Rotating Axis Node for Mechanical Model Kits
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Solution Overview
Problem
Existing mechanical model construction kits fail to facilitate convenient and quick assembly of units with moving parts that rotate about a single axis without the use of glue or additional fixation elements, leading to rigidity issues.
Innovation Solution
A unit comprising two groups of parts with specific geometric features, including central holes, rectangular connecting holes, and protrusions, allowing for the formation of a central axial clearance that enables the axis to be inserted and wedged, providing a secure assembly without additional fixation elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional connection methods (inserting parts into connecting holes) are used, then assembly can be performed without glue, but the unit cannot be fixed rigidly enough
Solution Approach 1:
The parts of the second group are pre-grouped to form a central axial clearance between their central protrusions before the axis is inserted. This preliminary arrangement creates the conditions necessary for rigid fixation while maintaining ease of assembly, as the clearance is already formed and ready to receive the axis without requiring additional fixation elements.
Solution Approach 2:
The axis serves as an intermediary element that mediates between the first group of parts (with central holes) and the second group of parts (with central protrusions). By inserting the axis into the central axial clearance formed by the second group parts and into the central holes of the first group parts, rigid fixation is achieved without glue or additional fixation elements.
2Productivity
If conventional connection methods are used, then assembly can be completed without additional fixation elements, but assembly is not convenient and quick
Solution Approach 1:
The parts of the second group are pre-grouped to form a central axial clearance before axis insertion. This preliminary action simplifies the assembly process by having the clearance ready to receive the axis, making assembly both quicker and more convenient without requiring additional fixation elements.
Solution Approach 2:
The design allows the parts themselves to create the necessary clearance and alignment features through their geometric configuration. The central protrusions of the second group parts automatically form the central axial clearance when pre-grouped, and the axis self-aligns when inserted, eliminating the need for complex assembly operations or additional tools.
3Reliability
If parts are connected by inserting into connecting holes, then assembly can be done without glue, but the unit lacks sufficient rigidity
Solution Approach 1:
The axis serves multiple functions simultaneously: it connects the first group of parts (by inserting into their central holes) and the second group of parts (by inserting into the central axial clearance formed by their central protrusions). This multi-functional element achieves rigid fixation without increasing device complexity or requiring additional fixation elements.
Solution Approach 2:
The second group parts are pre-grouped to form the central axial clearance before axis insertion. This preliminary arrangement simplifies the overall connection structure by having the clearance ready to receive the axis, achieving rigid fixation without complex assembly steps or additional components.
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 the assembly of mechanical models to be completed more conveniently and quickly while ensuring the unit is rigidly fixed without the need for glue or other additional fixation elements, enhancing the assembly process and structural integrity.
Implementation Method 1
The separate parts of the second group are pre-grouped and form a central axial clearance between the central protrusions of these separate parts of the second group. During connecting the parts of the first and second groups, the protrusions, disposed on one side at the edges of separate parts of the second group, are inserted into no less than two rectangular connecting holes of one of the separate parts of the first group, and other protrusions, which are disposed from the other side at the edges of separate parts of the second group, are inserted into no less than two rectangular connecting holes of the other separate part of the first group. The axis is inserted into a central hole of one of the separate parts of the first group and into a central axial clearance formed between the central protrusions of the separate parts of the second group, as well as into a central hole of the other separate part of the first group.
Data Source
AI summary
The invention relates to producing kits for games and souvenirs. The invention consists in a node for connecting moving elements thereof in order to perform a connecting action using two groups of components. A first group of components and a second group of components are connected by means of inserting protrusions, which are positioned along opposing edges of at least two individual components of the second group, in at least two rectangular connecting apertures of one of the individual components of the first group, and which are disposed symmetrically relative to a central aperture on each of the individual components of the first group. The second group of components contains at least two individual components which are made in the form of symmetrical pairs. The result consists in the fastest and most-reliable assembly of the node.