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:
May. 24, 2016
Filed:
Apr. 11, 2011
Anders Johnsen, Borlänge, SE;
Anders Johnsen, Borlänge, SE;
Other;
Abstract
A coupling device for coupling together a tool holder () with a rotatable spindle () of a machining machine. The coupling device comprises: —a female-shaped coupling part () with an internally cone-shaped section () and a male-shaped coupling part () with an externally cone-shaped section (); —an annular groove () arranged in the externally cone-shaped section; —locking balls (), which are radially displaceable in radial holes () in the internally cone-shaped section; and —a locking sleeve (), which is arranged on the outside of the female-shaped coupling part and which is rotatable between a releasing position, in which the locking balls can be displaced radially to a retracted position while allowing a mutual axial displacement between the coupling parts, and a locking position, in which the locking balls are kept in engagement in said groove while preventing a mutual axial displacement between the coupling parts. The locking sleeve is provided with radially springing guide members (), which co-operates with a respective locking ball.