SE176990C1

SE176990C1 -

Info

Publication number: SE176990C1
Authority: SE
Publication date: 1961-01-01

Description

Uppfinnare: P L Michael, J Borsh och J P Strange Foreliggande uppfinning hanfor sig till bronskydd och narmare bestamt till en &onpropp, bestaende av en avlang, ett fluidum innehallande elas tisk kropp, som for underlattande av dess inforande i en ifirongang fir avsmalnande mot sin inre ande och vars inre andparti är expansibelt i sidled. Inventors: PL Michael, J Borsh and JP Strange The present invention relates to bronze protection and more specifically to a stopper, consisting of an elongate, fluid-containing elastic body which, for facilitating its insertion into an ifirong passage, tapers towards its inner spirit. and whose inner duck portion is laterally expandable.

Oronskydd i form av oronproppar anvandas som kant for att reducera det butler, som kan na innerorat. Insatt i den yttre orongangen bildar en sadan oronpropp en akustisk harriar, som skyddar innerOrat fran stOrande eller rent av skadligt huller. Effektiviteten av dessa oronskydd ãr mycket beroende av tatningen mellan oronproppen och orongangen, och en noggrann passning, fir dadar av storsta betydelse, men den är svar att uppna. Concern in the form of corks is used as an edge to reduce the butler that can reach the interior. Inserted into the outer canal, such a plug forms an acoustic harrier, which protects the inner ear from disturbing or even harmful holes. The effectiveness of these restraints is highly dependent on the sealing between the restraint plug and the restraint, and a careful fit is of the utmost importance, but it is the answer to be achieved.

Anclamalet med uppfinningen ár att astadkomma en oronpropp av ovan angiven typ, som, forutom att den Sr latt att anbringa pa plats i orongangen under anvandningen, smidigt anpassar sig efter brats rorelser, sa att den standigt har noggrann passning i orongangen. Detta andamal uppfylles pa ett fortraffligt salt av den enligt uppfinningen konstruerade oronproppen, vilken i forsta hand kannetecknas darav, att kroppen Sr uppdelad i en inre ,och yttre kammare och att en envagsventil är anbragt i kroppen mellan kamrarna, vilken ventil Sr inrattad att vid maneull sammanpressning av den yttre kammarens vagg genomslappa fluidum till den inre kammaren for utvidgning av denna till storleken och formen av det Ora, som skall skyddas, och inrattad att, medan proppen Sr i anvandning, kvarhalla fluidet i den inre kammaren. The object of the invention is to provide a restraint plug of the type indicated above, which, in addition to being easy to place in place in the restraint during use, adapts smoothly to abrupt movements, so that it constantly has an accurate fit in the restraint. This object is fulfilled on an excellent salt of the earplug constructed according to the invention, which is primarily characterized by the fact that the body is divided into an inner and outer chamber and that a one-way valve is arranged in the body between the chambers, which valve is arranged to compressing the cradle of the outer chamber to permeate fluid into the inner chamber to expand it to the size and shape of the Ora to be protected, and arranged to, while the plug Sr in use, retain the fluid in the inner chamber.

Uppfinningen beskrives narmare i det följande under hanvisning till bifogade ritfling, pa vilken den askadliggores i form ,av nagra utforingsexempel. Fig. 1 visar en langd sektion genom en ett fluidum innehallande elastisk oronpropp enligt foreliggande uppfinning. Fig. 2 visar en modifierad oronpropp, som fir forsedd med ett ljudoverforande ror och en anordning for att upptaga en hortelefon. Fig. 3 visar ett arrangemang av ett par oronproppar, som aro utrustade med ljudoverforande ror, vilka medelst forlangningsror aro anslutna till ett hus, anordnat att upptaga en hortelefon. The invention is described in more detail below with reference to the accompanying drawing, in which it is incorporated in the form of some exemplary embodiments. Fig. 1 shows a long section through a fluid-containing elastic resting plug according to the present invention. Fig. 2 shows a modified earplug provided with a light-conducting tube and a device for receiving a headphone. Fig. 3 shows an arrangement of a pair of earplugs, which are equipped with light-conducting tubes, which by means of extension tubes are connected to a housing, arranged to receive a headphone.

I fig. 1 visas en langstrackt kropp 6 av proppen, vilken kropp bestar av elastiskt material, exempelvis gummi. Proppen är avsmalnande mot sin inre ande, sã att den med latthet kan insallas i en orongang. Proppen dr ihalig, men den fir uppdelad i tva kamrar 7 och 8 medelst en skiljevagg 9, som Sr forsedd med ett centralt hal 10. Den yttre kammaren 7 kan vara utformad som en forradskammare och den inre kammaren 8 som en expansionskammare. Be tva kamrarna aro fyllda med ett fluidum, exempelvis luft eller en valska. Typiska vatskor arc vatten, glycerin och blandningar av vatten och glycerin. Da en vatska anvandes, Sr en blandning av vatten och glycerin sarskilt lamplig, eftersom man med denna lätt kan reglera overforingshastigheten av vatska frail fOrradskammaren till den expansibla kammaren. Glycerin är sarskilt anyandbart, dar en lag fryspunkt och battre lagfrekvensdampning dro onskvarda. Fig. 1 shows an elongate body 6 of the plug, which body consists of elastic material, for example rubber. The stopper is tapered towards its inner spirit, so that it can be easily seated in an orange passage. The plug is integral, but it is divided into two chambers 7 and 8 by means of a partition 9, which is provided with a central hall 10. The outer chamber 7 can be designed as a storage chamber and the inner chamber 8 as an expansion chamber. Ask both chambers to be filled with a fluid, such as air or a roller. Typical water shoes arc water, glycerin and mixtures of water and glycerin. When a liquid is used, a mixture of water and glycerin is particularly suitable, since with this one can easily control the rate of transfer of liquid from the storage chamber to the expandable chamber. Glycerin is especially non-breathable, where a low freezing point and better low-frequency steaming did not help.

Enligt foreliggande uppfinning regleras ha-let 10 av en ventil, sá att fluidum fran forradskammaren kan pressas in i expansionskammaren och kvarhallas i denna. Folj aktligen Sr ett ventilorgan 12 monterat i kammaren 8 i tatande ingrepp med skiljevaggen 9 omkring det centrala halet 10. Ventilorganet Mlles pa plats medelst en periferiell flans 13, som passar snavt in i ett ringformigt urtag 14 i expansionskammarens sidovagg. Foretradesvis overlappar och omsluter flansen 2— — skiljevaggen for att hjalpa till att halla ventilorganet pa plats. Ventilorganet bestar likalades av ett elastiskt material, sa att fluidumtrycket 1 forradskammaren, da denna sammanpressas, kan pressa ventilorganet mat och bort fran skiljevaggen. Da detta sker, pressas fluidum fran fOrradskammaren genom halet 10 men a.ven genom ett flertal kanaler 15, vilka stracka sig genom ventilorganet omkring dettas centrala axel, foretradesvis nara flansen 13. Da trycket avlagsnas fran forradskammarens vaggar, kommer ventilorganet att pressas tillbaka till tatande anliggning mot skiljevaggen, och kanalerna 15 komma att tillslutas vid sina andar av skiljevaggen. Foljaktligen tjanar skiljevaggen som ett ventilsate. Da ventilorganet har anliggning mot skiljevaggen, tillslutas kanalerna 15 genom hero-ring med skiljevaggen, darigenom astadkommande ytterligare en lathing forutom den tat-ling, som forefinnes mellan venlilorganet och halet. Ventilen liar saledes tva tatande funktioner. According to the present invention, the hole 10 is controlled by a valve so that fluid from the storage chamber can be forced into the expansion chamber and retained therein. In fact, a valve member 12 is mounted in the chamber 8 in tight engagement with the partition 9 around the central tail 10. The valve member is milled in place by means of a peripheral flange 13 which fits snugly into an annular recess 14 in the side wall of the expansion chamber. Preferably, the flange overlaps and encloses the separator cradle to help hold the valve member in place. The valve means likewise consists of an elastic material, so that the fluid pressure in the storage chamber, when this is compressed, can press the valve means food and away from the partition. When this occurs, fluid from the storage chamber is forced through the tail 10 but also through a plurality of channels 15, which extend through the valve member about its central axis, preferably near the flange 13. As the pressure is relieved from the storage chamber cradles, the valve member will be forced back to take abutment against the separator, and the channels 15 will be closed at their spirits by the separator. Consequently, the crib serves as a valve seat. Since the valve member abuts the separator, the channels 15 are closed by engaging the separator, thereby providing an additional lathing in addition to the tatling present between the valve member and the tail. The valve thus has two gripping functions.

Det är onskvart, att halet 10 anordnas can-trait i skiljevaggen, eftersom trycket av fluidet fran forradskammaren harvid kommer att riktas mot en central del av ventilorganet, sa att detta Mit pressas bort fran skiljevaggen. Foretradesvis forses ventilorganet med ett utsprang, som stracker sig in i halet i skiljevaggen och ingriper med dennas sidovagg. Foljaktligen kan en effektiv tatning uppnas, aven om proppens delar aro hell sma. It is unfortunate that the tail 10 is arranged contracted in the partition, since the pressure of the fluid from the storage chamber will then be directed towards a central part of the valve member, so that this Mit is pressed away from the partition. Preferably, the valve means is provided with a projection which extends into the tail of the separating cradle and engages with its side cradle. Consequently, an effective seal can be achieved, even if the parts of the plug are quite small.

Efter proppens insattning i orat sammanpressas den yttre kammaren 7 for att pressa fluidum in i den inre kammaren 8 och utvidga denna till snavt ingrepp med den omgivande orongfingen. Lampligast ãr att expansionskammarens vagg nara sin inre ande fOrses med ett inre spar 16, som okar bojligheten av denna del av kammaren, s. att den latt utvidgas till den lokform, som visas medelst streckade linjer. Fluidum overfores, tills den person, som anvander proppen, kanner en god passnina0. Vennlen kommer att hindra fluidum fran att uttommas ur expansionskammaren, men efter proppens utdragning ur orat kan proppens ventildel rullas eller sammanpressas mellan fingrarna for att upphava tatningen, st att fluidet kan atervanda till forradskammaren, varvid proppen Ater ãr klar for anvandning. Proppen kan tillpressas, medan den befinner sig i 8rat, genom att prop-pen sammanpressas i hojd med ventilorganet pa sadant salt, att ventilorganet skiljes fran skiljevaggen, varvid fluidet Unites atervanda till forradskammaren. After the plug is inserted into the ear, the outer chamber 7 is compressed to press fluid into the inner chamber 8 and expand it into tight engagement with the surrounding ear finger. Most suitable is that the cradle of the expansion chamber near its inner spirit is provided with an inner groove 16, which increases the flexibility of this part of the chamber, so that it is easily extended to the locomotive shape, which is shown by broken lines. Fluid is transferred until the person using the stopper knows a good passnina0. The valve will prevent fluid from being discharged from the expansion chamber, but after the plug is pulled out of the ear, the valve part of the plug can be rolled or compressed between the fingers to cause the seal, so that the fluid can return to the storage chamber, the plug Ater is ready for use. The plug can be compressed while it is in place by compressing the plug at the level of the valve member on such salt that the valve member is separated from the partition, leaving the fluid Unites at the storage chamber.

Den i fig. 2 visade modifikationen av oronproppen liknar den som visas i fig. 1, men en bojlig gummikapa 21 fir fast monterad pa proppens yttre ande. Denna kapa dr forsedd med en skal 22, som ãr utformad for att upptaga en liten hortelefon 23. Hortelefonens inre yta ingriper med en insats 24, som ar fEirsedd med ett centralt urtag 26 far att upptaga ljudet fran hortelefonen. Fran ena sidan av detta urtag stracker sig ett bojligt ror 27 genom insatsen och genom proppens vagg, vilket ror darefter stracker sig genom proppens inre kammare och genom proppens inre an.de. 115- ret skall vara sa stabilt, att del icke kan sammanpressas av fluidumtrycket i oronproppen. Fordelen med denna konstruktion är, att icke onskvart huller av proppen hindras intranga i Orat, men. att onskvarda ljud sattas i forbindelse med orat genom hortelefonen och roret. The modification of the concern plug shown in Fig. 2 is similar to that shown in Fig. 1, but a flexible rubber cap 21 is fixedly mounted on the outer end of the plug. This cover is provided with a cover 22, which is designed to receive a small earphone 23. The inner surface of the earphone engages with an insert 24, which is provided with a central recess 26 for receiving the sound from the earphone. From one side of this recess a flexible tube 27 extends through the insert and through the cradle of the plug, which tube then extends through the inner chamber of the plug and through the inner ande of the plug. The air must be so stable that part cannot be compressed by the fluid pressure in the agitator plug. The advantage of this construction is that not unwanted holes of the plug are prevented from penetrating into the Orat, but. that unwanted sounds are connected to the word through the earphone and the rudder.

Samma fordel kan uppnas, utan att oronpropparnas storlek och vikt behover Oka, genom tillampning av den ide, som askadliggores i fig. 3. Propparna 30 likna de, som visas i fig. 1, men de aro forsedda med rot. 31, vilka likna de, som visas i fig. 2. Itaren aro emellertid mycket langre och stracka sig bort fran propparna till en lamplig plats, dir de kunna sattas i forbindelse med ett en hortelefon upptagande hus 32, som lace uppbares av flagon propp. The same advantage can be obtained, without the need for the size and weight of the agitator plugs, by applying the idea which is damaged in Fig. 3. The plugs 30 are similar to those shown in Fig. 1, but they are provided with a root. 31, which are similar to those shown in Fig. 2. However, the pliers are much longer and extend away from the plugs to a suitable place, where they can be connected to a headphone receiving housing 32, the lace of which is supported by a flake plug.

Claims

Pat entansprak:

An oron plug, consisting of an elongate, fluid-containing elastic body (6), which facilitates its insertion into an orono blno. is tapered towards its inner spirit and whose inner duct is laterally expandable, characterized in that the body (6) is divided into a hire and outer chamber (7, 8) and that a one-way valve (9, 10, 12) is arranged therein. the body (6) between the chambers (7, 8), which valve is arranged to, by manual compression of the cradle of the outer chamber (7), permeate fluid to the inner chamber (8) to expand it to the size and shape of the Ora, which shall be protected, and arranged to, while the plug 5.ri in use, retain the fluid in the inner chamber (8).

Plug according to claim 1, characterized in that the one-way valve (9, 10, 12) comprises a valve body (12), which is arranged to abut Wanda in a hall (10), which Fur is formed in a partition (9) between the inner and outer chamber (7, 8).

A plug according to claim 2, characterized in that the valve body (12) is provided with one or more channels (15) axially covered from said neck (10) and consists of an elastic material.

A plug according to any one of the preceding claims, characterized in that a sound-transmitting, flexible tube (27, 31) extends longitudinally through the hollow, elastic body (6) and that a device for receiving and retaining an earphone (23) a "placed at the outer linden of ndmnda ror.

Plug according to patent claim 4, characterized in that the earphone (23) receiving device consists of a cover (21), the device being a housing (32), which separates mounted on the outer end of the plug. .frau proppen.

6. Plug according to patent claim 4, which is characterized by the fact that the telephone is occupied. Boktr. P. A. Norstedt & Soner. 610089