公开(公告)号：US20210262370A1

公开(公告)日：2021-08-26

申请号：US17253399

申请日：2018-07-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Naotoshi NIO ,  Kota TOKUBI ,  Kentaro SUGIMURA

IPC: F01L13/08 ,  F01L1/047 ,  F01L1/46 ,  F01L1/18 ,  F01L1/14

Abstract: A decompression shaft (56) of a decompression device (50) includes an engagement pin (53) that is guided by a guide groove (51a) formed in a decompression weight (51), a decompression cam (54) that is provided on one cam surface of an intake valve cam (25c) and an exhaust valve cam (25b) so as to advance and retreat, and a connection portion (55) that connects the engagement pin (53) and the decompression cam (54). The decompression weight (51) is formed with a rotation restricting groove (51e) that restricts rotation of the decompression shaft (56) when a force acts in a direction in which the decompression cam (54) moves on the decompression shaft (56) from an advanced position to a retracted position when an engine (E) is stopped and that is continuous with the guide groove (51a).

公开(公告)号：US20250108900A1

公开(公告)日：2025-04-03

申请号：US18476553

申请日：2023-09-28

Applicant: HONDA MOTOR CO., LTD.

Inventor： Naotoshi NIO

IPC: B63H20/12 ,  B63H20/06

Abstract: A propulsion apparatus for watercraft, comprising a propulsion motor (M) supported by an upper case, a lower case (11) supported by the upper case so as to be rotatable around a steering axis, and rotatably supporting a drive shaft (22) for transmitting power from the propulsion motor to a propulsion device (13), a steering motor (30) received in the upper case, and a steering reduction gear mechanism (37) received in the upper case, wherein an output end (39) of the steering reduction gear mechanism or a part of a path of steering power transmission from the output end to the lower case is provided with a manual engagement member (57) which is configured to be engaged by a turning tool for manually turning the output end of the steering reduction gear mechanism.

公开(公告)号：US20250108899A1

公开(公告)日：2025-04-03

申请号：US18476543

申请日：2023-09-28

Applicant: HONDA MOTOR CO., LTD.

Inventor： Naotoshi NIO

IPC: B63H20/12 ,  B63H20/06

Abstract: A propulsion apparatus for watercraft, comprising a propulsion motor (M) supported by an upper case, a lower case (11) supported by the upper case so as to be rotatable around a steering axis, and rotatably supporting a drive shaft (22) for transmitting power from the propulsion motor to a propulsion device (13), a steering motor (30) received in the upper case, and a steering reduction gear mechanism (37) received in the upper case, wherein an axis of a rotational output of the steering reduction gear mechanism and an axis of a rotational output of the steering motor extend vertically in parallel with an axis of the drive shaft, and the steering motor overlaps with the steering reduction gear mechanism with respect to a vertical direction.