PROBLEM TO BE SOLVED: To provide a vent hole structure capable of limiting exhaust of gas by opening and exhausting gas while an internal pressure of an airbag is high, and by closing when the internal pressure becomes low.SOLUTION: A pressure receiving part 7 is provided at a circular hole 6 for a vent hole of an airbag 2, and at a connection part 8 having a restoration property for connecting between a circumference of the circular hole 6 and the pressure receiving part 7, long slits 9 which communicate the inside and outside of the airbag 2 and which are longer than the length of the connection part 8 in a direction toward the center of the circular hole 6 are formed at three or more places. Therefore, a vent hole structure can be provided which can limit exhaust of gas by opening and exhausting gas while an internal pressure of the airbag 2 is high, and closing when the internal pressure becomes low. Thus, an occupant M can be protected by receiving a load applied to the occupant M at collision time, and shortage of the internal pressure of the airbag 2 at a later stage of the collision can be prevented.SELECTED DRAWING: Figure 3
【課題】エアバッグの内圧が高いときには開いてガスを排出し、内圧が低くなると閉じてガスの排出を制限できるベントホール構造を提供する。【解決手段】エアバッグ2のベントホール用円形孔6に受圧部7を設け、円形孔6の周縁と受圧部7との間を接続する復元性を有する連結部8に、エアバッグ2の内部と外部とを連通し円形孔6の中心に向かう方向における連結部8の長さよりも長いスリット9を3箇所以上形成する。そのため、エアバッグ2の内圧が高いときには開いてガスを排出し、内圧が低くなると閉じてガスの排出を制限できるベントホール構造を提供することができ、衝突時に乗員Mにかかる荷重を受け止めて乗員Mを保護でき、衝突後期におけるエアバッグ2の内圧不足を未然に防止することができる。【選択図】図3
VENT HOLE STRUCTURE OF AIRBAG
エアバッグのベントホール構造
2016-03-22
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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