Patent ID: 8221296

Claim:
A base jaw and a top jaw of an implement holding device, said jaws allowing plug-in connection along a rectilinear displacement path and being fitted for that purpose with a cuneal plug-in connector having engaging surfaces configured at a defined wedge angle relative to one another; the top jaw comprising at least one clamping surface pointing in a clamping direction to clamp a tool or a workpiece, the said clamping direction running along the rectilinear displacement path; one of the said jaws comprising at least one plug connector element which is fitted with a wedge rib having an undercut on both sides of the wedge, and the other jaw comprising at least one plug-in connector element fitted with a wedge slot and being open on both wedge sides at its wider slot end to allow inserting the wedge rib; where, due to the undercuts each jaw comprises on each wedge side a lateral slot and a slot rim protrusion, and at least one of the engaging surfaces is constituted in each lateral slot; the slot rim protrusions of the two jaws being made to fit into the lateral slots of the associated other jaw and their engaging surfaces are configured in mutually oblique manner in relation to the wedge angle bounding the depth of engagement of the two jaws when being plugged together, wherein the wedge angle is at least 85° or larger but at most 140°, and the wedge angle apex points in the same radial direction as the clamping surface.