Temporary Vehicle Door Hinge with Inner Pivot Axis
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Solution Overview
Problem
Current devices for temporarily associating vehicle doors with vehicle bodies are complex, heavy, and cumbersome, making them difficult to operate and not suitable for robotic manipulation, while simplifying these devices to reduce costs compromises the quality of operations.
Innovation Solution
A device featuring a first support secured to the vehicle body and a second support fixed to the inner face of the door, with a hinge axis located inside the body and beyond the door's edge, allowing the door to pivot freely without contact and maintain proximity for reduced shadow effects during painting, and incorporating a connecting arm with plug-in means and a lock for controlled rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex welded steel frame structures with intermediate connecting rods are used, then the door positioning precision and painting quality are improved, but the device weight and structural complexity increase, making it unsuitable for robotic handling
Solution Approach 1:
The device is divided into two separate supports: a first support attached to the vehicle body and a second support attached to the door. This segmentation eliminates the need for complex intermediate connecting rods and welded steel frames, reducing structural complexity while maintaining positioning precision through the direct hinge connection.
Solution Approach 2:
The invention extracts and eliminates the intermediate connecting rods and complex frame structures from the traditional door mounting device. By using direct hinge connections between simplified supports, the essential function of door positioning is maintained while removing unnecessary structural complexity.
2Stability of the object's composition
If heavy welded steel frame structures are used, then the door positioning stability is improved, but the device weight increases, making it incompatible with robotic door handling
Solution Approach 1:
By segmenting the mounting device into separate body-mounted and door-mounted supports connected by a hinge, the invention eliminates heavy intermediate connecting structures. The stability is maintained through the direct hinge connection that provides rigid positional control while significantly reducing overall device weight for robotic compatibility.
3Ease of manufacture
If simple false hinge structures are used to reduce costs, then the device complexity and cost are reduced, but the operational quality and positioning precision deteriorate
Solution Approach 1:
The segmented support structure with direct hinge connection simplifies manufacturing compared to welded steel frames while maintaining operational quality. The first support attached to the body and second support attached to the door create a stable, precise connection without requiring complex intermediate structures, achieving cost reduction without sacrificing positioning precision.
Data Source
Figure 1
Figure 2a~2b
Figure 3~5
AI summary
The invention relates to a temporary mounting device for a door (3) on a vehicle body (1) comprising: - a first support (6) fixed to the vehicle body near the door opening, having means (8a, 9a) which define a pivot axis (15), - a second support (10) fixed to the vehicle door (3) which carries pivot means (13, 14) complementary to those of the first support (6) to be received by the latter and allow the door (3) to be maneuvered in rotation around this pivot axis (15), characterized in that the second support (10) is fixed on the inner face of the door (3) and in that the pivot axis (15) is located 7 inside the body and beyond an edge 3a of the door on the side of which the second support is fixed.