L-Shaped Light-Blocking Side Valance for Window Gaps
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Solution Overview
Problem
Existing window treatments suffer from gaps between the treatment and the window frame, allowing unwanted light to pass through and compromising aesthetics, as current solutions are not versatile enough to work with various types of window treatments without requiring reconfiguration or being aesthetically pleasing.
Innovation Solution
A light-blocking side valance or trim piece with an L-shaped configuration, featuring a mounting face and a retaining face with frangible width and length adjustment notches, allowing for adjustable installation to fit any window treatment, blocking light and maintaining the treatment's distance from the window while accommodating different sizes and styles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mounting brackets are secured at the top of the window opening and protrude out into the opening, then the window treatment can be mounted and function properly, but edge gaps are created through which unwanted light can pass
Solution Approach 1:
The patent introduces a side valance trim piece as an intermediary element between the window treatment and the window opening. This trim piece fills the edge gaps created by mounting brackets while allowing the window treatment to operate independently. The trim piece acts as a mediator that blocks light leakage without interfering with the functional operation of the window treatment.
2Ease of operation
If the window treatment is made narrower to fit within mounting brackets, then the treatment can be installed and function, but the gap at either side increases allowing more light to pass through
Solution Approach 1:
The patent divides the solution into separate functional components: the window treatment itself and the side valance trim pieces. This segmentation allows the window treatment to be optimized for its primary function (blocking light and providing privacy) while the trim pieces specifically address the light leakage issue at the edges. The trim pieces are separate elements that can be installed independently to fill gaps without affecting the window treatment's dimensions or operation.
3Reliability
If complex or large actuators are included in the window treatment, then the treatment can operate effectively, but more space is required resulting in larger edge gaps
Solution Approach 1:
The side valance trim piece serves as an intermediary that specifically addresses light leakage without interfering with the operation of actuators. The trim piece is designed to fill edge gaps while allowing sufficient space for turning rods, cords, and other actuator components to function properly. It mediates between the space requirements of complex actuators and the need to minimize light leakage.
4Adaptability or versatility
If a filler device is used to reduce the window opening width, then certain blinds can be accommodated, but the filler member is completely visible and the blind must ride behind it
Solution Approach 1:
Instead of having the blind ride behind a visible filler member as in prior art, this patent inverts the arrangement by having the side valance trim piece positioned at the edges of the window opening with the blind riding in front of it. This inversion makes the trim piece the visible aesthetic element rather than the blind interaction with a filler, creating a cleaner appearance where the trim piece conceals the gap rather than the blind having to interact with a visible filler structure.
5Object-affected harmful factors
If the blind rides behind the filler member to reduce gap, then the gap is reduced, but the blind will have a tendency to sway back toward the window causing light to pass through
Solution Approach 1:
The side valance trim piece acts as a stable intermediary structure that prevents blind sway without requiring the blind to ride behind a filler member. The trim piece is firmly installed at the window opening edges and provides a stable reference structure that maintains the blind's position. This mediator structure eliminates the instability and sway issues that occur when the blind must ride behind a filler member to reduce gaps.
Data Source
AI summary
A method of preventing light from passing through a gap between a window frame and a window treatment disposed in the window frame, the window frame having a window opening and vertical sides includes the steps of providing an L-shaped light-blocking device with a mounting face, a retaining face extending substantially perpendicular to the mounting face, and at least one frangible width adjustment notch disposed lengthwise along the retaining face, and attaching the mounting face to one of the vertical sides of the window frame to have the retaining face extend from the vertical side between the window treatment and the window opening and block at least some light passing between the window frame and the window treatment.