Motorized Children's Book Using Foam Material and Chassis
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Solution Overview
Problem
Existing children's books with thick cardboard pages are too heavy for motorized wheels due to the weight of a motor, making it impossible to create a motorized toy without exceeding the weight limit, and traditional wheel fixation methods are not suitable for adding a motor.
Innovation Solution
A children's book with pages made of light and flexible material, such as 'Eva foam', allows for the integration of a small motor and its transmission mechanism in a notch on the edge, mounted on a frame with tabs, enabling mobility with wheels or articulated rods, maintaining the book's structural integrity and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thick cardboard pages are used to ensure sturdiness, then the book becomes sturdy enough to hold vertically, but the weight increases making it impossible to add a motor
Solution Approach 1:
The patent changes the material parameter from traditional thick cardboard to foam material (such as polyethylene foam), which provides comparable structural strength and vertical stability while significantly reducing the weight. This material substitution enables the book to support a motor without exceeding weight limits, resolving the contradiction between sturdiness and weight.
2Stability of the object's composition
If traditional wheel fixation methods are used with thick cardboard pages, then the book structure is maintained, but the motor cannot be integrated
Solution Approach 1:
The patent segments the book structure by creating a specific recess or cavity in the foam material at the bottom of the book. This segmentation allows the motor to be integrated into the book structure without compromising the overall structural integrity. The foam material's properties enable this segmentation while maintaining strength, unlike traditional cardboard pages.
3Adaptability or versatility
If a motor is added to create a motorized toy, then the book becomes entertaining and mobile, but the weight exceeds the limit for children's books
Solution Approach 1:
The patent changes the material parameter from dense cardboard to lightweight foam material, which provides the necessary structural strength while significantly reducing weight. This material substitution creates sufficient weight margin to accommodate a small motor (such as a friction motor, spring motor, or electric motor) without exceeding the weight limit for children's books, enabling motorized functionality.
Data Source
Figure 1~2
Figure 3~4
AI summary
The book has a set of papers (2), in which sides of each paper carries a design representing a person, animal or small scenery with a short text. A locomotion device is constituted of wheels (4) driven by a motor e.g. friction motor. The wheels are mounted on a middle paper (1) of the book using a chassis (7). The papers (2) comprise indentations for permitting closing of the book by forming a wheel housing letting the wheels free from turning.