RIM STRUCTURE OF WHEEL WITH SPOKE FOR BICYCLE

摘要

PROBLEM TO BE SOLVED: To prevent the deformation of a rim by providing a radial reinforcing wall displaced from the median plane of the rim in a cavity of a hollow structure so as to connect a radial inner wall and a radial outer wall to each other through this reinforcing wall. ;SOLUTION: A hollow structure forming a rim 1 is provided with a reinforcing wall 18 for connecting an inner wall 2 and an outer wall 3 to each other. This reinforcing wall 18 is extended between the inner wall 2 and the outer wall 3 along the radial direction, and provided at a position displaced from the median plane 13 of the rim 1 and opposite to a flat surface 15 facing to a spoke. With this structure, a horizontal component applied by the tensile force of the spoke is transmitted to the reinforcing wall 18 and a side wall 4 so as to stabilize the cross sectional shape of the rim 1. Namely, offset of the flat surface 15 facing to the spoke from the median plane 13 is fixed, and while the rotation of the cross section of the rim 1 by the tensile force of the spoke can be prevented.;COPYRIGHT: (C)1999,JPO