Folding Knife Handle Segmentation for Tool-Free Disassembly
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Solution Overview
Problem
Folding knives with removable blades often require complex mechanisms for disassembly, making it difficult to clean, sharpen, or replace blades quickly and reliably, especially in harsh conditions.
Innovation Solution
A folding knife design featuring a handle with complementary locking elements and an actuation mechanism that allows for tool-free assembly and disassembly, using a switch to move between locked and unlocked configurations, enabling easy separation of handle portions and blade removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a folding knife has a removable blade for cleaning and maintenance, then the blade can be removed for cleaning, sharpening, or replacement, but the disassembly mechanism becomes complex requiring tools and time-consuming operations
Solution Approach 1:
The handle is divided into separate first and second handle portions that can be easily separated from each other, with the blade attached to one portion. This segmentation allows the blade to be removed simply by separating the handle portions, eliminating complex disassembly mechanisms while maintaining ease of blade removal for cleaning and maintenance.
2Ease of operation
If a folding knife uses a simple structure for easy disassembly, then the knife can be quickly taken apart, but the reliability of the connection during use may be compromised
Solution Approach 1:
The connection between handle portions transitions from a static fixed connection to a dynamic controllable connection. The handle portions can be firmly connected during use for reliable operation, and can be easily separated when disassembly is needed. This dynamic capability allows the structure to adapt between requiring high stability during use and requiring easy separation for maintenance.
Data Source
AI summary
A blade assembly for a folding knife includes a blade and a bearing assembly. The blade includes a cutting portion and a tang portion. The tang portion comprises a pivot opening, a first recess, and a second recess. The bearing assembly is coupled to the blade and includes a first bearing member, a second bearing member, and a sleeve. The first bearing member is disposed within the first recess of the tang portion, the second bearing member is disposed within the second recess of the tang portion, and the sleeve extends through the first bearing member, the second bearing member, and the pivot opening of the tang portion.