Hilti Aktiengesellschaft

Hilti Aktlengesellschaft

Klaus-Peter Bohn

Markus Hartmann

Bastian Pluemacher

Carsten Peters

Roland Foser

Helene Wesseler

Michael Brunner

Thilo Hammers

Werner Kleine

Till Cramer

Donato Clausi

Maria Zivcec

Steven Moseley

Zsolt Kosa

Peter Mugg

Stefan Grasberger

Luis Fernando Garcia

Alfred Lammer

Miriam Marxer

Bastian PLÜMACHER

Helene Wesseler Geb Kaps

A portable power tool has a tool holder, a motorand an electro-pneumatic striking mechanism. The striking mechanism includes an excitation piston, a striker, a pneumatic chamberfor coupling the strikerto the excitation pistonand an anvilwhich is arranged in the striking directiondownstream of the strikerand is provided for transmitting a blow of the striker to the tool. The anvil is hollow. The hollow interior spaceis closed in the striking directionand counter to the striking direction

Portable power tool

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.

Drill for chiselling rock

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.

Drill for chiseling stone

Control method for a dust extraction module () for a chiseling tool (), including the following steps: using a fan () of the dust extraction module () to draw in an air flow Q from a certain place of a substrate () being worked by the tool (), using a material detector () to identify the material M at the place of the substrate being worked by the tool (), and adapting the suction power of the dust extraction module () 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 M, whereas the air flow Q is less than the rated value Qo in the case of a material Mcontaining iron.

Control method and dust extraction module

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

Control method and borehole flushing module

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.

Drill bit for chiselling rock

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.

Control method and portable power tool

A drill bithas a drill headand a shank. The shankhas a body, an add-on partand an internal channel. The drill headis attached to the body. The add-on partis attached to a lateral surfaceof the bodyand arranged completely within a cylindrical envelopethat circumscribes the body. The internal channel is configured within the add-on part and/or between the add-on partand the lateral surface

Drill bit and production method

A production process is provided for a drill including the following steps. From a rod-shaped blank comprising an end section, a central section, and a hollow space extending at least through the end section and the central section along an axis of the blank, the end section is formed in a direction extending radially relative to the axis, the diameter of the hollow space in the end section being reduced. Either a cutting element is attached to the end section or grooves are introduced into the end section for forming a shank.

Hollow drill and a production process for the same

A segmental hard material insert for a working tool has a planar polycrystalline diamond layer () having, in its layer plane, a main cutting element () and a contact edge () located opposite the main cutting element, with the main cutting element () having two, facing outwardly, convex cutting sections () and a smooth, facing outwardly, concave transitional region () connecting the two convex cutting sections (), and with the apex () of the transitional region () being located on a central line of the main cutting element ().

Growing community of inventors

Schaanwald, Liechtenstein

Klaus-Peter Bohn