| 摘要 |
<p>PURPOSE:To reduce the weight of a moving frame and prevent shortening of the life of a moving cable by providing a pulley over which the moving cable is laid and which gives tensile force to the moving cable, and rollers connected to a chain moving in accordance with lifting and lowering of a cage to support looseness of the moving cable. CONSTITUTION:Tensile force of a moving cable 11 is given by a pulley 8 over which the moving cable 11 is laid, and rollers 9 are connected to a chain 20 moving in accordance with lifting and lowering of a cage 2 to support looseness of the moving cable 11. When the cage 2 begins to lift by driving a winding machine 5, the chain 20 moves through a chain 19 and chain sprocket wheels 15 - 18, the moving cable 11 is lifted in accordance with the movement of the cage 2, independently of the movement of the chain 20, and even when the cage 2 is positioned at the uppermost floor, the moving cable 11 is held by the rollers 9. When the cage 2 begins to lower, the moving cable 11 moves downward by the dead weight of the pulley 8, the rollers 9 move on the heels of the pulley 8 by the movement of the chain 20, and the moving cable 11 is held by the rollers 9.</p> |
