| 摘要 |
PROBLEM TO BE SOLVED: To provide net bodies or sheet bodies for ball-protection etc in which the net bodies can be smoothly lifted and moved, and to provide a lifting and moving method of the net bodies or sheet bodies for ball-protection etc.SOLUTION: Net bodies or sheet bodies for ball-protection etc are constituted of: nets or sheets suspended with tension in an up-and-down direction of a space part; and a driving rope bridged in parallel to a suspension-tension direction of the nets or the sheets and driven by a winch, or a plurality of ring bodies mounted in a linear shape along the up-and-down direction of the nets or sheets. The plurality of ring bodies are movably inserted to a plurality of connecting ropes connected between right and left both ends of the nets or sheets, respectively, and mounted movably by a desired amount in the right and left direction centering around positions corresponding to the driving rope or guiding rope. |
