Stadies on the Safety Engeneering of Agricultural Machines
10.2185/jjrm.27.173
- VernacularTitle:農業機械の安全性工学に関する研究 (第2報)
- Author:
Hideo SATO
;
Heizo MIYAZAKI
- Publication Type:Journal Article
- From:Journal of the Japanese Association of Rural Medicine
1978;27(2):173-180
- CountryJapan
- Language:Japanese
-
Abstract:
In this report we surveyed 548 cases of combine accidents which had occurred in the perefecture of Toyama from 1970 to 1975 gathering information mainly from medical facilities and analyzed its causes.
In analyzing the causes, we classified them into 7 groups. They were 3 groups as a single factor-machine factor, environment factor, and human factor-and 3 groups as a complex cause of two factors-machine-human factor, machine-environment factor and environment-human factor and 1 group as a complex cause of three factorsmachine-environment-human factor.
The contents were summarized as follows.
1. The machine-human factor accounted for the greater percentage 69.4%, human factor 14.2%, machine-environment- human factor 10.0%.
2. As for the machine-human factor, unsafety equipment-unsafe act accounted for 48.9%, imperfect functionunsafe act 32.4%. Much of these accidents relating to this factor were due to unsafe act of operators and unsafety equipment and imperfect function of machine.
3. As for the human factor, the accidents caused by unsafe act of operators accounted for the largest percentage 80.7%, subsconscious accidents by unsafe age (by persons unfitted for its operation because of their age) 16.7% and those by unsafe personal protective equipments 2.6%.
4. As for the environment-human factor, the accidents caused by the unsafe time-unsafe act accounted for 37.5% and unsafe location-unsafe act 25.0%. That is to say, much of the accidents due to this factor occurred when the bad environment of the sunset and unsafe location were related to the unsafe act of operators.
5. When tne combine accidents were classified by the part of the machine which was direct causer of injuries, those by feed-chain accounted for 38.3%, chopper 33.9%, belt 17.9%. As for the machine factor, feed-chain accidents caused by the unsafety equipment accounted for 30.6%, chopper accidents by the imperfect function 68.5% and belt accidents by unsafety equipment 87.0%, the largest percentage.
