Cabin-Mounted Detection Layout to Reduce Work Machine Blind Spots
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Solution Overview
Problem
Existing work machines have blind spots for detection portions due to the placement of detection components behind cabins, which can obstruct the view of structures like exhaust tail pipes.
Innovation Solution
The work machine incorporates a first and second detection portion supported by the boarding room, positioned on adjacent side surfaces of the boarding room with a corner portion interposed between them, reducing blind spots by placing them closer to the inner side of the machine body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection portion is provided behind the cabin, then the detection portion is supported in a vibration-proof manner, but blind spots occur behind the cabin itself or around the cabin structure
Solution Approach 1:
The detection portion is relocated from a single position behind the cabin to multiple positions on the front surface of the cabin, specifically on both the left and right sides. This spatial distribution across different dimensions allows each detection portion to cover different angular ranges, collectively eliminating blind spots while maintaining vibration-proof support through the cabin structure.
Solution Approach 2:
The detection system is divided into multiple detection portions positioned at different locations on the cabin's front surface. Each detection portion independently covers a specific detection range, and together they provide comprehensive coverage. This segmentation allows the system to eliminate blind spots by distributing detection functions across multiple positions rather than relying on a single detection point.
2Loss of information
If the detection portion is positioned to reduce blind spots, then detection coverage is improved, but the detection portion may be more exposed to vibration and impact from the machine body
Solution Approach 1:
The cabin structure serves as an intermediary between the detection portion and the machine body. By mounting the detection portions on the cabin's front surface rather than directly on the machine body, the cabin acts as a vibration-isolating intermediary. This allows the detection portions to be positioned for optimal detection coverage while the cabin's vibration-proof support characteristics protect them from direct exposure to machine body vibrations and impacts.
Data Source
AI summary
To provide a work machine that easily reduces a blind spot for a detection portion. The work machine includes a machine body, a first detection portion, and a second detection portion. The machine body includes a boarding room in which an occupant can board. The first detection portion and the second detection portion are supported by the boarding room and each detect a detection target around the machine body. Each of the first detection portion and the second detection portion is provided on a corresponding one of a pair of a side surfaces are adjacent to each other with one corner portion of the boarding room interposed therebetween in a plan view.