Dust-collector suction nozzle and rotating-tool dust collection tool including the same
AssigneeCOBALTECH Co., Ltd.
InventorMasanobu TAKEMATA
Life of this patent
Estimating the term…
Abstract
A dust-collector suction nozzle for a rotating-tool dust collection tool attached to a rotating tool including a core drill collects cutting chips. The nozzle includes a nozzle body rotatably and axially supported by a bearing member, a drill coupling portion at a front end, and a rotating-tool coupling portion at a rear end. At least one suction passage extends from a front end surface through the nozzle body, and a plurality of communication holes extend from an outer circumferential surface to communicate with the suction passage. The communication holes are arrayed along a circumferential direction, with opening positions alternately displaced back and forth in an axial direction.
Claims2
A dust-collector suction nozzle configured to be used in a rotating-tool dust collection tool that is attached to a rotating tool including a core drill and that collects cutting chips, wherein:
- the dust-collector suction nozzle comprises a nozzle body that is axially supported in a rotatable manner by a bearing member of the rotating-tool dust collection tool, a drill coupling portion for coupling the core drill to a front end of the nozzle body, and a rotating-tool coupling portion for coupling the rotating tool to a rear end of the nozzle body;
- and
- in the nozzle body, at least one or more suction passages that extend from a front end surface on a side of the drill coupling portion and that pass through an interior of the nozzle body and a plurality of communication holes that extends from an outer circumferential surface of the nozzle body and that communicates with the suction passage are formed, and the communication holes are disposed such that the communication holes are arrayed along a circumferential direction of the nozzle body and opening positions of the communication holes are displaced alternately back and forth in an axial direction of the nozzle body.
Dependencies are inferred from the claim text.