Manual Toothbrush Handle Recess for Permanent Identifier Bonding

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Solution Overview

Problem

Manual toothbrushes face challenges in distinguishing high-quality original products from counterfeit versions, as the difference between originals and copies can be difficult to recognize.

Innovation Solution

A manual toothbrush design featuring an elongated handle with a recess and an identifier body anchored in a materially bonded manner at the handle end side, providing a permanent and visible identifier that cannot be removed by hand.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If an identifier is attached on the handle part end side (e.g., as a cap), then the identifier is visible to the user, but it interferes with the user during normal handling and can be manually removed

Engineering Contradiction:
Improveproduct identificationVSAvoidhandling comfort
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The identifier body is nested inside a recess in the handle part end side, creating a integrated structure where the identifier is visible but does not protrude to interfere with handling. The identifier body is materially bonded within the recess, making it permanently anchored and不可拆卸.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Loss of information

If an identifier is attached on the handle part end side, then the identifier is visible to the user, but it can be manually removed without destroying the product

Engineering Contradiction:
Improveproduct identificationVSAvoididentifier permanence
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The identifier body is nested inside a recess in the handle part end side, creating a integrated structure where the identifier is visible but does not protrude to interfere with handling. The identifier body is materially bonded within the recess, making it permanently anchored and不可拆卸.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The recess is pre-formed in the handle part end side with dimensions and material properties designed to materially bond the identifier body. This preliminary preparation ensures that when the identifier body is inserted, it becomes permanently anchored through material bonding, preventing manual removal.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If the identifier body is materially bonded in the recess, then no bacteria can penetrate into the recess, but the production process becomes more complex

Engineering Contradiction:
Improvebacterial contaminationVSAvoidproduction complexity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The recess is pre-formed in the handle part end side with dimensions and material properties designed to materially bond the identifier body. This preliminary preparation ensures that when the identifier body is inserted, it becomes permanently anchored through material bonding, creating a sealed structure that prevents bacterial penetration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The material properties of either the handle part or the identifier body are modified to enable material bonding. This could involve changing surface energy, melting point, or other material parameters to create a bonding interface that seals the recess and prevents bacterial contamination.

Inventive Principle:
Principle #35Parameter changes

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 solution ensures that the toothbrush has a permanent identifier visible to the user without interfering with handling, effectively preventing confusion with counterfeit products and maintaining hygiene by preventing bacterial penetration.

Implementation Method 1

The identifier body is anchored in a materially bonded manner, i.e. no liquid can penetrate into the recess in the handle part

Methodology Applied
Scientific EffectMaterial bonding: Adhesive

Data Source

PatentUS20250194786A1Manual toothbrush
Publication Date: 2025.06.19 CURADEN
  • US20250194786A1 patent drawing
  • US20250194786A1 patent drawing

AI summary

A manual toothbrush (1) includes an elongated handle part (2) defining a geometric handle part longitudinal axis (10) and a bristle plate (4). The handle part (2) has a recess (6) defined therein and a handle part end side (5) extending transverse to the handle part longitudinal axis. An identifier body (8) is anchored in the handle part end side in a non-detachable manner, e.g., in a material bonded manner. The manual toothbrush is enclosed in a sealed sales package.