Construction System with Telescopic Fastener and Locking Member
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Solution Overview
Problem
Existing construction systems for toys and hobby crafts, such as Erector and LEGO kits, limit the number of objects that can be created, restrict angular orientations, and lack rotational freedom and mechanical functionality, causing structures to fall apart under moderate force.
Innovation Solution
A construction system featuring elements with passageways and orientation grooves, a resilient fastener body with a tongue to prevent rotation, and a locking member that allows telescopic reception and impedes removal, enabling secure angular positioning and rotation of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If construction elements are joined with fixed-angle connectors (like LEGO), then assembly is simple and reproducible, but rotational freedom and angular versatility are restricted
Solution Approach 1:
The connector system transitions from fixed-angle to dynamic multi-angle positioning. The set screw mechanism allows the connector to be locked at various angular positions along the cylindrical interface, enabling both simple assembly (by tightening the screw) and versatile angular orientation (by positioning at different angles before locking).
Solution Approach 2:
The connector is divided into functional segments: a cylindrical interface for angular positioning, a set screw for locking, and a modular body that can accommodate different construction elements. This segmentation allows independent optimization of each function while maintaining overall versatility.
2Strength
If construction elements are joined with rigid fasteners, then structural strength is high, but the structure becomes brittle and falls apart under moderate force
Solution Approach 1:
The connector uses material and geometric parameter changes to achieve both strength and reliability. The cylindrical interface provides a large contact area for stress distribution, while the set screw creates a controlled clamping force that secures the joint without creating stress concentration points that would lead to brittle failure.
3Adaptability or versatility
If construction elements allow free rotation, then rotational freedom is achieved, but precise angular positioning and orientation are lost
Solution Approach 1:
The connector allows preliminary rotation and positioning of construction elements before final locking. The user can adjust the angular orientation during assembly, then secure the precise position using the set screw mechanism, combining rotational freedom with positioning precision.
4Device complexity
If construction kits provide limited components, then kit complexity and cost are reduced, but the number of creatable objects is limited
Solution Approach 1:
The connector is designed as a universal interface that can join various construction elements (beams, plates, connectors) in multiple configurations. The cylindrical interface with set screw accommodation works with different element types and orientations, allowing a limited component set to create numerous objects through varied combinations and arrangements.
Data Source
AI summary
A construction system is described and which includes a construction element having at least one passageway extending therethrough; a fastener body telescopingly received in the passageway; and a locking member cooperating with the fastener body and which, in a first position, allows the fastener body to be received in the passageway, and in a second position, substantially impedes the removal of the fastener body from the passageway.