Mobile Shield Design for Debris Chip Deflection in Tile Removal
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Solution Overview
Problem
During tile removal, smaller debris chips pose a risk of injury and damage as they fly off and embed into surfaces or objects, and workers must awkwardly cover the chipping hammer blade with their hands to block them, leading to potential back problems and reduced effectiveness over time.
Innovation Solution
A mobile arm with a shield and clasp system that provides multiple degrees of freedom to cover the chipping hammer blade, deflecting debris chips back down with a hollow interior shield, allowing for mobility without hindering the worker's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If workers cover the chipping hammer blade with their hands to block flying debris chips, then debris protection is improved, but worker health and operational comfort deteriorate due to awkward posture and long-term back problems
Solution Approach 1:
A shield acts as an intermediary barrier between the chipping hammer blade and the worker, blocking flying debris chips without requiring direct hand placement near the blade. The shield is positioned to intercept debris chips while allowing the worker to maintain a safe, comfortable distance from the hazard zone.
Solution Approach 2:
The shield is divided into multiple segments or panels that can independently move to follow the blade's motion. This segmentation allows each panel to respond to debris generation zones separately, providing comprehensive protection while maintaining flexibility in worker positioning and reducing the need for awkward postures.
2Object-affected harmful factors
If workers continuously maintain hand coverage over the chipping hammer blade, then debris protection is improved, but productivity deteriorates due to worker fatigue and reduced consistency
Solution Approach 1:
The shield system is designed to automatically follow the motion of the chipping hammer blade through mechanical linkages or spring-loaded mechanisms. This self-adjusting capability eliminates the need for continuous manual repositioning by the worker, maintaining consistent protection throughout the entire operating cycle without requiring sustained awkward postures that lead to fatigue.
Solution Approach 2:
The shield transitions from a static barrier to a dynamic system that moves in synchronization with the blade's reciprocating motion. This dynamic adaptation ensures the shield remains positioned optimally to block debris chips at all times during operation, providing consistent protection regardless of blade position or speed variations.
3Object-affected harmful factors
If a fixed shield is used to block debris chips, then debris protection is improved, but device complexity and adaptability worsen due to limited mobility and inability to adjust to different operating positions
Solution Approach 1:
The shield incorporates movable joints, hinges, or telescopic mechanisms that allow it to extend, retract, and reposition according to the worker's operating position and the blade's motion envelope. This dynamic structure maintains effective debris blocking while adapting to various operational scenarios and worker comfort requirements.
Solution Approach 2:
The shield system is designed with multiple degrees of freedom and adjustable positioning capabilities that enable it to function effectively in various operating configurations. The same shield structure can accommodate different blade sizes, chipping hammer models, and worker positions, providing universal protection without requiring multiple specialized shields.
Data Source
AI summary
Methods and devices relating to loose debris chip shielding for dust free tile removal and ordinary tile removal projects. During the tile removal process, a chipping hammer powers a chipping hammer blade that breaks up tiles into pieces. The larger, heavier pieces are simply pushed away, but smaller debris chips break off with enough force to send them flying up in the air and in different directions landing in undesirable locations. The methods and devices herein protect equipment, environments, and individuals from damage caused by loose debris chips during tile removal. A shield with several degrees of freedom moves freely in response to chipping hammer vibrations and blocks loose flying debris chips, deflecting them toward the ground.