Underfloor storage structure for vehicle

An underfloor storage structure for a vehicle, comprising:

• a floor panel having a plane portion and a concave portion, the concave portion extending from a position under a front seat of the vehicle to a position behind the front seat;
• a floor lid for selectively closing and opening a portion of the concave portion located behind the front seat;
• a floor bucket provided in the concave portion in a detachable manner;
• an axle disposed in the floor bucket and under the floor lid;
• and
• a tray disposed in the floor bucket, said tray being rotatable about the axle and in a plane that is substantially parallel to the plane portion of the floor panel when the tray is disposed in the floor bucket and the floor bucket is provided in the concave portion, the tray being formed in a circular shape in plan view, and having storage sections delimited by radially arranged ribs and partitions engageable with the ribs in a detachable manner,
• wherein the floor lid, the axle, and the tray are configured to allow an item accommodated in one of the storage sections under the front seat to be taken out by opening the floor lid and by rotating the tray, and to not allow rotation of the tray with respect to the floor bucket when the floor lid closes the concave portion while being disposed over the axle.