Scage Safe Helmet

Zoe

Structural Product Optimization

Movment and Freedom are fully compatible with Comfort and Safety.

Science, technology and imagination come together in this project to generate a visionary solution.

Maurício Paranhos is a Neurologist residing in Campinas, and a rock-loving drummer. Over the course of 20 years following patients who were victims of trauma suffered mainly by motorcycle accidents, he noticed a contradiction: people who arrived at the ER with severe cranial damage, sometimes with exposure of brain mass, survived, while others without any apparent damage came to die from internal damage, sometimes in a much more subtle way.

Deepening his research on both clinical damage and the protective solution offered by helmets, he concluded that the main cause of death is related to the sudden rotation of the skull, generated by the torque offered by the excessive size of the usual helmets on the market. In addition to this factor, there are two others that were evidenced in the research:

  • Most helmets available are based on a design from the 1940s, which proposes a simple layer of Styrofoam for impact absorption, ineffective at impact speeds greater than 20 km / h.
  • The safety tests demanded by certification standards only measure the impact on the top of the helmet, using a head model that does not adequately simulate the natural geometry of the human skull. These tests ignore the reality of the forces that occur in a typical accident, allowing relatively useless products to be placed on the market.

The development process involved a survey of motorcycle shopkeepers in different market segments, as well as among users. Several helmets were disassembled to assess structural solutions, and we digitized a real average head in 3D, to make sure that mathematical models would be faithful. It also models the test head of the standard tests in order to assess how it adapts in the real world.

Chinese Headforms. The first set of 10 headforms for use in designing... |  Download Scientific Diagram

Head dummies for tests have nothing to do with a real human head

The design of the Scage helmet is based on the patent of Maurício Paranhos and aims to solve the problems of current products. Its primary focus is reducing the volume of the helmet to reduce angular accelerations on impact. It uses a cushioning model with 3 layers of foam with different densities, one of which is viscoelastic - this bio-mimetic model simulates and hugely amplifies the effect of the microstructure of the skullcap, evolved over millions of years to absorb impacts, but only suitable for individual running on his own legs, not with a motorcycle.

Micro-structure of human head bone


Another important detail is related to the direction of energy impact absorption. There are regions of the head where the bones are harder, and therefore there they have a higher absorption capacity, leading to the need to concentrate the supports at these points.

Support areas where the head bones are harder


The Scage has a chin removal system, to convert in a modular way into an open helmet for reduced speed rides.