Vehicle Window Guide Rail Eccentric Lever Adjustment Mechanism
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Solution Overview
Problem
Existing devices for adjusting and locking the position of guide rails in vehicle doors require significant space and material due to the integral nature of the eccentric lever, which limits their efficiency and increases weight.
Innovation Solution
A device where the mounting plate with the engaging element has a slot in the adjusting direction, allowing the eccentric lever to be configured as a separate tool, with at least one mounting means acting as a pivot point, enabling the use of a tubular tool with an eccentric lever for adjustment and locking, reducing material and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the eccentric lever is made as an integral component of the screw connection, then the adjustment and locking function is achieved, but the weight, material usage, and space requirements increase significantly
Solution Approach 1:
The patent divides the mounting assembly into separate components: the screw connection (with mounting means) and the eccentric lever (as a separate adjusting tool). This segmentation allows the eccentric lever to be removed after adjustment, reducing the permanent weight and material requirements of the installed assembly while maintaining the adjustment and locking functions during the adjustment process.
Solution Approach 2:
The eccentric lever is extracted from the integral screw connection and made into a separate, removable tool. This extraction eliminates the need for the eccentric lever to remain permanently installed, thereby reducing the weight and material usage of the stationary mounting assembly while preserving its adjustment capability during installation.
2Reliability
If the eccentric lever is made as an integral component, then the adjustment mechanism works reliably, but the space required for the component is significantly increased
Solution Approach 1:
By segmenting the eccentric lever as a separate tool from the screw connection, the patent reduces the space required by the permanent mounting assembly. The eccentric lever only occupies space temporarily during the adjustment process, not as a permanent fixture, thereby reducing the overall area occupied by the mounting system.
Solution Approach 2:
The eccentric lever is extracted and made removable, allowing the mounting assembly to occupy minimal space once installed. The separate tool can be stored elsewhere after use, eliminating the need for dedicated space within the mounting structure for housing an integral eccentric lever.
3Ease of operation
If the slot for the eccentric lever extends vertically (perpendicularly to adjusting direction), then the eccentric lever can be engaged, but the design requires more material and complexity
Solution Approach 1:
Instead of having the slot extend vertically (perpendicularly to the adjusting direction), the patent inverts the approach by having the slot extend in the adjusting direction (horizontally). This inversion simplifies the mounting plate design and reduces material requirements, as the slot now aligns with the direction of adjustment rather than requiring a perpendicular orientation.
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 allows for efficient adjustment and locking of guide rails with reduced weight, material, and space usage, using simple screws and nuts, and enables easy operation with a separate tool, suitable for frameless window panes.
Implementation Method 1
at least one of the mounting means is configured as a pivot point for the eccentric lever, so that the eccentric lever can be configured as part of a separate or external tool
Implementation Method 2
given a rotary movement of the eccentric lever, the rail-side mounting plate is moved translationally and is displaced relative to the mounting plate mounted on the door side
Implementation Method 3
the mounting plate which comprises the engaging element for the eccentric lever itself has a slot which extends in the adjusting direction (preferably the Y-direction or transverse direction) and serves as a guide for the mutual displacement of the mounting plates
Implementation Method 4
one of the mounting plates comprises an engaging element which comprises, for example, a vertical slot for an eccentric lever
Implementation Method 5
The adjustment is undertaken with the screw connection slightly loosened, so that the Y position of the mounting plate (section 9 in FIG. 3) on the rail side is adjusted by rotating the eccentric lever
Data Source
AI summary
The invention relates to the adjusting and locking of the position of a guide rail for a movable window pane in a vehicle door. A device, a vehicle door equipped therewith and a tool provided for the adjusting and locking are disclosed. In the vehicle door, a first mounting plate mounted on the rail side and a second mounting plate mounted on the door side are provided, which are connected to one another by screw-fastenable mounting means. One of the mounting plates comprises an engaging element for an eccentric lever, which on rotation brings about a mutual translational displacement of the mounting plates in an adjusting (Y) direction.