Coaxial Vent Knob Assembly for Slim Vehicle Airflow Control
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Solution Overview
Problem
The configuration of slim profile vehicle vents makes traditional adjustment mechanisms difficult to utilize, necessitating an alternative mechanism that is compatible with the slim profile design.
Innovation Solution
A vent assembly with a primary vane and secondary vanes, adjustable via coaxial knobs, allowing independent control of airflow direction, featuring a primary adjustment knob for the primary vane and a secondary adjustment knob for the secondary vanes, with a mechanism that can be locked or extended for aesthetic and functional compatibility with slim vents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional slider levers are used to adjust airflow direction, then the adjustment mechanism is simple in structure, but it becomes difficult to utilize with slim profile vent configuration
Solution Approach 1:
The patent implements a nested adjustment mechanism where a first adjustment mechanism (for primary vane) and a second adjustment mechanism (for secondary vanes) are integrated within a shared housing structure. The coaxial knobs are positioned one inside another, with the first knob having a first opening and the second knob having a second opening, allowing both adjustment functions to be accessed through the same exterior interface while maintaining compact dimensions suitable for slim profile vents.
Solution Approach 2:
The shared housing structure serves multiple functions: it houses both the first and second adjustment mechanisms, provides a common exterior interface for user interaction, and supports the coaxial arrangement of both adjustment knobs. This multi-functional design consolidates what would traditionally require separate adjustment mechanisms into a single integrated unit, improving ease of operation while maintaining simplicity.
2Adaptability or versatility
If multiple separate adjustment mechanisms are used for primary and secondary vanes, then each mechanism can be optimized independently, but the overall device complexity increases
Solution Approach 1:
The patent implements a nested adjustment mechanism where a first adjustment mechanism (for primary vane) and a second adjustment mechanism (for secondary vanes) are integrated within a shared housing structure. The coaxial knobs are positioned one inside another, with the first knob having a first opening and the second knob having a second opening, allowing both adjustment functions to be accessed through the same exterior interface while maintaining compact dimensions suitable for slim profile vents.
Solution Approach 2:
The adjustment system is segmented into two independent but integrated mechanisms: the first adjustment mechanism for controlling the primary vane and the second adjustment mechanism for controlling the secondary vanes. Each mechanism can be optimized independently for its specific function, yet both are housed within a shared structure that reduces overall complexity compared to completely separate mechanisms.
3Adaptability or versatility
If coaxial knobs are used for adjustment, then the mechanism is more compatible with slim profile vent configuration, but the mechanism complexity increases
Solution Approach 1:
The patent merges the adjustment interfaces for both primary and secondary vane control into a single coaxial knob assembly. The first and second knobs are positioned coaxially within the shared housing, allowing both adjustments to be made from the same exterior location. This merging of adjustment functions into a compact coaxial arrangement provides compatibility with slim profile vents while the integrated housing structure helps manage the overall complexity.
Data Source
AI summary
A vent assembly of a vehicle includes a bezel defining a vent opening through which an airflow is directed. A primary vane extends across the vent opening and is movable about a primary vane axis to adjust an airflow direction in a first direction. A plurality of secondary vanes are arrayed across the vent opening and are movable about a secondary vane to adjust the airflow direction in a second direction. A primary adjustment knob is located on an adjustment shaft and is rotatable about an adjustment axis. The primary adjustment knob is configured to effect movement the primary vane about the primary vane axis. A secondary adjustment knob is coaxial with the primary adjustment knob and is independently rotatable about the adjustment axis. The secondary adjustment knob is configured to effect movement of the plurality of secondary vanes about their respective secondary vane axes.