Vehicle Crane Mounting Frame With Bolt-On Corrosion Protection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for mounting cranes on vehicles, such as tipper vehicles, result in damage to painted surfaces, increased corrosion susceptibility, and prolonged assembly times due to welding and complex rework, with inadequate corrosion protection and assembly efficiency.

Innovation Solution

An auxiliary frame with longitudinal beams and crane side plates featuring hole patterns for variable positioning, along with a cross member with grooves for blocking, allows for pre-painting assembly of the subframe and crane, eliminating the need for subsequent welding and enhancing corrosion protection while enabling flexible assembly of various crane types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to attach crane side plates to subframe, then strong connection is achieved, but paint surface is destroyed and corrosion susceptibility increases

Engineering Contradiction:

Improveconnection strengthVSAvoidcorrosion susceptibility

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The connection system is segmented into multiple attachment points via hole patterns, allowing distribution of connection loads across multiple locations rather than concentrated welding zones, enabling mechanical fastening that preserves paint surface integrity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Hole patterns are pre-drilled and prepared on both subframe and crane side plates before final assembly, allowing components to be painted completely before mounting, thus preserving paint surfaces while maintaining strong mechanical connections through subsequent bolting

Inventive Principle:

Principle #10Preliminary action

2Reliability

If welding and rework are performed during crane assembly, then secure mounting is achieved, but assembly time is prolonged

Engineering Contradiction:

Improvemounting securityVSAvoidassembly time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

All necessary holes for mounting are pre-drilled and prepared on subframe, crane side plates, and cross members before final assembly, eliminating the need for time-consuming on-site drilling or welding operations and enabling rapid secure mounting through simple bolting operations

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention replaces welding (thermal/mechanical process requiring time and skill) with mechanical fastening systems using pre-prepared hole patterns, significantly reducing assembly time while maintaining mounting security through standardized bolted connections

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If crane is mounted before final painting, then assembly is simplified, but paint surface damage occurs and corrosion protection is reduced

Engineering Contradiction:

Improveassembly simplicityVSAvoidpaint surface damage

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

All mounting holes are pre-drilled and prepared in advance on all components, and components are completely painted before assembly, allowing the painting process to be completed without interruption by crane mounting operations, thus preserving paint surface integrity while maintaining assembly simplicity

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The assembly process is segmented into independent paintable components (subframe, crane side plates, cross members) with pre-prepared mounting interfaces, allowing each component to be painted separately to completion before final assembly, eliminating paint surface damage while keeping the overall process simple

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4089044B1Method for installing a crane on a vehicle

Publication Date: 2024.07.10 FRANZ XAVER MEILLER FAHRZEUG UND MASCHINENFABRIK GMBH & CO KG

Figure 1
Figure 2~3
Figure 4

AI summary

The present invention relates to an arrangement (10) for mounting a crane on a vehicle with a chassis, comprising an auxiliary frame (12) which defines a longitudinal direction (L) of the arrangement (10) and a lateral direction (B) perpendicular thereto, and which includes two longitudinal beams (14, 16) which in turn each comprise a side section (14a, 16a) and a top chord (14b, 16b) and are configured to extend substantially along a longitudinal direction (L) of the vehicle, two crane side plates (18, 20) which are each configured to be connected to one of the longitudinal beams (14, 16) and the chassis and comprise at least two clamp pockets (24) for mounting crane clamps (38) of the crane (36), wherein the side sections (14a, 16a) of the longitudinal beams (14, 16) of the auxiliary frame (12) and the crane side plates (18, 20) have respective hole patterns (14c, 16c, 22) include, by means of which the crane side plates (18,20) on the longitudinal beams (14, 16) at a plurality of positions, and at least one crossbeam (32) for blocking the crane (36), which for this purpose is provided on its upper side with at least one groove (34a, 34b) which is provided for receiving at least one counter element (40) provided on the crane (36), wherein the upper chords (14b, 16b) of the longitudinal beams (14, 16) of the auxiliary frame (12) and the at least one crossbeam (32) comprise respective hole patterns (14d, 16d, 32a) by means of which it is possible to bolt the at least one crossbeam (32) to the longitudinal beams (14, 16) at a plurality of positions.