WO2000009367A3 - A triggering means for a safety belt having a pre-tensioning device - Google Patents

A triggering means for a safety belt having a pre-tensioning device Download PDF

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Publication number
WO2000009367A3
WO2000009367A3 PCT/BR1999/000066 BR9900066W WO0009367A3 WO 2000009367 A3 WO2000009367 A3 WO 2000009367A3 BR 9900066 W BR9900066 W BR 9900066W WO 0009367 A3 WO0009367 A3 WO 0009367A3
Authority
WO
WIPO (PCT)
Prior art keywords
safety belt
belt
triggering means
shaped conduct
winding wheel
Prior art date
Application number
PCT/BR1999/000066
Other languages
French (fr)
Other versions
WO2000009367A2 (en
Inventor
Enzio Abbruzzini
Original Assignee
Huzimet Acos Especiais Ltda
Enzio Abbruzzini
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 Huzimet Acos Especiais Ltda, Enzio Abbruzzini filed Critical Huzimet Acos Especiais Ltda
Priority to EP99947129A priority Critical patent/EP1034099A2/en
Publication of WO2000009367A2 publication Critical patent/WO2000009367A2/en
Publication of WO2000009367A3 publication Critical patent/WO2000009367A3/en

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
    • B60R22/34—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
    • B60R22/4676—Reels with means to tension the belt in an emergency by forced winding up comprising energy-absorbing means operating between belt reel and retractor frame
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over

Landscapes

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

Abstract

The present invention refers to a triggering means for a safety belt having a pre-tensioning device comprising a shaft of a winding wheel (10) for the safety belt said triggering means comprising a 'U' shaped conduct having an enlarged diameter (72) in one leg for receiving an explosive charge, a flexible toothed belt (78) positioned inside the 'U' shaped conduct comprising a series of teeth facing the inner portion of said 'U' shaped conduct, the teeth of said flexible toothed belt projecting through a slot cut in the opposite leg of said 'U' shaped conduct to engage with a toothed gear (68) mounted in one end of the shaft of the winding wheel of the safety belt, whereby when a sensor detects a sudden disacceleration of the vehicle an electrical signal fires the explosive charge thereby causing a displacement of the toothed belt within the 'U' shaped conduct to rotate the toothed gear and the winding wheel connected therewith in order to immediately wind up the strap of the safety belt to eliminate any slack that may there exist in the belt.
PCT/BR1999/000066 1998-08-10 1999-08-04 A triggering means for a safety belt having a pre-tensioning device WO2000009367A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99947129A EP1034099A2 (en) 1998-08-10 1999-08-04 A triggering means for a safety belt having a pre-tensioning device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI9803030-2 1998-08-10
BR9803030A BR9803030A (en) 1998-08-10 1998-08-10 Improvement in seat belt with pretensioner.

Publications (2)

Publication Number Publication Date
WO2000009367A2 WO2000009367A2 (en) 2000-02-24
WO2000009367A3 true WO2000009367A3 (en) 2000-07-06

Family

ID=4070277

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR1999/000066 WO2000009367A2 (en) 1998-08-10 1999-08-04 A triggering means for a safety belt having a pre-tensioning device

Country Status (4)

Country Link
EP (1) EP1034099A2 (en)
AR (1) AR020122A1 (en)
BR (1) BR9803030A (en)
WO (1) WO2000009367A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10066247B4 (en) * 1999-03-04 2008-01-03 Autoliv Development Ab Safety belt system for motor vehicles has belt winder with winder shaft, gas generator, shaft drive, and simple coupling mechanism
JP4544931B2 (en) * 2004-03-26 2010-09-15 株式会社東海理化電機製作所 Webbing take-up device
US8845022B2 (en) 2012-09-04 2014-09-30 Britax Child Safety, Inc. Child seat with belt tensioning mechanism for improved installation
WO2014087721A1 (en) * 2012-12-04 2014-06-12 株式会社東海理化電機製作所 Webbing take-up device
US9499074B2 (en) 2013-10-25 2016-11-22 Britax Child Safety, Inc. Forward and rearward facing child seat with belt tensioning mechanism for improved installation

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931164A1 (en) * 1979-08-01 1981-02-19 Dynamit Nobel Ag ROTATIONAL ELEMENT
DE3533126A1 (en) * 1985-09-17 1987-03-19 Klippan Gmbh BELT REEL FOR REAR TENSIONER
US4796918A (en) * 1987-04-06 1989-01-10 Bsrd Limited Automatic rewinding type safety belt retractors
US5333906A (en) * 1991-03-11 1994-08-02 Takata Corporation Seat belt retractor
WO1995027638A1 (en) * 1994-04-11 1995-10-19 Autoliv Development Ab Mass-body drive for a rotary tightening device
DE19517440A1 (en) * 1994-05-25 1995-11-30 Volkswagen Ag Safety belt retractor for vehicles with overload protection
EP0752350A1 (en) * 1995-07-03 1997-01-08 TRW Occupant Restraint Systems GmbH Seat belt retractor
WO1997013661A1 (en) * 1995-10-12 1997-04-17 Breed Automotive Technology, Inc. Chain driven pretensioner and retractor
WO1997013660A1 (en) * 1995-10-12 1997-04-17 Alliedsignal Inc. Spiral tube compact pretensioner and retractor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931164A1 (en) * 1979-08-01 1981-02-19 Dynamit Nobel Ag ROTATIONAL ELEMENT
DE3533126A1 (en) * 1985-09-17 1987-03-19 Klippan Gmbh BELT REEL FOR REAR TENSIONER
US4796918A (en) * 1987-04-06 1989-01-10 Bsrd Limited Automatic rewinding type safety belt retractors
US5333906A (en) * 1991-03-11 1994-08-02 Takata Corporation Seat belt retractor
WO1995027638A1 (en) * 1994-04-11 1995-10-19 Autoliv Development Ab Mass-body drive for a rotary tightening device
DE19517440A1 (en) * 1994-05-25 1995-11-30 Volkswagen Ag Safety belt retractor for vehicles with overload protection
EP0752350A1 (en) * 1995-07-03 1997-01-08 TRW Occupant Restraint Systems GmbH Seat belt retractor
WO1997013661A1 (en) * 1995-10-12 1997-04-17 Breed Automotive Technology, Inc. Chain driven pretensioner and retractor
WO1997013660A1 (en) * 1995-10-12 1997-04-17 Alliedsignal Inc. Spiral tube compact pretensioner and retractor

Also Published As

Publication number Publication date
EP1034099A2 (en) 2000-09-13
AR020122A1 (en) 2002-04-10
WO2000009367A2 (en) 2000-02-24
BR9803030A (en) 2000-05-02

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