| 摘要 |
13 A b s t r a c t A marine propulsion drive apparatus, generally referred to as a boat or vessel drive, for an inboard engine and of the type in which the input drive shaft (18) with the propeller shaft (20) extends through the stern (1) of the boat, and the body (6) of the drive extends substantially straight out from the stern of the boat and has, at the outer end thereof, a propeller (7), preferably a propeller of the surface water driving type, and in which both the steering of the boat and a trimming of the drive body (6) with the propeller (7) up and down respectively in the vertical plane is made by operating the drive body (6) itself, and in which the drive body (6) is mounted in a mounting ring (2) at the stern (1) of the boat, and a trimming mechanism (4) is mounted relative to said mounting ring (2). The trimming mechanism (4) comprises two cooperating conical adjustment rings (31, 32) which are mounted in direct contact with each other, and one adjustment ring (32) of which carries the drive body (6), and in which said two adjustment rings (31, 32) are rotatable in relation to each other, whereby different cone ring combinations are obtained and the drive body (6) is thereby trimmed up or down resp. (Figure 1)
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