Hollow Frame Model Kit Reducing Plaster Mass and Storage Volume
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Solution Overview
Problem
Existing science kits with non-miniaturized models face challenges in being commercially viable due to high materials and logistical costs associated with bulky structures, leading to either miniaturization or increased prices.
Innovation Solution
A model science kit using a plurality of flat support members to create a hollow frame, which is then covered with self-adhering and moldable plaster materials to form surfaces, reducing material usage and costs while allowing for compact storage and assembly of larger models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If non-miniaturized models are used in science kits, then model size and visual appeal are improved, but materials costs and logistical expenses increase
Solution Approach 1:
The model construction kit divides the model into a frame structure and surface layers. The frame is constructed from interconnected flat members that form a hollow or partially hollow structure, requiring significantly less plaster or modeling material compared to solid models. This segmentation allows students to build large-scale models while using minimal materials, resolving the contradiction between model size and materials cost.
Solution Approach 2:
The patent employs thin sheet materials (such as plaster sheets, paper-mache, or fabric) to cover the frame structure and form the model surfaces. These thin films provide the necessary visual appearance and structural integrity while using minimal material quantity. The thin film approach allows large model dimensions without proportionally increasing materials cost, directly addressing the technical contradiction.
2Length of stationary object
If non-miniaturized models are used in science kits, then model size is improved, but storage and shipping volume increase
Solution Approach 1:
The model kit segments the construction into separate components (frame members, surface sheets, filling materials) that can be packaged in a compact, space-efficient manner. The flat members and sheets can be stacked and nested, minimizing the kit's storage and shipping volume while still allowing assembly of large-scale models at the destination.
Solution Approach 2:
The kit components are designed to nest within each other during storage and shipping. Smaller flat members can be placed within the framework of larger members, and surface sheets can be stored within the assembled frame structure. This nesting arrangement dramatically reduces the volume required for storage and shipping while preserving the capability to construct large models.
3Strength
If traditional molding methods are used, then model structural integrity is ensured, but material usage and costs increase
Solution Approach 1:
The frame structure provides the primary structural integrity, while the surface layers (plaster sheets, paper-mache, or fabric) provide only the necessary visual appearance and minimal structural support. This segmentation allows the model to maintain strength through its geometric frame rather than requiring massive material quantities, significantly reducing plaster usage while preserving structural integrity.
Solution Approach 2:
The model employs composite construction combining a rigid frame (made from materials such as wood, metal, or rigid plastic flat members) with lighter surface materials (plaster sheets, paper-mache, or fabric). This composite approach provides structural integrity through the strong frame while using minimal plaster or modeling material, resolving the contradiction between strength and material quantity.
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
This approach significantly reduces material costs and logistical expenses by minimizing plaster usage and enabling the production of larger models at a competitive price, while maintaining structural integrity and visual appeal.
Implementation Method 1
a first material which is in the shape of a flat sheet when fully extended, and which becomes self-adhering when saturated with water and which dries into a hardened material
Implementation Method 2
a first material which is in the shape of a flat sheet when fully extended, and which becomes self-adhering when saturated with water and which dries into a hardened material
Implementation Method 3
a second material which becomes moldable when saturated with water and which dries into a hardened material
Implementation Method 4
a second material which becomes moldable when saturated with water and which dries into a hardened material
Data Source
AI summary
Disclosed is an improved model kit including a plurality of support members for constructing a hollow frame upon which one or more surfaces can be constructed. The kit may include flat support members having slots, a first material which is in the shape of a flat sheet when fully extended, and which becomes self-adhering when saturated with water and which dries into a hardened material, a second material which becomes moldable when saturated with water and which dries into a hardened material, where the plurality of flat members are configured to interconnect with each other to form a hollow frame, where the first material can be laid over the hollow frame to form a first surface, and where the second material can be laid over the first surface to form a second surface. The improved model kit may be efficient, cost-effective, visually appealing, easy to assemble, and compact when stored.