Construction machine
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Solution Overview
Problem
The operability of switches in construction machines is poor due to the need for operators to bend forward or remove their arm from the armrest to access the display device, leading to inefficient operation.
Innovation Solution
A switch panel is placed between the right armrest and the right operating lever on the seat right side console, allowing operators to maintain their arm on the armrest while operating switches, improving accessibility and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If switches are placed on the display device, then the display device can be integrated, but the operator must bend forward or remove arm from armrest reducing operability
Solution Approach 1:
The switch panel is separated from the display device and placed on the seat right side console. This segmentation allows the display device to remain integrated while the switches are positioned in a location that does not require the operator to bend forward or remove their arm from the armrest, thus resolving the contradiction between device integration and ease of operation.
Solution Approach 2:
The seat right side console acts as an intermediary structure that carries the switch panel. This intermediary placement allows switches to be accessible without compromising the integrated display device design, as the console provides a separate mounting location that is naturally within the operator's reach while maintaining proper posture.
2Area of stationary object
If switches are placed on the display device, then space is saved, but operator fatigue increases due to bending forward
Solution Approach 1:
By segmenting the control interface into two parts - the display device and the switch panel - the invention places switches on the seat right side console rather than integrating them into the display device. This maintains compact cabin space utilization while eliminating the need for operators to bend forward, thereby reducing fatigue.
3Device complexity
If switches are placed on the display device, then the design is simplified, but accessibility is reduced requiring arm removal from armrest
Solution Approach 1:
The control system is segmented into the display device and a separate switch panel mounted on the seat right side console. This segmentation maintains design simplicity while dramatically improving switch accessibility, as the switches are now positioned within easy reach of the operator's hand without requiring arm removal from the armrest.
Data Source
AI summary
A construction machine includes a cabin, an operator seat provided in the cabin, a seat right side console provided on the right side of an operator to be seated in the operator seat, and extending along a front-to-back direction of the operator seat, a right operating lever provided at the front of the seat right side console, a switch panel provided on the seat right side console, and a right armrest extending from the back side toward the front of the operator seat, and placed above the seat right side console. The switch panel is placed between the right armrest and the right operating lever.