Expandable Garnish Bracket for Vehicle Surface Gap Minimization
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Solution Overview
Problem
Conventional garnish installation structures often result in gaps or steps between the garnish and the vehicle surface, making it difficult to achieve a smooth external appearance.
Innovation Solution
An insert type expandable garnish with a body part, tension structure part, and expandable bracket part that are designed to be inserted into a groove-shaped mounting part on the vehicle surface, allowing the expandable bracket to protrude and adhere securely, minimizing gaps through a mechanism involving a pin, rotary vane, and spring system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional garnish is mounted to a vehicle panel, then the garnish can be installed on the vehicle surface, but a gap or step is formed between the garnish and the panel, compromising the smooth external appearance
Solution Approach 1:
The garnish body is designed with an expandable bracket that can dynamically change its state from a compressed insertion state to an expanded adhered state. The bracket protrudes from the body part and adheres to the mounting part through adhesive, creating a dynamic adaptation mechanism that ensures precise surface alignment while maintaining a relatively simple overall structure.
2Manufacturing precision
If the garnish is pressed toward the mounting part during installation, then the garnish can be inserted into the mounting part, but a gap may still form between the garnish and the panel due to tolerance accumulation
Solution Approach 1:
The expandable bracket is pre-configured in a compressed state within the body part during manufacturing, allowing it to be easily inserted into the mounting part. Once inserted, the bracket is then expanded to protrude and adhere to the mounting part, creating a preliminary positioning action that compensates for tolerance accumulation and prevents gap formation while maintaining ease of installation.
3Manufacturing precision
If the expandable bracket part is designed to protrude and adhere to the mounting part, then the gap formation is minimized, but the garnish structure becomes more complex
Solution Approach 1:
The expandable bracket is nested within the body part in a compressed state, allowing it to be inserted into the mounting part without increasing the overall size. Once inserted, the bracket expands to protrude and adhere to the mounting part, creating a compact nested structure that achieves precise surface matching while minimizing the increase in structural complexity.
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
The solution effectively prevents or minimizes the formation of gaps or steps between the garnish and the vehicle surface, ensuring a smooth external design and simplifying the installation process by maintaining a consistent surface match and allowing for various garnish types.
Implementation Method 1
a spring located inside the guide body
Implementation Method 2
having a second side in the longitudinal direction coated with an adhesive material
Data Source
AI summary
An insert type expandable garnish is provided and includes a body part that is inserted into a mounting part of a groove shape formed on the surface of a vehicle. A tension structure part is disposed on the body part to press the body part from the inner bottom surface of the mounting part toward the outside of the vehicle, when the body part is pressed toward the mounting part and inserted into the mounting part. An expandable bracket part protrudes from the body part and is adhered with the mounting part, when the tension structure part presses the body part.