DUST CATCHER USED IN DRILLING OF OBJECTS Russian patent published in 2009 - IPC B23B47/34 B23Q11/00 B28D7/02 

FIELD: machine building.

SUBSTANCE: invention is related to machine building and may be used for dust removal during drilling. Dust catcher used in drilling of objects comprises body having open lower surface and opening in upper surface, through which drill is inserted. Suction channel for creation of negative internal pressure in body is formed in body and connected to master end of suction hose, the nearest end of which is connected to suction device. Around lower surface of body there is contact element passing, which has high flexibility. Separation partition intended for separation of suction channel and mentioned opening with provision of their independence from each other is installed in body and passes along perimetre. Space installed radially outside separation partition in body is separated with separating wall into upper and lower spaces that are independent on each other. Separation partition has connection opening intended for connection between suction channel and mentioned hole and installed above separation wall.

EFFECT: provides for drilling of opening in area that passes from position near angle to position distanced from angle, and contact of dust catcher side surface during drilling with vertical surface such as wall.

7 cl, 10 dwg