Impact mechanism arrangement
AssigneeHilti Aktiengesellschaft
InventorsUlrich Mandel, Josef Fünfer
Life of this patent
Estimating the term…
Abstract
Hammer drill and/or chipping hammer (100) having a drive motor (70), an impact mechanism (10) and a tool fitting (50) for fitting a tool (110), wherein the impact mechanism (10) has an anvil (30) that is axially displaceable in an anvil guide (20) and acts on the tool (110), wherein the impact mechanism (10) is equipped with an idle-strike damper element (11) and a rebound-strike damper element (13), wherein the idle-strike damper element (11) and/or the rebound-strike damper element (13) is/are integrated on the anvil (30).
Claims16
A hammer drill or chipping hammer comprising:
- a drive motor;
- an impact mechanism;
- and
- a tool fitting for fitting a tool, wherein the impact mechanism has an anvil axially displaceable in an anvil guide and acting on the tool, wherein the impact mechanism is equipped with an idle-strike damper element and a rebound-strike damper element, the idle-strike damper element or the rebound-strike damper element being integrated on the anvil;
- wherein the impact mechanism has a guide housing engaging at least partially around the anvil or the tool fitting;
- and
- wherein the tool fitting is movable in an axial direction relative to the guide housing.
A hammer drill or chipping hammer comprising:
- a drive motor;
- an impact mechanism;
- and
- a tool fitting for fitting a tool, wherein the impact mechanism has an anvil axially displaceable in an anvil guide and acting on the tool, wherein the impact mechanism is equipped with an idle-strike damper element and a rebound-strike damper element, the idle-strike damper element or the rebound-strike damper element being integrated on the anvil;
- wherein the combined damper element is surrounded by a stop sleeve arranged so as to strike an idle-strike stop surface on one side and to strike a rebound-strike stop surface on the other side;
- and
- wherein the idle-strike stop surface is formed on the tool fitting itself.
A hammer drill or chipping hammer comprising:
- a drive motor;
- an impact mechanism;
- and
- a tool fitting for fitting a tool, wherein the impact mechanism has an anvil axially displaceable in an anvil guide and acting on the tool, wherein the impact mechanism is equipped with an idle-strike damper element and a rebound-strike damper element, the idle-strike damper element or the rebound-strike damper element being integrated on the anvil;
- wherein the impact mechanism has a guide housing engaging at least partially around the anvil or the tool fitting;
- wherein the impact mechanism has an additional idle-strike damper element acting between the tool fitting and the guide housing.
Dependencies are inferred from the claim text.