Vehicle Door Alignment Tool for Closed-Door Adjustment
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Solution Overview
Problem
Existing methods for adjusting vehicle doors are time-consuming and inefficient, requiring repeated opening and closing of the door to achieve a correct position, which increases labor and costs.
Innovation Solution
A door adjustment tool with a holding plate and guide pin, allowing adjustment while the door is closed, using magnets for secure attachment and a rotatable joint for easy turning, and a handle for torque transfer, enabling precise positioning without opening the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the door is adjusted by opening and closing the door repeatedly to check position, then the door position can be aligned correctly, but the adjustment process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent introduces a door adjustment tool as an intermediary device between the door and the adjustment mechanism. This tool includes a holding plate with a guide pin that interfaces with the door's holding plate opening, allowing the door to be adjusted while closed. The guide pin fits into an elongated opening in the vehicle body, enabling precise positional adjustment without requiring the door to be opened for visual inspection, thus resolving the contradiction between alignment precision and adjustment time
Solution Approach 2:
The adjustment tool allows the door to be positioned and adjusted in the correct alignment before final tightening of the fastening arrangement. The holding plate and guide pin mechanism enables preliminary positioning while the door is closed, and once the correct position is achieved, the fastening bolts are tightened to secure the door. This eliminates the need for repeated opening and closing cycles that were required in the prior art
2Ease of operation
If the door is adjusted with the door opened to access the adjusting mechanism, then the adjustment can be made, but the door must be opened and closed repeatedly to verify position
Solution Approach 1:
The door adjustment tool serves as a mediator that provides both accessibility to the adjustment mechanism and the ability to verify door position simultaneously. The tool's holding plate attaches to the door's holding plate opening, and the guide pin extends to the elongated opening in the vehicle body, creating a mechanical linkage that allows adjustment while the door remains closed, thus maintaining ease of operation while dramatically improving productivity
Solution Approach 2:
The adjustment tool performs multiple functions: it provides mechanical leverage for adjusting the door position, serves as a positioning reference through the guide pin in the elongated opening, and allows the door to remain closed during the entire adjustment process. This multi-functionality resolves the contradiction between ease of operation and adjustment efficiency
3Adaptability or versatility
If the guide pin centre axis is aligned and eccentric to the holding plate rotational axis, then the holding plate can rotate relative to the holding arrangement, but the structure becomes more complex
Solution Approach 1:
The patent deliberately introduces asymmetry by positioning the guide pin's centre axis eccentrically relative to the holding plate's rotational axis. This asymmetric arrangement is simple in concept but provides powerful functionality: as the holding plate rotates within the holding arrangement, the eccentric guide pin traces a circular path within the elongated opening, enabling comprehensive adjustment of the door position in multiple directions. This resolves the contradiction by showing that a simple asymmetric geometry can provide versatile adjustment capability without significant structural complexity
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
Facilitates fast and exact adjustment of vehicle doors to the vehicle body, reducing the need for repeated opening and closing, thereby saving time and labor.
Implementation Method 1
the holding arrangement being configured to releasably fixate the door adjustment tool against a vehicle body or a door to be adjusted
Data Source
Figure 1a~1b
Figure 2a
Figure 2b
AI summary
A door adjustment tool (10) for a door of a vehicle, wherein the door adjustment tool (10) comprises: - a holding plate (11) having a rotational axis (11x), - a guide pin (12) having a centre axis (12x), and - a holding arrangement (13), wherein the holding plate (11) is provided with a first and a second side (21, 22) and the guide pin (12) is arranged on the holding plate (11) first side (21) with its centre axis (12x) aligned and eccentric to the rotational axis (11x) of the holding plate (11), and the holding arrangement (13) is arranged on the second side (22) of the holding plate (11) and configured to releasably fixate the door adjustment tool (10) against a vehicle body (100) or a door (51) to be adjust.