JP6468267B2 - Earphone, band member used therefor, and method of using earphone - Google Patents

Description

  The present invention relates to an earphone that is worn on a user's ear and reproduces sound, a band member used for the earphone, and a method of using the earphone, and more particularly to an earphone capable of detaching a cord.

  The headphone and the earphone reproduce sound by applying an audio signal to a speaker unit that is placed close to the user's ear or inserted into the ear canal. There are various types of earphones worn on the user's ear.

  For example, some earphones have a relatively large speaker unit such as a headphone and an ear hook that is mounted so that the main body is placed on the auricle. In addition, there is an inner-ear type that is mounted so that the main body is contained inside the auricle and emits sound from the sound emitting surface of the main body toward the ear canal. In addition, there is an earphone of a type called a canal type that is mounted so that the main body portion is stored inside the auricle and the sound tube portion protruding from the main body portion is inserted into the ear canal together with the earpiece attached thereto. It is popular.

  Further, in some headphones and earphones, a connection cord that supplies an audio signal to a speaker unit that is an electroacoustic transducer housed in a housing is configured to be detachable. Earphone cords may need to prevent disconnection even when a strong force is applied as a result of the cord being caught by an unexpected object after responding to the user's movement, etc. There is a case where a cord connection terminal structure is provided in which a plug is provided on one end of the cable and a jack to which the plug is connected is provided on the housing. In the case of an earphone equipped with a headphone or an ear hook, it is possible to provide a plug / jack having a large size in a relatively large housing. However, in the case of an inner-ear or canal-type earphone, a small plug / jack is provided. May be required, and a small coaxial terminal called an MMCX terminal may be used.

  However, in the earphones using the MMCX terminal, the plug / jack coupling part rotates because it is a coaxial terminal, and the positional relationship between the housing and the cord cannot be fixed, and the usability during or after mounting is inconvenient and inconvenient. There is a problem that occurs. For example, if the cord moves due to the movement of the user after wearing the earphone, the connecting part of the plug / jack will rotate, so the cord may fall off the housing depending on the case, or the earphone may fall off the ear that is worn, Such a problem may occur. In particular, some recent earphones are designed to be used by turning the cord to the upper side of the auricle (auricle, outer edge of the auricle) or the base of the auricle. If it is possible to attach and detach, there is a problem that the above-described problem is likely to occur remarkably due to the influence of the curvature of the cord.

  In headphones and earphone cords, for example, conventionally, an earphone male / female connector fixed connection structure has an insertion terminal and an insulating seat, and the insertion terminal forms a fixing portion at a position close to the bottom, An earphone that extends at least one opposing convex portion on the edge of the fixed portion, the insertion terminal is mounted inside the insulating seat, and defines an insertion space between the insulating seat and the insertion terminal The connector has a male connector, a terminal insertion seat, and an insulating main body, the insulating main body extends an insertion portion that can be inserted into the insertion space, and the insertion convex portion is inserted correspondingly to the opposing convex portion. An earphone female connector that is provided in the insulating body and is electrically connected to the insertion terminal. There are emissions male-female connector fixing articulated structure (Patent Document 1).

  Also, for example, conventionally, a portable music playback device that plays music information while being carried, and is played back on the main body side connected to the parent unit on the main body side for playing back music information A child unit for listening to the music information, the child unit is a neck strap for wearing on the body, and the child unit is embedded in the neck strap and reproduced from a predetermined portion of the neck strap. The earphone cable capable of listening to music information and the parent unit are formed integrally with the parent unit, and used for connection with the parent unit to transmit the music information reproduced by the parent unit to the earphone cable. A detachable plug for insertion into a jack on the main body side, the plug being connected to the neck strap, A cable is electrically coupled to the jack on the main body side via the plug, and the plug is inserted into the jack on the main body side and is electrically coupled to the earphone cable; There is a portable music playback device including a connecting member that can be inserted and connected to an insertion portion on the main body side of the parent unit for connecting the unit and the child unit (Patent Document 2).

  However, when the cord is configured to be detachable in the conventional earphone, if a special engagement relationship as described above is provided at the plug / jack joint, for example, the compatibility with other cords is lost. As a result, there is a problem that adoption is difficult. In particular, in the canal type earphone in which the outlet of the sound wave to be reproduced is inserted into the user's ear canal entrance, a small coaxial terminal in which the plug / jack is relatively rotated is widely used. In response to the jack, it is necessary to suppress the problem that the cord is dropped from the housing or the earphone is dropped from the worn ear even if the cord moves due to the movement of the user.

Utility Model Registration No. 3200118 JP 2006-295589 A

  The present invention has been made in order to solve the above-described problems of the prior art, and an object of the present invention relates to an earphone capable of detaching and detaching a cord from a housing even if the cord moves due to a user's movement. An object of the present invention is to provide an earphone that suppresses a problem that a cord is dropped or an earphone is dropped from a worn ear.

  The earphone of the present invention includes a speaker unit for electroacoustic conversion of an audio signal into a sound wave, a cord having a plug portion for attaching a plug at least on one end side thereof, and supplying the audio signal to the speaker unit, and a speaker unit therein. A housing having a cord connecting portion including a jack for connecting and plugging a plug of the cord so that the plug can be inserted and removed, and a cylindrical elastic body having a predetermined length dimension and an inner diameter dimension, and by an elastic force generated due to elastic deformation An inner wall surface that defines an inner diameter dimension is in contact with a plug portion of the cord and a cord connection portion of the housing, and includes a band member that suppresses rotation and dropping of the cord with respect to the housing.

  Preferably, in the earphone of the present invention, the plug portion of the cord and the cord connecting portion of the housing each have a substantially cylindrical outer shell that fits into a substantially cylindrical space defined by the inner wall surface of the band member, The inner diameter of the band member before elastic deformation is equal to or less than the diameter of the outer shell.

  Preferably, in the earphone of the present invention, the inner diameter dimension of the band member before elastic deformation is equal to or larger than the diameter dimension of the cord member of the cord, and the band member grasps both the plug portion of the cord and the cord connection portion of the housing. If not, the band member can be moved on the cord so that the cord member penetrates the band member.

  Preferably, in the earphone of the present invention, when the band member does not grip both the plug portion of the cord and the cord connecting portion of the housing, the band connecting member is moved on the housing, and the cord connecting portion becomes the band member. It can arrange | position so that it may penetrate.

  Preferably, in the earphone of the present invention, the cylindrical band member has a chamfered corner between the end surface and the inner wall surface.

  Preferably, in the earphone of the present invention, the cylindrical band member includes a surface-treated portion that increases friction with a user's finger on an outer wall surface that defines an outer diameter dimension.

  The band member of the present invention constitutes the above-described earphone.

  The earphone according to the present invention includes a speaker unit for electroacoustic conversion of an audio signal into a sound wave, a cord having a plug portion to which a plug is attached at least at one end thereof, and supplying the audio signal to the speaker unit; A housing having a cord connecting portion including a jack for connecting a plug of a cord so that a plug of the cord can be inserted and removed, and a cylindrical elastic body having a predetermined length and inner diameter, and accompanying elastic deformation A method of using an earphone comprising: a band member that has an inner wall surface that defines an inner diameter dimension due to an elastic force generated in contact with a plug portion of a cord and a cord connecting portion of the housing, and that prevents the cord from rotating and dropping with respect to the housing The cord member of the cord can be passed through the band member and the band member can be moved on the cord. Placing the cord member of the housing through the band member so that the band member can be moved on the housing, inserting the cord plug into the jack of the housing, and earphone housing. Mounting the predetermined position of the cord, shaping the cord into a desired shape, setting the angle at which the plug rotates relative to the inserted jack to a desired angle, and moving the band member from the cord member of the cord. Or by moving the band member from the cord connecting portion of the housing and attaching the inner wall surface of the band member to the cord plug portion and the cord connecting portion of the housing. Fixing so as to suppress the problem.

  Preferably, in the method of using the earphone of the present invention, the cylindrical band member includes a surface-treated portion that increases friction with a user's finger on an outer wall surface that defines an outer diameter dimension. When the cord member is moved from the cord member or when the band member is moved from the cord connecting portion of the housing, the user's finger comes into contact with the surface treatment portion provided on the outer wall surface.

  The operation of the present invention will be described below.

  The earphone of the present invention includes a speaker unit for electroacoustic conversion of an audio signal into a sound wave, a cord having a plug portion for attaching a plug at least on one end side thereof, and supplying the audio signal to the speaker unit, and a speaker unit therein. A housing having a cord connecting portion including a jack that is attached to connect the plug of the cord so as to be insertable / removable, and a band member that suppresses rotation and dropping of the cord with respect to the housing. Therefore, in the earphones that can be attached / detached with a cord, even if the cord moves due to the movement of the user, the earphone that suppresses the problem that the cord is dropped from the housing or the earphone is dropped from the worn ear is realized. it can.

  The band member of the earphone is formed of a cylindrical elastic body having a predetermined length dimension and an inner diameter dimension. In the band member, the inner wall surface that defines the inner diameter dimension is brought into contact with the plug portion of the cord and the cord connecting portion of the housing by the elastic force generated along with the elastic deformation and restrains them together. That is, the band member is substantially fixed so as to hold both the plug portion of the cord and the cord connecting portion of the housing which are arranged close to each other in the length dimension direction. As a result, the band member prevents the cord connecting portion of the earphone housing and the plug portion of the cord from moving relative to each other by elastic force and frictional force, thereby suppressing the rotation and dropping of the cord with respect to the earphone housing. can do. The earphone only needs to be provided with a band member formed of a cylindrical elastic body, and it is not necessary to provide a special engagement relationship at the plug / jack connection portion, so that compatibility with other cords can be maintained. it can.

  In the earphone of the present invention, the plug portion of the cord and the cord connecting portion of the housing each have a substantially cylindrical outer shell that fits in a substantially cylindrical space defined by the inner wall surface of the band member. preferable. If the inner diameter dimension of the band member before elastic deformation is appropriately designed to be equal to or less than the diameter dimension of the outer shell, the cord plug portion and the cord cord connection of the housing are placed in a substantially cylindrical space defined by the inner wall surface of the band member. Since the elastic force generated by the elastic deformation of the band member and the frictional force against the housing and cord of the inner wall surface of the band member act from the band member, the housing and the cord do not relatively move relatively. Can be fixed.

  Preferably, in the earphone of the present invention, the inner diameter dimension of the band member before elastic deformation is equal to or larger than the diameter dimension of the cord member of the cord, and smaller than the diameter dimension of the outer shell of the cord plug portion and the housing cord connection portion. Set as follows. By doing so, the band member moves on the cord when the band member does not grip the cord plug portion and the cord connecting portion of the housing, and the cord member penetrates the band member. It is possible to arrange as follows. Similarly, the band member may be moved on the housing and arranged so that the cord connecting portion penetrates the band member. In addition, the cylindrical band member is provided with a surface-treated portion that increases the friction with the user's finger on the outer wall surface where the corner between the end surface and the inner wall surface is chamfered or defines the outer diameter dimension. You may make it. If the band member is configured as described above, an earphone usage method described later becomes convenient.

  That is, the method of using the earphone of the present invention includes the following procedures and steps. First, the cord member of the cord is pierced through the band member, and the band member is arranged to be movable on the cord, or the cord connecting portion of the housing is penetrated to the band member and the band member is arranged to be movable on the housing. Then, the cord plug is inserted into the jack of the housing. That is, first, the band member is prepared to be temporarily fixed to the cord or the housing, and the cord is connected to the housing of the earphone. Then, the earphone housing is mounted at a predetermined position on the ear, the cord is shaped into a desired shape, and the angle at which the plug rotates relative to the inserted jack is set to a desired angle. Therefore, the user can set the relative position of the cord with respect to the housing to a desired state even when the cord is bent in the wearing state where the earphone is used.

  Then, the band member is moved from the cord member of the cord or the band member is moved from the cord connecting portion of the housing so that the inner wall surface of the band member is brought into contact with the cord plug portion and the cord connecting portion of the housing. Since the band member restrains them together, it can be fixed so as to suppress the rotation and dropping of the cord with respect to the housing while keeping the relative position of the cord with respect to the housing in a desired state. When the cylindrical band member includes a surface-treated portion that increases friction with the user's finger on the outer wall surface that defines the outer diameter, when the band member is moved from the cord member of the cord, or When the band member is moved from the cord connecting portion of the housing, the user's finger comes into contact with the surface treatment portion provided on the outer wall surface, so that there is an advantage that the user can easily move the band member.

  If the band member is used as described above, the relative position of the cord with respect to the housing, including the bend of the cord, can be set to a desired state. If the user moves the band member and attaches the inner wall surface of the band member to the cord plug part and the cord connection part of the housing before the earphone is put on the ear, it is inserted. This is because the rotation of the plug with respect to the jack is suppressed in advance, and it becomes difficult to set the relative position of the cord with respect to the housing to a desired state due to the bending of the cord. Therefore, if the cord is fixed so as to prevent the cord from rotating and dropping with respect to the housing with the band member immediately after the earphone is attached to the ear, even if the cord moves due to the movement of the user after the attachment, the cord can be removed from the housing. It is possible to suppress inconveniences such as falling off or earphones dropping off from the worn ears.

  The earphone of the present invention can suppress the problem that even if the cord moves due to the movement of the user, the cord is dropped from the housing or the earphone is dropped from the ear that is worn.

It is a figure explaining the earphone by preferable embodiment of this invention. (Example 1) It is a figure explaining the band member by preferable embodiment of this invention. (Example 1) It is a figure explaining the earphone by preferable embodiment of this invention. (Example 1) It is a figure explaining the other band member by preferable embodiment of this invention. (Example 2) It is a figure explaining the earphone by other preferable embodiment of this invention. Example 3

  Hereinafter, although the earphone by preferable embodiment of this invention is demonstrated, this invention is not limited to these embodiment.

  1 and 3 are diagrams illustrating an earphone 1 according to a preferred embodiment of the present invention. Specifically, FIG. 1 shows a perspective view of the earphone 1 worn on one ear of the user, and shows a case where a band member 10 is provided. FIG. 3 shows a case where the band member 10 is moved to the cord 7 and the plug portion 8 and the cord connecting portion 5 of the cord 7 are separated. FIG. 2 is a perspective view illustrating the band member 10 according to a preferred embodiment of the present invention. In addition, illustration and description are abbreviate | omitted about the structure of the other earphone 1 unnecessary for description of this invention.

  The earphone 1 of the present embodiment is a canal-type earphone in which the outlet of a sound wave to be reproduced is inserted into the ear canal hole of the user's pinna, and the cord 7 can be attached and detached. The earphone 1 includes substantially symmetrical earphones that are respectively attached to the left and right ears of the user, and can support stereo reproduction. Hereinafter, a configuration corresponding to one ear of the earphone 1 will be described. Of course, the form of the earphone 1 is not limited to the case of the present embodiment.

  In the earphone 1, a speaker unit 3 (not shown) that reproduces sound by supplying an audio signal via a cord 7 to the housing 2 is attached inside. The speaker unit 3 is an electrodynamic electroacoustic transducer that includes a magnetic circuit having a magnetic gap and vibrates a diaphragm that is inserted into the magnetic gap and connected to a voice coil to which an audio signal is supplied. The speaker unit 3 radiates sound waves having an antiphase relationship to the front side and the back side of the diaphragm (not shown). Therefore, it is necessary to attach the speaker unit 3 to the housing 2 so as to separate one side and the other side of the diaphragm of the speaker unit 3.

  The housing 2 of the present embodiment can be mounted with a speaker unit 3 having a diameter corresponding to the size of the ear canal hole of the user's pinna. The housing 2 includes a nozzle portion arranged on the user's ear canal hole side, and a jack that connects the base member 4 constituting the cavity to the rear side of the speaker unit 3 and the plug 8b of the plug portion 8 of the cord 7 so as to be inserted and removed. A cord connecting portion 5 including 5b. The base member 4 of the housing 2 defines an acoustic space on the front side of the diaphragm of the speaker unit 3, and forms an acoustic space separated from the front acoustic space on the rear side where the magnetic circuit of the speaker unit 3 exists. To do. The cord connecting part 5 may form a cavity on the rear side of the speaker unit 3 together with the base member 4.

  The base member 4 and the cord connection portion 5 are made of a metal material or a resin material, and include a speaker unit attachment portion for attaching the speaker unit 3 to the inner wall portion. The base member 4 includes a nozzle portion that is formed with a tip end side narrower than the speaker unit mounting portion so as to be inserted into the ear canal hole of the user's pinna. The nozzle part forms an acoustic path on the inner side for guiding the sound wave radiated from the speaker unit 3 to the user's ear canal.

  In the nozzle portion of the base member 4, an earpiece mounting portion for mounting the earpiece 6 is formed on the outer peripheral surface. If the cap-shaped earpiece 6 having elasticity is attached, a canal-type earphone in which the earpiece 6 is in close contact with the ear canal hole can be realized. The earpiece 6 allows the user to stably wear the earphone 1 on the auricle. A protective net as a breathable protective member may be attached to the opening end of the nozzle portion. The protective net prevents inconveniences such as foreign matter entering inside from the opening end of the nozzle portion and closing the acoustic path. The base member 4 may include a leak hole or port (not shown) that communicates with the cavity and guides the sound wave to the external space.

  On the other hand, the cord connection unit 5 can connect a cord 7 that supplies an audio signal to the speaker unit 3. The cord connecting portion 5 has a jack 5b for connecting the plug 8b of the cord 7 in a substantially cylindrical outer shell 5a so that the plug 8b can be inserted and removed. The jack 5b is connected to the speaker unit 3 by an internal wiring. The dimension of the substantially cylindrical outer shell 5a of the cord connecting portion 5 of this embodiment is about 7.5 mm in diameter.

  Further, the cord 7 includes a plug 8b connected to the jack 5b of the cord connecting portion 5 at the distal end portion of the outer shell 8a of the substantially cylindrical plug portion 8. In the plug portion 8 of the cord 7 of this embodiment, the dimension of the substantially cylindrical outer shell 8a is about 7.5 mm in diameter. The cord 7 is connected to a plug 8b provided on one end of a cord member 9 for transmitting an audio signal. It should be noted that the other end of the cord member 9 of the cord 7 may be provided with a plug (not shown) connected to an audio signal output terminal of another audio device or the like. The diameter dimension of the cord member 9 is smaller than the diameter dimension of the plug portion 8 and is about 3.0 mm.

  Since the jack 5b and the plug 8b of the present embodiment have a structure of a small coaxial terminal called an MMCX terminal, the earphone 1 is connected to the cord connecting portion 5 of the housing 2 and the plug of the cord 7 as shown in FIG. The part 8 can be easily connected / disconnected. However, since the MMCX terminal has a structure in which the jack 5b and the plug 8b can be rotated relatively at the time of connection, the cord connecting portion 5 and the plug portion 8 are relatively rotated even if connected. . That is, even if the cord connecting portion 5 and the plug portion 8 are connected, the rotation of the cord 7 with respect to the housing 2 cannot be fixed.

  Therefore, the earphone 1 of this embodiment includes a band member 10 that suppresses the rotation and dropping of the cord 7 with respect to the housing 2. As shown in FIG. 2, the band member 10 has a cylindrical shape having a predetermined length L (= about 10 mm) and an inner diameter dimension φa (= about 6.0 mm) corresponding to the housing 2 and the cord 7 of the earphone 1. It is an elastic body. As for the cylindrical band member 10, the substantially cylindrical inner wall surface 10a defines the inner diameter dimension φa.

  The band member 10 of the present embodiment is a hollow cylindrical material made of a flexible silicon resin, and can be extended in the outer peripheral direction by elastic deformation. Therefore, the inner diameter dimension φa is up to 12.0 mm. It can be deformed in range. Therefore, the inner diameter dimension φa of the band member 10 before elastic deformation is smaller than the diameter dimension of the outer shells 5a and 8a of the cord connecting part 5 and the plug part 8, and larger than the diameter dimension of the cord member 9. .

  The cord connecting portion 5 of the housing 2 and the plug portion 8 of the cord 7 each have a shape that fits into a substantially cylindrical space defined by the inner wall surface 10a of the band member 10. Therefore, the tube length L and the inner diameter φa of the band member 10 are appropriately adjusted in accordance with the dimensions of the cord connecting portion 5 of the housing 2 and the outer shell portions 5a and 8a of the plug portion 8 of the cord 7. preferable. Moreover, the band member 10 should just be a hollow cylindrical material which has the softness | flexibility which can obtain a required internal-diameter dimension, The material is not restricted to a silicon resin. The band member 10 may be other than a silicon resin, and may be, for example, a rubber material, an elastomer resin material, a PVC (polyvinyl chloride) resin material, or the like.

  As shown in FIG. 1, when the band member 10 is used for the earphone 1, the rotation and dropping of the cord 7 with respect to the housing 2 can be suppressed. The band member 10 is attached so as to cover a part of the outer shell 8 a of the plug portion 8 of the cord 7 and a part of the outer shell 5 a of the cord connecting portion 5 of the housing 2. Since the band member 10 is a cylindrical elastic body, when it is elastically deformed to a large size to the diameter dimensions of the cord connecting part 5 and the outer shells 5a and 8a of the plug part 8 which are larger than the inner diameter dimension φa before elastic deformation, the inner diameter side The elastic force which tries to become small works. Therefore, the band member 10 has an inner wall surface 10a that defines an inner diameter dimension φa by an elastic force caused by elastic deformation, and the outer shell 8a of the plug portion 8 of the cord 7 and the outer shell 5a of the cord connecting portion 5 of the housing 2. To prevent relative drop at the time of connection and to prevent falling off.

  In other words, the elastically deformable band member 10 is substantially fixed so that both the plug portion 8 of the cord 7 and the cord connecting portion 5 of the housing 2 which are arranged close to each other in the length dimension direction are held inside. The band member 10 restrains the plug portion 8 of the cord 7 and the cord connecting portion 5 of the housing 2. The band member 10 prevents the cord connecting portion 5 of the housing 2 of the earphone 1 and the plug portion 8 of the cord 7 from moving relatively by elastic force and frictional force. The rotation can be suppressed. As a result, since the positional relationship between the housing 2 and the cord 7 can be fixed, even if the cord 7 moves due to the movement of the user wearing the earphone 1, the cord 7 is dropped from the housing 2 or the ear that is worn Therefore, it is possible to suppress the problem that the earphone 1 falls off.

  Since the band member 10 can be configured relatively inexpensively, a plug / jack such as an MMCX terminal, which is widely used in a canal type earphone in which an outlet of a sound wave to be reproduced is inserted into the user's ear canal entrance, is relatively Therefore, it can be easily applied to a small coaxial terminal that rotates, and the rotation and dropping of the cord 7 with respect to the housing 2 of the earphone 1 can be suppressed while maintaining compatibility.

  Note that the force that suppresses the rotation and dropping of the cord 7 with respect to the housing 2 exerted by the band member 10 is an elastic force and a frictional force generated along with the elastic deformation and is a relatively weak force. As a result of the cord being caught by an unexpected object in response to the above, if the cord is pulled and a relatively strong force is applied, the cord 7 is dropped from the housing 2 even if the band member 10 is provided. Thus, disconnection of the cord 7 of the earphone 1 can be prevented.

  A method of fixing the positional relationship between the housing 2 of the earphone 1 and the cord 7 with the band member 10 will be described with reference to FIG. First, as shown in the drawing, the cord member 9 of the cord 7 is penetrated through the band member 10, and the band member 10 is movably disposed on the cord 7. Since the inner diameter φa of the band member 10 is larger than the diameter of the cord member 9 before elastic deformation, the user can temporarily fix the band member 10 on the cord member 9 so as to be movable.

  Thereafter, the user inserts the plug 8 b of the plug portion 8 of the cord 7 into the jack 5 b of the cord connection portion 5 of the housing 2. That is, after preparing the band member 10 to be temporarily fixed to the cord member 9 first, the cord 7 is connected to the housing 2 of the earphone 1. Then, the user attaches the housing 2 of the earphone 1 to a predetermined position of the ear, and thereafter shapes the cord member 9 of the cord 7 into a desired shape, and the inserted plug 8b rotates with respect to the jack 5b. The angle to be set is set to a desired angle. Therefore, the user can set the relative position of the cord 7 with respect to the housing 2 to a desired state even when the cord 7 is bent in the wearing state where the earphone 1 is used.

  Then, the user moves the band member 10 from the cord member 9 of the cord 7 toward the housing 2, and brings the inner wall surface 10 a of the band member 10 into contact with the plug portion 8 of the cord 7 and the cord connection portion 5 of the housing 2. If it attaches in this way, it can fix so that rotation and dropping of the code | cord | chord 7 with respect to the housing 2 may be suppressed, maintaining the relative position of the code | cord | chord 7 with respect to the housing 2. FIG.

  The user may move the band member 10 before attaching the earphone 1 to the ear so that the inner wall surface of the band member 10 is brought into contact with the plug portion 8 of the cord 7 and the cord connecting portion 5 of the housing 2. However, in this case, since the rotation of the plug 8b with respect to the inserted jack 5b is previously suppressed, the relative position of the cord 7 with respect to the housing 2 is set to a desired state due to the bending of the cord member 9 or the like. It becomes difficult to do.

  On the other hand, if the band member 10 is fixed so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2 immediately after the earphone 1 is attached to the ear as described above, the cord 7 is caused by the movement of the user after the attachment. Even if it moves, it is possible to suppress the inconvenience that the cord 7 is dropped from the housing 2 or the earphone 1 is dropped from the worn ear. That is, if the band member 10 is used as described above, the relative position of the cord 7 with respect to the housing 2 including the bend of the cord member 9 can be set to a desired state. If the relative position of the cord 7 with respect to the housing 2 is set to a desired state with the band member 10 as described above, the user can continue to use the earphone 1 in the desired state without moving the band member 10.

  In the case of FIG. 3, the band member 10 is first prepared to be temporarily fixed to the cord member 9, but the band member 10 is moved further upward on the cord connection portion 5 of the housing 2 closer to the base member 4. Then, the cord connecting portion 5 may be temporarily fixed so as to penetrate the band member 10. Since the inner diameter dimension φa of the band member 10 is elastically deformed and becomes larger than the diameter dimension of the cord connection portion 5 of the housing 2, the user temporarily fixes the band member 10 so as to be movable on the cord connection portion 5 of the housing 2. can do.

  If prepared in this way, the user then attaches the housing 2 of the earphone 1 to a predetermined position of the ear, shapes the cord member 9 of the cord 7 into a desired shape, and the inserted plug 8b is inserted into the jack 5b. The angle of rotation with respect to the desired angle can be set. Thereafter, when the user moves the band member 10 from the housing 2 toward the cord 7 and attaches the inner wall surface 10a of the band member 10 so as to contact the plug portion 8 of the cord 7 and the cord connection portion 5 of the housing 2. In the same manner as described above, the cord 7 can be fixed so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2 while keeping the relative position of the cord 7 with respect to the housing 2 in a desired state.

  FIG. 4 is a diagram illustrating a band member 10 according to another preferred embodiment of the present invention. Specifically, FIG. 4A, FIG. 4B, FIG. 4C, and FIG. 4D are variations that can be used in place of the band member 10 of the earphone 1 in the above embodiment. Similarly, the rotation and dropping of the cord 7 with respect to the housing 2 can be suppressed. Therefore, common components are denoted by common reference numerals and description thereof is omitted.

  As shown in FIG. 4, the tubular band member 10 may have a slope 10 b whose corners between the end surface and the inner wall surface 10 a are chamfered. By providing the slope 10b on the inner wall surface 10a side of the band member 10, the cord connecting portion 5 of the housing 2 having the substantially cylindrical outer shell 5a and the plug portion 8 of the cord 7 having the substantially cylindrical outer shell 8a. Then, the band member 10 can be easily fitted. As a result, the user who moves the temporarily fixed band member 10 to the connecting portion of the cord 7 can be easily fixed so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2.

  In addition, the cylindrical band member 10 may include a surface-treated portion that increases friction with the user's finger on the outer wall surface 10c that defines the outer diameter. The surface-treated portion is a portion formed by, for example, providing protrusions, grooves, depressions or protrusions on the outer wall surface 10c, or performing a chemical surface treatment for roughening the surface. In the case shown in FIG. 4 (a), a plurality of annular protrusions protruding on the outer peripheral side of the outer wall surface 10c are provided. 4B, the outer wall surface 10c is provided with a plurality of grooves having a V-shaped cross section. In the case shown in FIG. 4C, a plurality of dimple-like recesses are provided on the outer wall surface 10c. Further, in the case illustrated in FIG. 4D, one protrusion is provided on the outer wall surface 10 c so as to protrude along the direction defining the length dimension L.

  When these band members 10 are used, when the band member 10 temporarily fixed by the user is moved from the cord member 9 of the cord 7 or when the band member 10 is moved from the cord connecting portion 5 of the housing 2. The user's finger comes into contact with the surface-treated portion made of a protrusion, groove, concave or convex provided on the outer wall surface 10c. Therefore, since these protrusions, grooves, concaves or convexes increase friction with the user's finger, there is an advantage that the user can easily move the band member 10. As a result, if the user fixes the cord 7 with respect to the housing 2 with the band member 10 immediately after the earphone 1 is worn on the ear, the cord 7 is dropped from the housing 2 or worn. The inconvenience that the earphone 1 falls off from the worn ear can be suppressed.

  Of course, the surface treatment portion provided on the outer wall surface 10c of the band member 10 is not limited to the case illustrated in FIGS. You may provide in the outer wall surface 10c combining a processus | protrusion, a groove | channel, a concave or convex, and chemical surface treatment. The band member 10 only needs to have some surface treatment applied to the outer wall surface 10c to increase the frictional force acting between the outer wall surface 10c and the user's finger so as to make it difficult to slip.

FIG. 5 is a diagram for explaining an earphone 1a according to another preferred embodiment of the present invention. Specifically, FIG. 5A is a perspective view of the earphone 1a, and FIG. 5B is a side view of the earphone 1a. The earphone 1a is an earphone in which the cord 7 can be attached and detached in the same manner as the earphone 1 of the previous embodiment. Therefore, about the structure which is common in a previous Example, a common code | symbol is attached | subjected and description is abbreviate | omitted.

  The earphone 1a is a canal-type earphone that is assumed to be used by turning the cord 7 to the upper side of the user's auricle (auricle, outer edge of the auricle) or the base of the auricle. Accordingly, the cord connecting portion 5 of the housing 2 is provided on the upper side of the base member 4, and a structure in which the detachable cord 7 is connected so that the plug portion 8 and the cord member 9 of the cord 7 project in an obliquely upward direction. It has become. Also in this embodiment, since the jack 5b and the plug 8b (not shown) have a structure of a small coaxial terminal called an MMCX terminal, the earphone 1 is connected to the cord connecting portion 5 of the housing 2 and the plug of the cord 7. The part 8 can be easily connected / disconnected. However, even if the cord connecting portion 5 and the plug portion 8 are connected, they are relatively rotated.

  Therefore, the earphone 1a of this embodiment includes a band member 10 that suppresses the rotation and dropping of the cord 7 with respect to the housing 2. The band member 10 of the present embodiment is a hollow cylindrical material made of a flexible silicone resin, and conforms to the shape of the cord connecting portion 5 of the housing 2 and the plug portion 8 of the cord 7. It has a basic shape with a part of the cylinder cut out. The band member 10, which is a hollow cylindrical material, may be conical as well as cylindrical. In the band member 10, the inner diameter dimension φa of the band member 10 before elastic deformation is smaller than the diameter dimension of the outer shells 5 a and 8 a of the cord connecting part 5 and the plug part 8 and larger than the diameter dimension of the cord member 9. Any size is acceptable. The elastically deformable band member 10 substantially fixes both the plug portion 8 of the cord 7 and the cord connecting portion 5 of the housing 2 so that the cord 7 is dropped from the housing 2 or attached. Problems such as the earphone 1a dropping off from the ear can be suppressed.

  In particular, the earphone 1a is a canal-type earphone that is assumed to be used by turning the cord 7 to the upper side of the user's pinna (auricle, outer edge of the pinna) or the base of the pinna. It is more preferable to employ a usage method in which the band member 10 fixes the cord 7 so as to prevent the cord 7 from rotating and dropping immediately after the cord is attached to the ear. When the user turns the cord 7 to the upper side of the pinna and uses it, the cord 7 is connected to the housing 2 with a coaxial plug / jack connection. This is because the phenomenon of rotating at a portion is likely to occur.

  Therefore, as in the case of FIG. 3 in the previous embodiment, the following usage method of the band member 10 is particularly desirable. The user temporarily fixes the band member 10 so as to be movable on the cord 7. Next, the user connects the cord 7 to the housing 2 of the earphone 1a. Then, the user attaches the housing 2 of the earphone 1 to a predetermined position of the ear, and thereafter shapes the cord member 9 of the cord 7 into a desired shape, and the inserted plug 8b rotates with respect to the jack 5b. The angle to be set is set to a desired angle. Then, the user moves the band member 10 from the cord member 9 of the cord 7 toward the housing 2, and brings the inner wall surface 10 a of the band member 10 into contact with the plug portion 8 of the cord 7 and the cord connection portion 5 of the housing 2. The cord 7 is fixed so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2 while keeping the relative position of the cord 7 with respect to the housing 2 in a desired state.

  That is, in the case of the earphone 1a assumed to be used by turning the cord 7 to the upper side of the user's pinna (auricle, outer edge of the pinna) or the base of the pinna, the earphone 1a is attached to the ear. It is important to configure the band member 10 so that the cord 7 can be fixed so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2 immediately after.

  The band member 10 is a hollow cylindrical material made of a flexible silicone resin, and can be extended in the outer peripheral direction by elastic deformation. Therefore, immediately after the earphone 1a is attached to the ear, the plug of the cord 7 It can be moved to the connection part of the cord connection part 5 of the part 8 and the housing 2. Accordingly, it is possible to prevent a problem such that the housing 2 of the earphone 1a first attached to the ear is dropped by the operation of the cord 7 when the ear is attached.

  Moreover, the band member 10 may be provided with a surface-treated portion that increases friction with a user's finger on the outer wall surface 10c that defines a cylindrical outer diameter dimension, as in the previous embodiment. When the band member 10 temporarily fixed by the user is moved from the cord member 9 of the cord 7, the user's finger comes into contact with the surface-treated portion made of a protrusion, groove, concave or convex provided on the outer wall surface 10c. Therefore, there is an advantage that the friction with the user's finger increases and the user can easily move the band member 10.

  As a result, if the user fixes the cord member 7 so as to suppress the rotation and dropping of the cord 7 with respect to the housing 2 immediately after the earphone 1a is attached to the ear, the cord 7 is dropped from the housing 2, or Inconveniences such as the earphone 1 falling off from the worn ear can be suppressed. Of course, the jack 5b and the plug 8b employed in the cord 7 that can be attached to and detached from the housing 2 of the earphone 1 are not limited to the MMCX terminal as described above, but may be a mini plug and a corresponding jack, and other coaxial terminals may be used. Including a connecting terminal structure can be adopted.

  The earphone of the present invention is not limited to a canal-type earphone as shown in the figure, and may be an earphone provided with another ear hook. Moreover, not only an earphone but an earphone of an overhead type may be configured by connecting earphones corresponding to both left and right ears by a headband. Further, the present invention can be applied not only to the earphones but also to headphones capable of attaching / detaching a cord. Further, the headphones and earphones of the present invention are not limited to home stereo reproduction or multi-channel surround reproduction, and can be applied to in-vehicle audio equipment and sound reproduction facilities such as movie theaters.

1, 1a Earphone 2 Housing 3 Speaker unit 4 Base member 5 Cord connection part
6 Earpiece 7 Cord 8 Plug 9 Cord member 10 Band member

Claims (9)

A speaker unit for electroacoustic converting sound signals into sound waves;
A cord having a plug portion for attaching a plug to at least one end thereof and supplying the audio signal to the speaker unit;
A housing having a cord connecting portion including a jack for attaching the speaker unit therein and removably connecting the plug of the cord;
A cylindrical elastic body having a predetermined length dimension and an inner diameter dimension, and an inner wall surface defining the inner diameter dimension by an elastic force generated by elastic deformation is the plug portion of the cord and the cord connection portion of the housing A band member that suppresses rotation and dropping of the cord with respect to the housing;
Earphone with The plug portion of the cord and the cord connection portion of the housing each have a substantially cylindrical outer shell that fits into a substantially cylindrical space defined by the inner wall surface of the band member, and before elastic deformation The inner diameter dimension of the band member is less than or equal to the diameter dimension of the outer shell,
The earphone according to claim 1. The inner diameter dimension of the band member before elastic deformation is equal to or larger than the diameter dimension of the cord member of the cord, and the band member does not grip both the plug portion of the cord and the cord connection portion of the housing. The band member can be moved on the cord so that the cord member penetrates the band member.
The earphone according to claim 2. When the band member does not hold both the plug portion of the cord and the cord connection portion of the housing, the band member is moved on the housing, and the cord connection portion penetrates the band member. Can be arranged to
The earphone according to claim 2. The cylindrical band member has chamfered corners between its end surface and the inner wall surface,
The earphone according to claim 1. The cylindrical band member includes a surface-treated portion that increases friction with a user's finger on an outer wall surface that defines an outer diameter .
The earphone according to claim 1.   The said band member which comprises the earphone in any one of Claim 1 to 6. A speaker unit for electroacoustic conversion of an audio signal into a sound wave; a cord having a plug portion for attaching a plug at least on one end thereof; and supplying the audio signal to the speaker unit; and attaching the speaker unit therein A housing having a cord connecting portion including a jack for connecting the plug of the cord so that the plug can be inserted and removed; and a cylindrical elastic body having a predetermined length dimension and an inner diameter dimension. Use of an earphone comprising: an inner wall surface that defines an inner diameter dimension is in contact with the plug portion of the cord and the cord connecting portion of the housing, and a band member that suppresses rotation and dropping of the cord with respect to the housing A method,
The cord member of the cord is passed through the band member and the band member is movably disposed on the cord; or the cord connecting portion of the housing is penetrated through the band member and the band member is A movable arrangement on the housing;
Inserting the plug of the cord into the jack of the housing;
Attaching the housing of the earphone to a predetermined position of the ear;
A step with shaping the cord into a desired shape, the plug for the inserted said jack to set the angle to be rotated to a desired angle,
The band member is moved from the cord member of the cord, or the band member is moved from the cord connecting portion of the housing, and the inner wall surface of the band member is connected to the plug portion of the cord and the housing. Fixing the cord so as to be in contact with the cord connecting portion and preventing the cord from rotating and dropping with respect to the housing;
How to use the earphone, including When the cylindrical band member includes a surface-treated portion that increases friction with a user's finger on an outer wall surface that defines an outer diameter , and when the band member is moved from the cord member of the cord, Alternatively, when the band member is moved from the cord connection portion of the housing, the finger of the user abuts on the surface treatment portion provided on the outer wall surface.
A method for using the earphone according to claim 8.