DE573360C - Talking machine - Google Patents

Talking machine

Info

Publication number
DE573360C
DE573360C DER83085D DER0083085D DE573360C DE 573360 C DE573360 C DE 573360C DE R83085 D DER83085 D DE R83085D DE R0083085 D DER0083085 D DE R0083085D DE 573360 C DE573360 C DE 573360C
Authority
DE
Germany
Prior art keywords
lid
wedge
talking machine
shaped cover
cover
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
DER83085D
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.)
RADIOSCHALL LOTHAR SCHMIDT
Original Assignee
RADIOSCHALL LOTHAR SCHMIDT
Publication date
Priority to DER83085D priority Critical patent/DE573360C/en
Application granted granted Critical
Publication of DE573360C publication Critical patent/DE573360C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • 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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Description

Gegenstand der Erfindung ist eine Sprechmaschine mit im Deckel eingebautem Lautsprecher. Es sind bereits Sprechmaschinen bekannt, bei denen in dem keilförmig ausgebildeten Deckel ein Trichter vorgesehen ist, dessen in der Vorderwand vorgesehene Austrittsöffnung den Austritt der Schallwellen nach vorn gestattet.The invention relates to a speaking machine with a loudspeaker built into the cover. Talking machines are already known in which the wedge-shaped Cover a funnel is provided, the outlet opening of which is provided in the front wall the exit of the sound waves is allowed to the front.

Das Wesen der Erfindung besteht darin, to daß über der den keilförmigen Deckel nach unten abdeckenden Platte ein elektrischer Lautsprecher derart eingebaut ist, daß die rückwärts gerichteten Schallwellen aus öffnungen der Seitenwände des Deckels austreten können.The essence of the invention consists in that after the wedge-shaped cover an electric loudspeaker is installed in such a way that the plate covers the bottom rearward sound waves emerge from openings in the side walls of the lid can.

Diese Anordnung hat gegenüber den bekannten Einrichtungen den Vorteil, daß die Schallwellen aus dem Deckel sowohl nach vorn und nach der Seite nur in waagerechter Richtung abgeleitet werden, so daß eine plastische Tonwiedergabe erzielt wird. Hierbei werden durch die den Deckel nach unten ab-' deckende Platte die störenden Einflüsse der Schallplatte und des Tonabnehmers vom as Lautsprecher ferngehalten.This arrangement has the advantage over the known devices that the Sound waves from the lid both to the front and to the side only in a horizontal position Direction can be derived, so that a plastic sound reproduction is achieved. Here the disruptive influences of the Record and pickup kept away from the loudspeaker.

Die Zeichnung zeigt den Gegenstand der Erfindung in einer Ausführungsform, und zwarThe drawing shows the subject matter of the invention in one embodiment, and though

Abb. ι einen Schnitt durch ein Schallplattengerät, Fig. Ι a section through a record player,

Abb. 2 eine Vorderansicht des Geräts mit geschlossenem Deckel,Fig. 2 is a front view of the device with the lid closed,

Abb. 3 und 4 eine Seitenansicht und eine Vorderansicht des Geräts mit aufgeklapptem Deckel.Fig. 3 and 4 are a side view and a front view of the device with opened Lid.

Das Schallplaftengefät besteht wie üblich aus einem Gehäuse 1, in dem im Raum 2 der Antrieb für den nicht dargestellten "Plattenteller untergebracht ist.· Der Plattenteller und der Tonabnehmer liegen über der Werkplatte 3. Die Rückwand 4 ragt über die Werkplatte 3 hinaus und reicht bis zu einem Gelenk 5, mittels dessen der Deckel an der Rückwand aufklappbar befestigt ist. Von der Rückwand 4 aus erstrecken sich nach vorn keilförmige Seitenwände 6, auf welche sich entsprechend ausgebildete Seitenwande 7 des Deckels legen. Diese Einrichtung ist bei akustischen Sprechmaschinen bekannt. Die Rückwand8 des Deckels ist so kurz ausgebildet, daß der aufgeklappte Deckel nur wenig über die Rückwand 4 des Geräts vorsteht. Das ganze Gerät kann also dicht an der Wand eines Zimmers aufgestellt werden, ohne daß das Aufrichten des Deckels behindert wird.The sound plumbing device exists as usual from a housing 1, in which in space 2 the drive for the "turntable, not shown · The platter and the pickup are located above the top 3. The rear wall 4 protrudes beyond the work plate 3 and extends up to one Joint 5, by means of which the cover is attached to the rear wall so that it can be opened. from the rear wall 4 from extending forward wedge-shaped side walls 6, on which suitably designed side walls 7 of the lid are placed. This facility is at acoustic talking machines known. The rear wall8 of the lid is so short that that the opened cover protrudes only a little beyond the rear wall 4 of the device. The whole device can therefore be set up close to the wall of a room without the erection of the lid is hindered.

Die Vorder- oder Schallwand 9 des Deckels nimmt die volle Höhe des Deckels ein und hat durch Stoff, Seide o. dgl. abgedeckte öffnurtgen 10, hinter denen der Lautsprecher 11 angebracht ist. Sie kann, wie dargestellt, senk- 6» recht stehen oder auch um etwa 20 bis 30 ° nach hinten geneigt sein. Nach der Innenseite des Deckels ist der Lautsprecher 11 durch eine schräge Führungswand 12 abgedeckt. In den Seitenwähden 7 sind erfindungsgemäß ebenfalls Schallöffnungen 13 angebracht, die z. B. durch Seide abgedeckt sind, um die rückwärtigen Schallwellen aus der Kammer 14 austreten zulassen.The front or baffle 9 of the lid occupies the full height of the lid and has Openings 10 covered by fabric, silk or the like, behind which the loudspeaker 11 is attached is. As shown, it can be perpendicular or at about 20 to 30 ° be tilted backwards. The loudspeaker 11 is towards the inside of the cover covered by an inclined guide wall 12. In the Seitenwähden 7 are according to the invention also attached sound openings 13, the z. B. covered by silk are to allow the rearward sound waves to exit the chamber 14.

Claims (1)

Patentanspruch:Claim: Sprechmaschine, bei der der keilförmig ausgebildete Deckel an seiner Vorderwand die Schallöffnung trägt, dadurch gekennzeichnet, daß über der den keilförmigen Deckel (7) nach unten abdeckenden PlatteTalking machine with the wedge-shaped cover on its front wall carries the sound opening, characterized in that above the wedge-shaped Cover (7) facing downwardly covering plate (12) ein elektrischer Lautsprecher (11) derart eingebaut ist, daß die rückwärts gerichteten Schallwellen aus öffnungen(12) an electric speaker (11) is installed in such a way that the backward sound waves from openings (13) der Seitenflächen des Deckels austreten können.(13) the side surfaces of the lid can escape. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DER83085D Talking machine Expired DE573360C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER83085D DE573360C (en) Talking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER83085D DE573360C (en) Talking machine

Publications (1)

Publication Number Publication Date
DE573360C true DE573360C (en) 1933-03-30

Family

ID=7416848

Family Applications (1)

Application Number Title Priority Date Filing Date
DER83085D Expired DE573360C (en) Talking machine

Country Status (1)

Country Link
DE (1) DE573360C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806546A (en) * 1954-01-08 1957-09-17 Clarence B Galyon Speaker acoustic box
DE972491C (en) * 1942-03-18 1959-07-30 Philips Nv Electrical device for stereophonic sound reproduction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972491C (en) * 1942-03-18 1959-07-30 Philips Nv Electrical device for stereophonic sound reproduction
US2806546A (en) * 1954-01-08 1957-09-17 Clarence B Galyon Speaker acoustic box

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