Modular Vehicle Hardtop Assembly for Lower Transport Volume
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Solution Overview
Problem
Traditional monolithic hardtop roof assemblies are difficult to transport and store due to their large, intact designs, leading to supply chain, transport, and storage challenges.
Innovation Solution
A multi-component hardtop roof assembly comprising a top roof frame, side roof frames, and a back roof frame that can be detached and reassembled, with each component designed for coupling to the vehicle chassis and featuring a pivotal rear window, allowing for on-site construction and efficient packaging for transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a monolithic hardtop roof assembly is used, then the structural integrity and aerodynamic profile are improved, but the difficulty of transport and storage increases
Solution Approach 1:
The hardtop roof assembly is divided into multiple separate components including a roof frame, side roof panels, and a rear roof panel that can be transported and stored independently, then assembled at the assembly plant to form the complete aerodynamic structure
2Productivity
If a monolithic hardtop roof assembly is manufactured off-site, then the manufacturing efficiency is improved, but the transport and storage requirements increase
Solution Approach 1:
The roof assembly is segmented into multiple components that can be manufactured separately at efficient off-site facilities, reducing the volume and complexity of each individual manufacturing operation while maintaining overall production efficiency
Solution Approach 2:
The assembly process transitions from a single large-component assembly to a multi-component assembly process, adding the dimension of modular assembly operations that reduce transport volume while maintaining manufacturing efficiency
3Volume of moving object
If a multi-component hardtop assembly is used, then the transport and storage efficiency are improved, but the assembly complexity increases
Solution Approach 1:
The roof is segmented into transportable components that simplify logistics, with standardized connection interfaces that manage assembly complexity through modular design rather than increasing it
4Volume of moving object
If a multi-component hardtop assembly is assembled on-site, then the transport requirements are reduced, but the assembly time increases
Solution Approach 1:
Components are prepared and pre-assembled to some degree before arrival at the assembly plant, with pre-installed connection interfaces and components that require minimal assembly operations, reducing the time penalty of multi-component assembly
Data Source
AI summary
A vehicle hardtop assembly is described. The vehicle hardtop assembly features a top roof panel, a back panel frame, a first side panel, and a second side panel. The back rear frame is configured to attach to the top roof panel via a first set of fasteners. The back rear frame includes a back rear panel oriented with an offset angle ranging between ten and twenty degrees from vertical and a rear window pivotally coupled to the back rear panel. The first side panel is configured to attach to the top roof panel via a second set of fasteners. The second side panel is configured to attach to the top roof panel via a third set of fasteners,