Patent ID: 6182529
Filing Date: 2001-02-06
Classification: A61G,B62B,Y10T

Abstract:
An ergonomically correct handlebar adapted and arranged to be connected to two spaced and parallel handles separated by a predetermined distance, said handlebar comprising an elongated hollow tube having a first end located at point A and a second end spaced from point A and located at point A', said tube being bent and shaped between its said ends at a series of points B, B', C, C', D, and D' located between points A and A', so that respective positions of points A, A', B, B', C, C', D, D' are defined by a following table of cylindrical coordinates, where height is measured along a B-B' axis and substantially equal in its greatest distance to a predetermined distance between two spaced and parallel handles on which said handlebar is adapted to fit, radius is measured as distance from said B-B' axis, and an angle is measured as rotation about said B-B' axis:Table of Cylindrical Coordinates Point Height Radius Angle A x a 0 B x 0 0 C x - y 0 0 D x - (y + z) b 30-60.degree. D' y + z b 30-60.degree. C' y 0 0 B' 0 0 0 A' 0 a 0where x=2y+2z+w, w is a distance between points D and D', and y, z, and w are each greater than zero, and angles at which said tube is bent at points B, B', C, C', D, and D' are determined by a following table of angles:Table of Angles Angle Degrees A-B-C 90 B-C-D 120-150 C-D-D' 120-150 D-D'-C' 120-150 D'-C'-B' 120-150 C'-B'-A' 90said handlebar being further characterized in that:(a) a portion of said hollow tube between points A and B and a portion of said hollow tube between points A' and B' are mutually parallel and adapted and arranged to fit two spaced parallel handles, (b) a portion of said hollow tube between points C and D is a first non-horizontal gripping station adapted to be grasped by a right human hand, said first gripping station being oriented so as to relieve strain on a right wrist and right forearm of a person gripping said first gripping station with a right hand, and (c) a portion of said tube between points C' and D' is a second non-horizontal gripping station adapted to be grasped by a left human hand, said second gripping station being oriented so as to relieve strain on a left wrist and left forearm of a person gripping said second gripping station with a left hand.