Flexible Treatment Sheet Razor for Contour Shaving Precision

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Solution Overview

Problem

Existing shaving razors require multiple strokes in different directions to effectively remove body hair, especially in hard-to-reach areas, and can cause nicks and cuts due to lateral blade movement, with limited visibility and difficulty in navigating complex body contours.

Innovation Solution

A shaving apparatus with flexible treatment sheets secured to a substrate, allowing independent movement and equipped with support structures to stabilize brittle cutting edges, ensuring effective hair removal across varying body contours while minimizing blade movement and potential injuries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a rigid blade structure is used to maintain stability during shaving, then cutting precision is improved, but the ability to adapt to complex body contours deteriorates

Engineering Contradiction:

Improvecutting precisionVSAvoidadaptability to body contours

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The blade assembly is divided into multiple independent treatment sheets, each capable of moving relative to the others. This segmentation allows each blade segment to independently adapt to local contour variations while maintaining cutting precision through the rigid structure of individual blades.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The treatment sheets are designed to move dynamically in response to applied forces during shaving. The flexible substrate allows the rigid treatment sheets to pivot and adjust their orientation to match body contours, combining the stability of rigid cutting edges with the adaptability of flexible mounting.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple treatment sheets are used to cover complex contours, then adaptability is improved, but device complexity deteriorates

Engineering Contradiction:

Improveadaptability to body contoursVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple treatment sheets are combined onto a single flexible substrate, integrating multiple cutting surfaces into one cohesive device. This merging approach provides the adaptability of multiple independent treatment areas while avoiding the complexity of separate devices, as all sheets work together through the unified flexible substrate.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If the blade moves freely to follow body contours, then ease of operation is improved, but the risk of lateral blade movement causing nicks and cuts increases

Engineering Contradiction:

Improveease of operationVSAvoidrisk of nicks and cuts

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The flexible substrate pre-positions the treatment sheets to follow body contours before cutting begins. This preliminary adaptation ensures that the rigid cutting edges are already oriented correctly to match the skin surface geometry, allowing free movement to follow contours while preventing harmful lateral slippage during the cutting action.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260070245A1Shaving apparatus

Publication Date: 2026.03.12 THE GILLETTE CO

AI summary

The present invention is directed to a shaving apparatus. The shaving apparatus includes a flexible substrate and a plurality of treatment sheets, each treatment sheet comprising at least one first aperture, at least one first aperture comprising cutting edges, wherein the plurality of treatments sheets are secured to said flexible substrate. The flexible substrate allows the treatment sheets to move in response to a force applied during hair removal.