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:
Jul. 05, 1988
Filed:
Sep. 10, 1987
Otto Eckle, Loechgau, DE;
Komet Stahlhalter-und Werkzeugfabrik Robert Breuning GmbH, Besigheim, DE;
Abstract
In a device for connecting two tool parts (1, 4) one tool part (1) is provided with a cylindrical fitting plug (2) which can be inserted in a fitting bore (5) provided in the other tool part (4). The fitting plug (2) has a transverse bore (6) with a radially displaceable tensioning pin (7) therein, which carries extensions (8) at its two ends, which engage in conical recesses (11) of two diametrically opposite tensioning elements (9, 10) arranged in the other tool part (4). The extensions (8) of the tensioning pin (7) have a hemispherical peripheral surface (8a) whose radius of curvature (R) as well as the apex angle (.alpha.) of the conical recesses (11) are so dimensioned that the hemispherical peripheral surface (8a) and the conical recess (11) touch at a force contact point (P) which lies radially spaced (r1, r2) from the free ends (8b, 9a, 10a) of the extensions (8) and the tensioning elements (9, 10), and that the lines of action (W) of the forces (K) acting at the two force contact points (P) extend at an angle (.beta.) at approximately 30.degree.-60.degree., preferably approximately 45.degree., to the axis (A2) of the transverse bore (6).