| 摘要 |
<p>A cable is prevented from being damaged by rubbing against a helicopter. A protection frame (2) is installed on the side face of the fuselage below a winch (11) equipped to a helicopter (10). A supporting groove (213) long in the horizontal direction and having a circular cross-section is formed in the protective frame (2), a cylindrical sliding body (3) is fitted rotatably in the supporting groove (213), a part of the circumferential surface of the sliding body (3) thus fitted is exposed from the opening of the supporting groove (213), and a cable (12) hanging down from the winch (11) is brought into contact with the exposed portion. The sliding body (3) is divided into two or more, and the cylindrical divided sliding bodies (30) are arranged continuously. The divided sliding body (30) has concave and convex tapered shapes (31, 32), respectively, at the opposite ends and adjoining sliding bodies (30) are arranged while fitting the concave and convex tapers (31, 32) at the ends.</p> |
