Pocket Toothbrush With Sliding Head and Integrated Toothpaste

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Solution Overview

Problem

Conventional toothbrushes are not easily portable and thus not readily available when needed, posing a challenge in maintaining oral hygiene on the go.

Innovation Solution

A foldable pocket toothbrush design with a case, head, rod, sliding ring, reservoir, and operating buttons that allows the toothbrush to be compactly carried and easily deployed for use with integrated toothpaste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional toothbrush is packaged in a standard container, then the toothbrush is protected and easy to store, but it cannot be carried in a pocket and is not readily available when needed

Engineering Contradiction:
ImproveAvailability of toothbrushVSAvoidSize of toothbrush package
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The toothbrush is nested within a compact case that houses both the brush and integrated toothpaste reservoir. The brush head, rod, and reservoir are arranged in a nested configuration where the brush fits inside the case containing the toothpaste, creating a pocket-sized unit that can be carried conveniently while maintaining protection and readiness for use

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of moving object

If a toothbrush is made compact for pocket carrying, then portability is improved, but the complexity of deployment and storage mechanisms increases

Engineering Contradiction:
ImproveSize of toothbrush packageVSAvoidStructure of foldable mechanism
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The toothbrush employs dynamic mechanisms including a sliding ring that moves along the rod to deploy or retract the brush head, and buttons that trigger reservoir opening and toothpaste dispensing. These dynamic elements allow the compact structure to transform from a stored state to an operational state and back, maintaining pocketability while enabling full functionality through controlled movement and mechanical action

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If toothpaste is integrated into the toothbrush case, then convenience of carrying both items is improved, but the device complexity and number of components increases

Engineering Contradiction:
ImproveConvenience of carrying toothbrush and toothpasteVSAvoidNumber of components
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention merges the toothbrush and toothpaste into a single integrated unit. The reservoir containing toothpaste is incorporated within the case that also houses the brush, eliminating the need to carry separate toothpaste tubes or containers. This consolidation reduces the number of separate items to carry while providing all necessary oral hygiene components in one compact package

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4714296A1Foldable pocket toothbrush
Publication Date: 2026.03.25 FIOT LÖIC LUCIEN JOSÉ
  • EP4714296A1 patent drawingFigure 1~2
  • EP4714296A1 patent drawingFigure 3~4
  • EP4714296A1 patent drawing

AI summary

The invention relates to a foldable pocket toothbrush that comprises a case (1), a head(2)having bristles (8) and attached to a rod (3) to form a head piece, a sliding ring (4) connected to the rod (3) to move the head piece in a first direction between a first position in which the head piece is inside the case (1) and a second position in which the head (2) is protruding, a toothpaste reservoir (5), a cover (6), and at least two operating means (7) formed by a first button (7.1) connected to the sliding ring (4) and a second button (7.2) for emptying the reservoir (5) through an opening (11).