Adjustable Shade Clamp for Non-Piercing Cross-Member Attachment
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Solution Overview
Problem
Existing systems for connecting pulleys to cross-members in retractable roman shades cause damage to the fabric and reduce structural integrity, are limited to factory production, and fail to handle transverse forces effectively.
Innovation Solution
An adjustable clamp with articulated arms and a recess for receiving a connector, allowing for removable and adjustable attachment of pulleys without piercing the fabric, enabling DIY assembly and handling transverse forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rivets or 2-piece metal clamps are used to connect pulleys to cross-members, then the connection is strong and stable, but the fabric is damaged causing holes and tears
Solution Approach 1:
The patent introduces a single-piece metal clamp as an intermediary device that connects the pulley to the cross-member without directly piercing the fabric. The clamp encircles the cross-member and secures the pulley through clamping force rather than penetration, thus mediating between the need for strong connection and the need to protect fabric integrity
Solution Approach 2:
The invention changes the connection parameter from permanent penetration (rivets) to removable clamping force. The single-piece clamp can be adjusted and removed without inflicting damage, transforming the connection method from destructive to non-destructive while maintaining structural integrity
2Strength
If rivets are used to attach cross-members to fabric, then the attachment is permanent and strong, but the location cannot be altered and further damage is inflicted
Solution Approach 1:
The patent transforms the static, permanent rivet attachment into a dynamic, adjustable clamping system. The single-piece clamp can be moved to different positions along the cross-member and easily repositioned as needed, providing adaptability while maintaining secure attachment through clamping force
3Adaptability or versatility
If 2-piece metal clamps with tightened screws are used, then the connection is adjustable and removable, but the structure is more complex and assembly is more difficult
Solution Approach 1:
The patent merges the two separate pieces of the traditional clamp into a single integrated piece. The single-piece clamp combines the functions of both clamp halves and the fastening mechanism into one component, reducing structural complexity while maintaining adjustability and removability features
4Reliability
If traditional clamping systems are used, then the connection is secure, but the system is limited to factory production and not suitable for DIY assembly
Solution Approach 1:
The patent segments the roman shade system into modular components that can be easily assembled by DIY enthusiasts. The single-piece clamp is designed as a standalone component that works with standard cross-members and pulleys, allowing flexible assembly without requiring specialized factory production processes
Data Source
AI summary
The invention relates to a clamp for removably retaining a cross-member of a retractable shade, the clamp having a clamp body comprising at least one curved arm, and at least one opposing curved arm which is articulated relative to the clamp body, and a recess for releasably retaining a connector, and an adjuster for applying clamping force between the at least one curved arm and the at least one opposing curved to clamp the cross member and anchor the connector to the cross member.