Hilti Aktiengesellschaft

Hilti Aktiengesselschaft

Udo Hauptmann

Martin Richter

Werner Kleine

Konrad Artmann

Hans-Werner Bongers-Ambrosius

Josef Starkmann

Markus Hartmann

Erwin Manschitz

Franz Popp

Ralf Meixner

Reinhard Schulz

Hanspeter Schad

Josef F&uuml;nfer

Aaron Wiedner

Harald Geiger

Anton Knoller

Steven Moseley

Karl-Heinz Hofmann

Maximilian Knyrim

Tim Pr&ouml;ls

Helmut Specht

Ulrich Mandel

Thorsten Assel

Horst Stroissnigg

Stefan Goetzfried

Peter Sternberger

Tim Pröls

Stefen Götzfried

Matthias Kuemmerle

Josef Bauer

Vera Nuebel

Heinz Gr&uuml;newald

Edwin Schweizer

Rainer Batliner

Constantin Von Saucken

Rainer Kussmaul

Alexander Löffler

Stefan Götzfried

Michael Biedermann

Oswin Burtscher

Tool fitting device for a power tool, in particular a chipping hammer, including a holding device for receiving and holding a tool shank, a tool cap, and a dust protection device for preventing the penetration of dust into the tool fitting device. The tool cap includes at least one receiving element and the dust protection device includes at least one protruding element corresponding to the receiving element, such that the tool cap and the dust protection device are able to be connected together in a form-fitting manner. Dust protection device for use in a tool fitting device.

Dust protection cap with vibration decoupling

Tool fitting device for a power tool, in particular a chipping hammer, including—a holding device for receiving and holding a tool shank, a retention element extending at least around a section or sections of the holding device, and a dust protection device for preventing the penetration of dust into the tool fitting device. The dust protection device includes at least one first dust stripping element, at least one fixing bead, and at least one sealing lip element, wherein the sealing lip element is positioned in front of the retention element in the axial direction. Dust protection device for use in a tool fitting device.

Sealing lip on tool fitting

A power tool, in particular a rotary hammer or combination hammer, containing a percussion-mechanism apparatus for generating percussion pulses on a tool, having a basic body for receiving a rear end of the tool, at least one first and second locking element, each arranged lying in radial openings of the basic body in a reversible manner in a locking position or release position, wherein, in the locking position, the rear end of the tool is held in the basic body and, in the release position, the rear end of the tool can be removed from the basic body, a locking ring for holding the at least first and second locking elements in the locking position, and a press-on element for guiding the at least first and second locking elements in a first axial direction and a second axial direction. The press-on element consists at least partially of an elastic material.

Press-on element for a power tool

A striking-mechanism body of a handheld power tool at least a first part of the striking-mechanism body, having an impact surface and/or a lateral surface of a first material, and a second part of the striking-mechanism body of a second material, and the first material being more resistant than the second material in terms of at least one material characteristic, the striking-mechanism body being configured as a one-piece steel body so that the first material and the second material are the same, and the first material of the first part body undergoes a heat treatment that differs from that of the second material of the second part of the striking-mechanism body, or the first and the second materials are different, and the first and the second parts are joined together.

Striking-mechanism body, striking mechanism and handheld power tool with a striking mechanism

A tool socketfor a hand-held power tool has a tubular main bodyand a dust cap. The main bodyhas an end facethat is adjoined by a cylindrical or prismatic outer surface. As seen in the insertion direction, the dust capconsecutively has a sealing ring, a middle sectionand a seat. As seen in the insertion direction, the sealing ringis arranged in front of the end faceof the main body. The seathas a cylindrical or prismatic inner surfacethat is in contact with the outer surfaceof the main body. The middle sectionhas a conical inner surfacewhose inner diameterdecreases in the insertion directiondown to the inner diameterof the seat

Tool socket

A chuck for a chiseling power tool has a holding sleeve that is arranged concentrically with respect to a working axis and that serves to receive one shank end of a tool having a locking groove. A locking element protrudes partially into the holding sleeve so as to engage with the locking groove. A sliding block guides the locking element, whereby the sliding block has a section that is wound helically around the working axis.

Chuck

A tool receptacle is disclosed. The tool receptacle has a spindle which has a receiving area for receiving a tool and an elongated hole which is open into the receiving area in a radial direction. A barrier element disposed in the elongated hole projects into the receiving area and is movable in the elongated hole. A slider is used for sliding the barrier element to an output-side end of the elongated hole, where the slider is subject to the application of force by a first spring against an insertion direction. A radial limit stop forces the barrier element in the radial direction to engage in the receiving area. The radial limit stop is displaceable to enable a radial movement of the barrier element out of engagement with the receiving area. A second spring applies a spring force to the radial limit stop against the insertion direction.

Tool receptacle

A chuck, which is releasably connectable with a tool spindle (), includes a guide sleeve () having a plurality of openings (), a plurality of locking elements formed as tilt segments () each having an axially fixedly supported, support part () and a radially tiltable locking part () extendable into a respective opening () of the guide sleeve () for engaging the tool spindle (), and a manually displaceable locking sleeve () for radially locking the locking elements.

A power tool () having a striking means (), by which a percussive tool () that can be driven at least partially along an axis (A) struck directly and having a flushing bore () extending at least partially longitudinally through a tool shank (), and having a flushing head () having a radially inwardly open transverse bore hole () connected in a flow-through fashion with a fluid channel (). The flushing head () has at least one hollow cylindrical sleeve-like guide surface (), which is fitted for an insertion end () of the striking tool (). The striking means () sealed by a seal () is cup-like. The striking means () is moveably guided and made fluid tight by the seal () to embrace the machine-side part of the insertion end () having the machine-side open flushing bore ().

Percussive power tool with flushing head

A cup-shaped drill head with an inner conical surface () for force-locking connection with an exterior conical surface () of a driving drill shaft (), which at the leading end changes over into a cup base () with a center point (P), whereby in the change over from the cup base () to the inner conical surface () a lesser curvature (K) is present than at the center point (P).

Cup-shaped rock drill head

A rock drill () for cutting rock comprising an elongated, helical shaft (), which has, at one end, an insertion part () and, at the end opposite, a tool head () with cutters () made of hard material, wherein the helical shaft () is at least partially coated with a colored layer () and the layer forms a lengthwise running wear indicator marking () inside the helical groove ().

Rock drill

A drill head for rock drilling comprising cutting edges () made of hard material, which is detachably connected axially, over a bearing surface (), with a drilling shaft () with at least one radially projecting driver blade () by a bayonet-type connection slot (), wherein at least one connection slot () is present, which forms two axially opposing undercuts (), within which the driver blade () has limited axial movement.

Rock drill head

A rock drilling tool including a tip ( ) formed of a hard material and provided at one end of the tool stem and a shank ( ) provided at an opposite end of the stem ( ) and having a plurality of entrain grooves ( ) extending up to a free end surface of the shank ( ), with an entire recessed surface ( ) of an entrain groove ( ) being larger than an entire outer surface ( ) of a groove-forming rest web ( ), and with a mean rest cross-sectional area (A&prime;), which is measured within an axial section of the drilling tool having a length at least equal to a product of a natural logarithm base and a stem diameter (e&times;D), deviating from a mean rest cross sectional area (A) along the entire tool length maximum by 20%.

Rock drilling tool

A rock drill including a drilling rod ( ), a cup-shaped drilling head ( ) secured to the drilling rod ( ) at one of its ends, and connection elements including at least one radially projecting, entraining web ( ) associated with the drilling rod ( ) and received in at least one axially extending entrain slot ( ) which is formed in an entrain surface of the cup-shaped drilling head ( ) for securing the drilling head ( ) to the drilling rod ( ) for joint rotation therewith and for a limited axial displacement relative thereto.

A rock drill has at least one hard material insert ( ) with at least two cutting edges ( ) consisting of hard material and extending radially to the drill axis (A), whereby, in a radial range of 20% to 50% of their drilling radius, at least two cutting edges ( ) each have an axial recess ( ), and the cutting edges ( ) rotating around the drill axis (A) extend with their cutting edges in their entirety without any gaps over the entire drilling radius.

Growing community of inventors

Landsberg/Lech, Germany

Udo Hauptmann