Window Opening Control Packing Clips for Neutral Toggle Protection
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Solution Overview
Problem
Existing window opening control devices are prone to damage during assembly, shipping, or installation due to inadequate protection methods, which can lead to improper seating of sashes and damage to the finish of the sashes.
Innovation Solution
A window opening control device assembly that includes a housing with a toggle, a packing clip, and a biasing apparatus, where the packing clip engages with the toggle to maintain a neutral configuration, preventing damage by exerting compressive forces and retaining the toggle in a stable position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tape is placed over the window opening control devices to prevent damage, then the devices are protected from damage, but the finish of the sashes may be damaged by the adhesive
Solution Approach 1:
The packing clip serves as an intermediary protective element between the window opening control device and the external environment. Instead of applying adhesive tape directly to the sash surface, the packing clip mechanically engages with the toggle to provide protection without contacting the sash finish, thus eliminating the harmful adhesive effect while maintaining protection.
Solution Approach 2:
The packing clip is designed as a temporary protective component that is discarded after installation. It provides short-term protection during assembly, shipping, and installation processes, then is removed and discarded, avoiding any long-term impact on the sash finish while effectively protecting the control device during vulnerable periods.
2Reliability
If packaging material is used to prevent the upper sash from fully seating to protect window opening control devices, then the devices are protected from damage, but the upper sash may not properly seat in the side liner tracks
Solution Approach 1:
The packing clip is installed on the window opening control device before the sash assembly process. This preliminary action protects the control device during subsequent assembly operations without requiring any modifications to the sash seating process. The protective action is performed in advance, allowing the sash to be properly installed without interference.
Solution Approach 2:
The packing clip acts as an intermediary protective element that does not interfere with the normal sash seating process. Unlike packaging material that physically blocks sash movement, the packing clip provides protection through mechanical engagement with the toggle, allowing the sash to seat properly in the liner tracks while still protecting the control device.
3Ease of operation
If the toggle is left in an extended configuration during assembly and shipping, then the window opening control device can function properly, but the sash or control device may be damaged
Solution Approach 1:
The packing clip is installed in advance to protect the toggle in its retracted position during assembly and shipping. This preliminary protective action allows the toggle to be in a safe configuration during vulnerable periods, then removed before final installation so the toggle can be extended for proper functionality.
Solution Approach 2:
The packing clip provides beforehand protection by mechanically constraining the toggle in a retracted position during assembly and shipping. This prior cushioning prevents damage that could occur if the toggle were extended during these vulnerable periods, while allowing the toggle to be extended for normal operation after installation.
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
Prevents damage to the window opening control devices and sashes during assembly, shipping, or installation, ensuring proper seating of sashes and maintaining the integrity of the window assembly.
Implementation Method 1
biasing apparatus operably attached to the toggle, wherein the biasing apparatus is configured to force the toggle to the extended configuration when the packing clip is not engaged with the toggle
Implementation Method 2
the clamp of the packing clip is engaged with the second end of the toggle and the baseplate of the packing clip is proximate the faceplate such that the toggle is retained in a neutral configuration
Data Source
AI summary
Window opening control device assemblies including packing clips, fenestration units including the window opening control device assemblies, and related methods are described herein. A packing clip holds the toggle of the window opening control device in a neutral configuration such that the window opening control device and/or the sash are not damaged during the assembly process, shipping, or installation of fenestration units using the window opening control device assemblies.