Patent · US Active

Holder for a rotary tool, for example one hole saw

US10661354B2 · kind B2 · utility

1Cited by

10References

19Claims

0Family size

Assignee

KAPMAN AB · SE

Inventors

Erik Grindlund · Enköping, SE
Per Holm · Linköping, SE
Tomas Ivner · Säter, SE
Nils Classon · Lidköping, SE

Key dates

Filing date	Apr 21, 2017
Grant date	May 26, 2020
Priority date	—
Expiry date	Apr 21, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/95
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Holder for a rotary tool which holder is formed with a holder body comprising a rear drive end and a front connection end having a connection thread for the connection of the tool. The holder comprises a thrust collar having a flat contact surface facing a connection end of the holder. The holder comprises an axially movable operating means, a number of restraint elements placed in one or more spaces in the holder body which restraint elements in a first axial position of the operating means are prevented from radial movement in said spaces and which restraint elements in a second axial position of the operating means allow radial movement in said spaces. Each one of said spaces for the restraint elements is limited in the axial direction by a front limiting wall and a rear limiting wall, which two limiting walls are parts of the holder body.

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