Vehicle Roof Display Hinge With Cam Roller Position Locking
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Solution Overview
Problem
Existing display-screen relocation devices in vehicles are complex, space-consuming, and prone to noise and mechanical failure, lacking a simple and reliable mechanism for transitioning between rest and operational positions.
Innovation Solution
A device utilizing a control roller supported for rotation along a guide rail, coupled with control cams, to block or enable the relative mobility of bearings, ensuring secure positioning in either rest or operational states, and a drive system for synchronized swiveling motion, using an electric motor and drive-transmission trains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex swiveling structure with multiple components is used to relocate the display-screen arrangement, then the display can transition between positions, but the device becomes space-consuming and mechanically complex
Solution Approach 1:
The control roller combines multiple functions into a single component: it serves as both the actuating element for swiveling the display and the control element for the latching mechanism. The control cams are integrated directly into the roller's circumference, eliminating the need for separate control levers and latching devices, thus simplifying the overall mechanical structure while maintaining full functionality.
Solution Approach 2:
The control roller performs multiple functions simultaneously: it acts as a swiveling actuator, a control mechanism for the latching device, and a positioning element. By integrating these functions into one component rather than using separate mechanisms for each function, the patent reduces structural complexity and space requirements.
2Reliability
If traditional control mechanisms with multiple parts are used, then positioning can be achieved, but the device generates more noise and requires more maintenance
Solution Approach 1:
The patent extracts the control function from a complex multi-component mechanism and concentrates it into a single roller with integrated control cams. This extraction eliminates unnecessary intermediate components that would generate noise and require maintenance, while the direct cam-roller interaction provides reliable positioning with minimal mechanical noise.
3Volume of moving object
If a space-saving design is implemented, then accommodation is improved, but the mechanism may become less reliable or more complex
Solution Approach 1:
The control roller with its control cams is nested within the existing knee-joint arrangement structure. The roller integrates the control mechanism within the space already defined by the main lever and bearing assembly, achieving space-saving accommodation without adding external components that would increase device volume or compromise reliability.
Data Source
AI summary
A device for relocating a display-screen arrangement relative to a vehicle roof in a vehicle interior, including a knee-joint arrangement with a main lever, with which main lever the display-screen arrangement is resistant to torsion, and a control lever connected in an articulated manner to the main lever. Both the main lever and the control lever are rotationally moveable about a bearing. The bearings are linearly traversable along a guide rail, and are relatively movable with respect to one another along the guide rail via a positive-control device. The positive-control device has a control roller extending along the guide rail and supported for rotational movement about an axis of rotation oriented parallel to the guide rail. The control roller is mechanically coupled via cams with the bearings which are relatively movable with respect to one another.