Joint Building Block Assembly for Swinging and Split Leg Motion
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Solution Overview
Problem
Existing joint building block toys lack the ability to achieve both forward/backward leg swinging and left/right leg splitting movements, limiting their play value and aesthetic appeal.
Innovation Solution
A joint building block assembly with a unique connection structure allowing the limb building block to switch between upright, split, and leg lift states, featuring rotatable intermediate and limb building blocks with ball head and socket structures, providing 90° leg swinging and left/right splitting capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing joint building block toys use simple connection structures, then assembly is easy, but the range of motion is limited to forward/backward swinging only
Solution Approach 1:
The connection structure is divided into multiple functional components: a connection body with grooves, a rotatable intermediate building block with bosses, and a limb building block with spherical connection structure. This segmentation allows each component to perform a specific function (swinging, rotating, splitting) while working together to achieve comprehensive motion capability
Solution Approach 2:
The connection structure incorporates multiple degrees of freedom with grooves arranged at different orientations and a rotatable intermediate block. This dynamic design enables the limb to perform not only forward/backward swinging but also left/right splitting movements and rotational motions, significantly expanding the range of motion
2Adaptability or versatility
If more building blocks are used to achieve complex movements, then motion capability improves, but the number of required blocks increases
Solution Approach 1:
The intermediate building block serves multiple functions: it acts as a connector between the building block body and limb building block, provides rotational capability through its rotatable design, and enables splitting movements through its grooved structure. This multi-functionality reduces the need for additional specialized components
Solution Approach 2:
The spherical connection structure of the limb building block is designed to pass through the connection hole of the intermediate building block, creating a nested arrangement where the limb block can be inserted into and integrated with the intermediate block, forming a compact multi-functional joint assembly
3Adaptability or versatility
If the connection structure allows large amplitude movements, then play value increases, but stability during movement decreases
Solution Approach 1:
The grooves in the connection body and corresponding bosses on the intermediate building block are designed to engage beforehand during movement. As the limb building block swings or splits, the bosses slide along the grooves and engage at predetermined positions, providing stability and limiting extreme movements while allowing large amplitude motion
Data Source
Figure 1~3
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AI summary
A joint building block assembly, including: a building block body (1), where two sides of the building block body are each provided with a first connection structure (11); an intermediate building block (2), provided with a second connection structure (21), assembled to the first connection structure (11) via the second connection structure, and rotatable relative to the building block body (1); and a limb building block (3), provided with a third connection structure (31) and assembled outside the intermediate building block (2) via the third connection structure, where when the limb building block (3) moves left or right relative to the building block body (1) to switch between an upright state and a split state, the intermediate building block (2) moves between a first position and a second position relative to the first connection structure (11) under a compressive force from the limb building block (3). A toy including the joint building block assembly can achieve both forward/backward leg swinging and left/right leg splitting movements.