JPS591034Y2 - floating jacket - Google Patents

Description

[Detailed description of the invention] This invention is a floating jacket worn by fishermen and marine players such as sailors, boats, and fishers for lifesaving purposes.

More specifically, when working at sea or on the beach,
To provide a jacket that has a function of sufficiently following the movement of the human body, can be worn as a normal jacket even on land, and can provide sufficient buoyancy to the human body even when jumping into the sea.

Conventionally, it has been known to use closed foams such as vinyl chloride and polyurethane for floating jackets, but it has not been known to use polyethylene foams.

Conventional floating jackets made of foam did not have the same drapability as woven or knitted fabrics and were very flexible, making them uncomfortable to wear, giving them a paper-like feel and not being fashionable.

It only had a life-saving function when the wearer jumped into the sea or was thrown out.

This idea uses a flexible closed-cell polyethylene sheet, and by considering how to use it, it is comfortable to wear, looks good, fits well on the body, and of course has a floating structure that gives buoyancy to the wearer underwater. The purpose is to provide jackets.

This invention has the following configuration in order to achieve the above-mentioned object.

In other words, in a jacket in which closed-cell foam resin is filled between the outer material and the lining, the front body part, the back body part, and
A flexible polyethylene closed cell foam sheet with different bending hardness in the horizontal direction is placed in the sleeve section, and the vertical and horizontal directions of the sheet are selected so that it is easy to bend in the length direction of the jacket and in the sleeve length direction. At the same time, another non-woven sheet is inserted into the two valve areas so as to polymerize the sheet, and the amount of the foam sheet used in the front body area is equal to that of the foam sheet in the back body area. It is a floating jacket that is larger than the amount used.

This idea will be explained with reference to the drawings.

Figure 1A. B is a front view and a side view of the jacket of this invention.

The front body 1 including the front yoke 2 and the back body 3 including the rear yoke 4 are each constructed of a quilted structure as shown in FIG. 2.

That is, a nonwoven fabric sheet 13 made of polyester or a mixed fiber of polyester and other fibers is sandwiched and quilted between the flexible closed-cell polyethylene sheet 11 and the outer material 12.

The outer material 12 is made of plain fabric (taffeta) made of nylon or polyester fibers, or a material treated with waterproof or repellent material.

Next, the side part 7 is made by quilting the outer material 12 and the nonwoven fabric sheet 13 as shown in FIG. When forming, it may be matched to the front and back body, sleeves and seams.

Alternatively, the back side of the nonwoven fabric sheet shown in FIG. 3 may be filled with a thin, flexible foam sheet similar to that of the main body.

The side portions 7 are thinner than the front and rear body portions due to the lack of foam sheet.

Therefore, it is preferable to use a nonwoven fabric sheet that is thicker accordingly.

In the sleeve part, the side part 7 may be extended and the sleeve part of the body may have the same structure as the side part, but the sleeve part of the sleeve 6 may have the same structure around the circumference 8. .

The collar 5 may have a structure as shown in FIG. 2 or 3, or a structure in which the foam sheet 11 is sandwiched between a front collar 15 and a back collar 16 as shown in FIG. 4.

Next, the sleeves 6 may have a structure as shown in FIG. 2 or 3, but if sufficient buoyancy cannot be obtained with the foam sheet 11 inserted in the front and back body and the collar, It is desirable to compensate for buoyancy by using a structure like .

In that case, it is desirable that the portion 9 corresponding to the elbow of the arm has a similar structure to that of the sleeve.

Here, the purposes and advantages of using the nonwoven sheet in the present invention are as follows.

In other words, the main body of the floating diquette according to the present invention basically uses a flexible closed-cell polyethylene sheet, but no matter how flexible it is, it has a shape that smoothly follows the movement of the human arm and the curvature of the human body. difficult to do.

Therefore, the foam sheet is not used in the armrests, waistbands, and armpits that require bending or curving.
It was filled with a flexible non-woven sheet.

Furthermore, by filling the above-mentioned portions with a nonwoven sheet, the heat retention of the entire jacket can be improved.

Furthermore, the texture and feel of the exterior are different between the areas filled with the non-woven sheet and the areas filled with the foam sheet, so in order to reduce this difference, the body etc. are placed between the foam sheet and the outer material. A non-woven sheet was added.

Although the explanation has been made in terms of the outer material and the filler material, it is desirable to use a lining material as appropriate when forming these garments.

The lining material is preferably taffeta made of nylon or polyester fibers.Next, how to use the foam sheet 11 and the amount used will be described.

Generally, the buoyancy of a foam sheet is determined by the expansion ratio.

That is, when the desired buoyancy is F, the expansion ratio is N, and the weight of the foam sheet used is G, G is expressed by equation (1).

G Once... (1) The polyethylene foam sheet used for this idea is 25-3
A 5-fold foamed sheet is desirable, with a thickness of about 3 mm to 5 mm, and a basis weight of 110 g/m 2 to 190 g/m 2 .

This invention allows the foam sheet to be used alone as a quilting sheet in some areas as shown in Figure 2.
In some places, the same foam sheet is inserted between the back side of the quilted sheet and the lining.

Since the polyethylene foam sheet is stretched in the length direction, the bending hardness in the vertical direction and the horizontal direction are different.

In other words, the bending stiffness is both vertical and horizontal.

Therefore, if at least the lining foam sheet is used in the horizontal direction in the length direction of the jacket, the jacket will have drapability in the length direction and will have firmness in the width direction.

If the foam sheet on the front side is not quilted to the outer material, it is preferable to remove this sheet from the side.

The portion where one foam sheet is used and the portion where two foam sheets are used will be explained with reference to FIGS. 5 and 6.

FIG. 5 is a cross-sectional view taken along line A-A' in FIG. .

On the other hand, the back body 3 is a single quilted sheet.

However, as shown in FIG. 6, which is a cross-sectional view taken along line B--B in FIG.

The reason for this is that with this kind of floating jacket, it is desirable for the wearer's body to be vertical or facing backwards at the sea surface, and if the buoyancy of the back body is greater than the front body, the body will lie face down and face up. It is dangerous because it will sink into the sea.

In this design, if we divide the body or the side line of the jacket (c-c' line in Figure 1B) into the front and rear, the amount of foam to be used will be as follows: front ≧ rear. It is necessary to increase the buoyancy of the area.

Preferably, (buoyant force at the front) - (buoyant force at the sleeves) ≧ (buoyant force at the rear).

When a person is floating on the sea surface, their arms are often pointing forward, so it is not necessarily the case that front buoyancy ≧ rear buoyancy (front buoyancy) + (sleeve buoyancy) ≧ (rear buoyancy) It is considered that the following relational expression is sufficient.

However, when pushing through water at the surface of the ocean, the arms may end up behind the armpits.

It is necessary to consider the reduction in buoyancy in the front section at that time to improve safety.

Generally, the back of a garment has a larger area than the front.

Therefore, if the same number of holes are made in each foam sheet, the balance of the buoyancy will be lost.

In order to maintain this balance, as explained in FIGS. 5 and 6, more foam sheets are used in the front body than in the back body.

A foam sheet with a thickness of 2 to 3 sheets may be used for the front body, but a thinner foam sheet must be used for the back body, and as mentioned above, only the back yoke should be made thicker. is extremely difficult in practice.

For this purpose, a foamed sheet having the thickness as described above is desirable, and is also preferable from the viewpoint of drapability to provide a shell for clothing.

Additionally, this type of jacket is about to be legally required to provide at least 7.5 kg of buoyancy.

A buoyant force of 7.5 kg is the buoyant force that would cause a person from the neck up to float above the sea surface.

When using a foam sheet as described above, the weight of the foam sheet used is 210 g to 300 g from equation (1).

If the average basis weight is 150 g/m2, 1.4 to 2.0 m2 is required.

Considering the pattern of the jacket, even if it is inserted as shown in Figures 5 and 6, the usable area is about 1 m''.

At this time, it is better to consider the balance of the usage amount and use it additionally on the front body and back body.

Alternatively, a separate buoyancy body may be attached to the jacket.

Since this invention has the above structure, even if a person wears this jacket while sailing, fishing or fishing and accidentally falls into the sea, the person's body can be floated to the sea surface in a comfortable position.

In addition, it has excellent functionality, allowing the arms and elbows to move easily, making it easy to wear and of course retaining its functionality even under the sea.

What's more, even when worn on land, the jacket is functional and fashionable, unlike conventional foamed polyethylene sheet jackets.

Example 1 Expansion ratio is about 30 times, thickness is about 4 mm, and basis weight is about 100 g/
M
I made a jacket for each part as shown.

The separate yoke is detachably attached to the jacket near the top of the shoulder, just like a swim bladder, and is used to compensate for the lack of buoyancy in the jacket itself.

In order to obtain a buoyant force of 7.5 kg, 7.5 k is calculated from equation (1).
g/30=250 g is required, and since the amount of foam sheet used exceeds this amount, sufficient buoyancy can be obtained.

Also, the front to rear ratio is front: rear = 145.9g: 11
It weighs 2.0g and the wearer, floating on the sea surface, turns slightly on his back.

[Brief explanation of the drawing]

Figures 1A and B are front and side views of the jacket of this invention, Figure 2 is a schematic diagram of the quilting used in the body area, Figure 3 is a schematic diagram of the quilting used in the armpit area, and Figure 4 is a schematic diagram of the quilting used in the armpit area.
The figure is a cross-sectional view of the collar, Figure 5 is Figure 1A (7) A-A'
Cross section, FIG. 6 is a 13-B' cross section. 1: Front body area, 2: Front yoke, 3: Back body area, 4: Back yoke, 5: Collar, 6: Sleeves, 7: Armpit area, 8: Around the sleeves, 9: Arm waist area , 11: Foam sheet, 12:
Outer material, 13: Nonwoven fabric sheet, 14: Quilting stitch.

Claims (1)

[Scope of utility model registration request] Flexible closed polyethylene foam sheets with different bending hardness in the vertical and horizontal directions are placed between the lining and outer material of the front body, back body, and sleeves in the length direction and sleeve length direction of the jacket. The vertical and horizontal directions of the sheet are selected and used so as to make it easy to bend, and another nonwoven sheet is inserted between the sheet and the outer material so as to overlap each other, A floating jacket characterized in that the amount of the foam sheet used in the front body portion is greater than the amount of foam sheet used in the rear body portion.