Vessel propulsion apparatus
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorShintarou Kawaguchi
Life of this patent
Estimating the term…
Abstract
A vessel propulsion apparatus includes a second shaft that is inserted in a first driven gear and in a second driven gear, that is connected to a dog clutch, and that is arranged to undergo a thrust. The vessel propulsion apparatus includes a first bearing disposed between the first driven gear and the second shaft, a second bearing disposed between the second driven gear and the second shaft, and a case to which a thrust applied to the second shaft is transmitted via the first bearing and the first driven gear or via the second bearing and the second driven gear. The vessel propulsion apparatus includes an adjusting member disposed between the second shaft and at least one of the first driven gear and the second driven gear and arranged to apply a preload onto the first bearing and the second bearing.
Claims12
A vessel propulsion apparatus comprising:
- a first shaft that is rotationally driven;
- a drive gear connected to the first shaft;
- a tubular first driven gear that engages the drive gear;
- a tubular second driven gear that engages the drive gear;
- a dog clutch that is switched by a shift operation between a connected state in which the dog clutch is connected to one of the first driven gear and the second driven gear and a non-connected state in which the dog clutch is not connected to either of the first driven gear and the second driven gear;
- a second shaft that is inserted in the first driven gear and in the second driven gear, that is connected to the dog clutch, and that is arranged to undergo a thrust;
- a first bearing disposed between the first driven gear and the second shaft;
- a second bearing disposed between the second driven gear and the second shaft;
- a case that contains the drive gear, the first driven gear, the second driven gear, the dog clutch, the first bearing, and the second bearing and to which a thrust applied to the second shaft is transmitted via the first bearing and the first driven gear or via the second bearing and the second driven gear;
- and
- an adjusting member that is disposed between the second shaft and at least one of the first driven gear and the second driven gear, and that is arranged to apply a preload onto the first bearing and onto the second bearing.
A vessel propulsion apparatus comprising:
- a first shaft that is rotationally driven;
- a drive gear connected to the first shaft;
- a tubular first driven gear that engages the drive gear and is pressed forwardly;
- a tubular second driven gear that engages the drive gear and is pressed backwardly;
- a dog clutch that is switched by a shift operation between a connected state in which the dog clutch is connected to one of the first driven gear and the second driven gear and a non-connected state in which the dog clutch is not connected to either of the first driven gear and the second driven gear;
- a second shaft that is inserted in the first driven gear and in the second driven gear, that is connected to the dog clutch, and that is arranged to undergo a thrust;
- a first bearing disposed between the first driven gear and the second shaft;
- a second bearing disposed between the second driven gear and the second shaft;
- and
- a case that contains the drive gear, the first driven gear, the second driven gear, the dog clutch, the first bearing, and the second bearing and to which a thrust applied to the second shaft is transmitted via the first bearing and the first driven gear or via the second bearing and the second driven gear.
A vessel propulsion apparatus comprising:
- a first shaft that is rotationally driven;
- a drive gear connected to the first shaft;
- a tubular first driven gear that engages the drive gear;
- a tubular second driven gear that engages the drive gear;
- a dog clutch that is switched by a shift operation between a connected state in which the dog clutch is connected to one of the first driven gear and the second driven gear and a non-connected state in which the dog clutch is not connected to either of the first driven gear and the second driven gear;
- a second shaft that is inserted in the first driven gear and in the second driven gear, that is connected to the dog clutch, and that is arranged to undergo a thrust;
- a first bearing disposed between the first driven gear and the second shaft;
- a second bearing disposed between the second driven gear and the second shaft;
- a case that contains the drive gear, the first driven gear, the second driven gear, the dog clutch, the first bearing, and the second bearing and to which a thrust applied to the second shaft is transmitted via the first bearing and the first driven gear or via the second bearing and the second driven gear;
- and
- an adjusting member that is disposed between the second driven gear and the second shaft, and that is arranged to apply a preload onto the first bearing and onto the second bearing;
- wherein
- the second shaft includes a flange disposed between the dog clutch and the second bearing;
- and
- the adjusting member is disposed between the flange and the second bearing.
Dependencies are inferred from the claim text.