FR2402267A1 - Dispositif pour attenuer des bruits, produits dans l'environnement par des mecanismes bruyants, et realisant une evacuation simultanee de la chaleur - Google Patents
Dispositif pour attenuer des bruits, produits dans l'environnement par des mecanismes bruyants, et realisant une evacuation simultanee de la chaleurInfo
- Publication number
- FR2402267A1 FR2402267A1 FR7824791A FR7824791A FR2402267A1 FR 2402267 A1 FR2402267 A1 FR 2402267A1 FR 7824791 A FR7824791 A FR 7824791A FR 7824791 A FR7824791 A FR 7824791A FR 2402267 A1 FR2402267 A1 FR 2402267A1
- Authority
- FR
- France
- Prior art keywords
- noisy
- mechanisms
- environment
- noise produced
- simultaneous heat
- 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.)
- Granted
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
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
- B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
- B41J2/27—Actuators for print wires
- B41J2/275—Actuators for print wires of clapper type
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Impact Printers (AREA)
- Casings For Electric Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
L'invention concerne un dispositif pour atténuer des bruits, produits dans l'environnement par des mécanismes bruyants, et réalisant une évacuation simultanée de la chaleur. Le mécanisme bruyant est disposé dans un boîtier constitué par une capsule en forme de pot KA constituée en un matériau affaiblissant les bruits et par un couvercle DK fermant la capsule et constitué en un matériau affaiblissant les bruits, cependant qu'il est prévu un dispositif constitué en un matériau thermoconducteur pour évacuer hors du boîtier la chaleur développée par le mécanisme. Application notamment aux imprimantes par points.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772739886 DE2739886A1 (de) | 1977-09-05 | 1977-09-05 | Vorrichtung zur daempfung von von laermentwickelnden aggregaten an die umgebung abgegebenen geraeusche mit gleichzeitiger waermeableitung |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2402267A1 true FR2402267A1 (fr) | 1979-03-30 |
FR2402267B1 FR2402267B1 (fr) | 1980-12-19 |
Family
ID=6018124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7824791A Granted FR2402267A1 (fr) | 1977-09-05 | 1978-08-28 | Dispositif pour attenuer des bruits, produits dans l'environnement par des mecanismes bruyants, et realisant une evacuation simultanee de la chaleur |
Country Status (7)
Country | Link |
---|---|
US (1) | US4239398A (fr) |
BE (1) | BE870226A (fr) |
DE (1) | DE2739886A1 (fr) |
FR (1) | FR2402267A1 (fr) |
GB (1) | GB1564677A (fr) |
IT (1) | IT1098713B (fr) |
NL (1) | NL7806966A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0343965A2 (fr) * | 1988-05-25 | 1989-11-29 | Seiko Epson Corporation | Tête d'impression par points à impact |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9001868U1 (de) * | 1990-02-16 | 1991-06-20 | Siemens Nixdorf Informationssysteme AG, 4790 Paderborn | Kapselung für einen Nadeldruckkopf |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2152187A5 (fr) * | 1971-09-09 | 1973-04-20 | Anker Werke Ag | |
US3747735A (en) * | 1969-11-04 | 1973-07-24 | B Frick | Noise reducing covers for teleprinters and other machines |
US4033255A (en) * | 1975-11-13 | 1977-07-05 | Printronix, Inc. | Print hammer actuator for dot matrix printers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB496454A (en) * | 1938-04-05 | 1938-11-30 | Albert Walter Christian Mandel | Improvements in or relating to gas-pressure actuated percussive drills and the like |
US3770092A (en) * | 1972-02-14 | 1973-11-06 | Autotronics Inc | Wire print head |
DE2342420A1 (de) * | 1973-08-22 | 1975-03-13 | Steinmetz Krischke Systemtech | Mosaikdruckknopf |
US3860085A (en) * | 1974-02-11 | 1975-01-14 | Coast Marine Associates Inc | Sound suppression hood assembly |
US4044668A (en) * | 1975-05-16 | 1977-08-30 | Printronix, Inc. | Print hammer mechanism |
US4135830A (en) * | 1976-06-14 | 1979-01-23 | Brother Kogyo Kabushiki Kaisha | Wire printer printing head |
-
1977
- 1977-09-05 DE DE19772739886 patent/DE2739886A1/de not_active Withdrawn
-
1978
- 1978-05-18 GB GB20530/78A patent/GB1564677A/en not_active Expired
- 1978-06-28 NL NL7806966A patent/NL7806966A/xx not_active Application Discontinuation
- 1978-07-12 US US05/923,994 patent/US4239398A/en not_active Expired - Lifetime
- 1978-08-28 FR FR7824791A patent/FR2402267A1/fr active Granted
- 1978-08-30 IT IT27139/78A patent/IT1098713B/it active
- 1978-09-05 BE BE190274A patent/BE870226A/fr unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3747735A (en) * | 1969-11-04 | 1973-07-24 | B Frick | Noise reducing covers for teleprinters and other machines |
FR2152187A5 (fr) * | 1971-09-09 | 1973-04-20 | Anker Werke Ag | |
US4033255A (en) * | 1975-11-13 | 1977-07-05 | Printronix, Inc. | Print hammer actuator for dot matrix printers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0343965A2 (fr) * | 1988-05-25 | 1989-11-29 | Seiko Epson Corporation | Tête d'impression par points à impact |
EP0343965A3 (en) * | 1988-05-25 | 1990-07-11 | Seiko Epson Corporation | Impact dot printing head |
US5024543A (en) * | 1988-05-25 | 1991-06-18 | Seiko Epson Corporation | Impact dot print head |
Also Published As
Publication number | Publication date |
---|---|
US4239398A (en) | 1980-12-16 |
IT7827139A0 (it) | 1978-08-30 |
BE870226A (fr) | 1979-03-05 |
DE2739886A1 (de) | 1979-03-15 |
NL7806966A (nl) | 1979-03-07 |
FR2402267B1 (fr) | 1980-12-19 |
GB1564677A (en) | 1980-04-10 |
IT1098713B (it) | 1985-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |