To reconcile the operability of a steering wheel with the convenience for getting in and out by forming a recess over the prescribed range of the portion of a compartment floor corresponding to a steering wheel at least in the front of a driver's seat.
A recess 5 is formed on a car room floor 2 over a nearly rectangular range with the prescribed longitudinal width nearly equal to the car width in the front of the installation section 23 of a driver's seat 31. The size of the recessed quantity C of the recess 5 is set to avoid the interference between a steering wheel 4 and knees when an occupant seated on the driver's seat 31 draws his hands and feet to get off after a floor carpet is installed on the car room floor 2. When calves are drawn to the vicinity of the seat cushion 31C of a driver's seat 31, heels are lowered by the recess 5, and the interference between knees and the steering wheel 4 can be avoided.
MORIMOTO YOSHIHIRO
MARUYAMA MASAHIRO
