JP2001130483A - Buoyancy adjusting jacket for diving - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a vest portion as a life jacket having a safety and an optimality by setting a knapsack part and the vest portion separable and removing elements against buoyancy and obstructive portions from the vest portion having an original buoyancy function. SOLUTION: The vest portion 32 and knapsack part 33 of a buoyancy adjusting jacket 31 for diving are formed separately and connected detachably so as to be separable from each other when required.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diving buoyancy adjusting jacket worn by a diver to adjust the buoyancy on the water surface and in water, and more particularly to a diving diver whose vest can be used as a lifesaving device. Related to buoyancy adjustment jacket.

[0002]

2. Description of the Related Art A life-saving device mounted on an aircraft or the like which is well known as a life vest is only a floating ring-shaped bag through which a neck is passed, and is thin under the armpits or inseam for the purpose of preventing the bag from floating. I try to pass a belt and a string,
This ensures the buoyancy of the wearer. However, when the conventional lifesaving device is worn, it is difficult to find a thin belt or string, and it is difficult to handle it.

On the other hand, a buoyancy adjusting jacket for diving is used to adjust buoyancy by recovering buoyancy lost due to depth while diving. Generally, this buoyancy adjustment jacket is generally composed of a backpack called a harness for attaching and detaching an air tank, and a bag portion for imparting buoyancy. Usually, this bag portion has a vest form worn on the upper body of a diver. The backpack and the vest are integrally formed. Divers are divers.

In other words, the diving buoyancy adjusting jacket has a structure in which a rigid support plate having shape-retaining property is attached to a central back portion of a vest portion, and an air tank is detachably attached to the outside of the support plate. . In this case, conventionally, when the diver wears the best part, the diver can carry the air tank as it is. However, when the best part also serves as a backpack like this,
A large load of the air tank acts on the vest portion. For this reason, even though the vest portion is fastened and fixed around the belly by the belt, the vest portion inevitably slips down or shifts laterally when a water flow acts, thereby deteriorating the stability of the air tank.

A diving buoyancy adjustment jacket designed to improve the stability of an air tank has been proposed by the present applicant in Japanese Patent Application No. 9-55269 (Japanese Patent Application Laid-Open No. 10-25068).
No. 4). This means that a shoulder belt is provided on a rigid support plate that has shape retention attached to the backpack part where the air tank is attached and detached, that is, the central back part of the vest part, and the shoulder belt allows the diver to directly support the load of the air tank. It was done. Therefore, in this buoyancy adjustment jacket, since the load of the air tank is supported exclusively by the shoulder belt, the vest portion does not act on the load of the air tank at all,
It can be used for original buoyancy adjustment.

By the way, even in the diving buoyancy adjusting jacket according to the applicant of the present invention which has been improved in this way, and of course, in the conventional jacket, the bag-shaped vest portion has a buoyancy function. Therefore, it is conceivable to use this as a life jacket when the air tank is not mounted. And if the buoyancy adjustment jacket for diving can be used as a life jacket in this way, even when performing multipurpose leisure such as skin diving, surf fishing, and boating besides scuba diving, a separate life jacket can be used. The buoyancy adjusting jacket can be used without preparing, and the number of tools to be carried can be reduced.

[0007]

However, in the conventional diving buoyancy adjusting jacket, regardless of the improved type and the conventional type, the backpack for attaching and detaching the air tank and the vest for adjusting the buoyancy are integrated. However, the backpack is made of a rigid support plate, which not only has no buoyancy function, but also acts in the direction of sinking by its weight, and has fixed parts such as belts and buckles for fixing the air tank. There is a possibility that the fixed portion may interfere with the algae or the rope as an obstruction, thereby causing a hindrance to the emergency action.

[0008] Incidentally, there is a case where a rescue worker who performs rescue work from a helicopter in a marine accident or the like performs work while wearing a conventional jacket as a lifesaving device in consideration of diving work. In such a case, the belt or buckle attached to the jacket may be caught by the work rope or the like, which may hinder the work, and in some cases, may cause an accident such as a fall of the rescue personnel. Was.

[0009] Under the circumstances described above, the conventional buoyancy adjusting jacket has hardly been used for purposes other than scuba diving in consideration of safety and the like. Therefore, for other uses for which a life vest is required, it is necessary to separately carry a life vest dedicated to the use of the life vest, which increases the number of tools to carry and increases the cost of preparing the life vest. I will.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to make it possible to separate a backpack and a vest portion from a vest portion having an original buoyancy function and to remove an element or a component against buoyancy. It is an object of the present invention to provide a dive buoyancy adjustment jacket in which a disturbing portion is removed so that the vest portion can be used as a life jacket with safety and optimumness.

[0011]

In order to achieve the above object, a diving buoyancy adjusting jacket according to the present invention is formed of a flexible hollow bag, into which gas can be supplied or discharged. A vest part to be worn on the upper body of the diver and a backpack provided on the center back of the vest part and having a shape retaining property for attaching an air tank are provided, and the vest part and the backpack are separately formed. And the vest portion and the backpack can be separated from each other.

In this configuration, the vest portion and the backpack can be separated from each other, and by removing the backpack from the vest portion, the weight of the backpack itself and the fixed portion of the air tank can be eliminated from the vest portion. Therefore, the vest portion becomes lighter, and there is no tank belt or buckle that cannot be removed in the way of the tank fixing portion, so that the safety and the optimality can be ensured even when used as a life jacket. In addition, since the vest of the buoyancy adjusting jacket can be used as a life jacket as described above, it can be used for general leisure in the sea and lakes other than scuba diving to reduce water accidents, and for multipurpose leisure. Since one buoyancy adjustment jacket can be used, the number of tools to be carried can be reduced, thereby reducing costs and carrying easily. Further, since the vest portion and the backpack can be separated, the separated tools can be efficiently and compactly stored at the time of packing, and the portability thereof can be further improved.

It is preferable that an opening for inserting a wearer's head is formed in a central back portion of the vest portion to which the backpack is attached, and the opening is closed by the backpack when the backpack is mounted. .

In this configuration, the vest is turned upside down, that is, the original back is placed on the abdomen, and the head is inserted into the opening formed in the center back of the vest and inserted up to the neck. In this state, the vest portion can be mounted on the upper body of the wearer. In addition, when the head is out of the water surface and floats, the gas in the vest moves upward by water pressure and accumulates at the upper end of the opening, so that this part bulges and becomes a pillow shape. For this reason, by placing the occiput here, it is possible to float in an easy posture, thereby making it easy to rest on the water surface. Further, when the backpack is connected to the vest portion, the opening is closed by the backpack, so that the area of the opening can be minimized to allow passage of the head. For this reason, the entire area of the hollow bag-shaped portion of the vest portion into which the gas is injected can be made at least the same as that of the conventional one, and the buoyancy function can be sufficiently obtained.

Furthermore, it is preferable that a supply port communicating with the inside of the vest portion is provided, and a carbon dioxide gas supply means for introducing pressurized carbon dioxide gas through the supply port is provided in the vest portion.

In this configuration, when the gas inside the hollow bag in the vest portion is insufficient and a predetermined buoyancy cannot be obtained, pressurized carbon dioxide gas is introduced into the hollow bag from the carbon dioxide gas supply means through the supply port. The buoyancy of the vest can be adjusted. That is, in the buoyancy adjustment jacket dedicated to diving, air is supplied from the air tank into the hollow bag body of the vest portion to adjust buoyancy, but when the vest portion is used as a life jacket, the air tank as a gas supply source has been removed. The buoyancy cannot be adjusted because it is in a state. However, in this configuration, the buoyancy can be easily adjusted by providing the carbon dioxide gas supply means, and a predetermined buoyancy can be obtained even in an emergency. Also, since the gas to be injected is carbon dioxide, the safety is high.

Furthermore, it is desirable that a shoulder belt to be hung by a diver be attached to the backpack, and that the load of the air tank fixed to the backpack via the shoulder belt be directly supported by the shoulder of the diver.

In this configuration, since the load of the air tank does not act on the vest portion at all, a portion for covering the shoulder is not required at the vest portion. Therefore, the outer contour of the upper end edge of the vest portion is eliminated by eliminating the arm penetration portion. Can be shaped to descend from the wearer's shoulder and pass through both sides. For this reason, it is easy to use the vest portion as a life vest and turn the vest back and forth, that is, to attach the original back to the abdomen.

[0019]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1
6 shows an embodiment of a diving buoyancy adjusting jacket according to the present invention, FIG. 1 is a perspective view showing an entire jacket structure in which a vest portion and a backpack are combined, and FIG. 2 is a rear view in which the vest portion is developed. 3 is a rear view showing a backpack, FIG. 4 is an explanatory view showing a contour shape in which a vest portion is developed, FIG. 5 is a perspective view showing connecting means of the backpack and the vest portion, and FIG. It is a perspective view which shows one used example.

As shown in FIG. 1, a dive buoyancy adjusting jacket (hereinafter referred to as a buoyancy adjusting jacket) 31 of the present invention is basically a vest formed of a hollow hollow bag having flexibility. A portion 32 and a backpack 33 provided on a central back portion 32a of the vest portion 32 and having shape retaining properties for attaching an air tank. The intended use of the buoyancy adjustment jacket 31 is as follows.
It is worn by a diver (not shown) to adjust the water surface and buoyancy in water when diving such as scuba diving.

The buoyancy adjusting jacket 31 of the present invention
2 and 3, the vest portion 32 and the backpack 33 are separately formed as shown in FIGS. 2 and 3, and these are removably connected as shown in FIG. The vest portion 32 and the backpack 33 can be separated from each other as necessary. Hereinafter, specific configurations of the vest portion 32 and the backpack 33 and functional components provided in each of them will be sequentially described.

(1) Structure of Vest Portion As shown in FIGS. 1 and 2, the vest portion 32 has flexibility ranging from a central back portion 32a surrounding at least the back and body side of the upper body of the diver to both abdominal portions 32b, 32b. It is formed of a hollow bag, into which gas is supplied or discharged, and is inflated and contracted. At this time, as shown in FIG. 4, the vest portion 32 is formed with a height Ha whose central back portion 32a covers the back of the diver,
Both abdominal parts 32b, 32b are formed with a height dimension Hb covering the belly below the arm position of the diver, and the outer contour of the upper end edge 32c of the vest part 32 is defined by the central back part 32a and the two abdominal parts 32b, 32b. It is formed so as to descend from the diver's shoulder and pass under the armpit.

That is, the vest portion 32 is formed as a foldable hollow bag body by a flexible airtight material that expands and contracts due to the supply and discharge of air, and the overall shape of the vest portion 32 is as follows. A pair of left and right abdominal portions 32b, 32 wrapping around the body side of the diver are provided on both sides of a central back portion 32a which is located on the back of the diver and wraps the diver.
b has a convex shape formed continuously. Further, a supply / exhaust mechanism described later, which supplies and exhausts air to the vest portion 32, is directly attached to at least one of the both side abdomen portions 32b, 32b of the vest portion 32.

At the lower part on the inner side of the vest part 32, strips 35, 35,.
and a belt 3 provided with a detachable buckle 36 and arranged at appropriate intervals from the center back portion 32a to the center back portion 32a.
7 are passed through gaps between the strips 35, 35,... And the vest portion 32 and are held by the vest portion 32, and are provided so as to span between the abdominal portions 32b, 32b on both sides. The diver can attach and detach the buckle 36 to take off and attach the jacket 31, and tighten the belt 37 with the buckle 36 so that the vest portion 32 can be brought into close contact with the body.

The air supply / exhaust mechanism includes one for air supply.
One intake valve 38, one foldable flexible blow-in pipe 39 with stopper, and two exhaust valves 40, 40 including spare for exhaust.
And pull cords 42, 42 with operation knobs 41, 41 for operating the exhaust valves 40, 40, respectively. These valves 38, 39, 40, and 40 are generally known and have the same configuration as that of the related art. In the present embodiment, in particular, using the carbon dioxide cartridge 50,
Supply port 51 for injecting pressurized carbon dioxide gas to be supplied
Is newly provided for supply.

The air supply valve 38 is attached to at least one of the left and right abdominal portions 32b, 32b of the vest portion 32, and is mounted in a range from the flanks to the front side where the diver's hand can easily touch naturally. The air supply valve 38 may be any of a conventionally known push button operation type and slide operation type valve. And this air supply valve 3
8 is provided with an air passage communicating with the inside of the vest portion 32 as in the prior art, and is connected to a medium pressure inflator hose of a regulator connected to an air tank (not shown). The air in the medium pressure inflator hose is fed into the vest portion 32 through the air passage, and the vest portion 32 expands, thereby increasing the buoyancy.

Blow-in pipe 39 with stopper
Also, at least one of the left and right abdominal portions 32b, 32b, the diver's hand is attached in a range from the side to the front side where the diver's hand is easy to touch naturally. In the illustrated example, the pipe 39 is entirely bent and folded from the lower edge 32d side of the vest portion 32 to the upper edge 32c side along the outer contour of the abdomen 32b, and communicates with the inside of the vest portion 32. The base end is connected to the lower part of the vest portion 32. Then, when air is blown into the mouth with the blowing portion 39a at the distal end arranged at the upper end edge 32c of the abdomen of the vest portion 32, air is sent into the vest portion 32 so that it can be inflated. Has become.

The two exhaust valves 40, 40 have a conventionally well-known configuration, and are mounted in a pair on the left and right above the central back portion 32a of the vest portion 32. These exhaust valves 40, 40 are provided with pull cords 42, 42 with operation knobs 41, 41 for operating the exhaust valves 40, 40, respectively. The vest portion 32 is provided with guide tubes 44, 44 having a considerable length from the central back portion 32a to the abdominal portions 32b, 32b along the upper edge 32c, and the drawstrings 42, 42 are attached to the guide tubes 44, 42. It is slidably inserted into 44.

The drawstrings 42, 42 have their base ends pulled out from one ends of the guide tubes 44, 44 connected to the exhaust valves 40, 40, respectively.
Operation knob 41,
The operation knobs 41, 41 are the right and left abdominal parts 32b, 32b on the left and right sides of the vest part 32, and are located in a range from the side to the front side where the diver's hand can easily touch naturally. ing. When the diver pulls down the operation knobs 41 and 41 to pull the drawstrings 42 and 42, the exhaust valves 40 and 40 urge the diaphragm for opening and closing the exhaust port of the vest portion 32 (not shown) to the closed position. Drawstrings 42, 4 against springs
2 moves the diaphragm to the open position to open the exhaust port, whereby air is exhausted from the upper portion of the central back portion 32a and the vest portion 32 contracts, thereby reducing buoyancy. .

The carbon dioxide gas supply port 51 is provided at one of the left and right abdominal parts 32b, 32b, and is provided in a range from the flanks to the front side where the diver's hands can easily touch naturally. In the present embodiment, the supply port 51 is disposed in the vicinity of the air supply valve 38 and obliquely upward from the arrangement portion thereof toward the central back portion 32a. The supply port 51 is provided with an insertion port 51a at the tip end portion 50a of the carbon dioxide gas cartridge 50, and by pulling down a knob-shaped operation part 52 suspended by a cord, the carbon dioxide gas cartridge inserted into the insertion port 51a is lowered. A hole is made in the distal end portion 50 a of the cartridge 50, and pressurized carbon dioxide gas in the cartridge 50 is introduced into the supply port 51. Then, the carbon dioxide gas introduced into the supply port 51 is vigorously injected into the vest portion 32. At this time, the carbon dioxide cartridge 50 is detachably inserted into and fixed to a fastening band 53 having both ends attached to the vest portion 32.

(2) Structure of the backpack On the other hand, the backpack 33 is generally constructed by overlapping a base plate 33a to which a shoulder belt 34 is attached and a tank plate 33b to which an air tank T shown by a two-dot chain line in FIG. You. The base plate 33a is formed so that the upper part located on the neck base side of the diver is narrow and the lower part located on the waist side is wide, and the width is sufficiently larger than the air tank T so that the diver can carry the diver without discomfort. Is available. On the other hand, the tank plate 33
b is formed in a vertically long rectangular shape slightly narrower than the air tank T, and the tank plate 33b is
It is arranged at the center of 3a, and both are connected by a bolt 33c and a nut (not shown). Both of the plates 33a and 33b are made of a member having a shape retaining property, for example, a plate made of a hard synthetic resin, so that even when the air tank T is carried on its back, it is not easily deformed by the load. In this case, both plates 33a, 33b
The material can be different between them.

On the back surface of the tank plate 33b, that is, substantially at the center on the front side in FIG. 3, a notched anti-slip 47 is fastened together with the bolt 33c, and the base plate is located on both sides of the anti-slip 47. A fastening belt 46 for fixing the air tank is provided from 33a. Therefore, by tightening the air tank T with the tightening belt 46, the air tank T is fixed to the backpack 33 in a form pressed against the slip stopper 47.

A pair of shoulder belts 34 are provided symmetrically on the backpack 33. The upper ends of the shoulder belts 34 are fixed to the left and right corners of the upper end of the base plate 33a, and the lower ends of the shoulder belts 34 are the base plate 33a. It is fixed at the lower left and right corners. Further, each shoulder belt 34 can be freely tightened by a buckle 49 provided at an intermediate portion, so that the length of the shoulder belt 34 can be adjusted according to the body type of the diver.

(3) Connection structure between vest portion and backpack As described above, the vest portion 32 and the backpack 33 are
As shown in FIGS. 2 and 3, each is formed separately, and when used as a buoyancy adjustment jacket 31 for scuba diving, a vest portion 32 and a backpack 33 are used.
And are integrated with each other. That is, as the coupling structure at this time, an opening 60 having substantially the same shape as the tank plate 33b of the backpack 33 is formed at the central back portion 32a of the vest portion 32, and a pair of upper and lower ends of the opening 60 are formed. A total of six fixed belts 61 are attached to the left and right sides closer to the center, two pairs in a direction toward the center of the opening 60.

On the other hand, the tank plate 3 of the backpack 33
At the upper and lower ends of 3b, triangular brackets 62 each having an apex at a position corresponding to the three fixed belts 61 in each of the six fixed belts 61 as a group of three at the top and bottom are provided. The brackets 62 are vertically symmetrically arranged, and are fastened together by the bolts 33c. Each bracket 62 is formed of a metal plate having corrosion resistance and rust prevention, for example, a stainless steel plate, and a buckle 63 as shown in FIG. The fixing belt 61 corresponding to each is inserted and fastened and fixed. At this time, the fixing structure of the fixing belt 61 is not limited to the buckle 63. For example, a hook 64 is provided on the fixing belt 61 as shown in FIG. You may be made to catch on. The bracket 62 is not limited to a metal plate, but may be formed of a plastic plate, cloth, or the like.

Therefore, when connecting the vest portion 32 and the backpack 33, the backpack 33 is connected to the vest portion 32.
2 (from the back side in FIG. 2), the tank plate 3
3 and the opening portion 60 of the vest portion 32 are aligned with each other, and the fixing belts 61 at six locations are fastened and fixed to the corresponding buckles 63 respectively. Then, with the tank plate 33 facing outward from the opening 60, the vest portion 32 and the backpack 33 are integrated and function as the buoyancy adjusting jacket 31.

With the above configuration, the buoyancy adjusting jacket 31 of the present embodiment can be used for the original scuba diving while the vest portion 32 and the backpack 33 are integrally connected. By releasing the fixing band 61 from the buckle 63 connecting the two, the vest portion 32 and the backpack 33 can be separated from each other. Thus the best part 3
By separating the backpack 33 from the backpack 2, the vest portion 32 becomes lighter because the weight of the backpack 33 is eliminated, and the protrusions of the tightening belt 46 for fixing the air tank provided on the backpack 33 and the buckle 63 are provided. Parts can be eliminated. Therefore, even when the separated vest portion 32 is used as a life vest, the safety and the optimality of the life vest can be ensured because there are no obstacles that are lightweight and obstructed by algae and rope.

The buoyancy adjusting jacket 3
Since the vest portion 32 can be used as a life jacket, it can be used for general leisure in the sea and lakes other than scuba diving to reduce water accidents, and one buoyancy adjustment jacket 3 for multipurpose leisure.
Because we can cope with 1, we reduce point of equipment to carry,
This reduces the costs involved and makes it easier to carry.
Further, since the vest portion 32 and the backpack 33 can be separated, the separated tools can be efficiently and compactly stored at the time of packing, and the portability thereof can be further improved.

Here, when the backpack 33 is separated, the vest portion 32 moves the tank plate 33b of the backpack 33.
An opening 60, into which is fitted, is formed in the central back part 32a, and the opening 60 can be inserted into the head 71 of the wearer 70 by pushing open both sides thereof. . Accordingly, in the present embodiment, the vest portion 32 is turned back and forth so that the back portion 32a thereof is positioned on the abdomen of the wearer 70 as shown in FIG. The vest portion 32 can be attached to the upper body of the wearer 70 in this state.

In the buoyancy adjusting jacket 31 of this embodiment, a shoulder belt 34 is provided on the backpack 33, and the load of the air tank T mounted on the backpack 33 is directly transferred to the shoulder portion of the diver via the shoulder belt 34. The vest part 32
Does not act on the load of the air tank T at all. For this reason, the vest portion 32 does not require a portion that covers the diver's shoulder.
As shown in the figure, the outer contour of the upper end edge 32c descends from the shoulder of the wearer 70 and has a shape passing through both sides. For this reason, as described above, when the vest portion 32 is used as a life jacket and the vest portion 32 is mounted upside down,
2a may be applied from the chest to the abdomen of the wearer 70, and the abdominal portions 32b may be turned to the sides and fixed with the belt 37. In other words, it is not necessary to pass the arm through, so that the wear is facilitated. In this mounting state, the armpits of the wearer 70 can be held by the abdomen 32b on both sides of the vest portion 32, so that the upper body of the wearer 70 can be prevented from falling out of the vest portion 32, and the safety at the time of mounting Nature can be secured.

The vest portion 32 is used as a life jacket, and the head 7 is inserted into the opening 60 as shown in FIG.
When resting on the water surface with 1 inserted, the head 71 comes out of the water surface and floats, and the gas in the vest portion 32 moves upward by water pressure and accumulates at the upper end 32 e of the opening 60. . Therefore, since this portion swells and becomes a pillow shape, it is possible to float in a comfortable posture by placing the back head 71a on the pillow, thereby making it easy to rest on the water surface.

By the way, as shown in FIG. 1, when the vest portion 32 and the backpack 33 are connected, the opening 6
0 is fitted with the tank plate 33b of the backpack 33,
The opening 60 is closed by the base plate 33a. For this reason, the opening 60 has the same shape as the tank plate 33b, that is, the area of the opening 60 can be limited to a size that can be closed by the backpack 33. For this reason, since the opening area of the opening 60 is minimized to allow passage of the head 71, the entire area of the hollow bag-shaped portion of the vest portion 32 into which gas is injected is formed integrally with the backpack. Approximately the same as the conventional one. For this reason, even when the opening portion 60 is formed, the vest portion 32 can sufficiently obtain its buoyancy function.

The wearing state shown in FIG. 6 will be described in more detail. When the vest portion 32 is worn as a life-saving device, the head is passed through the opening 60 and the abdomen 32b on both sides is passed under the armpit. The floating of the vest portion 32 can be prevented, and the thin belt or string provided in the life-saving device mounted on an aircraft described in the related art becomes unnecessary. The vest portion 32 of the present embodiment can firmly fix the vest portion 32 as a life-saving device to the body only by tightening a single thick belt 37 around the waist attached to the vest portion 32. Can be easily worn in situations requiring When the vest portion 32 is sufficiently filled with gas,
The buoyancy around the back of the head of the wearer 70 can be secured at the collar portion of the vest portion 32, and the body of the wearer 70 can be supported from both sides underneath. Since a sufficient volume is secured around the abdomen, the air distribution inside the vest portion 32 tends to support the body of the wearer 70 on his / her back. As in the case of a floating ring-shaped bag, it does not fall into an unreasonable position such that only the head comes out on the water with the body standing and you must breathe while receiving water pressure on your chest, Excellent safety.

Also, when the vest portion 32 is used as a life jacket, it is necessary to inject gas into the hollow bag-like portion of the vest portion 32 to secure a certain amount of buoyancy. Since the air tank T is removed together with the air tank 33, the air supplied from the air tank T cannot be supplied to the air supply valve 38. For this reason, the air in the air tank T cannot be used for buoyancy, and the breath is blown into the vest portion 32 using the blowing pipe 39. However, it takes time to obtain a certain amount of buoyancy with a person's breath, and the labor becomes enormous. Further, in an emergency, it is impossible to function as a life jacket because it cannot be made in time.

In this embodiment, since the supply port 51 for supplying the pressurized carbon dioxide gas of the carbon dioxide cartridge 50 into the vest portion 32 is provided, the operation section 5 of the supply port 51 is provided.
By pulling 2, the carbon dioxide gas can be instantaneously introduced into the vest portion 32, and the buoyancy can be easily adjusted, and a predetermined buoyancy can be obtained even in an emergency. Also,
Since the gas to be injected is carbon dioxide, the safety is high.
When the gas in the vest portion 32 is exhausted, the vest portion 32 can be contracted by operating the operation knobs 41, 41 to operate the exhaust valves 40, 40.

By the way, the buoyancy adjusting jacket 3 of the present invention
1 is not limited to the convex shape of FIGS. 2 and 4 shown in the present embodiment, but is provided with a conventionally used arm insertion port to allow a diver to support the load of the air tank T via a vest portion. The present invention can be applied to a jacket of a form. Also, the case where the vest part is worn upside down has been described, but the effect of separating the vest part and the backpack can also be obtained when the vest part is worn in the normal way without being turned upside down. Of course, you can.

[0047]

As described above, in the buoyancy adjusting jacket for diving of the present invention, the backpack can be separated from the vest portion, so that the vest portion becomes lighter and the tank belt cannot be removed without disturbing the tank fixing portion. Even when the buckle is eliminated and the vest is used as a life jacket, its safety and optimality can be ensured. In addition, by applying the vest portion as a life jacket in this way, it is possible to reduce a flood accident by using it for general leisure in the sea or lake other than scuba diving. Furthermore,
Since one buoyancy adjustment jacket can cope with multipurpose leisure, it is possible to reduce the number of tools to be carried, reduce costs, and facilitate carrying. Furthermore, since the vest portion and the backpack can be separated, the separated tools can be efficiently and compactly stored at the time of packing, and the portability thereof can be further improved.

Further, by forming an opening for inserting the head of the wearer in the center back of the vest portion to which the backpack is attached, the vest portion is turned back and forth, and the head is inserted into the opening and the neck is inserted. With the part inserted, the vest part can be worn on the upper body of the wearer. Also, in a state where the head is out of the water surface and floats, the gas in the vest moves upward due to water pressure and accumulates at the upper end of the opening to form a pillow. This makes it possible to float in a comfortable posture, which makes it easier to rest on the water. Further, in a state where the backpack is connected to the vest portion, the opening is closed by the backpack, and the area of the opening is limited to a size that can be closed by the backpack, so that the passage of the head is permitted. Can be minimized. For this reason, the entire area of the hollow bag-shaped portion of the vest portion into which the gas is injected can be made at least the same as that of the conventional one, and the buoyancy function can be sufficiently obtained.

When the gas in the hollow bag at the vest portion is insufficient and a predetermined buoyancy cannot be obtained, pressurized carbon dioxide gas is introduced into the hollow bag from the carbon dioxide gas supply means through the supply port. As a result, the buoyancy can be easily adjusted, and a predetermined buoyancy can be obtained even in an emergency. Also, since the gas to be injected is carbon dioxide, the safety is high.

Further, a shoulder belt to be hung by a diver on a shoulder is attached to the backpack, and the load of an air tank fixed to the backpack via the shoulder belt is directly supported by the shoulder of the diver. Since no load acts on the vest, a portion for covering the shoulder is not required in the vest portion. For this reason, the outer contour of the upper end edge of the vest part can be made to descend from the wearer's shoulder and pass through both sides under the arm without the penetrating part of the arm, and when the vest part is used as a life jacket, This makes it easy to mount it upside down, that is, to mount the original back on the abdomen.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire jacket structure in which a backpack and a vest are combined according to an embodiment of the present invention.

FIG. 2 is an exploded rear view showing a vest portion according to the embodiment of the present invention.

FIG. 3 is a rear view of the backpack showing one embodiment of the present invention.

FIG. 4 is an explanatory diagram of a contour shape in which a vest portion is developed, showing one embodiment of the present invention.

FIG. 5 is a perspective view showing a connecting means of the backpack and the vest portion according to the embodiment of the present invention.

FIG. 6 is a perspective view of one use example in which a vest portion showing one embodiment of the present invention is mounted as a life jacket.

[Explanation of symbols]

 31 Diving buoyancy adjustment jacket 32 Best part 32a Central back part 32b, 32b Both side abdomen 32c Upper edge of best part 33 Backpack 33a Base plate 33b Tank plate 34 Shoulder belt 50 Carbon dioxide cartridge 51 Supply port 52 Operating part 60 Opening 61 Fixed belt 63 Buckle 70 wearer

Claims (4)

[Claims] 1. A vest portion formed of a flexible hollow bag body, into which gas can be supplied or discharged, and which is worn on the upper body of a diver, and an air tank provided on a central back portion of the vest portion. A buoyancy adjusting jacket for diving, which has a shape-retaining backpack for attaching the vest, and the vest portion and the backpack are separately formed and removably connected to each other, and the vest portion and the backpack are connected to each other. A buoyancy adjustment jacket for diving, characterized in that it can be separated into two parts. 2. An opening for inserting a head of a wearer is formed in a central back portion of the vest portion to which the backpack is attached, and the opening is closed by the backpack when the backpack is mounted. The buoyancy adjusting jacket for diving according to claim 1, wherein: 3. The vest portion is provided with a supply port communicating with the inside thereof, and the vest portion is provided with a carbon dioxide gas supply means for introducing pressurized carbon dioxide gas through the supply port. Item 3. The diving buoyancy adjusting jacket according to item 1 or 2. 4. A shoulder belt which a diver hangs on a shoulder is attached to the backpack, and a load of an air tank fixed to the backpack via the shoulder belt is directly supported by a shoulder of the diver. The buoyancy adjusting jacket for diving according to any one of claims 1 to 3.