WO2013141554A1 - Dispositif formant écouteur - Google Patents

Dispositif formant écouteur Download PDF

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Publication number
WO2013141554A1
WO2013141554A1 PCT/KR2013/002211 KR2013002211W WO2013141554A1 WO 2013141554 A1 WO2013141554 A1 WO 2013141554A1 KR 2013002211 W KR2013002211 W KR 2013002211W WO 2013141554 A1 WO2013141554 A1 WO 2013141554A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening
terminal
speaker
fastening part
unit
Prior art date
Application number
PCT/KR2013/002211
Other languages
English (en)
Korean (ko)
Inventor
오택림
Original Assignee
Oh Taek Rim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oh Taek Rim filed Critical Oh Taek Rim
Publication of WO2013141554A1 publication Critical patent/WO2013141554A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type

Definitions

  • the present invention relates to an earphone device, and more particularly to an earphone device having a fastening portion for easy cable arrangement.
  • earphone devices are essential for portable audio equipment such as cassette tapes, CDs, and MP3 players.
  • portable audio equipment such as cassette tapes, CDs, and MP3 players.
  • an acoustic function is added to the smart phone, and thus, the smart phone also functions as an audio device, and in response thereto, an earphone device including a hands-free function has been developed to implement a call function.
  • the earphone device is used in a stable place such as a street or a train, and when used to pass through a crowded street or perform other actions, it is stopped and stored in a bag or pocket.
  • the user generally wraps up the earphone device on the portable audio device, and in this case, a certain portion may be bent continuously to cause disconnection.
  • the original function is a mobile phone function for sending a phone call or a text message, so the earphone device is often separated and stored separately.In this case, when the earphone device is pulled out again, the cables are tangled and twisted with each other. There are many cases of suffering.
  • an earphone device that forms a separate member that is slidable to a cable of the earphone device, and when the earphone device is not used, raises the sliding member and collects two speaker parts from each other, thereby developing an earphone device.
  • the earphone device according to the prior art has to form a separate member slidable to the cable of the earphone device, the manufacturing cost is increased and difficult to manufacture, there was a problem that the appearance is not neat.
  • the present invention is to provide a earphone device with a simple appearance by reducing the manufacturing cost, easy to manufacture, by simplifying the configuration of the earphone device for arranging the cable.
  • Earphone device is connected to one side of the first cable detachably fastened to the audio device, a terminal portion having a terminal fastening portion, and the second separated from the other side of the first cable two
  • the parts are characterized in that they are detachably fastened to each other.
  • the terminal fastening part, the first fastening part, and the second fastening part may be fastened by magnetic coupling with each other.
  • terminal fastening portion, the first fastening portion, and the second fastening portion may be fastened by a groove-protrusion coupling with each other.
  • the speaker unit may further include a speaker support unit supporting the speaker unit, wherein the first fastening unit and the second fastening unit are provided in the speaker support unit.
  • first speaker portion and the second speaker portion is characterized in that the fastening to face in opposite directions to each other.
  • the first fastening part and the second fastening part may be arranged in adjacent regions of the first speaker part and the second speaker part connected to the second cable, respectively.
  • the terminal fastening part may be detachably fastened to the speaker fastening part generated by the fastening of the first fastening part and the second fastening part.
  • first fastening portion and the second fastening portion is characterized in that the fastening with each other by the groove-protrusion or magnetic.
  • the terminal fastening part may be a terminal jack detachably fastened to the sound device.
  • the speaker fastening part and the terminal fastening part may be fastened to each other by a groove-protrusion.
  • a terminal unit is connected to one side of a first cable and is detachably fastened to a sound device and has a terminal jack at an end thereof; And a speaker unit connected to a second cable separated into two from the other side of the first cable, the speaker unit including a first speaker unit having a first fastening unit and a second speaker unit having a second fastening unit.
  • One of the fastening portion and the second fastening portion includes at least two protrusions and a semicircular groove provided between the protrusions, and the other includes at least two grooves and a semicircular groove provided between the grooves.
  • a speaker fastening part having a terminal insertion hole is formed by a semicircular groove formed in the first fastening part and the second fastening part, and the through hole of the speaker fastening part is formed.
  • the terminal jack of the terminal unit is inserted to provide an earphone device in which the first fastening part, the second fastening part and the terminal part are detachably coupled.
  • the first speaker portion and the second speaker portion are fastened to face in opposite directions to each other.
  • the terminal jack is inserted into and coupled to the through-hole by a snap-fit method, or the terminal portion is further provided with a terminal fastening portion having a protrusion, and the protrusion may be inserted into and coupled to the through-hole by a snap-fit method.
  • the configuration is simple, the manufacturing cost is reduced, the manufacturing is easy, and the appearance is neat. can do.
  • FIG. 1 is a perspective view of an earphone device according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of an earphone device in which a terminal fastening portion, a first fastening portion, and a second fastening portion of the earphone device shown in FIG. 1 are fastened.
  • FIG 3 is a perspective view of an earphone device according to a second embodiment of the present invention.
  • FIG. 4 is a perspective view of the earphone device in which the terminal fastening portion, the first fastening portion, and the second fastening portion of the earphone device shown in FIG. 3 are fastened.
  • FIG. 5 is a perspective view of an earphone device according to a third embodiment of the present invention.
  • FIG. 6 is a perspective view of an earphone device in which a terminal fastening portion, a first fastening portion, and a second fastening portion of the earphone device shown in FIG. 5 are fastened.
  • FIG. 7 is a perspective view of an earphone device according to a fourth embodiment of the present invention.
  • FIG. 8 is a perspective view of the earphone device in which the terminal fastening portion, the first fastening portion, and the second fastening portion of the earphone device shown in FIG. 7 are fastened.
  • FIG. 1 is a perspective view of an earphone device 100a according to a first embodiment of the present invention
  • FIG. 2 is a terminal fastening part 151a, a first fastening part 121a, of the earphone device 100a shown in FIG. And a earphone device 100a to which the second fastening part 131a is fastened.
  • the earphone device 100a according to the present embodiment will be described with reference to this.
  • the earphone device 100a includes a terminal part 150 including a terminal fastening part 151a, and a first fastening part 121a and a second fastening part ( And a speaker unit 110 having a 131a, and the terminal fastening unit 151a, the first fastening unit 121a, and the second fastening unit 131a are detachably fastened to each other so that the earphone device 100a
  • the cable 140 prevents entanglement.
  • the terminal unit 150 is connected to one side of the first cable 141 to connect the earphone device 100a and the acoustic device to each other.
  • the terminal unit 150 may be connected to one side of the first cable 141 and the other side may be connected to the terminal receiving unit of the sound device.
  • the terminal unit 150 may include a terminal jack 152.
  • the terminal jack 152 may be inserted into a terminal accommodating portion of the sound device to connect the first cable 141 and the sound device to each other.
  • the terminal jack 152 of the terminal unit 150 may include a step 153 and / or groove 154 formed on the outer circumferential surface, the step 153 or groove 154 is a terminal receiving portion of the sound equipment By snap-fit coupling, a predetermined coupling force may be provided between the terminal portion 150 and the terminal receiving portion.
  • the terminal unit 150 may include a conductive structure connecting the terminal jack 152 and the first cable 141 to each other, and an electrically non-conductive terminal housing 159 surrounding the terminal jack 152.
  • the terminal fastening part 151a may be provided in the terminal part 150 or protruded to the outside of the terminal part 150 as shown in FIG. 1, for example, in the inner or upper surface of the terminal housing 159. It may be provided.
  • the earphone device 100a according to the present embodiment may include a magnet as the terminal fastening portion 151a, and it is preferable to use a permanent magnet as the magnet for miniaturization of the earphone device 100a.
  • the magnetism of the magnet as the terminal fastening portion 151a is preferably such that it can be coupled to another magnet or metal without affecting the function of the earphone device 100a.
  • the first cable 141 extends from the branch line of the second cable 142, which is separated into two, to the terminal portion 150, and may include three to five coaxial lines therein.
  • the first cable 141 may be thicker than the second cable 142.
  • the speaker unit 110 is a member including a first speaker unit 120 and a second speaker unit 130 respectively connected from the other side of the second branched second cable 142, and the terminal fastening unit 151a and A first fastening portion 121a and a second fastening portion 131a are detachably fastened.
  • the first speaker portion 120 may be provided with a first fastening portion 121a and the second speaker portion 130 may be provided with a second fastening portion 131a, and more specifically, each speaker portion 110. ) May be provided in the speaker support 112.
  • any one or both of the first fastening portion 121a and the second fastening portion 131a may include a magnet to form magnetic coupling with each other, and accordingly, the first fastening portion 121a and the second fastening portion may be formed.
  • the part 131a may be fastened to each other detachably.
  • the first fastening part 121a and the second fastening part 131a may be formed of a metal having a property of attaching to the magnet without including a magnet, for example, iron. It is also possible.
  • the first fastening part 121a, the second fastening part 131a, and the terminal fastening part 151a are collected at one point, the first fastening part 121a and the first fastening part 121a and the first fastening part 121a may be formed due to the magnetism of the terminal fastening part 151a. This is because the two fastening portions 131a can also be fastened to each other.
  • the terminal fastening part 151a may be made of a metal having a property of adhering to the magnet. .
  • the first fastening portion 121a, the second fastening portion 131a, and the terminal fastening portion 151a includes a magnet, and the rest is made of a metal having a property of adhering to the magnet
  • the first fastening part 121a, the second fastening part 131a, and the terminal fastening part 151a are fastened to collect the speaker part 110 and the terminal part 150 into one place. It is possible to organize the 100a, thereby preventing the cable 140 from being tangled and twisted.
  • the configuration as described above simply collects one hand holding the speaker unit 110 and one hand holding the terminal unit 150 and the cable of the earphone device 100a. Since 140 can be easily organized, a user can be provided with convenience.
  • the fastening portion 121a, the second fastening portion 131a, and / or the terminal fastening portion 151a may be easily separated by two hands while providing a predetermined coupling force.
  • the magnet is formed of a curved surface
  • the mutual contact area may be small, so that the coupling force may be small. Therefore, the first fastening part 121a, the second fastening part 131a, and the terminal fastening part 151a may have a faceted surface. It is preferable to comprise so that it may have.
  • the first fastening part 121a and the second fastening part 131a may be provided inside the speaker support part 112, and the terminal fastening part 151a is a terminal.
  • the housing 159 may be provided.
  • the surface directly fastened is the surface of the speaker support part 112 and the surface of the terminal housing 159 provided in each speaker part 110, and thus the speaker support part 112 and the terminal housing. 159 may form a dodecahedron.
  • the cable ( 140 does not add a separate configuration, but because the speaker support portion 112 and the terminal housing 159 that is necessarily included in the earphone device (100a) is provided with each fastening portion (121a, 131a, 151a), a clean appearance as a whole Can be maintained and manufacturing costs can be reduced.
  • the shape of the speaker support 112 and the terminal housing 159 at this time is not limited to a rectangular parallelepiped, and a polygonal pillar such as a triangular pillar and a curved column such as a semi-circular pillar will be possible.
  • the first fastening part 121a and the second fastening part 131a are fastened to the terminal fastening part 151a at the fastened side, but the present invention is not limited thereto. Specifically, the first fastening part 121a and the terminal fastening part 151a are fastened first and then fastened with the second fastening part 131a at the side, or the second fastening part 131a and the terminal fastening part 151a. It is also possible to fasten first and then fasten with the first fastening portion 121a at its side.
  • the terminal fastening part 151a may be fastened therebetween.
  • the first speaker part 120 and the second speaker part 130 may be fastened in opposite directions by fastening the first fastening part 121a and the second fastening part 131a. To provide a space to which the unit 151a is to be fastened.
  • the second cable 142 is separated into two from the other side of the first cable 141, one side may be connected to the other side of the first cable 141, the other side may be connected to the speaker unit 110,
  • the first fastening part 121a and the second fastening part 131a may be adjacent to the first speaker part 120 and the second speaker part 130 connected to the other side of the second cable 142, respectively.
  • the first fastening part 121a and the second fastening part 131a mean that the second fastening part 121a and the second fastening part 131a are positioned adjacent to the other direction of the second cable 142.
  • the second cable 142 may include three to five coaxial lines therein.
  • the speaker unit 110 may convert an electrical signal sequentially transmitted through the terminal unit 150, the first cable 141, and the second cable 142 into a sound, and transmit the sound to a user's ear.
  • the first fastening part 121a and the second fastening part 131a are provided in the speaker support part 112, and the terminal fastening part 115a is provided in the terminal housing 159.
  • the present exemplary embodiment is not limited thereto, and the first fastening part 121a and the second fastening part 131a are provided outside the speaker support part 112 and the terminal fastening part 151a is a terminal. It may also include a case provided on the outside of the housing 159.
  • the speaker support 112 and the terminal housing 159 may be implemented in a cylinder or the like without having to form a faceted surface, and a portion where the respective fastening portions 121a, 131a, and 151a provided on the outside form a surface.
  • a portion where the respective fastening portions 121a, 131a, and 151a provided on the outside form a surface.
  • FIG. 3 is a perspective view of an earphone device 100b according to a second embodiment of the present invention
  • FIG. 4 is a terminal fastening part 151b, a first fastening part 121b, of the earphone device 100b shown in FIG. And a earphone device 100b to which the second fastening part 131b is fastened.
  • the earphone device 100b according to the present embodiment will be described with reference to this.
  • the same or corresponding components are referred to by the same reference numerals, and descriptions overlapping with the first embodiment will be omitted.
  • the fastening of the terminal fastening part 151b, the first fastening part 121b, and the second fastening part 131b is groove- It is characterized by the combination of the projections.
  • At least one of the fastening may be by groove-protrusion coupling.
  • the first fastening portion 121b is implemented as the second groove portion 122 and the second fastening portion 131b is the first groove portion 132 and the second protrusion 133.
  • the terminal fastening part 151b may be implemented as the first protrusion 155.
  • the first protrusion 155 of the terminal fastening portion 151b is fastened to the first groove portion 132 of the second fastening portion 131b as shown in FIG. 4, and the first protrusion 155 of the second fastening portion 131b is closed.
  • the second protrusion 133 may be fastened to the second groove 122 of the first fastening part 121b.
  • the groove-protrusion coupling uses a snap-fit method, while providing a coupling force of a predetermined or more coupling force between the first coupling portion 121b, the second coupling portion 131b, and the terminal coupling portion 151b, When a force is applied, the separation can be facilitated.
  • the grooves 122 and 132 are shown to penetrate the fastening parts 121b and 131b in FIGS. 3 and 4, the protrusions 133 and 155 may be excavated to a predetermined depth so that the protrusions 133 and 155 may be fixed even if not. It is possible to implement the invention.
  • the first fastening part 121b is detachably fastened to the terminal fastening part 151b and the second fastening part 131b is detachably fastened to the first fastening part 121b.
  • both the first fastening part 121b and the second fastening part 131b may be detachably fastened to the terminal fastening part 151b.
  • the present embodiment can be combined with the magnetic coupling method as in the first embodiment, it is possible to derive a stronger clamping force.
  • At least one of the coupling may be implemented as a groove-protrusion coupling, and the rest may be implemented as a magnetic coupling.
  • the first fastening part 121b and the second fastening part 131b are provided as the groove part or the protrusion part in the speaker support part 112, and the terminal fastening part 151b is the groove part or the terminal part 159 in the housing.
  • the bar is provided as a protrusion, so that the speaker support 112 and the terminal housing 159, which are essentially included in the earphone device 100b, simply need to form protrusions or grooves, and thus are easy to manufacture, and additional large configurations are added. It can be neat in appearance.
  • FIG. 5 is a perspective view of an earphone device 100c according to a third embodiment of the present invention
  • FIG. 6 is a terminal fastening part, a first fastening part, and a second fastening part of the earphone device 100c shown in FIG. 5.
  • the earphone device 100c according to the present embodiment will be described with reference to this.
  • the same or corresponding elements are referred to by the same reference numerals, and descriptions overlapping with the first and second embodiments will be omitted.
  • the first speaker unit 120 includes the first fastening unit 121c and the second speaker unit 130 includes the second unit.
  • the fastening part 131c may be provided, and the first fastening part 121c and the second fastening part 131c may be fastened by magnetic coupling.
  • the speaker fastening part 111c may be generated as shown in FIG. 6 by fastening the first fastening part 121c and the second fastening part 131c, and the terminal fastening part 151c of the terminal part 150. ) May be detachably fastened to the generated speaker fastening part 111c.
  • the speaker fastening part 111c may be generated as shown in FIG. 6.
  • the generated speaker fastening part 111c is a third groove part which is drawn into the first groove by fastening the first fastening part 121c having one side semicircular groove and the second fastening part 131c having the other semicircular groove.
  • the terminal fastening part 151c of the terminal part 150 implemented as the third protrusion part 156 may be fastened to collect the speaker part 110 and the terminal part 150 to one point.
  • the cable 140 of the device 100c can be arranged.
  • the first fastening part 121c, the second fastening part 131c, and the terminal fastening part 151c are separated from the speaker support part 112 and the terminal housing 159 as separate members, respectively.
  • the first fastening part 121c and the second fastening part 131c are provided inside the speaker support part 112 as in the first and second embodiments, and the terminal fastening part 151c is provided.
  • the speaker fastening part 111c may be embodied as the third groove part 113, it may be embodied as a protrusion part, and the terminal fastening part 151c may be embodied as the groove part.
  • FIG. 7 is a perspective view of an earphone device 100d according to a fourth embodiment of the present invention
  • FIG. 8 is a terminal fastening part, a first fastening part, and a second fastening part of the earphone device 100d shown in FIG. 7.
  • the earphone device 100d according to the present embodiment will be described with reference to this.
  • the same or corresponding elements are referred to by the same reference numerals, and descriptions overlapping with the first to third embodiments will be omitted.
  • the first fastening part 121d and the second fastening part 131d are fastened by the groove-protrusion coupling, and the speaker fastening part.
  • the speaker 111d is generated by the fastening of the first fastening part 121d and the second fastening part 131d, and the terminal jack 152 corresponding to the terminal fastening part 151d of the terminal part 150 is generated. It is characterized in that the fastening detachable to the fastening portion (111d).
  • the speaker fastening part 111d as shown in FIG. 8 is generated.
  • the fourth fastening part 121d may include the fourth groove part 125, and the fourth fastening part 135 may be included in the fourth fastening part 121d.
  • Is inserted into the fourth groove 125 and the fifth groove 114 may be derived as the speaker coupling portion 111d.
  • the terminal jack 152 may be directly inserted into the fifth groove 114 in a snap-fit manner to achieve the fastening of the speaker fastening portion 111d and the terminal fastening portion 151d.
  • the terminal jack 152 is provided with a step 153 and the groove 154, it may be more suitable to use the snap-fit method by the groove-protrusion coupling.
  • At least two protrusions are provided on one of the first fastening part 121d and the second fastening part 131d, and at least two grooves are provided on the other, and both of them are formed by the groove-protrusion coupling.
  • the speaker fastening portion 111d may be formed.
  • the first fastening portion 121d and the second fastening portion 131d form a speaker fastening portion 111d for forming a groove-protrusion coupling, and a separate terminal insertion hole is formed at the center of the speaker fastening portion 111d.
  • a semi-circular groove may be formed between each of the protrusions of the first fastening portion 121d and the second fastening portion 121d and the second fastening portion 131d or between the grooves so as to form the terminal insertion hole. . Therefore, the terminal unit may be inserted into the through hole provided in the speaker fastening unit 111d as it is.
  • the first speaker portion and the second speaker portion may be fastened so as to face in opposite directions to each other, and the terminal portion may further include an additional terminal fastening portion having protrusions, and the protrusions snap-fit to the through hole. It is of course also possible to insert and combine in a manner.
  • first speaker portion 121a, 121b, 121c, 121d first fastening portion
  • terminal portion 151a, 151b, 151c, 151d terminal fastening portion

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)

Abstract

La présente invention se rapporte à un dispositif formant écouteur comprenant : une section terminale, qui est connectée à l'un des côtés d'un premier câble, de sorte à pouvoir être couplée de façon détachable à un dispositif audio, la section terminale comprenant une partie de couplage de section terminale ; et une section de haut-parleur, qui comprend un premier haut-parleur ayant une première partie de couplage, et un second haut-parleur ayant une seconde partie de couplage. Les premier et second haut-parleurs sont connectés respectivement à deux seconds câbles qui se ramifient depuis l'autre côté du premier câble ; et la partie de couplage de section terminale, la première partie de couplage, et la seconde partie de couplage sont couplées les unes aux autres de façon détachable. Comme la partie de couplage de section terminale, la première partie de couplage, et la seconde partie de couplage sont couplées les unes aux autres de façon détachable, un utilisateur peut arranger facilement un câble d'écouteur.
PCT/KR2013/002211 2012-03-23 2013-03-19 Dispositif formant écouteur WO2013141554A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2012-0002337 2012-03-23
KR2020120002337U KR200470483Y1 (ko) 2012-03-23 2012-03-23 이어폰 장치

Publications (1)

Publication Number Publication Date
WO2013141554A1 true WO2013141554A1 (fr) 2013-09-26

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Application Number Title Priority Date Filing Date
PCT/KR2013/002211 WO2013141554A1 (fr) 2012-03-23 2013-03-19 Dispositif formant écouteur

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WO (1) WO2013141554A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102322505B1 (ko) * 2020-11-30 2021-11-05 대진대학교 산학협력단 케이블 꼬임 방지 이어폰

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000018523U (ko) * 1999-03-22 2000-10-16 김종운 선 엉킴 방지장치가 구비된 이어폰
KR200225471Y1 (ko) * 2000-12-29 2001-06-01 주식회사신와 이어폰 고정구조
KR200272819Y1 (ko) * 1998-12-19 2002-08-27 김무근 이어폰전선엉킴방지기능을갖는결합구조

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200272819Y1 (ko) * 1998-12-19 2002-08-27 김무근 이어폰전선엉킴방지기능을갖는결합구조
KR20000018523U (ko) * 1999-03-22 2000-10-16 김종운 선 엉킴 방지장치가 구비된 이어폰
KR200225471Y1 (ko) * 2000-12-29 2001-06-01 주식회사신와 이어폰 고정구조

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KR20130005731U (ko) 2013-10-02

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