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Igus support student project to introduce child safety lock on cleaning agent bottles

21 September 2018

94,000 calls are made to the Poison Information Centre every year, due to children coming into contact with household cleaning agents. This has called for seven TU Darmstadt students to make a special, 3D-printed safety lock on such child-unfriendly products.

Credit: Igus

As part of its Young Engineers Support (YES) programme, Igus supports innovative student projects, such as ‘EMKindersicherung’. EMKindersicherung is the name of the safety device that allows personalised access to household chemicals via a smartphone app.

The product is mostly 3D-printed and consists of a housing that is placed over the lid of the cleaning agent bottle and engages with the cover plate under the plastic ring of the bottle. Using a lever, the cover plate can be moved manually and the device can be secured.

The closing mechanism, moreover, consists of an electro-thermal actuator. Its current feed both heats and deforms so that the safety device opens and can be removed from the bottle. The actuator is attached to a pin. By turning the lever, the pin mounted with an iglidur plain bearing engages and prevents an unauthorised opening.

“We approached the young engineers’ support from Igus with our project because we were looking for a bearing that has a low coefficient of friction and that is resistant to acids and alcohol,” explains Ida Blum from the development team of the EMKindersicherung. “In addition, the bearing must withstand the actuator’s temperature, which can reach up to 125°C. That's why we chose iglidur A350.”

The plain bearing material is UV-resistant and also suitable for use in medical technology, as well as in the food and packaging industry.

Innovative projects such as EMKindersicherung are supported by Igus as part of the YES programme. The initiative supports young pupils, students and inventors across the world in the development and execution of their technical projects. For further information on YES, visit www.igus.co.uk/YES.


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