Power Window Switch Knob Height Layout for Intuitive Operation
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Solution Overview
Problem
The existing power window switch apparatus has knobs of the same height, making it difficult for drivers to intuitively operate them without visual confirmation, leading to potential operational errors. Additionally, the same height and insufficient spacing between front and rear knobs result in a larger apparatus size, reducing the armrest support area.
Innovation Solution
The power window switch apparatus is designed with knobs at different heights, facilitating intuitive operation. The apparatus includes a switch housing with first and second knobs mounted at varying heights, along with operating pieces and detectors to enhance operational accuracy and reduce the overall size of the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If knobs are arranged at the same height, then the structure is simple and manufacturing is easy, but it becomes difficult for drivers to intuitively distinguish and operate the knobs without visual confirmation
Solution Approach 1:
The patent applies asymmetry by arranging the front row knobs and rear row knobs at different heights. Specifically, the front row knobs are positioned at a first height while the rear row knobs are positioned at a second height that is different from the first height. This asymmetric vertical arrangement creates intuitive visual distinction between front and rear window controls, allowing drivers to operate them correctly without visual confirmation, thereby resolving the contradiction between ease of operation and device complexity.
2Reliability
If sufficient distance is secured between front knobs and rear knobs, then operational accuracy is improved, but the size of the power window switch apparatus increases
Solution Approach 1:
The patent resolves this contradiction by transitioning from a horizontal spacing arrangement to a vertical spacing arrangement. Instead of increasing horizontal distance between knobs, the invention utilizes the vertical dimension by positioning front row knobs at a first height and rear row knobs at a second height. This dimensional change allows sufficient operational distinction while minimizing the horizontal footprint, thereby maintaining reliability without significantly increasing the apparatus area on the armrest.
3Area of stationary object
If knobs are positioned closer together, then the apparatus size is reduced, but it becomes harder to distinguish between front and rear knobs
Solution Approach 1:
The patent applies asymmetry in the vertical arrangement to resolve this contradiction. By positioning front row knobs at a first height and rear row knobs at a second height (different from the first), the invention creates clear visual and tactile distinction between front and rear controls even when horizontal spacing is minimized. This asymmetric vertical positioning allows the apparatus to occupy a smaller area on the armrest while maintaining ease of operation and knob distinction.
Data Source
AI summary
A power window switch apparatus includes: a switch housing; a first knob pivotally mounted on the switch housing by a first pivot pin; and a second knob pivotally mounted on the switch housing by a second pivot pin. In particular, a top surface of the second knob is located higher than a top surface of the first knob.