- Standardsignatur6796
- TitelOn the Operational Efficiency of a Pruning Machine (4). Time Study and Physiological Evaluation of Pruning Work of Using Several Pruning Machines
- Verfasser
- KörperschaftKyoto University
- Erscheinungsjahr1988
- SeitenS. 208-218
- Illustrationen1 Abb., 5 Tab., 6 Lit. Ang.
- MaterialUnselbständiges Werk
- Datensatznummer200012658
- Quelle
- AbstractWe studied the operational efficiency and physiological load of worker during pruning with two different combinations of man and pruningmachine (e.i. one combination is one man and two machines, another is two men and three machines. 3 workers prouned about 276 stands of SUGI at Kyoto University Forest in Wakayama for three days. We estimated the physiological load fromheart rate by using Heart Rate Memory during work. First, we checked the heart rate of each worker during stepping exercise, and next we calculated the physi ological load during work in the Energy metabolism (Kcal/min) using the Hirakawa's equation. Result: Physiological load was follows: in the case of A, averageheart rate is 120.5 beats/min and Energy metabolism is 8.84 Kcal/min. In the case of B, average heart rate is 109.3 beats/min and average Energy metabolism is 7.51 Kcal/min. Operational efficiency was follows: The case of A needs 3.6 min. to prune a tree. The case of B needs 4.4 min. to prune a tree. We examined the unexpected wound to the stem by the pruning machine at the same time. This result shows the unexpected wound caused by the curve of stem and the bad adjusted pruning machine.
- Schlagwörter
- Klassifikation302 (Mensch und Arbeit (Physiologie und Psychologie). Ergonomie. [Soziale Fragen siehe 96])
245.1 (Ästung. Heilung von Baumwunden. Konservierung von Bäumen)
305 (Arbeitsablauf und Leistung. Lohnberechnung auf der Grundlage von Leistungsmessungen (Zeit- und Leistungstafeln, Arbeitsbewertung))
[520] (Japan)
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