公开(公告)号：US10882594B2

公开(公告)日：2021-01-05

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 ,  B63H20/08 ,  F15B11/08 ,  B63H20/00 ,  F15B11/16 ,  F15B15/14 ,  F15B15/18

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：US09784267B2

公开(公告)日：2017-10-10

申请号：US14658775

申请日：2015-03-16

Applicant: Showa Corporation

Inventor： Hayato Tsutsui ,  Takahiko Saito

IPC: B63H20/08 ,  F04B7/02 ,  F04B53/10 ,  F04B17/05 ,  F04B23/02 ,  F04B23/06 ,  F04B53/14 ,  F04B53/16 ,  F15B11/17 ,  B63H20/10

CPC classification number: F04B53/10 ,  B63H20/08 ,  B63H20/10 ,  F04B7/02 ,  F04B17/05 ,  F04B23/02 ,  F04B23/06 ,  F04B53/14 ,  F04B53/16 ,  F15B11/17 ,  F15B2211/20561 ,  F15B2211/20576

Abstract: A pump device includes a first pump that includes a first discharge portion and a second discharge portion, a first flow path that connects the first discharge portion and a first chamber of a cylinder, a second flow path that connects the second discharge portion and a second chamber of the cylinder, a second pump that includes a third discharge portion and a fourth discharge portion, a third flow path that connects the third discharge portion and the first chamber, a fourth flow path that connects the fourth discharge portion and the second chamber, a branch path that branches from the third flow path and reaches the tank, and an opening valve that opens the branch path, the opening valve being disposed in the branch path so as to open the branch path when a pressure in the second chamber is higher than a predetermined pressure.

公开(公告)号：US09376192B2

公开(公告)日：2016-06-28

申请号：US14513909

申请日：2014-10-14

Applicant: Showa Corporation

Inventor： Takahiko Saito ,  Hayato Tsutsui

IPC: B63H5/125 ,  B63H20/08 ,  B63H5/00 ,  F15B15/14

CPC classification number: B63H20/08 ,  B63H5/00 ,  F15B15/1423 ,  F15B15/1433

Abstract: A trim and tilt device includes: a cylindrical cylinder; a partition member provided in contact with the cylinder so as to be movable in an axial direction of the cylinder and partitioning a space inside the cylinder; a rod member to which the partition member is attached on one end side of the rod member and which moves relatively in the axial direction of the cylinder together with the partition member thereby adjusting a tilt angle of a marine vessel propelling machine body with respect to a hull; and a rod guide member electrically connected to a sacrificial anode and having a hole so that the rod member passes through the hole, and the rod guide member has a conductive portion disposed at a position, where the hole is formed, so as to electrically connect the rod member and the rod guide member.

Abstract translation: 装饰和倾斜装置包括：圆筒; 分隔构件，其设置成与所述气缸接触，以便能够沿所述气缸的轴向移动并且分隔所述气缸内的空间; 杆构件，分隔构件安装在杆构件的一端侧，并且与分隔构件一起在缸的轴向方向上相对移动，从而调节船用船舶推进机主体相对于 船体 以及杆引导构件，电连接到牺牲阳极并具有孔，使得杆构件穿过孔，并且杆引导构件具有设置在形成有孔的位置处的导电部分，以便电连接 杆构件和杆引导构件。

公开(公告)号：US10975895B2

公开(公告)日：2021-04-13

申请号：US16570598

申请日：2019-09-13

Applicant: Showa Corporation

Inventor： Hayato Tsutsui ,  Nobuaki Tanaka

IPC: F15B15/14

Abstract: A piston structure body includes: a piston that includes a through hole, an inner circumferential portion, and an outer circumferential portion, the through hole being a hole that is formed to penetrate the piston axially through a center of a first face that is an end face on one end side in an axial direction, the inner circumferential portion defining the through hole and connected to the first face, the outer circumferential portion disposed to surround the inner circumferential portion and connected to the first face; and a piston rod that is inserted through the through hole. A first end face that is an end face of the inner circumferential portion on a back face side of the first face is positioned more closely to the first face than a second end face that is an end face of the outer circumferential portion on the back face side.

公开(公告)号：US10974803B2

公开(公告)日：2021-04-13

申请号：US16567640

申请日：2019-09-11

Applicant: Showa Corporation

Inventor： Hayato Tsutsui

IPC: B63H21/00 ,  B63H20/12 ,  B63H25/30 ,  B63H20/00

Abstract: A steering device includes: a cylinder; a normal/reverse rotation type hydraulic power source; an oil storage tank; a first oil passage that connects the cylinder with the hydraulic power source; a second oil passage that connects the cylinder with the hydraulic power source; an oil passage group that includes at least one oil passage connecting at least one of the first oil passage and the second oil passage with the oil storage tank; and a changeover valve group that performs changeover between a state in which hydraulic oil recovered from the cylinder flows back to the oil storage tank and a state in which hydraulic oil supplied from the hydraulic power source to the cylinder does not flow back to the oil storage tank, in accordance with a state of hydraulic oil supplied by the hydraulic power source.

公开(公告)号：USD845349S1

公开(公告)日：2019-04-09

申请号：US29623658

申请日：2017-10-26

Applicant: SHOWA CORPORATION

Designer： Hayato Tsutsui ,  Shinya Horie

公开(公告)号：US09790970B2

公开(公告)日：2017-10-17

申请号：US15361258

申请日：2016-11-25

Applicant: Showa Corporation

Inventor： Hayato Tsutsui ,  Atsushi Kagawa

IPC: B63H5/125 ,  F15B15/16 ,  B63H20/10 ,  F15B15/14

CPC classification number: F15B15/16 ,  B63H20/10 ,  F15B15/1409 ,  F15B15/1428 ,  F15B15/1447 ,  F15B15/18 ,  F15B15/204

Abstract: There are provided a 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, dividing a space in the inner cylinder into a fourth chamber and a fifth chamber; an outer cylinder accommodating the inner cylinder therein; a cap covering an opening portion of one end portion of the outer cylinder; and an outer piston dividing a space in the outer cylinder into a second chamber and a first chamber, is formed with a through hole that allows the fourth chamber and the second chamber to communicate with each other, comes into contact with the cap to divide the third space into an inner space on a more inner side than the through hole and an outer space on a more outer side than the inner space.

公开(公告)号：US09638187B2

公开(公告)日：2017-05-02

申请号：US14866427

申请日：2015-09-25

Applicant: Showa Corporation

Inventor： Takahiko Saito ,  Atsushi Kagawa ,  Hayato Tsutsui

IPC: F01C17/00 ,  F04C11/00 ,  B63H20/08 ,  F04C2/18 ,  F04C15/00

CPC classification number: F04C11/003 ,  B63H20/08 ,  F01C17/00 ,  F04C2/18 ,  F04C11/006 ,  F04C15/0046 ,  F04C15/0049 ,  F04C2270/13

Abstract: A pump device includes a shaft, a first gear pair, a second gear pair, a support pin, and a casing. The first gear pair includes a first driving gear which is disposed on the shaft and is rotatable together with the shaft, and a first driven gear driven by the first driving gear. The second gear pair includes a second driving gear which is disposed on the shaft coaxially with the first driving gear and is rotatable together with the shaft, and a second driven gear driven by the second driving gear and arranged coaxially with the first driven gear. The support pin penetrates the first driven gear and the second driven gear and rotatably supporting the first driven gear and the second driven gear. The casing covers the first gear pair and the second gear pair. The support pin is fitted to the casing to be fixed.

公开(公告)号：US09162742B2

公开(公告)日：2015-10-20

申请号：US14059630

申请日：2013-10-22

Applicant: SHOWA CORPORATION

Inventor： Hayato Tsutsui ,  Shinya Horie ,  Nobuaki Tanaka ,  Takeshi Ueki

IPC: B63H20/10

CPC classification number: B63H20/10

Abstract: A trim and tilt apparatus for a marine vessel propulsion machine includes: a cylinder having a cylinder chamber; a piston rod that is telescopically inserted into the cylinder chamber; and a hydraulic oil supply and discharge device that supplies and discharges hydraulic oil to and from the cylinder chamber, the trim and tilt apparatus allowing the marine vessel propulsion machine to perform a trim operation and a tilt operation, and the hydraulic oil supply and discharge device includes: a plurality of discharge units for simultaneously discharging the hydraulic oil; and a switching unit for switching between a case where the cylinder chamber is supplied with the hydraulic oil discharged by a part of the plurality of discharge units, and a case where the cylinder chamber is not supplied with the hydraulic oil discharged by the part of the plurality of discharge units.

Abstract translation: 一种用于船用船舶推进机的装饰和倾斜装置包括：具有气缸室的气缸; 可伸缩地插入气缸室中的活塞杆; 以及向液压缸室供给和排出液压油的液压油供给和排出装置，允许船用船舶推进机进行修整操作和倾斜操作的装配倾斜装置，以及液压油供给和排出装置 包括：用于同时排出液压油的多个排放单元; 以及切换单元，用于切换在气缸室被供给由多个排出单元的一部分排出的液压油的情况下，以及气缸室未被供给由所述多个排出单元的一部分排出的液压油的情况 多个放电单元。