JP7157400B2 - life jacket - Google Patents

Description

The present invention relates to life jackets.

When work such as construction work is performed at a high place where the water surface spreads downward, the worker must wear a full harness for fall prevention and also wear a life jacket. In this case, the life jacket worn by the worker should not interfere with the work.

In this regard, conventional life jackets have been used that are worn on the upper body, in which the buoyancy bag is folded in normal times, and inflated by putting the air in the cylinder into the buoyancy bag when falling into the water (for example, Patent Document 1 and Patent Reference 2.).

However, in the conventional technology, physical interference with a full harness is not taken into consideration, and it is difficult or impossible to wear a life jacket while wearing a full harness.

Japanese Patent No. 5107326 Japanese Patent No. 5401716

The problem to be solved by the present invention is to provide a life jacket that can be easily worn even when wearing a full harness.

The life jacket provided by the present invention comprises a back belt bifurcated into upper and lower parts, a D-ring attached to the upper bifurcated part of the back belt, and a bifurcated part at the lower part of the back belt. A full length belt comprising a waist belt attached to the divided part and a pair of left and right vertical belts connected to the extending side of the bifurcated part at the upper part of the back belt and connected to the waist belt and the leg belt. A life jacket worn by a wearer wearing a harness, the life jacket having a neck hole for the neck to pass through, and disposed below the collar to prevent the wearer from wearing the life jacket. a cover positioned from the chest to the torso and having a torso portion whose lateral width is smaller than the length between the pair of vertical belts of the full harness ;
a buoyancy bag that is housed inside the cover and has a filling member that fills the inside with air;
It is a life jacket with

ADVANTAGE OF THE INVENTION According to this invention, the life jacket which can be worn easily even if it wears a full harness can be provided.

The front view of the life jacket of 1st Embodiment. The rear view of the life jacket of 1st Embodiment. 3 is an exploded perspective view of the cover of the first embodiment; FIG. The front view of the bladder before inflation of the first embodiment. Fig. 3 is a rear view of the bladder before inflation of the first embodiment; The front view which shows the state which the wearer who mounted|worn the full harness wears the life jacket of 1st Embodiment. Fig. 2 is a rear view showing a state in which a wearer wearing a full harness wears the life jacket 1 of the first embodiment; The front view which shows the state in which the air bladder of 1st Embodiment was inflated. The front view of the life jacket of 2nd Embodiment. The rear view of the life jacket of 2nd Embodiment. The exploded perspective view of the cover of 2nd Embodiment. The front view of the bladder before inflation of the second embodiment. FIG. 11 is a rear view of the bladder before inflation of the second embodiment;

Hereinafter, one embodiment of the life jacket of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a front view of a life jacket 1 of this embodiment, and FIG. 2 is a rear view of the life jacket 1. As shown in FIG. 3 is an exploded perspective view of the cover 10, FIG. 4 is a front view of the bladder 20 before inflation, and FIG. 5 is a rear view of the bladder 20 before inflation.

As shown in FIGS. 1 to 3, the lifejacket 1 includes a cover 10 and an air bladder 20 that is folded and stored inside the cover 10. As shown in FIG.

The cover 10 includes a collar 11A arranged around the neck when worn, and a body 11B arranged below the collar 11A and arranged from the chest to the body when worn.

The collar portion 11A has a neck hole 10H for passing the neck in the central portion. The neck hole 10H has a necessary and sufficient size to allow the wearer's neck to pass therethrough, and is larger than the wearer's head and smaller than the circumference of the waist.

The collar portion 11A has reinforcing members 101 on the left, right, and upper portions of the edge of the neck hole 10H. The reinforcing member 101 has elasticity and rigidity and is made of synthetic fibers. By attaching this reinforcing member 101, it is possible to avoid damage to the cover 10 and improve the feeling of wearing the life jacket 1 around the neck.

The trunk portion 11B has a lateral width W1 smaller than a lateral width W2 of the collar portion 11A. In particular, in the life jacket 1 of this embodiment, the length W1 of the lateral width of the torso portion 11B is the length WG between the left and right vertical belts 30 (see FIG. 6) of the full harness separately worn by the wearer. less than

Therefore, the life jacket 1 does not physically interfere with the full harness separately worn by the wearer, and can be easily attached and detached.

A reflector 103 is attached to the trunk portion 11B.

The connection belt 201 of the air bladder 20 and the connection member 202A to the waist belt 202 are pulled out from the cover 10 and exposed.

The hook 12 is pulled out from the cover 10 and exposed.

As shown in FIG. 3, the cover 10 includes a front material 10A and a back material 10B.

The front material 10A and the back material 10B have the same shape. Also, detachable edge attachment members 102 such as hook-and-loop fasteners are provided on the edges of the front material 10A and the back material 10B. The backing material 10B is provided with an attachment hook 10C that is detachably connected to the cover attachment member 204 (see FIG. 4) of the bladder 20. As shown in FIG.

The front material 10A and the back material 10B are sewn together at the neck hole 10H, and a reinforcing member 101 is attached.

A hook 12 is attached to the upper end of the backing material 10B by a detachable attachment material. Detachable attachment materials include, but are not limited to, safety buckles, hook-and-loop fasteners, and the like. A safety buckle is an attachment that disengages and separates into two pieces when a predetermined load is applied. When using a safety buckle, the belt is passed through one of the pair of buckles, and the belt and the backing material 10B are sewn together. The other buckle is attached to the hook body 12A via a belt. As the safety buckle, for example, NPS-20 manufactured by Marzen Products Co., Ltd. can be used.

When using a hook-and-loop fastener, the hook surface 12C of the hook-and-loop fastener is attached, and the loop surface 12B of the hook-and-loop fastener of the hook 12 is attached to this hook surface 12C. A hook body portion 12A of the hook 12 is pulled out from the cover 10 and exposed.

Since the hook 12 is attached to the cover 10 by a detachable hook attachment member (a safety buckle or hook-and-loop fastener having a loop surface 12B and a hook surface 12C), it can be safely removed even when a large force is applied.

As shown in FIGS. 4 and 5, the air bladder 20 has a substantially rectangular shape with curved upper sides, and has a hole 20H for passing the neck slightly above the central portion.

The inflatable bladder 20 is formed by sandwiching two pieces of cloth having the same shape with a sheet of a thermoplastic resin such as urethane so as to prevent air from leaking from the inside, and then welding them together. On the front side of the bladder 20, a reflector 205, a cover mounting member 204 detachably connected to the mounting hooks 10C of the cover 10, and a filling member 206 for filling air into the bladder 20 are attached.

The filling member 206 has a blowing port 206A for blowing into the filling member 206, and a cylinder 206B filled with compressed gas. A filling mechanism 206C for filling the inside of the bladder 20 with gas and the like are included. 206E is a grab ball for the drawstring 206D.

Connecting belts 201 for connecting the vertical belt 30 of the full harness separately worn by the wearer and the air bladder 20 are provided at both ends of the lower end of the air bladder 20 .

The connection belt 201 includes a female belt 201A having a female connector at its end, and a male belt 201B having a male connector at its end.

At the lower end of the swim bladder 20, a waist belt 202 attached to the wearer's waist and a connecting member 202A connecting the swim bladder 20 and the waist belt 202 are provided.

FIG. 6 is a front view showing a life jacket 1 worn by a wearer wearing a full harness, and FIG. 7 is a rear view showing a life jacket 1 worn by a wearer wearing a full harness.

Here, the full harness will be explained. The full harness is arranged at the part corresponding to the back of the wearer, and includes a back belt 31 that is bifurcated at the top and bottom, a D ring 32 that is attached to the part where the back belt 31 is bifurcated at the top, and a back belt 31 at the bottom. A waist belt 34 attached to the bifurcated portion and a pair of leg belts 35 attached to the lower end of the back belt 31 are provided.

A back belt 31 bifurcated at the upper part has a pair of vertical belts 30 connected to a waist belt 34 from the front of the wearer via the chest and torso and further connected to leg belts 35 .

The wearer of the lifejacket 1 first attaches the hook body 12A to the D ring 32, passes the neck through the neck hole 10H of the lifejacket 1, and holds the lifejacket 1 so that the torso 11B hangs from the chest to the torso. to wear.

Further, the left and right connecting belts 201 are attached by being looped around the left and right vertical belts 30 of the full harness. Then, the waist belt 202 is wrapped around the waist.

In the life jacket 1 of this embodiment, the length W1 of the lateral width of the torso portion 11B is smaller than the length WG between the left and right vertical belts 30 of the full harness separately worn by the wearer.

Therefore, the life jacket 1 does not cover the vertical belt 30, and even when a lanyard 33 having a safety hook 33A at its end is connected to the vertical belt 30, physical interference with the lanyard 33 does not occur. Also when attaching the connecting belt 201 to the vertical belt 30, it can be quickly attached without rolling up the life jacket 1. - 特許庁

Furthermore, since the life jacket 1 does not hit both arms during work, it does not interfere with the work.

FIG. 8 is a front view showing a state in which the air bladder 20 is inflated. As shown in FIG. 8, when the bladder 20 is inflated, the force of expansion causes the edge attachment member 102 connecting the front and back members 10A and 10B of the cover 10 to be pulled apart. Furthermore, even if the wearer falls and the full harness is lifted and a large force is applied to the wearer's neck, the hook 12 can be detachable from the hook mounting member (safety buckle, loop surface 12B and hook surface 12C). Since it is attached to the cover 10 by a hook-and-loop fastener, the hook 12 is also removed and the neck is not tightened.

Since the cover 10 is not sewn to the air bladder 20 and the cover mounting member 204 is detachable, the cover 10 can be separated from the air bladder 20 and removed.

The life jacket 1 of this embodiment does not have a back belt that connects the upper end of the collar to the waist belt on the back of the wearer through the back of the conventional life jacket.

Therefore, in this respect as well, the life jacket 1 of this embodiment is easier to wear.

As described above, the life jacket 1 of this embodiment is arranged below the collar 11A and the collar 11A having the neck hole 10H for passing the neck, and when worn, it is positioned from the chest to the body. , a cover 10 having a body portion 11B in which the length W1 of the width in the left-right direction is smaller than the length WG between the pair of vertical belts 30 of the full harness separately worn by the wearer; It comprises a connection belt 201 connected to the vertical belt 30, a waist belt 34 that is wrapped around the wearer's waist, and an air bladder 20 having a filling member 206 that fills the inside with air.

Therefore, the life jacket 1 of the present embodiment does not cause physical interference with the vertical belt 30 of the full harness separately worn by the wearer, and can be easily put on even when wearing the full harness.

(Second embodiment)
The life jacket 2 of the present embodiment differs from the life jacket 1 of the first embodiment in that it has one trunk portion 11B, while the trunk portion 11B has a gap portion 11C. Due to this difference, the shape of the cover 40 of this embodiment differs from the shape of the cover 10 of the first embodiment.

9 is a front view of the life jacket 2 of this embodiment, and FIG. 10 is a rear view of the life jacket 2. As shown in FIG. 11 is an exploded perspective view of the cover 40, FIG. 12 is a front view of the bladder 50 before inflation, and FIG. 13 is a rear view of the bladder 50 before inflation.

As shown in FIGS. 9 to 13, the lifejacket 2 includes a cover 40 and an air bladder 50 that is folded and stored inside the cover 40 .

The cover 40 includes a collar 11A arranged around the neck when worn, and a body 11B arranged below the collar 11A and arranged from the chest to the body when worn.

The collar portion 11A has a neck hole 10H for passing the neck in the central portion. The neck hole 10H has a necessary and sufficient size to allow the wearer's neck to pass therethrough, and is smaller than the wearer's waist circumference.

The collar portion 11A has reinforcing members 101 on the left, right, and upper portions of the edge of the neck hole 10H. The reinforcing member 101 has elasticity and rigidity and is made of synthetic fiber. By attaching this reinforcing member 101, it is possible to avoid damage to the cover 40 and improve the feeling of wearing the life jacket 2 around the neck.

The trunk portion 11B has a gap portion 11C which is connected to the neck hole 10H at the middle portion in the left-right direction of the trunk portion 11B, extends downward in the vertical direction, and opens at the lower end of the trunk portion 11B.

Since the life jacket 2 of this embodiment has the gap 11C, it can be worn more easily.

The trunk portion 11B has a lateral width W3 smaller than a lateral width W4 of the collar portion 11A. In particular, in the life jacket 1 of this embodiment, the length W3 of the lateral width of the torso portion 11B is smaller than the length WG between the left and right vertical belts 30 of the full harness separately worn by the wearer.

Therefore, the life jacket 2 does not physically interfere with the full harness separately worn by the wearer, and can be easily attached and detached.

A reflector 103 is attached to the trunk portion 11B.

The connection belt 201 of the air bladder 50 and the connection member 202A to the waist belt 202 are pulled out from the cover 40 and exposed.

The hook 12 is pulled out from the cover 40 and exposed.

As shown in FIG. 11, the cover 40 includes a front material 40A and a back material 40B.

The front material 40A and the back material 40B have the same shape. Also, detachable edge attachment members 102 such as hook-and-loop fasteners are provided on the edges of the front material 40A and the back material 40B. The backing material 40B is provided with mounting hooks 40C that are detachably connected to the cover mounting member 204 (see FIG. 12) of the air bladder 20. As shown in FIG.

The front material 40A and the back material 40B are sewn together at the neck hole 10H and the gap 11C, and the reinforcing member 101 is attached.

A hook 12 is attached to the upper end of the backing material 40B by a detachable attachment material. Detachable attachment materials include, but are not limited to, safety buckles, hook-and-loop fasteners, and the like. A safety buckle is an attachment that disengages and separates into two pieces when a predetermined load is applied. When using a safety buckle, the belt is passed through one of the pair of buckles, and the belt and the backing material 40B are sewn together. The other buckle is attached to the hook body 12A via a belt. As the safety buckle, for example, NPS-20 manufactured by Marzen Products Co., Ltd. can be used.

When using a hook-and-loop fastener, the hook surface 12C of the hook-and-loop fastener is attached, and the loop surface 12B of the hook-and-loop fastener of the hook 12 is attached to this hook surface 12C. A hook body portion 12A of the hook 12 is pulled out from the cover 40 and exposed.

Since the hook 12 is attached to the cover 40 by a detachable hook attachment member (a safety buckle or hook-and-loop fastener having a loop surface 12B and a hook surface 12C), it can be safely removed even when a large force is applied.

As shown in FIGS. 12 and 13, the air bladder 50 has a substantially rectangular shape with curved upper sides, and has a hole 20H for passing the neck slightly above the central portion.

The air bladder 50 has an air bladder gap 50C that is connected to the hole 20H in the laterally intermediate portion of the air bladder 50, extends downward in the vertical direction, and opens at the lower end of the air bladder 50. As shown in FIG.

The inflatable bladder 50 is formed by sandwiching two pieces of cloth having the same shape with a sheet of a thermoplastic resin such as urethane so as not to leak the air inside, and welding them together. A reflector 205 , a cover mounting member 204 detachably connected to the mounting hooks 40</b>C of the cover 40 , and a filling member 206 for filling air into the bladder 50 are attached to the front side of the bladder 50 .

The filling member 206 has a blowing port 206A for blowing into the filling member 206, and a cylinder 206B filled with compressed gas. A filling mechanism 206C for filling the inside of the bladder 50 with gas and the like are included.

Connecting belts 201 for connecting the vertical belt 30 of the full harness separately worn by the wearer and the air bladder 50 are provided at both ends of the lower end of the air bladder 50 .

The connection belt 201 includes a female belt 201A having a female connector at its end, and a male belt 201B having a male connector at its end.

At the lower end of the swim bladder 50, a waist belt 202 attached to the wearer's waist and a connecting member 202A connecting the swim bladder 20 and the waist belt 202 are provided.

The state in which the wearer wearing the full harness wears the life jacket 2 is the same as the state shown in FIGS.

The wearer of the lifejacket 2 first attaches the hook body 12A to the D ring 32, puts the neck through the neck hole 10H of the lifejacket 2, and places the lifejacket 2 so that the torso 11B hangs from the chest to the torso. to wear.

Further, the left and right connecting belts 201 are attached by being looped around the left and right vertical belts 30 of the full harness. Then, the waist belt 202 is wrapped around the waist.

In the life jacket 2 of this embodiment, the length W3 of the lateral width of the torso portion 11B is smaller than the length WG between the left and right vertical belts 30 of the full harness separately worn by the wearer.

Therefore, the life jacket 2 does not cover the vertical belt 30, and even when the lanyard 33 having the safety hook 33A at its end is connected to the vertical belt 30, physical interference with the lanyard 33 does not occur. Also when attaching the connecting belt 201 to the vertical belt 30, it can be quickly attached without rolling up the life jacket 2. - 特許庁

Furthermore, since the life jacket 2 does not hit both arms during work, it does not interfere with the work.

In addition, since the life jacket 2 of this embodiment is provided with the gap 11C, it is easier to wear.

The state in which the air bladder 50 is inflated is the same as the state shown in FIG. 8 except that the air bladder gap portion 50C is present.

When the bladder 50 is inflated, the force of expansion causes the rim attachment member 102 connecting the front 40A and back 40B of the cover 40 to be pulled apart. Furthermore, even if the wearer falls and the full harness is lifted and a large force is applied to the wearer's neck, the hook 12 can be detachable from the hook mounting member (safety buckle, loop surface 12B and hook surface 12C). Since it is attached to the cover 10 by a hook-and-loop fastener, the hook 12 is also removed and the neck is not tightened.

Since the cover 40 is not sewn to the bladder 50 and the cover mounting member 204 is detachable, the cover 40 can be separated from the bladder 50 and removed.

It should be noted that the life jacket 2 of this embodiment does not have a back belt that connects the upper end of the collar to the waist belt behind the wearer via the back of the conventional life jacket.

Therefore, in this respect as well, the life jacket 2 of this embodiment is easier to wear.

As described above, the life jacket 2 of this embodiment is arranged below the collar 11A and the collar 11A having the neck hole 10H for the neck to pass through, and is positioned from the chest to the body when worn. , the length W3 of the width in the left-right direction is smaller than the length WG between the left and right vertical belts 30 of the full harness separately worn by the wearer, and the middle part in the left-right direction is connected to the neck hole 10H and downwardly. A cover 40 having a body portion 11B extending vertically and having a gap portion 11C opened at the lower end, a hole portion 20H housed inside the cover 40 and slightly above the center portion for passing the neck, and a left-right direction. The air bladder gap portion 50C is connected to the hole portion 20H in the middle portion, extends downward in the vertical direction, and is open at the lower end. 34, and a bladder 50 having a filling member 206 that fills the interior with air.

Therefore, the life jacket 2 of this embodiment does not cause physical interference with the vertical belt 30 of the full harness separately worn by the wearer, and has the effect of being easier to put on even if the wearer is wearing the full harness.

1 Life jacket 2 Life jacket 10 Cover 10A Surface material 10B Backing material 10C Mounting hook 10H Neck hole 11A Collar part 11B Body part 11C Gap part 12 Hook 12A Hook body part 12B Loop surface 12C Hook surface 20 Air bladder 20H Hole 30 Vertical belt 31 Back belt 32 Ring 33 Lanyard 33A Safety hook 34 Waist belt 35 Leg belt 40 Cover 40A Front material 40B Backing material 40C Mounting hook 50 Air bladder 50C Air bladder gap 101 Reinforcing member 102 Edge attachment member 103 Reflective material 201 Connecting belt 201A Female belt 201B male belt 202 waist belt 202A connecting member 204 cover mounting member 205 reflector 206 filling member

Claims (5)

A back belt bifurcated at the top and bottom, a D ring attached to the bifurcated portion at the top of the back belt, and a waist belt attached to the bifurcated portion at the bottom of the back belt. worn by a wearer wearing a full harness comprising a pair of left and right vertical belts connected to the stretched side of the bifurcated portion at the upper part of the back belt, the vertical belts being connected to the waist belt and the leg belts. a life jacket,
This life jacket
A collar portion having a neck hole for passing the neck through, and a neck portion disposed below the collar portion, and thewearer'sLocated from the chest to the torso, the length of the width in the left and right direction isthan the length between the pair of vertical belts of the full harnessa cover having a small body;
a buoyancy bag that is housed inside the cover and has a filling member that fills the inside with air;
A life jacket with The torso is
2. The life jacket according to claim 1, wherein the life jacket according to claim 1 has a gap connected to the neck hole in the middle part in the left-right direction, extending downward and opening at the lower end. The cover is
3. A life jacket according to claim 1 or 2 , wherein reinforcing members are provided on the left, right and upper sides of the edge of said neck hole. The cover is
4. A life vest according to any one of claims 1 to 3 , comprising hooks attached to said cover by means of attachment members detachable. The swim bladder is
5. The life jacket according to any one of claims 1 to 4 , further comprising a connecting belt connected to the full harness worn by the wearer.

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