JP2018191265A - Earpiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earpiece capable of obtaining presence while correcting a normal position in the head and further keeping a spread of sound.SOLUTION: A sound is conducted to a cup inner part 130 of an earpiece from an earpiece sound canal entrance 180 through a sound canal hole part 120 of the earpiece of a central cylinder part 110 without transmitting the sound directly transmitted from a sound canal of an earphone body 100 to eardrum through an ear. Further, a part of the sound diffused in the cup part is discharged to a front tragus portion from a cup part hole 140 of the earpiece. By hearing the sound reflected from the cup part hole 140 of the same earpiece again, a user can recognize the sound as an indirect sound with a time lag from a front direction, and feels a normal position in the head of the sound and a spread of the sound.SELECTED DRAWING: Figure 1

Description

The present invention relates to an earpiece and an earphone included therein.

    Since the spread of mobile phones and smart phones, the opportunity to listen to music and hobby sound sources has been increasing, and many earphones and headphones have been developed according to the purpose. There are more opportunities to listen indoors and outdoors, and it is often used even when using public institutions such as trains and buses. Especially for earphones, it is difficult to hear the sound from outside by blocking the surrounding noise in order to improve the sound quality. There is a need for earphones that can listen to external sounds with high sound quality. On the other hand, as seen in VR (virtual reality), in the present situation that the image is made into 3D, it is normal to use the earphone in the head localization, and by improving these, VR It is considered that the device is capable of listening to sound with less sense of incongruity, and more realistic sounds such as improved matching between 3D images and sound are required.

  In recent years, the number of users of portable music players has increased, and the sound devices are roughly classified into a headphone type and an earphone type. Earphones that are particularly small and easy to handle are the mainstream, and as seen in the expansion of high-resolution sound sources, the sound quality is higher, and the user's sounds such as presence, sound field, and out-of-head localization are affected. The demand seems to be increasing.

  Conventional earphones are generally composed of a sound generation drive unit main body that provides a sound source, and earpieces that are inserted into the earphone main body stem and inserted into the ear canal to directly transmit sound.

  This earpiece has a localization in a state where sound sources located in both ears are concentrated on the axis of the head or near the center, and the unnaturalness of the sound is a problem. In order to revise these, when passing through the earpieces from both sound sources, sound is emitted from a part of the cup shape of the earpiece to the tragus at or near the outside of the ear canal, and the emitted sound or its reflected sound is directly emitted. It is intended to achieve forward localization (out-of-head localization) by listening with the ear and gaining a sense of direction.

  In this way, the conventional general earphones are actually used while being forced to be localized in the head, but several methods for solving these in-head localization have been proposed and electronically simulated. Although it has been proposed to produce sound by generating sound and to move the sound source of the front part, or to drive the sound source of the drive unit from the back and guide it into the sound path of the earpiece, etc. I can hardly find anything.

  Usually, in order to obtain high sound quality, it is common to increase the sealing by making the earpiece made of polyurethane, etc., but the product of the present invention opens in the forward direction in the cup part of the earpiece while maintaining high sound quality. It is possible to provide an earpiece that can reduce the risk by listening to external sound from the hole and at the same time obtaining a sense of direction.

Japanese Patent No. 56679797

  The structural form of the present invention is considered in consideration of the above-mentioned problems, and the sound is localized in the head specific to the earphone, and there is a sense of incongruity. In addition, there is no indirect sound like when listening at a concert hall or when listening through a speaker, and it is difficult to structurally obtain a realistic sound. Furthermore, the problem is that the original acoustic characteristics cannot be obtained because the earpiece itself resonates with the sound and noise is generated, and there are many examples that hinder the sound that is moved by these events.

  The present invention is intended to solve such a conventional problem, and the in-head localization peculiar to the earphone is made out-of-head localization to eliminate the sense of incongruity. By adopting, it has a structure that can also provide a sense of realism of sound, and furthermore, by reducing the noise from the earpiece body and having the original acoustic characteristics, it is possible to listen more naturally Is.

  The invention described in claim 1 is an earpiece that is used by being connected to a stem portion of an earphone main body, and is composed of a base end portion of the earpiece and an outer peripheral portion of the cup, and protrudes from the bottom in the cup. A cylindrical central tube connected to the cup portion, and a plug that plugs the tip opening of the central tube, and at least one predetermined hole for connecting the inside and outside of the cup portion from the center in the longitudinal direction of the cup portion to the middle position of the earphone attachment The central tube is provided with at least one internal and external hole on the base end side, and the plug at the base end of the central tube is made of a material different from that of the earpiece. It is an earpiece characterized by being constructed.

  The invention described in claim 2 is characterized in that in the earpiece, at least one predetermined connection hole Φ0.1 to Φ2.0 is formed to be connected from the center in the longitudinal direction of the cup portion to the middle position where the earphone is attached. The earpiece according to claim 1.

  The invention described in claim 3 is characterized in that in the earpiece, a cylindrical metal or resin is inserted into the center tube from the proximal end portion to eliminate the sound path of the center tube. The earpiece.

    The invention described in claim 4 is characterized in that, in the earpiece, a tip end portion in which a cylindrical metal or resin is inserted into the central cylinder of the main body and the sound path is closed is hemispherical. It is an earpiece.

  According to the fifth aspect of the present invention, in the earpiece, the hole position of the cup portion is located in or around the tragus portion outside the end of the ear canal in the forward direction, and the main sound when listening from the structure of the ear. The earpiece according to claim 1, wherein an approach direction is provided in a direction of 15 to 75 degrees with respect to the axial center between both earpieces.

  The invention described in claim 6 is a structure in which the outer periphery of the cup is closely adhered along the ear canal in the ear piece, and the inner wall of the cup of the ear piece maintains the same shape as the entrance of the ear canal. It is an earpiece.

  The invention according to claim 7 is a normal-type silicon earpiece having a lid closely attached to the open portion of the cup, providing a chamber chamber, and a sound path that is a cylindrical central tube connected to the stem portion The earpiece has a structure in which a predetermined hole to be connected to at least one chamber chamber is formed, and at least one connection hole is provided in either the outer peripheral portion of the earpiece or the above-described forward direction of the lid. is there.

  In the invention described in claim 8, in the earpiece, at least one predetermined connection hole Φ0.1 to Φ2.0 connected to the middle position of the earphone attachment from the center in the longitudinal direction of the cup portion is formed, or the above-mentioned The earpiece is characterized in that at least one connection hole Φ0.1 to Φ2.0 is formed in the forward direction of the lid.

  According to the ninth aspect of the present invention, in the earpiece, a space is created in the cup portion by having a silicon or rubber lid having a thickness of 0.5 to 2.0 mm at the open portion at the end of the cup portion. The earpiece according to claim 7, wherein the earpiece has a chamber structure connected to the road.

  According to the invention described in claim 10, in the earpiece, the hole position of the cup portion is located in the forward direction and at or around the tragus portion outside the end of the ear canal, and the main sound intrusion when listening from the ear structure. The earpiece according to claim 7, wherein the direction is provided in a direction of 15 to 75 degrees with respect to the axial center between both earpieces.

  The invention described in claim 11 is a urethane earpiece of a normal form, wherein the ear bead outer peripheral side on the side to which the stem is attached is connected to the outer ear deep side of the sound path with a pipe made of beer chloride or silicon. It is an earpiece characterized by the structure to be made.

  In the invention described in claim 12, in the urethane earpiece, at least one predetermined connection hole Φ0.1 to Φ2.0 for connecting the earpiece sound path portion from the center in the longitudinal direction of the cup portion to the middle position of the earphone attachment is provided. The earpiece according to claim 11, wherein the earpiece is formed.

  The invention according to claim 13 is the ear structure made of urethane, wherein the hole position of the ear piece is located in the forward direction and at or around the tragus part outside the ear canal end, and is connected to the ear piece sound path part. The earpiece according to claim 11, wherein a main sound entering direction when listening from the side is provided in a direction of 15 to 75 degrees with respect to the axial center between the earpieces.

  The invention described in claim 14 is an earpiece part of a custom-in-ear monitor, wherein the earpiece part of the insertion part to the outer ear is located at or around the tragus part and has a structure for connecting the outer side of the sound path with a hole. It is an earpiece part for custom-in-ear monitors.

  The invention described in claim 15 is provided with predetermined connection holes Φ0.1 to Φ2.., Which are connected to the outer side of the outer ear of the custom-in-E monitor from a portion corresponding to the outer ear canal of the custom-in-ear monitor outer ear insertion portion. The earpiece according to claim 14, wherein at least one zero is formed.

  According to the invention described in claim 16, the hole position of the external ear canal of the custom in-ear monitor is located in or around the tragus portion outside the ear canal end in the forward direction, and the main sound when listening from the structure of the ear The earpiece according to claim 14, wherein an approach direction is provided in a direction of 15 to 75 degrees with respect to both axial centers between the earpieces.

    The invention described in claim 17 is a two-piece type earpiece in which urethane is incorporated inside a silicon earpiece having a normal form, and the contact portion is bonded with an adhesive or a double-sided tape. The earpiece is characterized by a structure in which a connection hole is provided between the earpieces.

  In the invention described in claim 18, a predetermined part of the earpiece outer periphery joint portion is connected in a partial axial direction from a portion corresponding to the outer side of the ear canal of the outer ear insertion portion of the two-piece structure of silicon and urethane to the inner side of the outer ear of the earpiece. 18. A pipe having a width and depth of 0.1 to 2.0 mm, or made of beer chloride or silicon and having an inner diameter of Φ0.1 to Φ1.5 is formed at least one point. It is an earpiece of description.

  In the invention described in claim 19, the position of the hole in the ear canal of the two-piece structure of silicon and urethane is in the forward direction, located at or around the tragus portion outside the end of the ear canal, and is mainly used for listening from the ear structure. The earpiece according to claim 17, wherein the sound entry direction is provided in a direction of 15 to 75 degrees with respect to the axial center between both earpieces.

As mentioned above, the earpiece for this earphone is mainly intended to improve the head localization specific to the earphone and change it to the front orientation, and the hole of the cup part of the earpiece body is located at or near the tragus outside the ear canal. By releasing the reflected sound and reverberant sound that is diffused and delayed near the ear, it is possible to obtain a more effective forward localization and a sense of sound image expansion. Furthermore, the sound source generated from the earphone itself is not delivered directly to the ear canal, but a large amount of indirect sound in the earpiece cup space is delivered to the ear, and the noise generated from the earpiece itself is combined with materials of different masses. Resonance is reduced and listening as a more natural sound (live sound) is enabled. The table below shows a comparison between 15 normal men and women with normal earpieces and inventions, and clear sound quality effects are obtained in all items.

  The present invention has been devised to improve the problem of the earphone, and the sound is emitted forward from a part of the cup part of the earpiece and the sound is heard to improve out-of-head localization and sound field feeling. It is an earpiece designed to reduce noise from the body by combining materials with different masses, and can be used in various situations such as listening at home, general transportation, and exercise. In addition, compatibility with VR devices that are expected to be actively developed in the future can be expected to be effective. If the volume is low to medium, it is possible to listen to external sounds at the same time.

  In addition, due to the recent expansion of the use of smartphones and the use by individuals, the demand for earphones has increased, and it has been used in various situations such as walking, exercising and commuting while wearing earphones, and the earpiece was sealed The way it is used in good condition also has a risk of not being able to hear other external sounds, which is a social problem. By changing the structure of the earpiece as described above, it is possible to reduce out-of-head localization and presence, improve sound image localization, and reduce the risk by introducing external environmental sounds. The most important feature is that it can be installed in the earphones of the existing products, except for some products, and can be realized with a minimum cost.

1 is a cross-sectional structure diagram of an earpiece according to an embodiment of the present invention. It is an image figure of the sound flow of the earpiece by one Embodiment of this invention. It is a fragmentary sectional view which shows the earpiece at the time of mounting | wearing with the outer ear of this invention. It is a fragmentary sectional view from the side of earpiece by one embodiment of the present invention. It is a comparative image figure of the localization of the sound at the time of viewing and listening with the conventional earpiece. It is a comparison image figure of the localization of the sound at the time of viewing and listening with the earpiece of this invention. It is sectional drawing of the structure form of the silicon earpiece by the applied technique of this invention. It is structural form sectional drawing of the earpiece made from urethane by the applied technique of this invention. FIG. 3 is a structural sectional view of a custom in-ear monitor according to an application technique of the present invention. It is a cross-sectional view of the earpiece structure in which urethane is incorporated into silicon made by the applied technology of the present invention. It is a chart which shows the comparison data (comparison with a normal type) of this invention earpiece.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings 1 to 10.

  In the present embodiment, the present invention is established by putting a so-called earpiece known on the Internet or the like into a reverse state with respect to the earphone main body 100, but the earpiece is in a normal insertion state or the like. However, although it is disadvantageous in terms of low-pitched sound reproduction, it can be implemented and is equivalent in terms of out-of-head localization (forward localization). It will be described in the embodiment.

  Referring to FIG. 1, in the embodiment, the earpiece is reversed and at least one earpiece sound path hole 120 is opened near the entrance of the sound path to guide the sound into the cup interior 130 of the earpiece. At that time, the sound is blocked by the metal or resin of the plug 160 such as the rivet described above at the sound path base end 150 of the earpiece.

  The sound guided to the cup interior 130 of the earpiece described above travels from the outer ear to the inner ear as shown in FIG. 2, but a part of the sound is opened from the center of the cup portion to the intermediate portion of the earphone stem portion 170. The cup part hole 140 of the earpiece of 0.1 to Φ2.0 discharges to the tragus part 200 outside the ear canal in the forward direction from at least one place or in the vicinity thereof. By listening to the emitted sound, including the sound reflected from the tragus portion or its periphery and entering from the hole, it is possible to obtain a sense of direction and a sense of presence in the front. In addition, the earpiece cup hole 140 is arranged so that the direction of the main sound when listening from the ear structure is in the direction of 15 to 75 degrees with respect to the axial center between the earpieces. It is possible to listen with a sense.

  Since the head of the plug 160 such as a rivet, which is a previous operation, has a hemispherical shape, it is presumed that the sound passing through the sound path is reflected from the tip of the earpiece and works advantageously on the sound spreading feeling. In addition, the appearance and the unsightly appearance of the reverse orientation disappear, and the appearance changes into a caress like a crab's centerpiece. As an impression, the whole earpiece looks like the centerpiece, and it will be referred to as an earpiece Eyes.

  The earpieces that are usually attached to the earphones are those that are attached to the earphones, if inserted in reverse, the insertion side into the ear is too open and the insertability is poor, and the hardness of the cup part is about A35 to 40 and is soft to the ear. There are many things with poor insertion. The cup part is made of silicon having a hardness of A45 to A50 to improve the insertability and sound quality, and the parting line position is reviewed, and the edge part of the distal end 190 when the earpiece is inserted into the edge part R0.1-0. By adding 3, the insertion into the ear canal is improved.

  In the earpiece in the normal use form, at least one hole 220 of the earpiece sound path portion of Φ0.1 to Φ2.0 is formed in the earpiece of FIG. 7 and Φ0 .0 in the front tragus direction outside the ear canal of the earpiece cup portion. Earn at least one earpiece cup hole 230 with a diameter of 1 to Φ2.0, which emits sound in the forward direction by directing in the tragus direction in the same direction, and at the same time listening to the sound from the hole, By synthesizing the sound directly with the sound from the head and recognizing the sound from the front as a whole in both the left and right ears, an out-of-head localization (forward localization) and a sense of sound spread are obtained. In order to prevent sound leakage from the inner diameter end portion of the cup portion of the earpiece, a two-piece sealed structure is formed by sealing with a rubber or resin lid-shaped object or a sound leakage prevention lid 240, and the front of this lid portion. The same effect can be obtained by making holes of Φ0.1 to Φ2.0 in the direction.

  In the urethane low resilience earpiece shown in FIG. 8, at least one resin pipe 260 having earpiece connecting holes 250 of Φ0.1 to Φ2.0 on the sound path portion on the ear canal insertion side of the earpiece and the outer periphery of the earpiece By connecting with the direction of the front tragus outside the external auditory canal, it is possible to obtain a forward localization (out-of-head localization) effect similar to that described above.

  In the custom-in-ear monitor of FIG. 9, the sound path portion on the ear canal insertion side has a connecting hole 270 between the ear canal insertion portion hole 280 of 0.1 to 2.0 mm and the tragus side, and is outside the ear canal. It is set as the structure where the front localization (out-of-head localization) effect similar to the above is acquired by making it communicate with a trabecular part front direction.

  FIG. 10 A two-piece type earpiece in which a urethane material 310 is incorporated inside a silicon earpiece in a normal form, and the contact portion of both materials is bonded with an adhesive or double-sided tape, and a silicon-urethane composite type connection hole 290 By providing a hole 300 in the earpiece portion and communicating with the earpiece portion, the same front localization (out-of-head localization) effect as described above can be obtained.

  When conducting business while wearing earphones on one side, such as police officers, security guards, store staff, etc., it is possible to hear business communications and external sounds at the same time. If the volume on the earphone side is about half that of the scale, conversation is possible.

DESCRIPTION OF SYMBOLS 10 Earpiece main body 100 Earphone main body 110 Earpiece center pipe | tube 120 Earpiece sound path hole part 130 Ear piece cup inside 140 Ear piece cup part hole 150 Ear piece sound path base end part 160 Plugs, such as a rivet 170 Earphone stem part 180 Ear piece sound Road entrance 190 The tip 200 when the earpiece is inserted into the outer ear 200 The tragus 210 The ear canal space 220 The ear piece sound path hole 230 The ear piece cup hole 240 The sound leakage prevention lid 250 The ear piece connection hole 260 The resin pipe 270 The sound path Connection hole 280 with tragus portion Sound path hole 290 on the insertion side of the external ear canal Silicon-urethane composite type connection hole 300 Ear piece connection hole 310 Urethane material

The invention described in claim 1 is an earpiece connected to and used by a stem portion of an earphone main body, and a cylindrical central tube connected to the stem portion, and a proximal end portion of the central tube on the stem portion side while being formed integrally with said central cylindrical cup portion formed to surround the outer periphery of, and Seng plug sound passage proximal end opposite the central tube and said proximal end, consists , in an intermediate position between the longitudinal center of the cup portion of the proximal end, the predetermined cup hole for connecting the inside and outside of the space of the cup portion is formed in at least one location, the central the cylinder, sound path hole which communicates inside and outside communicating in at least one position is arranged on the base end side, front hexene body is a earpiece, characterized in that is composed of a material different from that of the central cylindrical .

The invention described in claim 2 is the earpiece , wherein the cup portion hole has a diameter of Φ0.1 to Φ2.0.

The invention of claim 3 description, in the earpiece, the central cylinder is characterized in that the structure eliminating the sound path of the central cylinder by inserting the plug body of a cylindrical metal or resin earpiece It is.

The invention described in claim 4 is the earpiece characterized in that a tip end portion of the plug body exposed from the sound path base end portion of the central cylinder is hemispherical.

The invention of claim 5 description, in the earpiece, during insertion into the ear, the position of the cup portion bore, and characterized in that it position in the tragus portion or around the outside of the ear roadside of the ear It is an ear piece.

The invention of claim 6 description, in the earpiece, during insertion into an ear, the cup portion is a structure in close contact along the ear canal of the ear, the inner wall of the cup portion and the inlet of the ear canal It is an earpiece characterized by maintaining an equivalent shape.

Claims (19)

An earpiece connected to a stem portion of an earphone main body, comprising a base end portion of the earpiece and an outer peripheral portion of the cup, protruding from the bottom in the cup, and connected to the stem portion. A tube and a plug that plugs the tip opening of the center tube, and a predetermined hole for connecting the inside and outside of the cup part from the center in the longitudinal direction of the cup part to the middle position of the earphone is formed in at least one place, The central cylinder is provided with at least one internal and external hole on the base end side, and the plug at the base end of the central cylinder is made of a material different from the earpiece. Earpiece to do.   2. The earpiece according to claim 1, wherein at least one predetermined connection hole Φ0.1 to Φ2.0 is formed to be connected from the center in the longitudinal direction of the cup portion to an intermediate position where the earphone is attached. .   2. The earpiece according to claim 1, wherein a cylindrical metal or resin is inserted into the central tube from the proximal end to the central tube to eliminate the sound path of the central tube.     4. The earpiece according to claim 3, wherein a tip end portion of the main body having a cylindrical metal or resin inserted into a central cylinder and closed by a sound path is hemispherical.   3. The earpiece according to claim 2, wherein the hole position of the cup portion is located in or around the tragus portion outside the end of the ear canal in the forward direction, and the main sound entry direction when listening from the ear structure. Is provided in the direction of 15 to 75 degrees with respect to the axial center between both ends of the earpiece.   2. The earpiece according to claim 1, wherein the outer peripheral portion of the cup is in close contact with the ear canal, and the cup inner wall of the earpiece maintains the same shape as the ear canal entrance.   A silicon earpiece in a normal form, having a lid that is in close contact with the opening of the cup, providing a chamber chamber, and at least one chamber chamber in the sound path that is a cylindrical central tube connected to the stem portion The earpiece has a structure in which a predetermined hole to be connected to the head is formed, and at least one connection hole is provided in either the outer peripheral portion of the earpiece or the above-described forward direction of the lid.   8. The earpiece according to claim 7, wherein at least one predetermined connection hole Φ0.1 to Φ2.0 for connecting from the center in the longitudinal direction of the cup portion to the intermediate position of the earphone is formed, or at the front of the lid An earpiece characterized in that at least one connecting hole Φ0.1 to Φ2.0 is formed in the direction.   8. The earpiece according to claim 7, wherein a space is formed in the cup portion by having a silicon or rubber lid having a thickness of 0.5 to 2.0 mm at the open portion at the end of the cup portion. Earpiece characterized by chamber structure to be connected.   In the earpiece described in claim 7, the hole position of the cup portion is located in the forward direction of the tragus portion outside the ear canal end or the periphery thereof, and the main sound entry direction when listening from the ear structure is An earpiece characterized in that it is provided in the direction of 15 to 75 degrees with respect to the axial center between both earpieces.   An earpiece made of urethane in a normal form, characterized by a structure in which a trabecular portion on the outer periphery side of an earpiece on a side where a stem is attached is connected to a back side of an outer ear of a sound path with a pipe made of beer chloride or silicon.   12. The urethane earpiece according to claim 11, wherein at least one predetermined connection hole Φ0.1 to Φ2.0 is formed to connect the earpiece sound path portion from the center in the longitudinal direction of the cup portion to the middle position where the earphone is attached. Earpieces characterized by being.   12. The urethane earpiece according to claim 11, wherein the hole position of the earpiece is located in the forward direction and at or around the tragus portion outside the ear canal end, and is connected to the earpiece sound passage portion to listen from the ear structure. An earpiece characterized in that the main sound entering direction when taking is provided in a direction of 15 to 75 degrees with respect to the axial center between the earpieces.   It is an earpiece part of a custom-in-ear monitor in a normal form, characterized by a structure that is connected to the inner ear of the sound path by a hole located at or around the tragus part of the insertion part to the outer ear. Earpiece part for in-ear monitor.   Predetermined connection holes Φ0.1 to Φ2.0 to be connected from the outside of the external auditory canal of the custom-in-ear monitor outer ear insertion portion described in claim 14 to the back side of the outer ear of the custom-in-e monitor. Earpiece characterized in that it is formed in at least one place.   The hole position of the external ear canal of the custom-in-ear monitor described in claim 14 is located in or around the tragus portion outside the ear canal end in the forward direction, and the main sound entry direction when listening from the ear structure Is provided in the direction of 15 to 75 degrees with respect to the axial center between both ends of the earpiece.     It is a two-piece type earpiece that incorporates urethane inside the normal silicon earpiece. Adhesive or double-sided tape is used to attach the contact part between the silicon earpiece and the urethane earpiece. Earpiece characterized by an open structure.   A predetermined width to be connected to a part of the earpiece outer periphery joint portion in the axial direction from a portion corresponding to the outer side of the ear canal of the outer ear insertion portion of the two-piece structure of silicon and urethane described in claim 17 to the inner side of the outer ear of the sound path. An earpiece characterized in that at least one pipe having an inner diameter of Φ0.1 to Φ1.5 made of a groove having a depth of 0.1 to 2.0 mm, beer chloride, or silicon is formed.   The hole position of the ear canal of the two-piece structure of silicon and urethane according to claim 17 is located in the forward direction and at or around the tragus portion outside the end of the ear canal, and the main sound when listening from the ear structure An earpiece characterized in that an approach direction is provided in a direction of 15 to 75 degrees with respect to the axial center between both earpieces.

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