WorkSafe is issuing a safety alert highlighting the hazards and risks associated with shear points on amusement rides.

Background

WorkSafe has recently been notified of an incident involving a large rotating amusement ride at the Royal Melbourne Show.

The ride has harness release mechanism that consists of a metal plate installed on the arm of the ride behind the seats and a sensor block located next the seat.

When the ride is going, the seats are free to rotate clockwise or anticlockwise independently of the arm. As a result, a shear point is created between the metal plate and the sensor block.

During the ride a rider’s arm was caught in the shear point causing the rider to receive a severe cut. They required immediate medical treatment.

Line drawing of arms which attach seats on an amusement ride, showing red boxes that indicate the position of the metal plate, and demonstrates how its position relative to the seats changes during the ride.
Note: The red box indicates the position of the metal plate, and demonstrates how its position relative to the seats changes during the ride.

Recommended ways to control risks

Employers and self-employed persons should:

  • prevent access to shear points, for example, by installing of physical guard to prevent physical access by the rider or relocation of the components that cause the shear point
  • review hazards and risk control measures associated with amusement structures regularly to ensure safe operation of the structure
  • obtain information from amusement ride manufacturers and engineers, industry professionals and other sources of information on industry improvements that may assist in reviewing and revising risk control measures.

SOURCE:

Work Safe Victoria

October 08, 2019.

https://www.worksafe.vic.gov.au/safety-alerts/amusement-ride-guarding