Upper arm module of wearable muscular strength assisting apparatus and wearable muscular strength assisting apparatus including same

An upper arm module of a wearable muscular strength assisting apparatus, the upper arm module comprising:

• a base part connected to a wearer's body, and disposed to correspond to an upper end portion of a wearer's upper arm;
• an upper arm part having a first end thereof coupled to the base part to be rotatable about a fixed point, wherein the upper arm part extends to correspond to the wearer's upper arm and is coupled to the wearer's upper arm to apply a torque to the wearer's upper arm;
• an elastic body having a first end thereof fixedly coupled to the upper arm part at a position spaced apart from the first end of the upper arm part in an extension direction of the upper arm part, wherein the elastic body generates an elastic force by deformation;
• and
• a connecting link having a first end thereof rotatably coupled to the base part at a point of application spaced apart from the fixed point and a second end thereof coupled to a second end of the elastic body, wherein a length of the elastic body is varied as the upper arm part is rotated about the fixed point.