A Comparison of Six Parallel Levers and Two Joysticks for the Maneuverability of Forwarders
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概要
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In order to clarify the operational features of two types of controllers, which were six parallel levers and two joysticks, a comparative investigation was conducted for three different forwarders. From the results of a detailed time and operational analysis, operations of a grapple crane which were related to slewing, boom and arm functions were proved to be the main functions in loading and unloading. In regard to the six parallel levers, the following four defects were pointed out. The positions assigned for the functions, slewing, arm and rotator were not in natural relations to those movements. A lever for extension is difficult to operate. Very difficult operations occurred simultaneously controlling more than three functions. Movements of hands and fingers were very complex. In regard to the two joysticks, there was no serious problem in operations, then again, movements of the joysticks were simple. Operating with the two joysticks seemed not to be difficult even if a few extra functions were added. Thus it was advisable to equip a forwarder with the two joysticks as a controller.
- 一般社団法人日本森林学会の論文
- 1996-11-16
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- A Comparison of Six Parallel Levers and Two Joysticks for the Maneuverability of Forwarders