Corresponding Link Analyses of Controls of Farm Machinery (II)

On Start, Turn and Stop Manipulation of Binders and, Jidatsu-Combines.

Abstract

Non-weighted link analyses of nine binders and nine jidatsu-combines (Table 1) were performed to develope the design of simpler control devices. Results obtained might be summarized as follows:
1) The total frequency of links were higher in combines than in binders. As regards sub-jobs, the frequency was highest in start, and lowest in stop. (Table 2).
2) The frequency of operations in each organ (Table 3) was a little higher in limbs than in sense organs and highest in the right hand. The variation of frequency among investigated machi-nes was very small in sense organs and higher in the left hand than in the right.
3) The frequency of operations in each control device (Table 4) was highest in the traveling controls and lowest in the harvesting. But, the variation among machines was largest in the harvesting controls in binders and in the traveling controls in combines. The above variation was nearly nil in engine driving controls.
4) The frequncy of operations was chiefly affected by the number and the layout of equipped controls (Table 5), and had no connection with the engine power or the type of the machine.
5) The reduction of number of controls, including the adoption of such a cotrol as had plural functions, and the layout of controls following the routine sequence of operations were proposed to be effective for the simplificaion of operations.