Sealing lip on tool fitting
AssigneeHilti Aktiengesellschaft
InventorsUdo Hauptmann, Ulrich Mandel
Life of this patent
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Abstract
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.
Claims16
A tool fitting device for a power tool, the tool fitting device comprising:
- a holder for receiving and holding a tool shank;
- a retainer extending at least around a section or sections of the holder;
- and
- a dust protector for preventing the penetration of dust into the tool fitting device, the dust protector including at least one first dust stripper, at least one fixing bead having a radial length configured to extend radially into the holder, and at least one sealing lip, the sealing lip being positioned in front of the retainer in the axial direction, the sealing lip bearing against a surface of the holder, wherein the sealing lip is configured with respect to the fixing bead so as to define a free space between the fixing bead and the sealing lip along the outer surface of the holder, the holder not extending into the free space.
Dependencies are inferred from the claim text.