To provide a crewman protection device which can accurately protect an upper half body of a crewman by an air bag, which is stored in a lap belt, despite a simple configuration.SOLUTION: A crewman protection device S for protecting a crewman MP who sits on a seat 1 comprises a seat belt 7, and an air bag 25 located in an area of a lap belt 10 which arrests a lumber part MP of the crewman in the seat belt. The air bag comprises: a body expansion part 28 which is connected so as to be relatively movable in a longitudinal direction with respect to the lap belt, and at the time of expansion completion, is located in the front of an upper half body MU of the crewman; and positioning expansion parts 50L, 50R which are so provided as to project from a lower end side of the body expansion part. The positioning expansion parts causes a peripheral edge member MT, which is arranged around the lap belt, to support a contact surface which contacts the peripheral edge member and is supported during expansion, whereby left and right centers of the body expansion part at the time of expansion completion can be so arranged as to be substantially coincident with left and right centers of the upper half body.SELECTED DRAWING: Figure 10
【課題】簡便な構成としても、ラップベルトに収納されたエアバッグにより、乗員の上半身を的確に保護可能な乗員保護装置を提供すること。【解決手段】シート1に着座した乗員MPを保護するための乗員保護装置S。シートベルト7と、シートベルトにおいて乗員の腰部MWを拘束するラップベルト10の領域に配置されるエアバッグ25と、を備える。エアバッグが、ラップベルトに対して左右方向に相対移動可能に連結されるとともに、膨張完了時に、乗員の上半身MUの前方に配置される本体膨張部28と、本体膨張部の下端側から突出するように配設される位置決め用膨張部50L,50Rと、を備える。位置決め用膨張部が、膨張時にラップベルトの周囲に配置される周縁部材MTに当接して支持される当接面を、周縁部材に支持させることにより、膨張完了時の本体膨張部の左右の中央を、上半身の左右の中央と、略一致させて配置可能とされる。【選択図】図10
CREWMAN PROTECTION DEVICE
乗員保護装置
2021-04-08
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |