公开(公告)号：US20190380271A1

公开(公告)日：2019-12-19

申请号：US16472089

申请日：2017-12-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Koji Kuriyagawa ,  Hajime Yoshimura ,  Shota Tanabe

IPC: A01D43/063 ,  A01D34/412

Abstract: Uneven distribution of grass clippings in a grass clippings receptacle of a lawn mower can be minimized. A lawn mower includes: a work unit including a housing having a downward-facing opening and a cutter blade rotatably provided in the housing such that the cutter blade cuts grass and generates a transport air flow flowing from the opening of the housing to inside; a grass clippings receptacle configured to receive mowed grass clippings; a grass clippings transport passage connecting an interior of the housing with the grass clippings receptacle; a shutter device including a shutter configured to open and close the grass clippings transport passage and an actuator configured to open/close-drive the shutter; a controller configured to control the shutter device; and a speed sensor for detecting a travel speed of the lawn mower, wherein the controller is configured to open/dose-control the shutter device based on the travel speed.

公开(公告)号：US10271476B2

公开(公告)日：2019-04-30

申请号：US15455309

申请日：2017-03-10

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hajime Yoshimura ,  Yasumi Fukuzumi

IPC: A01D34/68 ,  A01D34/69 ,  A01D34/71 ,  A01D34/73 ,  A01D101/00 ,  A01D34/86

Abstract: In a walk behind mower (10), a clutch actuating mechanism (24) and a dog clutch (23) is included in the power transmission path for the driven wheels (13). The dog clutch includes an input end (23a) provided with teeth (231), an output end (23b) provided with teeth (232) configured to selectively mesh with the teeth of the first clutch half, and a spring member (26) interposed between the first clutch half and the second clutch half to normally urge the two clutch halves away from each other. The clutch actuating mechanism is configured to displace the two clutch halves toward each other against a biasing force of the spring member by using a drive force transmitted from the power source to the clutch actuating mechanism.

公开(公告)号：US10085380B2

公开(公告)日：2018-10-02

申请号：US15442899

申请日：2017-02-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Koji Kuriyagawa ,  Hajime Yoshimura

IPC: A01D34/63 ,  A01D34/71 ,  A01D34/73 ,  A01D43/063 ,  A01D34/00 ,  A01D34/68 ,  A01D101/00

Abstract: A lawn mower includes a housing, a drive source, flaps, a grass clippings container, a grass clippings container weight detection unit, an internal pressure detection unit, and a control unit. If it is determined that a first condition where a change amount per predetermined fixed time of the weight detected by the grass clippings container weight detection unit is below a weight change amount reference value and a second condition where a change amount per predetermined fixed time of the internal pressure detected by the internal pressure detection unit has increased to a internal pressure change amount reference value, are satisfied, the control unit implements control to place the flaps in a substantially horizontal state.

公开(公告)号：US20170265395A1

公开(公告)日：2017-09-21

申请号：US15459032

申请日：2017-03-15

Applicant: HONDA MOTOR CO., LTD.

Inventor： Koji Kuriyagawa ,  Hajime Yoshimura ,  Norikazu Shimizu ,  Shota Tanabe ,  Tomohiro Miyauchi

IPC: A01D69/08 ,  A01D34/76 ,  A01D34/64 ,  F02D17/02 ,  A01D34/74

CPC classification number: A01D69/08 ,  A01D34/64 ,  A01D34/74 ,  A01D34/76 ,  A01D69/00 ,  A01D2101/00 ,  F02D13/06 ,  F02D17/02 ,  F02D41/0087 ,  F02D41/022 ,  F02D2400/06 ,  Y02T10/18

Abstract: The power equipment such as a lawn mower (10) comprises an internal combustion engine (100) having a plurality of cylinders, an engine control unit (110) for selectively deactivating at least one of the cylinders, a work implement such as a cutting blade (70) connected to the engine in a power transmitting relationship, a clutch (80) provided in a power transmission path between the engine and the work implement, and a central control unit (50) for controlling an operation of a propelling device, the clutch and the engine control unit. The central control unit is configured to start the engine with two or more of the cylinders activated, to cause the engine control unit to operate the engine at a prescribed rotational speed, and to cause the engine control unit to deactivate at least one of the cylinders when the engine has reached a stable state at the prescribed rotational speed.

公开(公告)号：US20170265387A1

公开(公告)日：2017-09-21

申请号：US15443184

申请日：2017-02-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Shota Tanabe ,  Koji Kuriyagawa ,  Satoshi Onodera ,  Hajime Yoshimura

IPC: A01D34/71 ,  A01D69/02 ,  A01D43/063

CPC classification number: A01D34/71 ,  A01D34/64 ,  A01D34/66 ,  A01D43/063 ,  A01D69/02 ,  A01D2101/00

Abstract: In a mower (10) driven by a pair of electric motors (15), a battery (16) for supplying electric power to the electric motors is positioned in a space surrounded by the electric motors and a chute (30) for forwarding grass clippings to a grass collection bag (23). The chute extends rearward with an upward slant, and is bent in side view in such a manner that a lower part has a steeper incline than an upper part thereof.

公开(公告)号：US20170265386A1

公开(公告)日：2017-09-21

申请号：US15455309

申请日：2017-03-10

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hajime Yoshimura ,  Yasumi Fukuzumi

IPC: A01D34/68 ,  A01D34/73 ,  A01D34/71 ,  A01D34/69

CPC classification number: A01D34/6812 ,  A01D34/69 ,  A01D34/71 ,  A01D34/73 ,  A01D34/86 ,  A01D2034/6843 ,  A01D2101/00

Abstract: In a walk behind mower (10), a clutch actuating mechanism (24) and a dog clutch (23) is included in the power transmission path for the driven wheels (13). The dog clutch includes an input end (23a) provided with teeth (231), an output end (23b) provided with teeth (232) configured to selectively mesh with the teeth of the first clutch half, and a spring member (26) interposed between the first clutch half and the second clutch half to normally urge the two clutch halves away from each other. The clutch actuating mechanism is configured to displace the two clutch halves toward each other against a biasing force of the spring member by using a drive force transmitted from the power source to the clutch actuating mechanism.

公开(公告)号：US20170265384A1

公开(公告)日：2017-09-21

申请号：US15443207

申请日：2017-02-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Shota Tanabe ,  Koji Kuriyagawa ,  Hajime Yoshimura ,  Satoshi Onodera

IPC: A01D34/66 ,  A01D69/02 ,  A01D43/063

CPC classification number: A01D34/667 ,  A01D34/64 ,  A01D34/66 ,  A01D43/063 ,  A01D69/02 ,  A01D2101/00

Abstract: In a mower (10) driven by a pair of electric motors (15) and using an engine (14) for driving a cutter blade (22), a fuel tank (16) for supplying fuel to the engine is positioned in a space surrounded by the electric motors and a chute (30) for forwarding grass clippings to a grass collection bag (23). The chute extends rearward with an upward slant, and is bent in side view in such a manner that a lower part has a steeper incline than an upper part thereof.

公开(公告)号：US20190335654A1

公开(公告)日：2019-11-07

申请号：US16473307

申请日：2017-12-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Tomoki Ito ,  Hideaki Kobayashi ,  Koji Kuriyagawa ,  Hajime Yoshimura

IPC: A01D34/73

Abstract: A lawn mower includes a cutter blade having flaps and a flap drive mechanism. The flap drive mechanism includes a flap drive source and an intermediate power transmission unit. The intermediate power transmission unit is provided on a power transmission path between the flap drive source and the flaps and provided coaxially with a blade rotation axis. An output axis of a motor is provided coaxially with a blade rotation axis and the intermediate power transmission unit.

公开(公告)号：US20190307071A1

公开(公告)日：2019-10-10

申请号：US16470414

申请日：2017-12-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Koji Kuriyagawa ,  Hajime Yoshimura ,  Shota Tanabe

IPC: A01D43/063 ,  A01D34/66

Abstract: A lawn mower includes: a work unit including a housing having a downward-facing opening end a cutter blade rotatably provided in the housing such that when rotated, the cutter blade cuts grass and generates a transport air flow flowing from the opening of the housing to inside; a grass clippings receptacle configured to receive mowed grass clippings; a grass clippings transport passage connecting an interior of the housing with the grass clippings receptacle; a shutter device including a shutter configured to open and close the grass clippings transport passage and an actuator configured to open/close-drive the shutter; a controller configured to control the shutter device; and a humidity sensor for detecting a humidity of an environment surrounding the lawn mower, wherein the controller is configured to open/close-control the shutter device based on the humidity.

公开(公告)号：US10091931B2

公开(公告)日：2018-10-09

申请号：US15442872

申请日：2017-02-27

Applicant: Honda Motor Co., Ltd.

Inventor： Hajime Yoshimura ,  Koji Kuriyagawa ,  Satoshi Onodera

IPC: A01D34/76 ,  A01D34/63 ,  A01D34/64 ,  A01D34/71 ,  A01D34/81 ,  A01D43/063 ,  A01D34/68 ,  A01D34/73 ,  A01D101/00

Abstract: A lawn mower includes a hollow shaft, a cutter blade, flaps, a belt type continuously variable transmission, and a transmission mechanism. The cutter blade extends along a horizontal line which is perpendicular to the hollow shaft. The flaps are provided for the cutter blade. Each of the flaps has a flap angle changeable along the horizontal line. A control force converter unit of the belt type continuously variable transmission converts a displacement force of the movable sheave relative to the fixed sheave in an axial direction into a control force that controls the flap angle of the flaps. The transmission mechanism is accommodated inside the hollow shaft, and transmits the control force to the flaps.