Magnetic Doll Head Contour Adjustment Mechanism
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Solution Overview
Problem
Existing doll heads lack dynamic and life-like facial expressions, with static facial features that fail to engage users, and lack independently operable eye movement and realistic eye interaction, relying on gravity or mechanical means for limited movement.
Innovation Solution
A doll head with a magnetically adjustable facial contour using a rigid face mask support and a flexibly resilient face mask, equipped with first and second magnets for secure attachment and adjustment, along with solenoids to reorient the magnetic field, allowing for dynamic movement of facial features and independent eye operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interchangeable parts are used to change appearance, then variety of expression is improved, but ease of operation deteriorates because parts must be removed and exchanged
Solution Approach 1:
The patent replaces the mechanical system of interchangeable parts with a magnetic field system. The control magnet generates magnetic fields that interact with magnets embedded in facial feature components, enabling dynamic reconfiguration without physical assembly or disassembly. This substitution resolves the contradiction by maintaining adaptability through magnetic control while dramatically improving ease of operation.
Solution Approach 2:
The patent transforms static facial features into dynamic components that can be reconfigured in real-time. The facial contour members and eye elements are designed to be movable under magnetic actuation, allowing continuous adjustment of expressions rather than discrete changes between pre-fabricated parts. This dynamic approach enables both variety of expression and ease of operation.
2Adaptability or versatility
If the entire doll is moved to change eye position, then eye movement is achieved, but ease of operation deteriorates and realism is reduced
Solution Approach 1:
The patent segments the eye assembly into independently controllable components. Each eye element can be actuated separately by dedicated magnets positioned at specific locations within the head assembly. This segmentation allows one eye to move independently for winking or follows objects laterally, while the other remains stationary or moves differently, achieving realistic eye behavior without moving the entire doll.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary between the control system and eye elements. Rather than direct mechanical connection or gravity-dependent movement, the control magnets generate magnetic fields that mediate the movement of eye elements containing magnetic components. This intermediary approach enables precise, independent eye control with simple external actuation.
3Ease of manufacture
If static face masks are used, then manufacturing simplicity is maintained, but adaptability of facial expression deteriorates
Solution Approach 1:
The patent divides the face mask into multiple separable facial contour members, each containing embedded magnets. These segments can be independently positioned and reconfigured under magnetic control. The segmentation maintains manufacturing simplicity by allowing each component to be produced separately using standard techniques, while enabling complex dynamic expressions through coordinated positioning of the segments.
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (strength, direction, polarity) to control the positioning of facial contour members. By varying these magnetic parameters, a wide range of facial expressions can be achieved without changing the physical structure or materials of the components. This approach maintains manufacturing simplicity while maximizing adaptability through field-based control.
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
Enables dynamic and life-like facial expressions, including independent eye movement and winking, enhancing user engagement by providing a more realistic and interactive experience without the need for exchanging entire face masks or relying on gravity.
Implementation Method 1
The adjustment mechanism includes a solenoid capable of generating a magnetic field. The adjustment mechanism is adapted to reorient or move the magnetic field so as to cause movement of the second magnet
Implementation Method 2
a first magnet connectable to the face mask; and a second magnet adjustably connectable to the face mask support, the second magnet being adapted to magnetically couple to the first magnet for moving the first magnet as the second magnet is adjusted
Data Source
AI summary
A doll head is disclosed having a magnetically adjustable facial contour, along with a method for assembling same. In one embodiment, the doll head includes a face mask support on which is mounted an elastically deformable face mask. Movable adjustment mechanisms and associated motors and power supplies for moving the adjustment mechanisms are disposed in the face mask support. Each adjustment mechanism generates an applied magnetic field. First magnets are affixed to an inner surface of the face mask, and second magnets in magnetic communication with the first magnets are slidably disposed on an exterior surface of the face mask support. The adjustment mechanisms selectively apply magnetic fields that slidably adjust position of the second magnets. As position of the second magnets slidably adjust, the first magnets move to a like extent. As the first magnets move, contour of the face mask adjusts to change expression of the doll head.