Vehicle Door Stopper With Threaded Adjustment And Expansion Fastening
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Solution Overview
Problem
Existing adjustable stopper devices for vehicle doors or hoods face issues with dismountability, sealing properties, unwanted rotation, haptic feedback, and the realization of these features.
Innovation Solution
An adjustable stopper device with a base part, an adjustment part connected via threads, a stopper part made of softer material, and a fastening structure using expansion and/or hook elements that can be brought into a fastening or release position, allowing for screwless fixation and easy mounting while maintaining dismountability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastening structures are used, then the device is securely fastened to the car body, but the dismountability is reduced
Solution Approach 1:
The fastening structure uses expansion elements that can dynamically change their state between a fastening position (expanded to engage with the car body) and a release position (retracted to allow removal). This dynamic capability enables the same structure to provide both secure fastening and easy dismounting without requiring separate mechanisms.
2Strength
If the stopper part is made of harder material, then the durability is improved, but the sealing properties deteriorate
Solution Approach 1:
The stopper part is made of softer material specifically at the sealing contact surfaces to ensure good sealing properties against the car body, while the overall structure maintains adequate strength. This localized material selection allows the sealing areas to be compliant and seal-effective without compromising the structural integrity of the entire component.
3Manufacturing precision
If the adjustment part is made with fine threads, then the adjustment precision is improved, but the device complexity increases
Solution Approach 1:
The adjustment part uses standard threaded connections that serve multiple functions: providing precise adjustment capability, enabling easy assembly and disassembly, and allowing for tool-less operation. The universal thread design achieves precision without requiring complex specialized mechanisms.
4Reliability
If the fastening structure is made complex, then the fastening security is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The fastening structure is segmented into separate base part and adjustment part components that can be manufactured independently using standard processes. The expansion elements are integrated into the base part as separate functional features, allowing each component to be manufactured with conventional methods while achieving secure fastening when assembled.
Data Source
Figure 1
Figure 2a~2f
Figure 2g~2k
AI summary
Adjustable stopper device (1) for a vehicle door or hood, comprising - a base part (100), - an adjustment part (200), wherein the adjustment part (200) is connected to the base part (100) via threads (120, 220) and thereby rotatable around a device axis (210) with respect to the base part (100), - a stopper part (300) configured to contact the vehicle door and to provide an abutment surface (310) for the vehicle door when the vehicle door is closed, wherein the stopper part (300) is connected to the adjustment part (200) and wherein the axial position of the abutment surface (310) is adjustable by turning the adjustment part (200) with respect to the base part (100) around the device axis (210), - a fastening structure (400) for fastening the base part (100) to the car body (2). Vehicle with, use of and method for manufacturing such device.