Razor Head Support Device Form-Fit Connection
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Solution Overview
Problem
Existing replaceable head razors have complex activation mechanisms that lead to inefficiencies and increased costs due to frequent handle replacements, as the structural complexity often results in malfunctions.
Innovation Solution
A device featuring a case element with form-fit surfaces and attachment members that engage with the handle's coupling end, eliminating the need for a complicated mechanism by providing a stable, easy-to-assemble form-fit connection, allowing the head to be securely fastened without requiring intricate mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex activation mechanism is used to connect and release the head to the handle, then the connection can be activated and released, but the mechanism malfunctions frequently and requires frequent handle replacement
Solution Approach 1:
The patent removes the complex activation mechanism from the handle and relocates it to the detachable head. This extraction of the mechanism from the permanent handle to the disposable head simplifies the handle structure and eliminates the source of malfunctions while maintaining the connection functionality
Solution Approach 2:
By placing the activation mechanism in the detachable head rather than the handle, the patent allows the mechanism to be replaced cheaply and frequently along with the head, rather than requiring expensive and infrequent handle replacement. This applies the disposable principle to the component containing the mechanism
2Ease of operation
If a complex activation mechanism is integrated into the handle, then the head connection can be activated and released, but the production and user costs increase excessively
Solution Approach 1:
The activation mechanism is extracted from the handle and placed in the detachable head, allowing the handle to be manufactured simply and inexpensively while the mechanism is produced as part of the disposable head assembly
Solution Approach 2:
The razor system is segmented into a permanent handle and a detachable head, with the activation mechanism assigned to the head portion. This segmentation allows each component to be optimized independently for manufacturing efficiency
3Device complexity
If a form-fit connection is used between the case element and coupling end, then the connection process is simplified and malfunctions are reduced, but the connection stability must be maintained
Solution Approach 1:
The patent replaces complex mechanical activation mechanisms with a form-fit connection system that relies on geometric compatibility between the case element and coupling end. This substitution of mechanical complexity with geometric simplicity achieves both ease of connection and reliability
Data Source
Figure 1a~1c
Figure 2a~2d
Figure 3
AI summary
Device for supporting heads of a razor (1) intended to be mounted on the handle (11) of replaceable head razors, which replaceable head razors comprise a handle (11), which handle (11) has a coupling end (13) for removably coupling a head (12). The supporting device is composed of a case element (2) removably engageable with said coupling end (13), said case element (2) having surfaces contacting, at least partially, the surface of said coupling end (13), generating a form-fit connection. The case element (2) has attachment members for the engagement into corresponding attachment seats provided on said head (12). The present invention further relates to a head for razors and to a razor.