Patent · US Active

Method and pair of pinching jaws for producing a drilling tip

US9347479B2 · kind B2 · utility

0Cited by

7References

9Claims

0Family size

Assignee

Würth International AG · CH

Inventors

Andreas Wunderlich · Wenzenbach, DE
Rainer Eckert · Bad Neustadt an der Saale, DE

Key dates

Filing date	Sep 27, 2013
Grant date	May 24, 2016
Priority date	—
Expiry date	Oct 17, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21K5/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for integrally forming a drilling tip on a wire nail, in particular in order to produce a screw with the aid of a pair of pinching jaws, provides for the bulge formed by the displaced material during the integral forming of the drilling tip to be sheared off the drilling tip along the entire length of the cutting edges of the drilling tip produced and to be left connected to the drilling tip only along the longitudinal side edges of the latter by a predetermined breaking point.

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