Dump Truck Front Bumper Base for Stronger Modular Mounting

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Solution Overview

Problem

The existing design of dump trucks faces challenges in standardizing the vehicle body frame due to the need for different front bumpers corresponding to various devices such as standard radiators, special radiators, and pantographs, which complicates the attachment process and affects the strength of the joint between the front bumper and the main frame.

Innovation Solution

The dump truck design incorporates a vehicle body frame with a front bumper that features a base fixing section, allowing multiple types of device mounting bases to be selectively fixed. This enables the attachment of various devices to the front bumper without requiring separate front bumpers for each device type, thus standardizing the vehicle body frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a front bumper corresponding to each device type is replaceably attached to the main frame, then different devices (standard radiator, special radiator, pantograph) can be mounted, but the joint strength between the front bumper and main frame becomes insufficient due to large lifting loads

Engineering Contradiction:
Improvedevice mounting flexibilityVSAvoidjoint strength between front bumper and main frame
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The front bumper assembly is segmented into two parts: a standard front bumper fixed to the main frame with sufficient strength, and a device mounting base that can be selectively attached to the front bumper. This segmentation allows the front bumper structure to be optimized for strength while the device mounting base provides adaptability for different devices.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A device mounting base is introduced as an intermediary component between the front bumper and the various devices (radiators, pantograph). This base can be selectively fixed to the front bumper's base fixing section, allowing different devices to be mounted without directly attaching to the main frame, thus preserving joint strength while enabling device versatility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If a front bumper is fixed non-replaceably or in a complex manner for each device type, then joint strength is ensured, but the vehicle body frame cannot be standardized and manufacturing complexity increases

Engineering Contradiction:
Improvejoint strength between front bumper and main frameVSAvoidvehicle body frame configuration complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The front bumper is designed as a universal component with a standardized base fixing section that can accommodate multiple types of devices through the use of different device mounting bases. This universal design allows the same front bumper structure to be used across different dump truck configurations, reducing vehicle body frame complexity while maintaining joint strength.

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

Solution Approach 2:

The device mounting base is designed to be selectively fixable and removable from the front bumper's base fixing section. This dynamic configuration allows the device mounting base to be changed according to different device requirements, enabling standardization of the front bumper while accommodating various device types through simple base replacement rather than complex frame modifications.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If different front bumpers are used for different device types, then device-specific requirements are met, but manufacturing costs increase and standardization is lost

Engineering Contradiction:
Improvedevice-specific configuration capabilityVSAvoidmanufacturing cost and standardization
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The system is segmented into a standardized front bumper component and interchangeable device mounting bases. This segmentation allows the front bumper to be manufactured once in standard quantities, reducing manufacturing costs, while different device mounting bases can be produced for specific device types, maintaining device-specific capabilities without requiring multiple front bumper variants.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A universal front bumper design with a standardized base fixing section is implemented, which can accommodate multiple device types through interchangeable device mounting bases. This universality enables standardization of the front bumper manufacturing process, reducing costs and simplifying production, while still meeting device-specific requirements through the selectable device mounting bases.

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

Data Source

PatentEP4566922A1Dump truck
Publication Date: 2025.06.11 HITACHI CONSTRUCTION MACHINERY CO LTD
  • EP4566922A1 patent drawingFigure 1
  • EP4566922A1 patent drawingFigure 2
  • EP4566922A1 patent drawingFigure 3

AI summary

The vehicle frame (16) comprises a left frame (18), a right frame (19), a front frame (20) connecting the front end of the left frame (18) and the front end of the right frame (19), and a front bumper (28) fixed to the front side of the front frame (20), provided with a hook (28D) for lifting and mounted with device (radiator (11), radiator (42), pantograph support (55)). The front bumper (28) is mounted with a base fixing section (29) to which multiple types of device mounting bases ((30), (44), (56)) corresponding to the types of device (radiator (11), radiator (42), pantograph support (55)) are selectively fixed.