このページは国際安全衛生センターの2008/03/31以前のページです。
国際安全衛生センタートップ > 事例研究 > Cases Involving Construction Vehicles

What kind of accident is about to happen?
The concrete casting is finished, and a worker is cleaning the inside of the hopper on a concrete pump truck.
To remove the concrete that has solidified in the hopper, the worker has brought the water hose closer to spray water on the equipment while the agitator is still spinning.
Can you predict what's about to happen?


Look what happened!
After bringing the hose near the hopper while the agitators were still spinning, the sleeve of the worker's uniform got caught on one of the agitator blades. The worker got caught in the machine and was injured.

Tips for preventing similar accidents
1. Be sure to turn off the agitator when cleaning the inside of a hopper on a concrete pump truck.
2. Wear all clothing properly.
3. Be sure that all workers are thoroughly aware of the proper procedures for cleaning the inside of a hopper.

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