EP0029570B1 - Sound absorbent module in an appliance - Google Patents
Sound absorbent module in an appliance Download PDFInfo
- Publication number
- EP0029570B1 EP0029570B1 EP80107130A EP80107130A EP0029570B1 EP 0029570 B1 EP0029570 B1 EP 0029570B1 EP 80107130 A EP80107130 A EP 80107130A EP 80107130 A EP80107130 A EP 80107130A EP 0029570 B1 EP0029570 B1 EP 0029570B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- noise
- block
- strip
- printer
- housing
- 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
Images
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
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/08—Bar or like line-size platens
Definitions
- the invention relates to a noise-damped structural unit of a device, in particular the pressure bar of a mechanical printer, on which noise-causing mechanical forces act.
- Devices such as mechanical printers, typewriters, etc., which are used in office operations, must be silenced to reduce the environmental impact. For this, they are e.g. B. arranged in the noise-damped housing.
- Such solutions are very complex and are not very suitable for noise reduction for devices in which e.g. Paper sheets or paper webs are led out of the device. It is also possible that only the parts of the device from which the unwanted noise emanates are damped by means of between the device part to be damped and the stationary device frame between switched damping elements. The result is that the wear resistance of these parts is reduced.
- the object on which the invention is based is to implement a noise-damped structural unit of a device, in particular the pressure bar of a mechanical printer, on which mechanical forces which cause noise are to be carried out in such a way that the wear resistance is maintained with high noise damping.
- the structural unit consists of a damping material arranged in a carrier block and a metal strip which is arranged on the damping material and is not directly connected to the carrier block and on which the mechanical forces act.
- the support block can expediently be attached to the device housing. It must be ensured that the metal band is not connected directly to the device housing.
- the metal strip is expediently made of steel in order to keep the wear as low as possible.
- the advantage of the invention is, in particular, that the noise reduction and wear resistance of the assembly are achieved with the least cost, with only a very small amount of airborne noise being emitted to the environment and a very low structure-borne noise to the device housing, which, on the other hand, ensures the wear resistance and rigidity of the assembly is.
- the sound emission to the environment is due to the damping material, e.g. Prevents rubber on which the metal band is arranged.
- the wear resistance is achieved with the help of the metal band arranged on the damping material.
- the pressure bar of a mechanical printer, e.g. a dot matrix printer used.
- the pressure beam consists of a damping material 10 which e.g. consists of good damping rubber or plastic, and a metal band 12 arranged on the damping material 10, e.g. consists of a thin hardened steel band.
- the steel strip 12 can be vulcanized onto the damping material 10.
- the assembly 10, 12 is on a support block 14 which, for. B. consists of aluminum, arranged.
- the support block 14 can contain a groove 16 into which the structural unit 10, 12 is inserted.
- the noise damping is achieved with the aid of the damping material 10, by means of which the transmission of the sound vibrations to the support block 14 is largely prevented. It also prevents the steel strip from vibrating itself and thus making noise in the air.
- Fig. 2 shows the arrangement from the front.
- the support block 14 can be attached to a part of the device housing 18 at both ends. The figure only shows that one end is attached to the device housing 18.
- the carrier block 14 is correspondingly arranged on the other end of the device housing. While the damping material 10 is led to the device housing 18, this is not the case with the metal band 12. Here there is an intermediate space 20 between the device housing 18 and the end of the steel strip 12, by means of which it is prevented that sound vibrations can reach the device housing 18 from the metal strip 12.
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Vibration Prevention Devices (AREA)
- Handling Of Sheets (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine lärmgedämpfte Baueinheit eines Gerätes, insbesondere des Druckbalkens eines mechanischen Druckers, auf die lärmverursachende mechanische Kräfte einwirken.The invention relates to a noise-damped structural unit of a device, in particular the pressure bar of a mechanical printer, on which noise-causing mechanical forces act.
Geräte wie mechanische Drucker, Schreibmaschinen usw., die im Bürobetrieb verwendet werden, müssen zur Verringerung der Umweltbelastung lärmgedämpft werden. Dazu werden sie z. B. im Lärmgedämpfte Gehäuse angeordnet. Derartige Lösungen sind sehr aufwendig und sind für die Lärmbedämpfung für solche Geräte wenig geeignet, bei denen z.B. Papierblätter oder Papierbahnen aus dem Gerät herausgeführt werden. Es ist weiterhin möglich, dass nur die Teile des Gerätes, von denen der unerwünschte Lärm ausgeht, mittels zwischen dem zu bedämpfenden Geräteteil und dem ortsfesten Gerätegestell zwischen geschalteter Dämpfungselemente bedämpft werden. Die Folge ist, dass die Verschleissfestigkeit dieser Teile gemindert wird.Devices such as mechanical printers, typewriters, etc., which are used in office operations, must be silenced to reduce the environmental impact. For this, they are e.g. B. arranged in the noise-damped housing. Such solutions are very complex and are not very suitable for noise reduction for devices in which e.g. Paper sheets or paper webs are led out of the device. It is also possible that only the parts of the device from which the unwanted noise emanates are damped by means of between the device part to be damped and the stationary device frame between switched damping elements. The result is that the wear resistance of these parts is reduced.
Die der Erfindung zugrunde liegende Aufgabe besteht darin, eine lärmgedämpfte Baueinheit eines Gerätes, insbesondere des Druckbalkens eines mechanischen Druckers, auf die lärmverursachende mechanische Kräfte einwirken, derart auszuführen, dass bei grosser Lärmbedämpfung die Verschleissfestigkeit erhalten bleibt. Diese Aufgabe wird dadurch gelöst, dass die Baueinheit aus einem in einem Trägerblock angeordneten Dämpfungsmaterial und einem auf dem Dämpfungsmaterial angeordneten nicht mit dem Trägerblock direkt in Verbindung stehenden Metallband besteht, auf das die mechanischen Kräfte einwirken.The object on which the invention is based is to implement a noise-damped structural unit of a device, in particular the pressure bar of a mechanical printer, on which mechanical forces which cause noise are to be carried out in such a way that the wear resistance is maintained with high noise damping. This object is achieved in that the structural unit consists of a damping material arranged in a carrier block and a metal strip which is arranged on the damping material and is not directly connected to the carrier block and on which the mechanical forces act.
Der Trägerblock kann zweckmässigerweise an dem Gerätegehäuse befestigt sein. Dabei muss dafür gesorgt werden, dass das Metallband nicht mit dem Gerätegehäuse direkt verbunden wird.The support block can expediently be attached to the device housing. It must be ensured that the metal band is not connected directly to the device housing.
Bei Druckern, z.B. Nadeldruckern, besteht das Metallband zweckmässigerweise aus Stahl, um den Verschleiss möglichst gering zu halten.For printers, e.g. In the case of dot matrix printers, the metal strip is expediently made of steel in order to keep the wear as low as possible.
Der Vorteil der Erfindung besteht insbesondere darin, dass die Lärmdämpfung und Verschleissfestigkeit der Baueinheit mit geringstem preislichen Aufwand erreicht wird, wobei nur ein sehr geringer Luftschall an die Umgebung und ein sehr geringer Körperschall an das Gerätegehäuse abgegeben wird, die Verschleissfestigkeit und Steifigkeit der Baueinheit dagegen gewährleistet ist. Die Schallabgabe an die Umgebung wird durch das Dämpfungsmaterial, z.B. Gummi, verhindert, auf dem das Metallband angeordnet ist. Die Verschleissfestigkeit wird mit Hilfe des auf dem Dämpfungsmaterial angeordneten Metallbandes erreicht.The advantage of the invention is, in particular, that the noise reduction and wear resistance of the assembly are achieved with the least cost, with only a very small amount of airborne noise being emitted to the environment and a very low structure-borne noise to the device housing, which, on the other hand, ensures the wear resistance and rigidity of the assembly is. The sound emission to the environment is due to the damping material, e.g. Prevents rubber on which the metal band is arranged. The wear resistance is achieved with the help of the metal band arranged on the damping material.
Anhand eines Ausführungsbeispiels wird die Erfindung weiter erläutert. Es zeigen:
- Fig. 1 einen Schnitt durch die Baueinheit mit Trägerblock, und
- Fig. 2 ein Teil der Vorderansicht der Baueinheit mit Trägerblock.
- Fig. 1 shows a section through the assembly with support block, and
- Fig. 2 shows a part of the front view of the assembly with support block.
Im Ausführungsbeispiel wird als Baueinheit der Druckbalken eines mechanischen Druckers, z.B. eines Nadeldruckers, verwendet. Der Druckbalken besteht dabei aus einem Dämpfungsmaterial 10, das z.B. aus gut dämpfendem Gummi oder aus Kunststoff besteht, und aus einem auf dem Dämpfungsmaterial 10 angeordneten Metallband 12, das z.B. aus einem dünnen gehärteten Stahlband besteht. Das Stahlband 12 kann auf dem Dämpfungsmaterial 10 aufvulkanisiert sein. Die Baueinheit 10,12 ist an einem Trägerblock 14, der z. B. aus Aluminium besteht, angeordnet. Dazu kann der Trägerblock 14 eine Nut 16 enthalten, in die die Baueinheit 10, 12 eingefügt ist.In the exemplary embodiment, the pressure bar of a mechanical printer, e.g. a dot matrix printer used. The pressure beam consists of a damping
Auf das Stahlband 12 des Druckbalkens 10,12 wirken dann die mechanischen Kräfte ein, durch die der unerwünschte Lärm erzeugt wird. Bei einem Nadeldrucker wirken auf das Stahlband 12 z.B. die Nadeln des Druckkopfes ein. Die Lärmdämpfung wird mit Hilfe des Dämpfungsmaterials 10 erreicht, durch das die Übertragung der Schallschwingungen auf den Trägerblock 14 weitgehend unterbunden wird. Weiterhin wird verhindert, dass das Stahlband selbst schwingen kann und damit an die Luft Lärm abgeben kann.The mechanical forces, by which the undesired noise is generated, then act on the
Die Fig. 2 zeigt die Anordnung von der Vorderseite. Der Trägerblock 14 kann an seinen beiden Enden an einem Teil des Gerätegehäuses 18 befestigt sein. In Figur ist nur dargestellt, dass das eine Ende am Gerätegehäuse 18 befestigt ist. Der Trägerblock 14 ist auf seinem anderen Ende entsprechend an dem Gerätegehäuse angeordnet. Während das Dämpfungsmaterial 10 bis zum Gerätegehäuse 18 geführt ist, ist dies beim Metallband 12 nicht der Fall. Hier besteht zwischen dem Gerätegehäuse 18 und dem Ende des Stahlbandes 12 ein Zwischenraum 20, durch den verhindert wird, dass Schallschwingungen vom Metallband 12 zum Gerätegehäuse 18 gelangen können.Fig. 2 shows the arrangement from the front. The
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80107130T ATE4182T1 (en) | 1979-11-22 | 1980-11-17 | NOISE REDUCED UNIT OF A DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792947111 DE2947111A1 (en) | 1979-11-22 | 1979-11-22 | NOISE-DAMPED ASSEMBLY OF A DEVICE |
DE2947111 | 1979-11-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0029570A1 EP0029570A1 (en) | 1981-06-03 |
EP0029570B1 true EP0029570B1 (en) | 1983-07-20 |
Family
ID=6086630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80107130A Expired EP0029570B1 (en) | 1979-11-22 | 1980-11-17 | Sound absorbent module in an appliance |
Country Status (4)
Country | Link |
---|---|
US (1) | US4318452A (en) |
EP (1) | EP0029570B1 (en) |
AT (1) | ATE4182T1 (en) |
DE (1) | DE2947111A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4597682A (en) * | 1984-11-13 | 1986-07-01 | Reflective Technology, Inc. | Impact print bar assembly |
DE3538762A1 (en) * | 1985-10-31 | 1987-05-14 | Mannesmann Ag | PRINTER, IN PARTICULAR. NEEDLE DESIGN MATRIX PRINTER |
US4929106A (en) * | 1988-10-12 | 1990-05-29 | Pitney Bowes Inc. | Platen module |
DE3940776C1 (en) * | 1989-12-06 | 1991-09-12 | Mannesmann Ag, 4000 Duesseldorf, De | |
IT1239396B (en) * | 1990-03-20 | 1993-10-20 | Printax | PORTABLE PRINTER EQUIPMENT |
US5174671A (en) * | 1991-10-28 | 1992-12-29 | Smith Corona Corporation | Printing mechanism with print hammer having noise dampener |
IT1276494B1 (en) * | 1995-07-12 | 1997-10-31 | Olivetti & Co Spa | IMPACT PRINTER WITH SIGNABLE CONTRAST BAR |
JP2996918B2 (en) * | 1996-06-18 | 2000-01-11 | インターナショナル・ビジネス・マシーンズ・コーポレイション | Platen and printing device |
US6036380A (en) * | 1997-02-20 | 2000-03-14 | Encad, Inc. | Printer having a plastic platen |
US6244768B1 (en) * | 1999-03-02 | 2001-06-12 | Printronix, Inc. | Resilient elastomeric line printer platen having outer layer of hard material |
JP4756730B2 (en) * | 2000-09-07 | 2011-08-24 | 東芝テック株式会社 | Stamp stand support device |
US6583803B2 (en) | 2001-01-29 | 2003-06-24 | Zih Corporation | Thermal printer with sacrificial member |
US7027077B2 (en) * | 2003-02-24 | 2006-04-11 | Polaroid Corporation | Platen assembly for thermal printer |
DE102005023379B4 (en) * | 2005-05-17 | 2008-02-21 | J. Eberspächer GmbH & Co. KG | Needle printing device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1415844A (en) * | 1921-09-03 | 1922-05-09 | Mulock William Redford | Noise-reducing typewriter platen |
DE2437454B2 (en) * | 1974-08-03 | 1976-12-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | PRINTING PLATFORM FOR PRINTING UNITS |
JPS5395707A (en) * | 1977-02-01 | 1978-08-22 | Kokusai Denshin Denwa Co Ltd | Impact receiving mechanism for typewriter |
IT1091281B (en) * | 1977-10-19 | 1985-07-06 | Olivetti & Co Spa | CONTRAST ORGAN FOR AN IMPACT PRINTER |
-
1979
- 1979-11-22 DE DE19792947111 patent/DE2947111A1/en not_active Ceased
-
1980
- 1980-09-25 US US06/190,723 patent/US4318452A/en not_active Expired - Lifetime
- 1980-11-17 EP EP80107130A patent/EP0029570B1/en not_active Expired
- 1980-11-17 AT AT80107130T patent/ATE4182T1/en active
Also Published As
Publication number | Publication date |
---|---|
ATE4182T1 (en) | 1983-08-15 |
DE2947111A1 (en) | 1981-05-27 |
EP0029570A1 (en) | 1981-06-03 |
US4318452A (en) | 1982-03-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0029570B1 (en) | Sound absorbent module in an appliance | |
DE3009001C2 (en) | Cover for the writing area of printers, typewriters or devices of a similar type | |
DD207561C4 (en) | VIBRATION TILES AND USE THEREOF | |
EP0221837B1 (en) | Platen | |
DE2928233C2 (en) | Device for damping the noise emanating from a pressure beam of a printer | |
EP0103101A2 (en) | Device for reducing the bending vibrations of a printing cylinder caused by rolling over the groove | |
WO2009053166A1 (en) | Tension and guide rail for chain drives | |
DE2159158C3 (en) | Internal combustion engine with sound-absorbing shells attached to the machine housing at a distance | |
DE60219287T2 (en) | CUTTING BOLT WITH MUFFLING FEED TUBE | |
DE2127685A1 (en) | Device for damping pressure oscillations | |
DE1268157B (en) | Device for noise dampening of memory-controlled typewriters | |
DE2253470B2 (en) | PRINTER HEAD ASSEMBLY FOR MOSAIC PRINTER | |
DE102005023379B4 (en) | Needle printing device | |
DE69221788T2 (en) | Hydraulic hammer | |
DE68910261T2 (en) | Pen holder for impact printers. | |
DE2926449C2 (en) | Silencer for a hammer drill, in particular a rock drill hammer | |
DE195677C (en) | ||
DE2824451C2 (en) | Hand punching device for notching metal sheets or the like. | |
DE69202268T2 (en) | Dashboard for motor vehicles. | |
DE3603816C1 (en) | Printing hammer magnet arrangement, in particular for daisywheel typewriters | |
DE2207931C3 (en) | Car stepping mechanism for typing or similar office machines | |
EP0007454B1 (en) | Device for adapting the type impact energy in a disc printer to the contact surface area of a character | |
DE1761925A1 (en) | Type lever storage in typewriters and similar machines | |
EP1221369A1 (en) | Device for guiding sheets in printing machines | |
DE2605538A1 (en) | Needle operating unit for card punching head - has electromagnet with core which is coupled to wire end and has movement limited by stop |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT LU NL SE |
|
17P | Request for examination filed |
Effective date: 19811016 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19830720 Ref country code: NL Effective date: 19830720 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19830720 Ref country code: BE Effective date: 19830720 |
|
REF | Corresponds to: |
Ref document number: 4182 Country of ref document: AT Date of ref document: 19830815 Kind code of ref document: T |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19831130 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
EN | Fr: translation not filed | ||
26 | Opposition filed |
Opponent name: KIENZLE APPARATE GMBH Effective date: 19840203 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
RDAG | Patent revoked |
Free format text: ORIGINAL CODE: 0009271 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT REVOKED |
|
27W | Patent revoked |
Effective date: 19840601 |
|
GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: SPCF Free format text: CHSPCFIKS 49137/880815 |