Multi-Joint Roof Carrier Structure for Easy Long Cargo Loading
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Solution Overview
Problem
Existing vehicle roof carriers face challenges in loading and unloading long cargoes efficiently, as they often require additional support structures like chairs or ladders, and can interfere with vehicle curves, limiting the ability to load heavy or long items like bicycles, and have aesthetic and waterproofing issues.
Innovation Solution
A lifting multi-joint roof carrier with a sealed housing structure, featuring a lower frame, upper frame, and multi-joint members that allow vertical movement, rotation, and horizontal loading, preventing interference with vehicle curves and enabling easy loading/unloading of various cargo lengths while maintaining a sleek appearance and waterproof function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lever bar and arm bar are extended to allow vertical downward rotation, then the lifting capability is improved, but the lever bar contacts the curved portion of the vehicle side
Solution Approach 1:
The carrier is divided into multiple segments (base rail, lever bar, arm bar) that can independently rotate and adjust their positions. This segmentation allows each component to move through optimized paths that avoid contact with the vehicle body while maintaining lifting capability.
Solution Approach 2:
The carrier employs dynamic rotation mechanisms where the lever bar and arm bar can rotate through controlled angles. The system dynamically adjusts the position of each bar to navigate around the vehicle's curved surfaces, preventing contact while enabling vertical lifting operations.
2Ease of operation
If the base rail end protrudes sufficiently outward to allow vertical rotation, then the lifting function is improved, but the appearance is compromised
Solution Approach 1:
The carrier components are designed to nest within each other when not in use. The arm bar nests within the lever bar, and the lever bar nests within the base rail structure, creating a compact appearance that does not protrude significantly from the vehicle body while maintaining full rotational capability when deployed.
Solution Approach 2:
The system dynamically transitions between a compact nested state for aesthetic purposes and an extended state for operational purposes. The controlled rotation allows the bars to extend only when needed for loading, minimizing visual impact during normal vehicle operation.
3Object-affected harmful factors
If the arm bar is positioned high to avoid contact, then contact is prevented, but heavy loads become difficult to load
Solution Approach 1:
The multi-segment design with independent rotation capabilities allows the arm bar to follow an optimized trajectory that maintains sufficient clearance from the vehicle body while enabling the bar to reach lower positions for loading heavy loads.
Solution Approach 2:
The dynamic rotation mechanism enables the arm bar to adjust its position vertically and angularly, allowing it to reach optimal loading positions for heavy cargo while maintaining safe clearance from the vehicle body throughout the motion path.
4Device complexity
If the carrier is designed for side loading only, then the structure is simple, but long cargoes cannot be loaded efficiently
Solution Approach 1:
The carrier is designed with multi-functional capabilities, allowing it to accommodate both side loading and rear loading of long cargoes. The rotatable arm bar and lever bar can be positioned at various angles to accommodate different cargo orientations and loading approaches, making the system universally applicable to diverse cargo types.
Solution Approach 2:
The dynamic rotation joints enable the carrier to adapt its configuration for different loading scenarios. The system can transition between side-loading configuration and rear-loading configuration, providing versatility for various cargo types without requiring multiple specialized carriers.
Data Source
AI summary
The present invention relates to a carrier installed on the roof of a vehicle such as a car or SUV and to a lifting multi-joint roof carrier for a vehicle, which is used to easily load or unload an object on or from a vehicle roof. The present invention relates to a lifting multi-joint roof carrier for a vehicle, which is vertically movable up, rotatable, etc. in a process of loading or unloading cargo, to allow an object to be smoothly loaded or unloaded and have a structure with an aesthetically pleasing appearance.