Window Lifter Fixture With Torque Adjustment for Door Sealing
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Solution Overview
Problem
Existing window lifter assemblies in vehicle doors require complex and costly adjustments to ensure precise positioning for reliable sealing, particularly in frameless doors, leading to increased production and maintenance expenses, and potential noise and vibration issues.
Innovation Solution
A fixture for mounting a window lifter assembly with adjustable mounting positions and a tool interface that allows for torque-induced shifting without disassembly, enabling precise adjustment relative to the vehicle door and reducing the need for direct access during assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the window lifter assembly is made adjustable during assembly or maintenance to ensure reliable sealing, then the sealing reliability is improved, but the device complexity and production cost increase
Solution Approach 1:
The mounting portion is designed with a longitudinal slot that allows the window lifter assembly to be positioned at multiple locations along the slot length. This dynamic positioning capability enables adjustment of the window lifter assembly relative to the door module carrier, ensuring proper sealing without requiring complex adjustable mechanisms throughout the entire door structure.
Solution Approach 2:
The adjustment functionality is segmented into a specific mounting portion with a longitudinal slot, separating the adjustment mechanism from the rest of the door structure. This localized segmentation allows adjustability where needed while keeping the overall door structure simple and cost-effective.
2Reliability
If the window lifter assembly is made adjustable during assembly or maintenance to ensure reliable sealing, then the sealing reliability is improved, but the production cost increases
Solution Approach 1:
The mounting portion is designed with a longitudinal slot that allows the window lifter assembly to be positioned at multiple locations along the slot length. This dynamic positioning capability enables adjustment of the window lifter assembly relative to the door module carrier, ensuring proper sealing without requiring complex adjustable mechanisms throughout the entire door structure.
Solution Approach 2:
The adjustment functionality is segmented into a specific mounting portion with a longitudinal slot, separating the adjustment mechanism from the rest of the door structure. This localized segmentation allows adjustability where needed while keeping the overall door structure simple and cost-effective.
3Manufacturing precision
If the window lifter assembly requires proportional disassembly for subsequent adjustment, then the adjustment precision can be achieved, but the maintenance time and complexity increase
Solution Approach 1:
The mounting portion is designed with a longitudinal slot that allows the window lifter assembly to be positioned at multiple locations along the slot length. This dynamic positioning capability enables adjustment of the window lifter assembly relative to the door module carrier, ensuring proper sealing without requiring complex adjustable mechanisms throughout the entire door structure.
Solution Approach 2:
The mounting portion is pre-designed with a longitudinal slot and opening that provide built-in adjustment functionality. This preliminary design allows maintenance personnel to adjust the window lifter assembly by simply loosening fastening elements and sliding the assembly along the slot, without requiring proportional disassembly of the door.
4Ease of operation
If direct access to the fixture is required for adjustment, then the adjustment can be performed, but the mounting expenditure and maintenance expenditure increase
Solution Approach 1:
The mounting portion is designed with a longitudinal slot that allows the window lifter assembly to be positioned at multiple locations along the slot length. This dynamic positioning capability enables adjustment of the window lifter assembly relative to the door module carrier, ensuring proper sealing without requiring complex adjustable mechanisms throughout the entire door structure.
Solution Approach 2:
The mounting portion serves multiple functions: it provides structural support for the window lifter assembly, enables positional adjustment through the longitudinal slot, and allows tool access through the opening. This multi-functionality reduces the need for separate adjustment mechanisms and direct access requirements, lowering mounting and maintenance costs.
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
The fixture facilitates easy and cost-effective adjustment of window lifter assemblies, improving sealing and reducing noise and vibration, while allowing for modular integration across various vehicle types and simplifying the assembly process.
Implementation Method 1
a torque introduced into the connected tool. The adjusting force is introduced into a window lifter assembly properly connected to the fixture, so that the window lifter assembly can thereby be shifted between various mounting positions
Data Source
AI summary
It is provided a fixture for mounting a window lifter assembly in a vehicle door, wherein the fixture can be mounted in a vehicle door and at least includes at least one mounting portion, via which the window lifter assembly can be mounted on the fixture in a plurality of mounting positions, and at least one tool interface, via which a tool adapted for connection can reversibly be connected to the fixture, wherein the window lifter assembly properly mounted on the fixture can be shifted from one of the mounting positions into another one of the mounting positions by a torque introduced into the connected tool. adjusting