RIVET Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: rivet has housing 1 with blind head 2, axial threaded opening and concave entry chamfering 6. Screw 7 is screwed in the housing. The screw has head 9 and detachable technological shank 10. Bushing 13, which can be strained, is made up as a bushing provided with three- step axial opening 14,15 and 17. The bushing is mounted on the screw between its head and housing. On screwing the screw in the housing, the bushing is strained to define locking head 19 from the side of a part to be joined as well as corrugation 20 in the middle part of the bushing. When the corrugation has been formed, rotation of the screw is decelerated and stops at all. In so doing, the surface of a part to be joined is not to be damaged . EFFECT: enhanced reliability. 4 dwg