Patent ID: 11903891
Assignee: H ROBOTICS INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. The rehabilitation exercise device of claim 8, wherein the rotation stopper comprises:
a restraining dial;
a shaft body forming the hinge shaft;
a shaft column protruding upward from the shaft, the restraining dial coupled to the shaft column so as to be rotatable and liftable; and
a shaft plate configured to be rotated around the shaft body, and connected to the first adjustment link and the third adjustment link,
wherein a plurality of restraining holes are formed in the shaft body at a predetermined interval along a circumferential direction of the shaft column;
the restraining dial comprises a restraining pin protruding from an end thereof oriented toward the shaft body and configured to be inserted into or released from one restraining hole selected from the plurality of restraining holes, and a catching recess depressed in a region of the end of the restraining dial oriented toward the shaft body, at a position spaced apart from the restraining pin; and
the shaft plate comprises a catching protrusion configured to connect the restraining dial to the shaft plate by being caught by the catching recess of the restraining dial.