How can the design of the control handle of the positioning winch take into account ergonomics and improve the comfort of operation?
Publish Time: 2024-12-16
In the busy operation scene on the ship deck, the positioning winch control handle is the key link for direct interaction between the crew and the equipment. Its design follows the principles of ergonomics, which is crucial to improving the comfort of operation and ensuring accurate and efficient operation.
From the perspective of shape, the handle should fit the natural grip posture of the human hand. The design with a slight arc and moderate thickness is similar to the feeling of holding the tool tightly every day, so that the palm and fingers of the crew can be naturally wrapped to avoid excessive tension or spasm of the hand muscles caused by long-term operation. For example, the thumb, index finger and middle finger are moderately concave in the force area, which fits the curvature of the finger joints, so as to facilitate precise force control of winch start and stop, speed adjustment and other actions, just like a tailor-made "control partner" to reduce the accumulation of hand fatigue.
Operation force feedback is a key link. The resistance mechanism is designed reasonably, and the hand feel is smooth and free of jamming when starting, which can overcome the initial static friction force moderately and prevent muscle strain caused by excessive force; during operation, as the speed is adjusted or the load changes, the feedback force of the handle is gradual and stable, such as simulating the damping feeling of real mechanical transmission, so that the crew can "predict" the working condition of the winch by hand feeling alone, and can detect and adjust in time when encountering abnormal resistance, avoiding dangers such as overload, ensuring natural and smooth human-machine interaction, and the crew does not need to work hard to find the right degree of operation.
Layout and function integration are related to convenience. The commonly used function keys are reasonably distributed around the handle, such as the emergency brake is within reach, and the thumb responds instantly with a light press, and the moment of life and death will never be delayed; the speed knob is in a conspicuous position, and the winch speed can be accurately changed by fine-tuning with fingers, which is in line with the logical order of operating habits, reducing the frequent switching of eyes between the handle and the operating area, allowing the crew to focus on the lifting process and reduce visual fatigue. At the same time, clearly marked textures and different tactile materials distinguish functional areas, and blind operations can be accurate, greatly improving operational efficiency and comfort in complex sea conditions, making the positioning winch easy to control and the crew to control easily, contributing to the safe and efficient endurance of ship operations.
