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US 11,180,234 B2Granted
Outboard motor
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorKoichi Nakayama
Life of this patent
Estimating the term…
Abstract
An engine includes a crankshaft. A driveshaft is connected to the crankshaft, and extends in an up-and-down direction of an outboard motor. A propeller shaft is connected to the driveshaft, and extends in a back-and-forth direction of the outboard motor. An intake pipe is connected to the engine. The intake pipe includes a first pipe portion and a second pipe portion that are provided separately from each other. A seal member is disposed between the first and second pipe portions, and couples the first and second pipe portions therethrough.
Claims20
An outboard motor comprising:
- an engine including a crankshaft;
- a driveshaft connected to the crankshaft, the driveshaft extending in an up-and-down direction of the outboard motor;
- a propeller shaft connected to the driveshaft, the propeller shaft extending in a front to back direction of the outboard motor;
- an intake pipe connected to the engine, the intake pipe including a first pipe portion and a second pipe portion, the first and second pipe portions being provided separately from each other in an axial direction of the intake pipe;
- and
- a seal member disposed between the first and second pipe portions, the seal member including first and second lock portions that are secured to the first and second pipe portions at separate locations in the axial direction, respectively, to fasten the first and second pipe portions together such that the seal member prevents separation of the first and second pipe portions in the axial direction,
- the first and second pipe portions each having an end portion with an inner peripheral wall that defines an end opening and an outer peripheral wall that surrounds the inner peripheral wall and overlaps with the inner peripheral wall as viewed in a radial direction perpendicular to a center axis of the end opening, with the inner peripheral wall and the outer peripheral wall of the first pipe portion forming a first groove portion therebetween, with the inner peripheral wall and the outer peripheral wall of the second pipe portion forming a second groove portion therebetween, with the first and second groove portions receiving the first and second lock portions of the seal member therewithin, respectively.
4 more elements
An outboard motor comprising:
- an engine including a crankshaft;
- a driveshaft connected to the crankshaft, the driveshaft extending in an up-and-down direction of the outboard motor;
- a propeller shaft connected to the driveshaft, the propeller shaft extending in a front to back direction of the outboard motor;
- an intake pipe connected to the engine, the intake pipe including a first pipe portion and a second pipe portion, the first and second pipe portions being provided separately from each other, one of the first and second pipe portions having an end portion with an inner peripheral wall that defines an end opening and an outer peripheral wall that surrounds the inner peripheral wall and overlaps with the inner peripheral wall as viewed in a radial direction perpendicular to a center axis of the end opening, the other one of the first and second pipe portions having an end portion that is disposed between the inner peripheral wall and the outer peripheral wall of the one of the first and second pipe portions in the radial direction to form an inner groove portion between the inner peripheral wall of the one of the first and second pipe portions and the end portion of the other one of the first and second pipe portions and an outer groove portion between the end portion of the other one of the first and second pipe portions and the outer peripheral wall of the one of the first and second pipe portions;
- and
- a seal member disposed between the first and second pipe portions, the seal member including inner and outer lock portions that are secured to the inner and outer groove portions, respectively, to fasten the first and second pipe portions together such that the seal member prevents separation of the first and second pipe portions in an axial direction along the center axis of the end opening.
3 more elements
An outboard motor comprising:
- an engine including a crankshaft;
- a driveshaft connected to the crankshaft, the driveshaft extending in an up-and-down direction of the outboard motor;
- a propeller shaft connected to the driveshaft, the propeller shaft extending in a front to back direction of the outboard motor;
- an intake pipe connected to the engine, the intake pipe including a first pipe portion and a second pipe portion, the first and second pipe portions being provided separately from each other;
- and
- a seal member disposed between the first and second pipe portions, the seal member being secured to the first and second pipe portions to fasten the first and second pipe portions together such that the seal member prevents separation of the first and second pipe portions in an axial direction of the intake pipe,
- the seal member including a first lock portion, a second lock portion, and a coupling portion that couples the first and second lock portions therethrough,
- the first lock portion, the second lock portion and the coupling portion being made of an elastic material and integrally formed as a one-piece, unitary member,
- the first lock portion being locked to the first pipe portion by elasticity of the first lock portion, and
- the second lock portion being locked to the second pipe portion by elasticity of the second lock portion.
7 more elements
Dependencies are inferred from the claim text.