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DE10342229A1 - Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft - Google Patents

Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft Download PDF

Info

Publication number
DE10342229A1
DE10342229A1 DE2003142229 DE10342229A DE10342229A1 DE 10342229 A1 DE10342229 A1 DE 10342229A1 DE 2003142229 DE2003142229 DE 2003142229 DE 10342229 A DE10342229 A DE 10342229A DE 10342229 A1 DE10342229 A1 DE 10342229A1
Authority
DE
Germany
Prior art keywords
safety belt
drive mechanism
motor vehicles
mechanism linked
tightening device
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Withdrawn
Application number
DE2003142229
Other languages
German (de)
Inventor
Frank Fugel
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.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
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 Autoliv Development AB filed Critical Autoliv Development AB
Priority to DE2003142229 priority Critical patent/DE10342229A1/en
Publication of DE10342229A1 publication Critical patent/DE10342229A1/en
Withdrawn legal-status Critical Current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
    • B60R22/34—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
    • B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
    • B60R2022/4657—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators comprising a plurality of charges
    • 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
    • B60R2022/4685—Reels with means to tension the belt in an emergency by forced winding up with means to adjust or regulate the tensioning force in relation to external parameters
    • 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
    • B60R2022/469—Reels with means to tension the belt in an emergency by forced winding up reusable
    • 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
    • B60R22/4619—Transmission of tensioning power by cable, e.g. using a clutch on reel side

Landscapes

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

Abstract

A tightening drive mechanism (10) has multiple pyrotechnic gas generators (12) triggered individually. A first gas generator is activated so as to trigger a first preliminary tightening process and then another gas generator is activated so as to trigger a later preliminary tightening process.
DE2003142229 2003-09-11 2003-09-11 Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft Withdrawn DE10342229A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003142229 DE10342229A1 (en) 2003-09-11 2003-09-11 Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003142229 DE10342229A1 (en) 2003-09-11 2003-09-11 Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft

Publications (1)

Publication Number Publication Date
DE10342229A1 true DE10342229A1 (en) 2005-05-04

Family

ID=34398721

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003142229 Withdrawn DE10342229A1 (en) 2003-09-11 2003-09-11 Safety belt winding-up device for motor vehicles has a tightening device and a drive mechanism linked to a safety belt shaft

Country Status (1)

Country Link
DE (1) DE10342229A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022201239A1 (en) 2022-02-07 2023-08-10 Zf Friedrichshafen Ag Non-pyrotechnic seat belt tensioner

Citations (3)

* Cited by examiner, † Cited by third party
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
DE10064352C1 (en) * 2000-12-21 2002-03-21 Autoliv Dev Passenger seatbelt reel with tightening device has pre-locking device effective during tightening released when tension loading of seatbelt excedes given threshold
DE10052111A1 (en) * 2000-10-20 2002-05-02 Volkswagen Ag Belt tensioner has pyrotechnic drive with number of individual drive charges that can be activated individually or in multiples in event of vehicle collision, resettable actuating element

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
DE10052111A1 (en) * 2000-10-20 2002-05-02 Volkswagen Ag Belt tensioner has pyrotechnic drive with number of individual drive charges that can be activated individually or in multiples in event of vehicle collision, resettable actuating element
DE10064352C1 (en) * 2000-12-21 2002-03-21 Autoliv Dev Passenger seatbelt reel with tightening device has pre-locking device effective during tightening released when tension loading of seatbelt excedes given threshold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022201239A1 (en) 2022-02-07 2023-08-10 Zf Friedrichshafen Ag Non-pyrotechnic seat belt tensioner

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal