JP2002200109A - Earplug, attaching instrument to earphone and earphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the hearing of conversation while alleviating noise and to make it possible to clearly hear a sound heard through an earphone even under extreme noise by cutting off the noise when the earphone is used. SOLUTION: An earplug is molded from a foamed material having flexibility and sound insulating properties and having a property gradually restoring a shape and a venting hole of which the opening part has a funnel shape is allowed to pierce through the earplug in the axial direction thereof. A ring-shaped fastener, a holder as the extension of the earplug or a funnel-shaped fastener is provided in order to connect the earplug and the earphone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has as its main object to clarify listening with an earphone such as listening to music under noise. It is an earplug for reducing noise and enabling conversations and the like to be heard, and at the time of using an earphone, to cut off the noise and clarify the hearing. In addition, the present invention relates to a fitting for easily attaching an earplug to an earphone.

[0002]

2. Description of the Related Art There has been no idea or technology that makes it possible to make music appreciation or the like under noises clear by using an earplug for noise prevention independently as an earplug and using it together with an earphone.

Conventionally, earplugs have been invented, as disclosed in Japanese Patent Application Laid-Open No. Hei 6-343659, to block external noise and to clearly hear necessary sounds, but are not generally used. This is probably because the structure is complicated and the production is expensive.

[0004] In order to achieve the purpose with inexpensive materials,
Japanese Utility Model Application Publication No. 57-169312 is difficult to handle, and at the same time, when trying to listen to music with earphones from above, the air holes are crushed and clear listening is hindered.

[0005] Even in the above invention, if the hole is made thicker, a space for the ventilation hole can be secured. However, the shape cannot be maintained even if it is inserted into the outer ear, which makes insertion difficult.

[0006] When the earplug is made of a foam material having a property of being flexible and gradually restoring its shape gradually when the earplug is pinched with a finger, it is difficult to determine the shape when the hole is thick. Originally, it is considered that the above-described invention is intended to reduce noise and enable listening, and is not intended for listening to music with an earphone under noise.

[0007] There has been no earplug that can be made of inexpensive materials and has a simple structure and reliably achieves its purpose.

[0008]

DISCLOSURE OF THE INVENTION The present invention uses a simple tool to make it possible to hear conversations and the like while reducing noise, and to cut off noise when earphones are used so as to clarify hearing. Is provided.

Conventionally, earphones have been provided with a projection made of synthetic resin or the like on the main body and inserted into the outer ear to improve the clarity of hearing. However, due to the material, the effect of blocking noise is not sufficient. Did not show. When used for a long time, such as listening to music, the feeling of discomfort was large and the possibility of causing pain was great.

[0010] Therefore, earphones and the like in which an insertion portion is made thin and a thin rubber curtain rounded like a tire is attached around the insertion portion have been developed and are commercially available. However, this also has a problem that the noise cannot be sufficiently shut off due to the problem of the material and the structure, the structure is complicated, and the cost is high.

[0011]

According to the present invention, in order to solve the above-mentioned problems, as shown in FIGS. 1, 2, and 3, a foam having a property of being flexible, sound insulating, and gradually restoring its shape is provided. An earplug is formed from the material, the ventilation hole is penetrated in the axial direction of the earplug, and the opening is formed into a funnel shape.

The earplug is used to fill the outer ear portion and adhere to the inner wall of the outer ear, and the sound wave emitted from the outside world and the earphone is transmitted to the inner ear through a ventilation hole penetrated in the axial direction of the earplug.

By opening the opening in a funnel shape, the sound generated by the earphone is collected, transmitted to the inner ear without weakening the sound wave, and the air hole is prevented from being crushed. As shown in FIG. 4, it is possible to reinforce with a material having a strong restoring force, such as rubber, to prevent deformation of the ventilation holes.

In use, the torso of the earplug is squashed with a finger and inserted into the outer ear to restore its shape.

When listening to music, etc., the earphones are attached and then the earphones are used in a normal manner, and the effect is exhibited. However, if the earplugs and the earphones are mechanically combined, the noise blocking effect is obtained. And the hearing becomes clearer.

Various methods are possible for the connection. First, adhesion is provided by an adhesive. Examples of the method include a method of bonding in advance, a method of attaching a paste to earplugs, and a method of bonding with a double-sided tape. In other words, it is possible to adhere the periphery of the surface of the earphone in contact with the ear and the periphery of the outer part of the ear when the earplug is used by the above-described method.

As a second connection, the earphone may be provided with a holder portion as shown in FIGS. 5 and 6 so that the earphone can be sandwiched and attached.

As a third connection method, there is a connection method using a mounting device. As shown in FIGS. 7 and 8, it can be fixed with a ring-shaped attachment made of metal or synthetic resin, or as shown in FIG. 9, with an attachment that wraps around the earplug and the earphone body. .

As a fourth connection, as shown in FIG. 10, it is possible to insert the projection of the funnel-shaped attachment into the earplug and fix it. Further, the earphone can be fixed by inserting the earphone into the earplug with the oscillating portion side protruding.

[0020]

Embodiments of the present invention will be described with reference to the drawings. FIGS. 1, 2 and 3 show the possibility of the difference in shape. Earplugs 1, 2, and 3 are made of a material that is flexible and gradually restores the shape, and the center axis direction of the earplug is shown. The opening has a structure in which a funnel-shaped ventilation hole 4 is penetrated.

FIG. 1 shows an earplug 1 formed by molding the above-described material into a columnar shape, a vent hole 4 penetrating the center axis, and a funnel-shaped opening.

FIG. 2 shows that the tip 5 of the insertion portion is rounded into a hemisphere,
The torso 6 is gradually thickened toward the bottom 7, and the bottom 7 has a large open shape like a mountain skirt to facilitate insertion into the outer ear and facilitate close contact with the earphone.

FIG. 3 shows a modification of the earplug 2 shown in FIG. 2, and a disc-shaped projection 9 perpendicular to the center axis 8 of the earplug.
The body of the earplug is made uneven so that it can be made.
As a result, the flexibility of the earplugs is increased, the insertion becomes easy even if the sound insulator is slightly rigid or the shape is restored too quickly, and the discomfort during use is reduced.

FIG. 4 shows a structure in which a reinforcing material 10 such as rubber or the like which is flexible and has a strong shape restoring force is attached to the inner wall of the ventilation hole of the earplug 2 shown in FIG. 2 in order to maintain the shape of the ventilation hole. is there. The same treatment can be applied to the earplugs 1 and 3 having the shapes shown in FIGS.

FIG. 5 shows that a band-shaped holder 12 for fixing the earphone is formed by extending the sound insulating material 11 or the ventilation hole reinforcing material 10 forming the earplug on the bottom part 7 of the earplug, and pressing the earphone. Earplugs that can be attached and fixed.

FIG. 6 shows that a bag-shaped holder 13 for fixing the earphone is formed by extending the sound insulating material 11 or the ventilation hole reinforcing material 10 forming the earplug at the bottom part 7 of the earplug, and sandwiching the earphone. It is an earplug that can be fixed with.

FIG. 7 shows a mounting member made of metal or synthetic resin or the like, and its main part is a ring-shaped holding member formed by making a hole in the center of a deep dish-shaped plate. Claws 15 are formed around the ring-shaped holding member 14. The ear plug is inserted into the center hole 16 of the ring-shaped holding member 14, and the claw 15 is put on the earphone so that the ear plug can be fixed between the ring-shaped holding member 14 and the earphone.

FIG. 8 also shows a mounting tool made of synthetic resin or the like. The main part is a ring-shaped pressing tool formed by drilling a hole in the center of a deep dish-shaped plate. Ring retainer 17
Stretched end to the band-shaped, is obtained to be able to keep providing the fastener 18 by inserting earplugs in the portion of the central bore 16, across the earplugs between the band 19 and ear phone It is a fixture that can be fixed.

FIG. 9 shows a mounting member made of synthetic resin or the like, which is formed by a ring-shaped holding member 20 formed by making a hole in the center of a deep dish-shaped plate and an arm-shaped lid 21. At the end of the retainer 20, a joint 22 with the lid 21 is provided, and at the opposite end, a fastener 23 is provided. The ear plug is inserted into the central hole 16 and wrapped together with the earphone.

FIG. 10 shows a funnel-shaped device 24 made of metal or synthetic resin, and a claw 15 formed around the opening so that it can be attached to the earphone. The projection 25 is inserted into the vent hole 26 of the earplug. It is made possible. The protruding portion 25 is a cylindrical body extending substantially in the vertical direction from the vicinity of the center of the funnel-shaped device 24, and has a convex portion 27 or a concave portion formed near the tip thereof. In order to connect the projection to the earplug, a recess 28 or a projection corresponding to the projection 27 or the recess of the projection 25 is formed in the ventilation hole 26.

It is desirable that the protruding portion 25 is vertically attached to the vicinity of the center of the funnel-shaped device 24, but the position and the angle can be changed within a range that can be inserted into the outer ear.
In use, the earphone 29 can be connected by inserting the earplug into the outer ear and then inserting the projection into the earplug, or by inserting the earplug into the ear after the connection.

Further, an earphone having a projection can be prepared and used.

FIG. 11 shows a state in which a ring-shaped attachment 30 having claws is used, in which the ear plug 2 is detachably mounted on the earphone 29.

[0034]

Since the present invention is configured as described above, the following effects can be obtained.

According to the present invention, since the vent hole of the earplug has a funnel shape, the opening does not collapse even when the earphone is pressed, so that the sound wave generated by the earphone is collected and the earplug fills the outer ear. It has a high sound insulation effect and can be heard clearly even under noise.

When it is necessary to speak when listening to music under noise, conversation can be made by removing only the earphone without removing the earplugs. If the earphones and earplugs are connected by a fitting, the effect will be further enhanced, so that it can be used according to the situation.

A foam material having the property of being soft and gradually recovering its shape has a quicker deterioration of the restoring force than a foam material used everyday such as urethane foam, and is used in a form that is almost disposable.
Disposable without resistance by being independent of earphones.

There is a problem with sound leakage when listening to music with a tape recorder or the like in a train. However, if the present invention is used, since the noise is cut off, it is possible to listen to music without increasing the volume. Therefore, it is possible to prevent annoying due to sound leakage. In particular, when the shape is as shown in FIG. 5, the effect of preventing sound leakage is great.

Even if the present invention is used for a long time, the feeling of discomfort is small.

[Brief description of the drawings]

FIG. 1 is a perspective view of an earplug.

FIG. 2 is a perspective view of earplugs having different forms.

FIG. 3 is a sectional view of an earplug having a different form.

FIG. 4 is a cross-sectional view of an earplug obtained by applying a reinforcing material to the earplug shown in FIG. 2;

FIG. 5 is a perspective view including a partial cross section of an earplug having a band-shaped holder.

FIG. 6 is a perspective view including a partial cross section of an earplug having a bag-shaped holder.

FIG. 7 is a perspective view of a ring-shaped attachment having claws.

FIG. 8 is a perspective view of a ring-shaped attachment having a band.

FIG. 9 is a perspective view including a partial cross section showing a use state of the ring-shaped mounting tool having a lid.

FIG. 10 is a perspective view including a partial cross section showing a use state of the attachment having a funnel shape.

FIG. 11 is a perspective view showing a use state of a ring-shaped attachment having claws.

[Explanation of symbols]

 1, 2, 3 Earplugs 4, 26 Vent hole 5 Tip of insertion part 6 Body 7 Bottom 8 Center axis 9 Disc-shaped projection 10 Ventilation hole reinforcing material 11 Sound insulation material 12 Band-shaped holder 13 Bag-shaped holder 14 , 17, 20 Ring-shaped holder 15 Claw 16 Center hole 18, 23 Fastener 19 Band 21 Lid 22 Joining part 24 Funnel-shaped device 25 Projection 27 Projection 28 Depression 29 Earphone 30 Ring attachment

Claims (10)

[Claims] An earplug is formed of a foam material having a shape capable of closely filling an inner wall of an ear hole and filling an outer ear, and having a property of being soft and gradually restoring a shape, and is formed in an axial direction of the earplug. earplugs in which the openings funnel shape is through a vent. 2. An earplug according to claim 1, wherein the body of the earplug has irregularities such that a disk-shaped projection is formed at right angles to a central axis of the earplug. 3. The earplug according to claim 1, wherein the inner wall of the ventilation hole of the earplug is reinforced with a flexible material having a strong restoring force such as rubber. 4. A band-shaped holder for fixing an earphone by extending a sound insulating material or a ventilation hole reinforcing material forming an earplug is formed on the bottom of the earplug according to claim 1. Earplugs that can be held down and fixed. 5. A bag-shaped holder for fixing an earphone by extending a sound insulating material or a ventilation hole reinforcing material forming an earplug at the bottom of the earplug shown in claim 1, and sandwiching the earphone. Earplugs that can be fixed to earplugs. 6. The method according to claim 1, wherein a claw is formed around a ring-shaped holding member formed by making a hole in the center of the deep dish-shaped plate, the earphone is held by the claw, and the earphone is located between the holding member and the earphone. An attachment that allows the earplugs to be fixed to the earphone with the earplugs in between. 7. An end of a ring-shaped holding member formed by drilling a hole in the center of a deep dish-shaped plate is stretched in a band shape, a fastener is provided, and an earplug is sandwiched between the earphone and the band. An attachment that can fix the earplugs described in 3. 8. The earphone according to claim 1, wherein the earphone and the earplug are wrapped by a ring-shaped holding member formed by making a hole in the center of the deep dish-shaped plate and an arm-shaped lid. Mounting fixture that can fix the. 9. A funnel-shaped device made of metal or synthetic resin, a claw is formed around the opening so that it can be attached to the earphone, and the projection is inserted into the ventilation hole of the earplug to the earphone. Attachment that can fix earplugs described in 1-3 10. The mounting device according to claim 6, 7, 8, or 9, as a part of an earphone, which is made flexible by gradually passing through an air hole in an axial direction of an earplug, and gradually. Earphones with earbuds made of a foam material that restores the shape of the earphones in a removable form.