DE102004008914A1 - Belt tightener for motor vehicle safety belt has inner body connected to drive device by torque support and/or chambers between inner body and inner wall of outer body designed to hold gases or liquids of propulsive charge - Google Patents
Belt tightener for motor vehicle safety belt has inner body connected to drive device by torque support and/or chambers between inner body and inner wall of outer body designed to hold gases or liquids of propulsive charge Download PDFInfo
- Publication number
- DE102004008914A1 DE102004008914A1 DE102004008914A DE102004008914A DE102004008914A1 DE 102004008914 A1 DE102004008914 A1 DE 102004008914A1 DE 102004008914 A DE102004008914 A DE 102004008914A DE 102004008914 A DE102004008914 A DE 102004008914A DE 102004008914 A1 DE102004008914 A1 DE 102004008914A1
- Authority
- DE
- Germany
- Prior art keywords
- belt
- inner body
- drive device
- liquids
- wall
- 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.)
- Ceased
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 4
- 239000007789 gas Substances 0.000 title claims description 5
- 230000001141 propulsive effect Effects 0.000 title abstract 2
- 239000003380 propellant Substances 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- 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
- B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
-
- 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
-
- 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
- B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
- B60R22/4633—Linear actuators, e.g. comprising a piston moving along reel axis and rotating along its own axis
-
- 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
- B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
- B60R2022/4642—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators the gas directly propelling a flexible driving means, e.g. a plurality of successive masses, in a tubular chamber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Die Erfindung betrifft einen Gurtstraffer für SicherheitsgurtsystemeThe invention relates a belt tensioner for safety systems
Gurtstraffer gehören zu den passiven Systemen der Insassensicherung, die häufig als Bestandteil der Sicherheitsgurtsysteme in Fahrzeugen anzutreffen sind. Sie minimieren das Verletzungsrisiko durch Straffung des Sicherheitsgurts während oder kurz vor dem Aufprall des Fahrzeugs, da die Insassen so stärker gegen ein nach vorn Schleudern zurückgehalten werden.pretensioners belong to the passive systems of occupant safety, often as Part of the seat belt systems can be found in vehicles are. They minimize the risk of injury by tightening the seat belt while or just before the impact of the vehicle, as the occupants are so stronger against retained a forward spin become.
Es
sind bereits verschiedene Systeme zur Gurtstraffung bekannt, die
eine Gurtstraffung pyrotechnisch, druckgas- oder motorgetrieben
durchführen.
Die
Der Nachteil dieser Art Gurtstraffer ist, dass sie einen komplexen Aufbau aufweisen, der viel Platz benötigt und deren Mechanismus nicht reversibel ist.Of the Disadvantage of this type belt tensioners is that they have a complex construction have a lot of space needed and whose mechanism is not reversible.
Aufgabe der Erfindung ist es deshalb, einen platzsparenden und reversiblen Gurtstraffer bereit zu stellen.task The invention is therefore a space-saving and reversible To provide belt tensioners.
Die Erfindung wird gelöst durch einen Gurtstraffer mit einem von einem äußeren Körper mit einer ungeradzahligen Anzahl von Ecken umschlossenen, mit einer Gurtpeitsche verbundenen, inneren frei drehbaren Körper mit einer geradzahligen Anzahl von Ecken, wobei der innere Körper über eine Drehmomentstütze mit einer Antriebseinrichtung verbunden ist und/oder die zwischen dem inneren Körper und der Innenwand des äußeren Körpers liegenden Kammern zur Aufnahme von Gasen oder Flüssigkeiten einer Treibladung ausgebildet sind.The Invention is solved by a belt tensioner with one of an outer body with an odd number Number of corners enclosed, connected with a belt whip, inner freely rotatable body with an even number of vertices, with the inner body over one torque arm is connected to a drive device and / or between the inner body and the inner wall of the outer body lying chambers for the absorption of gases or liquids a propellant charge are formed.
Reuleaux hat die erstmals von ihm vorgestellten Elementenpaaren, die „nicht die Eigenschaft des gegenseitigen Umschluss, sondern die allgemeine und höhere Eigenschaft der Umhüllung" besitzen (Reuleaux, F. Theoretische Kinematik. Friedrich Vieweg und Sohn, Braunschweig, 1875), als höhere Elementenpaare bezeichnet. Beispiele solcher höheren Elementenpaare sind das Kreisbogendreieck (Reuleauxdreieck) im Parallelogramm, das der Erfinder in einer anderen Erfindung als Gurtstraffer vorgestellt hat, oder die Kreisbogenlinse (Fujiwara-Linse) im gleichseitigen Dreieck. Im Sinne der vorliegenden Erfindung ist prinzipiell jeder innere Körper mit einer geradzahligen Anzahl von Ecken in Kombination mit einem äußeren Körper mit einer ungeradzahligen Anzahl von Ecken für den erfindungsgemäßen Gurtstraffer geeignet.Reuleaux has the first time introduced by him element pairs, the "not the property of mutual closure, but the general one and higher Feature of serving "(Reuleaux, F. Theoretical kinematics. Friedrich Vieweg and son, Brunswick, 1875), as higher element pairs designated. Examples of such higher Pairs of elements are the circular arc triangle (Reuleaux triangle) in the parallelogram, the inventor presented in another invention as a belt tensioner has, or the circular arc lens (Fujiwara lens) in the equilateral Triangle. For the purposes of the present invention, in principle, everyone inner body with an even number of corners in combination with an outer body with an odd number of corners for the belt tensioner according to the invention suitable.
Die Verwendung von höheren Elementenpaaren besitzt gegenüber den bekannten Gurtstraffern den Vorteil, dass die Straffung des Gurtes mit einfachen Mitteln in platzsparender Bauweise in der Gurtpeitsche, am Fahrersitz oder im Holm realisiert werden kann.The Use of higher Has element pairs opposite the known belt tensioners the advantage that the streamlining of Belt with simple means in space-saving design in the belt whip, can be realized on the driver's seat or in the spar.
Befestigt
man eine zur Straffung des Gurtes vorgesehene Gurtpeitsche in der
Ebene des inneren Körpers,
kann eine Straffung des Gurtes durch Drehung des inneren Körpers erreicht
werden. Die Drehung erfolgt bevorzugt durch einen motorischen Antrieb,
kann aber durch den besonders bevorzugten Einsatz von Treibmitteln
unterstützt
werden oder erfolgt ausschließlich
durch Treibladungen. Dieser Vorgang ist in jeder Richtung reversibel,
da keine die Bewegung des drehbaren Elementes beeinträchtigenden
Vorrichtungen, wie z.B. der radiale Anschlag der
Im Rahmen der kinematischen Umkehr ist es auch denkbar, dass nicht der innere Körper, sondern der äußere Körper die Drehbewegung durchführt. Entsprechend dieser Ausgestaltung müsste die Gurtspeitsche mit einer Ecke oder Seite des äußeren Körpers verbunden sein.in the Under the kinematic reversal, it is also conceivable that not the inner body, but the outer body the Performs rotary motion. Corresponding this configuration would have the belt whip may be connected to a corner or side of the outer body.
Im
Folgenden wird die Erfindung anhand der einzigen Zeichnung näher erläutert.
Der
Gurtstraffer besteht aus einer von einem gleichseitigen Dreieck
Nach
Aktivierung des Gurtstraffersystems erfolgt eine Drehung der Kreisbogenlinse
Die
maximal zu erreichende Gurtstraffung ist durch den Hub der Kreisbogenlinse
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004008914A DE102004008914A1 (en) | 2004-02-24 | 2004-02-24 | Belt tightener for motor vehicle safety belt has inner body connected to drive device by torque support and/or chambers between inner body and inner wall of outer body designed to hold gases or liquids of propulsive charge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004008914A DE102004008914A1 (en) | 2004-02-24 | 2004-02-24 | Belt tightener for motor vehicle safety belt has inner body connected to drive device by torque support and/or chambers between inner body and inner wall of outer body designed to hold gases or liquids of propulsive charge |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004008914A1 true DE102004008914A1 (en) | 2005-09-15 |
Family
ID=34853621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004008914A Ceased DE102004008914A1 (en) | 2004-02-24 | 2004-02-24 | Belt tightener for motor vehicle safety belt has inner body connected to drive device by torque support and/or chambers between inner body and inner wall of outer body designed to hold gases or liquids of propulsive charge |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004008914A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335284A1 (en) * | 1993-10-15 | 1995-04-20 | Hs Tech & Design | Device for rotating a winding shaft of an automatic seat belt retractor |
DE20219384U1 (en) * | 2002-09-04 | 2003-03-20 | Takata Petri Gmbh Ulm | Seat belt tensioner for a motor vehicle, has turnable spindle and draw cord with torsion rod and locking device |
-
2004
- 2004-02-24 DE DE102004008914A patent/DE102004008914A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335284A1 (en) * | 1993-10-15 | 1995-04-20 | Hs Tech & Design | Device for rotating a winding shaft of an automatic seat belt retractor |
DE20219384U1 (en) * | 2002-09-04 | 2003-03-20 | Takata Petri Gmbh Ulm | Seat belt tensioner for a motor vehicle, has turnable spindle and draw cord with torsion rod and locking device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |