Folding Joint for Vehicle Display Device
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Solution Overview
Problem
Conventional folding joints for rear view display devices in vehicles are bulky, obstructing the driver's view and affecting the vehicle's drag coefficient, and lack a compact design that can efficiently absorb external forces without damaging the device.
Innovation Solution
A folding joint with a spring biased cam section and a detent or recessed surface, utilizing a wave spring for biasing, which allows bidirectional folding and adjustable locking positions, reducing the overall height and combining functionalities in a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional folding joint with separate hinge sections is used, then the folding joint can enable bidirectional folding to protect the rear view display device, but the overall height becomes large making the shape bulky and obstructing the driver's view
Solution Approach 1:
The patent combines the first and second hinge sections into a single integrated hinge section, merging two separate rotational functions into one component. This integration eliminates the need for multiple hinge sections while maintaining the bidirectional folding capability, thereby reducing overall height and avoiding obstruction of the driver's view
Solution Approach 2:
The single hinge section is designed to provide multiple functions: it enables both forward folding (first rotational direction) and rearward folding (second rotational direction), serving as a universal component that replaces multiple specialized hinge sections. This multi-functionality achieves space savings while maintaining comprehensive protection
2Ease of operation
If a conventional folding joint with multiple components is used, then the folding joint can provide locking positions, but the device complexity increases
Solution Approach 1:
The patent merges the locking mechanism into the single hinge section by providing a recessed surface with multiple recesses that interact with a cam section. This integration eliminates separate locking components while maintaining adjustable locking positions at different rotational angles, thereby reducing device 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
The solution results in a compact, flat design that does not obstruct the driver's view or the viewing angle, maintains a low drag coefficient, and effectively absorbs external forces, reducing damage to the rear view display device.
Implementation Method 1
a biasing element including a spring, a coil, a wave spring or other elastic member for biasing at least one of the one or more hinge sections in response to rotation of the folding joint
Data Source
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AI summary
A folding joint for attaching a rear view display device to a vehicle, comprising: • two hinge sections (606, 608) each of which is adapted to rotate relative to the vehicle, with each of the hinge sections comprised on a first end (501) and a second end (502) of an intermediate attachment (504); • a biasing element (902) comprising a spring, a coil, a wave spring, and/or elastic member for biasing at least one of the one or more hinge sections in response to rotation of the folding joint, with the biasing element (902) biasing at least one member (1000, 1002), in particular in form of a spring biased cam section and a biased clamping bolt, • the intermediate attachment (504) comprised by the hinge sections, a first protruding member (700), and a second receiving cavity (705); • a rear view display arm (200) pivotably coupled to the intermediate attachment (504) at the first end (501) to form a first axis (606), the rear view display arm (200) comprising a first receiving cavity (701) to receive the first protruding member (700); and • a base (500) pivotably coupled to the intermediate attachment (504) at the second end (502) and forming a second axis (608), the base (500) comprising a second protruding member (704) that is received by the second receiving cavity (705).