Patent ID: 8863792
Filing Date: 2014-10-21
Classification: B60K

Abstract:
1. A filling port structure for a fuel tank, comprising: a filling port member that defines a filling port into which a fuel gun for supplying fuel to a fuel tank is inserted; an open/close valve that opens and closes the filling port; a rotary member that attaches the open/close valve to the filling port member in a manner such that the open/close valve is rotatable between an open position to open the filling port and a closed position to close the filling port; a locking member that is provided in the filling port member and is movable between a locking position to lock the open/close valve in the closed position to prevent rotation of the open/close valve, and an unlocking position to unlock the open/close valve to allow the rotation of the open/close valve, wherein the locking member is located farther from a center line of the filling port member when in the unlocking position than when in the locking position; an unlocking member that moves the locking member from the locking position to the unlocking position when pressed by the fuel gun with a diameter in a specific range; and a retention portion that holds the locking member in the unlocking position at least when the open/close valve is in the open position, wherein the retention portion includes a guide member which is located in a guiding position to guide the fuel gun toward the open/close valve when the fuel gun is inserted into the filling port and moves to a retracted position in accordance with movement of the open/close valve to the open position, and a retention member which is provided on the guide member and holds the locking member in the unlocking position by using movement of the guide member to the retracted position, and wherein the guide member is located farther from the fuel gun that is inserted. into the filling port when in the retracted position than when in the guiding position.