| 主权项 |
1. A boom apparatus, comprising
a clevis pin unit, at least one flexible line, and a boom, the at least one flexible line extending longitudinally of the boom, the boom comprising
a first boom side wall,a second boom side wall spaced apart from the first boom side wall laterally of the boom,a top wall,a bottom wall spaced apart from the top wall, the top wall and the bottom wall interconnecting the first boom side wall and the second boom side wall, the first boom side wall, the second boom side wall, the top wall, and the bottom wall cooperating to define a periphery of a box structure of the boom, the first boom side wall and the second boom side wall extending longitudinally of the boom beyond the box structure to provide respectively a first wall extension and a second wall extension, anda monolithic nose body positioned at a nose of the boom and the boom apparatus, the nose body attached to and sandwiched between the first and second wall extensions and attached to the top and bottom walls so as to close an end portion of the box structure, the nose body and the first and second wall extensions receiving therein the clevis pin unit such that the nose body, the first and second wall extensions, and the clevis pin unit are included in a clevis of the boom apparatus for suspension of a work tool therefrom, the nose body comprising a passageway through which the at least one flexible line is routed. |
