| 摘要 |
<p>PURPOSE: A cabin structure of a working vehicle is provided to increase the rigidity by relieving load and reducing the weight and the sectional area, and to cut down manufacturing cost by simplifying manufacturing process. CONSTITUTION: A cab frame of a work vehicle is formed by using side members(2,3) with the modified sectional structure and high workability to increase functionality as well as sectional strength for rational reinforcement. The side pipe member is composed of one flat face at least at a side face thereof, and a guide rail(10) and a pipe member(14) are attached to the flat face. The side member has the sectional shape that provides functionality. The pipe member of the main framework constitutes a front supporting column(2a,3a), a ceiling longitudinal part(2b,3b) and a rear supporting column(2c,3c) which are integrally formed by bending. The guide rail and the pipe member for a window are welded into the flat face of the pipe member in the specified region and integrally formed.</p> |
