TOOTH CONSTRUCTION Russian patent published in 2014 - IPC B02C4/30 B02C17/00 

FIELD: medicine.

SUBSTANCE: group of inventions relates to a tooth construction, a tooth unit and a drum device, which can be used in a mineral breaker. The tooth construction contains a case, which is made tooth-shaped, installed in the case envelope and a breaking element, installed on the envelope and forming together with it an external contour of the tooth. The case has the front side, opposite to it back side and two opposite lateral sides located between them. The envelope is formed by a casing, which has the front wall, opposite lateral walls and the upper wall, applied respectively on the front, lateral and upper sides of the case and configured with a possibility of being in the surface contact with the respective said sides. The breaking element contains a striking part, which has the back side, which is in the surface contact with the front wall of the casing, attached to it, and protruding from it forward, and the upper part, extending back from the striking part and having the lower side, which is in the surface contact with the upper wall of the casing and attached to it.

EFFECT: possibility to transfer quite considerable effort, required for breaking very hard minerals, with reduced risk of the tooth breaking and separation of the tooth envelope or casing, is provided.

20 cl, 7 dwg