Prefabricated Cab Front Module Assembly via Segmentation
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Solution Overview
Problem
The existing methods for assembling driver's cab components in commercial vehicles face challenges due to limited opening sizes, leading to increased risk of damage and compromised ergonomics during assembly, as large components must be introduced through restricted openings, necessitating compromises in assembly ergonomics and efficiency.
Innovation Solution
A driver's cab front module is prefabricated and preassembled with a vertically aligned front wall structure and a horizontally aligned partial floor structure, including attachment areas for load-bearing attachment to the main cab floor, allowing for improved assembly ergonomics and efficiency by enabling the inclusion of essential components like steering systems and underrun protection, and facilitating the integration of additional equipment such as air ducts and sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If large individual components or pre-assembled modules are inserted through existing openings in the structural cell, then the cab can be completed with attached components, but the risk of damage to the cab from potential impacts during insertion increases and assembly ergonomics are compromised
Solution Approach 1:
The cab is divided into a structural cell and a separate front module that can be manufactured independently and then assembled. This segmentation allows the front module to be pre-assembled with components in a controlled environment and then installed as a complete unit through the windshield opening, reducing damage risk during assembly.
Solution Approach 2:
The front module is pre-assembled with dashboard, wiring harness, steering column, and other components before installation into the structural cell. This preliminary assembly allows for quality control and component integration in a controlled setting, reducing the risk of damage during final installation.
2Ease of manufacture
If large individual components or pre-assembled modules are inserted through existing openings in the structural cell, then the cab can be completed with attached components, but assembly ergonomics are compromised due to spatial constraints
Solution Approach 1:
The cab assembly is segmented into the structural cell and a separate front module. This allows the front module to be assembled independently with proper tooling and workspace, improving ergonomics during manufacturing, and then installed as a complete unit through the windshield opening.
Solution Approach 2:
The front module is pre-assembled with all necessary components (dashboard, wiring, steering column) before installation. This preliminary action allows workers to assemble components in an ergonomic setting with appropriate equipment, rather than attempting to install large components through constrained openings in the structural cell.
3Stability of the object's composition
If the cab is constructed with a closed structural cell first, then components are attached to the outside or inside, but the dimensions of components are restricted by the limited size of openings in the supporting structure
Solution Approach 1:
The cab is segmented into a closed structural cell and a separate front module. This segmentation allows the structural cell to maintain its integrity while the front module, which can accommodate larger components, is assembled separately and installed through the windshield opening.
Solution Approach 2:
The front module is designed to be assembled in a separate dimensional space (outside the structural cell) and then installed through the windshield opening. This dimensional approach allows for larger component sizes that would not fit within the constrained openings of the closed structural cell.
Data Source
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AI summary
The invention relates to a cab front module (14) for a cab (10) of a commercial vehicle, wherein the cab front module (14) is prefabricated and pre-assembled. The cab front module (14) comprises a cab front wall structure (24) and a cab partial floor structure (26) connected to the cab front wall structure (24). The cab partial floor structure (26) partially forms a cab floor and has a support structure (32) with at least one attachment area (34) for load-bearing attachment of the cab front module (14) to a further cab partial floor structure (16) of the cab (10). Advantageously, further essential components of the cab (10) can thus be incorporated into the prefabricated and pre-assembled cab front module (14), in particular those that are at least partially attached to or within the cab partial floor structure (26).