Kabushiki Kaisha Komatsu Seisakusho

Tohru Fukumura

Tetsuya Nakayama

Masaru Uenoyama

Masaaki Ichimura

Tashiro Takeda

Koh Shimizu

Michio Okamoto

Keishiro Kurihara

Takashi Suganami

Teruo Manzeki

Naomi Hatogai

Masakazu Tateishi

Minoru Ichikawa

A warning device for a vehicle is capable of checking a disorder in the vehicle in a sequential order through a dialog between the device and an operator. The device first indicates conduction of a test before a starter is turned on and the operator depresses a test switch in compliance with this indication to test whether all indication units and buzzer can operate normally. After finishing this test, any disorder which may exist at various starting check points such as a hydraulic fluid level and a radiator water level is detected by an associated indication unit. After the starting check up has been completed and the starter is turned on, driving check points such as a torque converter oil temperature and a brake air pressure are constantly watched and if there occurs any disorder in such check points, the operator is informed of such disorder by operation of all of the indication units and the buzzer. The operator then operates only the indication unit associated with the check point where the disorder has occurred by manipulation of a check switch.

Warning device for a vehicle

In a civil machine comprising a working tool provided on a vehicle with a travelling mechanism and a drive therefor, an automatic control system comprises a stroke detector for detecting the amount of stroke of a lifting cylinder operating to move the working tool up and down, an inclination angle detector for detecting the inclination angle of the vehicle, an arithmetic unit for obtaining data representative of the height of the working tool from the detection signals of the two detectors, and a control for operating the lifting cylinder by using the data to control the position of the working tool with high accuracy.

Automatic control systems for the working tool of a civil machine

Growing community of inventors

Hatano, Japan

Tohru Fukumura