DK180279B1 - A headphone with a headband guiding mechanism - Google Patents

A headphone with a headband guiding mechanism Download PDF

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Publication number
DK180279B1
DK180279B1 DKPA201900011A DKPA201900011A DK180279B1 DK 180279 B1 DK180279 B1 DK 180279B1 DK PA201900011 A DKPA201900011 A DK PA201900011A DK PA201900011 A DKPA201900011 A DK PA201900011A DK 180279 B1 DK180279 B1 DK 180279B1
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DK
Denmark
Prior art keywords
rib
groove
headband
headphone
projection
Prior art date
Application number
DKPA201900011A
Other languages
Danish (da)
Inventor
Lou Andy
Schenstrøm Stefansen Mads
Su Libra
Zhang Silas
Original Assignee
Gn Audio As
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 Gn Audio As filed Critical Gn Audio As
Priority to EP19209480.3A priority Critical patent/EP3675521A1/en
Priority to US16/717,464 priority patent/US10979798B2/en
Priority to CN201911338670.3A priority patent/CN111385692B/en
Publication of DK201900011A1 publication Critical patent/DK201900011A1/en
Application granted granted Critical
Publication of DK180279B1 publication Critical patent/DK180279B1/en

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Classifications

    • 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
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests
    • 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

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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

A headphone (1) comprising a first earphone (2) and a headband (3) to be arranged around the head of a user. The headband (3) comprises a first headband part (4) and a second headband part (5), that are telescopically connected, so that the length of the headband (3) can be adjusted in a longitudinal direction (Y). The first headband part (4) comprises an inner wall (9) with a protruding longitudinal first rib (8), which first rib (8) has a first rib sidewall (35) with a first rib protrusion (33) and a second opposite rib sidewall (36) with a second rib protrusion (34). The second headband part (5) comprises an outer wall (7) with a first longitudinal groove (6), which first groove (6) has first groove sidewall (20) with a first groove protrusion (22) and a second opposite groove sidewall (21) with a second groove protrusion (23). The first rib (8) is received in the first groove (6), and the first and second rib protrusions (33, 34) and the first and second groove protrusions (22, 23) defines small welldefined contact areas between the rib sidewalls (35, 36) and the groove sidewalls (20, 21).

Description

DK 180279 B1 1 Title: A headphone with a headband guiding mechanism Technical Field The invention relates to headphone comprising a first earphone and a headband to be arranged around the head of a user, wherein the headband comprises a first headband partand a second headband part, that are telescopically connected, so that the length of the headband can be adjusted in a longitudinal direction.
Background Art
Headphones with headbands are normally adjustable in way, where the length of the headband can be adjusted in order to adapt the headphone to the size of the user’s head.
Duo headphones comprise two earphones, which are interconnected by the headband.
Monaural headphones comprise just one earphone at one end of the headband and an abutment device at the other end of the headband.
The length adjustability mechanism ofthe headband can be carried out in many ways.
The object of the invention is to provide a new and simple mechanical length adjustability mechanism.
CN 203675282 U describes a headphone comprising a first earphone and a headband to be arranged around the head of a user, wherein the headband comprises a first headband partand a second headband part, that are telescopically connected, so that the length of the headband can be adjusted in a longitudinal direction, see the figures.
Disclosure of Invention The headphone according to the invention characterized in that the first headband partcomprises an inner wall with a protruding longitudinal first rib, which first rib has a first rib sidewall with a first rib protrusion and a second opposite rib sidewall with a second rib protrusion, and wherein the second headband part comprises an outer wall with a first longitudinal groove, which first groove has first groove sidewall with a first groove protrusion and a second opposite groove sidewall with a second groove protrusion, andwherein the first rib is received in the first groove, and wherein the first and second rib
DK 180279 B1 2 protrusions and the first and second groove protrusions defines small well-defined contact areas between the rib sidewalls and the groove sidewalls. With such sliding mechanism, it is possible to obtain a telescopic movement with very little play, which gives a good feeling of quality for the user.
According to an embodiment, the inner wall has a protruding longitudinal second rib, which second rib has a first rib sidewall with a first rib protrusion and a second opposite rib sidewall with a second rib protrusion, and wherein the outer wall has a second longitudinal groove with a first groove sidewall with a first groove protrusion and a second opposite — groove sidewall with a second groove protrusion, and wherein the second rib is received in the second groove, wherein the first and second rib protrusions and the first and second groove protrusions defines small well-defined contact areas between the rib sidewalls and the groove sidewalls.
According to an embodiment, the first groove and the second groove are provided on opposite sides of the second headband part. According to an embodiment, the second headband part comprises a bottom face facing the users head when the headphone is worn, a top face opposite the bottom face, and two side — faces connecting the bottom face and the top face, wherein the first and second grooves are provided in the two side faces. According to an embodiment, the first headband part comprises a first end and a second end, wherein the second headband part is received in the first end, and wherein the first rib andthe second rib has a first end part, which is located at the first end. According to an embodiment, the first and second grooves have a first end and where the first groove protrusion is arranged at first distance from the first end, and where the second protrusion is arranged at a second distance from the first end.
DK 180279 B1 3 According to an embodiment, a knob is arranged at the first end of the first and second ribs, which knob defines the first and second rib protrusions. According to an embodiment, a recession is provided in the second groove sidewall opposite the first groove protrusion, which recession is adapted to let the knob pass the first protrusion during initial assembly of the first headband part and the second headband part. According to an embodiment, the rib(s) and the sidewalls of the grooves are made of moulded plastics.
According to an embodiment the groove(s) and rib(s) are curved. If the ribs and grooves were not provided with the well-defined four contact areas, it would require a mechanism with a large play due to production tolerances, especially when moulding plastics.
— Brief Description of the Drawings The invention is explained in detail below with reference to the drawing illustrating a preferred embodiment of the invention and in which Fig. 1 is a perspective view of a headset according to the invention, Fig 2. is a top-part of a second headband part, Fig. 3. is a bottom-part of the second headband part, Fig. 4 is a part of a first headband part, Fig. 5 is a cross-sectional view through a headband sliding mechanism between the first and second headband parts in a first telescopic position, Fig. 6 is a cross-sectional view through the headband sliding mechanism between the first and second headband parts in a second telescopic position, Fig. 7 is a schematic view of the sliding mechanism in a third telescopic position, and Fig. 8 is a schematic view of the sliding mechanism in the second telescopic position.
DK 180279 B1 4 Modes for Carrying out the Invention Fig. 1 is a perspective view of a headset 1 according to the invention.
The headphone 1 comprises a headband 3 interconnecting a first earphone 2 and a second earphone 28. The headband 3 comprises a first headband part 4, a second headband part 5 and a third headband part 27. The second and third headband parts 5, 27 are telescopically received in each end 15, 16 of the first headband part 4. As the sliding mechanism between the first headband part 4 and each of the second and third headband parts 5, 27 are similar, only the sliding mechanism between the first and second headband parts 4, 5 will be described in the — following.
Fig 2. is a top-part 24 of the second headband part 5. Fig. 3. is a bottom-part 25 of the second headband part 5. They are plastic parts, which are snapped together by means of snapping members 17. When snapped together, the second headband part 5 comprises an outer wall 7 with a bottom face 10, a top face 11 and two side faces 12, 13. Each side face 12, 13 comprises a longitudinal groove 6 with a first end 14, a bottom wall 19, a lower first side wall 20 and an upper second sidewall 21. The lower side wall 20 has a first groove protrusion 22 at a first distance from the first end 14. The upper side wall 21 has a second groove protrusion 23 at a second distance from the first end 14. The upper side wall 22 also has a recession 26 opposite the first groove protrusion 22. In assembled condition the left end of the second headband part 5 is attached to the first earphone 2. The right end of the second headband part is received in the first headband part 4 in assembled condition.
At the right end the top-part 24 there are two cantilevers 31 with a recession 32. The recession 32 is for receiving a friction element of silicone rubber or the like.
Also, the bottom part 25 has —oatthe right end a cantilever 31 for receiving a friction element.
In assembled state the cantilevers are bended and presses the friction elements against the inner wall 9 of the first headband part 4. Fig. 4 is a part of a first headband part 4. The first headband part 4 has an open end 15, which can receive the second headband part 5. An internal wall 9 of the first headband part
DK 180279 B1 4 comprise two opposite ribs 8, 8b with a knob 18 at arranged at the end. The knob 18 has a thickness which is slightly smaller than the distance between the side walls 20, 21 of the grooves 6, 6b. 5 Fig. 5is a cross-sectional view through a sliding mechanism between the first and second headband parts 4, 5 in a first telescopic position. In this position the knob 18 is positioned at the first end 14 of the groove 6. The first rib 8 comprises an upper first rib sidewall 35 and a lower second rib sidewall 36. The knob 18 provides a first rib protrusion 33 of the first rib sidewall 35 and a second rib protrusion 34 of the second rib sidewall 36. The rib 6 also abuts the first protrusion 22 and second protrusion 23. Thus, the rib 6 is guided by four small delimited contact areas: A first contact area A between the first rib protrusion 33 and the second groove sidewall 21, a second contact area B between the second rib protrusion 34 and the first rib sidewall 20, a third contact area C between the second groove protrusion 23 and the first rib sidewall 35 and a fourth contact area D between the first groove protrusion 22 and the second rib sidewall 36. In practice, often only two of the four contact areas are in contact at the same time due to bending forces acting on the headband. Thus, contact areas A+ Dor B + C are “active” simultaneously. By “active” is meant, that the “active” contact areas are transferring the forces between the rib and groove. It is possible to dimension the parts, so that all contact areas are in touch simultaneously, but this may not be advantageous, as production tolerances and wear make it difficult to do that. However, the four contact areas are well-defined and being the only possible contact areas of the groove/rib structure. With a curved guiding structure like this, there is a high risk, that production tolerances may cause the rib to be wedged in the groove, which may require the user to use extraordinary forces to extend or shorten the headband 3. In the position shown infig. 5, the second headband part 5 is slid as long as possible into the first headband part 4. Fig. 6 shows the first and second headband parts 4, 5 in a second telescopic position. Here the second headband part 5 is retracted as long as possible out from the first headband part
4. Here the contact areas A and B is much closer to the contact areas Cand D. The rib 8 is slightly wedge-shaped, so that it widens slightly from right to left. Thus, the play is smaller in
DK 180279 B1 6 the second position, whereby the user may not feel, that it is easier to tilt the first and second headband parts in relation to each other in the second position than in the first position, although the distance between the contact points are much smaller.
The cantilevers 31 and friction elements 32 force the knobs 18 against either the upper sidewall 21 or the lower sidewall 20 of groove 6. When the headphone 1 is arranged on the head of a user, the first headband part 3 is bent from a relaxed position, whereby a clamping force from the two earphones 2, 28 is directed at the head of the user. In this situation and external reactional force form the user's head is directed at the second headband part 5 in — an upward direction in Figures 5 and 6. This will cause the contact areas B and C to be “active”. If the user bends the headband 3 in the opposite direction, the contact areas A and D will be “active”. The recession 26 is used during assembly to let the knob 18 pass the first protrusion 22. An upper protrusion 29 of the second headband part 4 abuts in the second telescopic position an end face 30 of the first headband part 4, which prevents the second headband part 5 from leaving the first headband part 4. Fig. 7 is a schematic view of the sliding mechanism in a third telescopic position, and Fig. 8 is a schematic view of the sliding mechanism in the second telescopic position. These figures show what is shown in Figs. 5 and 6 in a more schematic way.
DK 180279 B1 7 Reference signs: A first contact area 17 snapping members B second contact area 25 18 knob C third contact area 19 bottom wall of grooves 5D fourth contact area 20 first sidewall of groove 1 headset 21 second sidewall of groove 2 first earphone 22 first groove protrusion 3 headband 30 23 second groove protrusion 4 first headband part 24 top part of second headband part 5 second headband part 25 bottom part of second headband 6 groove part 7 outer wall of second headband part 26 recess in second sidewall 8 first rib 35 27 third headband part 9 Inner wall of first headband part 28 second earphone 10 bottom face of second headband 29 locking protrusion part 30 end face 11 top face of second headband part 31 cantilever 12 side face of second headband part 40 32 recess for friction element 13 side face of second headband part 33 first rib protrusion 14 first end of groove 34 second rib protrusion 15 first end of first headband part 35 first rib sidewall 16 second end of second headband 36 second rib sidewall part 45

Claims (10)

DK 180279 B1 Patentkrav:DK 180279 B1 Patent claim: 1. Hovedtelefon (1) omfattende en første ørekop (2) og et hovedbånd (3) til anbringelse omkring hovedet af en bruger, hvor hovedbåndet (3) omfatter en første hovedbånddel (4) og en anden hovedbånddel (5), der er teleskopisk forbundet, så at længden af hovedbåndet (3) kan indstilles i en længderetning (Y), kendetegnet ved, at den første hovedbånddel (4) omfatter en indre væg (9) med en udragende, langsgående første ribbe (8), hvilken første ribbe (8) har en første ribbe- sidevæg (35) med et første ribbefremspring (33) og en anden, modsat liggende ribbesidevæg (36) med et andet ribbefremspring (34), og hvor den anden hovedbånddel (5) omfatter en ydre væg (7) med en første langsgående rille (6), hvilken første rille (6) har en første rillesidevæg (20) med et første rillefremspring (22) og en anden, modsat liggende rillesidevæg (21) med et andet rillefremspring (23), og hvor den første ribbe (8) er optaget i den første rille (6), og hvor det første og andet ribbefremspring (33, 34) og det første og andet rillefremspring (22, 23) fastlægger små veldefinerede kontaktområder mellem ribbesidevæggene (35, 36) og rillesidevæggene (20, 21).A headphone (1) comprising a first earcup (2) and a headband (3) for placement around the head of a user, the headband (3) comprising a first headband portion (4) and a second headband portion (5) telescopic connected so that the length of the headband (3) can be adjusted in a longitudinal direction (Y), characterized in that the first headband part (4) comprises an inner wall (9) with a projecting, longitudinal first rib (8), which first rib (8) has a first rib side wall (35) having a first rib projection (33) and a second opposite rib side wall (36) having a second rib projection (34), and wherein the second main band portion (5) comprises an outer wall ( 7) with a first longitudinal groove (6), which first groove (6) has a first groove side wall (20) with a first groove projection (22) and a second, opposite groove side wall (21) with a second groove projection (23), and wherein the first rib (8) is received in the first groove (6), and wherein the first and second rib projections (33, 34) and the the first and second groove projections (22, 23) define small well-defined contact areas between the rib side walls (35, 36) and the groove side walls (20, 21). 2. Hovedtelefon (1) ifølge krav 1, hvor indervæggen (9) har en udragende, langsgående anden ribbe (8b), vilken anden ribbe (8b) har en første ribbesidevæg (35) med et første ribbefremspring (33) og en anden, modsat liggende ribbesidevæg (36) med et andet ribbefremspring (34), og hvor ydervæggen (7) har en anden langsgående rille (6b) med en første rillesidevæg (20) med et første rillefremspring (22) og en anden modsat liggende ribbesidevæg (21) med et andet ribbefremspring (23), og hvor den anden ribbe (8b) er optaget i den anden rille (6b), og hvor det første og andet ribbefremspring (33, 34) og det første og andet rillefremspring (22, 23) fastlægger små veldefinerede kontaktområder mellem ribbesidevæggene (35, 36) og rillesidevæggene (20, 21).Headphone (1) according to claim 1, wherein the inner wall (9) has a projecting, longitudinal second rib (8b), said second rib (8b) having a first rib side wall (35) with a first rib projection (33) and a second, opposite rib side wall (36) with a second rib projection (34), and wherein the outer wall (7) has a second longitudinal groove (6b) with a first groove side wall (20) with a first groove projection (22) and a second opposite rib side wall (21). ) with a second rib projection (23), and wherein the second rib (8b) is received in the second groove (6b), and wherein the first and second rib projections (33, 34) and the first and second groove projections (22, 23) defines small well-defined contact areas between the rib side walls (35, 36) and the groove side walls (20, 21). 3. Hovedtelefon (1) ifølge krav 2, hvor den første rille (6) og den anden rille (6b) er tilvejebragt på modsatte sider af den anden hovedbånddel (5).Headphone (1) according to claim 2, wherein the first groove (6) and the second groove (6b) are provided on opposite sides of the second headband part (5). 4. Hovedtelefon (1) ifølge krav 3, hvor den anden hovedbånddel (5) omfatter en bundflade (10), der vender mod brugerens hoved, når hovedtelefonen bæres, en topflade (11), der vender modsat bundfladen (10), og to sideflader (12, 13), der forbinder bundfladen (10) og topfladen (11), og hvor den første og anden rille (6, 6b) er tilvejebragt i de to sideflader (12, 13).The headphone (1) of claim 3, wherein the second headband member (5) comprises a base surface (10) facing the user's head when the headphone is worn, a top surface (11) facing opposite the base surface (10), and two side surfaces (12, 13) connecting the bottom surface (10) and the top surface (11), and wherein the first and second grooves (6, 6b) are provided in the two side surfaces (12, 13). DK 180279 B1DK 180279 B1 5. Hovedtelefon (1) ifølge krav 4, hvor den første hovedbånddel (4) omfatter en første ende (15) og en anden ende (16), hvor den anden hovedbånddel (5) er optaget i den første ende (15), og hvor den første ribbe (8) og den anden ribbe (8b) har en første endedel, der er placeret ved den første ende (15).The headphone (1) of claim 4, wherein the first headband portion (4) comprises a first end (15) and a second end (16), the second headband portion (5) being received in the first end (15), and wherein the first rib (8) and the second rib (8b) have a first end portion located at the first end (15). 6. Hovedtelefon (1) ifølge krav 5, hvor den første og anden rille (6, 6b) har en første ende (14), og hvor det første rillefremspring (22) er anbragt i en første afstand fra den første ende (14), og hvor det andet rillefremspring (23) er anbragt i en anden afstand fra den første ende (14).Headphone (1) according to claim 5, wherein the first and second grooves (6, 6b) have a first end (14), and wherein the first groove projection (22) is arranged at a first distance from the first end (14) , and wherein the second groove projection (23) is arranged at a second distance from the first end (14). 7. Hovedtelefon ifølge krav 6, hvor en knop (18) er anbragt ved den første endedel af den første og anden ribbe (8, 8b), hvilken knop (18) fastlægger det første og andet ribbefremspring (33, 34).The headphone of claim 6, wherein a knob (18) is disposed at the first end portion of the first and second ribs (8, 8b), the knob (18) defining the first and second rib projections (33, 34). 8. Hovedtelefon (1) ifølge krav 7, hvor en fordybning (26) er tilvejebragt i den anden rillesidevæg (21) modsat det første rillefremspring (22), hvilken fordybning (26) er indrettet til at lade knoppen (18) passere forbi det første fremspring (22) under en første samling af den første hovedbånddel (4) og den anden hovedbånddel (5).Headphone (1) according to claim 7, wherein a recess (26) is provided in the second groove side wall (21) opposite the first groove projection (22), which recess (26) is arranged to allow the knob (18) to pass past it. first protrusion (22) during a first assembly of the first headband portion (4) and the second headband portion (5). 9. Hovedtelefon (1) ifølge et hvilket som helst af de foregående krav, hvor ribben/ribberne (6, 6b) og rillernes sidevægge (20, 21) er fremstillet af støbt plast.Headphone (1) according to any one of the preceding claims, wherein the rib (s) (6, 6b) and the side walls (20, 21) of the grooves are made of molded plastic. 10. Hovedtelefon (1) ifølge et hvilket som helst af de foregående krav, hvor rillen/rillerne (6, 6b) og ribben/ribberne (8, 8b) er krumme.Headphone (1) according to any one of the preceding claims, wherein the groove (s) (6, 6b) and the rib (s) (8, 8b) are curved.
DKPA201900011A 2018-12-27 2019-01-05 A headphone with a headband guiding mechanism DK180279B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19209480.3A EP3675521A1 (en) 2018-12-27 2019-11-15 A headphone with a headband guiding mechanism
US16/717,464 US10979798B2 (en) 2018-12-27 2019-12-17 Headphone with a headband guiding mechanism
CN201911338670.3A CN111385692B (en) 2018-12-27 2019-12-23 Headset with headband guiding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811612090 2018-12-27

Publications (2)

Publication Number Publication Date
DK201900011A1 DK201900011A1 (en) 2020-08-21
DK180279B1 true DK180279B1 (en) 2020-09-25

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Application Number Title Priority Date Filing Date
DKPA201900011A DK180279B1 (en) 2018-12-27 2019-01-05 A headphone with a headband guiding mechanism

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