DE20218869U1 - Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact - Google Patents

Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact

Info

Publication number
DE20218869U1
DE20218869U1 DE20218869U DE20218869U DE20218869U1 DE 20218869 U1 DE20218869 U1 DE 20218869U1 DE 20218869 U DE20218869 U DE 20218869U DE 20218869 U DE20218869 U DE 20218869U DE 20218869 U1 DE20218869 U1 DE 20218869U1
Authority
DE
Germany
Prior art keywords
piston
seat belt
cylinder
pushing element
rope
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 - Lifetime
Application number
DE20218869U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Occupant Restraint Systems GmbH
Original Assignee
TRW Occupant Restraint Systems GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Priority to DE20218869U priority Critical patent/DE20218869U1/en
Publication of DE20218869U1 publication Critical patent/DE20218869U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
    • B60R2022/286—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material

Abstract

The device (10), designed as a cylinder (12) accommodating a piston (14), a pulling device (24) attached to the piston (14) and transferring the motion of the piston (14) to the seat belt, a gas generator (18) driving the piston (14), a pushing element (46) connected to the pulling device (24), and a deforming pipe (42) arranged between piston (14) and pushing element (46). The deforming pipe (42) is made of a special compound and pushed against the piston (14) when the pulling forces exceed a certain level. The deformation of the pipe (42) facilitates the pulling element (24) to yield and to reduce the strain acting on the passenger.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (7)

1. Straffer für einen Sicherheitsgurt, mit
einem Zylinder (12),
einem im Zylinder (12) verschiebbar angeordneten Kolben (14),
einem Zugübertragungsmittel (24), das mit dem Kolben (14) verbunden ist, um die Bewegung des Kolbens (14) auf den Sicherheitsgurt zu übertragen,
einem Antrieb (18), der auf den Kolben (14) eine Antriebskraft ausüben kann, um den Sicherheitsgurt zu straffen,
einem an das Zugmittel (24) gekoppelten Verdrängerteil (46), und
einem zwischen dem Kolben (14) und dem Verdrängerteil (46) angeordneten Deformationselement (42; 50),
dadurch gekennzeichnet, daß
das Deformationselement (42; 50) bei Überschreiten einer vorbestimmten Zugkraft auf das Zugmittel (24) durch das Verdrängerteil (46) gegen den Kolben (14) gestaucht wird.1. Pretensioner for a seat belt, with
a cylinder ( 12 ),
a piston ( 14 ) slidably arranged in the cylinder ( 12 ),
to transfer a traction transfer means (24) which is connected to the piston (14) to control the movement of the piston (14) to the seat belt,
a drive ( 18 ) which can exert a driving force on the piston ( 14 ) in order to tighten the seat belt,
a displacement part ( 46 ) coupled to the traction means ( 24 ), and
a deformation element ( 42 ; 50 ) arranged between the piston ( 14 ) and the displacement part ( 46 ),
characterized in that
the deformation element ( 42 ; 50 ) is compressed against the piston ( 14 ) by the displacement part ( 46 ) when a predetermined tensile force on the traction means ( 24 ) is exceeded. 2. Straffer nach Anspruch 1, dadurch gekennzeichnet, daß das Deformations­ element ein Deformationsrohr (42) ist.2. tensioner according to claim 1, characterized in that the deformation element is a deformation tube ( 42 ). 3. Straffer nach Anspruch 1, dadurch gekennzeichnet, daß das Deformations­ element aus einem Compoundwerkstoff (50) gebildet ist.3. tensioner according to claim 1, characterized in that the deformation element is formed from a compound material ( 50 ). 4. Straffer für einen Sicherheitsgurt, mit
einem Zylinder (12),
einem im Zylinder (12) verschiebbar angeordneten Kolben (14),
einem Zugseil (24), das mit dem Kolben (14) verbunden ist, um die Bewegung des Kolbens (14) auf den Sicherheitsgurt zu übertragen,
einem Antrieb (18), der auf den Kolben (14) eine Antriebskraft ausüben kann, um den Sicherheitsgurt zu straffen,
dadurch gekennzeichnet, daß
der Straffer (10) ferner eine Seilschikane (52) umfaßt, durch die das Zugseil (24) geführt ist.4. Pretensioner for a seat belt, with
a cylinder ( 12 ),
a piston ( 14 ) slidably arranged in the cylinder ( 12 ),
to transfer a traction cable (24) which is connected to the piston (14) to control the movement of the piston (14) to the seat belt,
a drive ( 18 ) which can exert a driving force on the piston ( 14 ) in order to tighten the seat belt,
characterized in that
the tensioner ( 10 ) further comprises a rope baffle ( 52 ) through which the pull rope ( 24 ) is guided. 5. Straffer nach Anspruch 4, dadurch gekennzeichnet, daß die Seilschikane (52) am Kolben (14) anliegt und zusammen mit dem Kolben (14) im Zylinder (12) verschoben werden kann.5. tensioner according to claim 4, characterized in that the cable baffle ( 52 ) abuts the piston ( 14 ) and can be moved together with the piston ( 14 ) in the cylinder ( 12 ). 6. Straffer nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß am Zugseil (24) ein Anschlag (54) gebildet ist, der ein Durchrutschen des Seils (24) durch die Seilschikane (52) verhindert.6. tensioner according to claim 4 or 5, characterized in that a stop ( 54 ) is formed on the traction rope ( 24 ), which prevents the rope ( 24 ) from slipping through the rope baffle ( 52 ). 7. Straffer nach einem der vorhergehenden Ansprüche, dadurch gekenn­ zeichnet, daß der Kolben (14) mit einer Rücklaufsperre versehen ist, die verhin­ dert, daß der Kolben nach dem Straffvorgang wieder in seine Ruhestellung verschoben werden kann.7. Tensioner according to one of the preceding claims, characterized in that the piston ( 14 ) is provided with a backstop which prevents the piston from being moved back to its rest position after the tightening process.
DE20218869U 2002-12-05 2002-12-05 Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact Expired - Lifetime DE20218869U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20218869U DE20218869U1 (en) 2002-12-05 2002-12-05 Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20218869U DE20218869U1 (en) 2002-12-05 2002-12-05 Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact

Publications (1)

Publication Number Publication Date
DE20218869U1 true DE20218869U1 (en) 2003-04-10

Family

ID=7977675

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20218869U Expired - Lifetime DE20218869U1 (en) 2002-12-05 2002-12-05 Seat belt tensioning device, comprising pushing element moving towards piston and deforming pipe in case of impact

Country Status (1)

Country Link
DE (1) DE20218869U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1593559A1 (en) * 2004-05-04 2005-11-09 Ford Global Technologies, LLC Seat belt restraint system
DE102005018532A1 (en) * 2005-04-21 2006-12-28 Aktiv-First Gmbh Device, useful for removing and/or preventing growth of moss, algae, lichens or similar vegetations, comprises slanted waving and/or profile roof having profile roof area element, wave valley and longitudinal metal element
WO2009012860A2 (en) * 2007-07-24 2009-01-29 Daimler Ag Belt tensioner
DE102011014363A1 (en) 2011-03-17 2012-09-20 Trw Automotive Gmbh Tensioner for installation at e.g. buckle of safety belt of vehicle, has locking member released by clamping member during relaxation of relieving element such that force transmission between locking and clamping members is prevented
DE102011014362A1 (en) 2011-03-17 2012-09-20 Trw Automotive Gmbh Linear actuator for vehicle occupant restraint system, has piston, clamp and locking element that are coordinated to transmit tensioning force from clamp/piston to locking element if piston and clamp are moved in preset direction
WO2018108857A1 (en) * 2016-12-16 2018-06-21 Trw Automotive Gmbh Force limiter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441738A (en) * 1980-12-30 1984-04-10 Nippon Soken, Inc. Seat belt tensioning device
DE20102758U1 (en) * 2001-02-16 2001-06-28 Trw Repa Gmbh Belt tensioners

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441738A (en) * 1980-12-30 1984-04-10 Nippon Soken, Inc. Seat belt tensioning device
DE20102758U1 (en) * 2001-02-16 2001-06-28 Trw Repa Gmbh Belt tensioners
EP1232916A1 (en) * 2001-02-16 2002-08-21 TRW Occupant Restraint Systems GmbH & Co. KG Safety belt pretensioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1593559A1 (en) * 2004-05-04 2005-11-09 Ford Global Technologies, LLC Seat belt restraint system
DE102005018532A1 (en) * 2005-04-21 2006-12-28 Aktiv-First Gmbh Device, useful for removing and/or preventing growth of moss, algae, lichens or similar vegetations, comprises slanted waving and/or profile roof having profile roof area element, wave valley and longitudinal metal element
WO2009012860A2 (en) * 2007-07-24 2009-01-29 Daimler Ag Belt tensioner
WO2009012860A3 (en) * 2007-07-24 2009-04-02 Daimler Ag Belt tensioner
DE102011014363A1 (en) 2011-03-17 2012-09-20 Trw Automotive Gmbh Tensioner for installation at e.g. buckle of safety belt of vehicle, has locking member released by clamping member during relaxation of relieving element such that force transmission between locking and clamping members is prevented
DE102011014362A1 (en) 2011-03-17 2012-09-20 Trw Automotive Gmbh Linear actuator for vehicle occupant restraint system, has piston, clamp and locking element that are coordinated to transmit tensioning force from clamp/piston to locking element if piston and clamp are moved in preset direction
WO2018108857A1 (en) * 2016-12-16 2018-06-21 Trw Automotive Gmbh Force limiter
CN110198870A (en) * 2016-12-16 2019-09-03 Trw汽车股份有限公司 Force-limiting device
US11046284B2 (en) 2016-12-16 2021-06-29 Trw Automotive Gmbh Force limiter

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Legal Events

Date Code Title Description
R163 Identified publications notified
R207 Utility model specification

Effective date: 20030515

R150 Term of protection extended to 6 years

Effective date: 20051202

R151 Term of protection extended to 8 years

Effective date: 20081120

R152 Term of protection extended to 10 years

Effective date: 20110119

R071 Expiry of right
R071 Expiry of right