Stabilizer Bushing Structure With End Seals Against Debris Entry
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Solution Overview
Problem
Foreign substances enter the interior of the bushing device for a stabilizer from the outside due to the gap between the stabilizer bar and the bushing, causing potential damage.
Innovation Solution
A bushing device with a bracket section coupled to a subframe, a bearing section, a bushing section surrounding the stabilizer bar, and foreign substance blocking sections at both ends of the bracket section to eliminate the gap between the stabilizer bar and the bracket section, thereby blocking foreign substances from entering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gap is maintained between the stabilizer bar and the bushing for rotational movement, then the stabilizer bar can rotate smoothly, but foreign substances can enter the interior of the bushing from the outside
Solution Approach 1:
The bushing device is segmented into multiple functional sections: a bracket section, a bearing section, a bushing section, and a foreign substance blocking section. This segmentation allows the rotational function to be separated from the sealing function, enabling smooth rotation while preventing foreign substance entry through the dedicated blocking section.
Solution Approach 2:
The foreign substance blocking section acts as an intermediary element between the external environment and the bushing interior. It includes a blocking plate with a blocking protrusion that extends into the gap, serving as a barrier that prevents foreign substances from entering while allowing the stabilizer bar to rotate.
2Object-affected harmful factors
If the gap between the stabilizer bar and the bracket section is eliminated to block foreign substances, then foreign substance entry is prevented, but the structure becomes more complex with additional blocking components
Solution Approach 1:
The foreign substance blocking section is merged with the existing bracket section structure. The blocking plate is coupled to the bracket section, and the blocking protrusion integrates with the bracket's geometry, eliminating the need for separate blocking components and reducing overall structural complexity.
Solution Approach 2:
The bracket section serves multiple functions: it provides structural support, enables rotational movement, and prevents foreign substance entry through its integrated blocking protrusion. This multi-functionality reduces the need for additional components and simplifies the overall device structure.
3Object-affected harmful factors
If a blocking plate is used to prevent foreign substance entry, then sealing is improved, but the blocking plate requires compression to contact the stabilizer bar effectively
Solution Approach 1:
The blocking plate is designed with dynamic compression capability. The engagement portion allows the blocking plate to be compressed by the engagement protrusion, enabling the blocking protrusion to contact the stabilizer bar with sufficient force to prevent foreign substance entry while maintaining the ability to accommodate rotational movement.
Solution Approach 2:
The compression force applied to the blocking plate is optimized to achieve effective sealing without excessive force. The engagement protrusion compresses the blocking plate to a degree that ensures contact with the stabilizer bar, and this compression parameter is balanced to prevent foreign substance entry while avoiding damage to components.
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 foreign substances from entering the bushing device, thereby preventing damage and ensuring the integrity and functionality of the stabilizer bushing system.
Implementation Method 1
a plate contact surrounding the outer portion of the stabilizer bar and elastically deformed by compression of the engagement portion to contact the stabilizer bar
Data Source
AI summary
A bushing device for a stabilizer includes a bracket section coupled to a subframe, a bearing section mounted on the bracket section, a bushing section coupled to the bearing section to surround a stabilizer bar, and a pair of foreign substance blocking sections respectively coupled to two ends of the bracket section so as to contact the stabilizer bar so that a gap between the stabilizer bar and the bracket section is removed to block foreign substances from entering the bracket section from an outside.