Cybex - The Cybex Sirona

Cybex is launching a new child’s car seat. Naturally, the main focus is safety. And few people are as deeply committed to safety as company founder, Martin Pos.

The development of the Cybex Sirona took several years. What was the starting point?
We wanted to extend the period of time that children can ride safely facing rearward. For conventional, forward-facing Group 1 seats (approx. 9 months to 4 years old), in a front-on collision the integrated belt harnesses hold the shoulders back and the child’s head, which is still heavy relative to its body, is thrown forwards. This can have fatal consequences – the injury rate in Group 1 is significantly higher than in the rear-facing Group 0+ baby capsules, for example. Since our mission is to achieve maximum safety over and above the statutory norms, we soon realised that the use of conventional belt harness systems would limit our options. 

We took inspiration from the Scandinavian market. It is normal for children there to sit facing rearwards until around four years of age, and this has proven to be successful – the injury rate in Group 1 remains consistently low as collision energy is absorbed across the breadth of the back. However, these were not able to be introduced worldwide due to the fact that they can be difficult and inconvenient to use. Then we found systems in Japan, which were fabulously comfortable and easy to use, but did not meet European safety standards.

Sirona is the result of this research. We have combined the world’s leading technological solutions to create this one final product. If the child is too large, the Sirona can be turned around and used facing forwards with a safety cushion. At the same time, the rotating feature allows for easy entry and exit positioning. 

Cybex works with engineers and international designers in order to combine quality, functionality and design in one device. Who took part in the creation of Sirona?
It is a very tight collaboration of product developers, engineers, safety experts, quality controllers, industrial designers and fashion designers. Not to mention the feedback from the actual users: the parents and children who are regularly interviewed during the development process. 

The new child seat is exceptionally different due to its innovative safety solutions. What are the five key points, which offer children a greater level of safety?
There are so many! Probably the most important aspect is that the seat can be comfortably used facing rearwards until the age of approximately four years (18 kg). This reduces the risk of severe or fatal injury by more than 90 % compared to conventional seats. In addition, the Sirona is secured in place using a one-click Isofix system without any further need for fastening. A support foot absorbs the force in a front-on collision and provides added stability. Misuse is virtually ruled out.

The innovative “seat-to-chassis” technology allows a direct link between the seat and the chassis. In the event of an accident the forces are transmitted directly from the seat to the chassis, ensuring absorption of the impact at the earliest possible phase of the collision.

The Sirona’s L.S.P. system offers adjustable linear side collision protection which further increases the level of safety in the event of a side collision. The system can be individually adjusted and, together with the shoulder and head protectors, absorbs any forces that occur.

When used facing forwards, the child is protected by a depth-adjustable safety cushion. Thanks to the Active Response Technology (A.R.T.), in the event of an accident, the safety cushion responds to the body’s kinetic energy and holds the child within the seat’s safety zone.

How did the name Sirona come about?
The name Sirona is a combination of the English “zero” and “one”. The Sirona is a combination seat that covers the ECE Groups 0 and 1, which means that it can be used from birth until four years of age.

Does the concept of a perfect child seat exist, which at this point in time is not yet feasible? Like video-phones used to be, or like beaming still is?
Funnily enough, the idea of protecting children in cars is not so old. Personally, I never had a child seat; there weren’t even seat belts in the backseat. Child car seats only became compulsory by law in Germany in 1993, exactly 20 years ago.

However, there have been enormous developments in this field since then and a lot more happen in the future. The safest thing would be to encase the child in a kind of gel bubble but I doubt that this would gain acceptance.

An important principal in child safety is that even the safest seat will not provide sufficient protection if it is not accepted by parents and child or is used incorrectly. 


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