LOCK FOR CONNECTING AND FIXING COVER ON BOX HOUSING Russian patent published in 1999 - IPC

FIELD: packing; fixing plastic cover on plastic box housing. SUBSTANCE: lock has flexible thin-walled clip and diaphragm arranged with overhanging relative to rear wall of cover and made integral with cover. Diaphragm has through apertures and axles along its edge. Diaphragms and clip are made with inclination inward cover space at angle of 3-50 degrees relative to rear and front walls of cover. Rear and front walls of housing are made with thinning in direction to cover, and side walls are made parallel to each other. EFFECT: increased strength, reliability and sealing of connection between cover and box housing. 5 cl, 12 dwg