公开(公告)号：US20190291838A1

公开(公告)日：2019-09-26

申请号：US16438051

申请日：2019-06-11

Applicant: SHOWA CORPORATION

Inventor： Takahiko SAITO ,  Yoshimitsu KOMURO ,  Hayato TSUTSUI

IPC: B63H20/10 ,  B63H20/02

Abstract: Provided is an outboard motor raising and lowering apparatus that is capable of automatically changing the speed of raising/lowering an outboard motor according to a status of the outboard motor. The outboard motor raising and lowering apparatus (1) includes: a first fluid passage that connects a pump (42), a second chamber(s) of one or more tilt cylinders (14), and a second chamber(s) of one or more trim cylinders (12); a second fluid passage that is connected to the first chamber of at least one of the one or more trim cylinders; a switching valve (60) provided at the second fluid passage; and a control section (100) configured to control the switching valve with reference to a watercraft status signal.

公开(公告)号：US20190176949A1

公开(公告)日：2019-06-13

申请号：US16274942

申请日：2019-02-13

Applicant: SHOWA CORPORATION

Inventor： Takahiko SAITO ,  Yoshimitsu KOMURO

IPC: B63H20/10 ,  B63H20/14 ,  B63H20/00

CPC classification number: B63H20/10 ,  B63H20/001 ,  B63H20/14

Abstract: Provided is an outboard motor raising and lowering apparatus that is capable of automatically changing the speed of raising/lowering of an outboard motor according to the status of the outboard motor. An outboard motor raising and lowering apparatus (1) includes: a first fluid passage that connects a pump (42) and a lower chamber(s) of one or more tilt cylinders (14); a second fluid passage that connects the first fluid passage and a lower chamber(s) of one or more trim cylinders (12); a switching valve (60) provided at the second fluid passage; and a control section (100) configured to control the switching valve (60) with reference to a watercraft status signal.

公开(公告)号：US20170261014A1

公开(公告)日：2017-09-14

申请号：US15361241

申请日：2016-11-25

Applicant: Showa Corporation

Inventor： Hayato TSUTSUI ,  Takahiko SAITO ,  Yoshimitsu KOMURO

IPC: F15B15/16 ,  F15B15/14 ,  B63H20/10

CPC classification number: F15B15/16 ,  B63H20/08 ,  B63H20/10 ,  F15B15/1409 ,  F15B15/1428 ,  F15B15/1447 ,  F15B15/18 ,  F15B2211/20561 ,  F15B2211/8606

Abstract: There are provided a bar-shaped piston rod having one end portion attached to a marine vessel propulsion machine main body; an inner cylinder; an inner piston mounted in the other end portion of the piston rod, is accommodated in the inner cylinder, and divides a space in the inner cylinder into a fourth chamber on the one end portion side and a fifth chamber on the other end portion side; an outer cylinder accommodating the inner cylinder therein; and an outer piston covering an opening portion of one end portion of the inner cylinder in a state where the piston rod is exposed, divides a space in the outer cylinder into a second chamber on one end portion side and a first chamber on the other end portion side, and is formed with a through hole that allows the fourth chamber and the second chamber to communicate with each other.