RIM MADE OF COMPOSITE MATERIAL FOR WHEEL OF BICYCLE

摘要

PURPOSE: To provide an economical, tough, and light-weight wheel rim for bicycles and the likes which is made of synthetic materials and includes a type comprising a rim section and two adjacent box-like structure bodies having a common wall and each being constituted of a core and a rigid envelope. CONSTITUTION: Two box-like structure bodies 2, 3 comprises a core 5 made of a cellular structure material closely attached to an envelope made of a composite woven cloths of impregnated synthetic fibers by an adhesive. One of the box-like structure bodies composes the rim body and the other composes an outside circumferential rim section for fitting a tire in.