BOLTED JOINT OF THIN SHEET WITH THICK ONE Russian patent published in 2013 - IPC F16B5/02 

FIELD: construction.

SUBSTANCE: bolted joint of a thin sheet with a thick one. Including a thin sheet made with a hole for passage of the bolt, and a thick sheet made with a hole of larger diameter, into which edges of the thin sheet are rolled, as well as washers, a bolt and a nut. Between the washer and the thin sheet there is a C-shaped ring with height of more than or equal to three thicknesses of the thin sheet and thickness less or equal to the half-difference of diameters of holes in thick and thin sheets. The end of the ring at the side of the thin sheet is rounded along the radius equal to the thickness of the thin sheet.

EFFECT: increased strength of a joint.

4 dwg