Igloo

Sammanfattning: This degree project has been performed along with Classic Garden in Gothenburg and Ballongfirman Far & Flyg in Stockholm. Together we have developed a sun- wind- and rain protection. The protection is permanently assembled and mainly intended for public environments as restaurants and outdoor cafés. The design on the sun protection was already done so our task has been to develop the construction and to build a prototype in scale 1:4 and one in scale 1:1. The look of the sun protection is approximately as the name implies, equal an igloo. The lamellae are going to fold out in different steps all the way down to the ground and the both sides will be independently of each other. The first stage in the project was to develop differently principle proposal on how the function will work when folding in and out the protection. The proposals were graded against the specification of requirements and compared with each other. The best proposal became a construction with two round plates, one permanent and one mobile. In the plates there will be tracks in different lengths where a sprint will be able to slide and in this way fold out the sun protection in a certain number of stages. In order to see if the proposal worked as intended was a testing prototype done and the result became successful. In stage two was a prototype in scale 1:4 built to study how the fabric and the lamellas behave. On the prototype were a number of different experiments and tests done just to get the function working as good as possible. During the phase primary structure were blueprints to all unique parts developed and choices of components were done. Calculations on critical situations have been performed and dimensioned after. The third and last stage was to build a prototype in full scale. Most of the unique parts were ordered from a row of different companies, while the others we produced ourselves in the school's workshop. The readymade components was bought in and assembled. The assembly went well but certain improvements were needed to be done meanwhile. The project resulted in an operational prototype and a complete series with blueprints in order to be able to produce the sun protection. In the conclusion were proposals to improvements and advantages and disadvantages with the select structure discussed.