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Design and fabrication of an automated seat pan and armrest height adjustable chair
M. Sahu, S.J. Vijay, S. Masepogu Wilson Kumar,
Published in IAEME Publication
2018
Volume: 9
   
Issue: 13
Pages: 45 - 53
Abstract
This research aimed at designing and fabricating an office computer chair which can automatically adjust the seat pan height and armrest height. The data for those adjustments were based on the user’s anthropometric dimensions. The research aims at helping the user to maintain neutral seating posture while working on a computer. An existing office chair was re-engineered with 1 linear actuator on the roller base & 2 linear actuators to actuate the 2 armrests. A coupling was fabricated to house the bearing and to connect the base actuator to the seat pan. Two supports were fabricated to house the 2 linear actuators for the armrest. An RFID reader was used to read the height from the card and give the input to the microcontroller. The microcontroller calculated the desired seat pan and armrest height while sending the signal to the actuator for the desired movement. This was designed for Indian Anthropometric dimensions. The fabricated prototype was tested for its posture accuracy with human subjects. The results proved that the prototype helped the user to maintain close to neutral posture significantly as compared with manual adjustment of the chair by the user. © IAEME Publication.
About the journal
JournalInternational Journal of Mechanical Engineering and Technology
PublisherIAEME Publication
ISSN09766340