DE10231064B4 - rotary damper - Google Patents
rotary damper Download PDFInfo
- Publication number
- DE10231064B4 DE10231064B4 DE10231064A DE10231064A DE10231064B4 DE 10231064 B4 DE10231064 B4 DE 10231064B4 DE 10231064 A DE10231064 A DE 10231064A DE 10231064 A DE10231064 A DE 10231064A DE 10231064 B4 DE10231064 B4 DE 10231064B4
- Authority
- DE
- Germany
- Prior art keywords
- working space
- rotary damper
- damping
- housing
- damper according
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/12—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/341—Belt retractors, e.g. reels comprising energy-absorbing means
- B60R22/3413—Belt retractors, e.g. reels comprising energy-absorbing means operating between belt reel and retractor frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
- B60R2022/282—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using fluids or vico-elastic materials
Abstract
Drehdämpfer zur
Dämpfung
einer Drehbewegung, insbesondere zur Dämpfung der Drehbewegung einer
Gurtwelle in einem Sicherheitsgurt-Aufroller,
a. mit einem
Gehäuse
(2), das einen mit einem Dämpfungs-Medium (33) gefüllten Arbeitsraum
(26) begrenzt,
b. mit einer in dem Gehäuse (2) um eine Drehachse (9) drehbar
gelagerten, mit einem zu dämpfenden
Drehmoment beaufschlagbaren Welle (8),
c. mit mindestens einer
ersten Trennwand (24; 24'; 24'', 42) zur Unterteilung des Arbeitsraumes
(26) in einen ersten Teil-Arbeitsraum
(27) und mindestens einen zweiten Teil-Arbeitsraum (28; 28; 28, 43),
d.
wobei der erste Teil-Arbeitsraum (27) und der mindestens zweite
Teil-Arbeitsraum (28; 28; 28, 43) durch mindestens eine Verbindungs-Öffnung (25;
25', 25) miteinander verbunden sind, und
e. mit mit der Welle
(8) verbundenen, in dem Arbeitsraum (26) angeordneten, als Schaufeln
(18) ausgebildeten Konvektions-Elementen
zur Erzeugung von Konvektion in dem Dämpfungs-Medium (33),
f. wobei die erste
Trennwand (24; 24'; 24'', 42) ringzylindrisch ausgebildet ist, und...Rotary damper for damping a rotational movement, in particular for damping the rotational movement of a belt shaft in a seatbelt retractor,
a. with a housing (2) which delimits a working space (26) filled with a damping medium (33),
b. with a shaft (8) rotatably mounted in the housing (2) about an axis of rotation (9) and acted upon by a torque to be damped,
c. with at least one first dividing wall (24, 24 ', 24 ", 42) for subdividing the working space (26) into a first part working space (27) and at least one second part working space (28, 28, 28, 43),
d. wherein the first part working space (27) and the at least second part working space (28; 28; 28,43) are interconnected by at least one connection opening (25; 25 ', 25), and
e. with convection elements connected to the shaft (8) arranged in the working space (26) and designed as blades (18) for generating convection in the damping medium (33),
f. wherein the first partition wall (24; 24 ';24'', 42) is annularly cylindrical, and ...
Description
Die Erfindung betrifft einen Drehdämpfer zur Dämpfung einer Drehbewegung, insbesondere zur Dämpfung der Drehbewegung einer Gurtwelle in einem Sicherheitsgurt-Aufroller für Kraftfahrzeuge.The The invention relates to a rotary damper for damping a rotational movement, in particular for damping the rotational movement of a Belt shaft in a seat belt retractor for motor vehicles.
Die Dämpfung von Drehbewegungen in Sicherheitsgurt-Aufrollern in Kraftfahrzeugen ist seit langem ein Problem. Zahlreiche der bekannten Dämpfer besitzen die Eigenschaft, daß sie lediglich Drehbewegungen um einen Gesamt-Drehwinkel von kleiner als 360° dämpfen.The damping of rotational movements in safety belt retractors in motor vehicles has been a problem for a long time. Many of the known damper possess the property that they only rotational movements by a total rotation angle of less dampen as 360 °.
Aus
der
Die
Ein
aus der
In
der
Der Erfindung liegt die Aufgabe zugrunde, einen möglichst einfachen Drehdämpfer zu schaffen, der eine Drehbewegung um einen beliebigen Drehwinkel möglichst gleichmäßig dämpft.Of the Invention is based on the object as simple as possible a rotary damper create, if possible, a rotation about any angle of rotation evenly attenuates.
Die Aufgabe wird durch die Merkmale des Anspruches 1 gelöst. Der Kern der Erfindung besteht darin, in einem Gehäuse zwei konzentrisch zueinander angeordnete Arbeitsräume vorzusehen, die eine hochviskose Flüssigkeit aufnehmen und durch Verbindungs-Öffnungen miteinander verbunden sind. Durch Konvektions-Elemente, die mit einer drehbar gelagerten Welle verbunden sind, wird das zu dämpfende Drehmoment in eine Bewegung des Dämpfungs-Mediums umgewandelt. Von besonderer Bedeutung für die Dämpfung sind hierbei auftretende Scherungen.The The object is solved by the features of claim 1. Of the The core of the invention consists in a housing two concentric with each other arranged workrooms provide that absorb a highly viscous liquid and through Connection openings connected to each other. By convection elements using a rotatably mounted shaft are connected, which is to be damped Torque converted into a movement of the damping medium. Of particular importance for the damping are here occurring shears.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the Dependent claims.
Zusätzliche Merkmale und Einzelheiten der Erfindung ergeben sich aus der Beschreibung von drei Ausführungsbeispielen anhand der Zeichnungen. Es zeigenadditional Features and details of the invention will become apparent from the description of three embodiments based on the drawings. Show it
Im
folgenden wird unter Bezugnahme auf die
Auf
der Welle
Der
in radialer Richtung nach innen durch den Tragkörper
Die
Wand
Im
folgenden wird die Funktionsweise des Drehdämpfers
Vorteilhaft
an dem Drehdämpfer
Im
folgenden wird unter Bezugnahme auf die
Im
folgenden wird unter Bezugnahme auf die
Der
Vorteil des Drehdämpfers
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10231064A DE10231064B4 (en) | 2001-11-14 | 2002-07-10 | rotary damper |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10155877 | 2001-11-14 | ||
DE10155877.5 | 2001-11-14 | ||
DE10231064A DE10231064B4 (en) | 2001-11-14 | 2002-07-10 | rotary damper |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10231064A1 DE10231064A1 (en) | 2003-05-22 |
DE10231064B4 true DE10231064B4 (en) | 2005-05-19 |
Family
ID=7705694
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10231079A Withdrawn DE10231079A1 (en) | 2001-11-14 | 2002-07-10 | Rotation damper for safety belt has casing filled with damping fluid, shaft and convection elements |
DE10231064A Expired - Fee Related DE10231064B4 (en) | 2001-11-14 | 2002-07-10 | rotary damper |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10231079A Withdrawn DE10231079A1 (en) | 2001-11-14 | 2002-07-10 | Rotation damper for safety belt has casing filled with damping fluid, shaft and convection elements |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE10231079A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004032172A1 (en) * | 2004-07-02 | 2006-01-19 | Suspa Holding Gmbh | Rotary damper for damping the rotary movement of a belt shaft of a safety belt winder in a vehicle comprises a housing, an operating chamber filled with a damping medium, a shaft, a convection element and a delimiting wall |
DE102005036199A1 (en) * | 2005-08-02 | 2007-02-08 | Trw Automotive Gmbh | Seat belt retractor for vehicle, has rotatably supported belt reel, rotor unit arranged inside workspace, and rotation damper arranged inside belt reel, where workspace is fillable with damping medium |
DE102005040025A1 (en) * | 2005-08-23 | 2007-03-01 | Suspa Holding Gmbh | Belt shaft rotational damper for use in safety belt roll up device in motor vehicle, has damping-medium partially filling operational space, and powder mixed with damping medium for adjusting rotational damping |
DE102006021944A1 (en) * | 2006-05-11 | 2007-11-15 | Trw Automotive Gmbh | rotary damper |
DE102006022563B4 (en) * | 2006-05-15 | 2018-11-08 | Trw Automotive Gmbh | rotary damper |
DE102006048349A1 (en) * | 2006-10-12 | 2008-04-17 | Trw Automotive Gmbh | Rotation damper for damping rotary motion of shaft, has working chamber, which is filled with damping medium and has rotating element, which is arranged in working chamber |
DE102008037134A1 (en) * | 2008-08-08 | 2010-02-11 | Fischer Automotive Systems Gmbh & Co. Kg | Rotary damper for damping of spring-actuated movement of e.g. handle in motor vehicle, has closure element movable in relation to damper element such that closure element alternatively closes or opens set of openings |
DE102009033690A1 (en) | 2009-07-17 | 2011-01-20 | Trw Automotive Gmbh | Force limiting device, particularly for belt retractor for vehicle occupant restraint system, is provided with viscous medium filled chamber and resistance body projecting into chamber |
DE102009058064A1 (en) | 2009-12-14 | 2011-06-16 | Trw Automotive Gmbh | Safety belt system with force limiter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1021103A (en) * | 1964-04-16 | 1966-02-23 | All American Eng Co | Energy absorber unit |
DE2447244A1 (en) * | 1973-10-03 | 1975-04-10 | Efdyn Corp | CONTINUOUS ROTARY DAMPING DEVICE, IN PARTICULAR ROTARY VIBRATION DAMPER |
GB1425691A (en) * | 1973-07-21 | 1976-02-18 | Dornier Gmbh | Mounting for a rotor |
EP0763671A2 (en) * | 1995-09-01 | 1997-03-19 | Illinois Tool Works Inc. | Rotary damper |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1217079A (en) * | 1968-07-22 | 1970-12-23 | Ronford Ltd | Improvements in or relating to mounting heads for cameras or like devices |
JPS63308239A (en) * | 1987-06-10 | 1988-12-15 | Sugatsune Ind Co Ltd | Multiplate type damper with adjustable braking force employed viscous fluid |
DE4244484C2 (en) * | 1992-12-30 | 2003-04-17 | Itw Ateco Gmbh | rotary damper |
JP2894596B2 (en) * | 1994-08-19 | 1999-05-24 | トックベアリング株式会社 | Rotary damper and opening / closing device for lid and the like using the damper |
DE29616399U1 (en) * | 1996-09-07 | 1996-11-28 | Itw Ateco Gmbh | Rotary damper |
DE29715912U1 (en) * | 1997-09-04 | 1997-11-06 | Schmidt Gmbh R | Damping device |
-
2002
- 2002-07-10 DE DE10231079A patent/DE10231079A1/en not_active Withdrawn
- 2002-07-10 DE DE10231064A patent/DE10231064B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1021103A (en) * | 1964-04-16 | 1966-02-23 | All American Eng Co | Energy absorber unit |
GB1425691A (en) * | 1973-07-21 | 1976-02-18 | Dornier Gmbh | Mounting for a rotor |
DE2447244A1 (en) * | 1973-10-03 | 1975-04-10 | Efdyn Corp | CONTINUOUS ROTARY DAMPING DEVICE, IN PARTICULAR ROTARY VIBRATION DAMPER |
EP0763671A2 (en) * | 1995-09-01 | 1997-03-19 | Illinois Tool Works Inc. | Rotary damper |
Also Published As
Publication number | Publication date |
---|---|
DE10231079A1 (en) | 2003-05-28 |
DE10231064A1 (en) | 2003-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110201 |