There is provided an occupant protecting apparatus which reduces a load
applied to an occupant caused by inflating an airbag in a seat portion.
The occupant protecting apparatus is provided in a seat portion. The
occupant protecting apparatus is constituted by an inflator serving as a
gas generation source, and an airbag. In a state in which a gas is not
supplied from the inflator, that is, in a state in which the airbag is
extended to a rear side from a front side of the seat portion under a
non-inflated state, a ratio between a distance from a center position of
the inflator to a rear end of a support wall of a second bottom frame,
and a distance from a distal end of the airbag to the rear end of the
support wall of the second bottom frame is set to be equal to or less
than 0.77.