JP3531670B2 - Inflatable neck vest - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a life jacket used for safety during sea fishing, boating, etc., and in particular, an inflatable type in which a floating bag is inflated when it falls into water. Regarding improvement of life jacket.

[0002]

2. Description of the Related Art Generally, as a life preserver used for safety during sea fishing, boating, etc., there is a type of life preserver in which a floating bag is automatically inflated in an emergency. For example, a neck-hanging inflatable life vest that hangs a deflated float on the neck beforehand, a foldable float that folds the deflated float beforehand on the waist, or a waistcoat that attaches a deflated float bag as a waistcoat. This is the type of inflatable life jacket.
The details of the neck-hanging inflatable life jacket are disclosed in Registered Utility Model Publication No. 3040268.

On the other hand, a life preserver of the type in which the floating bag is inflated automatically in such an emergency usually comprises an automatic gas filling device for automatically injecting gas into the floating bag, and the emergency itself occurs. In that case, the automatic gas filling device is operated to inflate the floating bag. Further, as the floating bag, a floating bag made of polyurethane coating / nylon cloth is usually used.

[0004]

By the way, in this conventional inflatable life-saving device, since the floating bag is usually composed of a polyurethane-coated nylon-pulled cloth floating bag, the surface area of the floating bag before it is inflated and after it is inflated. The surface area was almost the same, and therefore the bladder before inflating had to be made large in order to secure a predetermined buoyancy. Therefore, the floating bag (the floating bag before it is inflated) becomes a prize, and it is troublesome to wear it on a ship, on the coast, etc. at all times, and the operation after wearing tends to be sluggish. There is a problem that it is not optimal as a life-saving device when working on water or at the water's edge such as for ships and for coastal work), leisure, sports, etc.

On the other hand, the conventional waistcoat-type inflatable life jacket has a problem that it is troublesome to wear it, and it is apt to be shunned when it is worn in a hot season such as summer.

In view of the above circumstances, the present invention has a life jacket that is as small and compact as possible, and can be worn in a thick period with no support for movement by making it a neck-worn type. There was no swimming or surfing,
It is also an object of the present invention to provide a neck inflatable life jacket that can be worn at all times for work, leisure and sports on the water, including play at the waterfront and camping, and can avoid danger.

[0007]

In order to solve the above-mentioned problems, in the first invention of the present application, there is provided a stretchable tubular rubber forming a substantially annular neck insertion hole portion and a gas cylinder. An automatic gas filling device for inflating the tubular rubber by injecting the gas in the tubular rubber, and preventing the neck insertion hole from being reduced in size due to the inflation of the tubular rubber. In a neck-wearing inflatable life jacket, which is provided with a neck tightening prevention means for preventing tightening of the neck inserted in the insertion hole portion, the neck tightening prevention means is wound around the inner peripheral surface of the tubular rubber. Further, it is composed of a single band-shaped elastic member fixed to the inner peripheral surface of the tubular rubber, and the entire circumference of the neck insertion hole is formed only by the elastic member. Further, in the second invention of the present application, it has a stretchable tubular rubber forming a substantially annular neck insertion hole portion and a gas cylinder, and the gas in the gas cylinder is injected into the tubular rubber to form the tubular shape. Automatic gas filling device for inflating rubber, and neck tightening for preventing the neck insertion hole from being reduced in size by expansion of the tubular rubber and preventing tightening of the neck inserted in the neck insertion hole. In the neck-fitting inflatable life jacket including the preventing means, the neck tightening preventing means makes the thickness of the tubular rubber on the side of the neck insertion hole portion thicker than the thickness on the outer side.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The neck-inflatable life jacket according to the present invention will be described in detail below with reference to the neck-inflatable life jacket of the first embodiment and the neck-inflatable life jacket of the second embodiment. To do. 1st Embodiment of this invention Inflatable life jacket 1
1 is an inflatable life jacket of a type that is worn on a neck 31 as shown in FIG. 1, which is a conceptual diagram showing a state in which the neck-mounted inflatable life jacket 1 is attached, and includes a substantially annular neck insertion hole portion 2. An elastic tubular rubber 21 to be formed, an automatic gas filling device 8 (described later) for inflating the tubular rubber 21 by injecting the tubular rubber 21 into the tubular rubber 21, and the neck insertion hole 2 by the inflation of the tubular rubber 21. And a neck tightening prevention means 25 for preventing tightening of the neck inserted in the neck insertion hole 2.

Of these, the tubular rubber 21 is composed of a single elastic natural latex tubular rubber.

As shown in FIG. 2 which is a conceptual plan view of the neck-inflatable life jacket 1, the neck-tightening prevention means 25 has a cylindrical rubber 21 wound around the outer periphery thereof and has a cylindrical shape on the outer peripheral surface thereof. The elastic member 3 is composed of a single band-shaped elastic member 3 for fixing the rubber 21, and the neck insertion hole 2 is formed by detachably mounting one end 3a of the elastic member 3 to the other end side 3b. ing. The elastic member 3 is specifically made of a plastic member. Further, the elastic member 3 is provided with a connecting member 4 that detachably connects the one end 3a of the elastic member 3 to the other end side 3b and adjusts the size of the neck insertion portion 2. The connecting member 4 is arranged on the first magic tape 5 arranged on the entire inner peripheral surface of the elastic member 3 and on the outer peripheral surface of the one end 3 a of the elastic member 3, and is connected to the first magic tape 5. It is composed of a second magic tape 6.

A plastic accommodation chamber 7 is fixed to the other end 3b of the elastic member 3. The accommodation chamber 7 is made of plastic.
The automatic gas filling device 8 that is connected to the tubular rubber 21 and fills the tubular rubber 21 with gas is provided therein. This automatic gas filling device 8 supplies gas (CO2, etc.) 9 to about 10
Gas cylinder 10 for storing liter, and the gas cylinder 10
And the cylindrical rubber 21 are connected to each other, and the gas 9 in the gas cylinder 10 is connected to the cylindrical rubber 21 via the connecting portion 16.
A filling switch 11 for filling the same, and the filling switch 11
And the tubular rubber 21. The gas 9 injected into the tubular rubber 21 flows out from the tubular rubber 21.
And a check valve (not shown) that prevents the contraction of the valve. In addition, the filling switch 11 of these is
As shown in FIG. 3A, the sealing plate 10 of the gas cylinder 10
FIG. 2 is a diagram in which a lever portion including a pin 12 for opening a through hole 10b (described later) in a and a manual lever 13 for operating the pin 12, a water-absorbent paper and a spring are combined, and the lever portion is operated. The manual lever 13 is connected with a whistle 15 (FIG. 2) via a string 14. Further, the automatic gas filling device 8 having such a configuration is fixed to the other end side 3b of the elastic member 3 via the accommodation chamber 7 of FIG.

On the other hand, as shown in FIG. 2, one end side 21a of the tubular rubber 21 extends toward the other end side. Also,
The cylindrical rubber 2 is attached to the one end 21a of the cylindrical rubber 21 from the outside.
An auxiliary tube 22 for injecting the gas 9 is connected to 1, and the gas 9 injected into the tubular rubber 21 flows out from the auxiliary tube 22 at the tip of the auxiliary tube 22.
An unillustrated check valve for the auxiliary tube is provided to prevent the tubular rubber 21 from contracting.

Next, the operation of the above-mentioned neck-inflatable life jacket 1 will be described, and the structure will be described in more detail. For example, when carrying out any work on the water or at the waterfront, such as fishing or other boat work, coastal work, or swimming and surfing that has never been worn before, leisure and sports such as waterside play and camping, etc. , Wear this inflatable necklace 1. To wear the inflatable necklace life jacket 1, first, the first Velcro (registered trademark) 5 shown in FIG.
And the second magic tape 6 are released from each other, one end 3a of the elastic member 3 is separated from the other end side 3b, and the neck 31 from the separated one end 3a and the other end side 3b.
(FIG. 1) is inserted into the elastic member 3.

Next, when the first magic tape 5 and the second magic tape 6 are connected, a ring of the elastic member 3 is formed around the neck 31 (FIG. 1) and the tubular rubber 21 is formed. A substantially annular neck insertion hole 2 is formed, which allows the neck-mounted inflatable life jacket 1 to be easily attached to the neck 31 (FIG. 1). Since the first magic tape 5 which can be connected to the second magic tape 6 is arranged on the entire inner peripheral surface of the elastic member, the second magic tape 6 is connected to the first magic tape 5. The size of the neck insertion portion 2 can be adjusted by changing the position of the neck insertion portion 2. This allows the neck insertion portion 2 to have a size corresponding to the thickness of the neck 31 (FIG. 1) of the wearer of the inflatable life jacket 1. The neck insert 2 can be formed.

On the other hand, when an operator wearing such an inflatable neck life jacket 1 accidentally falls in water, pulling the string 14 shown in FIGS. 3), the actuating lever 13 connected to the cord 14 operates to move the pin 12 of the filling switch 11, thereby forming the through hole 10b in the sealing plate 10a of the gas cylinder 10, and then, as shown in FIG. As shown in (c), the gas 9 in the gas cylinder 10 is jetted, and the gas 9 is injected into the tubular rubber 21 (FIG. 2) via the connecting portion 16, so that the neck-mounted inflatable life-saving device is provided. The tubular rubber 21 that is the floating bag of the body garment 1 can be instantly inflated as shown in FIG.

Further, since the floating bag is composed of the elastic natural latex tubular rubber 21, the surface area of the floating bag before inflating is very small as shown in FIG. 1, but the floating bag is inflated. As shown in FIG. 4, the surface area of the floating bag afterward becomes much larger than the surface area of the floating bag before inflating (FIG. 1), so that a predetermined buoyancy can be secured and the necked expansion The safety of the wearer of the life preserver 1 can be ensured.

In addition, in this neck-mounted inflatable life jacket 1, since one end side 21a of the tubular rubber 21 is extended toward the other end side, the floating bag is also formed in front of the wearer. , Therefore, in water, etc., the neck-mounted inflatable life jacket 1
The wearer is placed in a supine position, which ensures safety. Note that FIGS. 3A to 3C
3 is a conceptual cross-sectional view of the automatic gas filling device 8 shown in FIG.
FIG. 3A is a state before the string 14 is pulled, and FIG.
FIG. 3C shows a state in which the through hole 10b is opened in the gas cylinder 10 by pulling.
It shows a state in which the gas 9 is ejected from b and the gas 9 is injected into the tubular rubber 21 (FIG. 2) via the connecting member 16. Further, reference numeral 16a shown in FIGS. 3 (a) to 3 (c)
Indicates a fitting hole into which the tubular rubber 21 is fitted.

The operation of pulling the cord 14 to inflate the tubular rubber 21 can be performed not only by the wearer of the neck-mounted inflatable life jacket 1 but also by a person near the wearer.
Even when the wearer loses consciousness or when the wearer is a child or the like, the tubular rubber 21 can be inflated to ensure the safety of the wearer.

When the wearer of the neck-up inflatable life jacket 1 accidentally falls into the water, water penetrates into the automatic gas filling device 8 and wets the water-absorbent paper in the working magazine (not shown). In such a case, the spring causes the actuating lever portion to automatically actuate, and the pin 12 opens the through hole 10b in the sealing plate 10a of the gas cylinder 10, so that the gas 9 jets from the gas cylinder 10 to save life. The gas 9 is automatically filled into the body 1 of the body, and the body 1 of the lifesaving body inflates instantly.

Further, the filling switch 11 and the tubular rubber 2
Since a check valve (not shown) is provided between the two, it is possible that the gas 9 injected into the tubular rubber 21 flows out from the tubular rubber 21 and the tubular rubber 21 contracts. Have been prevented. In addition, the tubular rubber 21 is externally attached to the tubular rubber 21.
Since the auxiliary tube 22 for injecting gas is provided in the case, when the gas 9 is insufficiently filled with the gas cylinder 10 as described above, the auxiliary tube 22 is used to put the gas near the wearer or near the wearer. An operator can inflate the tubular rubber 21 by blowing air (gas CO2) into the tubular rubber 21 serving as a floating bag from the mouth. Further, since a check valve for the auxiliary tube (not shown) is arranged in the auxiliary tube 22, the gas 9 injected into the tubular rubber 21
However, it is possible to prevent the tubular rubber 21 from contracting out of the auxiliary tube 22 as much as possible.

Further, the manual lever 13 of the filling switch 11
Since the whistle 15 is connected via the string 14, the wearer or the like can blow the whistle 15 to notify of an emergency when an emergency occurs such as falling into the water.

Further, in the inflatable neck-type life jacket 1 as described above, as described above, the floating bag is made of the elastic natural latex tubular rubber 21. As a result, as shown in FIG. As shown in Fig. 4, a floating bag with a very small surface area before being inflated (including the case of being folded) is made into a floating bag with a very large surface area to ensure a predetermined buoyancy. It is not necessary to increase the size of the floating bag (the floating bag before it is inflated) in order to ensure a certain buoyancy, unlike the nylon-bubbling floating bag.
The floating bag can be made small and compact by further preventing the floating bag from being worshiped outwardly with respect to the neck 31 (FIG. 1), and as a result, it can be inflated on a ship, on the coast, etc. The life jacket 1 can be easily worn at all times, and the operation after wearing it can be facilitated. Also,
Since the floating bag of the neck-mounted inflatable life jacket 1 is composed of elastic natural latex tubular rubber 21,
It is lighter than the conventional floating bag made of polyurethane coating / nylon pulling cloth, which makes it easy to wear the neck inflatable life jacket 1 at all times on the ship, on the coast, etc. It can be said that it is easy.

Moreover, when the tubular rubber 21 swells,
The elastic member 3 of the neck-mounted inflatable life jacket 1 prevents the size of the neck insertion hole 2 from being reduced by the expansion of the tubular rubber 21. Therefore, the neck 31 inserted into the neck insertion hole portion 2
It is possible to prevent (FIG. 1) from being tightened by the expansion of the tubular rubber 21 as much as possible. Therefore,
According to this neck-tie inflatable life jacket 1, it is the most suitable to be worn as a life preserver for work (for boats in the fishing industry or for coastal work), leisure, sports, etc. It is possible to provide a life-saving device, and in particular, a life-saving device that can be worn at all times even when there is no concept of wearing until now such as swimming in the sea, surfing, playing on the waterfront, camping, etc.

According to the neck-and-belt inflatable life jacket 1 which is small and compact as described above, the floating bag (cylindrical rubber 21) is placed between the head and the shoulder as shown in FIG. Since it can be attached to the recessed collar 31 (Fig. 1), this allows the neck-and-head inflatable life jacket 1 to be worn on board or on the coast.
Can be worn more easily at all times, and the action after wearing can be further facilitated. Further, since the neck-mounted inflatable life jacket 1 is to be attached to the neck 31 (FIG. 1) in advance, like the conventional life-saving device for a folding float, the folding float floated on water. The work of searching for is not required, which can increase the safety of the wearer.
In particular, when the wearer loses consciousness due to falling into the water, it is not possible to search for a life jacket, so this effect is effective.

Since the inflatable neck-wearing life jacket 1 is worn on the neck 31 (FIG. 1), it does not feel comfortable to wear compared to the conventional waistcoat type life jacket, and therefore it does not bother wearing. If easy Therefore, it can be worn at all times, and is easy to wear even when it is worn in hot seasons such as summer.

Further, in this inflatable neck-type life jacket 1, since the life jacket is attached to the neck 31 (FIG. 1) located relatively far to the water surface, it is attached to the waist relatively close to the water surface as in the conventional case. As compared with a life preserver (floating body, etc.), it is possible to prevent the life preserver from being splashed with water and accidentally inflating the floating bag. Therefore, workers often wet with water,
It is possible to provide a life preserver that is optimal for playing in the water.

Further, in this neck-mounted inflatable life jacket 1, as described above, the neck member is inserted by the connecting member 4 according to the thickness of the neck 31 (FIG. 1) of the wearer of the neck-mounted inflatable life jacket 1. Since the size of the part 2 can be adjusted, it is possible to prevent the neck inflatable life jacket 1 from falling out of the head of the wearer wearing the neck inflatable life jacket 1 as much as possible. ,
The safety of the wearer can be secured. In the neck inflatable life jacket 1 of this embodiment, the connecting member 4 is composed of the first magic tape 5 and the second magic tape 6 connected to the first magic tape 5. However, the connecting member 4 of the neck-mounted inflatable life jacket according to the present invention is not limited to the above-mentioned velcro tape, and the one end 3a of the elastic member 3 can be used.
It suffices that it is detachably connected to the other end side 3b.

Although the elastic member 3 is made of a plastic member in the neck inflatable life jacket 1 of the first embodiment, the elastic member of the neck inflatable life jacket of the present invention is used. 3 is not limited to plastic members,
Any elastic member may be used. In addition, in the neck-on inflatable life jacket 1 of this embodiment, the neck tightening prevention means 25 is composed of one strip-shaped elastic member 3. However, the neck of the neck-on inflatable life jacket 1 of the present invention is not limited to this. Tightening prevention means 25
Is not limited to the elastic member 3, and may be made of, for example, a tubular rubber itself which is a floating bag. Next, a description will be given of the neck-mounted inflatable life jacket 41 of the second embodiment in which the neck tightening prevention means 25 is made of a tubular rubber itself which is a floating bag. The neck inflatable life jacket 41 of the second embodiment
Then, the tubular rubber 21 and the neck tightening prevention means 25 of FIG.
In place of the elastic member 3 which is the above, an annular tubular rubber 42 is arranged as shown in FIG. In this tubular rubber 42, the thickness W of the tubular rubber 42 on the neck insertion hole 2 side is set to be thicker than the outer thickness X (W> X). The tubular rubber 42 is made of elastic natural latex tubular rubber. The configuration other than the tubular rubber 42 and the neck tightening prevention means 25 is the same as that of the neck-mounted inflatable life jacket 1 of the first embodiment. Note that FIG. 5 is a conceptual cross-sectional view of a main part showing a state in which the neck-mounted inflatable life jacket 41 made of the tubular rubber 42 is mounted.

The neck-mounted inflatable life jacket 4 of the second embodiment
In 1, the head is passed through the annular tubular rubber 42, and the tubular rubber 42 is placed on the neck 31 (FIG. 1) as shown in FIG. When the gas 9 is injected from the automatic gas filling device 8 of FIG. 3 or the auxiliary tube 22 (FIG. 1), the tubular rubber 42 can be inflated into a floating bag as shown in FIG. Since the thickness W of the hole side is thicker than the thickness of the outer tubular rubber 42 that is the thickness X, when the tubular rubber 42 is inflated, the outer tubular rubber 31 is moved to the neck insertion hole side tubular rubber 31. Since the tubular rubber 42 bulges outward with respect to the neck 31 (FIG. 1) as shown in FIG. 6, the size of the neck insertion hole 2 is increased by the expansion of the tubular rubber 42. It can be prevented from becoming as small as possible, which allows the neck 31 (Fig. 1) to be reduced. Tightening to prevent, it is possible to achieve the safety of the wearer. Even in the neck-inflatable life jacket 41 of the second embodiment, since the floating bag is made of the elastic natural tubular tubular rubber 41, the floating bag having a very small surface area (when folded, The gas 9 can be used as a floating bag having a large surface area to secure a predetermined buoyancy, which may cause the floating bag (the floating bag before being inflated) to bulge outward with respect to the neck 31 (FIG. 1). Needless to say, it can be prevented as much as possible, and it is lighter than the conventional floating bag made of polyurethane-coated nylon nylon cloth. It goes without saying that it can be made easier and the operation after wearing can be made easier. And yet again,
It can be worn at all times as a life-saving device for work (for boats in the fishing industry or for coastal work), leisure, sports, etc. when working on water or at the waterside. Needless to say, it is possible to provide a life-saving device that can be worn at all times for play near the water, camping, etc.

Since the neck-mounted inflatable life jacket 41 according to the second embodiment is mounted on the neck 31 (FIG. 1), there is no feeling of wearing as compared with the conventional waistcoat type life jacket.
Therefore, it is not troublesome to wear it, and needless to say, it is easy to wear even when it is hot during summer.

Further, in the neck-mounted inflatable life jacket 41 of the second embodiment, it is not necessary to separately provide the neck tightening prevention means 25 in addition to the tubular rubber 42, so that the first embodiment of the present invention is not provided. The number of parts can be reduced as compared to the neck-mounted inflatable life jacket 1.

The neck tightening prevention means 25 is used in the neck inflatable life jackets 1 and 41 of the first and second embodiments.
The elastic member 3 and the tubular rubber 42 are used as the elastic member 3 and the elastic member 3. However, the neck tightening prevention means 25 is not limited to these, and may be any member having a shape and width along the neck 31 (FIG. 1). On the inner or outer peripheral surface of the elastic natural latex-based tubular rubber tube, the neck 31 (Fig. 1)
It may be a metal member having a shape and a width conforming to the above. When the neck tightening prevention means 25 is composed of the elastic member 3 as in the neck inflatable life jacket 1 of the first embodiment, the automatic gas filling device 8 including the tubular rubber 21 and the gas cylinder 10 can be fixed. You can

[0033]

As described above, the neck-inflatable life jacket according to the first aspect of the present invention has the elastic tubular rubber forming the substantially annular neck insertion hole portion and the gas cylinder. An automatic gas filling device for inflating the tubular rubber by injecting the gas in the gas cylinder into the tubular rubber, and preventing the size of the neck insertion hole portion from being reduced by the inflation of the tubular rubber. A neck wearing inflatable life jacket, comprising neck tightening preventing means for preventing tightening of a neck inserted in the neck insertion hole portion, wherein the neck tightening preventing means is an inner circumference of the tubular rubber. A necklace that is wound around a surface and is made up of a single band-shaped elastic member that is fixed to the inner peripheral surface of the tubular rubber, and that forms the entire circumference of the neck insertion hole only by the elastic member. Because it is an inflatable life jacket, in order to secure a predetermined buoyancy as before, It is not necessary to form a large floating bag before entraining it, so it is possible to prevent the floating bag from being worshiped as much as possible and finish the life jacket as small and compact as possible. There is no support for movement, and because it can eliminate the feeling of wearing compared to the conventional waistcoat type life jacket, it can be worn even in thick times, and there is no concept of wearing until now such as swimming and surfing, playing near the water and It can be worn at all times for work, leisure and sports near the water, including camping, etc. to avoid danger. In addition, the neck-and-tilt inflatable life jacket of the second invention of the present application has a stretchable tubular rubber forming a substantially annular neck insertion hole portion and a gas cylinder, and gas in the gas cylinder is filled with the tubular rubber. Automatic gas filling device for inflating the tubular rubber by injecting it into the neck, and a neck inserted in the neck insertion hole while preventing the neck insertion hole from being reduced in size due to the inflation of the tubular rubber. And a neck tightening preventing means for preventing tightening of the neck wearing inflation type life jacket, wherein the neck tightening preventing means has a thickness of the tubular rubber on the side of the neck insertion hole which is outside Since it is a necked inflatable life jacket made thicker than the thickness, it is not necessary to form a large floating bag before inflating it in order to secure a predetermined buoyancy as in the conventional case, and therefore the floating bag may be worshiped as much as possible. To prevent the life jacket from being as small and compact as possible It can be lifted up and it can be worn around the neck so that there is no support for movement and it can be worn even compared to the conventional waistcoat type life jacket, so it can be worn even in thick times and has been worn until now. It is possible to avoid danger by always wearing it for all kinds of work, leisure and sports on the waterside, including swimming and surfing, where there was no concept of "," such as waterside play and camping.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a state in which a neck-mounted inflatable life jacket according to a first embodiment of the present invention is mounted.

FIG. 2 is a conceptual plan view of the neck-mounted inflatable life jacket shown in FIG.

3 (a) to 3 (c) are conceptual cross-sectional views of an automatic gas filling device 8 constituting the neck-mounted inflatable life jacket shown in FIG. 1, and FIG. Before drawing, Figure 3 (b)
FIG. 3C shows a state in which a string is pulled and a through hole is opened in the gas cylinder via the actuating lever, and FIG. 3C shows a state in which the gas is ejected from the through hole of the gas cylinder to fill the tubular rubber with the gas. Fig.

FIG. 4 is a conceptual diagram showing a state in which the cord of the neck-mounted inflatable life jacket of FIG. 1 is pulled to inflate the tubular rubber.

FIG. 5 is a conceptual cross-sectional view showing the appearance of a neck-mounted inflatable life jacket according to the second embodiment of the present invention.

FIG. 6 is a conceptual cross-sectional view of a main part showing a state where the tubular rubber of the neck-mounted inflatable life jacket of FIG. 5 is inflated.

[Explanation of symbols]

1, 41 ... Inflatable neck life jacket 2 ... Neck insertion hole 3 ... Elastic member 3a ... One end 3b ... other end side 4 ... Connecting member 8 ... Automatic gas filling device 9 ... Gas 10 ... Gas cylinder 10b ... through hole 11 ... Filling switch 12 ... pin 13 ... Manual lever 14 ... String 15 ... Whistle 21, 42 ... Cylindrical rubber 22 ... Auxiliary tube 25 ... Neck tightening prevention means 31 ... neck W: Thickness of neck insertion hole side X ... outer thickness

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B63C 9/08-9/18

Claims (7)

(57) [Claims] 1. A stretchable tubular rubber forming a substantially annular neck insertion hole portion and a gas cylinder, wherein the gas in the gas cylinder is injected into the tubular rubber to expand the tubular rubber. An automatic gas filling device, and neck tightening prevention means for preventing the neck insertion hole portion from being reduced in size by expansion of the tubular rubber and preventing tightening of the neck inserted in the neck insertion hole portion. In a necked inflatable life jacket, the neck tightening prevention means is a band-shaped member wound around the inner peripheral surface of the tubular rubber and fixed to the inner peripheral surface of the tubular rubber. The elastic wear member, and the entire circumference of the neck insertion hole is formed only by the elastic member. 2. The neck wear according to claim 1, wherein the neck insertion hole is formed by detachably mounting one end of the elastic member on an inner peripheral surface of the other end. Inflatable life jacket. 3. The elastic member is provided with a connecting member for detachably connecting the one end of the elastic member to the other end side and adjusting the size of the neck insertion portion. The inflatable neck-wearing life jacket according to claim (2). 4. An elastic tubular rubber forming a substantially annular neck insertion hole portion and a gas cylinder, wherein gas in the gas cylinder is injected into the tubular rubber to expand the tubular rubber. An automatic gas filling device, and neck tightening prevention means for preventing the neck insertion hole portion from being reduced in size by expansion of the tubular rubber and preventing tightening of the neck inserted in the neck insertion hole portion. In a necked inflatable life jacket, the neck tightening prevention means is configured such that the thickness of the tubular rubber on the neck insertion hole side is thicker than the thickness on the outer side. Inflatable life jacket. 5. An auxiliary tube connected to the tubular rubber for injecting gas into the tubular rubber from the outside, and an auxiliary tube for preventing the gas infused into the tubular rubber from flowing out of the auxiliary tube. A neck check-type inflatable life jacket according to claim 1, further comprising a check valve for use. 6. The automatic gas filling device comprises a pin for opening a through hole in the gas cylinder, and a filling switch composed of a manual lever for operating the pin, and is arranged between the filling switch and the tubular rubber. The neck expansion according to claim 1 or 4, further comprising: a check valve for preventing the gas injected into the tubular rubber from flowing out from the tubular rubber. Type life jacket. 7. The neck-wearing inflatable life jacket according to claim 6, wherein a whistle is connected to the manual lever of the filling switch via a cord.