Razor Handle Bottom Release Button for Safer Cartridge Ejection
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Solution Overview
Problem
Traditional razor designs with a release button on the top of the handle lead to unintentional pressure application during shaving, finger nail snagging, and difficulty for users with arthritis or weak hands, due to the button's placement and design.
Innovation Solution
A shaving apparatus with a release button positioned on the bottom side of the handle, featuring a button housing, spring mechanism, and ejector system to facilitate easy cartridge removal without accidental ejection, ensuring a smooth top surface for reduced pressure application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release button is placed on the top of the razor handle, then it is easily accessible for users, but it creates unintentional pressure application on the skin during shaving and provides a grip point that can cause added pressure
Solution Approach 1:
The release button is inverted from its traditional top-side placement to the bottom side of the handle. This inversion eliminates the button as a grip point during the shaving stroke, preventing unintentional pressure application on the skin while maintaining ease of operation through intuitive thumb access.
2Ease of operation
If the release button is placed on the top of the razor handle, then it is easily accessible, but long finger nails can get caught on the moveable trigger mechanism causing inadvertent ejection
Solution Approach 1:
By inverting the button placement to the bottom of the handle, the design eliminates the gap between the handle and cartridge that exists in top-mounted designs. This prevents fingernails from snagging on the mechanism, thereby preventing inadvertent cartridge ejection while maintaining reliability.
3Object-affected harmful factors
If the release button is placed on the bottom side of the handle, then it prevents unintentional pressure and finger snagging, but it may be less accessible for some users
Solution Approach 1:
The bottom-mounted button design allows the cartridge replacement mechanism to serve itself by eliminating the need for complex top-mounted trigger mechanisms. The simple push-button design on the bottom provides intuitive operation that is self-explanatory and requires no instructions, making it easily accessible through natural thumb movement.
4Ease of manufacture
If traditional trigger mechanisms are used on top of the handle, then cartridge removal is enabled, but users with arthritis or weak hands have difficulty operating them
Solution Approach 1:
The design changes the operational parameter of the release mechanism from a pulling motion required by traditional triggers to a simple pushing motion. This parameter change reduces the force and dexterity required, making the cartridge removal function accessible to users with arthritis or weak hands while maintaining ease of manufacture.
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 bottom-mounted release button design prevents accidental pressure on the skin, reduces finger snagging, and enhances usability for users with arthritis or weak hands, providing a seamless cartridge ejection process.
Implementation Method 1
spring mechanism
Data Source
AI summary
Described is a shaving apparatus having a razor handle for disposable razor cartridges. The handle has a top side and a bottom side and both a proximal end and a distal end. A cartridge receiver assembly is positioned on the distal end of the handle and is configured to detachably attach with a removable razor cartridge. A release button is positioned on the bottom side of the handle and operably connected with the cartridge receiver assembly such that depression of the release button causes the cartridge receiver assembly to release a removable razor cartridge when attached with the cartridge receiver assembly. Further, the release button has an exterior surface such that the exterior surface of the release button is flush with the bottom side of the handle.