Vertically adjustable stern drive for watercraft

Details Vertically adjustable stern drive for watercraft Vertically adjustable stern drive for watercraft

1995-06-07

1997-07-15

Avila, Stephen

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440 61, 440 57, B63H 5125, B63H 2000

Patent

active

056477805

ABSTRACT:
A marine stern drive includes a tilt/trim and lift adjustment mechanism which raises and lowers the drive while maintaining an established trim angle. The adjustment mechanism includes a parallelogram linkage system. An upper lever of the linkage system is defined in part by a pair of tilt and trim actuators which vary the length of the upper linkage to adjust the trim position of the stern drive and for tilt up. A lower lever of the linkage system is defined between two flexible couplings of a propulsion drive train. One of the flexible couplings is coupled to a lower drive unit of the stern drive which permits the lower lever to rotate without changing the trim angle of the lower drive unit.

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