| 摘要 |
A motorized rack system for loading and unloading long items such as ladders includes a static rack for holding one end of a ladder and a pivoting and extendible rack. The extendible ladder rack assembly includes a base member mounted to the roof of a vehicle, an elongated pivoting member, and a slideable ladder carriage member. The system also includes a mechanism for positioning the pivotable and extendible ladder rack assembly in a first locked down position of the ladder rack, a second tilted position, and a third tilted/extended position for loading and unloading a ladder. A cable is coupled to the one end of the pivoting member and a cable-spooling mechanism pays out and reels in the cable for positioning the motorized ladder rack.
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