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:
Sep. 05, 1989
Filed:
Oct. 07, 1988
Franz Glaser, Nuernberg, DE;
Hertel AG Werkzeuge+Hartstoffe, Fuerth, DE;
Abstract
An apparatus to change and chuck a tool head incorporates a chucking system that is arranged in a recess in the drive spindle that chucks a tool-head shank that can be inserted into the accommodating opening. The chucking system incorporates a grip with an axially displaceable spreader and radial guide drillings that accommodate lock balls. The tool-head shank is configured as an annular cylinder and provided with an inside annular groove on the inclined groove side wall of which locking elements, that are arranged on the grip and can be forced apart in a radial direction, outside the lock balls on the grip, interact with corresponding locking surfaces both in the locking direction and in the direction of spread.