JPH0241401Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is flexible, waterproof, and water resistant, and can be formed with an extremely thin overall thickness.
The present invention relates to a low-pressure check valve suitable as an exhaust valve for cold- and water-resistant clothing and immersion suits worn by workers engaged in maritime operations.

[Conventional technology]

Cold- and water-resistant clothing, which is useful for crew members of fishing boats and other vessels engaged in work at sea in cold weather, or worn in the event of a marine accident, is usually made of rubber or synthetic material that is waterproof and water-resistant. The upper, lower body parts, and head hood are integrally formed using fabrics such as resin or synthetic fibers, and gloves are attached to the ends of the sleeves, and shoes are attached to the ends of the legs.

However, if you wear the above-mentioned cold- and water-resistant clothing, not only will air accumulate inside it, making it difficult to work, but also the air in your lower body will act as buoyancy in the sea, causing your legs to float up, making it look unnatural. This shape makes it difficult to float on the sea, so the air inside must be let out after being worn. For this reason, conventionally, an exhaust valve with a spring-type check valve was attached to the chest area of the upper body to perform exhaustion.

[Problem that the invention attempts to solve]

However, since the above-mentioned exhaust valve is equipped with a spring-type check valve, it is not flexible and has a protrusion, so it not only feels uncomfortable when worn, but also has poor wearability. There is the problem that it gets in the way when floating on the sea, and there is also the problem that if a vortex is generated near the check valve when swimming, the valve will open due to the negative pressure and water will infiltrate inside. .

[Means for solving problems]

The present invention was developed with the aim of solving the problems of the prior art as described above, and its structure consists of a sheet or sheet-like closed foam made of flexible, waterproof, and water-resistant synthetic rubber, synthetic resin, etc. etc. on a rectangular base sheet with through holes provided at appropriate locations,
A guide member made of a smaller waterproof and water-resistant sheet that guides the air discharged from the through-holes of the base sheet in one direction is pasted, and on top of it a guide member of an appropriate size that is the same size as the base sheet is attached. A waterproof and water-resistant surface sheet is provided with holes spaced apart from the air discharge side of the guide member in the opposite direction, and the surface sheet is attached to the base sheet at its periphery. It is something to do.

[Effect]

In other words, the present invention does not use mechanical elements such as springs, but uses a flexible sheet that is highly waterproof and water resistant.It is thin and flexible, and has a good exhaust function. Not only does it prevent water and cold-resistant clothing from entering, but it is also easy to attach to appropriate areas of cold- and water-resistant clothing, such as the chest area of the upper body or the legs of the lower body. It was designed so that it would not get in the way.

〔Example〕

In this book, embodiments of the present invention will be explained with reference to figures.

In Fig. 2, 1 is a rectangular base sheet made of a flexible, waterproof, water-resistant sheet of synthetic rubber, etc., with through holes 2 of appropriate sizes provided at appropriate locations, and 3 is the base sheet. A first guide sheet is made of a waterproof and water-resistant sheet smaller than 1, and has a through hole 4 of the same size as the through hole 2 on one side. The periphery of the through hole 4 is pasted to match the . 5 is the first guide sheet 2
A second guide sheet of the same quality and size is attached to the first guide sheet 2 at its periphery except for one side opposite to the guide member G. The air discharged from the through holes of the base sheet 1 is guided and discharged from between both guide sheets to the open side. 6 is base sheet 1
This is a surface sheet in which an exhaust hole 7 having the same size and approximately the same area as the through hole 2 of the base sheet 1 is provided, and the periphery of the exhaust hole 7 is attached to the periphery of the base sheet 1. A stop valve A is configured.

When the check valve A of the present invention configured as described above is used for exhausting the cold-resistant and water-resistant clothing B described above, the locations of the cold-resistant and water-resistant clothing B that should be vented, for example,
Exhaust holes C may be provided in advance on the chest or legs, the through holes 2 of the base sheet 1 may be aligned with the exhaust holes C, and the back surface of the base sheet 1 may be attached to cold-resistant and water-resistant clothing.

By doing this, when a person wearing cold-resistant and water-resistant clothing B presses the clothing from the surface of the clothing or enters the water, the air inside the clothing will move as shown by the arrow due to the pressing force or water pressure. From the exhaust hole C provided in the clothing, through the through hole 2 of the base sheet 1 and the through hole 4 of the first guide sheet 3 of the guide member G, and between the first guide sheet 3 and the second guide sheet 5, It is discharged from the open side of the sheet into the gap between the base sheet 1 and the top sheet 6, and is discharged to the outside from the exhaust hole 7 of the top sheet 6.

Moreover, what is shown in FIG. 3 is a sectional view of another example of the check valve A' of the present invention, in which the guide member G is made of one waterproof sheet,
The guide member G is made of a water-resistant sheet, and the guide member G is attached to the base sheet 1 at the part corresponding to the outer periphery of one side of the through hole 2 of the base sheet 1 and the peripheral edge except for the opposite side of the one side. , the air inside the clothes passes through the through holes 2 from the exhaust hole C provided in the clothes, and then passes through the base sheet 1 and the guide member G.
The liquid is discharged from the open side of the guide member G between the top surface of the base sheet 1 and the guide member G and the top sheet 6 through the openings of the top sheet 6, and is discharged to the outside through the through holes of the top sheet 6.

When the air is discharged as described above, the pressure inside the clothes becomes low and each sheet of the check valve A is in a polymerized state, so that air again enters the inside of the clothes from the exhaust hole 7. There is no risk, and in this state, even if floating on the sea, there is no risk of seawater entering from the exhaust hole 7.

〔effect〕

The present invention is as described above, and is flexible, waterproof,
Since the check valve was constructed by skillfully combining the water-resistant base sheet, the guide member, and the top sheet, the entire sheet could be made as thin as a sheet polymer, and as described in the example, it could be used as a material for cold- and water-resistant clothing. When used in exhaust check valves, it does not get in the way like conventional spring-type check valves, and it blends well with clothing and is comfortable to wear, making work and body movements easier. It is extremely useful, and its structure is simple and can be manufactured easily and inexpensively.

In the above explanation, we have mainly described examples of use in cold- and water-resistant clothing, but the check valve of the present invention can also be used in other clothing, equipment, etc., especially flexible low-pressure check valves. It is suitable as

[Brief explanation of the drawing]

The figure shows an embodiment of the check valve of the present invention.
The figure is a partially cutaway plan view of one example, Figure 2 is a cross-sectional view with the same structure exaggerated, Figure 3 is a partially cutaway plan view of another example, and Figure 4 is the same exaggerated structure. FIG. 5 is a front view of the check valve of the present invention attached to cold- and water-resistant clothing, which is an example of an object to be attached. A, A'...Check valve, 1...Base seat, 2...
Through hole, G...Guide member, 3...First guide sheet,
4...Through hole, 5...Second guide sheet, 6...Top sheet, 7...Exhaust hole, B...Object to be attached (cold and water resistant clothing), C...Exhaust hole.

Claims (1)

[Scope of utility model registration request] A rectangular base sheet made of flexible, waterproof, water-resistant sheets of synthetic rubber, synthetic resin, etc., or sheet-like closed foam, etc., with through holes provided at appropriate locations, and a smaller waterproof, water-resistant base sheet. A guide member made of a sheet that guides air discharged from the through holes of the base sheet in one direction is pasted, and an appropriately sized exhaust hole that is equal in size to the base sheet is provided on the guide member to discharge air from the guide member. 1. A check valve comprising a waterproof and water-resistant top sheet spaced apart from one side in the opposite direction, and the top sheet is adhered to a base sheet at its periphery.