公开(公告)号：US20180370008A1

公开(公告)日：2018-12-27

申请号：US16061990

申请日：2016-12-06

Applicant: HILTI AKTIENGESELLSCHAFT

Inventor： Carsten PETERS ,  Helene WESSELER ,  Markus HARTMANN ,  Klaus-Peter BOHN ,  Thilo HAMMERS ,  Bastian PLUEMACHER

IPC: B25D16/00 ,  B25D17/06 ,  B25D11/06 ,  B25F5/00

Abstract: A control method for a bore-chiseling portable power tool for machining a substrate by a drill bit includes superimposing a periodic striking on the drill bit at an impact rate and a rotating of the tool holder at a rotational speed in a rotational direction, identifying a material of the substrate being machined by the drill bit by a sensor, adjusting the rotational speed and/or the rotational direction to a first rotational speed and a first rotational direction when the identified material is an iron-based material, and adjusting the rotational speed and/or the rotational direction to a second rotational speed and a second rotational direction when the identified material is a mineral material. The first rotational speed is less than the second rotational speed and the first rotational direction is counter-clockwise and the second rotational direction is clockwise.

公开(公告)号：US20200055173A1

公开(公告)日：2020-02-20

申请号：US16341389

申请日：2017-10-12

Applicant: Hilti Aktiengesellschaft

Inventor： Markus HARTMANN ,  Klaus-Peter BOHN ,  Bastian PLUEMACHER ,  Michael BRUNNER ,  Helene WESSELER ,  Carsten PETERS

IPC: B25D17/20 ,  B23Q11/00 ,  B23Q17/20

Abstract: A control method for a borehole flushing module (2) for a chiseling tool (5), includes the steps: Providing fine-grain particles in a dispenser (31); ascertaining a material (M) at a location processed by the tool (5) with the aid of a material detector (37); and introducing fine-grain particles at the location of the substrate processed by the tool (5) when the material detector (37) ascertains an iron-containing material (M2).