THREE-MEMBER WEDGING JOINT Russian patent published in 1998 - IPC

FIELD: mechanical engineering; connection of machine parts. SUBSTANCE: three-member wedging joint consists of support member with inner space accommodating wedging and intermediate members. Wedging member is made with two surfaces of different curvature forming two higher kinematic pairs with support member featuring two degrees of freedom. Intermediate member installed between support and wedging members form higher kinematic pair with support member featuring two degrees of freedom at engagement with curvilinear surface, and hinge joint with wedging member. Use of intermediate member makes it possible to decrease contact stresses of loaded zone of joint owing to increase in contact area with support member. EFFECT: increased service life of joint. 2 dwg