UNDULATING BODY AND ASSEMBLING METHOD OF WORK MACHINE WITH UNDULATING BODY

PROBLEM TO BE SOLVED: To provide an undulating body which allows the assembling work while easily joining multiple constituting members each other and an assembling method of a work machine with the undulating body.SOLUTION: A lattice mast comprises a lower mast 17A and an intermediate mast 17B. The lower mast 17A includes a first connection part 17A1, and the intermediate mast 17B includes a second connection part 17B1 and a first guide mechanism 73. The first guide mechanism 73 has a guide surface 73A and a guide surface 73C. A first outer peripheral surface 61A of the first connection part 17A1 moves along the guide surface 73A after abutting on the guide surface 73A, then the first outer peripheral surface 61A abuts on the guide surface 73C, and a first hole 62 coincides with a second hole 72. The first connection part 17A1 and the second connection part 17B1 are connected by inserting a connecting pin into the first hole 62 and the second hole 72.SELECTED DRAWING: Figure 8 【課題】複数の構成部材同士を容易に連結しながら組み立て作業を行うことが可能な起伏体および当該起伏体を備えた作業機械の組立方法を提供する。【解決手段】ラチスマストは、下部マスト１７Ａと中間マスト１７Ｂとを備える。下部マスト１７Ａは第１連結部１７Ａ１を備え、中間マスト１７Ｂは第２連結部１７Ｂ１と第１ガイド機構７３とを備える。第１ガイド機構７３は、ガイド面７３Ａと、ガイド面７３Ｃと、を備える。第１連結部１７Ａ１の第１外周面６１Ａがガイド面７３Ａに当接した後、ガイド面７３Ａに沿って移動されると、第１外周面６１Ａがガイド面７３Ｃに当接し、第１孔部６２と第２孔部７２とが合致する。第１孔部６２および第２孔部７２に連結ピンが挿入され、第１連結部１７Ａ１と第２連結部１７Ｂ１とが連結される。【選択図】図８