%0 Journal Article
%T Optimum seat pan and back-rest parameters for a comfortable tractor seat
%J Ergonomics
%D 2000
%A Tewari, V. K.
%A Prasad, N.
%V 43
%N 2
%P 167-186
%X An experimental set up was fabricated to measure the pressure distribution on the seat pan and back-rest of a tractor seat. Experiments were conducted with four different seat pans having radius of curvatures of 60, 75, 90 and infinity cm, four back-rests with radius of curvatures of 30, 60, 90 and infinitity cm, and three back-rest inclinations of 0 degrees , 5 degrees and 10 degrees on representative Indian tractor operators. The subjective assessment of perceived comfort at the seat-operator interface was also recorded. Experiments were conducted in a randomized block design and the data obtained were analysed using suitable computer packages. Results indicate that all the parameters, namely seat pan, back-rest profile curvatures and the back-rest angle of inclination, affect the pressure distribution. It is concluded that a seat pan with radius of curvature 75 cm, back-rest with radius of curvature 30 cm and back-rest inclination of 10 degrees are the most suitable parameters for Indian tractor operators.<p /><p>Language: en</p>
%G en
%I Informa - Taylor and Francis Group
%@ 0014-0139
%U http://dx.doi.org/10.1080/001401300184549