ROLLER SKATE BLADE AND SHARPENING THEREOF

FIELD: accessories for skates.SUBSTANCE: roller mounting apparatus for an in-line roller skate blade comprises a body having a footwear connector portion, a spacing portion adjacent the footwear connector portion and a roller mounting portion adjacent the spacing portion. Roller mounting portion has roller mounts for mounting a plurality of rollers in tandem spaced apart positions such that contact points on outer surfaces of the rollers will lie on a first common curved line having no portion with a radius of curvature more than about 10 m, so that a contact point on a surface of a roller immediately adjacent to any given roller is spaced apart between about 0.1 mm to about 13 mm from a line tangent to the curved line at a point defined by the contact point of the given roller. Roller blade comprising the roller mounting apparatus is also disclosed. There is also disclosed a method of sharpening an outer circumferential surface of a rotatable roller of a roller blade by causing an outer circumferential surface of a rotating grinding implement to contact the outer circumferential surface of the rotatable roller at a contact point such that a grinder plane containing the contact point and a rotation axis of the rotating grinding implement is disposed at an angle to a roller plane containing the contact point and a rotational axis of the roller.EFFECT: also disclosed is a method of sharpening an outer circumferential surface of a rotatable roller by causing an outer circumferential surface of a rotating grinding implement to contact the outer circumferential surface of the rotatable roller such that the rotating grinding implement drives the roller in a first direction of rotation while causing a contact surface of a rotating drive wheel to contact the roller to cause the roller to rotate in a second direction against the first direction of rotation to cause relative movement between the roller and the outer circumferential surface of the grinding implement.11 cl, 22 dwg Крепежное устройство роликов для лезвия линейного роликового конька содержит тело, содержащее часть крепления к обуви, промежуточную часть, прилегающую к части крепления к обуви, и крепежную часть роликов, прилегающую к промежуточной части. Крепежная часть роликов имеет держатели роликов, предназначенные для крепежа нескольких роликов в последовательно разнесенных положениях так, что точки контакта на наружных поверхностях роликов будут лежать на первой общей кривой, не имеющей части с радиу