BRAKE DEVICE FOR KNEE ASSEMBLY OF ARTIFICIAL LIMB

摘要

PURPOSE: A brake device for a knee assembly of an artificial limb is provided to prevent the abrasion of a bushing due to friction and prevent a frictional noise. CONSTITUTION: The device is installed on a knee assembly of an artificial limb of an above-knee prosthesis and applies a friction brake force on a first central axis(32a) at a stance phase. A plurality of bearing grooves(53) with dense, equal spacing are formed in a circumferential direction on the inner diameter of the central point of diffraction of a brake block(51). A plurality of needle bearings(54) are engaged within the bearing grooves(53), which point-contact to an outer surface of the first central axis(32a) and are rolling-coupled thereto.