F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
115/12
F02B 61/04 (2006.01)
Patent
CA 1047844
ABSTRACT OF THE DISCLOSURE Disclosed herein is a stern drive unit comprising a first portion adapted to be fixed relative to a boat hull and extending aft of the transom of the boat hull, a second portion, trunnions supporting the second portion from the first portion for movement relative to the first portion about a horizontally extending transverse tilt axis, a third portion, bearings sup- porting the third portion from the second portion for common tilting movement and for rotation of the third portion relative to the second portion about a steering axis perpendicular to the tilt axis, an input shaft rotatably supported by the first portion, and a transmission including a cross shaft supported by the first portion for rotary movement coaxial with the tilt axis and for axial movement relative to the first portion, an output gear supported by the second portion for rotation in coaxial relation to the cross shaft, against movement axially relative to the second portion, and in driving connection with the drive shaft, splines on the output gear and on the cross shaft for effecting common rotary movement of the cross shaft and the output gear and permitting axial movement of the cross shaft relative to the output gear, a driving member driven by the input shaft and supported by the first portion in coaxial relation to the cross shaft, a selectively operable coupling for connecting the driving member to the cross shaft for common rotary movement in response to axial movement in one direction of the cross shaft, a shift lever on the first portion and operatively engaged with the cross shaft for selectively axially shifting the cross shaft so as thereby to rotationally couple the driving member and the cross shaft, a linkage for steering the third portion relative to the second portion including a steering member rotatably supported by the first portion about an axis co-planar with the steering axis, and pin and slot con- nections located coaxially with the tilt axis when the third Abstract of Disclosure (Cont'd) portion is located for straight ahead movement, which pin and slot connections connect the steering member and the third portion so as to effect steering of the third portion in re- sponse to steering movement of the steering member.
247795
Na
Outboard Marine Corporation
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