weight 51 is formed in a ring shape having a notch 55 on a side surface, and is formed in a substantially C shape. The material of the hose weight 51 is not particularly limited. Further, at the time of manufacturing, since the hose weight has a very simple configuration of a substantially C-shape, it can be easily and mass-produced by die molding or the like, and the cost is low.

Next, a method of attaching the hose weight 51 will be described. As shown in FIG. 4, in the intake pipe 10 having the double pipe structure, the notch 55 formed in the ring of the hose weight 51 is directly pressed against the side surface of the intake pipe 10, or the breathing pipe 10 is crushed by a finger. The hose weight 51 is inserted between the collar 53 and the collar 53 from the side of the intake pipe 10. After the hose weight 51 is inserted, the portion of the intake pipe 10 crushed by a finger (or crushed by the hose weight) is elastically restored, and the outer shape of the breathing pipe 10 returns to its original size. Does not fall out of the notch 55.

The assembled hose weight 51 is held by the collar 53 so as not to move up and down from the installation position of the intake pipe 10. Therefore, the hose weight 51
Is securely held in the mounting position. In addition, the same operation can be applied to not only the case of attaching to the distal end portion of the intake pipe 10, but also the case of attaching to the base end portion or the intermediate portion, and it can be easily attached to a necessary place. In this way, it can be assembled uniformly according to the required part or the whole of the breathing tube 10.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, the hose weight 51 may have a shape in which a notch that divides a ring is formed on a side surface.

Also, as shown in FIG. 6, the same effect as that of the above-described embodiment can be obtained by providing the tongue piece 59 that opens only when pressed from the outside in the notch 55. be able to. In this case, since the size of the notch 55 can be made larger than the outer diameter of the intake pipe 10, there is no need to crush the intake pipe 10 or almost no force is applied to the ring. The hose weight 51 can be easily fitted into the breathing tube 10.

Furthermore, in the above-described embodiment, the method of assembling the hose weight to the inner hose having the double pipe structure has been described as an example. However, the present invention is not limited to this, and any hose used for a breathing apparatus may be used. The same effect can be obtained even when the outer hose or the medium pressure pipe 25 is assembled. Also, needless to say, the hose weight according to the present invention is not limited to being used for a semi-closed respirator, but can be used in other types of respirators such as an open respirator to obtain the same effect. .

[0034]

According to the first aspect of the present invention, the hose weight can be easily manufactured because the hose weight has a very simple structure in which a notch for dividing the ring is formed on the side surface. And at low cost. In addition, since the hose can be assembled from the side surface, the weight can be easily adjusted in a short time in a required portion at a distal end portion or a proximal end portion of the hose.

In particular, it is not necessary to force the hose weight against the brim of the hose having a large outer diameter, so that the hose is hardly damaged, and the hose weight is attached to the base of the hose and also to the tip of the hose. It can be easily assembled as well.

According to the second aspect of the present invention, when the hose weight is mounted on the inner hose in the double-pipe structure of the semi-closed breathing apparatus, it is directly mounted from the side of the hose between the flanges. When the weight is arranged at the root of the hose, it is not necessary to go over the collar and assemble the assembly, so that the assembly is easy and can be performed in a short time. In particular, since the hose rib does not interfere with the hose, there is no need to apply excessive force to the hose or weight, and the hose is not damaged.

[0037]

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a semi-closed respirator to which a hose weight according to the present invention is attached.

FIG. 2 is a perspective view showing a wearing state of the semi-closed breathing apparatus shown in FIG. 1;

FIG. 3 is a sectional view of an intake pipe having a double pipe structure shown in FIG. 1;

FIG. 4 is a perspective view illustrating a method of assembling a hose weight.

FIG. 5 is a perspective view of a hose weight according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a modified example of the hose weight.

FIG. 7 is a perspective view illustrating a conventional method of assembling a hose weight.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Semi-closed respirator 10 Inhalation pipe (hose) 51 Hose weight 53 Collar 55 Notch

Claims (2)

[Claims] 1. A hose weight of a breathing apparatus for adjusting the buoyancy attached to a hose of a breathing apparatus used in water, wherein a notch for dividing a ring is formed on a side surface, and a width of the notch is set. A hose weight for a breathing apparatus, wherein the hose weight is formed to have a size smaller than an outer shape of a hose to be attached, and is attached from a side of the hose which is elastically deformed. 2. A method for assembling a hose weight for adjusting the buoyancy of a hose in a semi-closed respirator using a respiratory gas by removing carbon dioxide from the respiratory gas circulating in a respiratory circuit. Assembling a hose weight formed with a notch for dividing the ring on the side surface between the plurality of collars provided at predetermined intervals on the side surface from the side of the hose through the notch of the ring. Characteristic hose weight assembly method.