Patent · US Active

Hand-guided power tool with telescoping section

US10302142B2 · kind B2 · utility

7Cited by

8References

20Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Gerd Densborn · Waiblingen, DE
Jan Föhrenbach · Fellbach, DE
Benjamin Barth · Waterloo, CA

Key dates

Filing date	Feb 10, 2016
Grant date	May 28, 2019
Priority date	—
Expiry date	Sep 5, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16B7/14
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.