Rod-Shaped Toy Module with Ferromagnetic Covers
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Solution Overview
Problem
Conventional magnetic construction kits with steel balls have size restrictions due to the weight of the steel balls, limiting the complexity and size of structures children can assemble.
Innovation Solution
A non-magnetic module with ferromagnetic covers, made of thermoplastic or thermosetting materials, that can be used with or without magnets, allowing for larger structure assembly by reducing weight through the use of lightweight materials and secure ferromagnetic domes that attach to the module ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If steel balls are used in conventional magnetic construction kits, then magnetic connection is achieved, but the weight increases limiting structure size
Solution Approach 1:
The module is divided into three distinct sections: a mid-section with one cross-sectional shape and two opposed ends with different cross-sectional shapes. This segmentation allows each section to be optimized independently, with the ends designed to connect to balls while the mid-section provides structural integrity, reducing overall weight compared to conventional uniform magnetic modules.
Solution Approach 2:
The module combines non-magnetic materials (thermoplastic or thermosetting polymers) with ferromagnetic covers at the ends. This composite structure allows the main body to be lightweight while the ferromagnetic ends provide the necessary magnetic connection properties, eliminating the need for heavy steel balls.
2Weight of moving object
If non-magnetic materials are used for the module body, then weight is reduced, but magnetic connection capability is lost
Solution Approach 1:
The module has different material properties at different locations: the mid-section is made of non-magnetic lightweight material (thermoplastic or thermosetting polymer) while the opposed ends have ferromagnetic covers. This local differentiation allows the body to be lightweight while the ends provide reliable magnetic connection capability.
Solution Approach 2:
The ferromagnetic covers act as intermediaries between the non-magnetic module body and other magnetic construction elements. These covers enable magnetic connection without requiring the entire module body to be magnetic, thus maintaining lightweight construction while ensuring connection reliability.
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 the assembly of larger and more complex structures compared to conventional magnetic construction kits, providing enhanced entertainment and creativity for children while maintaining compatibility with existing magnetic kits.
Implementation Method 1
modules having magnets embedded in them that enable the modules to be connected to each other or to modules without magnets via magnetism
Data Source
AI summary
A module for a toy construction kit includes an elongated, monolithic body made from a non-magnetic material and having a central section, a pair of opposed ends, and a pair of tapered neck sections, one of which is positioned between the central section and one end of the body and the other of which is positioned between the central section and the other end of the body. One end of the body is at least partially covered by a pair of dome-shaped shells positioned on opposed sides thereof. The other end of the body is at least partially covered by another pair of dome-shaped shells positioned on diametrically opposed sides thereof. Each one of the shells is made from a magnetic material and is provided with a receptacle for receiving a plug of the non-magnetic material which forms a corresponding end of the body to thereby secure the shells to the body when the body and shells are integrated by way of a co-molding process.