Spool Holder for Vertical Wall Webbing Installation
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Solution Overview
Problem
Existing systems fail to provide a safe and efficient method for installing rolled sheet materials, such as waterproofing webbing, on vertical or near-vertical surfaces, as they are heavy and difficult to handle, leading to sagging and wrinkles, and pose safety risks due to the need for workers to navigate further up the wall during installation.
Innovation Solution
A system comprising a spool holder with a vertical circular shaft and mounting hardware attached to construction equipment, allowing for precise control of the roll's height and unwinding, along with a spool director for directing the material around corners, enables easier and safer deployment of rolled materials on vertical surfaces by using a scissor lift for controlled movement and unwinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rolled sheet materials are installed manually on vertical surfaces, then workers can install the material, but the heavy weight and vertical position make handling difficult and dangerous
Solution Approach 1:
A spool holder device is introduced as an intermediary mechanism between the rolled material and the workers. The spool holder mounts to construction equipment (such as scissor lifts) and provides a controlled unwinding mechanism that directs the material to the installation point, eliminating the need for workers to manually handle heavy rolls at heights.
Solution Approach 2:
The system enables the rolled material to be installed through its own weight and the mechanical unwinding action of the spool holder. As the construction equipment moves along the wall, the spool holder automatically unwinds the material without requiring workers to manually unroll or position each section.
2Manufacturing precision
If rolled materials are kept level during unrolling, then proper overlap is maintained, but sagging and wrinkles occur on vertical surfaces
Solution Approach 1:
The spool holder is designed with a vertical shaft that allows the rolled material to unwind in a controlled vertical motion rather than horizontal unrolling. This dynamic unwinding mechanism maintains the material in a vertical plane, preventing sagging while ensuring proper overlap through the controlled descent of the material from the spool.
3Productivity
If workers move further up the wall during installation, then more wall surface can be covered, but the process becomes more difficult and dangerous
Solution Approach 1:
The system combines the spool holder mounting mechanism with construction equipment (such as scissor lifts) that already has the capability to move vertically along the wall. This merging allows the material installation process to utilize the existing vertical movement capability of the construction equipment, eliminating the need for separate manual positioning operations.
4Productivity
If heavy rolls of sheet material are handled manually, then installation can proceed, but the weight makes the process difficult and time-consuming
Solution Approach 1:
The spool holder acts as a mechanical intermediary that takes the heavy rolled material and provides a controlled unwinding mechanism. The vertical shaft and base plate configuration allows the material to be fed from the roll without requiring workers to manually lift or position heavy sections, significantly improving installation efficiency.
Data Source
AI summary
A system and method of installation for installing a rolled sheet material on a vertical or near-vertical surface are described. Specifically the system and method of installation are useful in the construction industry where heavy rolls of sheet materials must be precisely installed on walls and other vertical surfaces that can be several stories high. The system includes a rolled material spool holder with mounting hardware to allow mounting of the spool holder to a piece of construction equipment along with a spool director, which is also mounted to the piece of movable construction equipment, such as a scissor lift. The method of installation involves positioning the scissor lift along the wall in the desired start location and the desired starting height. The operator affixes the start of the roll to the wall and then drives the scissor lift along the wall, which causes the roll to unwind due to the movement of the scissor lift, while an additional worker affixes the roll to the wall at the desired intervals.