Coaxial Rotating Puzzle Platform With Drawers for Large Puzzle Access

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Solution Overview

Problem

Existing puzzles with high piece counts require large playing surfaces, making it difficult for players to reach all pieces and often result in lost or misplaced pieces during assembly.

Innovation Solution

A movable puzzle platform with a rotating assembly and supplemental drawers that allows the puzzle board to be rotated and moved easily, while retaining unfinished pieces in dedicated compartments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If a motor is directly coupled with a gear unit to drive puzzle pieces, then the driving force is sufficient, but the assembly complexity and manufacturing difficulty increase significantly

Engineering Contradiction:
Improvedriving forceVSAvoidassembly complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The drive system is divided into independent modules: motor units with gear mechanisms are separated from the base board and integrated directly into puzzle piece holders. Each puzzle piece assembly becomes a self-contained unit with its own driving mechanism, eliminating the need for a centralized complex transmission system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A gear unit acts as an intermediary between the motor and the puzzle piece holder. The gear unit transmits and transforms the motor's rotational motion into the appropriate motion for moving puzzle pieces, while maintaining a simple overall structure through modular integration.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If multiple puzzle pieces are moved simultaneously by a centralized motor, then the control is centralized, but the device complexity and difficulty of assembly increase

Engineering Contradiction:
Improvecontrol centralizationVSAvoidassembly difficulty
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The puzzle board is divided into multiple independent puzzle piece holders, each capable of being controlled by its own motor unit. This segmentation allows for simplified assembly where each module can be independently manufactured and then assembled into the complete puzzle system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each puzzle piece holder is designed with universal features that allow it to function both as a storage location for puzzle pieces and as a movable platform. The standardized design enables multiple holders to be assembled in various configurations while maintaining consistent control mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If puzzle pieces are moved on a fixed board, then the structure is simple, but the versatility and adaptability of the puzzle system is limited

Engineering Contradiction:
Improvestructure simplicityVSAvoidpuzzle configuration flexibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The puzzle piece holders are designed to be movable rather than fixed, allowing dynamic reconfiguration of the puzzle board. Each holder can be independently positioned and moved, enabling the creation of different puzzle layouts and configurations while maintaining a relatively simple base structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The puzzle piece holders are designed to nest within or alongside each other, allowing compact storage when not in use and flexible arrangement when assembled. The nested design enables multiple holders to be integrated into a cohesive system without requiring excessive space or structural complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 convenient assembly of large puzzles without losing pieces, allowing players to efficiently complete puzzles from any side of the board and reducing the time and frustration associated with larger puzzles.

Implementation Method 1

a first bearing unit coupled between the first moving member and the second moving member. The first moving member is rotatably mounted to the second moving member by the first bearing unit

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4520412B1Movable puzzle platform
Publication Date: 2026.05.13 CHE XIAOLING
  • EP4520412B1 patent drawingFigure 1
  • EP4520412B1 patent drawingFigure 2
  • EP4520412B1 patent drawingFigure 3~4

AI summary

A movable puzzle platform for placing a plurality of puzzle pieces thereon, includes: a puzzle board comprising a top surface for placing the puzzle piece thereon; and a board accessible unit coupled with the puzzle board and comprising a first moving member, a second moving member, and a first bearing unit coupled between the first moving member and the second moving member. The first moving member is rotatably mounted to the second moving member by the first bearing unit. At least a part of an outer circumferential surface of the first moving member is directly opposite to and facing at least a part of an inner circumferential surface of the second moving member via the first bearing unit to enable the second moving member to be coaxially rotated with respect to the first moving member.