Toy Building Element With Biconcave Transition For Angled Connections

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Solution Overview

Problem

Existing building blocks for children lack flexibility and creativity in forming structures with angles less than 90 degrees without gaps or holes, limiting design options and stability.

Innovation Solution

A component system featuring biconcave transition areas with circular discs that fit harmoniously, allowing for a wide range of angles from 60° to 300° without the need for special corner blocks, and a peg and hole system for stability, enabling easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional building blocks are used, then structures can be built with basic geometric shapes, but flexibility in forming angles less than 90 degrees is limited and gaps or holes appear in the wall surface

Engineering Contradiction:
Improveflexibility in forming anglesVSAvoiduninterrupted wall surface
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The building element incorporates circular disc areas with biconcave transition zones having specific radii of curvature. The transition area's radius of curvature matches the circular disc area radius, enabling seamless angular connections. This curvature design allows blocks to fit together at various angles (60° to 300°) without gaps or holes in the wall surface.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Stability of the object's composition

If components are designed for stable connection, then structures are held together firmly, but movability and flexibility are reduced

Engineering Contradiction:
Improvestructural stabilityVSAvoidmovability of structures
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The building element design enables structures to be both stable and movable. The peg and hole system provides firm connection, while the biconcave transition areas with matching radii allow components to be assembled and disassembled easily. Children can build stable structures that remain adjustable and movable relative to each other.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If precise geometric manufacturing is required, then assembly accuracy is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improveassembly accuracyVSAvoidmanufacturing simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The invention specifies precise radius parameters for the circular disc areas and biconcave transition zones, where the transition area's radius of curvature equals the circular disc area radius. This parameter relationship enables seamless fitting and easy assembly while maintaining manufacturability through standardized geometric definitions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2978514B1Building element and system having such a building element
Publication Date: 2017.05.10 DAHLHAUSEN PETER
  • EP2978514B1 patent drawingFigure 1a
  • EP2978514B1 patent drawingFigure 1b
  • EP2978514B1 patent drawingFigure 1c

AI summary

The invention relates to a building element, in particular a toy building element, having a first region (1) which is formed by a circular disc having a first radius (r) and a first centre point (M1), and a second region (2) which is formed by a circular disc having the first radius (r) and a second centre point (M2). The centre points have a spacing of twice the first radius (r). The building element further has a biconcave transition region (4) which extends on both sides of the line connecting the centre points and which has a first boundary line (30) and a second boundary line (31), wherein the mid-perpendicular of the path connecting the centre points intersects the first boundary line (30) at a first point (P1) and the second boundary line (31) at a second point (P2). The radius of the osculating circle in each case osculating the biconcave transition region (4) from outside at the first point (P1) and at the second point (P2) is in each case equal to the first radius (r). The first region (1) and the second region (2) additionally have in each case a central peg (13, 13') on an upper side (11), which peg extends perpendicularly to the respective circular disc, and in each case a central cutout (14, 14') on an underside (12).