Patent ID: 8496018

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 same in the closed state, wherein the plastics-material sleeve, at least in the region engaging around the tube portion, has at least one axial slot, which renders the circumference of the plastics-material sleeve variable in this region, and is of essentially encircling design in the remaining axial region, wherein a respective protrusion is arranged on the plastics-material sleeve on either side of this slot, wherein these protrusions have a coaxial through-passage opening, which is arranged essentially perpendicularly to the axis of the tube portion and through which engages a transverse pin which, on the outside of the second protrusion, has a stop and, on the outside of the first protrusion, has a rotary pin for a clamping lever, this pin being arranged perpendicularly to the 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 the distance between the stop and a counter-surface, which is arranged on the outside of the first protrusion, to be reduced by means of this rolling region for clamping purposes, by virtue of the clamping lever being pivoted into the closed position, wherein the counter-surface is designed in the form of a metal element which is arranged, at least in part, in the first protrusion, in a depression, and wherein the metal element is designed in the form of a metal band which encircles the outside of the plastics-material sleeve, on the side located opposite the protrusions, and of which the first end is arranged on the outside of the first protrusion, the outside being directed toward the rolling region, in a depression and has a first aperture or a through-opening for the transverse pin, the central region of which band runs around the plastics-material sleeve, and the second end of which band is arranged on the outside of the second protrusion, this outside being directed toward the stop, and has a second aperture or a through-opening for the transverse pin and/or a stop element.