| 摘要 |
The invention disclosed herein relates to a portable roof scaffold system comprising a combination transport/hook/standoff device, a fixed-direction ladder platform, a fixed-direction roof-ladder standoff, a multi-direction ladder platform, a multi-direction roof-ladder standoff, and one or more ladders. The combined use of these devices create an easily handled, easily set-up, scaffold which is supported above the roof surface, or the skeletal framework of a roof. The ladder platforms may be positioned at a predetermined angle with respect to the ladder to form a level working platform on any roof slope, and may be slid along the ladder to raise or lower the working level on the roof even while remaining parallel to the angles of hips and valleys in the roof frame. Self-locking features of the ladder platforms make them easy and safe to relocate as work progresses.
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