Kinetic section for a skating device

Abstract

A kinetic section for a skating device comprising at least one ball and at least one roller, wherein the ball is adapted to be in contact with the roller at least at one point or contacting surface; and the ball is adapted to transfer an angular momentum to the roller; and a minimum coefficient of kinetic friction between the ball and a contacting surface of the roller is 0.16, preferably at least 0.20, more preferably at least 0.25, even more preferably at least 0.29 and/or the maximum coefficient of kinetic friction between the ball and the contacting surface of the roller is 0.50, preferably at most 0.40, preferably at most 0.45, more preferably at most 0.35, and even more preferably at most 0.31.

1 - 20 . (canceled) 
     
     
         21 . A kinetic section for a skating device comprising a ball and a roller, wherein
 (a) the ball is configured to be in contact with the roller at one point or at a contacting surface;   (b) the ball is adapted to transfer an angular momentum to the roller, further, the roller is configured to support the ball; and   (c) a coefficient of kinetic friction between the ball and a contacting surface of the roller is in a range of 0.20 to 0.45.   
     
     
         22 . The kinetic section for a skating device according to  claim 21 , further comprising two or more bearings which are configured to hold in place the ball, each bearing comprising one or a combination of:
 (a) a sliding surface; and/or   (b) a roller shaped as a barrel; and/or   (c) a roller shaped in an hourglass form; and/or   (d) a roller cylindrically shaped; and/or   (e) the ball supported by a chassis.   
     
     
         23 . The kinetic section for a skating device according to  claim 22 , wherein the two or more bearings are supported by the chassis extending more than half of the ball. 
     
     
         24 . The kinetic section for a skating device according to  claim 22 , wherein the ball rests in a recess being correspondingly shaped to the ball. 
     
     
         25 . The kinetic section for a skating device according to  claim 22 , wherein two or more rollers are positioned substantially above the ball, such that, their axles being arranged at an angle a, wherein a is in a range of α≥10° to α≤25°. 
     
     
         26 . The kinetic section for a skating device according to  claim 22 , wherein two or more rollers in the shape of a truncated right circular cone are positioned with their smaller diameter faces oriented to each other above the ball, and further, their apex angle (δ) comprising a range of δ≥10° to -δ≤25°. 
     
     
         27 . The kinetic section for a skating device according to  claim 22 , wherein a coefficient of kinetic friction between the ball and the bearing is in a range of 0.40 to 0.75. 
     
     
         28 . The kinetic section for a skating device according to  claim 22 , wherein a coefficient of kinetic friction between the ball and the ground is in a range of 0.40 to 0.80. 
     
     
         29 . The kinetic section for a skating device according to  claim 22  wherein the ball is configured to be in contact with the roller at two or more points or at contacting surfaces or at an elliptical surface. 
     
     
         30 . A skating device comprising the kinetic section according to  claim 22  and a support for fixing a boot. 
     
     
         31 . A method for manufacturing a kinetic section for a skating device particularly according to  claim 21 , comprising the following steps:
 (a) providing a kinetic section with a ball and a roller;   (b) bringing the ball in contact with the roller at two or more points or a contacting surface or an elliptical surface;   (c) facilitating the ball to transfer an angular momentum to the roller; and   (d) configuring a coefficient of kinetic friction between the ball and the contacting surface of the roller to be in a range of 0.20 to 0.40.   
     
     
         32 . The method of  claim 31 , further providing two or more bearings which are configured to hold in place the ball, each bearing providing one or a combination of:
 (a) a sliding surface; and/or   (b) a barrel-shaped roller; and/or   (c) an hourglass shaped roller; and/or   (d) a cylinder-shaped roller; and/or   (e) the ball supported by a chassis.   
     
     
         33 . The method of  claim 32 , wherein the bearings are supported by the chassis extending more than half the ball. 
     
     
         34 . The method of  claim 32 , wherein the ball rests in a recess being correspondingly shaped to the ball. 
     
     
         35 . The method of  claim 32 , wherein the rollers in substantially cylindrical or hourglass or barrel shape are positioned substantially above the ball, their axles being arranged at an angle of α, wherein α is in a range of ≥10° to 25°. 
     
     
         36 . The method of  claim 35 , wherein the rollers in the shape of a truncated right circular cone, are positioned with their smaller diameter faces oriented to each other, are substantially above the ball, with their apex angle (δ) comprising a range of 10° to 25°. 
     
     
         37 . The method of  claim 32 , wherein the method comprises the further step of allowing a coefficient of kinetic friction between the ball and the bearing to be in a range of 0.40 to 0.75. 
     
     
         38 . The method of  claim 32 , wherein the method comprises the step of allowing a coefficient of kinetic friction between the ball and ground to be in a range of 0.40 to 0.80. 
     
     
         39 . A method of  claim 32  comprising the step of allowing the ball to be adapted to be in contact with the roller at two points or contacting surfaces, or at one elliptical surface. 
     
     
         40 . A method of  claim 32 , allowing the skating device to further comprise a support for fixing a boot.