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公开(公告)号：US11125019B2
公开(公告)日：2021-09-21
申请号：US16626213
申请日：2018-06-20
摘要： A drill bit for chiselling rock includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a plurality of cutting faces, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. The intake opening has a noncircular cross section.
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公开(公告)号：US11338425B2
公开(公告)日：2022-05-24
申请号：US16342101
申请日：2017-10-17
摘要： 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.
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公开(公告)号：US11850716B2
公开(公告)日：2023-12-26
申请号：US16626184
申请日：2018-06-19
IPC分类号： B25D17/02
CPC分类号： B25D17/02 , B25D2217/0003 , B25D2217/0057 , B25D2222/72
摘要： A drill bit for chiselling rock includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has a cutting edge, an intake opening, and an intake passage and where the intake passage connects the intake opening to the delivery passage. A first portion of the intake passage which adjoins the intake opening has a first inclination with respect to a drill bit axis, a second portion of the intake passage which adjoins the hollow shank has a second inclination with respect to the drill bit axis, and the second inclination is greater than the first inclination.
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公开(公告)号：US11691204B2
公开(公告)日：2023-07-04
申请号：US16626257
申请日：2018-06-20
CPC分类号： B23B51/02 , B25D17/02 , B25D17/20 , B28D1/146 , B28D1/26 , E21B10/36 , B23B2222/28 , B23B2226/75 , B23B2251/68 , B25D2217/0003 , B25D2222/51
摘要： A drill bit for chiseling stone includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a cutting edge, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. A cross section of the intake passage increases from the intake opening to the delivery passage.
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公开(公告)号：US11123855B2
公开(公告)日：2021-09-21
申请号：US16341389
申请日：2017-10-12
发明人： Markus Hartmann , Klaus-Peter Bohn , Bastian Pluemacher , Michael Brunner , Helene Wesseler , Carsten Peters
摘要： 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).
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公开(公告)号：US10906166B2
公开(公告)日：2021-02-02
申请号：US16061990
申请日：2016-12-06
发明人： Carsten Peters , Helene Wesseler , Markus Hartmann , Klaus-Peter Bohn , Thilo Hammers , Bastian Pluemacher
摘要： 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.
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