Segmented Roller Tool for Vertical Membrane Sealing
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Solution Overview
Problem
Existing tools are inefficient in applying fluid impermeable membranes to vertical surfaces, such as building roofs and foundations, due to the difficulty in applying the required force and leverage to seal seams effectively, especially around protrusions and joints.
Innovation Solution
A roller tool with a plurality of identically shaped rollers supported by an axle and a pole handle, designed to apply and secure fluid impermeable membranes to vertical surfaces, featuring a polymer outer layer for heat resistance and pressure durability, with a hub and bearing system for rotation and a sleeve spacer to maintain a gap between rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hand-held roller is used to apply membrane to vertical surfaces, then the installer can manually control the sealing process, but the required force and leverage cannot be effectively applied to seal vertical seams
Solution Approach 1:
The roller is divided into multiple independently rotating segments arranged end-to-end along the axle. Each segment can rotate independently to conform to the vertical surface and maintain continuous contact with the membrane, allowing the entire assembly to apply distributed force effectively across the seam while remaining maneuverable for manual operation
Solution Approach 2:
The roller segments are arranged in a linear array along an axle perpendicular to the direction of rolling. This dimensional arrangement allows the roller to maintain contact with the vertical surface through the length of the membrane seam, distributing the sealing force across multiple points simultaneously and providing mechanical leverage that a single hand-held roller cannot achieve
2Productivity
If a power propelled roller mechanism is used for long flat horizontal seams, then efficient sealing can be achieved, but the mechanism cannot function effectively along vertical seams
Solution Approach 1:
The roller segments are designed to rotate independently on the axle, allowing the assembly to dynamically adapt to the vertical surface geometry. The segments can pivot and adjust their orientation to maintain contact with the membrane as the roller moves along the vertical seam, providing the versatility needed for vertical surfaces while maintaining sealing efficiency
Solution Approach 2:
The multi-segment roller design creates a universal tool that can effectively seal both horizontal and vertical seams. The segmented construction allows the same roller mechanism to adapt to different surface orientations and geometries, making it a versatile solution that replaces the need for different specialized tools for horizontal versus vertical applications
3Reliability
If the membrane extends upwardly from the roof to cover a large vertical wall area, then water impermeability is improved, but the application process becomes more difficult due to the large surface area
Solution Approach 1:
The membrane application process is facilitated by the segmented roller that can cover large vertical areas through the coordinated rotation of multiple segments. Each segment independently contacts the membrane, allowing the operator to efficiently apply and seal membrane over extensive vertical wall surfaces without excessive difficulty
Solution Approach 2:
The multi-segment roller acts as an intermediary tool between the operator and the large vertical surface. It distributes the application force and sealing pressure across multiple contact points, making it easier to manage and control the membrane application process over large areas compared to using a single-point application method
Data Source
AI summary
A hand tool has a plurality of similarly or identically shaped rollers aligned end-to-end along an axle such that the outer surface of each respective roller moves about an axis define by the axle. The hand tool may be a roofing roller tool that enables an impermeable vapor membrane or sheet to be applied to a vertical wall extending upwardly from an outer perimeter of a roof. The tool may be manipulated by an elongated pole handle coupled to a roller head or roller head frame.