| 摘要 |
PROBLEM TO BE SOLVED: To improve a slidability of a piston rod and and a swivel bracket by setting a sliding member made of a material excellent in the slidability anticorrosion and abrasion resistance on a head end of the piston rod of a trim cylinder device and a contact point of the swivel bracket with which this part makes contact. SOLUTION: A trim tilt device 17 actuates a propulsion unit to trim or tilt by a trim cylinder device 18 and a tilt cylinder device 19. The trim cylinder device 18 is constituted by arranging a piston 25 on a trim cylinder 24 free to slide, blocking an opening part of the trim cylinder 24 by a rod guide 26 and passing a piston rod 27 connected to the piston 25 through the rod guide 26. Thereafter, a head end member 32 on a head end of the piston rod 27 is brought into contact with a thrust receiver 33 screwed on a swivel bracket 14, but at this time, the head end member 32 is constituted by connecting a base part 39 to a top surface part 38 and it is constituted as a sliding member excellent in a slidability, anticorrosion and abrasion resistance. |
