Patent · US Active

Insertion end for a rotary and a percussive tool

US7429154B2 · kind B2 · utility

13Cited by

12References

12Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Werner Kleine · Achim, DE
Werner Britten · Riegelsberg, DE

Key dates

Filing date	Dec 2, 2004
Grant date	Sep 30, 2008
Priority date	—
Expiry date	Jul 18, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/907
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An insertion end of a tool is driven along an axis at least partially rotary or percussively, which extends along the axis within a maximum guide diameter. At least one longitudinally closed locking groove and rotary driving groove is longitudinally closed at a longitudinal locking end towards the free leading end. The rotary driving groove has a groove width with at least one tangential force contact surface. At least two rotary driving grooves have a length of at least three times that of the guide diameter are arranged on the tool-side ahead of the longitudinal locking end, and have a contact length at least 1.5 times the guide diameter configured to be one fifth of the guide diameter.

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