DEP0033307DA - Hyperbaric loudspeaker with several funnels - Google Patents

Description

Siemens '& Halske Munich * the' 2.6- ·

Aktiengesellschaft '' ^r:

Berlin-SiemenBctadt, BA '9 / 52Q / $ 7

Postal addressi "
Munich 1
Dienerstr »/

Druckkämmerl loudspeaker with. several '"funnels *

The invention relates to calibration

which are known to have a particularly high degree of effectiveness due to a pressure impregnation in connection with a sound funnel. Funnel opening audible _i st # To be able to use certain & zUJ5fönj z _e B #. on platforms? ' in Bahnhofshallen- yder on free the sound to transmit alls-η sides? One has used several * in different aiohtungen Binzellautspreoher _f each of which has a -3? rioh "\ ter and an associated drive system" * Due oh dSe \ invention we are opposed to a novel 'Duokkeaimerlauttspreoher ^ which has preferably been proposed for one single drive system works and alρ unit is suitable the sound after all usual sightings- »u üiertragea * ^ ieo seen according to the invention, fiaduroh» that two & the more funnels radiate from coherent sides ^ 'preferably symmetrical? in a common *' preferably from a single pressure chamber system The axes of the funnels lie two-way, rotationally symmetrical, preferably with a slight inclination to the vertical axis.

HMÜ / J ■ "'-'.« 2 «..

- 2 - 'BA 9/520 / ttf

A favorable arrangement will be given by the further B ^ fin «. This is achieved * that the confluence & @ r funnel A branching piece takes place »which is formed from a number of partial rows and a®m semen Teiltriohter at the beginning of the day ©, the formation of this "connecting pieces" is also dealt with # to this the Diafnel® «· nation of the funnel and the mechanical® structure dt?

Invention and related details are based on 4-Abbe 1 "and 2 examples as ^r arläutfc3? Tf>

In Fig. 1 is shown as an example a pruekkanmes & autspr ^ ihex ¹ with four single _{triplets 1, 2 f} 3t 4 ^ These show near different sides - in the execution example offset by an angle of 90 ° and open out - in the shape of a ray 5, a _{p is} the driven by the gemeia ¹ '''®ame pressure chamber system 6, wird§ 2) ie, aoheen a * # Agf a "g a / lie rotatiesfsymmetriseh sur tical rotation axis Ae and .nafji preferably · somewhat inclined to Teiltriohter below «The latter arrangement has the. 7orteil | Since when the loudspeaker is fastened above the listener, the height of the braid would essentially be recorded - and thus the audibility would be improved If the axes are inclined differently in pairs © ymmetriseh if necessary, ^one can also - because one Aoheenjjaar (.A, "ij point a little downwards and the other axis ^ aat (Ag * A ^) aa" h upwards "for manufacturing reasons According to the further invention it is advantageous to merge the funnels into a branching _{piece e} ! This is formed from the corresponding number of partial funnels 7 - which form a unit with the common partial funnel 5 * D&B branching piece has fasteners * S ₉ B ₉ the planes 6. for the cultivation des! »ruokkammeroyeteme 6 as well as the outgoing main funnel 1 _{,. 2 f} 3j 4 * $ ^he partial funnels 7 form in their cross-section ^ course a continuous 3? © rt« »

- 3 - PA 9/520/87

Reduction of angesohlosßenen it main hopper "To achieve perfect acoustic conditions in the sound branch, the main hopper or _e 'the divided Judges 7 and Tells Judge 5 in" particularly with regard to their Quersehnittverlaufes sized 35s, this is done so that the common Tells Judge 5 term one ate ** continuation of the sum of the leading-* preferably exponentIeIlen Haupttriohter l _f 2 _f 3) 4 or _e connected thereto divided judges ybildet and is guided in its length to a Eingangs8ffnung that approximate the cross-section or a main Trichtere "of the connected thereto 'Teiltriohtero 7 at corresponds to the confluence * This dimensioning is explained in more detail using ABk ^ 2, where a branching piece for two funnels is in cross section «

* The partial triohter 7 are connected to the corresponding main triohter and the common partial funnel $ to the drive system * The partial triohter 7 are preferably introduced with a certain curvature into the common partial funnel 5 According to the invention, the partial funnel 5 forms a continuous ¹ continuation of the sum of the Individual triohter 7 »At the branching fistjelle, the sum of the cross-sections of the partial triad '7 is equal to the cross-section of the common leiltrient 5 * The latter is in its length, preferably up to an entry opening 9 for" the drive system - which is approximately the cross-section of the partial triohter 7 the branch point 10 corresponds. The latter measure gives the advantage _? that one can also build a single loudspeaker from the pressure chamber system 6 and one of the funnels (X ^ 2 _? 3) A) of the multiple system "of the invention only one valve funnel 7 attached & a en _f dea? ends at branching point 10 and there it merged into the drive system

The described arrangement can of course be modified within the scope of E _r-making in a way, 'who'

~ A - EA 9/520/87

the "Jflan can _ζ β Β" instead of the four funnel anöehliessen a different number hopper, in the limit of two * Be is also possible instead of the screened ^ * shown - f s funnel and curved or funnel geschaohtelte

to use the V _e rzweigungsstück and AHt rubbed system (Druskkammersystem) are conveniently arranged in a closed housing} which preferably is cylindrical * optionally with the use of cables of the funnel as a wall for said housing »iPine arrangement with two opposite radiating hoppers is Particularly suitable for command systems on platform platforms * A system that radiates from all sides is suitable for station halls, free spaces and the like _. Cables or chains "The divided funnel 5 can, moreover, the system 6 aeinund also discharged downward accordingly below the funnel sitzenj it can u" U "au, are arranged laterally ch ^ ¹ ^

In order to also supply the area directly below the Spreohers with sound, can one also let a funnel radiate downwards in the direction of the Vertlkal - SiChse Ac? of according to the rules of ifr "* · making in the Teiltriohter 5 opens * Ds is this also mSglich _r a separate * naöh bottom speakers geriohteten with private JLntriebsystem hu use? the * - since it only needs to have a short range * ~ u®U «can be a radiating cone loudspeaker without a pressure chamber« Instead of the common air-chamber drive system 6, you can also use <& ~ * & ~~ · * "* Several individual systems can be used to increase the performance«, a system with several membranes is also suitable *

7 ^ claims
1 sheet of drawings

Claims (1)

- 5 - SAT 9/520/87 £ atant claims le pressure chamber loudspeaker with several funnels * marked ? that two or more Triohter "(1 * 2 _f 4) radiate from different sides, preferably symmetrically * into a common *, preferably from a single pressure chamber system (6) driven? Teiltrlohter (5) * 2a loudspeaker according to claim Ij characterized ^ that the axes (A _4. , A ₉ ? A-zg Aa) of the funnel {1, 2f ~ 3 $ 4) are rotationally symmetrical! preferably with a low incline to the vertical axis of rotation (Ac) 3 * loudspeaker according to claim 1 or 2 _f, characterized in that the junction of the judges (I ₉ 2 _? 3 # 4) takes place via a branch piece »which is formed from a corresponding number of sub-funnels (\) and a common sub-funnel (5) at the beginning » 4 »Loudspeaker according to claim 3? characterized? that the branching post had fasteners * z * Be flanges (8) _f f-'for the attachment of the pressure chamber ^^ r-system (6) and the outgoing main triohter (1, 2 _$ 3 $ 4) " 5e loudspeaker according to one of claims 1-4? daduroh in j that the common TeiüLtfcdjehter (5) with respect to seineg · cross-sectional course a steady 3? orti · reduction of the leading-^ ßiumme preferably ezpsnentiellen main hopper (1, 2, ₉ 3 $ 4) bzw® connected thereto divided judges {7) forms and in its 3) length is led to an inlet opening (9) * which corresponds approximately to the cross-section of a main funnel (I? 2, 3 $ 4) or "the connected partial conveyor" * ters (7) at the confluence (10) 6e loudspeaker according to one of claims 1 · * 5 * dadurah characterized »that another, preferably after A funnel radiating below is provided in the direction of the vertical axis (X, -) and in the common part - funnel (5) opens " - β - £ Α 9/520/87 7 © loudspeaker according to one of claims 3 - S _9, characterized in that the branching piece and pressure chamber system (6) are arranged in a closed, for example cylindrical, housing.