| 摘要 |
PURPOSE: An opening type loop system is provided to control the opening or blocking of a cover layer on a section through a simple structure in which a rotary shaft rotates due to the driving power of a driving unit. CONSTITUTION: An opening type loop system (100) comprises a loop body (110), a cover layer (140), and a tensile force supply unit (150). The loop body includes a plurality of sections (111), and a rotary shaft rotated by a driving unit (120) is mounted on one side of the loop body. The cover layer is wound in the rotary shaft and selectively covers the section according to the rotation of the rotary shaft. The tensile force supply unit is included in the section in order to face the rotary shaft and pulls the cover layer to an opposite direction of the rotary shaft. |
