Razor Grip Width Taper for Ergonomic Control
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Solution Overview
Problem
Existing razors face challenges in providing both ergonomic operability and precise control, especially in delicate zones like the genital and armpit areas, due to inadequate grip design and tangling of body hairs during trimming.
Innovation Solution
A razor design featuring a grip portion with a gradual increase in width, a comb portion to prevent hair tangling, and a connecting portion that enhances rigidity and durability, allowing for various gripping styles and improved visibility during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the width of the grip portion is made equal to or larger than the width of the head portion, then ergonomic operability and precise control are improved, but the device complexity increases
Solution Approach 1:
The grip portion is designed with a gradual width increase from the head portion toward the rear, creating a dynamic transition in dimensions. This gradual expansion allows the grip to adapt to different finger sizes and gripping styles, improving ergonomic operability while maintaining a relatively simple overall structure that does not require complex assembly components.
2Ease of operation
If a comb portion is added adjacent to the blade body, then hair tangling is prevented and trimming operation is improved, but the device complexity increases
Solution Approach 1:
The comb portion is integrated directly with the head portion structure, merging two functions (combing and cutting) into a single unified component. This integration allows the comb to guide hairs toward the blade while maintaining a compact design that does not require separate assemblies or complex mechanisms, thus improving trimming operation without significantly increasing device complexity.
3Measurement precision
If the width of the grip portion gradually increases from the head portion, then precise operation control is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The grip portion employs a gradual width increase parameter that transitions smoothly from the head portion. This continuous parameter change allows for precise operation control as the grip adapts to different finger positions, while the gradual nature of the transition reduces the need for high-precision manufacturing steps compared to abrupt dimensional changes, making the design more manufacturable.
Data Source
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AI summary
[Problem] To provide a rational configuration for a razor. [Solution] A razor 1 comprises: a head portion 3, a connecting portion 4 and a gripping portion 5. The width dimensions of the gripping portion 5 are set to be equal to or greater than the width dimension of the head portion 3 and to increase gradually toward the side leading away from the head portion 3. The connecting portion 4 linearly connects together both ends of the head portion 3 and both ends of the gripping portion 5. The height of the connecting portion 4 is set to be smaller than the height dimension of the head portion 3 and the height dimension of the gripping portion 5. The gripping portion 5 comprises a top surface part 50, a pair of the side wall parts 51, 52 and rib parts 57 that are slanted in the longitudinal direction, the vertical direction and the width direction. The top surface part 50, the pair of side wall parts 51, 52 and the rib parts 57 include placement surfaces 59 on which a user's fingers can be placed.