Horn Actuating Device Elastic Member Shaking Prevention
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Solution Overview
Problem
The existing horn actuating devices in motor vehicles, particularly the floating type, suffer from shaking issues due to the gap between the horn actuating cover and the cover mounting portion, which deteriorates the operating feeling and requires additional ribs to prevent shaking, leading to interference and further deterioration of the operating experience.
Innovation Solution
A novel structural elastic member is introduced, comprising a fixing portion, an inclined portion, and a bent portion, which is installed between the horn actuating cover and the cover mounting portion to elastically support the cover and generate restoring force, preventing shaking and maintaining the gap, while allowing for smooth operation and electrical conduction for alarm sound generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If ribs are added to the cover mounting portion to prevent shaking of the horn actuating cover, then shaking is prevented, but interference occurs between the horn actuating cover and the ribs, deteriorating the operating feeling
Solution Approach 1:
The patent introduces an elastic member as an intermediary component between the horn actuating cover and the cover mounting portion. This elastic member mediates the interaction by providing shock absorption and elastic deformation, preventing direct contact and interference between the cover and the ribs, thus maintaining both stability and smooth operation.
Solution Approach 2:
The patent changes the physical parameters of the system by introducing an elastic member with specific material properties (elasticity, shock absorption capability). This allows the system to dynamically adjust to forces and movements, preventing shaking through elastic restoration while maintaining smooth operation through controlled deformation.
2Ease of operation
If the horn actuating cover is floated from the cover mounting portion to maintain a gap, then operating feeling is secured, but shaking occurs due to the gap
Solution Approach 1:
The elastic member serves as a mediator that fills the functional role of the gap without causing interference. It provides the necessary support and stability while allowing the cover to remain floated, thus preventing shaking without compromising the operating feeling secured by the gap.
Solution Approach 2:
The patent changes the physical state of the gap by introducing an elastic member that can deform and restore. This transforms the static gap into a dynamic element that can absorb shocks and prevent shaking while maintaining the floating structure and gap distance.
3Reliability
If the horn actuating cover is pressed down to activate the horn, then alarm sound is generated, but the elastic member must be compressed, requiring sufficient elastic restoring force
Solution Approach 1:
The patent selects and designs the elastic member with specific material parameters and geometric dimensions to ensure it provides sufficient restoring force for reliable alarm activation. The elastic modulus, cross-sectional area, and length of the elastic member are optimized to generate the required force while maintaining smooth operation during pressing.
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 elastic member effectively prevents shaking and rattle noise, enhances the operating feeling by maintaining the gap without restraining movement, and ensures reliable electrical contact for alarm sound generation, improving the overall user experience.
Implementation Method 1
a plurality of elastic members disposed between the horn actuating cover and the cover mounting portion, and formed to elastically support shaking of the horn actuating cover, which is caused by the gap, and generate elastic restoring force for returning the horn actuating cover back to an original position
Data Source
AI summary
A horn actuating device of a motor vehicle is provided to enhance operating feeling of a horn actuating cover installed on a steering wheel. The horn actuating device prevents shaking of a horn actuating cover and prevents deterioration of operating feeling of the horn actuating cover by adopting a structural elastic member configured such that after the horn actuating cover for actuating a horn is actuated, the elastic member for returning the horn actuating cover back to an original position restrains shaking of the horn actuating cover and then installing the elastic member between the horn actuating cover and a horn mounting portion.