Reinforcing Connector for Shade Screen Fabric Tension
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Solution Overview
Problem
Conventional shade screens face issues with breakage due to excessive tension, where the screen fabric is subjected to stress concentration at the connection points with metallic tightening wires, leading to a shortened lifespan.
Innovation Solution
A reinforcing connector system that securely attaches the screen fabric's corner portion to a receiving cavity and supports the tightening wire through aligned grooves and slots, preventing stress concentration and eliminating the need for a separate reinforcing fabric piece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the tightening wire is tightened to adequately stretch the screen fabric for proper shading, then the shading function is improved, but the screen fabric is subject to considerable tension that may cause breakage
Solution Approach 1:
The reinforcing connector acts as an intermediary component between the tightening wire and the screen fabric. It distributes the tension force from the tightening wire across a larger area of the fabric through its extended structure, preventing stress concentration at any single point while maintaining the necessary tension for proper shading.
Solution Approach 2:
The reinforcing connector provides localized reinforcement at the corner portions of the screen fabric where the tightening wire applies force. By concentrating structural support at these critical stress points, the connector enables the fabric to withstand high tension without breaking, while the rest of the fabric maintains its shading properties.
2Duration of action of stationary object
If the tightening wire is tightened for extended use, then the durability is improved, but the fabric portion in contact with the tightening wire breaks due to considerable force
Solution Approach 1:
The reinforcing connector serves as a protective intermediary between the tightening wire and the fabric. It absorbs and distributes the mechanical stress, preventing the tightening wire from directly concentrating force on the fabric. This mediation allows for extended tightening without causing fabric breakage, thereby extending the product lifespan.
Solution Approach 2:
The reinforcing connector provides pre-established structural support and stress distribution capability before the fabric is subjected to repeated tightening cycles. This prior reinforcement cushions the fabric against the damaging effects of continuous tension, preventing premature failure during extended use.
3Strength
If a reinforcing fabric piece is added to strengthen the corner portion, then the connection strength is improved, but the device complexity increases
Solution Approach 1:
The reinforcing connector combines multiple functions into a single component: it reinforces the corner fabric, distributes tension from the tightening wire, and provides a secure attachment point. This integration eliminates the need for separate reinforcing fabric pieces and other additional components, simplifying the overall structure while maintaining strength.
Solution Approach 2:
The reinforcing connector is designed as a multi-functional element that simultaneously provides structural reinforcement, stress distribution, and mechanical attachment capabilities. This universal component replaces what would otherwise require multiple separate elements (reinforcing fabric, additional fasteners, etc.), reducing device complexity.
Data Source
AI summary
A shade screen includes a screen fabric, a tightening wire and a reinforcing connector. The reinforcing connector includes a head connecting member and a reinforcing body. The head connecting member has a through connecting slot and a peripheral securing slot. The reinforcing body has a receiving cavity, a first reinforcing groove and a second reinforcing groove formed on two sides of the receiving cavity respectively. The first reinforcing groove and the second reinforcing groove are aligned with two ends of the peripheral securing slot in such a manner that a corner portion of the screen fabric is securely attached in the receiving cavity, while the tightening portion of the tightening wire is arranged to pass through the first reinforcing groove and the second reinforcing groove and fittedly receive in the peripheral securing slot.