Center-Axis Button Unlocking to Reduce Folding Knife Hand-Cut Risk
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Solution Overview
Problem
Current folding knives, such as the pin lock folding knife, pose safety risks during use, particularly when closing, due to potential hand cutting, and lack adequate safety protection.
Innovation Solution
A center axis button combined liner unlocking folding knife device with an axis unlocking mechanism, comprising a button, spring, axis nail, support cylinder, and lock component, allows the folding knife to be unfolded and rotated safely by pressing the button, ensuring it remains hidden when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pin lock mechanism is used to secure the knife blade, then the knife achieves stable locking and unlocking, but the user may cut their hand during the closing process, reducing safety
Solution Approach 1:
The patent extracts the dangerous pin lock mechanism from the knife design and replaces it with a button-controlled locking system. The button mechanism allows the user to safely engage and disengage the locking action without exposed pins that could cut the hand, thereby eliminating the harmful factor while maintaining reliable locking functionality.
Solution Approach 2:
The button serves as an intermediary element between the user's finger and the locking mechanism. Instead of directly manipulating exposed pins, the user presses the button which internally actuates the locking and unlocking actions through a safer, enclosed mechanism, preventing direct contact with sharp components.
2Reliability
If traditional frame lock or liner lock mechanisms are used, then the knife structure is simple and reliable, but the operation is not as convenient and quick as desired
Solution Approach 1:
The patent introduces a dynamic button-controlled mechanism that allows the knife to transition between locked and unlocked states through a simple pressing motion. This dynamic control system enhances ease of operation by enabling quick engagement and disengagement of the locking mechanism, while the underlying structural reliability is maintained through the robust button and spring assembly.
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
The device enhances user safety by preventing hand cuts and provides convenient, quick operation through the pressing mechanism, offering higher protection and ease of use compared to traditional frame and liner lock folding knives.
Implementation Method 1
the top end of the spring is pressed against the lower surface of the button, and the bottom end of the spring is sleeved and fixed to the top side wall of the support cylinder
Data Source
AI summary
The invention provides a center axis button combined liner unlocking folding knife device, comprising a frame lock component or liner lock component, which is provided with first knife handle and second knife handle; knife hiding space is formed between first knife handle and second knife handle, first through hole is formed in front end of first knife handle, and second through hole is formed in front end of second knife handle; a folding knife; it also comprises an axis unlocking mechanism, and folding knife is rotatably arranged between first through hole and second through hole via axis unlocking mechanism; when axis unlocking mechanism is pressed, folding knife is unfolded to be in a straight state in a rotating way along circumferential direction after being separated from knife hiding space; conversely, when axis unlocking mechanism is loosened, folding knife can be rotated into knife hiding space along circumferential direction.