BLIND RIVET Russian patent published in 2000 - IPC

FIELD: mechanical engineering. SUBSTANCE: rivet has hollow body with head and cylindrical part; body hollow accommodates core with head, working part, detachable slot, and auxiliary shank. Cylindrical head of core changes into spherical shape. Ratio of core head diameter D_c to core effective part diameter d_c is 1.23-1.44; ratio of core head diameter D_c to core head height H_c is 1.55-1.7; radio of core effective part diameter d_c to core detachable slot diameter d_dt is 1.23-1.52; ratio of casing head diameter D_cs to casing head height H_k is 5.0-5.3; ratio of casing head diameter D_cs to casing cylindrical part diameter d_cs is 1.76-1.8. EFFECT: simplified design and improved quality of riveted joint. 2 dwg