Title:
AUTOMATIC SPEED CHANGE GEAR
Document Type and Number:
Japanese Patent JPS5797943
Kind Code:
A
Abstract:
PURPOSE:To remove the effort of a driver perfectly, by changing a running speed automatically by operating a speed up gear or a reduction gear according to the variation of the rotational speed of an engine. CONSTITUTION:A speed up gear 8 and a reduction gear 9 are provided, while those gears are able to change the running speed of a working load 7 driven by an engine 1 into, for example, two different speeds. The signal of a rotational speed detector 4 detecting the rotational speed of the engine and a set rotational speed signal directed by a rotational speed directing stick 5 as a throttle lever are compared in a comparator 6. Then, the comparator 6 and the speed up gear 8 or the reduction gear 9 are connected by an interlocking device 10 so that the speed up gear 8 operates when a difference of a set rotational speed against an actual rotational speed in positive and the reduction gear 9 operates when the output is negative.
Inventors:
TAKAHASHI SEIGO
Application Number:
JP17243880A
Publication Date:
June 17, 1982
Filing Date:
December 06, 1980
Export Citation:
Assignee:
ISEKI AGRICULT MACH
International Classes:
(IPC1-7): F16H5/50