Vehicle Door Module Pulley Support Impact Attenuation
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Solution Overview
Problem
The vehicle door module experiences wear on its base when the window glass is stopped at the top or bottom dead center due to impact forces applied to the pulley, leading to deformation and accelerated wear.
Innovation Solution
A vehicle door module design that includes a support portion for the pulley, which is supported by the edge of the inner panel's opening, dispersing the impact force and reducing wear on the base, along with a resin base for increased strength and a guide groove for cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the window regulator is coupled to the base, then manufacturing efficiency is improved through integral modularization, but the base deforms and wears faster due to impact forces when the window glass stops at dead centers
Solution Approach 1:
The patent introduces a support portion as an intermediary component between the base and the pulley. This support portion absorbs and distributes the impact forces generated when the window glass stops at dead centers, preventing direct transmission of these forces to the base. The support portion acts as a mediator that protects the base from deformation and accelerated wear while maintaining the integral modularized structure for manufacturing efficiency.
2Device complexity
If the pulley is directly supported by the base, then the structure is simplified, but impact forces cause base deformation and accelerated wear
Solution Approach 1:
The patent applies local quality by adding the support portion specifically at the location where the pulley interfaces with the base. This localized addition provides enhanced structural support and impact absorption precisely where needed, without requiring a complete redesign of the entire base structure. The support portion reinforces the critical area承受ing impact forces while maintaining the overall simplicity of the base design.
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 support portion effectively attenuates impact forces, limiting wear on the base and improving the structural integrity of the vehicle door module, while the guide groove simplifies cable installation and reduces water ingress.
Implementation Method 1
The support portion effectively attenuates impact forces, limiting wear on the base
Data Source
AI summary
A vehicle door module includes a base attached to an opening of an inner panel; a window glass lifting-lowering device attached to the base, the window glass lifting-lowering device provided with a window glass cable for pulling a window glass, a window glass drum for winding the window glass cable, a window glass lifting-lowering motor for rotating the window glass drum, and at least one pulley for guiding the window glass cable; and a support for supporting the pulley, the support being provided to the base and supported by an edge part of the opening of the inner panel.