GB1430258A - Vehicle safety device actuation arrangement - Google Patents

Vehicle safety device actuation arrangement

Info

Publication number
GB1430258A
GB1430258A GB3646873A GB3646873A GB1430258A GB 1430258 A GB1430258 A GB 1430258A GB 3646873 A GB3646873 A GB 3646873A GB 3646873 A GB3646873 A GB 3646873A GB 1430258 A GB1430258 A GB 1430258A
Authority
GB
United Kingdom
Prior art keywords
switch
bag
gas
generator
responsive
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
Application number
GB3646873A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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
Priority claimed from JP8986972U external-priority patent/JPS4947326U/ja
Priority claimed from JP7650672A external-priority patent/JPS5532574B2/ja
Priority claimed from JP48005286A external-priority patent/JPS5244094B2/ja
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1430258A publication Critical patent/GB1430258A/en
Expired 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
    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01558—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use monitoring crash strength
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/276—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means to vent the inflation fluid source, e.g. in case of overpressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

1430258 Crash restraint bags NISSAN MOTOR CO Ltd 31 July 1973 [1 Aug 1972 (2) 10 Jan 1973] 36468/73 Heading B7B An actuation system for an inflatable crash bag 40 includes first and second gas generators 41, 42 which can communicate with the bag, a first switch 45 responsive to a vehicle collision impact above a first magnitude, a second switch 46 responsive to a collision impact above a second higher magnitude, and means to retard the operation of the second generator. In operation, when a collision impact is of or above the first but below the second magnitude the first switch 45 actuates the first gas generator to partially expand the bag, and when the collision is above the second magnitude the first switch 45 actuates the first generator as before and the second switch the second generator to expand the bag to its full capacity after a delay caused by the retarding means. The switches may be inertia responsive switches, e.g., as shown in Fig. 1 in which a mass 20 is suspended adjacent a permanent magnet 26 which attracts the mass to space it from a fixed contact 23. Upon a sufficient impact, the mass separates from the magnet 26. In another embodiment, Fig. 2 (not shown), the mass is spring-biased from a fixed contact. The gas generating means have terminals connected through lines 43, 44 to switches 45 and 46 to a power source 47. In a modification a third switch (50) Fig. 6 (not shown) is responsive to an impact of a third level and actuates the gas generator before the second switch which is subjected to a delay. A failure proof switch (51) Fig. 6 (not shown) is interposed between power source (47) and gas generator terminals. In another embodiment, Fig. 7 (not shown) separate bags (52, 53) of different capacities are provided. The delay in operation of the second and third gas generators 55, 56, Fig. 9, may be provided by a delay circuit. Alternatively, explosive charges disposed in the gas generators may be fired by delayed action electric blasting caps (77, 79) Fig. 10 (not shown). A bag 86, Fig. 15, is inflated by three separate gas generators 86a, 86b, and 86c within the bag, a valve 99 being provided for discharging pressurized gas from the bag when fully expanded.
GB3646873A 1972-08-01 1973-07-31 Vehicle safety device actuation arrangement Expired GB1430258A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8986972U JPS4947326U (en) 1972-08-01 1972-08-01
JP7650672A JPS5532574B2 (en) 1972-08-01 1972-08-01
JP48005286A JPS5244094B2 (en) 1973-01-10 1973-01-10

Publications (1)

Publication Number Publication Date
GB1430258A true GB1430258A (en) 1976-03-31

Family

ID=27276689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3646873A Expired GB1430258A (en) 1972-08-01 1973-07-31 Vehicle safety device actuation arrangement

Country Status (3)

Country Link
DE (1) DE2339048A1 (en)
FR (1) FR2195206A5 (en)
GB (1) GB1430258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248332A (en) * 1990-09-20 1992-04-01 Honda Motor Co Ltd Vehicle occupant protective system
US6572142B1 (en) 1996-10-15 2003-06-03 Daicel Chemical Industries, Ltd. Air bag gas inflator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2745620A1 (en) * 1977-10-11 1979-04-12 Daimler Benz Ag AIR BAG SYSTEM TO PROTECT THE OCCUPANTS OF A MOTOR VEHICLE IN THE EVENT OF ACCIDENTS
DE2745658C2 (en) * 1977-10-11 1986-12-18 Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH, 8261 Aschau Solid gas generator
DE3702825A1 (en) * 1987-01-30 1988-08-11 Bayerische Motoren Werke Ag RESTRAINT SYSTEM FOR MOTOR VEHICLES
DE3729020A1 (en) * 1987-08-31 1989-03-16 Messerschmitt Boelkow Blohm IMPACT SENSOR FOR MOTOR VEHICLES
DE3809074A1 (en) * 1988-03-18 1989-10-05 Audi Ag Safety system for motor vehicles, including an inflatable crash protection cushion
DE4041049A1 (en) * 1990-12-20 1992-07-02 Siemens Ag Control system for airbag - has processor control to inflate at rate matching severity of crash

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248332A (en) * 1990-09-20 1992-04-01 Honda Motor Co Ltd Vehicle occupant protective system
GB2248332B (en) * 1990-09-20 1994-03-16 Honda Motor Co Ltd Occupant protective system
US6572142B1 (en) 1996-10-15 2003-06-03 Daicel Chemical Industries, Ltd. Air bag gas inflator

Also Published As

Publication number Publication date
DE2339048A1 (en) 1974-03-14
FR2195206A5 (en) 1974-03-01

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee