The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2005
Filed:
Jun. 05, 2002
Henrik Eriksson, Alunda, SE;
Henrik Eriksson, Alunda, SE;
Sandvik AB, Sandviken, SE;
Abstract
A rotatable tool includes a shaft and a cutting head mounted thereto. The shaft defines a longitudinal axis of rotation and has a seat formed at a front end thereof which includes a first engagement surface. The cutting head is attached on the seat and includes a second engagement surface engaging the first engagement surface for longitudinally locking the cutting head to the shaft. The first and second engagement surfaces include respective first and second support surfaces which together form a planar interface, the interface defining a contact line when viewed longitudinally toward a front end of the tool. The contact line intersects an outer periphery of the cutting head at a point. The contact line extends from the point in a direction forming an acute angle with a radius that intersects the point. The contact line is disposed rotationally ahead of the radius with reference to rotation of the tool. The cutting head is attached to the shaft in response to relative rotation therebetween, whereupon respective longitudinal undercuts formed by the support surfaces engage one another, and a snap action occurs between respective portions of the engagement surfaces, to resist longitudinal and rotational dislodgement of the cutting head.