67 土佐鶴の使用法に関する一考察

概要

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For the purpose of increasing the efficiency of operation by analysing the operation method by Tosa-type pick, we studied states of use of Tosa-type pick on loading and unloading a trolley used for log transportation. The results obtained are as follows : 1. The larger d (diameter of logs) is, the smaller P (rate of use by pull method) is in the following relation : P=ad^<-b> and as d becomes large, the various use methods gradually increase.2. We must use the roft-hook against slender log and use jointly together the hook lever against big log.3. We must improve on the point and the back of Tosa-type pick which has been used at present.
一般社団法人日本森林学会の論文
1952-12-25