Seating support device of wearable chair

A seating support device of a wearable chair, comprising:

• a femoral link extending in a direction where a wearer's femoral region extends, and configured to be connected with the wearer's femoral region;
• a crural link extending in a direction where a wearer's crural region extends, and configured to be connected with the wearer's crural region, and including a housing that is coupled at an upper end thereof to a lower end of the femoral link to be rotatable relative thereto, and a sliding part that is slidably coupled to the housing in a direction in which the housing extends;
• a limiting device operated in conjunction with a relative rotation between the femoral link and the crural link to allow the sliding part sliding in the housing to slide up and down, and to prevent sliding between the sliding part and the housing in a state where an angle between the femoral link and the crural link is a seating angle;
• and
• a contact link coupled at a first end thereof to a lower end of the crural link to be rotatable relative thereto, and operated in conjunction with the sliding of the sliding part associated with the relative rotation between the femoral link and the crural link to be rotated about the first end, a second end coming into contact with a ground while being spaced apart from the crural link when a wearer wears the device.