Truck Front End Body Side Modules Assembly

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Solution Overview

Problem

The existing methods for constructing a truck front end with a driver's cab are inefficient and costly due to complex assembly processes and require numerous individual components, leading to high production and assembly outlays.

Innovation Solution

The method involves prefabricating right-hand and left-hand body side modules that extend from the front to the rear of the cab, integrating functional parts, and mounting them to the frame or cab, which eliminates the need for a conventional bumper and allows for simplified assembly by integrating the radiator with underrun protection, using a lattice frame support structure and outer skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional multi-part structure with numerous individual components is used in the lower body side area, then the structural functionality is comprehensive, but the assembly work and production cost are considerable

Engineering Contradiction:
Improveassembly workVSAvoidnumber of individual components
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines multiple individual components (fenders, spray protection devices, headlights, entrances, etc.) into a single pre-assembled body side module. This module includes a support structure with outer skin and integrates various functional parts, eliminating the need for complex line assembly of numerous separate components and reducing both assembly work and production cost.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The body side module is pre-assembled before final vehicle assembly. Functional parts are installed and integrated into the support structure in advance, allowing the module to be manufactured independently and then easily assembled during line assembly, significantly reducing the assembly cycle time and complexity.

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If a conventional bumper is used in the front end construction, then the protective function is provided, but the cost and weight increase

Engineering Contradiction:
Improveprotective functionVSAvoidweight
Core Design Contradiction:
Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The radiator structure is designed to serve multiple functions: it provides the traditional radiator function for engine cooling, acts as a protective element in the front end, and integrates with the underrun protection. This multi-functionality eliminates the need for a separate bumper, reducing both weight and cost while maintaining protective capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the radiator, radiator grille, and underrun protection into an integrated assembly where the radiator structure itself provides protective functions. This combination eliminates the conventional bumper while maintaining the necessary protection, thereby reducing weight and material cost.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If body side modules are completely pre-assembled with functional parts integrated, then the line assembly cycle time is reduced, but the manufacturing complexity of individual modules increases

Engineering Contradiction:
Improveline assembly cycle timeVSAvoidmodule integration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The vehicle body is divided into modular body side modules that can be manufactured independently. Each module is a complete, self-contained unit with integrated functional parts, allowing parallel production and simplifying the final assembly process. The segmentation enables pre-assembly outside the main production line, reducing line assembly cycle time despite the complexity of individual module manufacturing.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2206638B1Method for assembling a front end of a truck with driver cab and front end of a truck
Publication Date: 2012.08.29 MAN TRUCK & BUS SE
  • EP2206638B1 patent drawingFigure 1~2

AI summary

The method involves prefabricating right-sided and left-sided body side modules (7) as components of a body (1), where the modules extend in an installed condition of a body front (4) up to a rear edge (5) of a driving cab (2). Headlights are built in the body side modules, and a mudguard and a wheel housing (9) are partially integrated. The pre-mounted body-side modules are fixed to a chassis frame or the driving cab for completion of the body. The headlights and/or mudguards and/or manholes and/or air ducts are installed as functional parts during prefabrication of the modules.