| 摘要 |
PURPOSE: A frame reinforcing structure receives a load in an optimal state and prevents the concentration of impact force on a connecting portion of side frames. CONSTITUTION: The horizontal reinforcing member(20) is fixedly arranged on a lower horizontal bar(6) of an outer frame(2). The vertical reinforcing members(22,24) have a lower end vertically mounted on the upper surface of the horizontal reinforcing member(20) and an upper surface fixed on an upper horizontal bar(4) of the outer frame(2). The front side diagonal reinforcing members(26,28) have lower ends jointed to the lower horizontal bar(6) and upper ends jointed to a left and a right side frames(12,14) of a coach. The rear side diagonal reinforcing members(30,32) have lower ends jointed on the upper surface of the horizontal reinforcing member(20) and upper ends jointed to the lower end surfaces of the side frames(12,14).
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