Expandable corner connector for frames and modular structures
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Solution Overview
Problem
Existing frame assembly methods require permanent fastening solutions that damage the frame, are cumbersome to assemble and disassemble, and lack a balance of strength, ease of use, and aesthetic appeal, while also complicating storage and transportation.
Innovation Solution
An expandable corner connector with a durable and flexible body that secures frame bars using a central channel and screw, allowing for quick assembly and disassembly without tools, maintaining structural integrity and appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional permanent fastening methods (nails, screws, adhesives) are used to join frame corners, then structural strength and stability are improved, but the frame components are damaged and cannot be reused, and aesthetic appearance is compromised
Solution Approach 1:
The connector is divided into separate components: a connector body with notches for receiving frame members, and an expansion mechanism activated by a screw. This segmentation allows the frame members to be inserted without permanent modification, while the connector itself provides the fastening function through its expandable structure.
Solution Approach 2:
The connector body is designed to be expandable through a central channel that receives a screw. When the screw is tightened, it causes the connector body to expand outward, creating frictional engagement with the frame members. This dynamic expansion allows the connector to adapt to slight variations in frame member dimensions while maintaining a strong grip.
2Manufacturing precision
If traditional assembly methods requiring precise alignment are used, then corner accuracy and aesthetic appearance are improved, but assembly time and labor skill requirements increase
Solution Approach 1:
The connector body is pre-formed with notches that are positioned and sized to receive standard frame members. This preliminary preparation of the connector allows frame members to be inserted without requiring precise alignment during assembly, as the notches guide and accommodate the members automatically.
Solution Approach 2:
The expansion mechanism of the connector automatically adjusts to secure the frame members in place. When the screw is tightened, the connector body expands and self-adjusts to create optimal frictional engagement with the inserted frame members, eliminating the need for skilled alignment work.
3Stability of the object's composition
If frames are pre-assembled for storage and transportation, then structural integrity is maintained, but storage space increases and risk of damage during transport rises
Solution Approach 1:
The frame system is designed to be segmented into separate members that can be easily disconnected at the corners using the reversible connector. This allows frames to be disassembled into compact components for storage and transportation, reducing the volume occupied while maintaining structural integrity when reassembled.
Solution Approach 2:
The connector allows for easy disassembly and reassembly of frame members. Frame members can be disconnected, stored separately in compact spaces, and then recovered and reassembled when needed, providing both space efficiency during storage and structural integrity during use.
4Adaptability or versatility
If reusable mechanical fasteners are used instead of permanent methods, then component reusability is improved, but connection strength and reliability may be compromised
Solution Approach 1:
The connector body is designed to be expandable through a central channel that receives a screw. When the screw is tightened, it causes the connector body to expand outward, creating frictional engagement with the frame members. This dynamic expansion allows the connector to adapt to slight variations in frame member dimensions while maintaining a strong grip.
Solution Approach 2:
The connector utilizes changes in physical parameters - specifically the expansion of the connector body material in response to screw tightening. This parameter change transforms the connector from a loose fit to a tight frictional engagement, ensuring reliable connection while maintaining reversibility.
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
Facilitates easy, reusable, and robust frame assembly with a clean finish, enabling compact storage and transport, and reducing material waste.
Implementation Method 1
Upon insertion and tightening of the screw within the central channel, the body expands outward against the frame bars to secure the connection between the frame bars
Data Source
AI summary
The present disclosure relates to a corner connector for frames and modular structures, designed for seamless and reversible frame assembly. The corner connector comprises an expandable body and a central channel to house a screw. Upon screw tightening, the connector expands against the frame bars to ensure a secure corner joint. The corner connector is made from materials such as plastics, metals, and composites, for durability and flexibility for repeated use. Internally threaded, the central channel pairs with a complementary threaded screw, facilitating a strong interlock with frame bars that feature mating semi-circular notches. The body's textured exterior enhances grip, ensuring a stable, aesthetic finish.