SAFETY DEVICE AND METHOD FOR OPERATING THE SAME

• Main Author: KATSUTA NOBUYUKI
• Format: Patent
• Language: English; Japanese
• Published: 03.07.2023
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a technique capable of appropriately inflating and expanding an airbag in a safety device for inflating and expanding the airbag by using hydrogen.SOLUTION: This safety device comprises: an airbag; an ignition unit; a first flow path for guiding hydrogen from a first container filled with the hydrogen to the ignition unit; a first opening/closing unit that is provided in the first flow path and that can switch a state between a closed state and an opened state; an introduction unit that introduces oxygen into the first flow path; and a water vapor flow path for guiding a water vapor generated by the ignition unit to the airbag. The first opening/closing unit is closed before the airbag is inflated and expanded. When the airbag is inflated and expanded, the first opening/closing unit is temporarily switched from the closed state to the opened state so as to supply the appropriate amount of hydrogen to the ignition unit.SELECTED DRAWING: Figure 1 【課題】水素を用いてエアバッグを膨張展開させる安全装置において、エアバッグを適切に膨張展開させることができる技術を提供する。【解決手段】安全装置は、エアバッグと、点火部と、水素が充填された第１容器から点火部へ水素を導く第１流路と、第１流路に設けられ閉状態と開状態とを切替可能な第１開閉部と、酸素を第１流路に導入する導入部と、点火部により生成された水蒸気をエアバッグに導く水蒸気流路と、を備え、エアバッグを膨張展開させる前は、第１開閉部が閉状態であり、エアバッグを膨張展開させるときは、適切な量の水素が点火部に供給されるように、第１開閉部が一時的に閉状態から開状態に切り替わる。【選択図】図１