Ergonomic modification and evaluation of chain saw handle in wood cutting
Keywords:Experiments, Sawing, Angular deviations, Horizontal axis, Index finger, Pilot experiment, Torsion angle, Vibration level, Wood cutting
AbstractVibration-induced stresses in wood cutting were reduced using a chain saw, through handle design, and the study was carried out in two phases such as pilot and main experiments. The pilot experiments were performed prior to main investigations, to record the postural angles of wrist, forearm and index finger and the vibration levels. Based on the findings of pilot experiment, three different angled handles were used for the investigations, with 30°, 60°, and 90° inclinations in the downward direction from the horizontal axis. The results show that the deviation in the torsion angle was lowest for the 30° handle and highest for the original handle, during chain saw operation. The angular deviation for radial/ulnar of the 60° handle is found to be greater than that of both the 30° and 90° handles, but was less than that of the original handle.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.