Knife Apparatus with Modular Blade and Rotating Lock Mechanism
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Solution Overview
Problem
Existing knives lack a simple and efficient mechanism for detachable and replaceable blades, leading to difficulties in blade maintenance and replacement without wasting handle components.
Innovation Solution
A utilitarian knife design featuring a lock column and rotating block mechanism on the right handle and a card slot and groove on the left handle, allowing for easy disassembly and assembly, enabling the replacement of blades without affecting the left or right handle portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the blade is made detachable and replaceable, then the ease of repair and maintenance is improved, but the device complexity increases due to the need for locking mechanisms and multiple components
Solution Approach 1:
The knife is divided into distinct modular components: a handle assembly (with left and right handle portions) and a detachable blade portion. The blade portion can be separated from the handle assembly through a simplified locking mechanism, allowing independent replacement of the blade without affecting the handle components. This segmentation enables easy blade replacement while maintaining handle integrity.
Solution Approach 2:
The blade portion is extracted as a separate replaceable component from the traditional integrated knife structure. The locking mechanism allows the blade to be easily removed and replaced, converting the blade from a permanent part to an interchangeable component that can be taken out and replaced independently.
2Loss of time
If traditional fixed blade design is used, then the device complexity is reduced, but the loss of time for blade maintenance and replacement increases
Solution Approach 1:
The locking mechanism is pre-configured with alignment features (such as aligned openings and engagement structures) that allow the blade portion to be quickly attached or detached without requiring complex alignment procedures. This preliminary design of the connection interface enables rapid blade replacement, significantly reducing maintenance time.
3Adaptability or versatility
If the blade is permanently fixed to the handle, then the reliability of the connection is improved, but the adaptability for different blade types decreases
Solution Approach 1:
The handle assembly is designed with a universal locking mechanism that can accommodate different types of blade portions. The standardized connection interface (with aligned openings and engagement structures) allows various blade types to be attached to the same handle assembly, providing multi-functionality and adaptability while maintaining a reliable connection through the consistent locking mechanism.
Data Source
AI summary
An apparatus including left and right handle portions; a first blade portion; a first device; and a fastener. The fastener may be configured to connect in a first state, first ends of the left handle portion, the right handle portion, and the first blade portion to each other, with the first blade portion sandwiched between the left and right handle portions. The first device may be configured to connect second ends of the left and right handle portions and an intermediate part of the first blade portion. In at least one embodiment, in the first state the left and right handle portions, and the first blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left and right handle portions, and the first blade portion.