Tractor Handrail Frame Lamp Integration

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Solution Overview

Problem

Existing tractor designs for getting on and off areas lack efficient integration of handrails and lamps, leading to discomfort and structural complexity, with lamps and preventive members not being effectively supported, and causing potential soil intrusion and obstructed views.

Innovation Solution

A tractor design featuring a handrail frame with a handrail part, a lamp attached to the handrail frame, a harness supported along the handrail frame, and a mounting member for the lamp, along with a preventive member to prevent soil intrusion, all integrated to simplify the structure and enhance operator comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the lamp is provided at the front part of the driving part separately from the handrail, then the lamp can illuminate the getting on/off area, but the structure becomes complex and the handrail cannot be effectively utilized

Engineering Contradiction:
Improveillumination of getting on/off areaVSAvoidstructural complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The lamp is integrated with the handrail frame, combining two separate components (handrail and lamp) into a single unified structure. This merging eliminates the need for separate mounting structures while maintaining both the support function of the handrail and the illumination function of the lamp

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The handrail frame is designed to serve multiple functions: providing hand support for operators during getting on/off operations and simultaneously serving as the mounting structure for the lamp. This multi-functionality reduces the overall number of components needed in the system

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

2Ease of manufacture

If the harness is not properly supported along the handrail frame, then installation is simpler, but the harness moves and causes discomfort to the operator

Engineering Contradiction:
Improveinstallation simplicityVSAvoidoperator comfort
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The handrail frame structure itself provides the support function for the harness, eliminating the need for separate complex mounting mechanisms. The harness is supported along the handrail frame in a manner that is both simple to install and effective at preventing movement during operation

Inventive Principle:
Principle #25Self-service

3Device complexity

If the handrail part and harness are not separated, then the structure is simpler, but the operator feels discomfort when holding the handrail

Engineering Contradiction:
Improvestructural simplicityVSAvoidoperator comfort
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The handrail frame is segmented into distinct functional zones: the handrail part for operator contact and the harness support portion for cable management. This segmentation allows the harness to be positioned away from the operator's hands while maintaining structural integration, preventing discomfort during operation

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3470262B1tractor
Publication Date: 2021.03.10 KUBOTA CORP
  • EP3470262B1 patent drawingFigure 1
  • EP3470262B1 patent drawingFigure 2
  • EP3470262B1 patent drawingFigure 3

AI summary

[Problem to be Solved] To provide a tractor having a handrail part at the front part of the getting on/off area and a lamp by effectively utilizing the handrail part when the lamp is provided at the left and right front part of the driving part. [Solution] The tractor comprises a handrail frame (15) provided at the front part of the getting on/off area on the right or left side of the driving part and provided with a handrail part (19) on an upper part thereof, a lamp (26) attached to the handrail frame (15), a harness (30) disposed along the handrail frame and connected to the lamp, and a mounting member (31) for mounting the harness (30) along the handrail frame (15).