| 摘要 |
PROBLEM TO BE SOLVED: To provide such a frame structure for a truck cabin with excellent stability in collision and excellent rigidity of whole frames as being capable of improving the setting ability of forming materials, when welded, without using node members, preventing the deformation of both forming materials due to thermal effect in welding and achiving a lighter weight and lower manufacturing cost. SOLUTION: A frame structure 1 consists of a front frame 10, side frames 20, a floor frame 30, a rear frame 40 and a ceiling frame 50. The front fram 10 has the first front cross member 11, the first front joint member 12, the second front cross member 13 in front of the first front cross member 11, the third front cross member 14 arranged in parallel to the second front cross member, brackets 15 to connect the first front cross member 11 to the second front cross member 13 and the second front joint member 16 to join the second front cross member 13 to the third front cross member 14. |
