JP6482600B2 - Cover for in-ear earphone - Google Patents

Description

  The present invention relates to a cover for an in-ear type earphone that is attached to the in-ear type earphone and changes sound quality.

  Conventionally, for example, an in-ear type earphone (hereinafter referred to as an earphone) as disclosed in Patent Document 1 has been provided.

  Such an earphone includes a housing in which a driving body serving as a speaker is incorporated, and the housing includes a main body portion that is fitted into the ear canal cavity, the main body portion that is provided in the main ear portion, and the main body portion is provided in the ear ear cavity. And a distal end portion that is disposed toward the ear canal in a state of being fitted into the earpiece.

  The tip portion has a tapered shape, and a sound outlet for outputting sound inside the housing to the outside is formed at the tip.

  In this way, in the earphone, since the tip portion has the shape of the tip, it is difficult for the tip portion to press the wearer's ear when the body portion is fitted into the ear canal cavity and the sound outlet is directed to the ear canal, Thereby, it is said that the comfort of wearing can be improved.

Japanese Patent No. 5695703

  By the way, while the conventional earphones are more comfortable to wear, the adhesion between the tip portion and the inner peripheral surface of the wearer's outer ear canal becomes lower, so the low sound is generated at the inner periphery of the tip portion and the ear canal's entrance side. It becomes easy to leak outside through the surface. For this reason, the sound pressure of the bass sound is likely to drop, and the force of sound may be lost.

  Under such circumstances, there is a demand from users to easily enjoy powerful sounds that emphasize the bass with their earphones.

  Then, this invention makes it a subject to provide the cover for in-ear type earphones which can raise the adhesiveness with the inner peripheral surface of the entrance side of a wearer's ear canal, and can emphasize a bass.

A cover for an in-ear type earphone according to the present invention is a cover for an in-ear type earphone having a housing in which a sound outlet opening on the surface for outputting sound is formed, and a body portion that covers the housing, and a flexibility And a sound guide path for guiding the sound output from the sound outlet to the outside is formed in the main body part, and the sound guide path is formed inside the shield part. It is a cylindrical shape formed so as to be positioned, and has a tapered shape in which the distal end side in the axial direction is thinner than the proximal end side in the axial direction, and the main body portion is a mounting portion that is mounted on the housing. A mounting portion in which an introduction port is formed in accordance with an arrangement position of the sound outlet of the earphone, and a tubular sound conduit portion extending from the entire circumference of the introduction portion of the mounting portion, the sound guide path And the sound conduit part The sound conduit portion is formed so as to pass through the shielding portion, and the sound conduit portion includes a front side wall portion located on the front side in a state where the earphone is attached, and a state where the earphone is attached in and a side wall portion after positioned on the rear side, the front wall is curved to bulge toward the front SL front Te viewed smell, and the front wall, from the outer surface of the housing formed across the front of the inlet, the rear sidewall section, curved to be concave toward the front SL front Te viewed smell, and and the inner surface of the rear side wall portion itself of the proximal A gap is formed between the housing and the outer surface, and the housing extends in a direction away from the outer surface of the housing .

  According to such a configuration, after the body portion is put on the housing so that the position of the sound guide path matches the position of the sound outlet of the earphone, the sound guide path is made into the ear canal with the housing fitted in the ear canal cavity. When turned, the distal end side of the shielding part is also arranged toward the ear canal.

  Further, since the shielding portion has a tapered shape in which the distal end side in the axial direction (axial direction of the shielding portion) is thinner than the proximal end side in the axial direction, the shielding portion is located on the entrance side of the ear canal around the sound guide path. It adheres over the entire inner peripheral surface.

  Therefore, in the cover for the in-ear type earphone, the sound output from the sound outlet passes through the sound guide path located in the shielding portion that is in close contact with the entire inner peripheral surface on the entrance side of the ear canal. Therefore, it is possible to suppress the low sound from leaking outside the ear canal.

Further, according to such a configuration, when the mounting portion is mounted on the housing, the sound conduit portion is disposed so as to protrude from the surface of the housing, so that the inside of the sound conduit portion becomes a cavity.

  Therefore, in the cover for the in-ear type earphone, the shape of the sound conduit portion is easily deformed when the sound guide path (tip of the sound conduit portion) is directed to the ear canal with the earphone housing fitted into the ear canal cavity. This makes it easy to bring the shielding part into close contact with the entire inner peripheral surface on the entrance side of the ear canal.

  In this case, the base end portion of the sound conduit portion has an elliptical annular cross-sectional shape in the radial direction, and the distal end portion of the sound conduit portion has a substantially circular or substantially circular annular cross-sectional shape in the radial direction, The front end of the shielding part in the axial direction may be connected to the front end side of the sound conduit part.

  According to this configuration, the radial cross-sectional shape of the proximal end portion of the sound conduit portion is elliptical, and the cross-sectional shape in the radial direction of the distal end portion of the sound conduit portion is a perfect circle according to the shape of the entrance of the ear canal. Because it is annular or substantially circular, it is easy to collect the sound output from the sound outlet of the earphone on the proximal end side of the sound conduit part, and connected to the distal end part on the distal end side of the sound conduit part It becomes easy for the shielding part currently made to adhere | attach over the inner peripheral surface perimeter of the entrance side of an ear canal.

  Therefore, the cover for the in-ear earphone enhances the effect of transmitting the sound output from the sound outlet of the earphone without leaking outside the ear canal.

  As described above, the cover for an in-ear earphone according to the present invention can exhibit an excellent effect of enhancing the low-frequency sound by enhancing the adhesion with the inner peripheral surface on the entrance side of the wearer's ear canal.

FIG. 1 is a front view of an earphone cover and an earphone according to an embodiment of the present invention. FIG. 2 is an enlarged front view of the earphone cover and the earphone according to the embodiment. FIG. 3 is a plan view of the earphone cover and the earphone according to the embodiment. FIG. 4 is a partial cross-sectional view of the earphone cover according to the embodiment. 5A is an inner side view of the earphone cover, and FIG. 5B is a cross-sectional view taken along line VV in FIG. 3. FIG. 6 is an explanatory diagram of a usage state of the earphone equipped with the earphone cover according to the embodiment.

  Hereinafter, a cover for an in-ear earphone according to an embodiment of the present invention (hereinafter referred to as an earphone cover) will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the earphone cover is configured so as to be attached to the inside of the in-ear type earphone E.

  In this embodiment, as shown in FIG. 4, the earphone cover 1 is attached to an in-ear type earphone E (hereinafter referred to as earphone E) that outputs sound from a sound outlet SH formed by partially opening the housing E1. The following explanation will be given on the assumption that

  Further, the housing E1 of the earphone E includes an inner surface E10 disposed on the ear side and an outer surface E11 exposed to the outside of the ear when the earphone E is attached to the ear (fitted into the ear canal cavity). It is.

  The earphone cover 1 has the same configuration except that the earphone cover 1 is attached to the left earphone E and the right earphone E to be attached to the right earphone E, and thus has the same configuration. Now, as shown in FIG. 2, the earphone cover 1 attached to the left earphone E will be described.

  As shown in FIG. 3, the earphone cover 1 according to the present embodiment includes a main body portion 2 that covers the housing E <b> 1 and a cylindrical shielding portion 3 having flexibility.

  FIG. 3 is a plan view of the earphone E and the earphone cover 1, but the upper side on the paper surface is the front side of the wearer of the earphone E, and the lower side of the paper surface is the rear side of the wearer of the earphone E. Yes. That is, the vertical direction in FIG. 3 is the front-rear direction. The same applies to FIGS. 4 and 6.

  The main body 2 is a mounting portion 20 that is mounted on the housing E1, and a sound conduit portion 21 that extends from the mounting portion 20, and constitutes a sound guide path for guiding the sound of the sound outlet SH to the outside. And a sound conduit portion 21.

  The mounting portion 20 has flexibility and elasticity, and is configured such that the inner surface is in close contact with the surface of the housing E1. In addition, the mounting part 20 should just be comprised with materials, such as a silicon | silicone.

  Further, as shown in FIG. 4, the mounting portion 20 is formed with an introduction port H1 in accordance with the arrangement position of the sound outlet SH of the earphone E. The earphone E passes the sound outlet SH through the introduction port H1 as a sound conduit. It arrange | positions so that it may face in the part 21. FIG.

  Furthermore, the mounting portion 20 includes an insertion mounting portion 200 in which an insertion port H2 for inserting the housing E1 is formed, and a covering portion 201 formed integrally with the insertion mounting portion 200.

  The insertion mounting portion 200 is formed so that the inner diameter becomes smaller toward the insertion port H2. That is, the insertion mounting part 200 is formed so as to be tapered toward the insertion port H2.

  In addition, in this embodiment, in the use state in which the earphone E to which the earphone cover 1 is attached is attached to the wearer's ear in the insertion attachment portion 200, the portion disposed toward the front side is the front portion 200a, A portion disposed toward the rear side will be referred to as a rear surface portion 200b and will be described below.

  The cover part 201 includes an ear contact surface 201a that is in close contact with the inner surface E10 of the housing E1. The ear contact surface 201a is sandwiched between the inner surface E10 of the housing E1 and the wearer's ear in a state where the earphone E is attached (that is, a state where the housing E1 is fitted into the ear canal cavity). .

  The sound conduit portion 21 is cylindrical and is formed so as to extend from the entire circumference around the inlet H1 of the mounting portion 20. Further, the sound conduit portion 21 extends from the mounting portion 20 in a direction inclined inward with respect to the front-rear direction. In the present embodiment, the sound guide path R for guiding the sound output from the sound outlet SH to the outside is configured by the space inside the sound conduit section 21, and the opening on the distal end side of the sound conduit section 21 is formed. Is open to the outside.

  Moreover, in the sound conduit part 21, the shape of the tip is different from the cross-sectional shape in the radial direction on the base end side. More specifically, the shape of the tip of the sound conduit portion 21 is a perfect circle or a substantially perfect circle as shown in FIG. On the other hand, as shown in FIG. 5B, the cross-sectional shape in the radial direction on the proximal end side of the sound conduit portion 21 is an elliptical ring shape, and the long axis extends in the vertical direction. Extends along the front-rear direction.

  The sound conduit portion 21 is configured so that the cross-sectional shape gradually changes from the proximal end to the distal end, and in this embodiment, the sectional shape gradually becomes a perfect circular shape from the proximal end side to the distal end side ( Or a substantially perfect circle).

  Furthermore, in the sound conduit portion 21 according to the present embodiment, the front side wall portion 210 located on the front side when the earphone E is attached, and the rear side wall located on the rear side when the earphone E is attached. Part 211 is included.

  The front side wall portion 210 extends from the mounting portion 20 so as to cross the front of the introduction port H1 from the outer surface E11 side of the housing E1. That is, the front side wall part 210 is formed so that a virtual straight line passing through the base end and the tip end is inclined with respect to the front-rear direction (inclined in the left-right direction) in plan view.

  Further, the front side wall portion 210 is gently curved so as to slightly swell toward the front side (outward in the radial direction of the sound conduit portion 21) in plan view.

  The rear side wall 211 extends in a direction away from the outer surface E11 of the housing E1 from the base end side (base end side of the sound conduit portion 21) to the front end side (tip end side of the sound conduit portion 21). In addition, a gap is formed between the inner surface on the proximal end side of the rear side wall portion 211 and the outer surface E11 of the housing E1.

  Further, the rear side wall portion 211 is formed so that a virtual straight line passing through the base end and the distal end inclines with respect to the front-rear direction (inclined in the left-right direction) in plan view, and in plan view Is curved so as to be concave toward the front side (inward in the radial direction of the sound conduit portion 21).

  The shielding part 3 is cylindrical, and has a tapered shape in which the distal end side in the axial direction (axial direction of the shielding part 3) is thinner than the proximal end side in the axial direction.

  A sound conduit portion 21 enters the shielding portion 3. That is, the shielding part 3 is formed so that the sound guide path R is located inside. Further, the distal end of the shielding portion 3 is located on the distal end side of the sound conduit portion 21, and the proximal end of the shielding portion 3 is located on the proximal end portion side of the sound conduit portion 21. And in this embodiment, the whole inner peripheral surface of the front-end | tip part of the shielding part 3 is joined to the whole outer peripheral surface of the front-end | tip part of the sound conduit part 21. FIG.

  Therefore, a space is formed between the inner peripheral surface of the shielding part 3 and the outer peripheral surface of the shielding part 3.

  The earphone cover 1 according to the present embodiment is as described above. Next, how to use the earphone cover 1 according to the present embodiment will be described.

  When using the earphone cover 1, first, the mounting portion 20 is put on the housing E1. In this embodiment, the housing E1 is inserted into the mounting portion 20 in order from the sound outlet SH side through the introduction port H1, the position of the insertion mounting portion 200 is aligned with the outer surface E11 of the housing E1, and the ear contact surface 201a of the covering portion 201 is aligned. The position is matched with the inner surface E10 of the housing E1, and the position of the sound outlet SH of the earphone E is matched with the inlet H1.

  In this way, the earphone cover 1 is attached to the earphone E.

  When the earphone E to which the earphone cover 1 is attached is fitted into the ear (ear canal cavity), as shown in FIG. 6, the front surface portion 200a and the rear surface portion 200b of the insertion mounting portion 200 are arranged in the front-rear direction.

  When the sound conduit portion 21 is pushed into the entrance of the ear canal, the outer surface of the shielding portion 3 comes into close contact over the entire inner peripheral surface of the entrance of the ear canal, and the amount of the sound conduit portion 21 pushed into the entrance is reduced. As it increases, the shielding part 3 deforms so that the taper angle becomes smaller.

  Further, when the earphone E is fitted into the ear canal cavity, when the front wall portion 210 is pressed against the inner surface (front inner surface) of the ear canal cavity through the shield portion 3, the shield portion 3 approaches the front wall portion 210. The front side wall part 210 is deformed so as to bend rearward.

  In a state where the earphone E is fitted in the ear canal cavity, the ear contact surface 201a is disposed so as to face the inner surface of the ear canal cavity, and the rear side wall portion 211 is directed from the ear canal cavity toward the entrance of the ear canal. Deforms to extend.

  When the rear side wall portion 211 is pressed against the inner surface of the ear canal cavity through the shielding portion 3, the proximal end portion is deformed so as to approach the inner surface E10 of the housing E1, but the front side (of the sound conduit portion 21) is deformed. Since it is curved so as to be concave inward (inward in the radial direction), the distal end side has a posture extending toward the entrance of the ear canal.

  As described above, according to the earphone cover 1 according to the present embodiment, since the sound conduit portion 21 constituting the sound guide path R is configured to pass through the tapered shielding portion 3, the earphone cover 1 is When the housing E1 of the attached earphone E is fitted into the ear canal cavity and the distal end of the sound conduit portion 21 is directed to the ear canal, the distal end side of the shielding portion 3 is also arranged toward the ear canal.

  Further, since the shielding portion 3 has a tapered shape in which the distal end side is thinner than the proximal end portion side, when the distal end of the sound conduit portion 21 is pushed into the entrance of the ear canal, the outer surface of the shielding portion 3 becomes the entrance side of the ear canal. It adheres over the entire inner peripheral surface.

  In this way, the sound output from the sound outlet SH passes through the sound guide path R (inside the sound conduit portion 21) in the shielding portion 3 that is in close contact with the entire inner peripheral surface on the entrance side of the ear canal. Since it is transmitted into the ear canal, it is possible to suppress the low sound from leaking outside the ear canal.

  Therefore, the earphone cover 1 according to the present embodiment can achieve an excellent effect of enhancing the close contact with the inner peripheral surface on the entrance side of the wearer's ear canal and enhancing the bass.

  Further, in the earphone cover 1 according to the present embodiment, the sound conduit portion 21 extends from the mounting portion 20 toward the direction inclined inward with respect to the front-rear direction in the plane magazine, and therefore, in the ear canal cavity. When the housing E1 of the earphone E is fitted, the tip of the sound conduit portion 21 (that is, the opening of the sound guide path R) is easily disposed at a position corresponding to the entrance of the ear canal.

  Furthermore, in this embodiment, since the sound conduit portion 21 is tubular and is formed so as to extend from the entire circumference around the introduction port H1 of the mounting portion 20, the mounting portion 20 is mounted on the housing E1. In this case, since the sound conduit portion 21 is arranged so as to protrude from the surface of the housing E1, the inside of the sound conduit portion 21 is hollow.

  Therefore, the shape of the sound conduit portion 21 can be easily deformed when the tip of the sound conduit portion 21 is directed to the ear canal with the housing E1 of the earphone E being fitted into the ear canal cavity. 3 is easily adhered over the entire inner peripheral surface of the entrance side of the ear canal.

  Further, the sound conduit portion 21 is inserted into the shielding portion 3, but the shielding portion 3 has a tapered shape in which the distal end side is thinner than the proximal end side as described above. A space is formed between the inner peripheral surface 3 and the outer peripheral surface of the sound conduit portion 21. Therefore, the shape of the shield 3 is easily deformed corresponding to the shape of the inner surface of the ear canal cavity.

  Further, the front side wall portion 210 disposed on the front side in a state where the housing E1 of the earphone E is fitted into the ear canal cavity is slightly toward the front side (radially outward of the sound conduit portion 21) in a plan view. It is gently curved so as to swell, that is, it is formed in a substantially linear shape. Therefore, when the sound conduit portion 21 is pushed into the entrance of the ear canal, the front wall portion 210 is hardly separated from the ear canal, so that the position of the tip of the sound conduit portion 21 can be prevented from being shifted from the entrance of the ear canal. .

  Further, the rear side wall portion 211 extends in a direction away from the outer surface E11 of the housing E1 from the base end side (the base end side of the sound conduit portion 21) to the front end side (the front end side of the sound conduit portion 21). Therefore, a gap is formed between the inner surface on the proximal end side of the rear side wall portion 211 and the outer surface E11 of the housing E1.

  For this reason, the entire rear wall 211 is easily deformed. Therefore, when the housing E1 of the earphone E is fitted into the ear canal cavity, the shape of the inner surface of the ear canal cavity or the shape and position of the entrance of the ear canal Accordingly, the direction of the sound conduit portion 21 (the direction of the opening of the sound guide path R) can be easily adjusted.

  Thus, in the earphone cover 1 according to the present embodiment, the shielding portion 3 is easily brought into close contact with the inner peripheral surface of the ear canal entrance as the direction of the sound conduit portion 21 is easily matched with the entrance of the ear canal.

  Furthermore, since the earphone cover 1 according to the present embodiment extends from the mounting portion 20 so that the front side wall portion 210 crosses the front of the inlet H1 from the outer surface E11 side of the housing E1, the sound outlet SH is the ear canal. The sound output from the sound outlet SH can be reflected on the front side wall portion 210 and transmitted into the ear canal even if it is disposed at a position deviated from the entrance.

  Also, the cross-sectional shape in the radial direction of the proximal end portion of the sound conduit portion 21 is an elliptical ring shape, and the cross-sectional shape in the radial direction of the distal end portion of the sound conduit portion 21 is matched to the shape of the entrance of the external auditory canal. Since it is annular, the sound output from the sound outlet SH of the earphone E is easily collected on the proximal end side of the sound conduit portion 21, and is connected to the distal end portion on the distal end side of the sound conduit portion 21. It becomes easy for the shielding part 3 currently attached to adhere to the whole inner peripheral surface of the entrance side of the ear canal.

  Accordingly, the earphone cover 1 according to the present embodiment has an enhanced effect of transmitting the sound output from the sound outlet SH of the earphone E without leaking outside the ear canal.

  Note that the earphone cover of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

  In the said embodiment, although the shielding part 3 was connected to the mounting part 20 via the sound conduit part 21, when the sound guide path R is comprised with the mounting part 20, for example, the shielding part 3 is the mounting part 20. It may be connected directly to.

  Moreover, in the said embodiment, although the shielding part 3 was connected to the mounting part 20 via the sound conduit part 21, when the sound guide path R is comprised with the mounting part 20, for example, the shielding part 3 is mounted. It may be directly connected to the unit 20.

  In the said embodiment, although the front-end | tip of the shielding part 3 and the front-end | tip of the sound conduit part 21 were mutually joined, it is not limited to this structure. For example, the distal end of the shielding portion 3 may be joined to a position shifted from the distal end of the sound conduit portion 21 toward the proximal end side of the sound conduit portion 21.

  DESCRIPTION OF SYMBOLS 1 ... Earphone cover, 2 ... Main-body part, 3 ... Shielding part, 20 ... Mounting part, 21 ... Sound conduit part, 200 ... Insertion attachment part, 200a ... Front part, 200b ... Rear surface part, 201 ... Cover part, 201a ... Ear For the time being, 210 ... front side wall part, 211 ... rear side wall part, E ... earphone, E1 ... housing, E10 ... inner surface, E11 ... outer surface, H1 ... introduction port, H2 ... insertion port, R ... sound guide, SH ... Sound exit

Claims (2)

A cover for an in-ear earphone having a housing in which a sound outlet opening on the surface for outputting sound is formed, comprising a main body portion that covers the housing, and a cylindrical shielding portion having flexibility, The main body part is formed with a sound guide path for guiding the sound output from the sound outlet to the outside, and the shielding part is formed in a cylindrical shape so that the sound guide path is located inside. And the tip end side in the axial direction has a tapered shape that is thinner than the base end side in the axial direction, and the main body portion is a mounting portion that is mounted on the housing, and the position of the sound outlet of the earphone A mounting portion in which an inlet is formed, and a tubular sound conduit portion extending from the entire circumference of the inlet portion of the mounting portion, the sound conduit portion constituting the sound guide path, The sound conduit portion passes through the shielding portion. The sound conduit portion includes a front side wall portion located on the front side when the earphone is attached and a rear side wall portion located on the rear side when the earphone is attached, sidewall portion is curved to bulge toward the front SL front Te viewed smell, and the front wall is formed from the outer surface side of the housing across the front of the inlet, the rear side wall parts are gap is formed between the front Symbol curved to be concave toward the front side, and the rear side wall portion itself of the base end side of the inner surface and the outer surface of the housing Te viewed smell Thus, a cover for an in-ear type earphone extending in a direction away from the outer surface of the housing .   The proximal end portion of the sound conduit portion has an elliptical cross section in the radial direction, and the distal end portion of the sound conduit portion has a perfect circular shape or a substantially perfect circular shape in cross section in the radial direction. The cover for an in-ear type earphone according to claim 1, wherein a tip end in the axial direction is connected to a tip end side of the sound conduit portion.

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