Outboard Marine Corporation

Edward D McBride

Charles B Hall

Robert F Young

Gordon B Hale

Donald J Friddle

A marine propulsion device comprising a ball clutch transmission including a propeller shaft including an axial bore defining an annular wall having therethrough a radially extending aperture communicating with the bore, a ball located in the aperture, an actuator extending in the axial bore in the propeller shaft and being movable between axially spaced drive and neutral positions, the actuator including an axially extending groove, the groove including a deep portion having a cross sectional contour of such dimension as to permit receipt therein of at least a portion of the ball so as to disengage the ball from a driven bevel gear, the groove also including a shallow portion located adjacent the deep portion and having a cross sectional contour such that engagement of the shallow portion with the ball forces the ball radially outwardly so that the ball is engaged by the gear, the shallow portion also including a section which slopes radially inwardly and toward the deep portion, whereby the force exerted on the section by the ball biases the actuator toward the neutral position.

Marine propulsion device ball clutch transmission

Disclosed herein is a marine propulsion device comprising a first pivot connecting a stern bracket to a transom bracket for pivotal movement therebetween about a first pivot axis which is horizontal when the transom bracket is boat mounted, a second pivot connecting the swivel bracket to the stern bracket for pivotal movement of the swivel bracket with the stern bracket and relative to the stern bracket about a second pivot axis parallel to the first pivot axis, a propulsion unit including, at the lower end thereof, a rotatably mounted propeller and connected to the swivel bracket for steering movement therebetween and for common pivotal movement, a trim cylinder-piston assembly pivotally connected to the stern bracket and to the swivel bracket and including first and second ends, a tilt cylinder-piston assembly pivotally connected to the transom bracket means and to the stern bracket and including first and second ends, and a hydraulic system for sequentially operating the tilt and trim cylinder-piston assemblies.

Hydraulic system for marine propulsion device with sequentially

Disclosed herein is a marine propulsion device comprising a trim cylinder pivotally connected to a stern bracket and to a swivel bracket, a tilt cylinder pivotally connected to a transom bracket and to the stern bracket, a reversible pump including first and second ports, a first conduit communicating between the first pump port and one end of the trim cylinder, a second conduit communicating between the first pump port and one end of the tilt cylinder, a third conduit including a third check valve dividing the third conduit into an upstream portion communicating with the second pump port and a downstream portion communicating with the other end of the trim cylinder, a fourth conduit including a fourth check valve dividing the fourth conduit into an upstream portion communicating with the second pump port and a downstream portion communicating with the other end of the tilt cylinder, and a fifth conduit including a fifth check valve communicating between the downstream portion of the third conduit and the downstream portion of the fourth conduit, and operable to prevent fluid flow from the downstream portion of the third conduit to the downstream portion of the fourth conduit, and to permit fluid flow from the downstream portion of the fourth conduit to the downstream portion of the third conduit in response to the presence of fluid under pressure above a predetermined level in the downstream portion of the fourth conduit.

Disclosed herein is an outboard motor comprising a transom bracket adapted to be connected to a boat transom, a propulsion unit which is mounted to the transom bracket for pivotal steering movement of the propulsion unit in a horizontal plane and for pivotal movement of the propulsion unit in a vertical plane between a lowermost running position and a full tilt position, which propulsion unit mounting includes a first pivot connecting an intermediate bracket to the transom bracket for pivotal movement of the intermediate bracket relative to the transom bracket about a first pivot axis which is horizontal when the transom bracket is boat mounted, whereby to enable movement of the propulsion unit through a tilt range, a second pivot connecting a swivel bracket to the intermediate bracket for pivotal movement of the swivel bracket with the intermediate bracket and relative to the intermediate bracket about a second pivot axis parallel to the first pivot axis, whereby to enable movement of the propulsion unit through a trim range, and a king pin pivotally connecting the propulsion unit to the swivel bracket for steering movement of the propulsion unit relative to the swivel bracket about a generally vertical axis and for common pivotal movement with the swivel bracket in a vertical plane about the first and second horizontal axes, hydraulic cylinders for sequentially displacing the propulsion unit from the lowermost position through the trim range and then through the tilt range to the full tilt position, and a support on the transom bracket for providing side support to the intermediate bracket.

Lateral support arrangement for outboard motor with separate tilt and

Disclosed herein is a marine propulsion device comprising a bracket adapted to be fixed relative to a boat transom, a propulsion unit including a steering arm, pivots pivotally connecting the bracket and the propulsion unit for vertical pivotal movement of the propulsion unit about a tilt axis which is substantially horizontal when the bracket is boat mounted, and for swinging movement of the propulsion unit about a steering axis which is generally transverse to the horizontal axis, a support rod fixed in spaced parallel rotation to the bracket and against movement axially of the horizontal axis and for tilting movement in common with the propulsion unit, a member carried by the support rod for movement axially of the support rod, a coupling connecting the member and the steering arm for swinging the propulsion unit about the steering axis in response to movement of the member axially of the support rod, and mechanism for selectively displacing the member axially of the support rod to thereby steer the propulsion unit.

Marine propulsion device steering mechanism

Disclosed herein is a marine propulsion device comprising a transom bracket adapted to be connected to a boat transom, a stern bracket having an upper end, a first pivot connecting the upper end of the stern bracket to the transom bracket for pivotal movement of the stern bracket relative to the transom bracket about a first pivot axis which is horizontal when the transom bracket is boat mounted, a swivel bracket, a second pivot connecting the swivel bracket to the stern bracket below the first pivot for pivotal movement of the swivel bracket relative to the stern bracket about a second pivot axis parallel to the first pivot axis, a propulsion unit including, at the lower end thereof, a rotatably mounted propeller, a third pivot connecting the propulsion unit to the swivel bracket for steering movement of the propulsion unit relative to the swivel bracket about a generally vertical axis and for common pivotal movement with the swivel bracket in a vertical plane about the first and second horizontal axes, and a system for sequentially pivotally displacing the swivel bracket and connected propulsion unit about the second pivot axis and then about the first pivot axis.

Outboard motor with sequentially operating tilt and trim means

Disclosed herein is a marine propulsion device comprising a transom bracket adapted to be connected to a boat transom, a first pivot connecting a stern bracket to the transom bracket for pivotal movement of the stern bracket relative to the transom bracket about a first pivot axis which is horizontal when the transom bracket is boat mounted, a second pivot connecting a swivel bracket to the stern bracket below the first pivot for pivotal movement of the swivel bracket with the stern bracket and relative to the stern bracket about a second pivot axis parallel to the first pivot axis, a king pin pivotally connecting a propulsion unit including a rotatably mounted propeller to the swivel bracket for steering movement of the propulsion unit relative to the swivel bracket about a generally vertical axis and for common pivotal movement with the swivel bracket in a vertical plane about the first and second horizontal axes, a trim cylinder-piston assembly pivotally connected to the stern bracket and to the swivel bracket, a tilt cylinder-piston assembly pivotally connected to the transom bracket and to the stern bracket, and a fluid conduit system communicating between a source of pressure fluid and each of the tilt cylinder-piston assembly and the trim cylinder-piston assembly and including apparatus operable, during reverse operation of the propulsion unit, for causing initial full extension to the trim cylinder-piston assembly, followed by extension of the tilt cylinder-piston assembly, and for causing initial full contraction of the tilt cylinder-piston assembly, followed by subsequent contraction of the trim cylinder-piston assembly.

Hydraulic system for outboard motor with sequentially operating tilt and

Disclosed herein is a marine propulsion device comprising a transom bracket adapted to be connected to a boat transom, a tilt bracket having an upper end, a first pivot located behind the transom and connecting the tilt bracket to the transom bracket for pivotal movement of the tilt bracket relative to the transom bracket between a lower position and a full tilt position about a first pivot axis which is horizontal when the transom bracket is boat mounted, a trim bracket, a second pivot connecting the trim bracket to the tilt bracket below the first pivot for pivotal movement of the trim bracket relative to the tilt bracket between a lowermost position and a full trim position about a second pivot axis parallel to the first pivot axis, a propulsion unit including, at the lower end thereof, a rotatably mounted propeller, a third pivot connecting the propulsion unit to the trim bracket for steering movement of the propulsion unit relative to the trim bracket about a generally vertical axis and for common pivotal movement with the trim bracket in a vertical plane about the first and second horizontal axes, and a linkage system including a toggle linkage and an extensible link connected to the toggle linkage for sequentially pivotally displacing the trim bracket and connected propulsion unit upwardly about the second pivot axis and then upwardly about the first pivot axis.

Dual pivot outboard motor with trim and tilt toggle linkage

Disclosed herein is an outboard motor comprising a transom bracket adapted to be fixedly mounted to a boat transom, an intermediate bracket, a pivot connecting the intermediate bracket to the transom bracket for pivotal movement of the intermediate bracket in a vertical plane about a first axis which is horizontal when the transom bracket is boat mounted, a propulsion unit including a propeller, a king pin connecting the propulsion unit to the intermediate bracket for pivotal sterring movement of the propulsion unit in a horizontal plane relative to the intermediate bracket, a pivot link, a pivot connecting the pivot link to the transom bracket for pivotal movement about a second axis parallel to the first axis, an extensible link having opposite ends, a pivot connecting one of the opposite ends of the extensible link to the pivot link about a third axis parallel to the first axis, a pivot connecting the other of the opposite ends of the extensible link to the intermediate bracket about a fourth axis parallel to the first axis, and a link operable, in response to extension of the extensible link, for pivoting the pivot link so as to additionally increase the distance from the second axis to the fourth axis.

Outboard motor with tilt linkage including pivot link

Disclosed herein is an engine comprising a starter pinion and a flywheel assembly including a generally circular member having a peripheral surface including a radially outwardly extending lip. A ring gear is secured to the peripheral surface and includes teeth adapted for engagement with the starter pinion. The flywheel assembly also includes a flexible annular member secured to the circular member between the lip and the ring gear. The flexible member is located adjacent the ring gear to prevent access to the ring gear teeth by an engine operator, and is displaceable away from the ring gear teeth during engagement of the ring gear teeth with the starter pinion.

Growing community of inventors

Waukegan, IL, United States of America

Edward D McBride