Dial Shifter Assembly With Gap-Free Rotation and Quiet P-Button Return
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Solution Overview
Problem
Conventional dial-type shifting control apparatuses for vehicles suffer from foreign substances entering through operation gaps and generate noise due to the return mechanism of the P-gear button.
Innovation Solution
Integration of the dial bezel and upper cover into a single body to eliminate operation gaps and the use of an impact absorption member in the button guide to absorb the impact of the P-gear button's return, preventing noise transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an operation gap is formed between the dial bezel and upper cover to enable easy rotation, then the dial can be rotated smoothly, but foreign substances can enter through the gap causing operational problems
Solution Approach 1:
The dial bezel and upper cover are merged into a single integrated component, eliminating the operation gap between them. This integration maintains smooth dial rotation while preventing foreign substances from entering through the gap, as there is no gap to allow entry.
2Ease of operation
If the P-gear button return mechanism directly contacts the upper cover, then the button returns to original position, but impact noise is generated and transmitted to vehicle interior
Solution Approach 1:
A button guide is introduced as an intermediary component between the P-gear button and the upper cover. The button guide includes an impact absorption member that intercepts the return motion of the P-gear button, absorbing the impact before it can contact the upper cover and generate noise.
3Ease of manufacture
If the dial bezel and upper cover are separate components, then manufacturing and assembly are simplified, but foreign substances can enter through the gap between them
Solution Approach 1:
The dial bezel and upper cover are combined into a single integrated component through injection molding. This merging eliminates the gap between separate components that would allow foreign substance entry, while the integrated design remains manufacturable through standard injection molding processes.
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
Prevents foreign substances from entering and ensures smooth rotation of the dial, while reducing internal noise by absorbing the impact of the P-gear button's return, enhancing user experience.
Implementation Method 1
an impact absorption member configured to absorb an impact generated when the P-gear button is returned to an original position
Data Source
AI summary
A dial-type shifting control apparatus of vehicles may include a dial bezel and an upper cover integrated into a single body to be rotated together when a dial is rotated, obviating formation of an operation gap between the dial bezel and the upper cover to prevent foreign substances from entering through the operation gap, and a button guide disposed under an upper cover attenuates an impact occurring when a P-gear button is returned, and thus to prevent noise, caused by striking of the upper cover when the P-gear button is returned, from being transmitted to the interior of a vehicle.