Slim Vehicle Vent Knob for Dual-Axis Airflow Adjustment

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Solution Overview

Problem

The increasing use of slim profile vents in vehicle interiors makes it difficult to utilize traditional adjustment mechanisms for controlling airflow direction, as these mechanisms are not compatible with the slim profile configuration.

Innovation Solution

A vent assembly with a bezel defining a vent opening, featuring a primary vane and secondary vanes that are selectively movable about their respective axes, controlled by an adjustment knob that allows for both linear and rotational movement to adjust airflow direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional slide lever mechanisms are used to control airflow direction, then the adjustment mechanism is simple and easy to manufacture, but the mechanism is not compatible with slim profile vent configuration

Engineering Contradiction:
Improvecompatibility with slim profile ventVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the control of primary vane and secondary vanes into a single adjustment knob mechanism. The adjustment knob simultaneously controls both the primary vane (for up-down airflow direction) and secondary vanes (for side-to-side airflow direction), merging two separate control functions into one integrated mechanism that fits the slim profile vent configuration.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a dual-axis control system where the adjustment knob operates in two dimensions: linear movement along the knob axis controls the primary vane, while rotational movement about the knob axis controls the secondary vanes. This dimensional approach allows full airflow direction control within a compact space suitable for slim profile vents.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Shape

If a compact adjustment mechanism is used for slim profile vents, then the vent maintains a sleek design, but the mechanism must control multiple vanes with different axes of rotation

Engineering Contradiction:
Improveslim profileVSAvoidairflow direction control
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The patent employs dynamic control where the adjustment knob can perform two distinct types of movement: linear displacement along its axis to rotate the primary vane, and rotational displacement about its axis to rotate the secondary vanes. This dynamic, multi-mode operation allows comprehensive airflow control from a single compact interface, maintaining the sleek slim profile while ensuring ease of operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12325289B2Knob control for slim vent in vehicle
Publication Date: 2025.06.10 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US12325289B2 patent drawing
  • US12325289B2 patent drawing
  • US12325289B2 patent drawing

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. The primary vane is selectably movable about a primary vane axis to adjust a direction of the airflow. A plurality of secondary vanes are arrayed across the vent opening. Each primary vane is selectably movable about a secondary vane axis nonparallel to the primary vane axis to adjust the direction of the airflow. An adjustment knob has a knob central axis. The adjustment knob is configured such that movement of the adjustment knob along the knob central axis moves the primary vane about the primary vane axis, and rotating the adjustment knob about the knob central axis moves the plurality of secondary vanes about their respective secondary vane axes.