Rotating Doll Eye Pupil Structure for Variable Expressions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing doll eyes are single in expression, complex in structure, costly, and lack realistic rotation and connection stability, affecting production efficiency and aesthetics.
Innovation Solution
A doll eye with a changeable pupil structure featuring equidistant first openings on eyeballs for multiple expressions, a rotating shaft connecting two eyeballs, a clamping mechanism for stable attachment to the doll face, and a bottom housing for enhanced stability, using a clamping mechanism with different shaft diameters and arc-shaped grooves for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If printing or spraying methods are used for doll eyes, then the production process is simple, but the eye expressions are single and cannot be changed
Solution Approach 1:
The doll eye is segmented into multiple functional components: eyeball, pupil component with iris column, glass cover, and rotating shaft. This segmentation allows the pupil component to be independently rotated to change expressions while keeping the manufacturing process simple for each component
Solution Approach 2:
The patent introduces a rotating shaft that enables the pupil component to rotate dynamically, transforming the static printed eye into a dynamic expression-changing eye. The rotation mechanism allows the iris column to present different patterns while maintaining simple manufacturing for each static component
2Ease of operation
If complex gear transmission mechanisms or motor drives are used for rotatable eyeballs, then the eyeballs can rotate, but the structure becomes complex and cost increases
Solution Approach 1:
The patent extracts the essential rotation function from complex gear and motor systems, retaining only the necessary rotating shaft and clamping mechanism. This removes unnecessary transmission components while preserving the eyeball rotation capability, thereby simplifying the structure and reducing cost
Solution Approach 2:
Instead of using a motor to drive rotation, the patent allows manual rotation by the user. This inversion of the driving mechanism eliminates the need for motors and complex control systems, achieving rotation with minimal structure
3Ease of operation
If existing rotatable eyeball structures are used, then the eyeballs can rotate, but the connection stability between eyeball and doll face is poor
Solution Approach 1:
The rotating shaft features asymmetric design with different diameter sections (first diameter and second diameter) that correspond to different clamping grooves. This asymmetric structure provides unique positioning and prevents the eyeball from detaching or shifting, ensuring stable connection while allowing rotation
Data Source
AI summary
A doll eye with a changeable pupil structure includes an eye component, a doll face component, and a bottom housing, the eye component further comprises two eyeballs, each of the eyeball includes three first openings equidistantly formed on its surface, and each of the first opening is internally provided with a pupil component capable of expressing different eye expressions. The present invention provides three first openings equidistantly formed on each of the surface of the eyeball, and each of the first opening internally has a pupil component capable of expressing different eye expressions, so that the doll eye can present a variety of different eye expressions by rotating the eye component, more realistically simulating the activity of the human eye, thereby increasing the fun and interactivity of the doll, and improving the simulation and aesthetics of the doll.