Title: Fluid control circuit for a radio controlled vehicle

Abstract: A fluid control circuit for a radio controlled vehicle for operating an engine, transmission, steering, movable elements of earth-moving machines and braking device of the vehicle by means of radio control. The control circuit has plural shuttle valves interposed between brake cylinders and solenoid operated valves for controlling the brake cylinders. A circuit changing valve is interposed between a conduit communicating with the source of fluid under pressure and conduits communicating with operating cylinders for the engine, transmission, steering, earth-moving machines and braking devices through respective solenoid valves and the shuttle valves. Circuit changing valve is manually operable for selectively feeding fluid in pressure from the source thereof to either conduit communicating with the respective operating cylinders. Thus, the remote control of the vehicle can be simply changed to a manual one or vice versa by a single operation.

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Inventors: Taki, Hiroyuki (Komatsu, JA)
Ogura, Masanovu (Komatsu, JA)
Tanabe, Toru (Kanazawa, JA)
Mizuguchi, Hidenori (Kanazawa, JA)

Application Number: 461795
Filing Date: 1974-04-17
Publication_date: 1976-01-20
Assignee: Kabushiki Kaisha Komatsu Seisakusho (Tokyo, JA)
Primary Class(es): 91/526 60/403, 60/484, 60/911, 91/527
Other Classes:
US Patent Ref:

2403391	Jul, 1946	Muir	60/377.
2446149	Jul, 1948	Wells	91/411.
2643515	Jun, 1953	Harsch	60/DIG.

Other Refs:
Primary Examiner: Geoghegan, Edgar W.
Assistant Examiner:
Attorney: Armstrong, Nikaido & Wegner