To provide a frame connection structure that can appropriately connect a support frame to a reinforcement plate and that is superior in durability.SOLUTION: Each of a pair of right and left support frames 26 extending in a longitudinal direction of a vehicle body is configured by a square cylinder member and is provided with: a front portion 26A extending in the longitudinal direction; an intermediate inclined portion 26B extending in an inclined manner so as to be located more inside of a machine body as it goes more rearward; and a rear portion 26C extending in the longitudinal direction. A support bracket 28 for supporting a suspension mechanism 7 is attached to the vicinity of a bent portion. A reinforcement plate 34 is connected while covering a lower side of the support bracket 28 and a lower side of an area including the bent portion. The reinforcement plate 34 includes an insertion hole 36 wider than a lateral width of the support frame 26 and formed at a location corresponding to the bent portion. In addition, the reinforcement plate 34 has a portion 34a extending toward the intermediate inclined portion 26B of the support frame 26, and the portion 34a is formed in a tapered shape.SELECTED DRAWING: Figure 4
【課題】支持フレームと補強板との連結を良好に行えるとともに、耐久性に優れたフレーム連結構造を採用することが望まれていた。【解決手段】車体前後方向に延びる左右一対の支持フレーム26が、夫々、角筒材にて構成され、且つ、前後方向に延びる前側部分26Aと、後側に向かうほど機体内側に位置するように傾斜する状態で延びる中間傾斜部分26Bと、前後方向に延びる後側部分26Cとを備え、折れ曲がり箇所の近傍に、サスペンション機構7を支持する支持ブラケット28が取り付けられ、支持ブラケット28の下面側及び折れ曲がり箇所を含む領域の下面側を覆う状態で、補強板34が連結され、補強板34は、折れ曲がり箇所に対応する位置に支持フレーム26の横幅よりも幅広の挿通孔36が形成され、且つ、支持フレーム26における中間傾斜部分26B側に向けて延びる箇所34aが先細状に形成されている。【選択図】図4
WORKING VEHICLE
作業車
2018-12-27
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |