Patent ID: 8807152

Claim:
A clamping device for a hiking pole, trekking pole, Nordic walking pole, ski pole or cross-country ski pole, for axially securing in a releasable manner a tube portion that can be pushed into an opening of the clamping device, wherein the clamping device comprises a plastics-material sleeve which engages essentially directly around the tube portion, at least along an axial portion, and clamps the tube portion in a closed state, wherein the plastics-material sleeve, at least in a region engaging around the tube portion, has at least one axial slot, which renders a circumference of the plastics-material sleeve variable in said region, and is of an essentially encircling design in a remaining axial region, wherein a respective first protrusion and second protrusion is arranged on the plastics-material sleeve on either side of said axial slot, wherein said protrusions have a coaxial through-passage opening, which is arranged essentially perpendicularly to an axis of the tube portion and through which engages a transverse pin which, on an outside of the second protrusion, has a stop and, on an outside of the first protrusion, has a rotary pin for a clamping lever, said rotary pin being arranged perpendicularly to an axis of the transverse pin and parallel to the axis of the tube portion, wherein the clamping lever has a lever arm which, with the clamping device closed, engages at least partially around the plastics-material sleeve, and wherein the clamping lever has an eccentric rolling region around the rotary pin, it being possible for a distance between the stop and a counter-surface for the eccentric rolling region, the counter surface being arranged on the outside of the first protrusion, to be reduced by means of said eccentric rolling region for clamping purposes, by virtue of the clamping lever being pivoted into the closed position, and wherein the counter-surface is designed in the form of a metal element facing towards and in contact with said eccentric rolling region, and which metal element is arranged, at least in part, in the first protrusion, in a depression.