METHOD OF CROSS-BAR MANUFACTURE AND CROSS-BAR Russian patent published in 2002 - IPC

FIELD: manufacture of locking devices in doors, locks, safes, etc. SUBSTANCE: method includes manufacture of load-carrying member with external and internal parts. Internal part is used in the form of threaded member, and external part, in the form of nuts or nuts and washers. In case of load radial action on cross-bar, load is taken by nuts or simultaneously by nuts and washers. In cross-bar structure, stresses arise both, in body of threaded member and in bodies of nuts and washers. Screwing of nuts on threaded member up to tight contact of nuts with one another, or with washers, separate sections of threaded member are tensioned and nuts or nuts and washers are compressed within limits of elastic deformations. EFFECT: broadened assortment of technical means in manufacture of cross-bars. 2 cl, 2 dwg