UNIVERSAL COUPLING DEVICE Russian patent published in 2006 - IPC F16B7/18 F16B12/20 E04B1/38 

FIELD: device for fastening or securing constructional members.

SUBSTANCE: device comprises at least one sliding wedge fastening member, lead screw, and coupling member with the treaded end arranged inside the object to be secured for permitting interaction. The wedge fastening member has shaped transverse opening defined by the through cylindrical opening and conjugated longitudinal slot whose edges define the wedge surface which passes throughout it at an inclination to the cylindrical through opening. The head part of the coupling member has the conical bearing surface which is in a contact with the edges of the longitudinal slot. The lead screw is set in the threaded socket in the wedge fastening member made on the end closest to the through cylindrical opening. The sliding fastening member and coupling member are mounted in the dummy guiding cylindrical holes made in the objects to be secured, with their axes intersecting in the mutually perpendicular directions. The sliding wedge fastening member is made of a cylinder whose side is provided with a beveled chamfering that passes through the edges of the shaped opening and defines a wedge-shaped surface. The face of the sliding wedge fastening member is provided with the setting slot from the side of the threaded socket. The coupling member is made of cylindrical rod provided with the head part and groove that defines a neck with the bearing surface. The screw is arranged along the axis of the fastening member for permitting interaction with the neck of the coupling member.

EFFECT: expanded functional capabilities and reliability.

6 cl, 9 dwg