Removable Scaffold Bracket for Single-User Wall Removal
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Solution Overview
Problem
Existing scaffold systems require two users, one inside and one outside the building, to remove and install scaffolding, making the process cumbersome and potentially unsafe.
Innovation Solution
A modified attaching bracket system with a spanner bracket allows for the attachment and removal of scaffolding from either side of the wall, using a rope or cable to facilitate single-user operation and includes a spanner bracket for cement block or pour-in-place concrete walls, enabling easier installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional T-shaped attaching bracket with extension arm is used, then the scaffold can be securely attached to the wall, but removal requires two users (one inside and one outside the building)
Solution Approach 1:
The attaching bracket is divided into separate components: a nail plate that remains fixed in the wall and a removable extension arm that can be detached and pulled through the wall aperture by a single user. This segmentation allows the scaffold support structure to be securely attached during use but easily removed by one person without requiring coordination between interior and exterior users.
Solution Approach 2:
The extension arm is designed to extend through the wall aperture from the interior side, creating a new operational dimension. The arm protrudes through the wall on the interior side, allowing a single user to access and manipulate the removal mechanism from inside the building without needing someone outside to assist with the extension arm manipulation.
2Strength
If the extension arm is welded to the nail plate forming a T-shaped bracket, then structural strength is maintained, but the scaffold cannot be easily removed from a single location
Solution Approach 1:
The welded T-shaped bracket is separated into two distinct components: the nail plate that provides structural strength and remains permanently attached to the wall, and the extension arm that provides the mechanical interface for scaffold attachment and removal. This segmentation maintains the strength benefits of the welded design during installation while enabling easy single-user removal.
Solution Approach 2:
The extension arm transitions from a fixed welded position to a movable, removable component. During installation, the arm is positioned and secured; during removal, the arm can be detached from the scaffold and pulled through the wall aperture, transforming the static bracket system into a dynamic one that adapts to different operational phases.
3Adaptability or versatility
If the attaching bracket is designed for wood stud walls, then it works well for framed construction, but it cannot be used with cement blocks or pour-in-place concrete walls
Solution Approach 1:
The nail plate is designed with multiple aperture configurations that can accommodate different wall types: standard apertures for wood stud walls with nails, and alternative aperture patterns for cement blocks or concrete walls that allow for different fastening methods. This universal design enables the same basic bracket structure to serve multiple wall construction types without requiring completely different designs.
Solution Approach 2:
The nail plate features locally optimized aperture configurations tailored to specific wall types. Certain areas of the nail plate have apertures positioned and sized for wood stud penetration, while other configurations accommodate cement block holes or concrete anchor placements. This local quality optimization allows the single nail plate design to effectively interface with diverse wall materials through location-specific aperture patterns.
Data Source
AI summary
An improvement to U.S. Pat. No. 6,003,630 comprising a method and device whereby the extension arm portion is removably attached and to the nail plate portion while attached to the exterior scaffolding portion, thus permitting a single user to take down the scaffolding easily and safely on their own without assistance. Additionally, the scaffold can now be safely lowered to the ground entirely from the building interior via a support line attached to the extension arm while it is attached to the exterior scaffolding. This improvement makes the 630 patent more efficient and much safer to use. Additionally, a spanner bracket for use with cement block or pour in place concrete walls is disclosed herein enabling a non ground-based scaffolding system in use with the 630 patent for such walls types, also permitting single user set up and removal of the scaffolding.