Marine propulsion – Self-propelled vehicle having land and water propulsion means – Having separated propulsion means for land and water
Reexamination Certificate
2005-08-09
2005-08-09
Swinehart, Ed (Department: 3617)
Marine propulsion
Self-propelled vehicle having land and water propulsion means
Having separated propulsion means for land and water
Reexamination Certificate
active
06926568
ABSTRACT:
An outboard motor steering system for an outboard motor mounted on a stern of a boat and having an internal combustion engine at its upper portion and a propeller with a rudder at its lower portion that is powered by the engine to propel and steer the boat, having a swivel shaft connected to the propeller to turn the propeller relative to the boat and housed in a swivel case, a hydraulic actuator such as a double-acting cylinder connected to the swivel shaft to rotate the swivel shaft, a hydraulic pressure supplier connected to the hydraulic actuator to supply hydraulic pressure, and a controller that controls supply of the hydraulic pressure to the hydraulic actuator in response to a steering signal inputted by an operator such that the outboard motor is steered relative to the boat. In the system, the hydraulic actuator and the hydraulic pressure supplier are housed in the swivel case. The system is thus simply configured to avoid increase in number of components and weight, and does not cause a problem regarding space utilization and operation efficiency, while improving steering feel.
REFERENCES:
patent: 3250240 (1966-05-01), Ziegler
patent: 4416637 (1983-11-01), Kashmerick et al.
patent: 4698035 (1987-10-01), Ferguson
patent: 62-125996 (1987-06-01), None
Masubuchi Yoshinori
Mizuguchi Hiroshi
Otobe Taiichi
Takada Hideaki
Watabe Hiroshi
Honda Motor Co. Ltd.
Swinehart Ed
Westerman Hattori Daniels & Adrian LLP
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