Hembar Finial Slot Structure for Removable Guide Cables
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Solution Overview
Problem
Existing window shading systems require guide cables to be threaded through eyelets on hembar finials, making initial installation and replacement cumbersome, and necessitate detaching cables to uninstall the shade, which can be difficult and invasive.
Innovation Solution
The system employs angled and curved slots on finials that allow guide cables to be inserted and concealed within internal channels, enabling easy attachment and detachment without threading through eyelets, and includes bearings to reduce friction and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide cables are threaded through eyelets on finials, then the guide cables can restrict hembar movement, but the installation and removal of guide cables becomes cumbersome and invasive
Solution Approach 1:
The finial is divided into a body portion and a cap portion that can be separated. The cap can be removed to access the internal channel for guide cable installation, and reattached to conceal the cable. This segmentation allows easy cable installation while maintaining the external appearance and movement restriction function.
Solution Approach 2:
The guide cable is nested within the internal channel of the finial body. The cap covers the opening to conceal the cable while allowing it to remain accessible for installation and removal. This nesting approach protects the cable and simplifies installation without compromising the hembar movement restriction.
2Strength
If guide cables are threaded through eyelets, then the attachment is secure, but the detachment requires invasive access to ceiling or crawl spaces
Solution Approach 1:
The finial's separable cap design allows the guide cable to be accessed and detached from the finial itself, eliminating the need to access ceiling or crawl spaces. The cap can be removed to release the cable while maintaining secure attachment during normal operation.
Solution Approach 2:
The finial acts as an intermediary device between the guide cable and the hembar. The cable attaches to the finial body through the internal channel, and the cap provides easy access for installation and removal without requiring invasive access to building structures.
3Device complexity
If eyelets are used for guide cable attachment, then the structure is simple, but the guide cables are exposed and vulnerable to damage
Solution Approach 1:
The guide cable is nested within the internal channel of the finial body and covered by the cap. This provides protection for the cable while maintaining a simple overall structure. The cable is concealed and protected from external damage while remaining functional.
Solution Approach 2:
The cap acts as a protective shell that covers and protects the guide cable. It can be removed for installation/maintenance and reattached to provide ongoing protection, maintaining structural simplicity while reducing cable vulnerability.
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
This design simplifies the installation and removal of guide cables, reduces unwanted hembar movement, and provides protection for the cables, while maintaining system stability and ease of use across various mounting angles.
Implementation Method 1
The finial includes an internal channel configured to receive the guide cable, wherein the guide cable is configured to translate within the internal channel
Data Source
AI summary
The system includes a finial that is configured to be removed from a guide cable, while the guide cable is still connected on both ends. The hembar includes a finial on each end, wherein the first finial includes an external channel at an angle and the second finial includes an external channel with an opposite angle. The hembar is rotated in order to receive the guide cable into the external channel, then reverse rotated so the guide cable translates in an internal channel. The system eliminates or reduces the need for a guide cable to be threaded through an eyelet on the finial of the hembar. The system eliminates or reduces the need to detach a cable, prior to uninstalling the shade system.