Adhesive Cab Bonding for Emergency Vehicle Assembly

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Solution Overview

Problem

Conventional methods for assembling emergency vehicles, such as fire engines, are time-consuming, expensive, and require labor-intensive screwing or welding to connect the driver's cab and cab module, lacking a cost-effective and efficient solution for quick assembly.

Innovation Solution

The use of a fastening device with a frame-like fastening flange that features adhesive connections between the driver's cab and cab module, allowing for easy and rapid assembly by gluing or screwing, with the option for additional positive connections like screws or rivets, enabling compatibility with different truck manufacturers' cabs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional screwing or welding methods are used to connect the driver's cab and cab module, then the connection strength and reliability are improved, but the assembly time and manufacturing cost increase significantly

Engineering Contradiction:

Improveconnection reliabilityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the conventional mechanical connection methods (screws, welding) with an adhesive bonding system. The adhesive connection means bonds the driver's cab and cab module through chemical adhesion rather than mechanical fastening, eliminating the need for time-consuming screwing or welding operations while maintaining connection reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of connection methodology from mechanical (screws/welding) to chemical (adhesive bonding). This parameter change transforms the assembly process from a multi-step mechanical operation to a single-step bonding operation, dramatically reducing assembly time while preserving structural integrity.

Inventive Principle:

Principle #35Parameter changes

2Strength

If conventional screwing or welding methods are used to connect the driver's cab and cab module, then the connection strength is improved, but the manufacturing cost and complexity increase

Engineering Contradiction:

Improveconnection strengthVSAvoidmanufacturing simplicity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The adhesive connection means replaces complex mechanical fastening systems (multiple screws, welding equipment, fixtures) with a simpler adhesive application system. This substitution maintains connection strength while dramatically simplifying the manufacturing process and reducing equipment requirements.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent merges the connection function into a single integrated adhesive bonding operation rather than requiring separate mechanical fastening steps. This consolidation of the connection process into one operation simplifies manufacturing while maintaining the necessary connection strength between components.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If a separate fastening device with frame-like fastening flange is used, then the adaptability and ease of assembly are improved, but the device complexity increases

Engineering Contradiction:

Improvecompatibility with different cabsVSAvoidfastening device structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The frame-like fastening flange is designed as a universal connection interface that can accommodate different driver's cab and cab module configurations. The flange structure provides standardized bonding surfaces that work across various vehicle types, enhancing adaptability while the modular design keeps the added complexity manageable.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fastening device is segmented into a separate, modular frame-like flange component that can be independently manufactured and attached. This segmentation allows the fastening function to be added without redesigning the entire vehicle structure, providing adaptability while controlling complexity through modular architecture.

Inventive Principle:

Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach reduces assembly time and weight, providing a lightweight, cost-effective, and adaptable method for connecting the cab components, facilitating quicker production and maintenance while ensuring a secure bond.

Implementation Method 1

at least one adhesive connection is provided for connecting the driver's cab and the cabin module

Methodology Applied

Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentEP3558796B1Intervention vehicle

Publication Date: 2022.08.10 ALBERT ZIEGLER GMBH & CO KG

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AI summary

In an intervention vehicle, in particular a fire engine, comprising a driver's cab (13) and a cab module (24) which is connected to the driver's cab (13) and is located therebehind in the longitudinal direction (20) of the vehicle, at least one adhesive bond is provided for connecting the driver's cab (13) to the cab module (24).