Safety apparatus for inflating a vehicle safety device
Реферат: 1381083 Inflatable bags ALLIED CHEMICAL CORP 3 Jan 1973 [11 Jan 1972] 437/73 Heading B7B Vehicle safety apparatus comprises a gas source 34 having a gas containing portion 36 and a gas generating portion 32, a plurality of gas generating charges 28, 30 disposed within the gas generating portion, means 24, 26 for igniting the charges 28, 30 upon receipt of an electrical current and means for permitting gas developed from the charges 28, 30 to flow into the gas containing portion 36 with gas releasing means 40 connected to the portion 36 for permitting the pressurized gas and the generated gas to flow into an inflatable bag 31. In operation, forces resulting on vehicle impact displace a roller 87, Fig. 2, of an impact detector 14 against a first preselected resisting force determined by an electroconductive band 90 of stainless steel or gold plated copper until the band 90 contacts conductive element 92. An electric current is then transmitted from power source 12 to heat a bridge wire 84 which actuates detonator 82 to dislodge plug 80. Pressurized gas 38 then flows into bag 31. With a greater vehicle impact force roller 96, Fig. 3, of control element 16 is displaced against a greater resisting force determined by band 100 which contacts switch means 46 and resistance element 102 for electric current to be transmitted during a controlled time interval from source 12 via a transmission circuit 20 to bridge wire 60. Squib 54 then ignites a gas generating charge 28, the barrier 50 ruptures and gas flows through diffuser 76, portion 36 and into bag 31. Input forces of greater magnitude will similarly actuate control element 18 so that current is transmitted during a controlled time interval for actuating charge 30. As the roller 96 is displaced the band 100 is brought into contact with a variable portion of resistance element 102 so that the time interval of travel of current varies inversely with the vehicle impact force. The bag 31 preferably has a porous portion 144 for the bag to collapse at a preselected rate. Means is thereby provided for varying the gas generating charges ignited in direct proportion to the impact velocity.
Apparatus for measuring speed variations of a vehicle, coupled to a warning light unit
Номер патента: FR2688593A1. Автор: Defarge Alexis. Владелец: Defarge Alexis. Дата публикации: 1993-09-17.