| 摘要 |
A lifting apparatus (20) uses an inverted U-shaped boom (30) which is pivotally mounted (40) to an assembled frame. The frame is secured through a truck bed (24) to the truck frame (130) and lateral bed supports (136). A pair of hydraulic cylinders (80) actuates the boom (130) pivotally above the frame to move the boom (130) and an associated winch (50) between a rest position and an operative position. Frame elements define a series of protective enclosures (115) to protect the hydraulic and electrical components of the lifting apparatus. The frame elements further distribute loads carried by the boom to the truck frame and chassis, increasing the amount of weight the lift apparatus may safely lift and transport. |
