초록

A motorized utility extension ladder having a main and upper riser section extendable by a motor. The ladder further comprising a telescopic prop so that the ladder may be free standing, side wing legs for stabilizing the ladder, wheels for transporting the ladder, and a removable shelf.

대표청구항 ▼

A motorized utility ladder comprising a main riser section and an upper riser section, means for raising and lowering the upper section relative to the main section comprising a motor, battery housing with up and down switch, and a sprocket attached to the main section and a strip gear attached to t

A motorized utility ladder comprising a main riser section and an upper riser section, means for raising and lowering the upper section relative to the main section comprising a motor, battery housing with up and down switch, and a sprocket attached to the main section and a strip gear attached to the upper section, said ladder further comprising a telescopic tripod leg having a foot pad, a quick release adjusting pin with a safety chain, a stop collar, the top of the tripod leg having a bracket comprising a sliding collar slidably attached to the tripod leg, connecting rods and collars for attachment to a top rung of the upper section, an adjustable horizontal telescopic arm having a collar at one end attached to the tripod leg, and a bracket with a sliding collar, connecting rods and collars attached to a lower rung of the upper section, a utility shelf pivotally attached to the top of the upper section by quick release pins to enable removal of the shelf from the ladder, a pair of side wing legs hinged to the bottom of the main section, said wing legs comprising a telescopic members forming a bottom telescopic rung for the main section, said ladder having a pair of transport wheels attached to the lower end of the main section by support brackets, a pair of spring assisted pivot locks with spring assisted front clips attached to a lower portion of the upper section for locking the upper and main section at selected extensions.