Sliding Glazing Guide Thinned Base for Flush Sealing
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Solution Overview
Problem
Current sliding glazing guides in automobiles result in a clearance between the guide and the glazing surface, leading to air leakage and an oversized sliding joint due to a significant 'step' caused by the thickness of the guide, which prevents a perfect seal.
Innovation Solution
A guide with a thinned portion at its free longitudinal end, where the thickness decreases to ensure flush contact with the glazing surface, allowing the sliding joint's lip to cooperate directly with the guide's base rather than its leg, reducing the 'step' and enhancing compactness and sealing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the guide has a significant thickness to provide structural strength, then the guide can maintain its rigidity and stability, but a clearance is created between the guide and glazing surface resulting in air leakage and imperfect sealing
Solution Approach 1:
The guide base features a thinned portion at its free longitudinal end where the thickness decreases to create a flush contact surface with the glazing. This local modification allows the sealing lip to maintain continuous contact with the glazing surface throughout the sliding motion, eliminating air leakage paths while the rest of the guide base maintains sufficient thickness for structural strength.
2Stability of the object's composition
If the guide has a significant thickness to ensure structural stability, then the guide can support the glazing weight, but the sliding joint must be oversized to accommodate the guide thickness and maintain sealing
Solution Approach 1:
The guide base is designed with a thinned portion at the free longitudinal end, creating a localized reduction in thickness only where needed for sealing contact. This allows the sliding joint to be more compact overall while the main body of the guide base retains sufficient thickness for structural stability and load-bearing capacity.
3Reliability
If the guide base thickness is reduced to minimize the step and improve sealing, then the sealing performance improves, but the guide may lose structural strength
Solution Approach 1:
The guide base features a thinned portion specifically at the free longitudinal end where sealing contact is required, while the main body of the base maintains sufficient thickness for structural strength. This localized thickness variation optimizes both sealing performance and structural integrity simultaneously.
Solution Approach 2:
The guide base transitions from a uniform thickness design to a variable thickness design along its longitudinal axis. The thinned portion creates a dimensional variation that allows the sealing surface to be flush with the glazing while the upstream portion maintains adequate thickness for strength, effectively solving the contradiction through geometric dimensioning.
Data Source
AI summary
The guide for sliding glazing intended to be added and fastened onto a glazing and to cooperate with a sliding joint. The guide comprising a body of elongated shape and a longitudinal base extending along the axis of elongation of the body. A first face of the guide applied and fastened onto a glazing surface and a second face opposite the first face, the second face cooperating by sliding with said joint. The longitudinal base including a thinned portion at at least one free longitudinal end. A thickness of the thinned portion, in a direction substantially perpendicular to said first face, decreasing at least in the longitudinal direction in such a way that said second face is flush with said glazing surface on said at least one free end.