Roller-Based Part Removal for Faster Protrusion-Groove Disassembly
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Solution Overview
Problem
Disassembly of products assembled via protrusion and groove engagement is time-consuming.
Innovation Solution
A removal device comprising a rotatable first roller supported by a shaft, a base that moves the shaft, and optionally a second roller and connecting plate to apply a pressing force in a direction intersecting the axis, facilitating the detachment of parts from a main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If parts are attached to a main body by engagement between protrusions and grooves, then the assembled product achieves structural integrity, but disassembly becomes time-consuming
Solution Approach 1:
The removal device is segmented into multiple functional components: a base, a shaft supported by the base, and a roller supported by the shaft. This segmentation allows each component to perform its specific function efficiently - the base provides stable support, the shaft enables rotational movement, and the roller applies controlled pressing force, collectively achieving rapid disassembly without compromising the strength of the original engagement structure
Solution Approach 2:
The device incorporates dynamic elements including a rotatable shaft and a roller that can move along the shaft. The roller's ability to rotate and move along the shaft enables it to apply pressing force in a controlled manner while maintaining contact with the protrusion, allowing efficient material removal without damaging the groove structure
2Productivity
If a roller is used to press against parts for removal, then disassembly efficiency improves, but the device complexity increases
Solution Approach 1:
The base, shaft, and roller are merged into a single integrated removal device assembly. The shaft is supported directly by the base, and the roller is supported by the shaft, creating a compact structure where multiple components work together as one unit. This merging reduces the overall device complexity while maintaining high disassembly efficiency
Solution Approach 2:
The device is designed to be self-contained with the roller automatically positioning itself against the protrusion through the shaft's rotational support. The base provides stable support without requiring external adjustment mechanisms, allowing the device to perform removal operations autonomously with minimal complexity
3Speed
If pressing force is applied to remove parts, then removal speed increases, but contact with deformable portions may cause damage
Solution Approach 1:
The roller is designed with specific local properties - it contacts only the protrusion portion of the part while the groove structure remains unaffected. The shaft's rotational support allows the roller to apply pressing force locally to the protrusion, enabling rapid material removal without transmitting harmful forces to deformable portions or the groove structure
Solution Approach 2:
The shaft acts as an intermediary between the base and the roller, providing rotational support that allows controlled application of pressing force. The base serves as an intermediary support structure that stabilizes the shaft and roller assembly, enabling force transmission without direct contact with the part's deformable portions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces the time required to remove parts from a main body by applying a sequential pressing force, while minimizing contact with deformable portions and maintaining part attitude.
Implementation Method 1
a roller (1) that is rotatable about an axis (X1) and that comes into contact with an assembled product (50)
Data Source
AI summary
A removal device includes a first roller that is rotatable about a first axis and that comes into contact with an assembled product, a first shaft that rotatably supports the first roller about the first axis, and a base that moves the first shaft in a direction intersecting the first axis.