DE457511C - Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate - Google Patents

Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate

Info

Publication number
DE457511C
DE457511C DEW75334D DEW0075334D DE457511C DE 457511 C DE457511 C DE 457511C DE W75334 D DEW75334 D DE W75334D DE W0075334 D DEW0075334 D DE W0075334D DE 457511 C DE457511 C DE 457511C
Authority
DE
Germany
Prior art keywords
membrane
diaphragm
vibrate
motor vehicles
acoustic signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEW75334D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck and Co
Publication date
Priority to DEW75334D priority Critical patent/DE457511C/en
Application granted granted Critical
Publication of DE457511C publication Critical patent/DE457511C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

Akustisches Signalinstrument, insbesondere für Kraftfahrzeuge, mit einer unmittelbar zu Schwingungen angeregten Membran. Die Erfindung betrifft ein akustisches Signalinstrument, insbesondere für Kraftfahrzeuge, mit einer unmittelbar zu Schwingungen angeregten Membran und bezieht sich auf eine besondere Form dieser Membran, durch die. eine größere Amplitude als bei einer einfachen Membran erreicht und infolge der höheren eigenen Frequenz derselben Obertöne erzeugt werden können.Acoustic signal instrument, in particular for motor vehicles, with a membrane that is immediately excited to vibrate. The invention relates to a acoustic signal instrument, especially for motor vehicles, with a direct to vibrate the membrane and refers to a special form of this Membrane through which. reached a greater amplitude than with a simple membrane and due to the higher natural frequency of the same overtones can be generated.

In der Zeichnung ist eine Ausführung im Schnitt dargestellt.In the drawing, an embodiment is shown in section.

Die neue Membran besteht aus drei Teilen a, b, c, die zu einer einzigen Membran verbunden sind. Der in dem Gehäuse eingespannte Teil d hat in der Mitte eine große Öffnung h, an welche sich der trichterförmig ausgebildete Membranteil b anschließt. Der Teil c schließt die Trichteröffnung ab und ist an einem Stößel d, der mit dem Ankere fest verbunden ist, befestigt. Es ist ohne weiteres ersichtlich, daß hierdurch eine größere Amplitude erreicht wird; denn die Membranteile a, b, c ergeben zusammen eine größere Amplitude, als wenn eine aus einer Scheibe bestehende Membran mit dem Stößel verbunden wäre. Außerdem werden durch die Membranteile b und c Obertöne infolge der höheren eigenen Frequenz dieser Teile gegenüber dem Membranteil erzeugt.The new membrane consists of three parts a, b, c, which are connected to form a single membrane. The part d clamped in the housing has a large opening h in the middle, to which the funnel-shaped membrane part b adjoins. The part c closes the funnel opening and is attached to a plunger d, which is firmly connected to the armature e. It is readily apparent that a greater amplitude is achieved as a result; because the membrane parts a, b, c together result in a greater amplitude than if a membrane consisting of a disk were connected to the plunger. In addition, overtones are generated by the diaphragm parts b and c due to the higher frequency of these parts compared to the diaphragm part.

In dem Membranteil b können auch Löcher vorgesehen werden. Statt des Teils b könnte aber unter Umständen auch eine andere Verbindung, die dann lediglich zur Führung des Teils c dienen würde, vorgesehen sein.Holes can also be provided in the membrane part b. Instead of Part b could, however, under certain circumstances also be a different connection, which then only would serve to guide the part c, be provided.

An sich sind akustische Signalinstrumente mit mehreren Membranen oder mit einer einzigen, aber mit einem Mitschwinger verbundenen Membran bekannt; in allen diesen Fällen ist jedoch der Stößel mit der aus einer einzigen Scheibe bestehenden Membran verbunden, die infolgedessen keine so große Amplitude wie .die mehrteilige Membran der Erfindung hat.As such, acoustic signaling instruments with multiple membranes or are known with a single membrane, but connected to a co-oscillator; in in all of these cases, however, the plunger is the one consisting of a single disc Connected to the membrane, which consequently does not have as large an amplitude as .the multi-part Has membrane of the invention.

Claims (1)

PATENTANSPRÜCHE: i. Akustisches Signalinstrument, insbesondere für Kraftfahrzeuge, mit einer unmittelbar zu Schwingungen angeregten Membran, dadurch gekennzeichnet, daß die Membran (a, b, c) mehrteilig in der Weise ausgeführt ist, daß mit einer frei schwingbaren Ringöffnung (h) eines am Gehäuse befestigten Membranringes (a) eine Membranscheibe (c) verbunden ist, an der der Stößel (d) angreift. a. Signalinstrument nach Anspruch i, dadurch gekennzeichnet, daß die Verbindung zwischen dem Membranring (a) und der Membranscheibe (c) durch einen sich nach dieser zu trichterförmig erweiternden, unter Umständen gelochten Membranteil (b) erfolgt.PATENT CLAIMS: i. Acoustic signal instrument, especially for motor vehicles, with a diaphragm which is directly excited to vibrate, characterized in that the diaphragm (a, b, c) is constructed in several parts in such a way that with a freely oscillating ring opening (h) of a diaphragm ring ( a) a diaphragm disc (c) is connected to which the plunger (d) engages. a. Signal instrument according to claim i, characterized in that the connection between the diaphragm ring (a) and the diaphragm disc (c) is made by a diaphragm part (b) which widens into a funnel-shaped manner after this and which may be perforated.
DEW75334D Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate Expired DE457511C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW75334D DE457511C (en) Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW75334D DE457511C (en) Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate

Publications (1)

Publication Number Publication Date
DE457511C true DE457511C (en) 1928-03-17

Family

ID=7609869

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW75334D Expired DE457511C (en) Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate

Country Status (1)

Country Link
DE (1) DE457511C (en)

Similar Documents

Publication Publication Date Title
DE69317802T2 (en) Method and device for sound enhancement using encapsulation of multiband pass filtered signals in comb filters
DE457511C (en) Acoustic signal instrument, especially for motor vehicles, with a membrane that is directly excited to vibrate
DE492932C (en) Acoustic signal instrument
AT156423B (en) Acoustic signal device.
DE582297C (en) Connection of a musical instrument with a microphone to convert mechanical into electrical vibrations
AT356712B (en) CIRCUIT FOR REGENERATING DISTRUCTED AMPLITUDE-MODULATED IMPULS
AT152946B (en) Sound recording device, in particular for overtaking motor vehicles.
DE496622C (en) Sound signal device for generating high tones of great volume
DE557818C (en) Loudspeaker with a large area membrane and an adjoining bell
DE578551C (en) Magnetic horn
DE441628C (en) Piezo-electric vibration generator
DE477361C (en) Membrane sound signal device in which the pressure medium is passed through a curved feed pipe that penetrates the housing wall to the center of the sound membrane
DE2741641A1 (en) Harmonica with each reed moving in magnetic field - with variation in intensity of magnetic field to produce special effects otherwise needing different amplifiers
DE398195C (en) Loudspeaker telephone
DE872457C (en) Device for the transmission of overtaking signals to vehicles, especially motor vehicles
DE601117C (en) Condenser speakers
DE602845C (en) Electrodynamic ribbon microphone
DE848206C (en) Crystal speaker system
DE1192702B (en) Device for generating reverberation (echo) in a loudspeaker
DE410318C (en) Sound apparatus for underwater sound waves
DE355769C (en) Wooden sound box
DE813134C (en) Audible warning device
DE577676C (en) Electrodynamic sound transmitter
DE374754C (en) Signal horn with a centrally clamped membrane that is electromagnetically excited by a ring magnet
DE571237C (en) Procedure for automatic gain control