Female Head Building Block Socket for Seamless Click Assembly
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Solution Overview
Problem
Conventional building block toys with plug and socket structures have seams at the combination positions, leading to insufficient realistic appearance and impaired visual effect, particularly in anthropomorphic toys.
Innovation Solution
A socket building block with coaxially arranged bore sections of varying diameters, integrally formed by injection molding, and a plug building block with a boss that fits into these sections, providing audible and tactile feedback during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the socket building block is divided into two parts and combined by bonding, then the groove structure can be formed, but a seam appears at the combination position resulting in insufficient realistic appearance
Solution Approach 1:
The patent merges the socket portion and groove structure into a single integrally molded building block component. The socket portion includes a first bore section and a second bore section that are coaxially arranged, with the second bore section forming the groove structure. This integration eliminates the need for separate molding and bonding operations, thereby removing seams and achieving smooth surface appearance while maintaining manufacturability through integral injection molding.
2Shape
If the plug and socket are assembled with precise dimensional matching, then seamless integration is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs a nested structure where the plug portion with protrusion is inserted into the socket portion with coaxially arranged bore sections. The first bore section has a larger diameter to accommodate the protrusion, while the second bore section has a smaller diameter to form the groove structure. This nested arrangement with progressively smaller diameters (where the difference between maximum inner diameter of second bore section and inner diameter of first bore section is 0.01-0.2 mm) enables seamless integration while distributing dimensional requirements across multiple features, making precision control more manageable.
Data Source
Figure 1
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AI summary
Provided is a building block system, a connectable/separable building block structure, and a socket building block (2). The socket building block (2) includes a socket portion (200), where in a direction from an orifice (209) towards an interior of the socket portion (200), the socket portion (200) comprises a first bore section (201) and a second bore section (202) that are coaxially arranged; a maximum inner diameter of the second bore section (202) minus an inner diameter of the first bore section (201) is less than or equal to 0.2 mm; and the socket portion (200) is an integrally formed part. The structure of the socket building block is formed integrally by injection molding, enabling a plug building block (1) and the socket building block (2) to provide the user with an audible click feedback and a tactile feedback during assembly.