| abstract |
A base portion for supporting a back surface of the wearer; A leg portion rotatably coupled to the base portion and connected to the wearer's lower body portion; A wire portion coupled to the base portion and the leg portion, respectively; And a driving unit provided in at least one of a base and a leg and being coupled to the wire and driven to pull or loosen the wire according to the control to provide an assist force to the waist strength of the wearer, Is introduced. |