Motor mounting structure for boat

A boat having a hull including an inclined transom, an outboard motor and a mounting structure mounting said motor on said transom for rotary oscillatory steering movements about an inclined axis, a block of the motor being within the hull, a propeller of the motor being outside the hull and a drive shaft of the motor passing through the mounting from said block to drive said propeller, said propeller being mounted for rotation about a drive axis, said mounting structure including a structure permitting said motor to rotate about a horizontal axis to displace said propeller between a lowered operative position and a raised inoperative position, said inclined axis and said drive axis intersecting to the rear of a vertical line which intersects both said drive axis and said horizontal axis, said propeller including a hub having a front end and a rear end, said inclined axis intersecting said drive axis between said front and rear ends.

In combination an outboard motor having a block, a propeller below and to the rear of the block in relation to the direction in which the motor travels, a drive shaft extending downwardly from the block to drive said propeller, the propeller being rotatable about a drive axis and having a hub with a front end and a rear end and blades protruding therefrom, and a mounting structure which includes a structure for permitting said motor to perform rotary oscillations about a horizontal axis to displace said propeller between a lowered operative position and a raised inoperative position, and a structure permitting said motor to perform rotary steering oscillations about an inclined axis, said drive shaft being rotatable about an axis thereof and said inclined axis intersecting said drive axis rearwardly of a point of intersection between said axis of the drive shaft and said drive axis.

A boat having a hull, an outboard motor having a drive shaft and a housing which pass through an inclined rear transom of the hull with a block of the motor inside the hull and a propeller outside the hull and rotatable about a drive axis, a structure mounting the motor on the transom for a first movement about a horizontal axis to enable the propeller to be lowered to an operative position and raised to an inoperative condition, and a second steering movement about an inclined axis which is normal to the angle of inclination of the transom and which passes close to, or through, the propeller so that the propeller turns on itself thereby to minimise movement of the propeller off a centre line of the boat during steering, said drive shaft having an axis arranged so that it intersects said axis about which the propeller rotates forwardly, in the direction in which the boat travels, of a point of intersection between said drive axis and said inclined axis.

A boat having a hull including an inclined transom, an outboard motor and a mounting structure mounting said motor on said transom for rotary oscillatory steering movements about an inclined axis, a block of the motor being within the hull, a propeller of the motor being outside the hull and a drive shaft of the motor passing through the mounting from said block to drive said propeller, said propeller being mounted for rotation about a drive axis, said mounting structure being constructed to permit said motor to rotate about a horizontal axis to displace said propeller between a lowered operative position and a raised inoperative position, said inclined axis and said drive axis intersecting to the rear of a vertical line which intersects both said drive axis and said horizontal axis, said mounting structure comprising an outer component mounted on said transom for rotary oscillation about said inclined axis and an inner component mounted on said outer component for rotary oscillation with respect to said outer component about said horizontal axis, said motor being carried by said inner component.

In combination an outboard motor having a block, a propeller below and to the rear of the block in relation to the direction in which the motor travels, a drive shaft extending downwardly from the block to drive said propeller, the propeller being rotatable about a drive axis and having a hub with a front end and a rear end and blades protruding therefrom, and a mounting structure constructed to permit said motor to perform rotary oscillations about a horizontal axis to displace said propeller between a lowered operative position and a raised inoperative position, and to permit said motor to perform rotary steering oscillations about an inclined axis, said inclined axis intersecting said drive axis rearwardly of a vertical line which intersects said drive axis and said horizontal axis and said inclined axis intersecting said drive axis between said front and rear ends of said hub.

In combination an outboard motor having a block, a propeller below and to the rear of the block in relation to the direction in which the motor travels, a drive shaft extending downwardly from the block to drive said propeller, the propeller being rotatable about a drive axis and having a hub with a front end and a rear end and blades protruding therefrom, and a mounting structure constructed to permit said motor to perform rotary oscillations about a horizontal axis to displace said propeller between a lowered operative position and a raised inoperative position, and to permit said motor to perform rotary steering oscillations about an inclined axis, said inclined axis intersecting said drive axis rearwardly of a vertical line which intersects said drive axis and said horizontal axis, said mounting structure including an outer component for attachment to an inclined transom of a boat, an intermediate component carried by said outer component and free to perform rotary steering oscillations with respect to said outer component about said inclined axis, and an inner component carried by said intermediate component and free to perform rotary oscillations with respect to said intermediate component about said horizontal axis.