Patent · US Expired

Rotatable cutter spindle

US4260002A · kind A · utility

4Cited by

7References

14Claims

0Family size

Assignee

Hombak Maschinenfabrik GmbH & Co. KG · DE

Inventors

Karl H. Schmalz · Düsseldorf, DE
Arnold Schmidt · Minden, CA
Karl H. Ulrich · Stromberg, DE

Key dates

Filing date	May 15, 1978
Grant date	Apr 7, 1981
Priority date	—
Expiry date	May 15, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T407/1962
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A rotatable cutter spindle for cutting chips of predetermined length has a supporting body having an axis, and a plurality of cutters mounted on the body in spaced relationship to one another and inclined relative to the axis of the body. Each of the cutters includes an acute angle with the axis and has a leading and a trailing end and defines cutting angles which differ from one to another of these ends. Each of the cutters has alternately arranged radially outer cutting edges and radially inner cutting edges of which the radially inner cutting edges are formed by grooves which are provided in the cutters and which have a width that increases from the leading end toward the trailing end of the cutter. The radially outer cutting edges are arranged at a first common circular surface, whereas the radially inner cutting edges are arranged at a second common circular surface.

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