Foldable pedal apparatus for vehicle

A foldable pedal apparatus for a vehicle, the foldable pedal apparatus comprising:

• a pedal housing;
• a pedal pad rotatably coupled to the pedal housing and configured to move in response to operation of a driver;
• a spring module mounted within the pedal housing and configured to provide an elastic force to the pedal pad so that the pedal pad protrudes from the pedal housing;
• a gear device configured to rotate in receiving power of at least one motor fixed to the pedal housing to generate a boosting force;
• a rotation stopper coupled to the gear device,
• wherein when the pedal pad rotates in a first direction and is inserted into the pedal housing as the rotation stopper presses the pedal pad by rotation of the gear device, the pedal pad is hidden so that an operation of the pedal pad by the driver in an autonomous driving mode is impossible;
• and
• a rubber stopper coupled to the pedal housing, wherein when the pedal pad rotates to protrude from the pedal housing, the rubber stopper is provided as a stopper by being in contact with the pedal pad, wherein the rubber stopper includes a first rubber stopper and a second rubber stopper securely coupled to an internal upper surface of the pedal housing, and
• wherein the first rubber stopper is coupled to a position closer to a rotation center portion of the pedal pad than the second rubber stopper, so that when the pedal pad rotates to protrude from the pedal housing, the first rubber stopper is brought into contact with the pedal pad first and the second rubber stopper is brought into contact with the pedal pad later.

A foldable pedal apparatus for a vehicle, the foldable pedal apparatus comprising:

• a pedal housing;
• a pedal pad rotatably coupled to the pedal housing and configured to move in response to operation of a driver;
• a spring module mounted within the pedal housing and configured to provide an elastic force to the pedal pad so that the pedal pad protrudes from the pedal housing;
• a gear device configured to rotate in receiving power of at least one motor fixed to the pedal housing to generate a boosting force;
• and
• a rotation stopper coupled to the gear device,
• wherein when the pedal pad rotates in a first direction and is inserted into the pedal housing as the rotation stopper presses the pedal pad by rotation of the gear device, the pedal pad is hidden so that an operation of the pedal pad by the driver in an autonomous driving mode is impossible,
• wherein the gear device includes:
• a first gear coupled to the at least one motor;
• a second gear gear-engaged with the first gear;
• a third gear integrated with the second gear and rotating together with the second gear;
• and
• a fourth gear gear-engaged with the third gear and in which the rotation stopper is coupled to a position eccentric from a rotation center portion of the fourth gear, and
• wherein, to generate the boosting force in a process in which the power of the at least one motor is transmitted from the first gear to the fourth gear, the second gear has a number of gear teeth greater than a number of gear teeth of the first gear and has a pitch circle diameter (PCD) formed greater than a PCD of the first gear, and the fourth gear has a number of gear teeth greater than a number of gear teeth of the third gear and has a PCD formed greater than a PCD of the third gear;
• the third gear and the fourth gear include a worm gear and a worm wheel gear;
• and the second gear is integrally coupled to the third gear so that a center portion thereof is located at each of opposite end portions of the third gear.