| 摘要 |
PURPOSE:To provide a low-costed and lightweight captioned device with reduced noise by forming a metal spherical body fixed with pressure to a flexible metal wire at a prescribed pitch to provide wear resistance and a cushioning property. CONSTITUTION:An endless, flexible metal wire 1 is formed by a wire rope, etc., and a light-alloy spherical body 2 formed into a straw-rice-bag-shape is fixed with pressure to said flexible metal wire 1 at a prescribed pitch P. The metal spherical bodies 2 are respectively coated with polyurethane resin 3 or rubber with wear resistance and a cushioning property. |
