DE102004045864A1 - Seatbelt tightening device, comprising piston with two differently sized piston rods - Google Patents
Seatbelt tightening device, comprising piston with two differently sized piston rods Download PDFInfo
- Publication number
- DE102004045864A1 DE102004045864A1 DE200410045864 DE102004045864A DE102004045864A1 DE 102004045864 A1 DE102004045864 A1 DE 102004045864A1 DE 200410045864 DE200410045864 DE 200410045864 DE 102004045864 A DE102004045864 A DE 102004045864A DE 102004045864 A1 DE102004045864 A1 DE 102004045864A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- piston rod
- cylinder unit
- housing
- belt
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- 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
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
- B60R22/1952—Transmission of tensioning power by cable; Return motion locking means therefor
-
- 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
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
- B60R22/1954—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type characterised by fluid actuators, e.g. pyrotechnic gas generators
- B60R22/1955—Linear actuators
-
- 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
-
- 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
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/469—Reels with means to tension the belt in an emergency by forced winding up reusable
-
- 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
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
- B60R22/1954—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type characterised by fluid actuators, e.g. pyrotechnic gas generators
- B60R22/1956—Mechanical triggering means therefor
Abstract
Description
Die Erfindung betrifft eine Kolben-Zylinder-Einheit sowie einen Gurtstraffer in einem Fahrzeug-Sicherheitsgurt-System.The The invention relates to a piston-cylinder unit and a belt tensioner in a vehicle seatbelt system.
Gurtstraffer werden in Fahrzeug-Sicherheitsgurt-Systemen verwendet, um schnell einen Abschnitt eines Sicherheitsgurtes beim Einsetzen eines Stoßimpulses zu spannen, um dadurch den Insassen durch Verringerung einer Vorwärtsbewegung sicherer zurückzuhalten. Die Betätigung der Gurtstraffer erfolgt überwiegend durch pyrotechnische Systeme, die bei einem Aufprall zur Explosion gebracht werden. Nachteilig hieran ist, dass derartige Systeme inhärent irreversibel arbeiten. Darüber hinaus gestatten derartige Systeme keine Gurtkraftbegrenzung, wenn der Insasse bei dem Aufprall in den Gurt geschleudert wird.pretensioners are used in vehicle seat belt systems to move quickly a portion of a seat belt when inserting a shock pulse to tension, thereby the occupant by reducing forward movement safer withhold. The operation The belt tensioner is predominantly through pyrotechnic systems that explode in an impact to be brought. The disadvantage of this is that such systems are inherently irreversible work. About that In addition, such systems do not allow belt force limit when the occupant is thrown into the belt on impact.
Der Erfindung liegt die Aufgabe zugrunde, einen für den Insassen sichereren und einfacher herzustellenden Gurtstraffer zu schaffen.Of the Invention is based on the object, a safer for the occupants and To create easier to produce belt tensioners.
Die Aufgabe wird durch die Merkmale der unabhängigen Ansprüche 1 und 7 gelöst. Der Kern der Erfindung besteht darin, eine Kolben-Zylinder-Einheit mit zwei Kolbenstangen verschiedenen Querschnitts und einem kompressiblen Dämpfungs-Medium vorzusehen. Die Kolben-Zylinder-Einheit befindet sich in einer vorgespannten Ausgangsposition. Wird sie ausgelöst, so schießt der Kolben in eine Ausschub-Richtung und zieht den Sicherheitsgurt zurück. Kommt es zu einem starken Zug auf den Sicherheitsgurt durch einen Aufprall des Insassen auf diesen, so wird der Kolben entgegen der Ausschub-Richtung gedämpft verschoben, wodurch eine Begrenzung der auf den Gurt wirkenden Kraft erzielt wird.The The object is achieved by the features of independent claims 1 and 7 solved. The essence of the invention is a piston-cylinder unit with two Piston rods of different cross-section and a compressible Damping medium provided. The piston-cylinder unit is in a preloaded starting position. If it is triggered, the piston shoots in a Ausschub direction and pulls the seat belt back. comes It causes a strong pull on the seatbelt by an impact the occupant on this, the piston is opposite to the Ausschub-direction muted shifted, thereby limiting the force acting on the belt is achieved.
Weitere vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.Further advantageous embodiments will become apparent from the dependent claims.
Zusätzliche Merkmale und Einzelheiten der Erfindung ergeben sich aus der Beschreibung zweier Ausführungsbeispiele anhand der Zeichnung. Es zeigenadditional Features and details of the invention will become apparent from the description two embodiments based on the drawing. Show it
Im
Folgenden wird unter Bezugnahme auf die
Der
Kolben
An
der Außenseite
des Gehäuses
Als
Dämpfungs-Medium
Im
Folgenden wird die Funktionsweise der Kolben-Zylinder-Einheit
Im
Folgenden wird unter Bezugnahme auf die
Im
Folgenden wird die Funktionsweise des Gurtstraffers
Im
Folgenden wird unter Bezugnahme auf die
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410045864 DE102004045864A1 (en) | 2004-09-20 | 2004-09-20 | Seatbelt tightening device, comprising piston with two differently sized piston rods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410045864 DE102004045864A1 (en) | 2004-09-20 | 2004-09-20 | Seatbelt tightening device, comprising piston with two differently sized piston rods |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004045864A1 true DE102004045864A1 (en) | 2006-03-23 |
Family
ID=36001673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410045864 Withdrawn DE102004045864A1 (en) | 2004-09-20 | 2004-09-20 | Seatbelt tightening device, comprising piston with two differently sized piston rods |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004045864A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008005573A1 (en) | 2007-01-23 | 2008-07-24 | C. Rob. Hammerstein Gmbh & Co. Kg | Method for operation of motor vehicle seat in motor vehicle, involves connecting controller with crash sensor which actuates crash sensor in case of accident |
CN102303580A (en) * | 2011-06-28 | 2012-01-04 | 常州博万达汽车安全设备有限公司 | Pre-tensioner used for safety seat belt |
CN103171515A (en) * | 2013-03-01 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Hydraulic overflow energy absorption type safety belt |
CN106735900A (en) * | 2016-11-11 | 2017-05-31 | 北京首钢冷轧薄板有限公司 | A kind of method of laser welding |
CN116538171A (en) * | 2023-07-03 | 2023-08-04 | 南安市泉信液压机械有限公司 | Hydraulic cylinder locking mechanism |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3718117A1 (en) * | 1987-05-29 | 1988-12-15 | Karl Hermann Essler | Belt-tightening device for a vehicle safety belt |
DE20206339U1 (en) * | 2002-04-22 | 2002-07-25 | Trw Repa Gmbh | Linear drive for tightening a seat belt |
-
2004
- 2004-09-20 DE DE200410045864 patent/DE102004045864A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3718117A1 (en) * | 1987-05-29 | 1988-12-15 | Karl Hermann Essler | Belt-tightening device for a vehicle safety belt |
DE20206339U1 (en) * | 2002-04-22 | 2002-07-25 | Trw Repa Gmbh | Linear drive for tightening a seat belt |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008005573A1 (en) | 2007-01-23 | 2008-07-24 | C. Rob. Hammerstein Gmbh & Co. Kg | Method for operation of motor vehicle seat in motor vehicle, involves connecting controller with crash sensor which actuates crash sensor in case of accident |
CN102303580A (en) * | 2011-06-28 | 2012-01-04 | 常州博万达汽车安全设备有限公司 | Pre-tensioner used for safety seat belt |
CN103171515A (en) * | 2013-03-01 | 2013-06-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Hydraulic overflow energy absorption type safety belt |
CN106735900A (en) * | 2016-11-11 | 2017-05-31 | 北京首钢冷轧薄板有限公司 | A kind of method of laser welding |
CN116538171A (en) * | 2023-07-03 | 2023-08-04 | 南安市泉信液压机械有限公司 | Hydraulic cylinder locking mechanism |
CN116538171B (en) * | 2023-07-03 | 2023-09-15 | 南安市泉信液压机械有限公司 | Hydraulic cylinder locking mechanism |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |