JP2000201964A - Waterproof earplug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hear an underwater sound and an external sound, and to prevent the occurrence of a pain of a middle ear and an internal ear by long hour use by arranging an external ear crease close contact part and an auricle close contact part, and forming a waterproof earplug of a soft resin so as to form a cavity in the center. SOLUTION: A tetrafluoroethylene resin porous film is formed in a circular shape to be adhered to or thermally installed in parts 1, 2 of an earplug. Then, selective permeability for permeating air and repelling water is imparted. A lumen is arranged, and a hydrophobic synthetic resin lump 3 is fitted so that middle ear and internal ear pressure can cope with outside air pressure. This hydrophobic synthetic resin lump 3 is formed by performing compressive sintering by mixing large and small particles according to use. Thus, air permeability is selected by the size of the particles and compressibility so that a decibel sound of about 1000 to 4000 is audible. Thus, an underwater sound and an external sound can be heard, and a waterproof earplug can be used for many hours without a pain of middle and external ears.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to an earplug which prevents water from entering the middle ear during swimming and allows external sounds to be heard. Also, it is an earplug that does not hurt the middle and inner ears even if the air pressure changes in the airplane or if it is used for a long time. It is an earplug that can also be used for ear protection and mental stability in noisy places.

[Prior Art] To prevent otitis media, swimming is performed with waterproof earplugs. However, in the case of existing earplugs, the outer ear is hermetically sealed. The middle and inner ears may be painful. Further, since the outer ear is completely sealed, external sounds cannot be heard, so that there is a disadvantage that communication cannot be established.

[Problems to be Solved by the Invention] Swimming is often performed by children and adults for health. However, water may enter the middle ear when swimming and cause middle ear inflammation. In addition, many people cannot swim because of holes in their eardrums. Many people do not have middle ear inflammation,
I use waterproof earplugs for swimming. However, earplugs currently in use are attached to the outer ear, so if you use them for a long time, the middle ear,
The middle ear and inner ear become painful due to changes in inner ear pressure. There are also disadvantages such as difficulty in hearing external sounds. The present invention is an earplug in which underwater sounds and external sounds can be heard even when swimming with waterproof earplugs, and the middle and inner ears do not hurt even when used for a long time.

[Means for Solving the Problems] To explain the constitution, the outer ear fold contact part (5) of the earplug FIG. It is a soft resin with a structure that keeps earplugs stable, and its center is hollow. In order to satisfy the requirements of the present invention, materials 1 and 2 in FIG. 1 are preferably made of a fluorine resin or a silicone resin. In the present invention, a product of Nitto Denko Corporation (ethylene tetrafluoride porous membrane) is used, and the description will be made accordingly. 1 and 2, a porous ethylene tetrafluoride membrane (hereinafter referred to as a porous membrane) is formed into a circular shape and adhered or thermally adhered. The property of this porous membrane is that it is selectively permeable to air and water. The membrane has hundreds of millions of micropores per square centimeter (0.1-3
Micron), allows gas to pass through, repels liquids such as water and acid having a large contact angle, and provides excellent waterproofness due to selective permeability. This porous membrane is reinforced with a polyester woven fabric or the like, and is a very safe product for the purpose of the present invention. Regarding the water resistance test, J
IS L 1092 A method (low water pressure method) and JIS L
According to the measurement by the 1092B method (high water pressure method), even if it is 1 cm square and at a depth of 50 meters, it is water-resistant and has the passage of air. (Nitto Denko Corporation MICR
(O-TEX magazine) A hydrophobic synthetic resin block (hereinafter referred to as hydrophobic resin) is fitted into the air so that the middle ear and inner ear pressures can gradually correspond to the outside air pressure when the airplane rises. If hydrophobic particles (polyethylene) are mixed and compression-sintered according to the purpose, large and small particles are mixed, and the air permeability is proportional to the size and compression ratio of the particles. In consideration of these facts, in order to achieve the effects of the present invention, the hydrophobic resin is obtained by mixing and compressing and sintering the size of the hydrophobic resin particles. Although the earplug has the above-described configuration, it is an earplug configured to be able to hear 1000 to 4000 decibels in hearing.

[Effect] The earplug of the present invention is designed to be used within a depth of 50 meters. When the earplugs are attached to the outer ear and the water contacts the surface of the porous membrane up to a depth of 50 meters, the water is hydrophobic on the surface of the membrane and does not enter the middle ear. Upon exiting the water, the water becomes hydrophobic at the porous membrane surface, thus allowing air to enter and exit the inner ear.
It has the ability to hear 0-4000 dB sound. As the airplane rises, the air pressure changes and the middle and inner ears hurt. To prevent the pain, swallows and chews gum. The earplugs of the present invention have a porous membrane and a mass of hydrophobic resin in the earplugs, even if the air pressure changes as the airplane rises,
The function is to prevent the middle and inner ears from becoming painful by gradually adjusting the pressure change so as not to burden the middle and inner ears.

[EXAMPLE] A porous membrane used at a water depth of 50 meters or less is used and bonded to 1 and 2 in FIG. The earplug of FIG. 1 is made entirely of a soft resin so that it can be closely attached to the ear canal. The present invention is an earplug configured so that a water sound can be heard even in water and an external sound can be heard even in a normal state, that is, 1000 to 4000 dB sound can be heard.

[Effect of the Invention] When the earplug of the present invention is gripped by the support portion (5) and inserted into the external auditory canal so that the earplug is brought into close contact with the ear canal, the earplug can be used during swimming.
Water can penetrate the middle ear even if the water is deep down to 0 meters. Sound can be heard even underwater. In addition, there is an effect that the external sound can be heard well with the earplugs attached, and the middle ear and the inner ear do not hurt even when used for a long time. One of the features of the present invention is that when an auricle fixing part is provided and is brought into close contact with the auricle part, the earplug is fixed to the middle ear, so that it does not loosen or fall off.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a schematic view of the mounting according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tetrafluoroethylene porous resin 7 Tympanic membrane 2 〃 ８ 8 Ear 3 Hydrophobic synthetic resin lump 4 Auricle adhesion part 5 Outer ear fold adhesion part 6 Support part

Claims (2)

[Claims] (A) An inner space is provided in FIG. (B) A porous film of ethylene tetrafluoride resin is adhered to 1 and 2 in FIG. (C) The hydrophobic resin block (3) is fitted into the inner space. 2. The earplug according to claim 1, wherein (a) an auricle contact portion (4) and an outer ear fold contact portion (5) are provided. An earplug configured as described above.