Pole intended to be used as training equipment during walking

Abstract

A pole, intended to be used as training equipment during Nordic pole walking on a surface, includes an outer tube and an inner tube that can be displaced telescopically one inside the other, a handle at the top of the outer tube and a wrist attachment, a spring means that allows the inner tube to slide, under a pre-determined resistance to motion, inside the outer tube to a compressed condition when the pole makes contact with the surface. The spring means comprises an extended elastic element that is so united with the telescopically opposing ends of the outer tube and the inner tube that the elastic element is placed under tension in its tensile direction when the ends of the tubes of the outer tube and the inner tube are inserted one inside the other.

1 . A pole, intended to be used as training equipment when carrying out Nordic pole walking on a surface, comprising:
 an outer tube and an inner tube that can be displaced telescopically one inside the other,   a handle at the top of the outer tube and a wrist attachment,   a spring member that allows the inner tube, under a pre-determined degree of resistance to motion, to slide inside the outer tube towards a compressed condition when the pole makes contact with the surface,   wherein the spring member comprises an extended elastic element that is united with the telescopically opposing parts of the ends of the outer tube and the inner tube in such a manner that the elastic element is placed under tension in its tensile direction when the ends of the outer tube and the inner tube, which are inserted one inside the other, are displaced one inside the other.   
     
     
         2 . The pole according to  claim 1 , whereby the telescopically opposing end parts of the outer tube and the inner tube limit between them a ring-shaped compartment in which the elastic element extends in the axial direction of the pole, between the opposing ends of the tube parts. 
     
     
         3 . The pole according to  claim 1 , further comprising first and second attachment means members that are arranged on diametrically opposing sides of the outer surface of the outer tube and form attachment points for a first and a second end of the elastic element; and another attachment member arranged at the upper tube end of the inner tube with a channel, through which the elastic element can run with one part over the upper tube end of the inner tube.  
     
     
         4 . The pole according to  claim 3 , whereby each of the first and second attachment members forms part of an end fitting attached at the lower end of the outer tube that at the same time forms, with a ring-shaped opening, a guide for the sliding telescopic reception of the inner tube. 
     
     
         5 . The pole according to  claim 1 , whereby the telescopically inserted upper tube end of the inner tube is provided with a piston, which comprises felt. 
     
     
         6 . The pole according to  claim 5 , further comprising a member of limiting motion that through interaction with the piston prevents the upper end of the inner tube from sliding in an uncontrolled manner out from the lower end part of the outer tube and thus out from telescopic interaction with it. 
     
     
         7 . The pole according to  claim 6 , whereby the member of limiting motion comprises a stop screw that is arranged to protrude a certain distance into the ring-shaped compartment in order to interact with the piston. 
     
     
         8 . The pole according to  claim 1 , whereby the extended elastic element comprises a tubular elastic element that extends in the axial direction of the pole between a first piston, that runs inside the inner tube and is attached at the free end of a carrier that protrudes from the outer tube, and a second piston that runs inside the outer tube and is attached at the telescopically active upper end of the inner tube, and in that the said carrier runs through an axial drilled hole in the said second piston. 
     
     
         9 . A pole according to  claim 8 , whereby the carrier comprises a rod that is fixed a certain distance into the outer tube by an attachment member such that the carrier, protruding from the lower end of the outer tube, extends coaxially through the two telescopically active parts of the outer tube and the inner tube.  
     
     
         10 . The pole according to  claim 1 , whereby the inner tube comprises upper and lower pieces of tube that can be telescopically inserted one in the other and which, with the aid of a telescopic lock arranged between the telescopic ends of the tubes, can be locked set at the desired length.