Razor With Retractable Trimming Blade
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Solution Overview
Problem
Conventional non-electric razors lack the functionality to safely trim nose and ear hair due to their wide blade design, which makes it difficult to navigate the nasal cavity and ear canal, leading to potential injury when users attempt to use them for these purposes.
Innovation Solution
A non-electric razor with a retractable trimming blade that can be deployed and retracted using a plunger mechanism, allowing for precise trimming of nose and ear hair, featuring a linkage system that extends the blade from the head for trimming and retracts it for safe storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional razor blade is used for trimming nose and ear hair, then the razor can shave facial or leg hair, but the wide blade design makes it difficult to navigate the nasal cavity and ear canal, leading to potential injury
Solution Approach 1:
The razor head is segmented into multiple functional zones: a wide razor blade area for facial/leg hair and a separate retractable trimming blade area for nose/ear hair. This segmentation allows each blade to be optimized for its specific function while maintaining safety, as the trimming blade can be retracted when not needed for narrow area trimming.
Solution Approach 2:
The trimming blade is made dynamic through the retraction mechanism, allowing it to extend when needed for nose/ear hair trimming and retract when not needed. This dynamic configuration enables the razor to adapt between different trimming tasks, providing the versatility to handle both wide and narrow areas safely.
2Adaptability or versatility
If a separate device is used for trimming nose and ear hair, then the trimming function can be performed, but the user must carry and operate multiple devices
Solution Approach 1:
The razor is designed with multi-functionality, combining both the wide razor blade for facial/leg hair and the retractable trimming blade for nose/ear hair into a single device. This universal design eliminates the need for separate trimming devices, reducing the number of items users must carry and operate while maintaining all necessary trimming capabilities.
3Ease of operation
If the trimming blade is always extended, then trimming is always available, but the blade cannot be safely stored and may cause injury
Solution Approach 1:
The trimming blade transitions between extended and retracted states based on operational needs. When trimming is required, the blade extends to provide accessibility. When trimming is not required, the blade retracts to eliminate injury risk. This dynamic state change allows the system to optimize both ease of operation and safety at different times.
Solution Approach 2:
The trimming blade can be completely extracted or retracted into the razor head when not in use, removing it from the potential harm zone. This extraction mechanism ensures that the blade is only present and accessible when actively needed for trimming, thereby eliminating the risk of injury from a permanently exposed blade.
Data Source
AI summary
A razor for shaving hair and trimming nose hair, including a head with a razor blade for shaving hair, the head having a head side and a trimming blade for cutting nose hair, the trimming blade extending from the head side of the head when deployed, and the trimming blade being recessed completely in the head when retracted. A method for deploying a trimming blade on a razor for shaving hair and trimming nose hair, including depressing a plunger on a handle, engaging a linkage system in a handle that connects the plunger to a trimming blade on a head, the head including a razor blade for shaving hair, deploying the trimming blade from said head, depressing the plunger on the handle again, and retracting the trimming blade into a razor side of the head.