| 摘要 |
PURPOSE: A lower structure for a driver seat of heavy equipment is provided to simplify maintenance work, to protect a driver safety when heavy equipment is overturned, to reduce the cost by shortening a manufacturing process and to heighten the competitiveness of products. CONSTITUTION: The lower structure for a driver seat of heavy equipment comprises the steps of fastening a lever(50) on the upper side of a main frame(10) by a bolt(60), placing a cabin plate(20), a floor plate(30) and a gusset plate(70) which supports a main post(40) on the upper side of the lever(50) in order, then fastening with the lever(50) by a bolt(80) and a nut(90).
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