Vehicle Door Window Glass Assembly to Prevent Guide Rail Grease Staining
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Solution Overview
Problem
The challenge of window glass staining due to grease adherence during assembly into a window regulator is addressed by providing a door structure with a sash that guides the window glass, ensuring it does not come into contact with the guide rail, thereby preventing grease from adhering to the glass surface.
Innovation Solution
The door structure incorporates a sash with a groove to guide one edge of the window glass, and a separating member at the guide rail's upper end to prevent contact with the sliding face, ensuring the glass is separated from the grease-coated surface during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the window glass is fitted only to the front sash without being fitted to the rear sash to move the window glass downward, then the window glass can be mounted to the window regulator, but the window glass may swing around the vertical axis with the sash as a fulcrum during the operation and come into contact with the guide rail, causing grease to be adhered onto the surface of the window glass
Solution Approach 1:
A separating member is introduced as an intermediary element between the window glass and the guide rail. This separating member prevents direct contact between the window glass and the grease-coated guide rail surface, thereby eliminating the harmful effect of grease adhesion while allowing the window glass to be mounted using only the front sash
Solution Approach 2:
The guiding function is segmented between two distinct components: the sash provides vertical guidance for the window glass, while the separating member provides lateral separation to prevent contact with the guide rail. This segmentation allows each component to perform its specific function without interfering with the other
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 approach effectively suppresses grease adherence on the window glass, improving assembly efficiency and reducing the need for cleaning, thereby enhancing the operational cleanliness and ease of assembly.
Implementation Method 1
at least a portion of the carrier plate slides on a sliding face of the guide rail
Implementation Method 2
Grease is applied onto the guide rail to increase the slidability of the carrier plate
Implementation Method 3
a separating member configured to separate the window glass from the sliding face of the guide rail by inhibiting approaching of the window glass to the sliding face
Data Source
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AI summary
To provide a door structure of a vehicle, which door structure makes it possible to suppress staining of a window glass with grease when of assembling the window glass into a window regulator. A door structure 1 comprises a door body 2; a window glass 3 having a substantially rectangular shape; and a window regulator 4, wherein grease G is applied onto a sliding face SL of a guide rail 42 of the window regulator 4, the door body 2 has a sash 22 being provided to the door body 2 before the window glass 3 is connected to the carrier plate at one side of the door body 2 in a front and rear direction D1 of the vehicle, and the sash 22 has a groove 221, in which only one edge 3a of the window glass 3 is inserted, and the door structure 1 further comprises a separating member 5 being configured to separate the window glass 3 from the sliding face SL of the guide rail 42 by inhibiting approaching of the window glass 3 to the sliding face SL at an upper end part of the guide rail 42 such that the window glass 3 does not come into contact with the sliding face SL of the guide rail 42 when the window glass 3 swings with the one edge being guided to the sash as a fulcrum.