DE102005006999A1 - Tensioning device for safety belt has two passage, which are formed in sealing body and separated from each other by web, extending between cable sections, and has oval cross section with half cones formed on opposite surfaces - Google Patents
Tensioning device for safety belt has two passage, which are formed in sealing body and separated from each other by web, extending between cable sections, and has oval cross section with half cones formed on opposite surfaces Download PDFInfo
- Publication number
- DE102005006999A1 DE102005006999A1 DE200510006999 DE102005006999A DE102005006999A1 DE 102005006999 A1 DE102005006999 A1 DE 102005006999A1 DE 200510006999 DE200510006999 DE 200510006999 DE 102005006999 A DE102005006999 A DE 102005006999A DE 102005006999 A1 DE102005006999 A1 DE 102005006999A1
- Authority
- DE
- Germany
- Prior art keywords
- sealing body
- piston
- rope
- tensioning device
- pressure
- 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- Withdrawn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
-
- 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
- B60R2022/1806—Anchoring devices for buckles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Die Erfindung betrifft eine Straffvorrichtung für einen Sicherheitsgurt mit einem Druckrohr zur Führung eines druckgetriebenen Kolbens sowie mit einem an dem Kolben angeschlossenen und mit einer zu straffenden Sicherheitskomponente verbundenen, aus zwei parallel zueinander verlaufenden Seilabschnitten bestehenden Doppelseil, wobei zwischen dem Kolben und dem Eintritt des Doppelseils in das Rohr ein an einen Gasgenerator angeschlossener Druckraum ausgebildet und zur Abdichtung des Druckraums zum Seileintritt ein Dichtungskörper mit zwei Durchtrittsöffnungen für die beiden Seilabschnitte des Doppelseils angeordnet ist.The The invention relates to a tensioning device for a safety belt a pressure tube for guidance a pressure-driven piston and with a connected to the piston and associated with a security component to be tightened, consisting of two parallel cable sections existing Double rope, being between the piston and the entrance of the double rope in the tube is formed a connected to a gas generator pressure chamber and for sealing the pressure chamber for cable entry a sealing body with two passages for the two cable sections of the double rope is arranged.
Eine Straffvorrichtung mit den vorgenannten Merkmalen ist in der WO 2004/002785 A1 beschrieben. In einer Ausführungsform weist die bekannte Straffvorrichtung ein Doppelseil als Verbindung zwischen der zu straffenden Sicherheitsgurtkomponente, beispielsweise einen Gurtschloss, und dem Kolben als pyrotechnisch arbeitenden Antrieb auf. Soweit das Antriebssystem auf seiner dem Kolben abgewandten Seite des Rohres zum Seileintritt hin abgedichtet sein muss, ist ein Dichtungskörper in das Rohr eingesetzt, der bereits zwei den durch den Dichtungskörper geführten Seilabschnitten des Doppelseils angepasste Durchtrittsöffnungen aufweist, die jedoch ineinander übergehen und insoweit etwa die Form einer Acht aufweisen. Bei der bekannten Straffvorrichtung ist im Inneren des Rohres ein Gasgenerator angeordnet, wobei sich der in das Rohr eingesetzte Dichtungskörper gegen den Gasgenerator beziehungsweise dessen Gehäuse abstützt und insoweit auch eine weitere Öffnung zum Hindurchführen eines Teils des Gasgeneratorgehäuses aufweist.A Straffvorrichtung with the aforementioned features is in WO 2004/002785 A1 described. In one embodiment the known tensioning device has a double rope as a connection between the seatbelt component to be tightened, for example a buckle, and the piston acting as a pyrotechnic Drive up. As far as the drive system facing away from the piston Side of the pipe must be sealed to the cable entry is a sealing body inserted into the tube, which already has two guided through the seal body cable sections the passage of the double rope has adapted passage openings, however merge and in this respect have approximately the shape of an eight. In the known tensioning device is located inside the tube a gas generator, wherein the sealing body inserted into the tube against the gas generator or its housing supported and to that extent also another opening for passing a portion of the inflator housing having.
Mit der bekannten Straffvorrichtung ist insbesondere der Nachteil verbunden, dass die Abdichtung des Systems im Bereich der das Doppelseil bildenden und durch den Dichtungskörper geführten Seilabschnitte noch unzureichend ist; ferner ist der vorbekannte Dichtungskörper lediglich bei einem innenliegenden Gasgenerator einsetzbar.With the known tensioning device is associated in particular with the disadvantage that the sealing of the system in the area of the double rope forming and through the seal body guided rope sections is still insufficient; Furthermore, the previously known sealing body is only can be used with an internal gas generator.
Der Erfindung liegt daher die Aufgabe zugrunde, bei einer Straffvorrichtung mit den gattungsgemäßen Merkmalen die Abdichtung des Antriebssystems weiter zu verbessern.Of the Invention is therefore the object of a tensioning device with the generic features to further improve the sealing of the drive system.
Die Lösung dieser Aufgabe ergibt sich einschließlich vorteilhafter Ausgestaltungen und Weiterbildungen der Erfindung aus dem Inhalt der Patentansprüche, welche dieser Beschreibung nachgestellt sind.The solution This object is achieved including advantageous embodiments and further developments of the invention from the content of the claims, which read this description.
Die Erfindung sieht in ihrem Grundgedanken vor, dass die in dem Dichtungskörper ausgebildeten zwei Durchtrittsöffnungen jeweils durch einen zwischen den Seilabschnitten verlaufenden Steg voneinander getrennt sind und der in eine im Bereich eines den Seileintritt ausbildenden Druckkörpers ausgebildete, der Form des Dichtungskörpers angepasste und zum Kolben hin offene Vertiefung eingesetzte Dichtungskörper einen ovalen Querschnitt mit auf seinen gegenüberliegenden Flächen ausgebildeten Halbkegeln zur Erzeugung eines sich in Richtung des Seileintritts verjüngenden Konus aufweist. Mit der Erfindung ist der Vorteil verbunden, dass aufgrund des zwischen den Seilabschnitten des Doppelseils angeordneten Steges nunmehr die Seilabschnitte im Bereich des Doppelseils gegeneinander abgedichtet sind und somit die Abdichtung des Systems insgesamt deutlich verbessert ist. Soweit der Dichtungskörper in eine im Bereich eines den Seileintritt ausbildenden Druckkörpers ausgebildete Vertiefung eingesetzt wird, wird aufgrund der besonderen Formgebung des Dichtungskörpers dieser Dichtungskörper in die Vertiefung gepresst und legt sich dadurch dicht gegen die Wandungen des den Seileintritt ausbildenden Druckkörpers an. Hierzu ist die konische Ausbildung eines Dichtungskörpers mit der Durchführung eines einzelnen Seils bei einer Straffvorrichtung aus der GB-A-2 390 570 bekannt.The The invention provides in its basic idea that the two formed in the seal body Through openings each by a running between the rope sections web are separated from each other and in one in the area of the rope entry forming pressure hull trained, adapted to the shape of the seal body and the piston towards open recess inserted sealing body an oval cross-section with on his opposite surfaces trained half cones for generating a towards the rope entry tapering Cone. The invention has the advantage that due to the arranged between the cable sections of the double rope Now bridge the rope sections in the region of the double rope against each other are sealed and thus the sealing of the system as a whole is significantly improved. As far as the seal body in a in the range of formed the rope entry forming pressure hull recess is used, due to the special shape of the seal body of this Sealing body in pressed the recess and thereby puts itself tight against the walls of the rope entry forming pressure hull. For this is the conical Formation of a seal body with the implementation of a single rope in a tensioning device from GB-A-2 390 570 known.
Nach einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass der ovale Dichtungskörper an seinen äußeren Längsflächen sich in Richtung des Seileintritts konisch verjüngt. Ebenso kann vorgesehen sein, dass der ovale Dichtungskörper an seinen äußeren Längsflächen sich in Richtung des Kolbens konisch verjüngt.To an embodiment the invention is provided that the oval sealing body its outer longitudinal surfaces itself tapered conically in the direction of the rope entry. Likewise can be provided be that the oval seal body on its outer longitudinal surfaces itself tapered conically in the direction of the piston.
Nach einem Ausführungsbeispiel der Erfindung kann die jeweils ausgebildete Konizität an dem Dichtungskörper nur über einen Teil seiner Längserstreckung ausgebildet sein.To an embodiment the invention, the respectively formed conicity of the seal body only over a Part of its longitudinal extension be educated.
Nach einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass an dem Dichtungskörper jeweils über einen Teil seiner Längserstreckung sowohl eine Konizität in Richtung des Seileintrittes als auch eine Konizität in Richtung des Kolbens ausgebildet ist.To an embodiment the invention is provided that on the sealing body in each case via a Part of its longitudinal extension both a conicity in the direction of the rope entry as well as a taper in the direction of the piston is formed.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung wiedergegeben, welches nachstehend beschrieben ist. Es zeigen:In the drawing is an embodiment of Invention, which is described below. It demonstrate:
Die
aus
Wie
sich aus
Auf
der dem Kolben
Wie
sich aus
Somit
wird durch das Einsetzen des Dichtungskörpers
Wenn
der Gasgenerator
Die in der vorstehenden Beschreibung, den Patentansprüchen, der Zusammenfassung und der Zeichnung offenbarten Merkmale des Gegenstandes dieser Unterlagen können einzeln als auch in beliebigen Kombinationen untereinander für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The in the above description, the claims, the Summary and the drawing disclosed features of the subject matter of this Documents can individually and in any combination with each other for realization be essential to the invention in its various embodiments.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510006999 DE102005006999A1 (en) | 2005-02-16 | 2005-02-16 | Tensioning device for safety belt has two passage, which are formed in sealing body and separated from each other by web, extending between cable sections, and has oval cross section with half cones formed on opposite surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510006999 DE102005006999A1 (en) | 2005-02-16 | 2005-02-16 | Tensioning device for safety belt has two passage, which are formed in sealing body and separated from each other by web, extending between cable sections, and has oval cross section with half cones formed on opposite surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102005006999A1 true DE102005006999A1 (en) | 2006-08-17 |
Family
ID=36746068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200510006999 Withdrawn DE102005006999A1 (en) | 2005-02-16 | 2005-02-16 | Tensioning device for safety belt has two passage, which are formed in sealing body and separated from each other by web, extending between cable sections, and has oval cross section with half cones formed on opposite surfaces |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102005006999A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007046715B3 (en) * | 2007-09-28 | 2009-02-12 | Autoliv Development Ab | Tightening device i.e. buckle tightener, for safety belt, has sealing provided for sealing pressure chamber against cable that is guided through opening, which is formed in intermediate wall that separates chamber against gas source |
| DE102007046726B3 (en) * | 2007-09-28 | 2009-02-12 | Autoliv Development Ab | Tensioning device for safety belt, has close fitting sealing collar is arranged opposite to inner wall of tensioning tube into pressure chamber projecting sealing lug and sealing rim arranged in one-piece formation at collar |
| DE102021125766A1 (en) | 2021-10-05 | 2023-04-06 | Autoliv Development Ab | Tensioning device for a safety belt device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004002785A1 (en) * | 2002-06-26 | 2004-01-08 | Autoliv Development Ab | Tensioning device comprising a sealed gas generator housing |
| GB2390577A (en) * | 2002-06-06 | 2004-01-14 | Autoliv Dev | Seat belt pre-tensioner seal arrangement |
-
2005
- 2005-02-16 DE DE200510006999 patent/DE102005006999A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2390577A (en) * | 2002-06-06 | 2004-01-14 | Autoliv Dev | Seat belt pre-tensioner seal arrangement |
| WO2004002785A1 (en) * | 2002-06-26 | 2004-01-08 | Autoliv Development Ab | Tensioning device comprising a sealed gas generator housing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007046715B3 (en) * | 2007-09-28 | 2009-02-12 | Autoliv Development Ab | Tightening device i.e. buckle tightener, for safety belt, has sealing provided for sealing pressure chamber against cable that is guided through opening, which is formed in intermediate wall that separates chamber against gas source |
| DE102007046726B3 (en) * | 2007-09-28 | 2009-02-12 | Autoliv Development Ab | Tensioning device for safety belt, has close fitting sealing collar is arranged opposite to inner wall of tensioning tube into pressure chamber projecting sealing lug and sealing rim arranged in one-piece formation at collar |
| DE102021125766A1 (en) | 2021-10-05 | 2023-04-06 | Autoliv Development Ab | Tensioning device for a safety belt device |
| DE102021125766B4 (en) | 2021-10-05 | 2024-02-29 | Autoliv Development Ab | Tensioner for a seat belt device and seat belt device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8130 | Withdrawal |