Nested Model Toy Assembly for Independent Skin and Skeleton

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Solution Overview

Problem

Existing doll toys with outer skins cannot be assembled independently of the skeleton body, limiting their versatility and assembly options.

Innovation Solution

A model toy design that allows the outer skin and skeleton body to be assembled independently, with the outer skin having a first appearance and the skeleton having a second appearance, and the skeleton being capable of being housed within the outer skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the outer skin is designed to cover the skeleton body, then the toy achieves a complete appearance, but the outer skin cannot be assembled independently

Engineering Contradiction:
Improveassembly flexibilityVSAvoidstructure integration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The toy is divided into two independently assembleable structures: a first structure (outer skin) and a second structure (skeleton body). Each structure can be assembled separately using its own components, allowing the outer skin to be constructed without requiring the skeleton body, thereby resolving the contradiction between complete appearance and independent assembly capability

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the outer skin and skeleton body are integrated, then the toy structure is stable, but the outer skin loses independent assembly capability

Engineering Contradiction:
Improvestructural stabilityVSAvoidindependent assembly
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The second structure (skeleton body) is designed to be housed within the first structure (outer skin), creating a nested configuration. This allows both structures to maintain their own structural integrity and stability while enabling independent assembly - the outer skin can be assembled first, then the skeleton body can be inserted within it, resolving the contradiction between structural stability and independent assembly capability

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS20260042027A1Model toy
Publication Date: 2026.02.12 BANDAI CO LTD
  • US20260042027A1 patent drawing
  • US20260042027A1 patent drawing
  • US20260042027A1 patent drawing

AI summary

A model toy includes a plurality of first toy components constituting the model toy, and a plurality of second toy components constituting the model toy, wherein the plurality of first toy components constitute a first structure having a first appearance of the model toy by being connected without the second toy component interposed therebetween, wherein the plurality of second toy components constitute a second structure having a second appearance, different from the first appearance, of the model toy by being connected without the first toy component interposed therebetween, and wherein the model toy is configured to be capable of housing the second structure in the first structure.