Versatile Shaver With Wheel And Finger Hook
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Solution Overview
Problem
Existing shaving devices lack versatility and stability, particularly when shaving sensitive areas like the scalp and face, as they often require fixed angles and grips that do not accommodate different body shapes or sizes effectively.
Innovation Solution
A shaver design featuring a wheel on one side of the blade, an adjustable finger hook, and a waist indentation for improved grip options, allowing for both 'palm grip' and 'waist grip' configurations to enhance stability and control across various body regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed blade angle in a traditional razor system is used, then the cutting angle is automatically effective for straight shaving strokes, but the device lacks versatility for different body areas and grip styles
Solution Approach 1:
The patent implements a swivel mechanism that allows the blade cartridge to pivot dynamically relative to the handle, enabling the cutting angle to adjust automatically based on the shaving direction and body contour, thus providing both versatility and effective cutting angle maintenance
Solution Approach 2:
The shaver is designed with multiple grip options (hand grip, palm grip, finger grip) and an adjustable blade angle mechanism, making it universally applicable to different body areas (face, scalp, legs, arms) while maintaining effective shaving performance through the swivel cartridge
2Ease of operation
If a straight handle design is used, then the device is simple and effective for face shaving, but it provides poor stability and control when shaving the scalp
Solution Approach 1:
The handle features an asymmetric design with a pronounced waist indentation and an enlarged upper section, creating distinct grip zones that provide enhanced stability for scalp shaving while maintaining simplicity for face shaving applications
Solution Approach 2:
The handle transitions from a simple linear shape to a three-dimensional form with waist indentation and enlarged upper section, adding vertical and lateral dimensions to the grip structure that improve control without significantly increasing overall complexity
3Adaptability or versatility
If a single grip configuration is used, then the device is easy to manufacture, but it cannot accommodate different finger sizes and grip preferences
Solution Approach 1:
The handle features locally differentiated surfaces with a waist indentation and enlarged upper section, creating specific grip zones with different geometries that accommodate various finger sizes and grip styles without requiring complete redesign of the entire handle
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 design provides improved comfort, reduced friction, and better control during shaving, enabling effective use on multiple body areas, including the scalp, face, and torso, by accommodating different grip styles and sizes.
Implementation Method 1
a wheel or other rolling device on the same side as the razor blade
Implementation Method 2
A resilient plastic spring arm allows the cartridge to flex at its attachment point so that downward pressure on the shaver will cause the entire cartridge to flex so that it is parallel to the planar surface on which it rests
Data Source
AI summary
A versatile shaver has a shaver body with a blade cartridge mounted at one end of the underside and a rotating wheel at the other end. A resilient finger hook and associated pads are located on an upper surface. A user can insert an index finger through the hook and use the shaver in a palm grip to shave the scalp. The shaver body narrows between the blade end and the wheel end thus facilitating a grip between the fingers and thumb for ready shaving of the face.