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公开(公告)号：US10588260B2
公开(公告)日：2020-03-17
申请号：US15845914
申请日：2017-12-18
发明人： Koji Kuriyagawa , Hajime Yoshimura , Shota Tanabe
IPC分类号： A01D43/063 , A01D34/00 , A01D42/00 , A01D34/64 , A01D101/00
摘要： A lawn mower contains: a work unit including a housing having a downward-facing opening and 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 grass clippings cut by the work unit; a grass clippings transport passage connecting an interior of the housing with the grass clippings receptacle; a shutter device including a shutter configured to selectively open and close the grass clippings transport passage and an actuator configured to drive the shutter; a controller configured to control the shutter device; and a pressure sensor provided in the grass clippings transport passage to detect a pressure in the grass clippings transport passage, wherein the controller is configured to control the shutter device in accordance with the pressure detected by the pressure sensor.
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公开(公告)号：US10390482B2
公开(公告)日：2019-08-27
申请号：US15459039
申请日：2017-03-15
IPC分类号： A01D34/00 , A01D34/64 , A01D69/08 , F02D17/02 , A01D101/00
摘要： 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 operate the engine at a prescribed rotational speed with two or more of the cylinders kept activated when the clutch is engaged and the propelling device is propelling the power equipment forward, and to deactivate at least one of the cylinders when an opening of a throttle valve is below a first prescribed value for a prescribed time period.
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公开(公告)号：US20190307071A1
公开(公告)日：2019-10-10
申请号：US16470414
申请日：2017-12-12
发明人： Koji Kuriyagawa , Hajime Yoshimura , Shota Tanabe
IPC分类号： A01D43/063 , A01D34/66
摘要： 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.
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公开(公告)号：US10196788B2
公开(公告)日：2019-02-05
申请号：US15458117
申请日：2017-03-14
发明人： Nobuo Yamazaki , Shota Tanabe
摘要： A snow plow, includes a snow plowing part in the front of a machine body having a wheel and a blade; and an operating handle extending rearward from the machine body. The blade is provided at the machine body to be able to be lifted or lowered between a storage position at which the blade is lifted above lowermost surface of the wheel and a usage position at which the blade is lowered below the lowermost surface of the wheel. Any one of the operating handle and the machine body includes an operating member configured to operate the blade such that the blade is lifted or lowered between the storage position and the usage position.
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公开(公告)号：US20180266063A1
公开(公告)日：2018-09-20
申请号：US15458117
申请日：2017-03-14
发明人： Nobuo Yamazaki , Shota Tanabe
摘要： A snow plow, includes a snow plowing part in the front of a machine body having a wheel and a blade; and an operating handle extending rearward from the machine body. The blade is provided at the machine body to be able to be lifted or lowered between a storage position at which the blade is lifted above lowermost surface of the wheel and a usage position at which the blade is lowered below the lowermost surface of the wheel. Any one of the operating handle and the machine body includes an operating member configured to operate the blade such that the blade is lifted or lowered between the storage position and the usage position.
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公开(公告)号：US11533848B2
公开(公告)日：2022-12-27
申请号：US16917109
申请日：2020-06-30
发明人： Fumio Minami , Takuya Matsumoto , Yoshitaka Oota , Shota Tanabe
IPC分类号： A01D43/063 , A01D34/68 , A01D101/00 , A01D34/73
摘要： A lawn mower includes a blade, a motor connected to the blade, and a housing storing the blade in the housing and is configured to mow grass underneath the housing. The lawn mower includes a grass container to contain the mowed grass and a connecting member that connects the housing to the grass container. The housing is provided with a ceiling opening communicating with a flow path inside the connecting member. The ceiling opening overlaps with a region corresponding to a rotation range, of the blade, projected upward along a drive shaft.
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公开(公告)号：US20190380271A1
公开(公告)日：2019-12-19
申请号：US16472089
申请日：2017-12-12
发明人： Koji Kuriyagawa , Hajime Yoshimura , Shota Tanabe
IPC分类号： A01D43/063 , A01D34/412
摘要： 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.
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公开(公告)号：US20170265395A1
公开(公告)日：2017-09-21
申请号：US15459032
申请日：2017-03-15
CPC分类号： A01D69/08 , A01D34/64 , A01D34/74 , A01D34/76 , A01D69/00 , A01D2101/00 , F02D13/06 , F02D17/02 , F02D41/0087 , F02D41/022 , F02D2400/06 , Y02T10/18
摘要： 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.
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公开(公告)号：US20170265387A1
公开(公告)日：2017-09-21
申请号：US15443184
申请日：2017-02-27
IPC分类号： A01D34/71 , A01D69/02 , A01D43/063
CPC分类号： A01D34/71 , A01D34/64 , A01D34/66 , A01D43/063 , A01D69/02 , A01D2101/00
摘要： 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.
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公开(公告)号：US20170265384A1
公开(公告)日：2017-09-21
申请号：US15443207
申请日：2017-02-27
IPC分类号： A01D34/66 , A01D69/02 , A01D43/063
CPC分类号： A01D34/667 , A01D34/64 , A01D34/66 , A01D43/063 , A01D69/02 , A01D2101/00
摘要： 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.
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