Working Vehicle Mudguard Attached to Radiator Frame

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Solution Overview

Problem

Conventional working vehicles, such as riding grass-mowers, face challenges in simply and compactly attaching mudguards to protect radiators from mud splashes, leading to potential overheating issues and increased mudguard size.

Innovation Solution

The design incorporates a mudguard attached to a radiator-attaching frame, with the mudguard positioned between the wheels and radiator, and part of the tank arranged above the wheels to reduce mudguard size, featuring a slanting posture to allow mud to naturally fall off and a drain to prevent oil or fuel discharge obstruction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the mudguard is arranged between the left front wheel and the radiator to protect the radiator from mud splashes, then the radiator protection is improved, but the mudguard size becomes large and the attachment becomes complex

Engineering Contradiction:

Improvemud splash protectionVSAvoidmudguard attachment complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The mudguard is merged with the radiator attaching frame structure. The mudguard utilizes the existing frame components (vertical plate, horizontal plate, and diagonal plate) that are already part of the radiator mounting system, eliminating the need for a separate mudguard attachment structure and reducing overall complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The radiator attaching frame serves dual functions: it mounts the radiator to the vehicle body and simultaneously acts as the mudguard structure. This multi-functional design eliminates the need for separate dedicated mudguard components, simplifying the overall structure while maintaining protection functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If the mudguard is arranged between the left front wheel and the radiator to protect the radiator, then the radiator protection is improved, but the attachment process becomes non-compact and complex

Engineering Contradiction:

Improvemud splash protectionVSAvoidmudguard attachment ease

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The mudguard is divided into three functional plates (vertical, horizontal, and diagonal) that can be independently manufactured and then assembled together. This segmentation allows for easier manufacturing of individual components and simpler assembly processes while maintaining the overall protective function.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If the mudguard is made large to ensure complete radiator protection from mud, then the protection coverage is improved, but the mudguard size becomes excessively large

Engineering Contradiction:

Improvemud splash protectionVSAvoidmudguard area

Core Design Contradiction:

Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

Instead of using a uniformly large mudguard, the design employs three plates with different sizes and orientations positioned at specific locations. The vertical plate provides protection at the rear, the horizontal plate covers the lower section, and the diagonal plate addresses the splash zone from the wheel. This localized approach provides adequate protection only where needed, reducing the total area.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The mudguard transitions from a traditional single-plane design to a three-dimensional configuration using multiple plates oriented in different directions (vertical, horizontal, and diagonal). This spatial arrangement provides comprehensive protection coverage without requiring excessive area in any single dimension, as the plates work together in three-dimensional space to block mud splashes from multiple angles.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 configuration allows for a simple, compact, and effective attachment of the mudguard, ensuring better protection of the radiator from mud and preventing interference with the farm-field, while maintaining smooth oil or fuel discharge.

Implementation Method 1

the mudguard (400) has a posture slanting in the front-and-rear direction, the most part of the mud which has adhered to the mudguard (400) can be made to naturally fall down

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentEP3081419B1Working vehicle

Publication Date: 2018.03.14 ISEKI & CO LTD

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Figure 3A~3B

AI summary

A working vehicle comprising, a left front wheel (5310L) and a right front wheel (5310R), and a radiator (200) which is arranged behind one of the left front wheel (5310L) and the right front wheel (5310R), characterized in that the working vehicle comprises, a mudguard (400) which protects the radiator (200), and a radiator-attaching frame (300) which attaches the radiator (200) to a vehicle-body (5000), wherein in a case where the radiator (200) is arranged behind the left front wheel (5310L), the mudguard (400) is arranged between the left front wheel (5310L) and the radiator (200), in a case where the radiator (200) is arranged behind the right front wheel (5310R), the mudguard (400) is arranged between the right front wheel (5310R) and the radiator (200), and the mudguard (400) is attached to the radiator-attaching frame (300).