Vehicle Video Display Pivoting Base Mounting
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Solution Overview
Problem
Conventional video display apparatuses for vehicles are limited in their ability to accommodate different vehicle roof curvatures, often obstructing the interior rear-view mirror and requiring modifications for each vehicle type.
Innovation Solution
An elongated base with a smaller mating surface area, allowing for adjustable positioning and rotation to fit various vehicle roofs, combined with a pivoting mechanism that reduces obstruction and allows for secure fastening without blocking the rear-view mirror.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional base construction is used, then the video display apparatus can be mounted on a vehicle roof, but it cannot accommodate different vehicle roof curvatures and requires modifications for each vehicle type
Solution Approach 1:
The base is designed with an elongated structure featuring a pivoting mechanism that allows dynamic adjustment between a first position (closer to the vehicle roof) and a second position (farther from the vehicle roof). This dynamic positioning capability enables the video display apparatus to adapt to different vehicle roof curvatures without requiring modifications for each vehicle type, thereby resolving the technical contradiction between adaptability and device complexity.
2Strength
If a large mating surface is used for fastening, then the fixing frame can be securely attached to the vehicle roof, but it obstructs the interior rear-view mirror
Solution Approach 1:
The fixing frame is designed with a segmented structure where the mating surface area is specifically reduced to less than three quarters of the cross-sectional area of the base's first end portion. This segmentation allows the fixing frame to maintain secure attachment to the vehicle roof while minimizing obstruction of the interior rear-view mirror, thereby resolving the technical contradiction between fastening strength and visual obstruction.
3Reliability
If the base is positioned close to the vehicle roof, then the video display is securely mounted, but it blocks the interior rear-view mirror
Solution Approach 1:
The pivoting mechanism enables the base to be positioned dynamically at different distances from the vehicle roof. When mounted, the base can be adjusted to a second position that is farther from the vehicle roof, thereby maintaining secure mounting through the pivoting connection while reducing obstruction of the interior rear-view mirror. This dynamic positioning resolves the technical contradiction between mounting security and visual obstruction.
Data Source
AI summary
A video display apparatus includes a base, a video display installed on the base, and a fixing frame for fastening the base on a vehicle roof. The base has an elongated case. The case has a first end portion and an opposite second end portion. The fixing frame is pivotally connected to the first end portion, so the base is rotatable between a first position and a second position with respect to the fixing frame. When the fixing frame is fastened to the vehicle roof, a distance between the vehicle roof and the second end portion at the first position is more than that at the second position. The fixing frame has a mating surface for abutting against the vehicle roof. The area of the cross-section of the first end portion is less than three quarters of the area defined by the outer edge of the mating surface.