Patent ID: 9573502
Date: 2017-02-21
CPC Classifications: B60N

Claim:
1. A seat cushion device capable of adjusting hardness of a seat cushion including a seating surface, on which a user is seated, the seat cushion device comprising: a recessed part that is formed in a back surface of the seating surface in the seat cushion; a left plate that faces a back surface of a left thigh holding part of the seating surface, on which a left leg thigh of the user is locatable, and that is movable inside the recessed part vertically; a right plate that faces a back surface of a right thigh holding part of the seating surface, on which a right leg thigh of the user is locatable, and that is movable inside the recessed part vertically; and a gap adjustment mechanism that is configured to move the left plate and the right plate vertically in an independent manner to adjust a clearance from the back surface of the seating surface so that the gap adjustment mechanism is configured to position the left and right plates so that while the left and right plates are being moved by the gap adjustment mechanism to adjust the clearance, the clearance includes