FIELD: package industry.
SUBSTANCE: invention concerns locks of elastic material for closing plastic vessels formed by blasting, for locking containers with cosmetic means, such as shampoos, lotions, detergents etc. Lock for elastic material vessels includes cylindrical part entering vessel neck and forming discharge pipe, with flange connected by joint to cap with valve, and cap opening device positioned opposite to valve. Flange features bushing with lock latching device at its internal surface and with skirt. Bushing is coaxial to cylindrical part and forms annular gap. Skirt features variable elliptic cross-section in height plane with undulating bottom cut. Undulations are located at smaller ellipse axis. A groove is made at the point of flange connection to skirt. Cap features collar matching groove, and discharge pipe is made in the form of conical headpiece as high as 0.6-0.65 of collar height.
EFFECT: enhanced functional reliability of lock in operation.
4 dwg
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