Hook-Shaped Guide Dispensing Head for Contoured Vehicle Doors
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Solution Overview
Problem
Existing applicators struggle to apply materials consistently over highly contoured surfaces, such as vehicle doors, due to the need for smooth and flat surfaces to maintain even dispensing, which is often not feasible in industrial applications.
Innovation Solution
A dispensing head with a hook-shaped guide and lateral foot element is attached to the supply tube, allowing the material to be dispensed as a consistent ribbon by positioning the discharge opening at a set distance from the surface, enabling even application along complex shapes and contours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If wheels are used to maintain constant distance from the surface, then consistent material dispensing is achieved, but the applicator cannot handle contoured surfaces with seams and welds
Solution Approach 1:
The guide is segmented into multiple functional elements: a body portion, a first leg extending downward, and a second leg extending laterally. This segmentation allows each element to independently contact different features of the contoured surface, enabling the applicator to adapt to complex geometries while maintaining consistent dispensing distance through the defined gap space
Solution Approach 2:
The guide acts as an intermediary between the dispensing nozzle and the contoured surface. By positioning the guide's legs to contact specific surface features, it mediates the distance control function, allowing the nozzle to maintain a consistent offset from the surface without requiring the surface itself to be smooth or flat
2Manufacturing precision
If the dispensing nozzle is kept at a consistent distance from the surface, then even material application is achieved, but smooth and flat surfaces are required
Solution Approach 1:
The guide extends in multiple dimensions beyond the simple linear offset of traditional nozzles. The three-dimensional configuration of the body, first leg, and second leg creates a multi-dimensional positioning system that can accommodate surface variations in multiple directions simultaneously, maintaining consistent material application without requiring flat surfaces
3Shape
If auxiliary dispensing heads are used to change material shape, then non-cylindrical dispensing patterns are achieved, but control over dispensing distance and consistency is lost
Solution Approach 1:
The guide structure performs multiple functions simultaneously: it defines the discharge opening shape for material formation, positions the dispensing nozzle at a consistent distance from the surface, and adapts to contoured surfaces through its leg configuration. This multi-functionality integrates shape control and distance control into a single unified component
Data Source
AI summary
A dispensing head for a supply tube that enables material to be evenly applied adjacent to the peripheral edge of a thin structure, such as a vehicle door. The dispensing head has a first end with a first opening and a second end with a discharge opening. A guide extends from the second end. The guide includes a descending element and a lateral foot element, wherein the bottom surface of the second end, the descending element, and the lateral foot element define three sides of an open gap space. The dispensing head is attached to a supply tube. The thin structure is positioned within the guide. The hook shaped guide positions the discharge opening a set distance from the application surface on the thin structure. The guide is moved along the peripheral edge where the material can be dispensed evenly at a set distance from the peripheral edge.