Railless variable seatback type rear seat

A rear seat comprising:

• a linear movement device configured to convert a rotation of a motor into a linear movement;
• a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward;
• and
• a reclining angle change device configured to:
• convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward,
• wherein the sliding movement device includes:
• a rear seat cross member configured to fix a sliding member of the linear movement device and forming a seat cushion movement distance by the sliding movement;
• a side upper bracket fixed to the rear seat cross member and forming a side upper bracket movement distance by the sliding movement;
• a leg bracket coupled such that the side upper bracket has a relative movement;
• and
• a slot pin configured to allow the relative movement of the side upper bracket with respect to the leg bracket.

A rear seat comprising:

• a linear movement device configured to convert a rotation of a motor into a linear movement;
• a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward;
• and
• a reclining angle change device configured to:
• convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward,
• wherein the linear movement device includes:
• the motor in which the rotation of the motor is generated;
• a sliding member configured to convert the rotation of the motor into the linear movement and to generate, by the linear movement, the sliding movement for the sliding movement device;
• and
• a cross member bracket configured to fix the motor on a center portion of the seat cushion.