US 11,717,941 B2
Tool or workpiece holder
Josef Greif, Friesenried (DE); Wolfgang Bechteler, Ebenhofen (DE); Conrad Rösch, Pfronten (DE); and Maximilian Horn, Wertach (DE)
Assigned to Ott-Jakob Spanntechnik GmbH, Lengenwang (DE)
Filed by Ott-Jakob Spanntechnik GmbH, Lengenwang (DE)
Filed on Aug. 2, 2021, as Appl. No. 17/391,116.
Claims priority of application No. 10 2020 120 525.2 (DE), filed on Aug. 4, 2020.
Prior Publication US 2022/0040821 A1, Feb. 10, 2022
Int. Cl. B25B 5/10 (2006.01); B23B 29/04 (2006.01)
CPC B25B 5/10 (2013.01) [B23B 29/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tool or workpiece holder comprising a receiving body and a clamping device for clamping a tool or a workpiece in a receiving opening of the receiving body, wherein the clamping device has a first clamping element, which is movable in a receiving portion of the receiving body at right angles to a central axis of the receiving opening, and a second clamping element, which is movable relative to the first clamping element at right angles to the central axis of the receiving opening by an actuating element configured as a clamping screw having a first left-hand thread and a second right-hand thread, the second clamping element having a conical bottom clamping surface configured for inserting the tool or workpiece into the receiving opening, and wherein, disposed on the first clamping element is an ejecting mechanism including an ejection element, having a conical top ejecting surface, disposed on a bottom side of the first clamping element, the ejection element configured for ejecting the tool or workpiece from the receiving opening when the first and second clamping elements are moved into a disengaged position.