Pneumatic Control Structure for Low-Force Ear Unfolding

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Solution Overview

Problem

Existing control structures for toys, such as rabbit headgear, require a large acting force to unfold ears, leading to difficult operation and poor user experience.

Innovation Solution

A control structure comprising an air bag and actuating portion connected via a connecting pipe, where the air bag's volume is repeatedly increased and decreased to switch between folded and unfolded states, utilizing at least two moving portions to reduce the required force and facilitate operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional control structure with a single actuating portion is used, then the structure is simple, but a large acting force is required to unfold the ears leading to difficult operation

Engineering Contradiction:
Improveease of operationVSAvoidacting force
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The actuating portion is divided into at least two separate actuating portions (first actuating portion and second actuating portion), each capable of being independently filled with air. This segmentation allows the total acting force to be distributed across multiple smaller units, reducing the force required at each location and making the overall operation easier for users.

Inventive Principle:
Principle #1Segmentation

2Length of moving object

If the volume of the air bag is large to achieve large-scale movement of moving portions, then the movement effect is good, but the squeezing scale required is large making operation difficult

Engineering Contradiction:
Improvemovement scaleVSAvoidsqueezing scale
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The single large air bag is divided into multiple smaller air bags (first air bag and second air bag), each connected to its respective actuating portion. This allows the total volume to be distributed across multiple smaller units, achieving the same overall movement effect while requiring a smaller squeezing scale from the user.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses pneumatic pressure transmission through connecting pipes to transfer the force generated by squeezing the air bags to the actuating portions. This pneumatic mechanism amplifies the effect of small squeezing forces, enabling large-scale movement of the moving portions without requiring large manual squeezing forces.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 reduces the squeezing scale on the air bag, allowing for large-scale movement of the moving portions with uniform force distribution, enhancing user experience and ease of operation.

Implementation Method 1

when the volume of the air bag is decreased, air in the air bag is capable of entering the actuating portion, so that the moving portion is moved and the included angle between the fixed portion and the moving portion is increased

Methodology Applied
Scientific EffectPneumatic pressure: Pressure Increase

Data Source

PatentUS12349751B2Control structure and ornament
Publication Date: 2025.07.08 YANGZHOU HAOPU TOYS & GIFTS CO LTD
  • US12349751B2 patent drawing
  • US12349751B2 patent drawing
  • US12349751B2 patent drawing

AI summary

The invention relates to a control structure and an ornament, the control structure comprises an air bag and an actuating portion which are communicated, the actuating portion comprises a fixed portion and a moving portion which are connected at an included angle, the fixed portion is close to the air bag relative to the moving portion, at least two moving portions are provided, a volume of the air bag is capable of being repeatedly increased and decreased, and when the volume of the air bag is decreased, air in the air bag is capable of entering the actuating portion, so that the moving portion is moved and the included angle between the fixed portion and the moving portion is increased, thus switching a folded state of the actuating portion to an unfolded state.