Cowl Cover Locking Structure for Snow Load Deformation Resistance
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Solution Overview
Problem
The repeated accumulation and removal of snow on the vertical wall body can cause deformation of the lock portion, leading to a degradation in the locking quality and visual appearance between the cowl cover and the vertical wall body over time.
Innovation Solution
The cowl cover apparatus features an elastically deformable insertion portion on the vertical wall body that is partly inserted into a regulation portion on the cowl cover, allowing for secure locking and effective load release, with additional features like arm portions and stopper portions to enhance the locking mechanism and prevent coming-off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid lock portion is used for secure locking, then locking strength is improved, but deformation resistance under snow load deteriorates
Solution Approach 1:
The lock portion changes its physical state from rigid to elastically deformable under load, allowing it to bend when snow accumulates and then return to its original shape when the load is removed, preventing permanent deformation while maintaining locking function
Solution Approach 2:
The lock portion transitions from a static rigid structure to a dynamic element that can elastically deform and recover, adapting its shape in response to varying snow loads while maintaining the locking connection
2Stability of the object's composition
If the lock portion is made flexible to resist deformation, then deformation resistance is improved, but locking strength may deteriorate
Solution Approach 1:
The lock portion uses elastic deformation within acceptable limits to resist permanent shape change, while the material properties and geometric design ensure that the elastic modulus and cross-sectional dimensions maintain sufficient locking strength
3Reliability
If the insertion portion is fully inserted into the regulation portion for secure locking, then locking quality is improved, but ease of detachment deteriorates
Solution Approach 1:
The insertion portion is divided into multiple segments or sections with different insertion depths, allowing it to be partially inserted for easy detachment or fully inserted for secure locking, providing operational flexibility
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 design secures the locking quality between the cowl cover and the vertical wall body, preventing deformation and maintaining visual and locking integrity over time, even under loads such as snow accumulation and removal, and allows for easy attachment and detachment.
Implementation Method 1
the insertion portion is formed to be elastically deformable in the vehicle width direction due to a reaction force from the cowl cover against a load onto the vertical wall body in a predetermined direction intersecting the vehicle width direction
Data Source
AI summary
A cowl cover apparatus includes a cowl cover that covers a cowl portion, a vertical wall body detachably attached to the cowl cover and being positioned while rising with respect to the cowl cover in a state of being attached thereto. The vertical wall body includes an insertion portion in an end portion in a vehicle width direction. The cowl cover includes a regulation portion into which the insertion portion is partly inserted in the vehicle width direction. The insertion portion is formed to be elastically deformable in the vehicle width direction due to a reaction force from the cowl cover against a load onto the vertical wall body in a predetermined direction intersecting the vehicle width direction.