PROBLEM TO BE SOLVED: To easily change a shape of a mud guard cover not only changing from a shape with a prescribed part into a shape without the prescribed part, but also changing from a shape without the prescribed part into a shape with the prescribed part, while reducing the manufacturing cost.SOLUTION: A working device is connected to a rear part of a traveling vehicle body, and provided with a mud guard cover 50 for receiving mud that wheels of the traveling vehicle body splash toward the working machine. The mud guard cover 50 includes a main cover part 51 that retains a basic shape, and an auxiliary cover part 52 that is deformable. The mud guard cover 50 is configured to change the shape by deformation of the auxiliary cover part 52.COPYRIGHT: (C)2014,JPO&INPIT【課題】製造コストの削減を図りながら、泥除カバーの形状を、所定箇所を備える形状から所定箇所を備えない形状に変更する場合だけでなく、所定箇所を備えない形状から所定箇所を備える形状に変更する場合においても簡単に変更できるようにする。【解決手段】走行車体の後部に作業装置を連結し、走行車体の車輪が作業装置に向けて撥ね上げた泥を受け止める泥除カバー50を備え、泥除カバー50に、基本形状を維持する主カバー部51と、変形可能な補助カバー部52とを備えて、泥除カバー50を、補助カバー部52の変形による形状の変更が可能となるように構成した。【選択図】図9
