Integral Razor Handle Element for Grip and Manufacturing

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Solution Overview

Problem

Existing razor handles face challenges in incorporating an insert member without increasing manufacturing time and costs, and there is a risk of the insert detaching inadvertently.

Innovation Solution

The razor handle features a first hole with an interior space and an integral element within the elongated body, where the element is smaller than the hole and has a different shape, allowing for easier manufacturing and integration without a separate insert, using materials like plastics and rubbers, and incorporating a second hole with an immovable insert for improved grip and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an insert member is incorporated in the razor handle, then the shaving experience is improved, but the manufacturing time and costs increase

Engineering Contradiction:

Improveshaving experienceVSAvoidmanufacturing time

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The element is made integral with the elongated body, combining what were previously separate components (the element and the handle body) into a single molded piece, thereby eliminating the need for separate insert operations and reducing manufacturing steps

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The element serves multiple functions: it provides a finger rest area for ergonomic gripping, acts as a structural component within the handle, and contributes to the overall aesthetics, thereby achieving functional versatility without requiring additional separate components

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If an insert member is incorporated in the razor handle, then the shaving experience is improved, but the manufacturing costs increase

Engineering Contradiction:

Improveshaving experienceVSAvoidmanufacturing costs

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The element is integrated into the elongated body through a single molding process, eliminating the need for separate insert members and assembly operations, thereby reducing manufacturing complexity and costs

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The element is molded within the elongated body during the initial molding process, preparing the structure in advance and eliminating the need for subsequent insert operations or post-assembly steps

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If an insert member is used in the razor handle, then additional functionality is provided, but the risk of inadvertent detachment increases

Engineering Contradiction:

Improveadditional functionalityVSAvoidattachment stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The element is made integral with the elongated body, merging the element and handle into a single structural unit that cannot detach, thereby eliminating the reliability issue associated with separate insert members

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The element is molded within the elongated body during the initial molding process, creating permanent bonds between the element and the handle structure, thereby preventing any possibility of inadvertent detachment during use

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3177441B1A razor handle comprising an element within a hole and razor comprising such a razor handle

Publication Date: 2020.10.14 BIC VIOLEX SA

Figure 1~2
Figure 3A
Figure 3B

AI summary

A razor handle (2) comprising an elongated body (4) extending in a longitudinal direction (C), said elongated body (4) having an outer surface (4E) and being provided with a first hole (9) opening on said outer surface (4E), the razor handle (2) further comprising an element (12) provided within said first hole (9), said element (12) being integral with the elongated body (4) and having a shape that is different from the shape of said first hole (9).