PROBLEM TO BE SOLVED: To provide an art capable of enhancing ability to absorb an impact force caused by a collision of an underwater obstacle against a ship propulsion machine.SOLUTION: A trim/tilt device for ship propulsion machine comprises: a rod-shaped piston rod 60 with one of end part sides attached to a ship propulsion machine body; an inner cylinder 40; an inner piston 50 attached to the other one of the end part sides of the piston rod 60 and encased in the inner cylinder 40 and partitioning a space inside the inner cylinder 40 into a fourth chamber Y4 on the one of the end part sides and a fifth chamber Y5 on the other one of the end part sides; an outer cylinder 20 encasing the inner cylinder 40; and an outer piston 30 covering an opening part at the one of end part sides of the inner cylinder 40 in a state of exposing the piston rod 60, partitioning a space in the outer cylinder 20 into a second chamber Y2 on the one of the end part sides and a first chamber Y1 on the other one of the end part sides, and including a through-hole 32d formed to communicate the fourth chamber Y4 and the second chamber Y2.SELECTED DRAWING: Figure 3
【課題】船舶推進機に対する水中障害物の衝突による衝撃力を吸収する能力を向上させることができる技術を提供する。【解決手段】一方の端部が船舶推進機本体に取り付けられた棒状のピストンロッド60と、内側シリンダ40と、ピストンロッド60の他方の端部に装着されて内側シリンダ40内に収容され、内側シリンダ40内の空間を一方の端部側の第4室Y4と他方の端部側の第5室Y5とに区画する内側ピストン50と、内側シリンダ40を収容する外側シリンダ20と、ピストンロッド60を露出した状態で内側シリンダ40の一方の端部の開口部を覆い、外側シリンダ20内の空間を一方の端部側の第2室Y2と他方の端部側の第1室Y1とに区画すると共に、第4室Y4と第2室Y2とを連通する貫通孔32dが形成された外側ピストン30と、を備える。【選択図】図3
TRIM/TILT DEVICE FOR SHIP PROPULSION MACHINE, AND SHIP PROPULSION MACHINE
船舶推進機用トリム・チルト装置、船舶推進機
2017-09-21
Patent
Elektronische Ressource
Japanisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
TRIM/TILT DEVICE FOR SHIP PROPULSION MACHINE, AND SHIP PROPULSION MACHINE
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