False Hinge for Vehicle Door Vertical Rotation
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Solution Overview
Problem
Existing temporary connection means for vehicle doors during surface treatments, such as cataphoresis and painting, are limited in their usability due to the complexity and heaviness of the tools required, which restricts the freedom of movement needed for proper door alignment and treatment.
Innovation Solution
A false hinge system that temporarily connects a vehicle door to the vehicle chassis, allowing rotation around a vertical axis, with coupling means that ensure the door rotates around a virtual vertical axis, enabling controlled movement and preventing contact with the vehicle body during treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If spreader tools are used to enable door pivoting movement during temporary articulation, then the door can be positioned to avoid conflict with bodywork elements, but the tools become heavy and complex, restricting freedom of movement and requiring a sufficiently free immediate environment of the vehicle
Solution Approach 1:
The false hinge is divided into two separate parts: a first hinge part attached to the vehicle structure and a second hinge part attached to the door. These parts are connected through coupling means that allow independent positioning and movement, eliminating the need for a single complex spreader tool while maintaining door positioning freedom.
Solution Approach 2:
The coupling means act as an intermediary mechanism between the two hinge parts, enabling controlled movement and positioning of the door relative to the vehicle structure without requiring heavy spreader tools. This intermediary mechanism provides the necessary freedom of movement while simplifying the overall system.
2Adaptability or versatility
If the door is permanently mounted before surface treatments, then the treatment process cannot be properly executed, but if the door is temporarily articulated with complex tools, then the treatment can proceed but the tools restrict movement freedom
Solution Approach 1:
The false hinge provides dynamic, adjustable articulation between the door and vehicle structure, allowing the door to be positioned in various orientations during surface treatments. This dynamic positioning capability maintains treatment accessibility while preserving door movement freedom, unlike static permanent mounting or complex fixed spreader tools.
3Productivity
If ball joint false hinges are used for rapid unhinging, then the temporary articulation can be quickly removed, but the complexity and heaviness of tools remains an issue
Solution Approach 1:
The coupling means are designed with nested components that allow rapid assembly and disassembly. The second hinge part can be quickly inserted into or removed from the first hinge part through the coupling mechanism, enabling fast unhinging while keeping each individual component relatively simple and lightweight.
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
The false hinge system allows for more extensive use by simplifying the temporary connection process, ensuring precise door alignment, and preventing contact with the vehicle body during rotation, thus facilitating efficient surface treatments.
Implementation Method 1
The first hinge part comprises a primary connecting rod which carries the first articulation element and which is pivotally mounted around a second axis which is substantially vertical relative to the first hinge part and in that the first hinge part and the second hinge part have coupling means such that the operation of the opening imposes on the connecting rod, and therefore on the first articulation element, a movement around the second axis which leads to a rotation of the opening around a third axis, virtual, vertical and substantially fixed.
Data Source
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AI summary
The invention relates to a false hinge for temporarily connecting, in vertical rotation, a side opening (3) of a vehicle with a front edge (3a) to a structure (2) of the latter, comprising a first piece or hinge (4) provided with a first articulation element (5) and a plate (6) for its attachment to the structure (2), offset from this first element (5), and a second piece or hinge (7) provided with a second articulation element (8) adapted to cover or receive the first (5) and a plate (9) for its attachment to the opening (3), offset from this second element (8), characterized in that the first articulation element (5) is carried by a connecting rod (10) pivotally mounted on the first hinge (4) while the second articulation element (8) is carried by the second hinge (7), and in that the first (4) and second (7) hinges have coupling means (11, 12) such that the operation the opening (3) imposes on the connecting rod,Therefore, the first means of articulation (5) involves a movement around its pivot which leads to a rotation of the opening (3) around a virtually fixed vertical axis.