Drilling tool
AssigneeRobert Bosch GmbH
InventorsRainer Widmann, Alexander Volz, Massimo Anghileri, Miriam Kederer, Xiao Qiu
Life of this patent
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Abstract
A drilling tool, in particular a rock drilling tool, for a portable machine tool, includes an axis of rotation, at least one spiral path, and at least one wear surface transition. The at least one spiral path is coiled about the axis of rotation along the axis of rotation and includes at least one wear surface having at least one bandwidth. There is a change in the at least one bandwidth of the at least one wear surface at a position of the at least one wear surface transition.
Claims17
A drilling tool for a portable machine tool, comprising:
- at least one spiral thread wound around an axis of rotation of the drilling tool along the axis of rotation, the at least one spiral thread including a first spiral thread and a second spiral thread, the first spiral thread having at least one wearing surface with at least one width;
- at least one wearing surface transition, at a position of which the at least one width of the at least one wearing surface is changed;
- and
- at least one spiral thread change, at a position of which a number of the at least one spiral threads is changed,
- wherein the second spiral thread merges into the first spiral thread at the at least one spiral thread change, and
- wherein the at least one spiral thread change is at the at least one wearing surface transition.
A method for producing a drilling tool for a portable machine tool, comprising:
- producing at least one spiral thread of the drilling tool with a tool, the at least one spiral thread including a first spiral thread and a second spiral thread,
- wherein the at least one spiral thread is wound around an axis of rotation of the drilling tool along the axis of rotation,
- wherein the first spiral thread includes at least one wearing surface having at least one width, and
- wherein the drilling tool includes at least one wearing surface transition, at a position of which the at least one width of the at least one wearing surface is changed,
- wherein the drilling tool includes at least one spiral thread change, at a position of which a number of the at least one spiral threads is changed,
- wherein the second spiral thread merges into the first spiral thread at the at least one spiral thread change, and
- wherein the at least one spiral thread change is at the at least one wearing surface transition.
Dependencies are inferred from the claim text.