Patent attributes
A passenger protection device includes: a front airbag configured to inflate so as to cover a front of the passenger; a front inflator configured to supply the inflation gas to the front airbag; a window airbag accommodated with being folded at an upper edge-side of a window arranged at a lateral side of the passenger and configured to inflate so as to cover a vehicle interior-side of the window; and a window airbag inflator configured to supply the inflation gas to the window airbag. The window airbag includes a bag-adjacent inflation part configured to cover a side of a head of the passenger received by the front airbag, and an activation start timing of the window airbag inflator is set within a range of −20 ms to −5 ms from a time at which the front airbag having completely inflated starts to receive the passenger.