Outboard motor
First Claim
1. An outboard motor adapted to be mounted on a stern of a boat and having a propeller to propel the boat, comprising:
- an internal combustion engine having an engine output shaft and powering the propeller through the engine output shaft;
an electric motor having a motor output shaft and powering the propeller through the motor output shaft;
a clutch disposed between the engine and the motor and transmitting an output of the engine to the propeller through the engine output shaft and the motor output shaft, when the engine is operated; and
a motor output transmission mechanism transmitting an output of the motor to the engine through the motor output shaft and the engine output shaft, when the engine is to be started.
1 Assignment
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Accused Products
Abstract
An outboard motor is equipped with a centrifugal clutch located between the crankshaft of an engine and a rotor of an electric motor for, when the engine operates, transmitting its output to through the rotor to a propeller, and with a motor output transmission mechanism for, when the engine does not operate, transmitting the output of the motor to the crankshaft. The engine can therefore be started by the motor used to drive the propeller. As a result, there is no need to install a separate electric motor for engine starting, so that starting of the engine by electric power can be made possible with minimum increase in the size and cost of the outboard motor.
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Citations
34 Claims
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1. An outboard motor adapted to be mounted on a stern of a boat and having a propeller to propel the boat, comprising:
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an internal combustion engine having an engine output shaft and powering the propeller through the engine output shaft;
an electric motor having a motor output shaft and powering the propeller through the motor output shaft;
a clutch disposed between the engine and the motor and transmitting an output of the engine to the propeller through the engine output shaft and the motor output shaft, when the engine is operated; and
a motor output transmission mechanism transmitting an output of the motor to the engine through the motor output shaft and the engine output shaft, when the engine is to be started. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An outboard motor adapted to be mounted on a stern of a boat and having a propeller to propel the boat, comprising:
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an internal combustion engine having an engine output shaft and powering the propeller through the engine output shaft;
an electric motor having a motor output shaft and powering the propeller through the motor output shaft;
a clutch disposed between the engine and the motor and transmitting an output of the engine to the propeller through the engine output shaft and the motor output shaft, when the engine is operated; and
an air blower provided between the motor and the clutch and blowing air to cool at least the motor. - View Dependent Claims (22, 23, 24, 25)
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26. An outboard motor adapted to be mounted on a stern of a boat and having a propeller to propel the boat, comprising:
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an internal combustion engine having an engine output shaft and powering the propeller through the engine output shaft;
an electric motor having a motor output shaft and powering the propeller through the motor output shaft, when the engine is not operated;
a bar handle installed to be operable by an operator;
a throttle grip provided at the bar handle to be rotatable by the operator and having a throttle opening regulator that regulates an opening of a throttle valve of the engine in response to the rotation of the throttle grip;
a rotation angle sensor installed in the throttle grip and outputting a signal indicative of a rotation angle of the throttle grip; and
a controller installed inside the throttle grip and inputting the outputted signal of the rotation angle sensor to control operation of the motor in response to the outputted signal of the sensor. - View Dependent Claims (27, 28)
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29. An outboard motor adapted to be mounted on a stern of a boat, comprising:
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a drive shaft oriented in a direction parallel with a vertical axis when mounted on the stern of the boat;
a motor connected to an upper end of the drive shaft and rotating the drive shaft about the vertical axis;
a propeller connected to a lower end of the drive shaft to be rotatable about the vertical axis; and
a cover having a tube-like shape and enclosing the propeller inside the tube. - View Dependent Claims (30, 31)
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32. In an outboard motor adapted to be mounted on a transom of a boat by a mounting device, the mounting device comprising:
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a stern bracket having a transom abutment member for abutment on a rear face of the transom and a slide beam projecting forward of the transom;
a slide bracket attached to the slide beam to be slidable in a thickness direction of the transom;
a clamp member supported by the slide bracket to be slidable in the thickness direction of the transom;
a manual lever supported to be swingable about a rotation axis formed on the slide bracket by an operator; and
a link interconnecting the clamp member and the manual lever to transmit displacement of the manual lever to the clamp member;
whereby the transom is clamped between the transom abutment member of the stern bracket and the clamp member to be mounted thereon by allowing the operator to operate the manual lever to slide the clamp member to a position where the clamp member abuts on a front face of the transom. - View Dependent Claims (33, 34)
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Specification