Razor Cartridge Coupling Structure for Secure Pivoted Attachment
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Solution Overview
Problem
Existing razor assemblies face issues with improper coupling of the razor handle and cartridge, difficulty in recognizing the coupling direction, and detachment under external forces or impacts.
Innovation Solution
A razor assembly design featuring a razor handle with a pivotable coupling mechanism, including a first and second arm that detachably couple with a razor cartridge, and a handle head that supports the cartridge, with guide posts and inclined surfaces to ensure accurate alignment and maintain the coupling even under external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coupling portion is exposed to the outside for easy coupling and detachment, then the ease of operation is improved, but the reliability deteriorates due to exposure to external impact
Solution Approach 1:
The coupling portion is nested within the handle head structure, specifically formed as an integrated part of the handle head body. This nesting protects the coupling portion from external impact while maintaining its functionality for coupling and detachment operations through the exposed interface
2Ease of operation
If the coupling mechanism is simplified for easy detachment, then the ease of operation is improved, but the strength deteriorates under excessive external force
Solution Approach 1:
The coupling mechanism employs movable arms that can dynamically transition between coupled and detached states. The arms are designed to be movable relative to the handle head, allowing easy detachment through user action while maintaining strong coupling during normal use. The dynamic nature allows the structure to adapt between these two functional states
3Manufacturing precision
If the guide posts are positioned to ensure accurate alignment, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The guide posts are merged with the connector structure, forming an integrated assembly. The guide posts are positioned on the connector and work in conjunction with the arms and handle head to provide alignment guidance. This merging reduces the number of separate components while maintaining the alignment function
Data Source
AI summary
A razor assembly includes a razor cartridge, which is provided with a connector, and a razor handle, which detachably couples to the connector to rotatably support the razor cartridge. The razor handle may include a first arm and a second arm, which are spaced apart in the longitudinal direction, move away from each other to couple to the connector, and move towards each other to detach from the connector. The razor handle may also include a handle head, which accommodates at least parts of the first and second arms. The razor cartridge may include a pair of guide posts including inner support surfaces formed so as to face the outer sides of the handle head in the state in which the razor cartridge and the razor handle are coupled to each other.