Smart Razor Handle with Usage Tracking Sensor
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Solution Overview
Problem
The useful life of a wet-shave razor cartridge is difficult to determine, leading to poor shave quality and potential discomfort or injury, as users often wait until performance deteriorates before replacing it.
Innovation Solution
A wet-shave razor with integrated sensors and electronics, including a tilt sensor, controller, and indicator (such as LEDs or LCD), which monitor and alert the user to the remaining cartridge life by tracking shaving operations and providing real-time feedback on the handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users wait until shave quality noticeably deteriorates to change cartridges, then they avoid unnecessary replacements, but they experience poor shave quality, discomfort, and possibly injury
Solution Approach 1:
The patent implements a feedback mechanism through usage counters and indicators that provide real-time information about cartridge remaining useful life. The controller monitors shaving operations and provides visual feedback via LEDs or displays, enabling users to proactively replace cartridges before performance deteriorates, thus resolving the contradiction between avoiding unnecessary replacements and maintaining shave quality.
Solution Approach 2:
The system performs preliminary action by tracking and monitoring cartridge usage before the actual performance deterioration occurs. The usage counter and indicator system alerts users in advance of the end of useful life, allowing them to replace cartridges proactively rather than reactively, thereby maintaining consistent shave quality.
2Loss of information
If a tilt sensor and controller are added to track shaving operations, then remaining useful life can be monitored, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it counts shaving operations, manages indicator displays, and potentially tracks usage patterns. By making the controller multi-functional, the patent reduces the need for separate dedicated components for each function, thereby mitigating the increase in device complexity while still providing comprehensive usage information.
Solution Approach 2:
The tilt sensor automatically detects and counts shaving operations without user intervention. The system self-monitors its own usage and provides information about remaining useful life, eliminating the need for manual tracking and reducing the cognitive burden on users while keeping the electronic system relatively simple.
3Ease of operation
If usage tracking electronics are integrated into the handle, then real-time feedback is provided, but manufacturing complexity increases
Solution Approach 1:
The patent segments the electronic components into modular units that can be independently manufactured and then assembled into the handle. The controller, tilt sensor, and indicator elements can be produced separately using standard electronic manufacturing processes, reducing overall manufacturing complexity while still enabling real-time feedback functionality.
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
Enables users to change razor cartridges before experiencing discomfort, eliminates the need to remember replacement timing, and provides individualized usage information based on user habits, ensuring optimal shave quality.
Implementation Method 1
A tilt sensor is provided for continuously monitoring and detecting movement of the wet shave razor and generating signals indicative thereof
Implementation Method 2
the indicator includes one or more light emitting diodes (LED's) at least partially projecting from an outer surface of the handle so that the LED or LED's are visible to a user
Data Source
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AI summary
In a wet-shave razor (20), a handle (22) is provided and has a razor cartridge (24) mounted thereon at an end thereof. The razor cartridge has at least one razor blade positioned therein. A sensor (34) is mounted to the handle for continuously monitoring and detecting movement of the handle and generating signals indicative thereof. A controller (30) is also mounted to the handle and is in communication with the sensor for continuously receiving signals from the sensor. An indicator (26, 48) is mounted to the handle and is in communication with the controller. During operation, the indicator generates an alert in response to commands received from the controller, the alert being identifiable by a user and indicative of the remaining useful life of the razor cartridge.