FR2400912A1 - Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid - Google Patents

Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid

Info

Publication number
FR2400912A1
FR2400912A1 FR7725978A FR7725978A FR2400912A1 FR 2400912 A1 FR2400912 A1 FR 2400912A1 FR 7725978 A FR7725978 A FR 7725978A FR 7725978 A FR7725978 A FR 7725978A FR 2400912 A1 FR2400912 A1 FR 2400912A1
Authority
FR
France
Prior art keywords
retro
propellant
liquid
explosion pressure
pressure generated
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.)
Granted
Application number
FR7725978A
Other languages
French (fr)
Other versions
FR2400912B1 (en
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 Repa Feinstanzwerk GmbH
Original Assignee
TRW Repa Feinstanzwerk 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 Repa Feinstanzwerk GmbH filed Critical TRW Repa Feinstanzwerk GmbH
Priority to FR7725978A priority Critical patent/FR2400912A1/en
Publication of FR2400912A1 publication Critical patent/FR2400912A1/en
Application granted granted Critical
Publication of FR2400912B1 publication Critical patent/FR2400912B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The retro-tautener has a pyrotechnic propellant and is for an automatic winding mechanism for a safety belt. The explosion pressure generated by the propellant, in the event of an emergency acts on a retrotautening element which tightens the safety belt round the body of the person to be protected. A liquid which transmits the explosion pressure of the propellant is provided between the propellant and the retro-tautening element.
FR7725978A 1977-08-25 1977-08-25 Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid Granted FR2400912A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7725978A FR2400912A1 (en) 1977-08-25 1977-08-25 Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7725978A FR2400912A1 (en) 1977-08-25 1977-08-25 Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid

Publications (2)

Publication Number Publication Date
FR2400912A1 true FR2400912A1 (en) 1979-03-23
FR2400912B1 FR2400912B1 (en) 1981-06-12

Family

ID=9194779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725978A Granted FR2400912A1 (en) 1977-08-25 1977-08-25 Retro-tensioner for automatic winding of safety belts - uses explosion pressure generated by pyrotechnical propellant and transmitted by liquid

Country Status (1)

Country Link
FR (1) FR2400912A1 (en)

Also Published As

Publication number Publication date
FR2400912B1 (en) 1981-06-12

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Legal Events

Date Code Title Description
ST Notification of lapse