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Combined sun protection and blackout system
2005 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This is the official version of the thesis and therefore some confidential information has been removed. The aim of this thesis was to conduct a thorough investigation of truck drivers’ needs and desires regarding sun protection and blackout equipment in the cab and thereafter to develop a concept for a new system that met the customers’ and Volvo Truck’s requirements. The current system was evaluated through interviews with 21 truck drivers. The inquiry showed that to suit drivers of different heights the system needs greater adjustment abilities. Other problems included difficulty to reach parts of the system and gaps where light entered. Many drivers also wished for a bug net in the roof hatch. A benchmark showed that all competitors except for Scania provide different blind systems, although they are often optional in their biggest models. Only Renault’s biggest truck, the Magnum uses the blinds for both sun protection and blackout. In the other models curtains are used for blackout. The new system consists of blinds in the windshield, side window and roof hatch and is supplemented with a pair of curtains to black out the side window. The motorized windshield blind allows manual pull down and its guide rails are hidden and integrated with the A-pillars so that no gaps appear. The blind can be lowered all the way down to the dashboard thus working as both sun protection and blackout. To avoid the blind being lowered to far a safety button has to be pushed at the same time as the blind control button when activating the blackout position. For the side window the blind is used only for sun protection. On the driver side a manual blind is used but a motorized roller blind is provided as an option. On the passenger side it is possible to choose whether to have sun protection or not. If this is desired the sun protection consists of a motorized roller blind. The blinds are placed in a window cover and visible guide rails are placed on the outside of the cover. To allow the guide rails to follow the inclined shape of the side window a spring system is attached to blind’s hem bar. The roof hatch system consists of two blinds. The upper one is a bug net. It is manually operated and can be either rolled up on the roller tube or drawn out completely. Beneath the bug net is an opaque blind which is manually handled and can be placed in four positions, covering one fourth, one half, three fourths or the entire roof hatch. A motorized roller blind is provided as an option. To complete the system curtains are used to black out the side windows. They are attached to the curtain rails by “click-in” clips.

Place, publisher, year, edition, pages
Keyword [en]
Technology, solskydd, sun protection, blackout, mörkläggning, produktutformning, product development, lastbilar, trucks, lastbilsförare, truck drivers, design
Keyword [sv]
URN: urn:nbn:se:ltu:diva-45816ISRN: LTU-EX--05/249--SELocal ID: 37ad1527-afa4-4ab1-9353-0e04469bd2d1OAI: diva2:1019113
Subject / course
Student thesis, at least 30 credits
Educational program
Ergonomic Design & Production Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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