Joints and connections – Interfitted members – Clamped members
Patent
1987-09-10
1988-07-05
Kundrat, Andrew V.
Joints and connections
Interfitted members
Clamped members
403379, 403362, 4034091, B25G 320, F16B 214
Patent
active
047550775
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).
REFERENCES:
patent: 2492815 (1949-12-01), Robinson, Jr.
patent: 3258283 (1966-06-01), Winberg et al.
Komet Stahlhalter-und Werkzeugfabrik Robert Breuning GmbH
Kundrat Andrew V.
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