Air-Diffuser Control Element With Integrated Soft Bearing
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Solution Overview
Problem
The assembly of control elements for air vents, particularly in motor vehicles, is complex due to the need for separate components like bearing cushions and metal inserts, which require additional assembly steps and increase the number of components.
Innovation Solution
A method involving the production of control elements with two partial elements of different hardness levels, where the soft partial element forms a bearing and is connected to the hard partial element during manufacturing, either through adhesion or geometric shaping, reducing the need for separate assembly and enhancing sliding properties and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate bearing cushion made of soft material is provided, then good sliding properties are achieved, but the number of components and assembly steps increase
Solution Approach 1:
The soft bearing material is integrated directly into the control element body as a single component, merging the bearing function with the control element structure. This eliminates the need for separate bearing cushions and reduces assembly steps while maintaining good sliding properties on the slat.
Solution Approach 2:
The control element is produced as a composite structure with different material properties in different regions - a hard outer shell for structural integrity and a soft inner bearing region for sliding. This allows the single component to provide both structural support and low-friction sliding surfaces.
2Ease of manufacture
If a metal insert is used in the grip part, then aesthetic value is enhanced, but additional assembly steps are required
Solution Approach 1:
The metallic appearance is integrated directly into the control element body through the injection molding process, merging the aesthetic function with the structural component. This eliminates the need for separate metal inserts and their associated assembly steps while maintaining the desired aesthetic value.
Solution Approach 2:
The material properties of the plastic are modified during injection molding to achieve metallic appearance characteristics. By changing the optical parameters (reflectivity, color) of the plastic material itself, the aesthetic value is enhanced without requiring separate metal components.
3Adaptability or versatility
If multiple separate components are used for control element, then functional requirements are met, but assembly work increases
Solution Approach 1:
Multiple functional requirements (structural support, sliding bearing, aesthetic appearance, grip functionality) are merged into a single control element component produced by injection molding. This maintains all necessary functions while eliminating multiple assembly operations and increasing production efficiency.
Solution Approach 2:
While produced as a single component, the control element is designed with functional segmentation - different regions of the single piece serve different purposes (grip areas, sliding surfaces, mounting features). This allows complex functionality to be achieved through intelligent design of a unified component rather than assembly of multiple parts.
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
This approach simplifies the assembly process by integrating the soft bearing component with the hard component as a prefabricated unit, reducing the number of components and assembly work while providing good sliding properties and a pleasant feel, and eliminating the need for separate metal inserts.
Implementation Method 1
a soft material with good sliding properties for moving the operating element on the lamella is advantageous for the bearing
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
In the production of a control element (10) for an air-diffuser, a first sub-element (12) made of a hard component is produced in a first injection-moulding operation, and a second sub-element (14) made of a soft component is produced in a second injection-moulding operation. The second sub-element (14) forms a bearing (20) for mounting the control element (10) on a louvre (22) of the air-diffuser. During the production of the second sub-element (14), the latter is connected to the first sub-element (12) by adhesion and/or by means of geometric shaping. The two sub-elements (12, 14) which are connected captively to each other form a premanufactured unit.