Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
  • F21V1/12—Composite shades, i.e. shades being made of distinct parts
• • 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
  • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
  • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
  • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
  • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
  • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
  • C11C5/00—Candles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
  • F21V1/14—Covers for frames; Frameless shades
  • F21V1/143—The cover being attached to a supporting lampshade frame
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V35/00—Candle holders
• • 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
• • 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
  • H04R1/1058—Manufacture or assembly
  • H04R1/1075—Mountings of transducers in earphones or headphones
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
  • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R5/00—Stereophonic arrangements
  • H04R5/033—Headphones for stereophonic communication

Definitions

• the present invention relates to a sound wave opening and shutting type case of headphones, and more particularly, to a sound wave opening and shutting type case of headphones which can selectively open or shut a sound wave generated by a speaker unit (or a back sound generated from a back surface of the speaker unit) and adjust a degree of opening thereof.
• a reverberation space is formed where a reverberation phenomenon is formed as in a bath room before a sound wave generated by a speaker unit arrives at an ear of a hearer.
• the reverberation space improves a sound field (staging) and softens mixture of sounds so as to make the hearer comfortable and provide a sense of being in a large space where musical performance is made.
• the conventional headphones can be divided into sealed type headphones in which a back sound generated from a back surface of a speaker unit is completely sealed by being encompassed by an enclosure, and open type headphones in which the back sound generated from a back surface of a speaker unit is partially open by an enclosure where holes are formed.
• the sealed type headphones and the open type headphones have both merits and demerits.
• the sealed type headphones can reproduce a so-called hard sound by removing before-and-after vibrations of a diaphragm of a speaker using air pressure in a sealed space in a read side of the speaker, in particular, removing unpleasant booming (unnecessary vibrations of a speaker) in a lower frequency range.
• the speaker diaphragm obtusely reacts to an electric signal by excessive interference by the sealed air pressure so that resolution of sound is lowered and dynamic sound cannot be reproduced.
• the speaker diaphragm is exposed to the air and the before-and-after vibrations of the speaker is not prevented by the air, the speaker sensitively reacts to an electric signal so that a sound resolution is improved and a dynamic sound can be reproduced.
• unpleasant booming is generated in a low frequency range by inertia of the speaker diaphragm so that sound is not tight.
• the conventional headphones are separately manufactured into the open type and the sealed type, a user cannot select the open type or the sealed type or adjust a degree of opening thereof according to personal taste or the type of a reproduced source.
• a back reflection sound which is generated by a speaker unit and reflected by a back side of an ear inside the headphone is generated because the ear of a hearer is completed encompassed.
• Sound heard in front of a person sounds pleasant, but sound heard in rear of the person is unstable.
• the focusing of the front sound is clear, but the back sound sounds unclear.
• the back reflection sound of the headphones generates a so-called headphone effect by which sound is heard in all directions. Consequently, the focusing of sound is unclear.
• a sound image is not formed in the front side, sound is unclear.
• the sound heard in all directions, in particular, from the back side makes a hearer uncomfortable and tired.
• the above problems are critical and peculiar to the headphones.
• the present invention provides a sound wave opening and shutting case of headphones which can open a reverberation space and adjust a degree of opening thereof so that an amount of reverberation is freely adjusted by a hearer according to the taste of the hearer or the type of a music source and thus an optimal sense of a sound field is formed in any case.
• the present invention provides a sound wave opening and shutting case of headphones which can selectively open or shut an enclosure encompassing a back sound generated from a back side of a speaker unit and adjust a degree of opening thereof so that a hearer freely adjust a property of sound quality according to the taste of the hearer or the type of a music source and thus the hearer enjoy an optimal sound quality in any case.
• the present invention provides a sound wave opening and shutting case of headphones which can remove a back reflection sound of the headphones to form a sound image in front of a hearer so that a more clear sound image and a sound field and focusing as if music is played just in front of the hearer are achieved and thus the hearer is not tired when using the headphones for a long time as if a general speaker is used.
• a sound wave opening and shutting type case of headphones having a reverberation space of a sound wave generated from a front surface of a speaker unit
• the case comprises a reverberation forming member which is formed between the speaker unit and an ear of a hearer, has a reverberation space formed inside, encompasses the speaker unit to separate the reverberation space from an outside, and has a plurality of through holes formed at one side thereof so that the reverberation space is selectively connected and open to the outside, and an opening and shutting unit which determines opening or shutting of the reverberation space by selectively shielding the through holes of the reverberation forming member.
• the reverberation forming member is a ring type protruding plate formed on a lower surface of an enclosure encompassing the speaker unit and has a plurality of through holes formed in a circumferential direction
• the opening and shutting unit is a ring type sliding plate which is inserted around an outer circumferential surface of the protruding plate and capable of twist sliding with respect to the protruding plate and has an opening formed at one side thereof having a shape corresponding to the through holes of the reverberation forming member so that a degree of opening of the through holes is determined according to an angle of twist with respect to the protruding plate.
• the reverberation forming member is a ring type protruding plate formed on a lower surface of an enclosure encompassing the speaker unit and has a plurality of through slits formed in a vertical direction
• the opening and shutting unit is a ring type up/down sliding shield plate which is inserted around an outer circumferential surface of the protruding plate and capable of up/down sliding with respect to the protruding plate so that, when the reverberation forming member ascends, the through slits are open and, when the reverberation forming member descends, the through slits are shut and sealed.
• the reverberation forming member is a ring type protruding plate formed on a lower surface of an enclosure encompassing the speaker unit and has a spiral male screw protrusion formed thereon such that a plurality of through holes are spirally formed on a circumferential surface between the male screw protrusions
• the opening and shutting unit is a ring type screw sliding shield plate which is screw coupled to an outer circumferential surface of the protruding plate and capable of screw rotating back and forth with respect to the protruding plate so that, when the reverberation forming member screws forward, the through holes are open and, when the reverberation forming member screws backward, the through holes are shut and sealed.
• a sound wave opening and shutting type case of headphones having a reverberation space of a back sound generated from a back surface of a speaker unit
• the case comprises an enclosure which encompasses the back surface of the speaker unit to separate the reverberation space of the back sound generated from the back surface of the speaker unit from an outside and has a through hole formed on one surface thereof so that the reverberation space is selectively connected and open to the outside; and an opening and shutting unit which determines opening or shutting of the reverberation space by selectively shielding the through hole of the enclosure.
• the size of a plurality of through holes of the reverberation forming member increases toward the back side of the reverberation forming member so that the through holes are slightly inclined toward a front side of the reverberation forming member, and the through holes are always open without an additional opening and shutting unit or an opening and shutting unit such as a detachable plug or a hinge apparatus which is sliding open or shut is installed so that the through holes are selectively open.
• FIG. 1 is a partially side sectional view illustrating a sound wave opening and shutting type case of headphones according to an embodiment of the present invention
• FIG. 2 is a perspective view illustrating the sound wave opening and shutting type case of headphones of FIG. 1 ;
• FIGS. 3 and 4 are partially side sectional views illustrating examples of a through hole shown in FIG. 1 ;
• FIG. 5 is a partially side sectional view illustrating a sound wave opening and shutting type case of headphones according to another embodiment of the present invention;
• FIG. 6 is a partially side sectional view illustrating a sound wave opening and shutting type case of headphones according to yet another embodiment of the present invention.
• FIGS. 7 through 10 are partially side sectional views illustrating sound wave opening and shutting type cases of headphones according to various embodiments of the present invention.
• FIG. 11 is a partially sectional view illustrating a sound wave opening and shutting type case of headphones according to still yet another embodiment of the present invention.
• FIG. 12 is a partially sectional view illustrating another example of the sound wave opening and shutting type case of headphones shown in FIG. 11.
• a sound wave opening and shutting type case 10 of headphones has a reverberation space of a sound wave generated from the front side of a speaker unit 1 and includes a reverberation forming member 11 and an opening and shutting unit.
• the reverberation forming unit 11 is formed between the speaker unit 1 and an ear of a hearer and encompasses the speaker unit 1 to separate the reverberation space from the outside.
• the reverberation space is formed inside the reverberation forming member 11.
• a plurality of through holes 13 are formed at one side of the reverberation forming member 11 so that the reverberation space is selectively connected and open to the outside.
• the reverberation forming unit 11 is a ring type protruding plate 12 formed on a lower surface of an enclosure 14 encompassing the speaker unit 1 and has the through holes 13 formed in a circumferential direction.
• the through holes 13 of the protruding plate 12 can be manufactured in a various shapes, in the present embodiment, the through holes 13 are manufactured as a plurality of circular holes formed in parallel at a predetermined interval so that a degree of opening of the reverberation space can be adjusted.
• the opening and shutting unit determines opening or sealing of the reverberation space by selectively shielding the through holes 13 of the reverberation forming member 11.
• the opening and shutting unit is inserted around an outer circumferential surface of the protruding plate 12 and capable of twist sliding with respect to the protruding plate 12.
• the opening and shutting unit is a ring type sliding plate 15 having an opening 16 formed at one side thereof having a shape corresponding to the through holes 13 of the reverberation forming member 11 so that a degree of opening of the through holes 13 is determined according to an angle of twist with respect to the protruding plate 12.
• the sliding plate 15 may be formed together with a cushion 2 formed at a portion where it directly contacts the ear of a hearer, for a sense of wearing.
• the opening 16 of the sliding plate 15 may be a rectangular slit in a circumferential direction so as to adjust the number of the through holes 13 to be opened.
• the sliding plate 15 is twist slid with respect to the enclosure 14 so that the opening 16 and the through holes 13 are deviated from each other. Accordingly, as the through holes 13 formed on the protruding plate 12 are shielded by the sliding plate 15, the sound wave in the reverberation space is not exhausted. If the hearer desired to fee a small amount of reverberation, the sliding plate 15 is twist slid so that the opening 16 matches the through holes 13. Accordingly, as the through holes 13 formed on the protruding plate 12 are partially open so that the sound wave can be heard. In this case, a degree of reverberation can be adjusted by adjusting the number of the open through holes by adjusting a degree of the deviation between the opening 16 and the through holes 13.
• the through holes 13 of the protruding plate 12 do not need to be circular holes.
• the through holes 13 may be rectangular slits lengthy in the circumferential direction which narrow or widen from one end to the other end so that a degree of opening of the reverberation space can be adjusted.
• the through holes 13 may be flat rectangular slits as shown in FIG. 4 or other various shapes may be adopted.
• the reverberation forming member 1 1 and the opening and shutting unit according to the present invention can be formed in various ways.
• the reverberation forming member 11 is a ring type protruding plate 17 formed on a lower surface of the enclosure 14 encompassing the speaker unit 1 and having a plurality of through slits 18 in a vertical direction.
• the opening and shutting unit may be a ring type up/down sliding shield plate 19 inserted around an outer circumferential surface of the protruding plate 17 and capable of sliding up and down. Accordingly, when the reverberation forming member 1 1 ascends, the through slits 18 are open. When the reverberation forming member 11 descends, the through slits 18 are shut.
• An additional cushion 2 is installed on an outer circumferential surface of the up/down sliding shield plate 19 to improve a user's sense of wearing.
• the reverberation space can be open by ascending the protruding plate 17 with respect to the sliding shield plate 19 to expose the through silts 18 and shut by descending the protruding plate 17 to shield the through slits 18, so that a degree of reverberation of sound in the reverberation space can be adjusted.
• the reverberation forming member 11 is a ring type protruding plate 20 which is formed on a lower surface of the enclosure 14 encompassing the speaker unit 1.
• a spiral male screw protrusion 21 is formed on the protruding plate 20.
• a plurality of through holes 22 are formed on a circumferential surface of the protruding plate 20 between the male screw protrusion 21 in a spiral direction.
• the opening and shutting unit is a ring type screw sliding shield plate 23 which is screw coupled to the outer circumferential surface of the protruding plate 20 and capable of screw rotating back and forth with respect to the protruding plate 20.
• the reverberation space can be open by screwing forward the protruding plate 20 with respect to the screw sliding shield plate 23 to expose the through hole 22 and shut by screwing backward the protruding plate 20 to shield the through holes 22 to adjust the number of the open through holes 22, so that a degree of reverberation of sound in the reverberation space can be adjusted.
• the type and shape of the reverberation forming member 1 1 and the opening and shutting unit can be corrected and modified by those skilled in the art within a range of the technical concept of the present invention.
• a case 30 of headphones having a reverberation space of a back sound generated from the back surface of the speaker unit includes an enclosure 31 and an opening and shutting unit.
• the enclosure 31 is formed to encompass the back surface of the speaker unit 1 to separate the reverberation space of the back sound generated from the back surface of the speaker unit 1 from the outside.
• a plurality of through holes 32 are formed at one surface of the enclosure 31 so that the reverberation space is selectively connected to the outside to be open.
• the opening and shutting unit determines whether to open or shut the reverberation space by selectively shielding the through holes 32 of the enclosure 31.
• the enclosure 31 may be a sliding dome 33 encompassing the back surface of the speaker unit 1.
• the opening and shutting unit is attached to the enclosure 31 and capable of twist sliding with the enclosure 31.
• An opening 34 is formed at one side of the sliding dome 33 to have a shape corresponding to the through holes 32 of the enclosure 31 , so that a degree of opening of the through holes 32 is determined according to a twist angle with respect to the enclosure 31.
• the through holes 32 are all shut to make the headphones seal type headphones to prevent booming and produce a solid sound.
• the headphones are changed to open type headphones to increase resolution so that dynamic sound can be selectively enjoyed. Also, by adjusting a degree of opening of the through holes 32, an optimal sound most suitable for one's taste and a musical source.
• the enclosure 31 may be a up/down sliding plug 37 which encompasses the back surface of the speaker unit 1 and has a dome shape having an opening 35 formed at one side thereof.
• the opening and shutting unit is inserted in the opening 35 of the enclosure 31 and capable of sliding up and down.
• a plurality of through slits 36 are open.
• the through slits 36 are shut and sealed.
• the enclosure 31 may be a screw plug 40 moving back and forth which encompasses the back surface of the speaker unit 1 and has a dome shape having an opening 35 formed at one side thereof.
• the opening and shutting unit is inserted in the opening 35 of the enclosure 31 and capable of screw rotating back and forth.
• the type and shape of the reverberation forming member 1 1 and the opening and shutting unit can be corrected and modified by those skilled in the art within a range of the technical concept of the present invention.
• a sound wave open and shutting type case of headphones may be one which can be open at a back side of an ear of a user wearing the headphones.
• the size of a plurality of through holes 13 of the reverberation forming member 1 1 increases toward the back side of the reverberation forming member 11 so that the through holes 13 are slightly inclined toward the front side of the reverberation forming member 11.
• the through holes 13 may be formed along a back circumferential surface having a semicircular shape parallel to one another.
• the through holes are always open without an additional opening and shutting unit or, as shown in FIG. 11 , a detachable plug 100 sealing the through holes 13 can be installed.
• a hearer can selectively exhaust the unpleasant back reflection sound to the outside by installing or detaching the plug 100 so that a clearer and convenient sound image and a sound field effect can be obtained.
• a hinge is provided at one side and a hinge apparatus is installed so that the through holes 13 are sliding open and shut.
• the through holes 13 can be selectively open or shut.
• a multi-channel headphones are available by installing a front speaker unit (F), a center speaker unit (C), and a rear speaker unit R.
• F front speaker unit
• C center speaker unit
• R rear speaker unit
• multi-channel speaker units such as 5.1 channels or 6.1 channels can be separately or integrally applied.
• the sound wave opening and shutting case of headphones can open a reverberation space and adjust a degree of opening thereof so that an amount of reverberation is freely adjusted by a hearer according to the taste of the hearer or the type of a music source and thus an optimal sense of a sound field is formed in any case.
• an enclosure encompassing a back sound generated from a back side of a speaker unit is selectively open or shut and a degree of opening thereof is adjusted so that a hearer can freely adjust a property of sound quality according to the taste of the hearer or the type of a music source and thus the hearer enjoy an optimal sound quality in any case.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Life Sciences & Earth Sciences (AREA)
• Organic Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Otolaryngology (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Headphones And Earphones (AREA)

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Publications (1)

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ID=33157276

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Cited By (7)

Families Citing this family (12)

Citations (4)

• 2003
  • 2003-04-09 KR KR10-2003-0022211A patent/KR100496909B1/ko not_active IP Right Cessation
• 2004
  • 2004-04-08 WO PCT/KR2004/000819 patent/WO2004091253A1/en active Application Filing

Patent Citations (4)

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