Work Lamp Layout for Working Machines Exposed to Branch Contact
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Solution Overview
Problem
Conventional working machines with work lamps protruding from the front end of the cabin are prone to illumination failure due to external object contact and unnecessary illumination of outside areas.
Innovation Solution
A working machine design featuring work lamps positioned lower than the operator's seat, with a front work lamp provided at the front portion of the machine body and additional lamps strategically placed to illuminate the sides and rear, all housed within protective brackets to prevent external contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If work lamps are provided to protrude from the front end of the upper portion of the cabin, then the work lamps can illuminate the front of the machine body from high positions, but the work lamps may contact external objects such as branches and cause illumination failure
Solution Approach 1:
The patent changes the vertical position dimension by providing work lamps at the lower portion of the machine body instead of the upper portion. This dimensional shift allows the lamps to illuminate the work area effectively while avoiding contact with external objects like tree branches that are located at higher positions.
Solution Approach 2:
The patent inverts the conventional arrangement by placing work lamps at the lower portion rather than the upper portion of the machine body. This inversion resolves the contradiction by maintaining illumination capability while eliminating the vulnerability to external object contact.
2Illumination intensity
If work lamps are provided at high positions of the cabin, then the work lamps can illuminate the front of the machine body, but the work lamps may unnecessarily illuminate the outside of the work area
Solution Approach 1:
The patent applies local quality by positioning work lamps at the lower portion of the machine body, which allows the illumination to be concentrated on the specific work area rather than dispersing to unnecessary external areas. This localized positioning improves illumination efficiency and reduces energy waste.
3Ease of operation
If work lamps are provided at the front end of the upper portion of the cabin, then the work lamps can illuminate the work area, but the work lamps are vulnerable to contact with external objects
Solution Approach 1:
The patent resolves this contradiction by changing the vertical dimension of lamp placement from upper to lower portion of the machine body. This dimensional change maintains illumination effectiveness for the work area while eliminating exposure to external objects like branches that typically occupy higher spatial zones.
Data Source
AI summary
A working machine includes a machine body; a traveling device provided at a lower portion of the machine body; a working device provided at a front portion of the machine body; an operator's seat mounted on the machine body; and a work lamp to illuminate a work area of the working device. The work lamp includes a front work lamp to illuminate front of the machine body. The front work lamp is provided at the front portion of the machine body, at a position lower than a seat surface of the operator's seat.