Artist's commentary
Manufactured in 1970
[Model DE5500 Work Enhancement Vehicle]
Manufactured in 1970
A further development on the liquid center of gravity controller-based bipedal machines developed as early as the second world war: a work enhancement vehicle fitted with arms for general work and automated to where a civilian user can operate it.
This model is the fifth in the DE series, and the last model to be fitted with a diesel engine.
The DE series along with other machines supported Japan during its post-war rapid economic growth period.
Since the DE series, vehicles mainly followed the new standard of using gasoline engines.
However, that genealogy also reached its end point with the advent of the third world war, when next generation work enhancement vehicles known as AMP Suits were developed.
Because the front fuselage containing the control system and the rear fuselage housing the diesel engine and a forced cooling system offered poor visibility from inside the cockpit, initially there would be a spotter who would climb onto the scaffolding sticking out and instruct the pilot, but since accidents would occur with the spotter being hit by the main arm or getting stuck in the joints of the arm, this spotter position was abolished from the DE series onward.
Since the lower arms were a modular design, they allowed the machine to be equipped for many different purposes.
This photo shows it with the expandable multipurpose arms installed. These arms allow the cylinder to extend forward and rotate, effectively expanding its range of useful applications. Furthermore, this motion is not achieved via hydraulic cylinders, but by electric motors.
This cold region model is specially equipped to operate in areas with extremely cold climates.
It differs from the standard model in that it has anti-freezing devices installed on many components, a clear view screen, snow-proof joints, spiked feet and many other features.
Whilst the standard model has only a flat top hatch for the pilot to enter and exit the cockpit through, in cold regions heavy snowfall becomes an obstacle so this model is installed with a side door. Footholds are also installed at the base of the door.