Razor Handle Rotating Trigger Prevents Accidental Release
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Solution Overview
Problem
Existing razors with exchangeable blade cartridges risk inadvertent release of the cartridge due to the proximity of the release trigger to the front end of the handle, leading to accidental triggering during use.
Innovation Solution
A rotatable release trigger positioned at the rear of the razor handle, which converts rotational motion into longitudinal motion via a cam mechanism or magnetic mechanism, allowing for controlled release of the exchangeable blade cartridge, reducing the risk of accidental operation and incorporating a snap-fit connection for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release trigger is located near the front end of the razor handle, then the release mechanism can be easily accessed, but the risk of inadvertent release increases
Solution Approach 1:
The release trigger is repositioned from the front end to the rear end of the handle along the longitudinal axis, utilizing the longitudinal dimension to separate the trigger from the connector. This spatial reconfiguration maintains operational accessibility while eliminating the risk of inadvertent release during shaving operations.
Solution Approach 2:
The handle is divided into distinct functional zones: the front end houses the connector for the blade cartridge, while the rear end houses the release trigger. This segmentation separates the attachment function from the release function, preventing accidental activation while maintaining ease of use.
2Reliability
If the release trigger is positioned away from the connector, then inadvertent operation is prevented, but the overall length of the handle increases
Solution Approach 1:
The rear end of the handle serves dual purposes: it provides the release trigger functionality and simultaneously acts as the structural termination of the handle. This multi-functionality allows the trigger to be positioned at the rear without requiring additional length beyond the handle's existing structure.
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 solution prevents accidental release of the razor blade cartridge, ensuring safer and more convenient operation by separating the release trigger from the connector, facilitating easy and reliable blade replacement without compromising the grip during shaving.
Implementation Method 1
The razor handle may further comprise a cam mechanism for converting a rotation of the release trigger about the longitudinal axis, relative to the connector, into a motion along the longitudinal axis to actuate the release mechanism
Implementation Method 2
The razor handle may further comprise a spring-loaded pusher for urging a pivotable head of the exchangeable razor blade cartridge in one pivoting direction
Implementation Method 3
The razor handle may be simply and reliably connected to the exchangeable razor blade cartridge by a snap-fit connection in which a latching surface of the exchangeable blade cartridge engages an opposite surface of the connector to retain the exchangeable razor blade cartridge relative to the connector
Data Source
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AI summary
The present invention concerns a razor handle (2) comprising a connector (11) for connecting an exchangeable razor blade cartridge (3) to the razor handle (2), comprising a release mechanism for releasing the exchangeable razor blade cartridge (3) from the razor handle (2), a release trigger, rotatable around a longitudinal axis (Y) of the razor handle (2) relative to the connector (11) to actuate the release mechanism. The invention also concerns a razor (1) comprising such a razor handle (1) and the exchangeable razor blade cartridge (3), as well as a method for releasing the exchangeable razor blade cartridge (3) from the razor handle (1).