SELF-LOCK NUT Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: nut comprises a housing provided with cylindric bit and stop member. The bit is provided with the inner end face collar. The stop member is made up as inner ring and closed flexible cap that encloses it. The cap is pressed to the ring with the bit collar. A spacer can be positioned on the inner end face of the cap. The space of the cap can be filled with a viscous material. The ring can have one or several grooves arranged from different sides of the ring. The ring can be composed of rings with different modulus of elasticity. The modulus of elasticity decreases in the direction to the collar of the nut bit. EFFECT: enhanced reliability. 5 cl, 5 dwg