Hilti Aktiengesellschaft

Ulrich Mandel

Udo Hauptmann

Josef Fünfer

Uto Plank

Josef FÜNFER

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

Hammer drill and/or chipping hammer having a drive motor, an impact mechanism and a tool fitting for fitting a tool, wherein the impact mechanism has an anvil that is axially displaceable in an anvil guide and acts on the tool, wherein the impact mechanism has an idle-strike damper element and a rebound-strike damper element, which are formed in one piece with one another and as such form a combined damper element, wherein the anvil guide is arranged outside, preferably only outside the combined damper element.

Impact mechanism arrangement

Hammer drill and/or chipping hammer () having a drive motor (), an impact mechanism () and a tool fitting () for fitting a tool (), wherein the impact mechanism () has an anvil () that is axially displaceable in an anvil guide () and acts on the tool (), wherein the impact mechanism () has an idle-strike damper element (), which acts between the anvil () and the tool fitting (), and wherein the impact mechanism has a guide housing (), which engages at least partially around the anvil () and/or the tool fitting (), wherein an additional idle-strike damper element () is provided, which acts between the tool fitting () and the guide housing ().

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Munich, Georgia

Ulrich Mandel