Automatic vertically-movable foldable bed

A bed having a portion automatically movable and foldable, the bed comprising:

• a body frame having a predefined height so as to support an upper body of a user;
• a leg frame connected to one side of the body frame and configured to support a lower body of the user;
• a plurality of foldable legs having upper ends pivotably connected to the leg frame;
• an actuator operably connected to the plurality of foldable legs and configured to drive pivoting movement of the plurality of foldable legs between a folded position and an unfolded position;
• a vertical movement guide disposed on one side of the body frame and extending in a vertical direction to guide vertical movement of the leg frame relative to the body frame;
• a first guide roller connected to the leg frame and configured to move along the vertical movement guide;
• a sliding guide rail disposed at each of left and right sides of a bottom portion of the body frame to guide horizontal movement of the leg frame;
• and
• a second guide roller disposed at one end of the leg frame corresponding to a position of the sliding guide rail, wherein of the second guide roller is guided along the sliding guide rail during horizontal movement of the leg frame,
• wherein the actuator is further configured to automatically move the leg frame vertically by folding the plurality of foldable legs.