Elevator car door apparatus

An elevator car door apparatus comprising:

• a door frame that is fixed to a car above a car doorway, that includes a frame vertical surface, and that operates a car door;
• a door motor that includes:
• a rotating shaft that is perpendicular to the frame vertical surface;
• and
• a motor main body that rotates the rotating shaft,
• the door motor being supported on the door frame;
• a motor pulley that is fixed to the rotating shaft;
• a reduction pulley that is supported on the door frame;
• a first driving pulley that is supported on the door frame, the first driving pulley rotating together with the reduction pulley;
• a second driving pulley that is disposed on the door frame so as to be spaced apart from the first driving pulley in a width direction of the car doorway;
• a reduction belt that is wound around the motor pulley and the reduction pulley;
• and
• a driving belt that is wound around the first driving pulley and the second driving pulley,
• wherein:
• the door motor, the reduction pulley, and the first driving pulley are supported on the door frame by means of a unit supporting member,
• the unit supporting member includes a flat plate portion that is placed on the frame vertical surface,
• the reduction pulley and the first driving pulley are rotatable around a fixed shaft that is fixed so as to be perpendicular to the flat plate portion, and
• the motor main body and the motor pulley are disposed on a same side of the flat plate portion.