| 摘要 |
The lift arm of a skid steer loader according to the present invention has a simple structure. A pair of left and right lift arms each has a first arm portion and a second arm portion. The first arm portion is made as an elongated member from components made from plate metal or the like, and its base end is rotatably fitted to a support portion which projects upwards at a rear portion of the main body of the loader. In this second arm portion, a connection portion, an attachment fitting portion, a horizontal load bearing portion, and an actuator fitting portion and so on are integrally formed as one member from cast metal. Furthermore, a hollow portion is formed in the interior of this second arm portion, extending from an approximately intermediate portion thereof to its base end.
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