DE102004002424A1 - Safety belt wind up roller for motor vehicle occupants has single integrated housing for wind up spring and belt drive - Google Patents

Safety belt wind up roller for motor vehicle occupants has single integrated housing for wind up spring and belt drive Download PDF

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Publication number
DE102004002424A1
DE102004002424A1 DE102004002424A DE102004002424A DE102004002424A1 DE 102004002424 A1 DE102004002424 A1 DE 102004002424A1 DE 102004002424 A DE102004002424 A DE 102004002424A DE 102004002424 A DE102004002424 A DE 102004002424A DE 102004002424 A1 DE102004002424 A1 DE 102004002424A1
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Germany
Prior art keywords
belt
housing
tensioner drive
spring
retractor according
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Granted
Application number
DE102004002424A
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German (de)
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DE102004002424B4 (en
Inventor
Franz Wier
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ZF Automotive Germany GmbH
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TRW Occupant Restraint Systems GmbH
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Application filed by TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Priority to DE102004002424.3A priority Critical patent/DE102004002424B4/en
Publication of DE102004002424A1 publication Critical patent/DE102004002424A1/en
Application granted granted Critical
Publication of DE102004002424B4 publication Critical patent/DE102004002424B4/en
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Expired - Fee Related legal-status Critical Current

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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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

A safety belt wind-up roller for motor vehicle occupants comprises a belt spool turning in a frame, a wind-up spring in a housing (24) and a belt drive (16,18) in a housing (22). The spring housing and belt drive housing are combined in a single integrated housing.

Description

Die Erfindung betrifft einen Gurtaufroller mit einem Rahmen, einer Gurtspule zur Aufgabe eines Sicherheitsgurtes, die in dem Rahmen drehbar gelagert ist, einer Aufwickelfeder, welche die Gurtspule in der Sicherheitsgurt-Aufwickelrichtung beaufschlagt, einem Federgehäuse, welches die Aufwickelfeder umgibt, einem Gurtstrafferantrieb, der die Gurtspule in der Sicherheitsgurt-Aufwickelrichtung beaufschlagen kann, und einem Gurtstrafferantrieb-Gehäuse.The The invention relates to a belt retractor with a frame, a belt reel for abandonment of a safety belt which is rotatably mounted in the frame is, a wind-up spring, which the belt reel in the seat belt winding direction acted upon, a spring housing, which surrounds the winding spring, a belt tensioner drive, the act on the belt reel in the seatbelt take-up direction can, and a belt tensioner drive housing.

Der Gurtaufroller dient in an sich bekannter Weise dazu, einem Fahrzeuginsassen einen Sicherheitsgurt bereitzustellen. Der Gurtstrafferantrieb dient dazu, die Gurtspule im Bedarfsfall in der Aufwickelrichtung des Sicherheitsgurtes zu drehen, um die sogenannte Gurtlose aus dem Sicherheitsgurt zu beseitigen.Of the Belt retractor is used in a conventional manner to a vehicle occupant to provide a safety belt. The belt tensioner drive is used In addition, the belt reel in case of need in the winding direction of the To turn the seat belt to the so-called belt slack out of the Safety belt to eliminate.

Die Aufgabe der Erfindung besteht darin, einen dichten und leichten Gurtaufroller bei geringen Kosten zu schaffen.The The object of the invention is a dense and lightweight Belt retractor at low cost to create.

Zur Lösung dieser Aufgabe ist erfindungsgemäß bei einem Gurtaufroller der eingangs genannten Art vorgesehen, daß das Federgehäuse und das Gurtstrafferantrieb-Gehäuse einstückig miteinander als integrales Gehäuse ausgeführt sind.to solution This object is achieved according to the invention at a Belt retractor of the type mentioned provided that the spring housing and the belt tensioner drive housing one piece together as an integral housing accomplished are.

Vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen.advantageous embodiments The invention will become apparent from the dependent claims.

Die Erfindung wird nachfolgend anhand einer bevorzugten Ausführungsform beschrieben, die in den beigefügten Zeichnungen dargestellt ist. In diesen zeigen:The Invention will be described below with reference to a preferred embodiment described in the attached Drawings is shown. In these show:

1 eine perspektivische Explosionsansicht eines erfindungsgemäßen Gurtaufrollers; 1 an exploded perspective view of a belt retractor according to the invention;

2 eine Seitenansicht des Gurtaufrollers; 2 a side view of the belt retractor;

3 eine Unteransicht des Gurtaufrollers; 3 a bottom view of the belt retractor;

4 einen Schnitt entlang der Ebene N-N von 2; und 4 a section along the plane NN of 2 ; and

5 eine perspektivische Explosionsansicht einer Variante eines erfindungsgemäßen Gurtaufrollers. 5 an exploded perspective view of a variant of a belt retractor according to the invention.

Der Gurtaufroller weist einen Rahmen 10 auf, in welchem drehbar eine Gurtspule 12 gelagert ist. Auf der Gurtspule kann ein nicht dargestellter Sicherheitsgurt aufgewickelt werden. Die Gurtspule ist mit einem Ritzel 14 gekoppelt, welches mit einer Verzahnung 16 eines Kolbens 18 in Eingriff gebracht werden kann, der von einem Gasgenerator 20 in einem Gurtstrafferantrieb-Gehäuse 22 angeordnet ist. Das Gurtstrafferantrieb-Gehäuse 22, der Gasgenerator 20, der Kolben 18 und die Verzahnung 16 bilden einen Gurtstrafferantrieb.The belt retractor has a frame 10 in which rotatable a belt reel 12 is stored. On the belt reel an unillustrated seat belt can be wound up. The belt reel is with a pinion 14 coupled, which with a toothing 16 a piston 18 can be engaged by a gas generator 20 in a belt tensioner drive housing 22 is arranged. The belt tensioner drive housing 22 , the gas generator 20 , The piston 18 and the gearing 16 form a belt tensioner drive.

Es ist ein Federgehäuse 24 vorgesehen, in welchem eine Aufwickelfeder 26 angeordnet ist, deren eines Ende fest am Federgehäuse und deren anderes Ende fest an der Gurtspule 12 angebracht ist.It is a spring housing 24 provided in which a Aufwickelfeder 26 is arranged, one end fixed to the spring housing and the other end fixed to the belt reel 12 is appropriate.

Das Gurtstrafferantrieb-Gehäuse 22 und das Federgehäuse 24 sind einstückig miteinander als integrales Gehäuse ausgebildet. Auf diese Weise wird eine gute Abdichtung gegen Umwelteinflüsse sowie ein geringes Gewicht bei geringen Kosten erhalten.The belt tensioner drive housing 22 and the spring housing 24 are integrally formed with each other as an integral housing. In this way, a good seal against environmental influences and a low weight is obtained at low cost.

Alternativ kann die Abdeck- und Entklapperungsfunktion und das Federgehäuse einstückig in ein Kunststoffteil (Abdichtkassette 31; siehe 5) integriert werden.Alternatively, the cover and Entklapperungsfunktion and the spring housing in one piece in a plastic part (Abdichtkassette 31 ; please refer 5 ) to get integrated.

Das Gurtstrafferantrieb-Gehäuse 22 oder die Abdichtkassette 31 ist so ausgeführt, daß es mit geringer Vorspannung an der Verzahnung 16 in mit dem Bezugszeichen 28 bezeichneten Abschnitten anliegt. Dies verhindert, daß die Verzahnung und/oder der Kolben klappern können. Außerdem kann eine Fixierung der Verzahnung und/oder des Kolbens erzielt werden.The belt tensioner drive housing 22 or the sealing cassette 31 is designed so that it has low preload on the teeth 16 in with the reference numeral 28 designated sections is applied. This prevents the gearing and / or the piston from rattling. In addition, a fixation of the toothing and / or the piston can be achieved.

Das Gurtstrafferantrieb-Gehäuse 22 ist so ausgeführt, daß ein Abschnitt 30, wenn der Kolben 18 betätigt wird, vom Kolben nach außen weggeklappt wird (siehe Position 30') bzw. durchstoßen wird. Auf diese Weise kann ein Kundendienstmechaniker zuverlässig erkennen, ob der Gurtstrafferantrieb ausgelöst hat und daher ausgetauscht werden muß. Die visuelle Erkennbarkeit kann dadurch gesteigert werden, daß auf der Innenseite des wegklappbaren Abschnittes 30 eine deutlich sichtbare Farbe, beispielsweise Leuchtfarbe, vorgesehen ist.The belt tensioner drive housing 22 is designed so that a section 30 when the piston 18 is actuated, is folded away from the piston to the outside (see position 30 ' ) or pierced. In this way, a service technician can reliably detect whether the belt tensioner drive has triggered and therefore must be replaced. The visual recognizability can be increased by the fact that on the inside of the fold-away section 30 a clearly visible color, such as light color, is provided.

Das integrale Gehäuse, das durch das einstückig mit dem Federgehäuse 24 ausgeführte Gurtstrafferantrieb-Gehäuse 22 erhalten ist, ist am Rahmen 10 durch Einklipsen befestigt.The integral housing, by the one-piece with the spring housing 24 executed belt tensioner drive housing 22 is received, is at the frame 10 attached by clipping.

Claims (10)

Gurtaufroller mit einem Rahmen (10), einer Gurtspule (12) zur Aufnahme eines Sicherheitsgurtes, die in dem Rahmen drehbar gelagert ist, einer Aufwickelfeder (26), welche die Gurtspule in der Sicherheitsgurt-Aufwickelrichtung beaufschlagt, einem Federgehäuse (24), welches die Aufwickelfeder (26) umgibt, einem Gurtstrafferantrieb (16, 18, 20), der die Gurtspule in der Sicherheitsgurt-Aufwickelrichtung beaufschlagen kann, und einem Gurtstrafferantrieb-Gehäuse (22), dadurch gekennzeichnet, daß das Federgehäuse (24) und das Gurtstrafferantrieb-Gehäuse (22) einstückig miteinander als integrales Gehäuse (22, 24) ausgeführt sind.Belt retractor with a frame ( 10 ), a belt reel ( 12 ) for receiving a safety belt, which is rotatably mounted in the frame, a winding spring ( 26 ), which acts on the belt reel in the seatbelt winding direction, a spring housing ( 24 ), which the winding spring ( 26 ) surrounds a belt tensioner drive ( 16 . 18 . 20 ), which can act on the belt reel in the seat belt winding direction, and a belt tensioner drive housing ( 22 ), characterized in that the spring housing ( 24 ) and the belt tensioner drive housing ( 22 ) integral with each other as an integral housing ( 22 . 24 ) are executed. Gurtaufroller nach Anspruch 1, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24) ein Funktionselement (16) des Gurtstrafferantriebs entklappert.Belt retractor according to claim 1, characterized in that the integral housing ( 22 . 24 ) a functional element ( 16 ) of the belt tensioner drive unclasped. Gurtaufroller nach Anspruch 2, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24) eine Verzahnung (16) des Gurtstrafferantriebs enklappert.Belt retractor according to claim 2, characterized in that the integral housing ( 22 . 24 ) a gearing ( 16 ) of the belt tensioner drive. Gurtaufroller nach Anspruch 2, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24) einen Kolben (18) des Gurtstrafferantriebs entklappert.Belt retractor according to claim 2, characterized in that the integral housing ( 22 . 24 ) a piston ( 18 ) of the belt tensioner drive unclasped. Gurtaufroller nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24) den Kolben (18), die Aufwickelfeder (26) und eine Verzahnung (16) des Gurtstrafferantriebs vor Umwelteinflüssen schützt.Belt retractor according to one of the preceding claims, characterized in that the integral housing ( 22 . 24 ) the piston ( 18 ), the take-up spring ( 26 ) and a gearing ( 16 ) of the belt tensioner drive protects against environmental influences. Gurtaufroller nach den Ansprüchen 2 bis 5, dadurch gekennzeichnet, daß die Entklapperungsfunktion und die Abdichtfunktion vom Gurtstrafferantrieb-Gehäuse (22) und vom Federgehäuse (24) erzielt werden, die einstückig miteinander aus Kunststoff ausgeführt sind.Belt retractor according to claims 2 to 5, characterized in that the Entklapperungsfunktion and the sealing function of the belt tensioner drive housing ( 22 ) and the spring housing ( 24 ) are achieved, which are integral with each other made of plastic. Gurtaufroller nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24; 31) beim Austritt eines Kolbens (18) des Gurtstrafferantriebs teilweise wegklappt und/oder durchstoßen wird.Belt retractor according to one of the preceding claims, characterized in that the integral housing ( 22 . 24 ; 31 ) at the exit of a piston ( 18 ) of the belt tensioner drive partially folds away and / or pierced. Gurtaufroller nach Anspruch 7, dadurch gekennzeichnet, daß der wegklappenden Abschnitt (30) mit einer deutlich sichtbaren Farbe markiert ist.Belt retractor according to claim 7, characterized in that the wegklappenden section ( 30 ) is marked with a clearly visible color. Gurtaufroller nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das integrale Gehäuse (22, 24) am Rahmen (10) eingeklipst ist.Belt retractor according to one of the preceding claims, characterized in that the integral housing ( 22 . 24 ) on the frame ( 10 ) is clipped. Gurtaufroller nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Abdichtkassette (31) am Gurtstrafferantriebs-Gehäuse (22) durch Klipsen befestigt ist.Belt retractor according to one of the preceding claims, characterized in that the sealing cassette ( 31 ) on the belt tensioner drive housing ( 22 ) is fixed by clips.
DE102004002424.3A 2004-01-16 2004-01-16 retractor Expired - Fee Related DE102004002424B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102004002424.3A DE102004002424B4 (en) 2004-01-16 2004-01-16 retractor

Applications Claiming Priority (1)

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DE102004002424.3A DE102004002424B4 (en) 2004-01-16 2004-01-16 retractor

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DE102004002424B4 DE102004002424B4 (en) 2019-08-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033234A1 (en) * 2006-07-18 2008-01-24 Trw Automotive Gmbh Drive unit for a belt tensioner comprises a toothed rack having opposite-lying lateral wings for guiding the toothed rack on the guiding surfaces of a housing
US8042835B2 (en) 2006-04-03 2011-10-25 Trw Automotive Gmbh Belt tensioner for a safety belt system
DE102006031360B4 (en) * 2006-04-03 2017-09-21 Trw Automotive Gmbh Belt tensioner for a safety belt system

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413484A1 (en) * 1984-02-04 1986-01-02 Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst Automatic safety belt winding device with built-in belt tightening elements
DE4415103A1 (en) * 1993-10-25 1995-04-27 Trw Repa Gmbh Belt tensioners for seat belt restraint systems in vehicles
DE19513724A1 (en) * 1995-04-11 1996-10-17 Trw Repa Gmbh Belt retractor for a vehicle seat belt system
WO1998036953A1 (en) * 1997-02-21 1998-08-27 Breed Automotive Technology, Inc. Chain link rack pretensioner
DE19826305A1 (en) * 1997-06-12 1998-12-24 Trw Vehicle Safety Systems Seat belt for placing around vehicle occupant
EP1028040A2 (en) * 1999-02-09 2000-08-16 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pretensioner for webbing retractor
EP1029753A2 (en) * 1999-02-16 2000-08-23 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pretensionner for a webbing retractor
WO2001092069A1 (en) * 2000-06-02 2001-12-06 Automotive Systems Laboratory, Inc. Pretensioner driver
DE10030847A1 (en) * 2000-06-23 2002-01-03 Volkswagen Ag Rolling-up device for seat belt has carrier plate which can be fixed against bodywork part outside cavity
US20020175242A1 (en) * 2000-07-19 2002-11-28 Breed Automotive Technology, Inc. Seat belt retractor with integrally formed frame
DE20303302U1 (en) * 2003-02-28 2003-07-10 Trw Repa Gmbh Belt retractor with tensioning device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413484A1 (en) * 1984-02-04 1986-01-02 Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst Automatic safety belt winding device with built-in belt tightening elements
DE4415103A1 (en) * 1993-10-25 1995-04-27 Trw Repa Gmbh Belt tensioners for seat belt restraint systems in vehicles
DE19513724A1 (en) * 1995-04-11 1996-10-17 Trw Repa Gmbh Belt retractor for a vehicle seat belt system
WO1998036953A1 (en) * 1997-02-21 1998-08-27 Breed Automotive Technology, Inc. Chain link rack pretensioner
DE19826305A1 (en) * 1997-06-12 1998-12-24 Trw Vehicle Safety Systems Seat belt for placing around vehicle occupant
EP1028040A2 (en) * 1999-02-09 2000-08-16 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pretensioner for webbing retractor
EP1029753A2 (en) * 1999-02-16 2000-08-23 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pretensionner for a webbing retractor
WO2001092069A1 (en) * 2000-06-02 2001-12-06 Automotive Systems Laboratory, Inc. Pretensioner driver
DE10030847A1 (en) * 2000-06-23 2002-01-03 Volkswagen Ag Rolling-up device for seat belt has carrier plate which can be fixed against bodywork part outside cavity
US20020175242A1 (en) * 2000-07-19 2002-11-28 Breed Automotive Technology, Inc. Seat belt retractor with integrally formed frame
DE20303302U1 (en) * 2003-02-28 2003-07-10 Trw Repa Gmbh Belt retractor with tensioning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8042835B2 (en) 2006-04-03 2011-10-25 Trw Automotive Gmbh Belt tensioner for a safety belt system
DE102006031360B4 (en) * 2006-04-03 2017-09-21 Trw Automotive Gmbh Belt tensioner for a safety belt system
DE102006033234A1 (en) * 2006-07-18 2008-01-24 Trw Automotive Gmbh Drive unit for a belt tensioner comprises a toothed rack having opposite-lying lateral wings for guiding the toothed rack on the guiding surfaces of a housing

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Owner name: TRW AUTOMOTIVE GMBH, 73553 ALFDORF, DE

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