Patent attributes
A power tool is provided with a drive motor and a tool unit with a tool driven by the drive motor. A guide tube with telescoping section with external and internal tubes is provided, wherein the internal tube is longitudinally slidable within the external tube. A clamping device secures the internal tube relative to the external tube and has a clamping member supported rotatably relative to the internal tube and connected by a thread connection to the external tube. The clamping device is provided with a clamping ring with an opening arranged about an outer circumference of the internal tube. Compression of the clamping ring in longitudinal guide tube direction effects a size reduction of the clamping ring opening. The clamping ring has a first axial face supported relative to the external tube and a second axial face supported relative to the clamping member.
