Patent ID: 6689004
Filing Date: 2004-02-10
Classification: F16G

Abstract:
A continuously-variable-ratio transmission belt (1) comprising an endless belt element (2) having a body (5) of elastomeric material and a number of longitudinal cord inserts (8); and a number of separate friction blocks (3) made of plastic material, fixed to said endless belt element (2), and each friction block defined by two lateral surfaces (4) converging inwards of said belt (1); characterized in that said endless belt element (2) comprises inner teeth (6) defined by a number of first teeth (10) alternating with respective cavities (11), and outer teeth (7) defined by a number of second teeth (12) alternating with respective cavities (13); and in that each of said friction blocks (3) incorporates at least one of said first teeth (10) and at least one of said second teeth (12)wherein said friction blocks (3) are molded onto said endless belt element (2) and each of said friction blocks (3) is formed in one piece completely surrounding said endless belt element (2) and having a central through cavity (21) engaged by said endless belt element (2) and having recesses (22, 23) cooperating with and complementary in shape to the respective said first and said second teeth (10, 12).