For some types of heavy machinery, an operator cannot simply flip a switch to turn the machine on. There are two controls that they have to use simultaneously. For example, there may be two buttons situated roughly three feet apart, and the operator has to push both buttons at the same time.
Systems like this are often less efficient and can slow down the flow of production. So why are they used? It’s usually a safety issue.
Preventing accidental injuries
The goal of a two-button control system is to keep the operator’s hands away from the working surface. This prevents them from accidentally injuring themselves with the device.
For example, consider a worker who places sheets of metal onto a hydraulic press. The press then forms the metal into parts that are needed further down the assembly line.
If the press had just a single-button control, the worker would theoretically be at risk every time they activated it. Even if they tried to remember to remove both of their hands, all it would take is one oversight or mistake. Perhaps a worker would try to hold a metal sheet in place while activating the press, or they could become complacent and absentmindedly forget to remove their hand. This could lead to severe crush and amputation injuries.
With a two-button control system, it’s impossible for the worker to make this mistake. If they accidentally leave their hand on the operating surface, they cannot activate the hydraulic press. So, while this may technically be less efficient, it is far safer for anyone using that device.
This system helps reduce some of the risks that workers often face on the job. Those who have been injured need to know about all of the legal options they have.