METAL-RUBBER WEDGE ANCHOR

摘要

FIELD: mining. ^ SUBSTANCE: metal-rubber wedge anchor consists of a bar, locking bolt and elastic sleeve put on it. Locking bolt is an integral part of the bar. Elastic sleeve is provided with conicity on one of the ends and put with tightness on the locking bolt so that it is borne against the bolt head. Cone part of elastic sleeve is provided with cuts forming petals bent on the ends. Inner sides of petals have a notch with possibility of contacting the bore pit walls. ^ EFFECT: simpler design, technology of installation and improved load-carrying capacity of metal-rubber anchor. ^ 2 cl, 6 dwg