DE435861C - Arrangement for sound absorption in typewriters - Google Patents
Arrangement for sound absorption in typewritersInfo
- Publication number
- DE435861C DE435861C DEW67699D DEW0067699D DE435861C DE 435861 C DE435861 C DE 435861C DE W67699 D DEW67699 D DE W67699D DE W0067699 D DEW0067699 D DE W0067699D DE 435861 C DE435861 C DE 435861C
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- typewriters
- parts
- lead
- sound absorption
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/10—Sound-deadening devices embodied in machines
Landscapes
- Handling Of Sheets (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Description
Anordnung zur Schalldämpfung bei Schreibmaschinen. Es ist bereits vorgeschlagen worden, zur Schalldämpfung bei Schreibmaschinen u. dgl. an den schlag- oder stoßaufnehmenden Teilen Anschläge aus nichttönendem Metall, z. B. Aluminium, Blei usw., vorzusehen. Derartige Anschläge haben den Nachteil, daß sie bald Formveränderungen erleiden und dadurch unbrauchbar werden.Arrangement for soundproofing on typewriters. It is already been proposed to dampen the sound of typewriters and the like on the impact or shock-absorbing parts stops made of non-sounding metal, e.g. B. aluminum, Lead, etc., to be provided. Such attacks have the disadvantage that they soon change shape suffer and thereby become unusable.
Demgegenüber kennzeichnet sich die Anordnung zur Schalldämpfung bei Schreibmaschinen, Rechenmaschinen u. dgl. gemäß der Erfindung dadurch, daß die schlag- oder stoßaufnehmenden Teile derselben von den sich anschließenden Teilen durch Zwischenlagen aus Blei oder einer bleihaltigen Legierung getrennt sind. Dadurch wird unter Vermeidung des obenerwähnten Übelstandes eine außerordentlich günstige ,Wirkung erzielt.In contrast, the arrangement for soundproofing is characterized by Typewriters, calculating machines and the like according to the invention in that the impact or shock-absorbing parts of the same from the adjoining Parts are separated by intermediate layers made of lead or an alloy containing lead. This becomes an extraordinary one while avoiding the above-mentioned inconvenience favorable, effect achieved.
Erfindungsgemäß können dabei die Zwischenlagen auch durch verbleite Teile aus anderen Metallen oder Materialien gebildet werden, oder sie können durch Verbleiung der in Betracht kommenden Teile z. B. mittels Spritzgusses erzeugt sein. Erstere Maßnahme hat den Vorteil einer Verringerung des Maschinengewichtes und letztere außerdem noch den einer vereinfachten Herstellungsweise zur Folge.According to the invention, the intermediate layers can also be leaded through Parts can be formed from other metals or materials, or they can be made by Leading of the relevant parts z. B. be generated by injection molding. The former measure has the advantage of reducing the weight of the machine and the latter also result in a simplified production method.
Die erwähnten Bleizwischenlagen wären demzufolge bei einer Schreibmaschine zwischen dem Walzenkern und dem Gummimantel der Schreibwalze, unter dem Prellanschlag des Typenhebellagers, zwischen letzterem und dem Lagersteg- für dasselbe und möglichst an allen sonstigen Stellen anzubringen, an welchen die Fortpflanzung des von Schlägen und Stößen herrührenden Schalles behindert werden soll. Die Zeichnung zeigt die Anordnung beispielsweise an dem Prellanschlag des Typenhebellagers der Schreibmaschine.The lead interlayers mentioned would therefore be on a typewriter between the roller core and the rubber jacket of the platen, under the bumper of the type lever bearing, between the latter and the bearing web - for the same and as possible to be attached to all other places where the propagation of blows and impacts from sound is to be hindered. The drawing shows the Arrangement, for example, on the bump stop of the type lever bearing of the typewriter.
Der Prellanschlag a ist vom Typenhebellager b durch eine Zwischenlage c aus Blei isoliert. Durch diese wird der bei Aufschlag des Typenhebels d erzeugte Schall abgefangen und kann sich nicht weiter fortpflanzen.The bump stop a is from the type lever bearing b through an intermediate layer c insulated from lead. Through this the generated when the type lever d is impacted Intercepts sound and cannot propagate any further.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW67699D DE435861C (en) | 1924-11-28 | 1924-11-28 | Arrangement for sound absorption in typewriters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW67699D DE435861C (en) | 1924-11-28 | 1924-11-28 | Arrangement for sound absorption in typewriters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE435861C true DE435861C (en) | 1926-10-21 |
Family
ID=7607940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW67699D Expired DE435861C (en) | 1924-11-28 | 1924-11-28 | Arrangement for sound absorption in typewriters |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE435861C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE968339C (en) * | 1941-02-26 | 1958-02-06 | Aeg | Low-noise contact device for periodic switches |
-
1924
- 1924-11-28 DE DEW67699D patent/DE435861C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE968339C (en) * | 1941-02-26 | 1958-02-06 | Aeg | Low-noise contact device for periodic switches |
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