公开(公告)号：US20190247991A1

公开(公告)日：2019-08-15

申请号：US16342101

申请日：2017-10-17

Applicant: Hilti Aktiengesellschaft

Inventor： Markus HARTMANN ,  Klaus-Peter BOHN ,  Bastian PLUEMACHER ,  Thilo HAMMERS ,  Michael BRUNNER

IPC: B25D17/20 ,  B23Q11/00

CPC classification number: B25D17/20 ,  B23Q11/0046 ,  B23Q17/00 ,  B25D16/00 ,  B25D2217/0057 ,  B25D2222/72 ,  B25D2250/195 ,  B25D2250/201 ,  B25D2250/221 ,  B25D2250/265

Abstract: Control method for a dust extraction module (2) for a chiseling tool (5), including the following steps: using a fan (18) of the dust extraction module (2) to draw in an air flow Q from a certain place of a substrate (31) being worked by the tool (5), using a material detector (24) to identify the material M at the place of the substrate being worked by the tool (5), and adapting the suction power of the dust extraction module (2) as a function of the identified material M in order to set the air flow Q. The air flow Q is greater than or equal to a rated value Qo in the case of an iron-free mineral material M1, whereas the air flow Q is less than the rated value Qo in the case of a material M2 containing iron.

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.