Removable Pacifier Tip Front-Face Locking Mechanism

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Solution Overview

Problem

Existing pacifiers pose safety and hygiene issues due to complex assembly requirements and the need for frequent replacement of the teat, which can lead to assembly complications and potential ingestion of parts.

Innovation Solution

A childcare article with a base and a removably mounted end piece, featuring a locking device with a movable locking member and abutment member that allows for simple and intuitive assembly and replacement of the end piece through the front face, ensuring safety and hygiene standards are met.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the base is dismantled to allow end piece replacement, then the end piece can be mounted on the base, but the number of parts increases and assembly complexity rises

Engineering Contradiction:
Improveend piece replacementVSAvoidnumber of parts
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Instead of accessing the end piece through the rear face by dismantling the base, the mounting opening is provided on the front face of the base. This inversion of the mounting access location allows direct insertion of the end piece base into the housing through the front face, eliminating the need to dismantle the base and reducing the number of assembly steps and parts.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If the base is dismantled for end piece assembly, then the end piece can be installed, but safety problems arise due to potential part loss

Engineering Contradiction:
Improveend piece assemblyVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

By providing the mounting opening on the front face instead of requiring rear face access through base dismantling, the invention eliminates the safety risks associated with part loss during assembly. The end piece base is directly inserted into the housing through the front face mounting opening, ensuring all parts remain accounted for and reducing safety hazards.

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If the end piece is made deformable with shape memory, then the child can experience natural sensations, but the end piece wears quickly and requires frequent replacement

Engineering Contradiction:
ImprovecomfortVSAvoidend piece lifespan
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The end piece is designed with deformable material having shape memory, allowing it to dynamically adapt its shape during use to provide natural sensations for the child. The locking device enables easy replacement when the end piece wears out, maintaining the beneficial dynamic properties while addressing the limited lifespan through simplified maintenance.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The removable end piece design allows the worn end piece to be easily discarded and replaced through the front face mounting opening. The base and housing remain reusable, and the simple replacement mechanism makes frequent end piece changes convenient for hygiene and comfort maintenance.

Inventive Principle:
Principle #34Discarding and recovering

4Reliability

If a locking device is added to secure the end piece, then retention is improved, but the assembly process becomes more complex

Engineering Contradiction:
Improveend piece retentionVSAvoidlocking mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking member is designed to be automatically actuated by the relative movement between the end piece base and housing during assembly. When the end piece base is inserted into the housing through the front face mounting opening, the locking member engages automatically without requiring manual operation, providing secure retention while keeping the assembly process simple.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3413863B1Child care item, tip specially adapted for such a child care item and method for mounting such a child care item
Publication Date: 2020.02.12 EVALIA
  • EP3413863B1 patent drawingFigure 1~2
  • EP3413863B1 patent drawingFigure 3
  • EP3413863B1 patent drawingFigure 4

AI summary

The invention relates to a child care item (1) which includes: a seat (2) comprising on the inside a recess (4) opening onto a front surface (2a) of the seat (2) via an assembly opening (26); a tip (35) comprising a base (40) and a body (36) intended for being placed in the mouth of a child, the tip (35) being removably assembled on the seat (2) by inserting the base (40) into the recess (4) of the seat (2) through the assembly opening (26) by the front surface (2a) of the seat (2); and a device for locking the base (40) of the tip (35) in the recess (4) of the seat (2).