AHEAD-ASTERN CHANGE-OVER DEVICE FOR PROPULSION MACHINERY FOR VESSEL

摘要

PROBLEM TO BE SOLVED: To provide reverse locking and release by interlocking with change- over operation. SOLUTION: A vertically interposed crank shaft 2g is interlocked through a bevel gear mechanism 12 with a screw shaft 13 interposed by crossing with a drive shaft 11 at right angles. A screw 5 is mounted on the rear end. A propulsion machinery 1 for a vessel is vertically oscillatably supported by a hull 31 around a tilt shaft A. In a change-over device 14 for engaging any one of the ahead gear or the astern gear of the bevel gear mechanism 12 with the screw shaft 13 by means of a shift rod 15a interposed in parallel with the drive shaft 11 at the axial position, an oscillating angle to the underwater side of the propulsion machinery 1 is controlled to the hull 31 side. In addition, a stopper member 19 is provided. Fixed is a locking member 20 for arresting the oscillation of the propulsion machinery 1 to the tilt-up side when the shift rod 15a is moved to the astern timing position.